ML20126E833

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Emergency Plan Implementing Procedures & Deleted Title Sheets,Including Procedures HNP-8007 Re Decontamination of Clothing & Hats & HNP-8004 Re Dosimetry Issuance & Tracking
ML20126E833
Person / Time
Site: Hatch  Southern Nuclear icon.png
Issue date: 06/11/1985
From:
GEORGIA POWER CO.
To:
Shared Package
ML20126E822 List:
References
PROC-850611, NUDOCS 8506170236
Download: ML20126E833 (889)


Text

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PAGE 1 OF 4 G ------ ...---------------------------------- -------_---------------------.

DOCUMENT NUMBER:

DOCUMENT TYPE:

RADIATION PRdTECTION PROCEDURE 62RP-RAD-005-0 DOCUMENT TITLE:

DECONTAMINATION OF PROTECTIVE CLOTHING AND HARD HATS X SAFETY RELATED '

/*/

NON-SAFETY RELATED EXPIRATION DATE: '

REV. APPROVED APPROVED EFFECTIVE DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE NO. __---- _---__ _____-__--.

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.V MGR-0002 Rev. 1 (

i 8506170236 850611 PDR F

ADOCK 05000321 PDR

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62RP-RAD-005-0 0

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(_/ 2 of 4 DECONTAMINATION OF PROTECTIVE CLOTHING AND HARD HATS A. PURPOSE To establish a standard procedure for handling radioactive contaminated protective clothing.

B. FREQUENCY As required C. REFERENCES 62RP-RAD-Oll-0, Shipment and Receipt of Radioactive Materials D. SAFETY Observe Georgia Power, Safety, Section 0.

Observe radiation protection procedures.

[) E. GENERAL Radioactive contaminated protective clothing requires special handling to insure that such clothing is not inadvertently sent to an unlicensed commercial laundry or that contamination on the dirty clothing is not spread to an uncontrolled area. Clean laundry returned for re-use by a licensed facility requires special monitoring to insure that it presents no significant hazard to personnel. It is the responsibility of the Health Physics staff to insure that all protective clothing used in Radiation Control Areas is properly monitored, packaged, and shipped to a licensed laundry for decontamination. When clean laundry is returned to the station, the staff insures that it is properly monitored and made available for use by personnel entering Radiation Control Areas requiring protective clothing.

F. HANDLING PROTECTIVE CLOTHING

1. Preparation of contaminated protective clothing for shipment to laundry.
a. As contaminated laundry containers are filled, the assigned personnel will close and seal the shipping container.

, b. Store filled containers awaiting shipment in designated

' storage area (s). Areas should be posted or roped off.

c. Each container should have the words " Radioactive LSA*

or a Radioactive Materials tag affixed.

r 62RP-RAD-005-0 0

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d. Refer to 62RP-RAD-011-0, SHIPMENT AND RECEIPT OF RADIOACTIVE MATERIALS for shipping information.
2. Handling Hard Hats Used in Contaminated Areas
a. As contaminated hard hat racks are filled, the assigned personnel will remove the hard hats and wipe them off with masslin cloth. Health Physics will then survey the hard hats to determine if they are within the contamination limits of 5.a below. The hard hats that are within the limits will be returned to service. The hard hats that fall outside the limits will be placed inside a purple plastic bag.
b. Health Physics will survey the bag and affix a Radioactive Material tag to the bag.
c. The contaminated hard hats will then be delivered to the respirator decon room for decontamination and re-use at control points / dress out areas. .
d. All hard hats will be surveyed after decontamination to O ensure they are within the limits of 5.a below.

NOTE The foam sweat band in these hard hats is unnecessary and may be removed if decontamina-tion is not possible.

3. Receipt of Decontaminated Protective Clothing
a. Survey the incoming truck in accordance with 62RP-RAD-011-0, SHIPMENT AND RECEIPT OF RADIOACTIVE MATERIAL.
b. Survey the outer surface of the containers containing the decontaminated laundry as it is unloaded from the truck with a dose rate instrument (E-400 or teletector). Any container reading greater than 2.0 mr/hr at the surface will be set aside and checked.

The container will be opened and the protective clothing will be surveyed to ensure it meets the limits for decontaminated protective clothing in 5 below.

c. If decontaminated clothing is found to exceed the limit in 5 below but is less than 5 mr/hr it will be

() segregated and returned to the laundry for rewashing at the earliest possible convenience. If the decontaminated clothing is greater than 5 mr/hr, it is to be disposed of as radwaste.

62RP-RAD-005-0 0

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4. Surveying Decontaminated Protective Clothing All protective clothing will be surveyed after decontamination. The commercial laundry is responsible for surveying each piece of protective clothing after decontamination. This responsibility is written into the purchase, order by GPC, and the commercial laundry has also insured Georgia Power Company they will meet the radiation levels for protective clothing for reuse in a Q.A. program.

This written Q.A. program is kept on file at Plant Hatch.

5. Radiation Limits on Protective Clothing
a. Hard hats, coveralls, hoo'ds, cloth booties, rubber shoes less than or equal to'0.8 mr/hr beta, gamma, and no smearable contamination.
b. Rubber gloves less than or equal to 2000 cpm above background per probe area with an HP-210 probe, fixed radioactive material and no smearable contamination.

All rubber gloves will be air tested for leaks by the' laundry. Rubber gloves greater than 2000 cpm or

() failing the leak test will be disposed of in radwaste.

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PAGE 1 OF 13 l IDOCUMENT TYPE: DOCUMENT NUMBER:

RADIATION PROTECTION PROCEDURE 62RP-RAD-035

_-----------------------------------_------_---_-------------_-0 DOCUMENT TITLE:

ACCOUNTABILITY OF RADIOACTIVE SOURCES X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: [

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE


_-----------_-------- --------- C ---------e --- --__------ _----------

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62RP-RAD-035-0 0

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.. ACCOUNTABILITY OF RADIOACTIVE SOURCES A. PURPOSE To define detailed instructions for the accountability of radioactive sources.

B. FREQUENCY As required C. RE F ERE'; 'ES

1. 10 CFR Parts 20, 30, 70 and 71
2. Reg. Guide 7.3
3. 60AC-HPX-007-0, Control of Radioactive Materials
4. 60AC-HPX-004-0, Radiation and Contamination Control
5. Technical Specifications, Unit 1, 3.8, 4.8, 6.8, 6.10, 6.11

) 6. Technical Specifications, Unit 2, 3.7.5, 4.7.5, 6.8, 6.10, 6.11 D. SAFETY Observe radiation protection procedures.

E. PRECAUTIONS

1. Care should be exercised when handling sources to minimize radiation exposure.
2. H.P. Superintendent's or Department Manager's approval should be obtained prior to use or handling of highly radioactive sources, i.e., those with contact dose rates, calculated or measured, greater than 1 Rem /Hr, beta plus gamma measured with an RO-2A or neutron measured with a PNR-4. In addition, use of such sources should be controlled by issuance of an RWP.
3. Consider the use of shielding and remote handling tools.
4. Sources with 4100 pci beta-gamma activity and 45 pel alpha activity do not require leak test. If a leak test is required and has not been performed within the last six '

() months, a leak test will be performed prior to use.

62RP-RAD-035-0 0

() 3 of 13 F. RECEIPT OF RADIOACTIVE MATERIAL

1. All receipts of Radioactive material are to be recorded on Data Package 1, Data Sheet 1, Source Receipt and Transfer Log.
2. If the radioactive shipment is a source for chemistry, training department, counting room, or Health Physics use, then refer to Data. Sheet 1 of Data Package 1 for the applicable isotope, determine whether exempt or non-exempt (Refer to 10CFR30 sect. 30.14 and 30.18), and assign the source the next consecutive number. Source Receipt and Transfer Log will be alphabetized to aid in ease of source number assignment.

NOTE If the shipment was CO-60 then look up CO-60 on Data Package 4. If the last CO-60 source entered was CO-60-31, then assign this source the unique number of CO-60-32. Attach this number to the source.

('T Complete Data Package 1. Complete Data Package 2 only for

\> non-exempt. Attach Certificates of Calibration to Data Package 2. Do not make the mistake of attaching Certificates of Calibration to the Receipt Log (Data Package 1).

3. Health Physics and Chemistry personnel will ensure that sources and/or source containers bear labels that indicate the type, quantity, date quantity measurement made, source number, and appropriate radiological postings and symbols.

-4. A complete inventory will be maintained by the Health Physics staff of all non-exempt licensed radioactive sources on-site on Data Package 2, Data Sheet 2. At intervals not to exceed 6 mo., a list of all such sources should be obtained and checked against the source inventory Data Package 2, Data Sheet 2. The Source Continuation Sheet, Data Package 3, Data Sheet 3 should be updated anytime a liqu'id or gas source is diluted, divided, or disposed of.

All nonexempt sources must be accounted for.

5. In cases where physical inventory cannot be performed due to ALARA considerations, inaccessibility, or the source is unsealed, an indirect method may be used such as dose rates, counting, or verification of physical seal (tamper seal) on g3 a housing where tampering could be easily detected as with

(_) faulty or discarded IRMs, LPRMs, SRMs, and TIPS.

62RP-RAD-035-0 0

f) 4 of 13 v

G. LICENSED _AND NON-LICENSED SOURCES

1. If a li' censed (non-exempt) source is determined to be lost, a Deficiency Report will be prepared in accordance with 10AC-MGR-004-0, Deficiency Control System.
2. Non-licensed sources (exempt) are not required to be inventoried by this procedure.
3. Records will be kept of all receipts, transfer, disposal, leak tests and other information pertinent to byproduct licensed material. Sealed sources shall be leak tested as per 62RP-RAD-007-0.
4. Transfer of radioactive materials (except radioactive materials produced from power plant operation) will be docur.ented on Data Package 1, Data Sheet 1 - Source Receipt and Transfer Log. All radioactive shipments off site will be documented per 62RP-RAD-011-0.
5. In-plant use of sources will be controlled as specified in 60AC-HPX-007-0, 62RP-RAD-010-0. -

H. USE OF SOURCES

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l. A Laboratory Foreman or designated alternate will control the use of radioactive sources except as specified in section E.2. ,
2. Sources will be stored in designated, locked storage areas.
3. An "In-Plant Source Sign-Out Register", similiar to that shown in Figure 1, should be used to check sources out of locked storage to the authorized user.
4. The user must acknowledge receipt of the source by signing his name on the In-Plant Source Sign-Out Register.
5. Except as required by a Radiation Work Permit (RWP) and/or work area involved, protective clothing is not required for source handling.

.6. When work is completed, the source user will return the source to the checkout point and notify lab foreman or designated alternate so that the date and time of return can be logged.

I. DILUTION OF RADIOACTIVE LIQUID STANDARDS l

() 1.- Complete accountability of all non-exempt radioactive sources must be maintained at all times.

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62RP-RAD-035-0 0

/~' 5 of 13

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2. Calculate the quantity of parent source material required for-the dilution.
3. Pour.this amount plus a small excess of the parent source into a clean container. Never pipet directly out of the parent source container. Never pour any excess back into the parent source.
4. Using Class A Pipets, pipet the exact amount calculated in step I.2 into a clean volumetric flask and dilute to the mark using demin water.

Note The final standard solution may contain a dilute acid to prevent plate out of the standard. Normally, a .1% acid solution is sufficient (ex. nitric acid). l S. Update Data Package 2 for the parent and Data Package 3 for daughter source data. Complete data sheet 2 for daughter source. Assign the daughter source the next consecutive -

number. Prefix this number with the parent number.

() NOTE The fourth standard made from the parent material of CO-60-7 would bear the number

, of C0-60-7-4. A standard with the number of co-60-7-4-1 would indicate that it was the first standard (daughter) made from the parent source of CO-60-7-4 which was a dilution of CO-60-7 which was the primary source.

6. If a dilution is to be made from the daughter source, the l daughter source now becomes the parent source from which subsequent dilutions can be made.

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7. If the daughter will be stored in the Radioactive Material Storage Area, then Data Package 2 must be completed and maintained for the life of the standard.
8. Every source from which dilutions are made must be listed on Data Package 3 under the original Source Data before the dilution is made. In this manner, all subsequent dilutions can be accurately tracked.

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62RP-RAD-035-0 0

6 of 13 (a~)

9. Because the chance for errors increases with each dilution,

.the number of dilutions from the parent to the final g daughte'r should be kept to a minimum. All intermediate dilutions that will not be used should be discarded.

10. When sources decay more than four halflives, they should be discarded. The method of disposal is to be approved by a Laboratory Supervisor. When a source is discarded, log the disposal date on Data Package 1, Data Package 2, and Data Package 3. Remove Data Package 2 from the log book and forward to the lab foreman for review.

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62RP-RAD-035-0 0

7 of 13 FIGURE 1 IN-PLANT SOURCE SIGN _OUT REGISTER SOURCE SOURCE ACTIVITY DATE & TIME SIGNATURE PURPOSE ISSUED BY DATE 6 TIME f

NUMBER OUT (or USER) RETURNED

______.____._____..____.. . . . . . _ _ _ _ _ _ _ _ _ _ _ __________.______----- =- =====- =___________.________________. _____________

______..___._________.___ - _ _ _ _ . . _ _ _ . _ _ . ....____-_...__== _______._________.__.. ___ _- - _ _ _ _ _ _ _ _ _ . ___.____ __..

___________.___......_____________ ...... .-______________.....____ =___.______________ _ . _ _ _ _ _ _ _ _ _ _ _ _ . ......_______

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8 of 13 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62RP-RAD-035-0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: As Required .

COMPLETED BY:

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DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTANCE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2

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DATA PACKAGE l_

DATA SHEET 1 SOURCE RECEIPT AND TRANSFER LOG i

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DATE $81PPED SHIPPED SEMARES f SY

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SOURCE e SOLID EXEMPT 08 QUANTITY LOGGED SY',REMARES SHIPPED TO DATE/ 150TUPE LIQUID MON *EEERPT TIME ON gam

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10 of 13 PROCEDURE DATA PACKAGE 2 4

DOCUMENT NO: 62RP-RAD-035-0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: 6 Months -

COMPLETED BY:

.O DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTANCE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 62RP-RAD-035-0 R00 FIGURE 3 Page 1 of 2

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62RP-RAD-035-0 0

. L 11 of 13 DATA PACKAGE 2 DATA SHEET 2 SOURCE INVENTORY CONTROL LOG SOURCE SOURCE NUMBER SOLID . LIQUID . GAS HALF LIFE ASSAY DATE SOURCE ACTIVITY DATE RECEIVED RECEIVED FROM.

DATE DISCARDED INVENTORY RECORD DATE LOCATION ACTIVITY INVENTORIED BY r

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RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: ,

COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKM3 FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIt (N ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTANCE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

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DATA PACKAGE 3 DATA SHEET 3 CONTINUATION SHEET FOR ORIGINAL SOURCE DATA NEW SOURCE DATA DISPOSAL DATE NUMBER ACT AMOUNT NUMSER ACT.* VOLUME INT. TYPE USED mi pct /mi DATE INT.

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  • Decay correct activity to date of use.

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() PROCEDURE Dosimetry Issuance and Trackin.q PROCEDURE TITLE HNP-8004 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( )

, APPROVED APPROVED REV.' y DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER

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18 Pages 1-13, 1G, 18, ,

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REGPONGIDLE CECTION GAFETY RELATED ( X ) NON-CAFETY RELATED ( )

APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER g..g 4.

16 Pages 1, 7, & al Q,- _.. 4 . y v [ j g..___.-______[._..__

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PROCEDURE TITLE HNP-800G PROCEDURE NUMOER Lab RESPONSIDLE SECTION SAFETY RELATED ( X ) NON-GAFETY RELATED ( )

APPROVED APPROVED REV. DEOCRIPTION DEPT. GENERAL DATE MANAGER MANAG-7 Pages 1 -

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Radiati on Wo rl< Permit PROCEDORE TITLE HNP -8008 PROCEDURE NUMBER Lab RESPONSIBLE FECTION GAFETY REL.ATED I. X) ,

NON-SAFETY RELATED ( )

APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MA' NAGER MANAGER 18 Pages 4, G, 8, 12-14 & 21 7 '7

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c"/ PROCEDURE Airborne Radioactivitv. Concentration Determination sm PROCEDURE TITLE HNP-8013 PROCEDURE NUMDER .

Lab RESPONSIBLE SECTION SAFETY RELATED ( X ) NON-SAFETY RELATED ( )

.-____ ____-__----___ -__- ,_._._ _ - - _ _ _ _ - _ _ _ _ _ t __ ._.__-________..________

APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGE-

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(._) PROCEDURE Leak __ Testing of Scaled Sources PROCEDURE TITLE HNP-8015 ._

PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( )

_ _ _ _ _ _ .. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . L________________. . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .._______.

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PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-sal-t..tY RELATED ( )

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT b

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(_/ PROCEDURE Radiation & Contamination Control of on Site Mobile Drveleaning Facility PROCEDURE TITLE HNP-8025 PROCEDURE NUMBER

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT n  ;

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HNP-9

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V- PROCEDURE Stirvev u Freguency and Work Scheduling PROCEDURE TITLE HNP-ROSO PROCEDURE NUMDER Lab RESPONSIBLE GECTION SAFETY RELATED ( ) NON-GAFETY RELATED ( X )

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APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAG--

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APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER

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APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER

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PROCEDURE Mini-Scaler Model MS-2 PROCEDURE TITLE HNP-8106 PROCEDURE NUMBER Lab-RESPONSI LE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( )

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT

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______-.____________________ F________________.. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .i._______.

s

______..____________________ s________________..________________ ._______.

HNP-9

GEORGIA POWER COMPANY w

HATCH NUCLEAR PLANT

(' _)\ PROCEDURE Beta Continuous Air Monitor Model AMS-3 Operation and Calibration PROCEDURE TITLE HNP_8148 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( )

_ _ _ _ _ _ + _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .-________________.p________________.-________

APPROVED APPROVED REV, DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER

._____ p____________________.s_______________ r________________ m__

O " DELETED _ REPLACE /_

fab.

BY 62HI_OCB_041_O" C f-

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______. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . -________________ p________________ _______.

______4____________________.- _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .,________________.s________

_ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . ________________ . - _ - - = _ _ _ _ _ _ _ _ _ _ .s________

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-_____- _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ..________________+_______.

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I HNP-9 1.

GEORGIA POWER COMPANY HATCH NUCLEAR PLANT i

A <

K/ PROCEDURE High Range Survey Meter Extended Chamber Cutie Pie Model CP-TP-5B Operation and Calibration PROCEDURE TITLE HNP-8149 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X_ ) NON-SAFETY RELATED ( )

- _ _ _ _ _ .L________-- _ _ _ _ _ _ _ _ _______- - - - _ _ _ . -

__________p________

APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER

______4_____________________ ________________ ________________ p__ ___. .

2 " DELETED - REPLACE "#'2I BY 62HI-0CB-042-0" b)

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- _ _ _ _ _ + _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .-________________.________________ - _ _ _ _ _ _ _ .

HNP-9

GEORGIA POWER COMPANY i

HATCH NUCLEAR PLANT m

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(_ PROCEDURE

o Xetex Digital Dosimeter Model 415A
  • Operation and Calibration PROCEDURE TITLE HNP-8150 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( )

- _ - - - - ._ _ - - - - _ - _ _ _ _ _ - - _ _ - - - - . p-----__ _------ --.-_----- - - - - - - - - _ . _--_--_-

APPROVED APPROVED REU. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER


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0 " DELETED - REPLACE

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PROCEDURE Panasonic UD-702 TLD Reader Operation and Calibration PROCEDURE TITLE HNP-8151 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X ) NON-SAFETY RELATED ( )

5-------___----_-_----------_-__----_-+_--_--__--__-___ ________.

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BY 62HI-0CB-044-0" ,hh '

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HNP-9

GEORGIA POWER COMPANY HATCH NUCLEAR PLANT

'm)

(/ PROCEDURE Instrument Calibration Intervals PROCEDURE TITLE HNP-8152 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( )

- - - - - _ .. _ - - _ _ _ _ _ _ _ - _ - - - - _ _ _ - ..-_-_--_-________..--_____---_-____a.________

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---___+ - _ _ - _ _ _ _ _ _ - _ _ _ _ _ _ _ - - .._-__- _ - _ - - - - _ _ ,:-______

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_ _ _ _ _ _ .. _ _ _ _ _ _ _ _ _ _ _ _ _ _ - - - - _ __.-________-___-__4______---_-_____.._______.

- _ _ - - .. - - _ _ _ _ - - _ _ _ _ _ - _ _ _ _ _ - ..________________ n_-______________. ._______.,

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HNP-9

GEORGIA POWER COMPANY

,x HATCH NUCLEAR PLANT

, i

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K/ PROCEDURE Dositec Digital Alarm Dosimeter Model DOS 501 Operation and Calibration PROCEDURE TITLE HNP-8153 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( )

- - _ _ _ _ .s__-_.._____._______. ________________.p_______= = _ _ _ _ _ .s________.

APPROVED APPROVED REU. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER

- _ _ . . _ . s___________________. -____ _.________ +____________= .

0 " DELETED - REPLACE r__ M__.-

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HNP-9

GEORGIA POWER COMPANY HATCH NUCLEAR PLANT I

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PROCEDURE HP Well Counter System PROCEDURE TITLE HNP-8154 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( )

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HNP-9

GEORGIA POWER COMPANY HATCH NtJCLEAR PLANT

-m k)s PROCEDlJRE Airborne Contamination Monitor Model RAl(-PR Ogeration and Calibration PROCEDlJRE TITLE HNP-8155 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X J) NON-SAFETY RELATED ( )

.....__.__________4.___....____.__.._._____..

APPROVED APPROVED REV, DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER 1 Pages 1, 3, 5-6, 9 and 11 ' 7 -' *

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT t

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(/ PROCEDURE Gamma 10 Portal Monitor Operation & Functional Test PROCEDURE TITLE HNP-8156 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED (X) NON-SAFETY RELATED ( )

+--_-_------_----_-_-3---____--- __.p-_-_-_____----___.--__--__

APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER

--_-_-_-__---_-___--_--_--- p_-____________ p-__----_-____----__-- - - _ .

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GEORGIA POWER COMPANY

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HATCH NUCLEAR PLANT PROCEDURE Use and Calibration of the Lab Dwyer Magnehelic Gage PROCEDURE TITLE HNP-8157 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( )

-_-_- -p_---_-_--_-----___--__---__-----_--__.p--__----__---_---_-___---_

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HNP-9

GEORGIA POWER COMPANY HATCH NUCLEAR PLANT

. /T

(_J PROCEDURE Eberline Model PM_6 Portal Monitor PROCEDURE TITLE HNP-8158 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X ) NON-SAFETY RELATED ( )

_ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . s________________.s________________.________.

APPROUED APPROVED REU. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER

______+ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _4________= -__ p________________+ _ _ _ _ _ _ _ _

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HNP-9

GEORGIA POWER COMPANY HATCH NUCLEAR PLANT

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( ) PROCEDURE

. <J Victoreen Electrometer Model 500 PROCEDURE TITLE HNP-8159 PROCEDURE NUMDER Lab RESPONSIDLE SECTION SAFETY RELATED ( X ) NON-GAFETY RELATED ( )

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT

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PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X) NON-SAFETY RELATED ( )


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, SAFETY RELATED ( X) NON-SAFETY RELATED ( )

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APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER 0 New Procedure / / -


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HNP-9

GEORGIA POWER COMPANY HATCH NUCLEAR PLANT

) . PROCEDURE EC4-8 Portable Area Monitor PROCEDURE TITLE HNP-8163 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X ) NON-SAFETY RELATED ( )

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GEORGIA POWER COMPANY HATCll NUCLEAR PLANT s

Lv / PROCEDtJRE Operation of Waste Separa' tion & Temanrary Giora.ge Facility PROCEDijRE TITLE l_ _INP -8430 l PROCEDt.tRE NtJMDER Lab RESPONGIDI..E SECTION SAFETY RELATED ( X ) NON-SAFETY RELATED ( )

APPROVED APPROVED REV. DESCRIPTION DEPT, GENERA!_ DATE MANAGER MANAGER 4 Pages 1, 5-G &. 10 12 Am (jt ,

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k GEORGIA POWER C MPANY HATCH NUCLEAR PLANT i

J PROCEDURE Ogeration of the Model B-100 Comgactor PROCEDURE TITLE HNP-8431 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( ) NON-SAFETY RELATED ( X) q________________..________

APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAGER 2 Pages 1 -u - -

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HATCH NUCLEAR PLAN 1 l l

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(] PROCEDURE '

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Decontamination of Protective Clothin_q and Hard Hats PROCEDURE TITLE 1

HNP-8007 '

PROCEDURE NUMBER Lab RESPONSIBLE SECTIOA

, SAFETY RELATED ( X) NON-SAFETY RELATED ( )

APPROVED APPROVED REV. DESCRIPTION DEPT. GENERAL DATE MANAGER MANAG-

. . _ _ _ _ _ . .____________________ .____________ _ ___ _____ '__-___.L_____ ._

9 Page a M '

c DELETED - Replaced by [ N

.__9___ ._--.-32RPd AD_-005.0 ____. .;.___ . . _ _ _ _ _ _ _', _ _4_ _'N_ _ _y' _ _h.___.. 1 . #4

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Q . _ _ _ _ _ _ . .____________________ .___~_____________ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ..________

J _ _ _ _ _ _ . ____________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .-________________ ._______l HNP-9 m,

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GEORGIA POWER COMPANY

-s (u.i l HATCH NUCLEAR PLANT

.. PROCEDURE Control And Accountability Of Radioactive Sources _

PROCEDURE TITLE HNP-8017 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X )

NON-SAFETY RELATED ( )

-__ __..____________ _____. _.r__. _____ _ _ ____

REU. APPROUED APPRCUED DESCRIPTION DEPT. GENERAL , DATE MANAGER MANAGER -

t 10 .. ___.__ ' _______ . . _ _

" DELETED _ REPLACED />M_ 3_

t, BY 62RP-RAD-035-O" ' ' -

___y ._ _ 8_ _ _ _ y_ .,_ _'/ ' _ _ _ _. '?_S. .gs*ff p ______..____________________ ..___________

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PAGE 1 OF 6 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-HPL-001-0 DOCUMENT TITLE:

EC4-8 PORTABLE AREA MONITOR X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: d REV. APPROVED APPROVED NO.

EFFECTIVE DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE

__________----_-_______-_______ .____-_ ____-____ r____ _ _ _ _ _ _ , ___________

3 0 Replaces HNP-8163

(

_ _/ &_ __ _____ _____ _6_ _/_g

__ __ 6_#__#_____

4

____________________________________________________1________________

MGR-0002 Rev. 1 e

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I I-62hI-HPL-001-0

(_) 0 2 of 6 EC4-8 PORTABLE AREA MONITOR A. PURPOSE To provide an operation and calibration procedure for the EC4-8, Portable Area Monitor.

B. FREQUENCY

1. Operation: as needed
2. Calibration: semi annual C. REFERENCES
1. Radiation Monitoring System II Technical Manual, TDC# 6040M.

D. SAFETY

1. Georgia Power Safety, Section "O" r

1, 2. Follow all Radiation Protection Procedures E. TEST EQUIPMENT N/A

~

F. DESCRIPTION OF INSTRUMENT The EC4-8 Portable Area onitor is designed for the detection of gamma radiation and ind. cates radiation dose rates in mr/hr. It can be used locally or remotely as an Area Radiation Monitor.

G. DESCRIPTION OF CONTROLS

1. External
a. Meter; a five decade vertical scale ranging from 0.1 mr/hr to 10,000 mr/hr.
b. -High Alarm Light and Reset; lights when the high alarm limit has been exceeded, depressing the light resets t the alarm,
c. Alert Alarm Light and Reset; lights when the alert limit has been exceeded, depressing the light resets the alarm.

\]-

d. Normal Light and Source Check; lights during normal operation and activates the source check if so equipped.

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rg 62HI-HPL-001-0 h.)

0 3 of 6

e. Alarm Acknowledge; resets the alarm buzzer.
f. Alarm Buzzer; sounds when the high alarm limit is exceeded.
g. Alarm Beacon Light; lights when the high alarm limit has been exceeded.
h. Remote Detection; side mounted detachable GM Detector (DAl-6).
2. Internal
a. Power on; provides on - off capability for AC power.
b. R-15, Rec Cal; remote recorder voltage calibration adjustment.
c. R-20, Span; Mid Range Calibration pot.

. g-) d. R-13, Zero; Low Range Calibration pot.

y

e. R-24, High Alarm Set; sets high alarm limit.
f. R-23, Alert Alarm Set; sets alert alarm limit.

9 R-18, Rec Adjust; provides voltage adjustment for remote recorders,

h. S-5, Time; Response time selection fast or slow,
i. S-6, Alarm Set; causes meter to read the high or alert alarm setting which ever is chosen,
j. S-7, Alarm lock; causes alarms to " Lock In" or reset automaticaly if the radiation field drops below the alarm set points,
k. S-8, Alarm Logic; provides for a positive (+) or negative (-) alarm voltage logic.
1. R-57, Linearization Control; provides calibration compensation in the upper decade of the meter display.
m. R-4, Pulse width; adjusts the pulse width output of Ol.

H. OPERATION OF INSTRUMENT

-p l \ 1.

Be sure instrument bears a current calibration sticker.

L_

1 3

62HI-HPL-001-0

%-) 0 4 of 6

2. Plug instrument into 110 volt AC outlet.
3. Connect detector and place it in the desired location.
4. Open case and turn instrument on.
5. Switch S-6 to.the Alert position, the meter will read the Alarm Setpoint - adjust R-23 to set the Alert Alarm Point.
6. Switch S-6 to the Alarm position, the meter will reaa the alarm set point, adjust R-24 to set the High Alarm Point.
7. The instrument is ready for use.

I. SEMI ANNUAL CALIBRATION (DAl-6 DETECTOR)

1. Expose the detector to a radiation field of .5 mr/hr.
2. Adjust the zero until the meter is reading correctly.
3. Expose the detector to a radiation field of 100 mr/hr.

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4. Adjust the span control until the meter is reading correctly.
5. Expose the detector to a radiation field of 8000 mr/hr.
6. Adjust R-57 (Lin) until the meter reacing agrees with the field intensity at the detector.
7. Repeat steps 1-6 until no further adjustment is necessary.

Enter all of the original readings in_the As Found column on Data Package 1 and all of the final readings in the As Left column.

8. Place a sticker on the Instrument and the detector bearing the required calibration information. Be sure to indicate which instrument and detector are matched.
9. Complete Data Package 1.

-O

7.

,-.\ 62HI-HPL-001-0 0

5 of 6 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI.HPL-001-0 SERIAL NO: R00-MPL NO:

RTYPE: G15.14 XREF: N/A TOTAL SHEETS: 2 FREQUENCY: Semi Annual COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

62HI-HPL-001-0 R00

[}

FIGURE 1 Page 1 of 2 i

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62HI-HPL'-001-0 0

6 of 6 DATA PACKAGE 1 PORTABLE AREA MONITOR'EC4-8 Sn8 MPLt Location Field Found (mr/hr) Left (mr/hr)

.5 mr/hr 100 mr/hr 8000 mg/hr Maintenance w

Remarks By Date Next Cal Due 4

5 4

f~ Page 2 of 2

( 62HI.HPL.001-0 R00 i

FIGURE 1 Page 2 of 2

3 GEORGIA POWER. COMPANY s ,) HATCH NUCLEAR PLANT PAGE 1 OF 9 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-HPL_002-0 DOCUMENT TITLE:

MULTI-SCALE CHECK SOURCE X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: //

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL GR, DATE DATE

______ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . .__________o_ ________ _____ ______ _ _ _ _ _ ..___ ______

0 Replaces HNP-8164 MO g g, y j g jj g'

________--___--__________~__-__--___--_--__--_------_-------____...-___-----

__________-__--_-_-____--~___--_-_______--_____-__--__---__ - - - - _ .._____-___-

s MGR-0002 Rev. 1 O

- 62HI-HPL-002-0 0

2 of 9 MULTI-SCALE CHECK SOURCE A' . PURPOSE To provide an operating guide for the use of the multi-scale check source.

B. FREQUENCY

1. - Use - as required
2. Calibration - annual C. REFERENCES ANSI N323 - 1978, Radiation Protection Instrumentation Test and Calibration D. SAFETY

(} Observe Radiation Protection Procedures.

E. TEST EQUIPMENT Test equipment consists of a check of the check source reading compared to a set of calibrated instruments.

F. DESCRIPTION OF INSTRUMENT

'The multi-scale check source is designed for source checking RO-2A's, RO-3A's, RO-4A's, and E-400's on all scales.

Teletectors can also be checked on the 50 mR/hr and 2 R/hr scales. All instruments require the use of a special jig that assures exact placement of the detector.

G. DESCRIPTION OF CONTROLS

1. . Locking Bar: a safety mechanism that provides a means of locking the check source with all attenuators inserted when not is Lse.
2. Shielded Cover: a lead chield designed to maintain a <2 mR/hr dose rate above the source with the shield cover closed.
3. Attenuator Rods: three rods on the front of the check

() source that control the placement of the attenuators within the check source. These provide a means of varying the dose rate thus providing the ability to source check instruments on various scales.

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, ~-- , , - - ,,- .- , ,

62HI-HPL-002-0

() 0 3 of 9 H. OPERATION

1. The individual who is to be operating the check source is required to be on an RWP and use a finger ring.
2. Obtain the key to the check source from the HP key cabinet.
3. Unlock the locking bar and remove it. The shielded cover can then be raised.
4. Do not pull any of the attenuator rods at this time.
5. Obtain the proper jig or spacer, depending on the instrument to be used. Place it in the check source well. It will provide the proper geometry for the desired instrument.
6. Turn the instrument on, check the battery, zero the instrument (if applicable). The beta shield is to be open on ion chambers.
7. Using Data Sheet 1 as a guide, begin.by turning instrument f to lowest scale and pulling the corresponding attenuator

\ rod. Push rod back in, turn instrument to next highest scale and pull the appropriate rod (s). Continue until all scales have been source checked on that instrument.

.8. Fill in the required information for each instrument on Data i Sheet 2. Indicate if the instrument passes or fails the source check.

9. Each instrument must fall between the high and low readings listed on Data Sheet 1. If the instrument fails the source check, it must be removed from service and tagged with a TC!

SHOP tag. Indicate the results of the source check on the tag along with any other problems or malfunctions encount-ered.

10. Insert all attenuator rods when the source check is complete.

i

11. Repeat steps H.5 through H.10 for each instrument.
12. When source checking is complete, insert all attenuator rods. Close the shielded cover and insert the locking bar through the rings on the attenuator rods. Secure the locking bar with the padlock and return the key to the HP key cabinet.

I. ANNUAL CALIBRATION OF CHECK SOURCE +

O

  1. 1. Obtain 3 instuments of each type, RO-2A's, RO-3A's, RO-4A's, E-400's and teletectors calibrated within the last 7 days but not used.

, r-,+1 v-wm

62HI-HPL-002-0 0

4 of 9

2. Follow steps H.l.through H.6 and take dose rate readings on each scale as stated on Data Sheet 1.
3. Average the readings of-the three instruments-for each scale indicated on Data Shee.t 1. To determine the low reading, take -20% of'the average reading. To determine the high reading, take +20% of the average reading. Record the low and high reading for_each scale and instrument indicated on Data Sheet 1.

4.. Af ter completion of Data Sheet 1, place a copy in a clear acetate folder and post in an area visible from the multi-scale source.

O

62HI-HPL-002-0 f(

O 5 of 9 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-HPL-002-0

~

SERIAL NO: ROO.

MPL NO: N/A RTYPE: Gl$,14 XREF: N/A TOTAL SHEETS: 3 FREQUENCY: Annual

() COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

() 62HI-HPL-002-0 R00 FIGURE 1 Page 1 of 3

- 62HI-HPL-002-0

(. .

0 6 of 9

  • -DATA PACKAGE 1 Data sneet 1 ANNUAL CALIBRATION OF MULTI. SCALE SOURCE RO-2A SCALE LOW READING HIGH READING ATTENUATOR ROD # PULLE 10 mR/hr

.... .. ......_w..___.........__ ..........__._...........D.

None

.500 mR/hr. 1 5 R/hr 1-2 50 R/hr 2

.... _.....J...._____......______ _....._..........__.1 .._._..._ 3 RO.3A SCALE LOW READI,N,G HIGH READING ATTENUATOR ROD f PULLED 50 mR/hr None 500 mR/hr 1

,("% 5 R/hr 12 50 R/hr 1 2-3 RO.4A SCALE LOW READING HIGH READING ATTENUATOR ROD PULLED

........__....... __........................ ....__......... ..t ........

mR/hr Hone i

, mR/hr 1

[" R/hr l

12 l R/hr 1 2 3 I

i TELETECTOR SCALE l LOW READING

........... ..........._.. fHIGHREADING ATTENUATOR ROD # PUL

............____ . . . . _ _ _ . . . . . . .. . . . . __.. _ _ L( E D 50 mR/hr l 3

2 .R/hr 1-2 Page 2 of 3 62HI-HPL.002 0 R00 FIGURE 1 Page 2 of 3

62HI-HPL-002-0 r3 U 0 7 of 9 DATA PACKAGE 1 (CONT)

Data Sheet 1 (cont)

ANNUAL CALIBRATION OF MULTI. SCALE SOURCE E-400 Low scale response- High scale

. place detector on response - use mark on backside of E-400 jig and shield pull attenuator rod 8 two DATE PERFORMED PERFORMED BY O

Page 3 of 3 62HI-HPL-002-0 R00 FIGURE 1 Page 3,of 3

62HI-HPL-002-0

)- 0 8 of 9

....--.....--............. - ___==-....--............--.......-------.

PROCEDURE DATA PACKAGE 2 DOCUMENT NO: 62HI-HPL.002-0 SERIAL NO: ROO-MPL NO: N/A RTYPE: G15.14 XREF: N/A TOTAL SHEETS: 2 FREQUENCY: Daily

- , COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 62HI-HPL-002-0 R00 r\

U FIGURE 2 Page 1 of 2

62HI-HPL-002-0

/-s \.

-V 0 9 of 9 DATA PACKAGE 2 Data Sheet 2 DAILY SOURCE CHECK LOG INSTRUMENT SERIAL NO. PASS / FAIL DATE CALIBRATION RE MARKS INIT.

DUE DATE l

.......... ........ .. ..._...__........ .............l........ ......

.._....._.__.._.._.._________-..___......_I_._....__I_.....

..._..__....._.......__....____....__. .. ..___....... ,I.........I . .__..

.....__.__ ..._....._.._ ._....._.._.._____.........._.l......_l.._... -

..________........... ....__....... ....__-..__......._l........_.....

...._____.._-_..._...___...._...___....__ _._.....__.._l_........___...

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...... ......___....._......______..____. .. ...._....l..._. .. .__...

.. .......__..... ...... ......_.._____. ......._...._l___........__..

..............__._....__.............__._ _.._.__...._-l.__...... . . _ . . . .

......_....................... .......__. .._....__._--l._....... ...._..

.................__............ ....._... .............l.. ..... ..___.

......_..........._.....-.......... ..._..__...______..l... .._. ____ .

................._... ... . _ _ . . . . . ....... ..........__l......__ . .....

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...........................__....._ ___....__... I l

.................._............_... ......n__......._. ....._..i_ _....

........___............. . .........i...........__... . . ...... .......

.__ ...............__.. . ....._.. ..... .......__.. ........l.......

.......__........_........______....__... ..........__l_...............

Page 2 of 2 62HI-NPL-002-0 R00 s

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FIGURE 2 Page 2 of 2

GEORGIA POWER COMPANY _ _ _ _ _ _ _ _ - - _ _ - _ _ - _ _ _ _ _ - _ - _ _ _ _,

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< HATCH NUCLEAR PLANT

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_____-_-_______________________________________ __PAGE 1 OF B DOCUMENT TYPE: _-______-_____-____-______

HEALTH PHYSICS INSTRUMENTATION DOCUMENT NUMBER:

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ - - _ _ _ _ _ _ _ _ _ _ _ _ - _ -__-____61 _ _ _H_I_- _O_ C B - 0 01 - 0 DOCUMENT TITLE: ___________-___________ _ ,

PLANT FUME HOOD VELOCITY MEASUREMENT X SAFETY RELATED _________-____

NON-SAFETY RELATED EXPIRATION DATE: . /

REV. ___________-__

APPROVED APPROVED NO. DESCRIPTION EFFECTIVE DEPT. MGR. DATE GENERAL MGR.

_____________-_____- __-______ 7 DATE 0 Replaces HNP-8020

_____f______DATE h / _-__ ____________

_______--________-__ _ _K_l_ - ,

___-_ _S_N _St_.

/

_____-_____-_ _ _6 _i - __6_tjL__--.

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si --___ _____---_________--__

Q/ ______

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-___________________--_-__ ___-__-_ _ g (x- ) MGR-0002 Rev. 1 ________------____-_________--__

I e

62HI-OCB-001-0 (N 0 2 of 8 PLANT FUME HOOD VELOCITY MEASUREMENT A. PURPOSE To describe a procedure for measuring the face velocity of the fume hoods in the plant and to assure that a minimum of 100 ft/ min. is maintained.

B. SAFETY

1. Observe safety rules as described in the G.P.C. Laboratory Safety Manual.
2. Observe Radiation Protection procedures.

C. FREQUENCY

1. Following maintenance on motor or belts
2. Once per year ,,

() 3. As prescribed by a Lab Foreman

E. PROCEDURE

1. Fume Hoods
a. Remove the velometer from the carrying case. Place on level surface and check the zero adjustment. This is done with both ports closed.

NOTE In case the pointer does not indicate zero, the zero adjustment screw on the front of the case should be turned slowly.until the pointer indicates zero.

b. Remove the port caps and attach the Lo-Flow probe (Type 6050-P). Measurements with this probe will be made on the 0-300 FPM (feet per minute) scale. The probe should be attached so that the arrow on the probe points to the left when viewed from the front of the instrument.
c. Place the velometer at one of the positions in the face of the hood. See Data Package 1 (Data Sheet 1).

O

62HI-OCB-001-0

(:)

3 of 8 NOTE Refer to Figure 1 for location of all fume hoods to be checked.

d. Move aside from the hood face and note the average velocity'over a period of one to three minutes. Record the value on Data Package 1 (Data Sheet 1).
e. Repeat E.d for the second & third positions in the hood.
f. Average the three velocity readings and record the results on Data Package 1 (Data Sheet 1).
g. If the average velocity for each hood is less than 100 F.P.M., initiate corrective action.

NOTE If hood sashes have to be lowered to meet 100 F.P.M. velocity, measures should be taken to assure that the sashes are not raised above this ~

] level,

h. Repeat section E for all hoods.
2. A. A. Fume Hood
a. Follow sections E.1.a and b.
b. Place the velometer at one of the four positions on the underside of the hood, see Data Package 2 (Data Sheet 2).
c. Place the velometer into one of the four sections and note the average velocity over a period of one to two minutes. Record the value on Data Package 2 (Data Sheet 2).
d. Repeat section E.2.c until all four sections have been measured and recorded on Data Package 2 (Data Sheet 2).

62HI-OCB-001-0 0 4 of 8 FIGURE 1 UNIT ONE MPL LOCATION MPL LOCATION 1P33-P204 WATER ANALYSIS ROOM, 112' T.B. IP33-P102 RWCU, 158' RX BUILDING 1P33-P103 RAD WASTE, 108' R.W. IP33-P105A LAB, 130 CONTROL BUILDING IP33-P104 RAD WASTE ADDITION, 180' R.W.A. IP33-P105B LAB, 130' CONTROL BUILDING 1P33-P101. RCIC DIAGONAL, 106 RX BLDG. IP33-P105C LAB, 130' CONTROL BUILDING IP33-P209 CONDENSATE DEMIN HOOD, 112 T.B. 1P33-P105D LAB, COLD LAB, CONTROL BLDG.

UNIT TWO MPL LOCATION MPL LOCATION 2P33-P209 CONDENSATE DEMIN HOOD, 112' T.B. 2P33-P204 WATER ANALYSIS ROOM, LEFT HOOD 2P33-P101 RCIC DIAGONAL, 106' RX BLDG 2P33-P204 WATER ANALYSIS ROOM, RIGHT HOOD 2P33-P103 R.W.,'112, R.W. BLDG. LEFT HOOD 2P33-P102 RWCU, RX BUILDING 185 2P33-P103 R.W., 112, R.W. BLDG. RIGHT HOOD O

UNIT ONE MPL LOCATION NA Lab, 130' control Bldg., Atomic Absorption Hood (Perkin-Elme r A. A. )

SIMULATOR / TRAINING BLDG.

MPL LOCATION NA Chemistry Training Lab, Left Hood NA Chemistry Training Lab, Right Hood O

, _ - . ~ . - _ _ _ - - . _ - . . _ _ - _ - .. . _

62HI-OCB-001-0

.h 0 5 of 8 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-001-0 SERIAL NO: ROO-MPL NO: N/A RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: As Required r

. COMPLETED BY:

i DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

6 2 HI-OCB-0 01 -0 Roo

!]

FIGURE 2 Page 1 of 2 -

1

l 62HI-OCB-001-0 i ym

'y 0 l

6 of 8 DATA PACKAGE 1 (Data Sheet 1)

PLANT FUME BOOD VELOCITY MEASUREMENT UNIT NO.

TEST EQUIPMENT HOOD LOCATION REASON FOR TEST HOOD MPL NO.

SURV., MR NO. , OTHER 4W O O O ,

M N

s,

  • %L h hL- I
%L L

V (LOCITY WELOCITY (FT/ MIN) (FT./ MIN)

O

. \j P0$fTION U POSITION X PO$! TION Y POSIT!0N Y POSITION W P03! TION Z 50M ALL-POSITION!

  • SUM 4LL 80$ttf M1 6
  • MUST BE GREATER THAN OR EQUAL TO 100 FT/ MIN TO BE ACCEPTABLE.

TEST RESULTS

( ) ACCEPTABLE, ( ) NON-ACCEPTABLE, LAB FOREMAN NOTIFIED REASON FOR NON-ACCEPTANCE / CORRECTIVE ACTION TAKEN:

COMPLETED BY DATE f.__.__......__...... . . . _ _ . . . . ..

O " " ' - c"- '- "

FIGURE 2 Page 2 of 2

62HI-OCB-001-0 0 0 7 of 8 PROCEDURE DATA PACKAGE 2 DOCUMENT NO: 6 2HI-OCB -0 01 -0 SERIAL NO: ROO-MPL NO: N/A RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: As Required

. COMPLETED BY:

DATE COMPLETED:

~

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 6 2HI -OCB-001 -0 R00

.O FIGURE 3 Page 1 of 2 '

e ..

62HI-OCB-001-0

,m, 0 V

8 of 8 DATA PACKAGE 2 (Data Sheet 4J A.A. FUME HOOD SURVELLANCE TEST EQUIPMENT HOOD LOCATION: HOT LAB REASON FOR TEST: SURV , M.R. NO , OTHER VEI.ocITY (FTALIM) POSITION A POSITION 3 POSITIONS A

a POSZZZON C P08171086 D C

D Torn O TOT u + 4 FT/ MIN'

  • Must Dt 1 100 FT/xzu TEST RESULTS '

( ) ACCEPTABLE, ( ) NON ACCEPTABLE, ( ) NOTIFY LAB FOREMAN NOTE THE DAMPER MUST BE OPENED ON THE HOOD PRIOR TO BEING CHECKED.

j COMPLETED BY DATE Page 2 of 2 62HI-OCB-001-0 R00 O

FIGURE 3 i Page 2 Of 2

GEORGIA POWER COMPANY HATCH NUCLEAR PLANT. PAGE 1 OF 16 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-002-0 DOCUMENT TITLE:

MAINTENANCE & OPERATION OF PORTABLE HIGH EFFICIENCY PARTICULATE ATMOSPHERE (HEPA) FILTRATION UNITS X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: d /b REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE

____________________________________ _ ______ __ ____,/_____ _________________

0 Replaces HNP-8040 g h________ _ _ _j

____ Q" g yf j gj

/

- _ ___________________ ______f_____

1.

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_________________n_________________________. _______________________________

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_____ _______________________________________ ____________________ ____J_______

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f F MGR-0002 Rev. 1

  • I #

I r,.m---._,y-w_ y , or - - ,- .-. - e,--- ,m~,- - -,.-----w.,,,r--

62HI-OCB-002-0 0

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5 2 of 16 MAINTENANCE AND OPERATION OF PORTABLE HIGH EFFICIENCY-PARTICULATE ATMOSPHERE (HEPA) FILTRATION UNITS A. PURPOSE

1. To outline the requirements for filter change and general maintenance of the HEPA filtration units.
2. To define operational surveillance of the HEPA filtration units.
3. To provide a system of HEPA filtration unit readiness confirmation.
4. To provide a system of HEPA filtration unit inventory and control.

B. FREQUENCY

1. D.O.P. leakage test of HEPA filters should be performed after any HEPA filter change-out and at least annually.

rg 2. Pre-filter and HEPA filters will be changed out as required tsj by differential pressure.

3.. Spark arrestors should be thoroughly cleaned during each pre-filter change-out.

C. REFERENCES

1. NPO Ventilation / Filtration User's Manual and Log
2. ANSI-N510 Testing of Nuclear Air Cleaning Systems
3. ANSI-101.1 Efficiency Testing of Air Cleaning Systems Containing Devices for Removal of Particulates
4. Regulatory Guide 3.2 Efficiency Testing of Air Cleaning System Containing Devices for Removal of Particles D. SAFETY
1. Observe safety rules outlined in Georgia Power Company, SAFETY, Section "O".
2. Observe radiation protection procedures to limit personnel exposure ALARA and to prevent the spread of contamination.
3. Be alert for conditional changes that might affect the

() requirements for additional radiation protection.

62HI-OCB-002-0

, 0

. T.

3 of 16 E. TEST EQUIPMENT

1. Air Techniques Inc. Model TDA-2E Particulate Detection Apparatus
2. Air Techniques Inc. Model TDA-5A DOP Aerosol Generator F. PRECAUTIONS / LIMITATIONS
1. Contact the electrical maintenance shop for instructions on electrically connecting and disconnecting HEPA units.
2. When using Charcoal Absorber Carts connect both 1000 CFM Charcoal Absorber Carts to a E2000 "2000 cfm" Portable Ventilation System to allow an adequate residence time of approximately 8 seconds.

G. EQUIPMENT USES

1. The portable HEPA filtration units are designed for a variety of uses within the nuclear industry.

The unit may be utilized to provide exhaust ventilation for

/"S containment tents or structures when unfiltered release of m) atmospheric contaminants could inadvertently expose personnel.

2. The unit may also be utilized to provide filtered exhaust ventilation with a corresponding air circulation for void spaces and tanks with oxygen deficient atmospheres where airborne radioactive contaminants may be present.

H. ISSUANCE AND INVENTORY

1. Portable Ventilation Units will be issued from the Respirator Office and recorded on a Portable Ventilation Unit Control Record similar to the one shown in Form 2 (Figure 3).
2. A monthly inventory of the units should be performed by a Health Physics Technician assigned to the Respirator Office. The location of the units should be recorded on the Portable Ventilation Unit Control Record.

I. OPERATING PROCEDURE

1. Review section "D", Safety, and section "F",

Precautions / Limitations.

, 2. Ensure all openings into the containment structure / tent are securely sealed.

( })

62HI-OCB-002-0 0

.()

s- 4 of 16

3. After starting unit log:
a. Date and time started.
b. Differential pressure across pre-filters,
c. Differential pressure across HEPA filters.
d. Dif f erential pressure across Charcoal Absorber, if in use.
4. Ensure inward ventilation flow through the tent / structure inner air lock door.

~

5. The readings in step I.3 should be logged after approximately every 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> of continuous operation and just prior to shutdown.
6. When using the Charcoal Absorber Cart an air sample should be drawn on the outlet of the unit approximately every 8

' hours and prior to shutdown.

J. MAINTENANCE PROCEDURE

() 1. Pre-filters should be changed out when the differential pressure across the pre-filters increases by 1.25" WG, Water Gage, above the initial, clean, pre-filter DP reading.

2. Spark arrestors should always be tho, roughly cleaned when changing pre-filters.

NOTE Always replace pre-filters prior to determining that differential pressure across the HEPA filter warrants HEPA filter replacement.

3. HEPA filters should be changed out when the differential pressure across the HEPA filter increases by 1.25" WG above the initial, clean, HEPA filter DP reading.
4. If documentation of the initial, clean, filter DPs is lost the following parameters should be assumed for clean filter readings.

Elwood NPO Pre-filter .25" WG Pre-filter 2.25" WG HEPA filter 1.0" WG HEPA filter 2.75" WG i

n s-

5. Initiate a Radiation Work Permit (RWP) for Portable Ventilation System filter change-out.

y-_m.- - - . , - - - -

-.--,--,,,.--,-----e m,,-m ,-- - ,- - - . .~, , ,-, ,,., *'m.. _ , . . , _ , , -

62HI-OCB-002-0 0

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'- 5 of 16

6. Initiate a Portable Ventilation System Maintenance Check Off List similar to the one shown in-Form 1 (Figure 2).
7. -Establish a Contamination Area / Airborne Radioactivity Area for filtration unit maintenance.

CAUTION If radiation levels on contact with the filtration unit housing are > 10 MR/HR in the vicinity of either filter element, initial opening and filter element removal should be accomplished inside a containment tent.

8.- NPO Fortable Ventilation System filter change-out:

a. Unlatch and open the door for the filters to be removed,
b. If removing the HEPA filter loosen both the top and bottom clamping mechanisms by using a heavy duty screwdriver to turn the threaded rods counterclockwise. The slotted threaded rods are located behind the rubber plugs on the opposite side of g3 the unit from the filter doors.

~

c. Unfold the installed PVC bag but do not remove it from the unit.
d. Using the PVC bag as a containment remove the pre-filters and spark arrestor or HEPA filter from the unit.
e. Visually inspect inlet and outlet surfaces of the new filters for any irregularities. Enter the inspection results on the Portable Ventilation System Maintenance Check Off List.
f. Place the new HEPA filter or new pre-filter and clean spark-arrestor into a new PVC bag.
g. Stretch the new bag over the units filter doorway.

Ensure the air flow markings on filters are pointing in the right direction and that the spark arrestor is placed upstream of the pre-filters,

h. Install the new HEPA filter or pre-filters and clean spark arrestor.
i. If the HEPA filter was replaced tighten both the upper and lower clamping mechanisms to snug tight. Install

(~},

s-the rubber access plugs, o

62HI-OCB-002-0 0

-h 6 of 16

j. Fold the PVC bag to fit inside the door and latch the door shut.
9. Elwood Portable Ventilation System filter change-out:
a. Reinove both the f ront and rear HEPA filter access panels for HEPA filter replacement. Only the front pre-filter access panel need be removed for pre-filter replacement.
b. If changing out the HEPA filter, relax the tension on the HEPA filter support frame by utilizing the hand crank (s) and removing any wooden wedges.
c. Using a yellow poly bag as a containment carefully remove the HEPA filter or pre-filters and spark arrestor.
d. Visually inspect inlet and outlet surfaces of the new filters for any irregularities. Enter the ihspection results on the Portable Ventilation System Maintenance Check Off List.
e. Install the new HEPA filter or new pre-filters and s clean spark arrestor. Ensure the air flow markings are pointing in the right direction and that the spark arrestor is placed upstream of the pre-filters,
f. If the HEPA filter was changed out raise the HEPA filter support frame by utilizing the hand cranks.

Raise the frame evenly until the outlet side gasket is compressed. Avoid overtorquing the frame which could result in stripping the gears and rendering the unit inoperable.

NOTE If the HEPA filter lifting support frame is inoperable, gasket compression may be achieved by utilizing wooden wedges between the filter support frame and the lifting platform.

Ensure even filter gasket compression.

g. Install all removed filter access panels. Ensure the hand cranks are installed in the clips provided inside the panels.
10. Ensure the differential pressure sensing lines are properly connected.

() 11. Decontaminat? the outside of the unit.

m 1 i

62HI-OCB-002-0 I l

~ 0 l

)  :

7 of 16

12. Complete post filter change-out test:
a. Record new DPs across pre-filters and HEPA filters.
b. If HEPA filter was changed out or removed and re-installed a DOP leakage test should be performed.

NOTE If a DOP leakage test cannot be performed after a HEPA filter change-out the unit can only be used with an HP supervisor's permission. Filter efficiency must periodically be checked by comparing up-stream and downstream air samples.

13. Attach a Unit Readiness Sticker, similar to the one shown in Figure 1, across pre-filter and HEPA filter accesses in such a way that the sticker would be destroyed if either access were opened. Ensure the appropriate use area is indicated on the sticker.
14. Complete the Portable Ventilation System Maintenance Check r~ Off List and submit it to the Respiratory HP Foreman for

(_}/ review and filing.

K. DIOCTYLPHALATE (DOP) TESTING OF PORTABLE HEPA FILTRATION UNITS FOR LEAK RESISTANCE

1. Disconnect Intake Duct.
2. Establish air flow.
3. Warm-up instructions for aerosol generator,
a. Unscrew reservoir closure on top of unit and fill to approximately top of sight gauge on reservoir with dioctylphthalate (DOP). Replace cap when filled,
b. With power and aerosol off, attach line cord to 110 volt supply.
c. Attach line from compressed nitrogen supply to inlet at top of unit. Keep nitrogen supply regulator closed.
d. Turn power on and fully open metering valve on back of unit (full CCW).
e. When ready light goes on after approximately 30

,_ minutes, unit is ready to produce aerosol.

v)

62HI-OCB-002-0 0

'r.

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8 of 16 NOTE After initial startup, the ready light will cycle on and off as heater cools and reheats.

This will not affect testing,

f. Turn aerosol switch on.
g. Adjust nitrogen supply line regulator to 50 pounds.

NOTE The metering valve located in back of the aerosol generator is used to adjust the aerosol output. The concentration will vary by opening and closing the valve. The aerosol will be-emitted from the nozzle on the front of the cabinet in a steady stream of blu'ish white smoke. Once the

. heat has reached the level at which the ready light goes on, the unit will continue to produce aerosol for approxi-mately one half hour.

-O

(,j 4 .- Warm-up instructions for particulate detection apparatus.

a. Set all switches to off position.
b. Plug line cord into a 110 volt power source.
c. Remove caps from the test connections of the HEPA unit.

NOTE When testing filtration units not having test connections:- disconnect lines from pressure taps for magnehelic gauges and delete step d.

d. Insert upstream and downstream probes into test connections and tighten fittings to ensure leak tightness,
e. Attach a 3/8" poly-flow sampling tube from the upstream probe to the upstream fitting on the particulate detection apparatus. Repeat for downstream connections,
f. Set selector switch to zero position; this will protect the electronics during the warm-up period.

6211I-0CB-002-0 O

r

(- 9 of 16

g. Set selector valve to clear position; this permits air to be drawn through the filter and provides clean air for the scattering chamber.
h. Turn power switch to on position; this activates the unit.

i.. Allow five minutes warm-up time,

j. Adjust meter zero control until meter reads zero; electronic-balance is established by this procedure.
5. 100% and Straylight Adjustments
a. Turn selector switch on the particulate detection apparatus to the 100% position; the least sensitive,
b. Set selector valve to upstream position; this diverts the air route from the filter in the unit to the sampling inlet of the probe. For downstream sampling, set selector valve to downstream position.
c. Adjust gain control until a reading of 100 is obtained on the meter; this establishes the upper limit of

' () measurement and provides a direct read-out for the lower scales,

d. Set valve to clear position; thus providing clean air for the light cell.
e. Set selector switch to 0.1% position; the most sensitive. The .01% position may be used if extreme sensitivity is required.
f. Adjust straylight control to obtain reading of 0 on the meter. This adjustment compensates for any incidental light in the system or stray electronic signal which might cause an undesired signal to be relayed to the 2 phototube.

NOTE An ideal setting for the gain control is one in which the control is advanced approx-imately four to six turns clockwise from the full off position. This is usually an indi-cation of an adequate amount of aerosol con-centration for testing. Occasionally the situation occurs when the system being tested uses large volumes of air, causing dilution of the DOP aerosol. Should this be the case

~

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62HI-OCB-002-0 0

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(_/ 10 of 16 and a problem arises with respect to obtain-ing a 100 reading, then every effort should be made to introduce additional aerosol so -

that the 100 reading may be obtained. If this is not possible, then common practice is to adjust the gain control until the reading on the meter is 50. Testing may be performed, and penetration readings obtained should then by multiplied by 2 for relating the reading to a 100 base. It is possible that a setting of 50 may still be out of range, so a base of 40 or 30 may be used. In each case, the penetra-tion readings should be multiplied by the pro-per factor to bring the reading to a 100 base.

Readings made in this manner are possible be-cause the instrument is linear. In all in-stances, proceed to paragraph I.4 aforementioned after base-line has been established.

6. DOP Test of HEPA Unit After the 100% base-line.is established the unit is ready for use.

() a. Set selector switch on 0.1%.

b. Set selector valve to downstream position to permit sampling through the downstream probe.
c. Read the percent penetration meter and record percent penetration.
d. Record results on Data Package 1.

NOTE A meter reading of 100 corresponds to 100%

of the selected value on the selector switch.

If the penetration is too high to be read on the 0.1% scale, then the selector switch should be set to one of the other scales as required to make the readings.

7. Shutdown of Aerosol Generator
a. When testing is complete, close metering valve.
b. Wait until stream of white smoke ceases.

[ c. Turn aerosol switch off.

()

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e 62HI-OCB-002-0 0

11 of 16

d. Turn power switch off.
e. Disconnect-from power supply.
f. Turn nitrogen supply off and allow line to bleed down.
g. Disconnect from nitrogen supply.
8. Shutdown of Particulate Detection Apparatus
a. Turn cal switch to off position,
b. Turn power switch to off position.
c. Disconnect from power supply.
9. Completion of In-Place Leak Test
a. Restore the system for normal operation, disconnect all sample lines, remove upstream and downstream probes, and replace caps on test connections.
b. Notify the HP Foreman that the test is completed.

() NOTE The system shall not be returned to oper-able status if'the results of the In-Place Leakage Tests are unacceptable.

c. Cor)pletetheIn-PlaceLeakTestReport, Data Package 1.
10. Acceptance criteria:
a. Units with leakage of .05% or less have no restrictions.
b. Units with leakage of more than .05% but less than .1%

may be used only with a Health Physics supervisor's permission. Downstream air samples should be taken to ensure adequate filtration.

c. Units with leakage of .1% or more should not be used.

l

(_)

I ,

l

62HI-OCB-002-0 12 of 16 FIGURE 1 UNIT READINESS STICKER-THIS UNIT'HAS BEEN SERVICED AND IS READY FOR USE IN AN UNCONTAMINATED /

CONTAMINATED AREA ONLY. (CIRCLE ONE)

/ H.P. TECH.

Date t

O-O

62HI-OCB-002-0

~(::) 13 of 16 FIGURE 2 PORTABLE VENTILATION UNIT MAINTENANCE CHECK OFF LIST FORM 1 PORTABLE VENTILATION UNIT MAINTENANCE CHECK OFF LIST 1.. Pre-maintenance test operation data for HEPA filtration unit NO. .

a. Spark arrestor / coughing pre-filter differential pressure
  • H20.
b. HEPA filter differential pressure
  • H20.
2. HEPA filtration unit maintenance RWP NO. .
3. HEPA filter visual inspection results.

satisfactory / unsatisfactory /N/A (circle one)

4. Spark arrestor screen cleaned .
5. .HEPA filtration unit decontaminated.

bA ,/

s a. Available for use in uncontaminated areas.

yes/no- (circle one)

b. Available for use in contaminated' areas only, yes/no (circle one)
6. Unit Readiness Stickers, Figure 1, installed on unit.

yes/no (circle one)

7. HEPA filtration unit NO. _ available for use.
8. Post-maintenance test operation data
a. spark arrestor / coughing pre-filter differential pressure
  • H20.
b. HEPA filter differential pressure
  • H20.

Completed By H.P. Tecnnician/Dare Reviewed H.P.. Foreman O

62HI-OCB-002-0 R00 Figure 2 ,

62HI-OCB-002-0 0

( 14 of 16 FIGURE 3 FORM 2 a..

HEPA FILTRATION UNIT CONTROL RECORD

. TYPE SERIAL, AREA PERSON DATE ASSIGNED RETURNED / BY EQUIPMENT NO. ASS IGNED ASSIGNED BY AVAI LABLE

............................r..............__......................... ..____. ..

I .....___ _ . . . . . . . . . . ____. ... . . _I - ..

I I ..........._........ .... ____... ..

I

........._....... ........ I............. ...___ ............ ............_ ..

I I

. . . . . . _ . . . . . . . . . . . . ..... . . . . ..i_ ..

l I

I .......I...............

l I

I l ........................ ....... ..

I I ..... ......_ __

..................l- I n....._._.n_............ .................... .... ....... ..

.................................................................. ._ ..._.y ..g 62HI-OcB-002-0 R00 N.gure 3

62HI-OCB-002-0 o 0 L

v!

15 of 16 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-002 0 SERIAL NO: R00 MPL NO:

RTYPE: C1b.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: As Needed COMPLETED BY DATE CCMPLETED:

V I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCCRDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 6 2HI-OCB-002-0 R00 FIGURE 4 Page 1 of 2

62HI-0CB-002-0 0

/ \

! J

\/ 16 of 16 DATA PACKAGE 1 IN. PLACE LEAK TES*ING REASON FOR TEST:

( ) NORMAL SURV. ( ) FILTER REPLACEMENT ( ) OTHER TEST PEPPOPMANCE TEST BY Serial number of unit being tested:

Pre-filter differential pressure

  • H20.

HEPA filter differential pressure

  • H20.

STEP ACTION TESTED BY 5.a-f Calibrate penettometer. Start DCP injection.

6.a --......

HEPA filters:

K.4 Percent Penetration Gauge s Readings: 1st ----------------- --------

(\' )

2nd ----------------- --------

K.4 Leakage = ------------------------------t --.-----

Type of aerosol generator used Type cf particulate detection apparatus used All test port caps have been replaced securely Test equipment has been removed from test site Sample lines decontaminated as necessary COMPLETED BY DATE Page 2 of 2 6 2H1-CCB-002-0 R00 O FIGURE 4 V Page 2 of 2 l

l

t v .

GEORGIA POWER COMPANY '

(G

,jx t

HATCH NUCLEAR PLANT PAGE 1 OF 3 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-0CB-003-0 DOCUMENT TITLE:

OPERATION OF THE BARTLETT NUCLEAR MIXING UNIT X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: MN REV. APPROVED APPROVED EFFECTIVE NC. DESCRIPTION DEPT. MGR. DATE GENERAL .G R . DATE DATE 0 Replaces HNP-8044 gg , . . ____

g _.--_ -_--__.-

g _4 .p g._gg - .a _-.

/

r c ..._______________________ ____________ ______ _____________. ._____ ___________

\

i m MGR-0002 Rev. 1

62HI-OCB-003-0 O o 2 of 3 OPERATION OF THE BARTLETT NUCLEAR MIXING UNIT A.- PURPOSE To provide instructions for the safe operation of the mixing station.

B. REFERENCES Bartlett Nuclear Inc. Process Control Program Procedure C. SAFETY Care must be taken to avoid contact with the mixing blades curing operation.. Never place hands or arms into the mixing container while unit is on.

D. DESCRIPTION OF UNIT

1. The Bartlett mixing unit is a portable self-contained hydraulic mixing unit, allowing personnel to simply and O efficiently operate the equipment necessary for waste solidification.
2. Bartlett mixing station consists of the following:
a. Caster mounted thick wall tube 4" steel frame,
b. Removable top plate to facilitate movement or transporting.
c. Removable cylinder motor and swivel lock hoses,
d. 5 gallon reservoir hydraulic system with sight glass filter and exposed valves.
e. Portable control panel for remote operation.
f. 115 volt explosion-proof electric motor.
g. 600 psi pump with gauge and relief valve,
h. Drum stop with lock-down apparatus.
1. Removable mixing blade.

3 Flow control valve for controlling RPM's of mixing

{ blade, i

1 J

62HI-OCB-003-0 g

.\ /

0 3 of 3 E. OPERATION

1. This system is designed to be used with a 55 gallon D.O.T.

specification 17 H drums.

2. Hydraulic system is incorporated for raising and lowering the mixing blade and is operated from the control panel.
3. Switch on power at the control panel (indication light should be on).
4. Engage electric motor switch (indication light should be on).
5. To raise mixing blade, engage "up" switch.
6. To lower mixing blade, engage "down" switch.
7. To turn mixing blade, engage "forwarc" awitch
a. Blade should turn freely.

(]) b. Psi gauge should read approx. 350 psi and flow control meter set at 3.

NOTE Unit is not electrically designed to mix in the reverse mode.

8. Oil line on sight glass should be in line with black indicator line or within 2 inches for operation,
9. During operation, the speed of the mixing blade may be increased by unlocking the flow control meter knob and rod moved up scale. The vortex in the liquid waste should be maintained as long as possible to give a good homogeneous mixture.

O

,s GEORGIA POWER COMPA!1Y

( HATCH NUCLEAR PLAtlT PAGE 1 OF 7 r -__________._______________________.._________. ._ ________________________

DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS It3STRUME!3TATIOt3 62HI-OCB-004-0 1

DOCUMENT TITLE:

PORTABLE IOtl CHAMBER PIC 6A OPERATIO!! & CALIBRATIOli X SAFETY RELATED

!!Oli-SAFETY RELATED EXPIRATIOtt DATE: / df /

REV. APPROVED APPROVED EFFECTIVE 11 0 . DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE O Replaces HtJP-8100 gd u.

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MGR-0002 Rev. 1

62HI-OCB-004-0 0

2 of 7 PORTABLE ION CHAMBER PIC-6A OPERATION At3D CALIBRATION A. PURPOSE To establish standard operation guides and calibration technique of the Portable Ion Chamber, Model PIC-6A.

B. SAFETY

1. Observe safety rules outlined in Georgia Power Company, SAFETY, Section "0".
2. Radiation protection procedures will be observed when calibrating the instrument with radioactive sources.

C. REFERENCES

1. Portable Ion Chamber Model PIC-6A Technical Manual.
2. Gamma Calibrator Procedure 62HI-OCB-017-0.
3. Eberline Instrument Checkout Procedures.

D. TEST EQUIPMENT

1. Electrostatic Voltmeter.
2. Gamma Calibrator.

E. DESCRIPTION OF INSTRUMENT The PIC-6A is a small lightweight portable instrument which measures the dose rate from gamma radiation. The detecting element is a gas filled ionization chamber. Dose rates from 1 mr/hr to 1000 R/hr are measured in two ranges of three decades each. A single rotary switch turns the instrument off, provides a battery check and selects the range. A beta window in the bottom of the instrument provides for the detection of energetic beta particles.

F. DESCRIPTION OF CONTROLS

1. External control O

m____ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ . _ _ _ . _ _ _ . . _ _ . _ _

>,_1 62HI-OCB-004-0

's /

0 3 of 7 Four (4) position switch -

OFF - turns instrument off BATT - the meter should indicate above the BATT cut-off line.

R/hr - instrument will indicate from 1-1000 R/hr mR/hr - instrument will indicate from 1-1000 mR/hr

2. Internal controls
a. H.V. Limit - adjusts the maximum high voltage (up to 3600V) when the instrument is in a radiation field less than the lowest readable.
b. Zero - an adjustable fraction of the reference voltage which is set to yield zero current through the meter with a radiation field equal to the low end meter reading. One control for each scale,
c. Span - An adjustable series resistance uhich is set to yield a meter deflection equal to the radiation field when in a higher field. One control for each scale.

G. OPERATION OF INSTRUMENT

1. Turn position switch to BATT position. Check meter to see if it is within BATT OK limit. If not, tag instrument out with a TO SHOP tag and affix tag to instrument.
2. Turn switch to range desired.

NOTE The meter reading is a direct readout of the radiation intensity in either mR/hr or R/hr, depending on the range.

Fluctuation of the meter is normal and is caused by the random nature of radioactive decay. If measuring radiation below 100 KEV, the most accurate reading is obtained with the bottom of the instrument pointed at the source.

3. Beta Radiation Detection:

With the beta window open, place the bottom of the instrument in close proximity (1/4") with the source to be measured, and note the reading. Close the beta window and measure the source again. If no difference is seen between the open window and the closed window then report the

, radiation as gamma only. If the open window reading is

(-)

'x_/

higher than the closed window reading then beta radiation is present. To determine True Beta Radiation Dose Rate obtain a RO-2A or RO-3A. Measure radiation with window open and window closed. Multiply the difference by the beta correction factor located on the side of the instrument (RO-2A, R0-3A) used.

h 62HI-OCB-004-0 0

4 of 7 H. CALIBRATION OF INSTRUMENT CAUTION Do not touch electrical components with the hands as damage to the instrument may result as well as electrical shock to the operator.

1. Remove cover and silica gel packets.
2. Turn position switch to BATT and verify battery is above BATT cut-off line on meter, if not replace batteries and repeat this step.
3. Turn position switch to Mr/hr range and place instrument in about a 2, 10, 100 and 1000 mr/hr fields respectively, and check the readings. Record readings in the AS FOUND COLUMN of Figure 2.
4. Turn position switch to R/hr range and place instrument in about 2,10, 100 and 200 R/hr fields respectively, and check

(]) the readings.

Figure 2.

Record readings in the AS FOUND COLUMN of

5. If the instrument does not read within + 20% of the true dose rate in each field continue with step H.7.
6. If the instrument checks out properly, record readings in AS LEFT COLUMN of Figure 2, turn position switch OFF, replace silica gel packets with 2 new ones or dried packets, replace cover, complete Figure 2, replace the calibration sticker with a new one bearing this' test date and when the instrument is due for its next routine quarterly calibration.
7. Turn position switch to mr/hr range.
8. Place instrument in about a 2 mr/hr field.
9. Adjust "ZERO" (mr/hr) pot to correct meter reading.
10. ' Place instrument in about a 1000 mr/hr field.
11. Adjust " SPAN" (mr/hr) pot to correct meter reading.
12. Repeat steps H.7 through H.11 until no adjustment is necessary.
13. Repeat steps H.7 through H.11 for the r/hr range using 2 O r/hr and 200 r/hr as the fields and the r/hr "ZERO" and

" SPAN" pots.

62HI-OCB-004-0 0

5 of 7

14. If the instrument does not respond properly in steps H.7 through H.11 perform the following: .
a. Turn position switch to r/hr.
b. Adjust H.V. pot (R16) for 3100 volts. Denote in the remarks section of Figure 2 the M.P.L. number of the voltmeter used to check H.V. if H.V. is checked.

CAUTION Do not short the high voltage. Damage to the transistors will result,

c. Repeat steps H.7 through H.11.
15. If the instrument responds within + 20%, perform step H.6 and record readings in the AS LEFT COLUMN, of Figure 2. If the instrument cannot be calibrated, tag the instrument out with a TO SHOP tag stating the reason (s) it was tagged out.

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.______________________________________________-__GE ___________-____________ _

DOCUMENT TYPE:

DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62

---_________________________________________________HI-OCB-005-0 ____-_-_______________

DOCUMENT TITLE: _

TELETECTOR MODEL 6112B/D OPERATION AND CALIBR

-______________________________________________ATION ____________________________

X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE:

.REV APPROVED APPROVED NO. DESCRIPTION DEPT. MGR. EFFECTIVE

.___ DATE DATE DATE

____________-_______- _ GENERAL ____ ____ MGR.

0 Replaces HNP-8101

_.____-____________-- h _) gg _ - _

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62HI-OCB-005-0

, s_- 0 2 of 12 TELETECTOR MODEL 6112B/D OPERATION AhD CALIBRATION A. PURPOSE To establish standard operation guides and calibration technique of the Teletector Model 6112B and 6112D.

B. REFERENCE

1. Teletector Model 6112 Technical Manual. TDC-0541M
2. Gamma Calibrator Procedure 62HI-OCB-017-0.

C. SAFETY Observe radiation protection procedures.

D. TEST EQUIPMENT

, 1. Gamma calibrator.

{} 2. Beta source.

E. DESCRIPTION OF INSTRUMENT

1. The teletector Model 61123 is a portable battery operated instrument for measuring gamma radiation, for detecting beta radiation and for tracing radioactive materials or contaminations. The fully transistorized printed circuit is contained in a waterproof case. Four 1.5 V batteries in the handle of the instrument serve as the power supply. The teletector 6112B, has a wide measuring range from 0.1 mR/hr to 1000 R/hr in five switch controlled scales, simple operation by a single switch for all functions, and a self contained telescopic probe extendable to a maximum length of 13 feet.
2. The model 6112D is the digital equivalent of the model 6112B with the exception of an integration function and time constant feature added in.

F.- DESCRIPTION OF CONTROLS

1. Model 6112B I
a. External controls, g~ Switch Turns instrument OFF, B (Battery check), 1000

(_) R/hr, 50 R/hr, 2 R/hr, 50 mR/hr, or 2 mR/hr.

b. Internal controls.

62HI-OCB-005-0

(~3

.V 0 3 of 12 (1) P1 potentiometer Adjusts high voltage current (2) P2 and P7 Calibrate 0-1000 R/hr potentiometers range (3) P3 potentiometer Calibrates 0-2 R/hr range (4) P4 potentiometer Calibrates 0-50 mR/hr range (5) P5 potentiometer Calibrates 0-2 mR/hr range (6) P6 potentiometer Calibrates 0-50 R/hr range

2. Model 6112D
a. External Controls (1) Function Switch; turns instrument off, B (Battery Check), R/hr, mR/hr and mR (integrate).

(2) Time constant switch; adjusts. response time on the mR/hr scale in 1, 4, and 16 second intervals.

I)

NOTE The time constant switch is operational in the mR/hr range only. The R/hr range is automatically set at 1 second,

b. Internal Controls (1) P1 potentiometer Adjusts high voltage current.

(2) P2 potentiometer Adjusts the upper range at the R/hr scale.

(3) P3 potentiometer Adjusts the lower range of the mR/hr scale.

(4) P4 potentiometer Adjusts the battery voltage indicated on the LCD.

(5) P5 potentiometer Adjusts the lower range of the R/hr scale.

(6) P6 potentiometer Adjusts the lower mid range of the R/hr scale.

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(') (7) P7 potentiometer . Adjusts the upper range of the mR/hr scale.

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gy 62HI-OCB-005-0

.V 0 4 of 12 (8) P8 potentiometer Adjusts the time base oscillator.

(9) P9 potentiometer Adjusts the upper mid range of the R/hr scale.

G. OPERATION OF INSTRUMENT

1. Turn switch to B. Check meter to see if indicator is within black area on the scale (6112B), or LCD indication is greater than 4 volts (6112D). If not, tag the instrument out using a TO SHOP tag stating the reason (s) it was tagged out.
2. Dose rate measurement
a. To carry out dose rate measurement, place the main-switch into one of the five measuring ranges. Select the measuring range ir. accordance with the dose rate present.

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(_ b. If full scale deflection is obtained as you approach a source of radiation, switch over to a less sensitive range.

3. Detection of Beta Radiation Detection of beta radiation becomes possible after removal of the cap from the beta window. First, read dose rate with cap in position. If deflection increases after removal of the cap, beta radiation is present. The increase in deflection provides no information about the additional dose rate of beta radiation. If beta radiation is detected with a teletector obtain a RO-2A or RO-3A to determine Beta dose rate.
4. Use of telescopic probe First extend the telescopic probe to the desired length. If sources of (presumed) high activity are to be traced, extend the probe to its maximum length where possible.

CAUTION The telescopic probe must be extended and retracted slowly.

Also avoid rotation of the probe. This prevents damage to the cable inside the probe, n

62HI-OCB-005-0 (s

\.]) O 5 of 12

5. Use of the earphone.

If only a small deflection of the pointer is obtained in the least sensitive range (2 mR/hr) it is advised to connect the earphone to the earphone connection. This produces the G.M.

tube impulses in the form of clicking sounds. At higher dose rates the clicking sound becomes a hissing noise so that the deflection of the meter must be used for orientation.

H. CALIBRATION OF INSTRUMENT

1. Model 6112B CAUTION Do not touch electrical components with the hands as damage to the instrument may result,
a. Check batteries by placing the switch to B. The meter should read in the black area, if not, replace

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batteries and repeat this step.

b. Turn switch to 2 mR/hr.
c. Place probe.in about a 0.5 mR/hr and 1.5 mR/hr gamma field respectively and check the readings. Record the readings on the Instrument Calibration Data Sheet in the As Found column,
d. Turn switch to 50 mR/hr.
e. Repeat step H.l.c. for about 10 mR/hr and 35 mR/hr field respectively.
f. Turn switch to 2 R/hr.
g. Repeat step H.1.c. for about a 0.5 R/hr and 1.5 R/hr field respectively.
h. Turn switch to 50 R/hr.
i. Repeat step H.1.c. for about a 10 R/hr and 35 R/hr field respectively.
j. Turn switch to 1000 R/hr.
k. Repeat step H.l.c. for a 50 R/hr and 200 R/hr field respectively.

62HI-OCB-005-0 0

6 of 12

1. If the instrument reads within + 20% of the actual dose rates in steps H.l.c. thru H.l.k., proceed to step H.l.aa.
m. If the instrument does not read within + 20% of the actual dose rates in each field continue with step H.l.n.
n. Turn switch to 2 mR/hr.
o. Place probe in about a 1.5 mR/hr field and adjust potentiometer P5 until instrument reading equals the actual dose rate i 20%.
p. Turn switch to 50 mR/hr.
q. Repeat step H.1.o. for about a 35 mR/hr field and using potentiometer P4.
r. Turn switch to 2 R/hr.
s. Repeat step H.l.o. for about a 1.5 R/hr field and using

() potentiometer P3.

t. Turn switch to 50 R/hr.
u. Repeat step H.l.o. for about a 35 R/hr field and using potentiometer P6.

.v. Turn switch to 1000 R/hr.

W. Repeat step H.l.o. for about a 50 R/hr field and using potentiometer P2.

x. Repeat step H.l.o. for about a 200 R/hr field and using potentiometer P7.
y. Repeat steps H.l.w. and H.l.x. alternately until instrument reads i 20% at both dose rates.
z. Go to step H.l.b. and repeat the step through H.l'.l.

recording the results in the As Left column.

NOTE Even though the instrument is 1 20% of calibration points every effort should be made to make it read as close as possible to the calibration points.

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c 62HI-OCB-005-0

% ,/

0 7 of 12 aa. If the instrument checks out properly, complete instrument Calibration Data Sheet turn switch OFF, replace the calibration data sticker with a new one bearing this test date on it and when the instrument is due for its next routine quarterly calibration.

bb. If the instrument cannot be calibrated initiate repairs.

cc. Repeat Section H.1. when instrument is repaired.

2. Model 6112D
a. Turn function switch.to B and make sure the battery voltage is over 4 volts. If less than 4 volts, replace batteries before calibration.
b. Turn the function switch to the R/hr position,
c. Place the instrument in the following fields 10 R/hr, 1.50 R/hr, 200 R/hr, and 750 R/hr. Note the readings on Data Sheet 2. If the readings are within + 10% of the

() -

required reading go to step H.2.j., if not continue.

d. Set P9 on its right mechanical stop.

'e. Place instrument in a 10 R/hr field and adjust P5 until 10 R/hr is indicated,

f. Place instrument in a 150 R/hr field and adjust P6 until 150 R/hr is indicated.
g. Place instrument in a 750 R/hr field and adjust P2 until 750 R/hr is indicated,
h. Place instrument in a 200 R/hr field and adjust P9 until 200 R/hr is indicated.
i. Indicate on Data Sheet 2 all readings As Left and which pots were adjusted if any.
j. Switch the function switch to the mR/hr range.
k. Place the instrument in the following fields 10 mR/hr and 750 mR/hr. Note the readings on Data Sheet 2. If the readings are within + 10% of the required value go to step H.2.n., if not continue.

(~s 1. Place the instrument in a 10 mR/hr field and adjust P3

(_ until 10 mR/hr is indicated.

62HI-OCB-005-0 i( 'g

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8 of 12

m. Place the instrument in a 750 mR/hr field and adjust P7 until 750 mR/hr is indicated.
n. Indicate on Data Sheet 2 all readings As Left and which pots were adjusted if any,
o. Switch the function switch to mR and place the instrument in a 10 R/hr field for 36 seconds. The instrument should indicate 100 mR + 10 mR.

~

Record the results on Data Sheet 2.

p. If the instrument checks out properly complete the calibration Data Sheet 2. Replace the calibration sticker with a new one bearing the next quarterly calibration due date.
q. If the instrument will not check out properly and falls out of tolerance repairs must be initiated.

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1 62HI-OCB-005-0 j

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0 9 of 12 l 1

PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-005-0 SERIAL NO: ROO-MPL h0:

RTYPE: G15.14 XREF:

i TOTAL SHEETS: 2 i

FREQUENCY: Quarterly COMPLETED BY:

O V

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

-__._ - -__..._____.__- _ _ - - _ . _ _ _ . . . _ _ _ = - - _ __ _. _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ .

Page 1 of 2 62HI-OCB-005-0 R00 I A FIGURE 1 Page 1 of 2 e r,,,- , , --- ,-,r- - , , - - , - m,--,nn--------,r-------n-- ~-r -,n,,-,-cn.. en ,-,r>--v,,~-,,-,,v , - - - , wr-- -- , - -

62HI-OCB-005-0

- q v 0 1

10 of 12 DATA PACKAGE 1 TELETECTOR MODEL 6112B CALIBRATION DATA SHEET Serial No. MPL No.

Location INSTRUMENT READINGS CALIBRATION ACTUAL AS FOUND AS LEFT SOURCES EXPOSURE RATE 0.5 mR/hr mR/hr mR

. . . . . . . _ _ _ . .. . . _ _ . . . . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .....___.._____.. . ....._.___/hr _...

1.5 mR/hr mR/hr mR/hr 10 mR/hr mR/hr mR

. . . . . . _ . _ _ _ _ _ . . . . . . _ _ _ _ . _ _ . . . _ _ . _ _ _ _ _ _ _ . ., _ _ _ _ _ . . _ _ . _ _ _ _ _ . ,_.__..___/hr .___

35 mR/hr mR/hr mR/hr 0.5 R/hr R/hr R

. . . . . . _ _ _ _ _ . . . ., _ . . . _ _ . . _ . . . . . . . _ _ _ . . . . . . . . . _ _ _ _ . . _ . . _ . _ . . ..._____.../hr ....

. s 1.5 R/hr R/hr R/hr

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. (V . _ - _ . . _ . . . . . . . .,_..__-_-._..

10 R/hr R/hr R/hr 35 R/hr R/hr R/hr 50 R/hr R/hr R/hr 200 R/hr R/hr R/hr

-Maintenance Remarks Next cal due date Cal by Date Page 2 of 2 62HI-OCB-005-0 R00 i

FIGURE 1 Page 2 of 2

62HI-OCB-005-0 O

V O 11 of 12 PROCEDURE DATA PACKAGE 2 DOCUMENT NO: 62HI-OCB-005-0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: Cuarterly COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30RC-OPS-003-0.

s:

ACCEPTABLE d hNACCEPTABLE a

REVIEWED BY:

DATE REVIEWED:

REMARKS:

i

- =_______.__....___.___________________..___=--- _ _.___________

Page 1 of 2

!. 62HI-OCB-005-0 R00 FIGURE 2 Page 1 of 2

62HI-OCB-005-0 e

0 12 of 12 DATA PACKAGE 2 TELETECTOR MODEL 6112D i

CALIBRATION DATA SHEET Serial No. MPL No. -

Location INSTRUMENT READINGS

......--......................===-=-_===.... . . . . . . . . . - - . . .

CALIBRATION ACTUAL AS FOUND AS LEFT SOURCES EXPOSURE RATE

...--.......--...--...--.------....+ .......---_= __ _ - - = - - - - - -

10 mR/hr

--.. . . . . . . . . . . . . . . . . ...-__-- = ....

750 mR/hr 10 R/hr 150 R/hr 200 R/hr

. . . - - . . . . . . - - ...---..------- ----........... .....--.= __ _ _ - _ _ = - =

750 R/hr

-es 10 R/hr for 36 seconds = 100 mr Q ......--...--...--...---........---- __ ==---.........------- -_..

n Maintenance i

Remarks i

Next cal due date l

i Cal by Date I

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Page 2 of 2 62HI-OCB-005-0 R00 r

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J FIGURE 2 Page 2 of 2 I

Y ry, -- - - - r.-~y ,r. ,- - _

e GEORGIA POWER COMPANY

.( HATCH NUCLEAR PLANT 1 OF 14

' .________________________________--__-___-__-_-__PAGE __-__--_--___--____-______

DOCUMENT TYPE:

DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION

.__________________________________________________62HI-OCB_006-0 _______________________

DOCUMENT TITLE: _

COUNT RATE METER PRM-4A OPERATION AND CALIBRA

.______________________________---_____________ TION ____________________________

X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: st/ /9 REV .

APPROVED APPROVED NO. DESCRIPTION DEPT. MGR. EFFECTIVE DATE GENERAL MGR. DATE DATE 0 Replaces HNP-8102 __________f_

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62HI-OCB-006-0

() 0 2 of 14 COUNT RATE METER PRM-4A OPERATION AND CALIBRATION A. PURPOSE To establish a standard technique for operation and calibration of the model PRM-4A rate meter with Geiger-Muller and scintillation type detectors.

B. SAFETY Observe radiation protection procedures. Observe safety rules outlined in Georgia Power Company, SAFETY, Section "O".

C. REFERENCES

1. Count Rate Meter Model PRM-4 Technical Manual.
2. Mini-pulser Procedure 62HI-OCB-018-0.
3. Eberline Checkout Procedures.

D. TEST EQUIPMENT

1. Mini-Pulser with coaxial cable.
2. Gamma Field
3. Electrostatic Voltmeter.

E. DESCRIPTION OF INSTRUMENT

1. The PRM-4A is a portable, battery-operated pulse rate meter which may be used with a wide variety of detectors for measurement of alpha, beta, gamma or neutron radiation.

Normally the HP-177C geiger detector-is used with the instrument, for measurement of gamma radiation and detection of beta radiation. The count rate is read out by the Eberline Lin-Log presentation.

2. This presentation eliminates all scale switching and multiplying factors, yet retains linear increments within each decade. Four decades are covered using two meter movements to yield a scale length of about 1.5 inches per decade, which gives maximum readability and ease of interpretation. Full scale readings for the four decades are 200, 2K, and 20K and 200K counts per minute (CPM) f respectively, calibrated to read the true pulse frequency.

(

62HI-OCB-006-0

' ("T

\~) 0 3 of 14 F. DESCRIPTION OF CONTROLS

1. External Controls,
a. Switch-three position switch-turns instrument OFF, ON or BATT. Spring return from battery check position to ON.

'b. High Voltage Adjustment - controls magnitude of high voltage applied to the detector. Clockwise rotation increases voltage.

2. Internal Contrcls.
a. Calibration Controls - four controls to adjust the meter reading to agree with pulser frequency.
b. Sensitivity Controls - 20 turn variable resistor (R207) mounted on card P202 adjusts sensitivity of detector.

G. OPERATION OF INSTRUMENT

' l. To operate instrument turn the switch to the BATT position.

The left pointer (Black) should read in the green area. If the black pointer does not read in the green area, tag instrument out with a TO SHOP tag stating the reason (s) it was tagged out.

2. Read the Pointer that is on scale. The Black pointer is read up to 2K CPM then it disappears from view and the Red pointer is read. Fluctuation of the pointer is normal and is caused by the random nature of radioactive emissions.
3. When using the earphone a click will be heard for each event counted. Using an SK-1 speaker, only one-half the number of clicks will be heard.

1

4. .When surveying a general area for gamma radiation with the HP-177C Geiger-Muller Detector, the probe should be held i

perpendicular to the source of radiation and at waist level. For beta detection, open the beta window and hold the detector as close as possible to the surface being

surveyed. Now close the beta window and monitor the surface again. When no significant difference is seen in the needle deflection with the beta window open and the beta window I

closed, the radiation should be reported as gamma only.

When significant differences are seen in the needle S deflection with the beta window open and the beta window

(~/

x_ closed, beta radiation is present. For true beta dose rate, obtain an R0-2A or R0-3A.

i i

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62HI-OCB-006-0

(~T

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5. Daily Calibration with Scintillation Detector.
a. Turn switch to the BATT position. The left pointer (Black) should read in the green area. Check BATT Ck.

column of Data Sheet 3 if pointer is in green area.

b. Release switch and it will return to the ON position.
c. Obtain an average background count and record on Data Sheet 3 in counts per minute (C.P.M.).
d. Place a radioactive standard (Cs-137-4) in the center of the bottom detector surface and obtain an average source count. Record on Data Sheet 3 in C.P.M.
e. Subtract the background counts from the source counts and record this source not counts on Data Sheet 3.
f. CalcElate the detector efficiency using the following formula and record on Data Sheet 3, ensuring that the efficiency is greater than or equal to 5%.

O Source Detector Efficiency = Net C.P.M. X 100 Source D.P.M.

H. CALIBRATION OF INSTRUMENT WITH HP-177C HAND PROBE

1. Remove the instrument from the case and silica gel.
2. Remove the High Voltage Supply from instrument. (P-201A).
3. Turn the control switch to BATT position and check battery condition. Black pointer must be in green area, if not replace batteries.
4. Connect Mini-pulser at spring connector (Junction R8 and C2-marked on the instrument). See Figure 1.
5. Set Mini-pulser for negative pulses at' 10 millivolt amplitude and adjust sensitivity control pot (located on P-202) for optimum setting of 10 millivolts.
6. Set the Mini-pulser frequency to 160 cpm, 1,600 cpm, 16,000 cpm, and 160,000 cpm successively and check and record readings on Instrument Calibration Data Sheet 1 in the As Found column.

62HI-OCB-006-0

/)

\/ 0 5 of 14 NOTE Even though the instrument is 1 20% of calibration points every effort should be made to make it read as close as possible to the calibration points.

7. If readings are within i 20% of the Mini-pulser frequency, turn instrument OFF, remove Mini-pulser cable, replace High Voltage supply card and silica gel, place instrument in case and proceed to step H.15.

NOTE Check crossover points on the LIN-LOG scale by using 1,000 CPM and 100,000 CPM input frequencies respectively. Readings.should be 1,000 1 400 CPM and 100,000 + 40,000 CPM. Do not record these results, but if instrument is not within these limits proceed to step H.8.

8. If readings are not within s 20% turn R3 and R5 to maximum clockwise position.

I(_)

9. Adjust High Voltage to 900 valts, see Figure 1, and record the MPL number of the electrostatic voltmeter used in the REMARKS section o,f the Instrument Calibration Data Sheet 1.
10. Set the Mini-pulser frequency to 160 cpm and adjust R2 for proper meter reading. Record reading on Instrument Calibration Data Sheet 1 in the As Left column.
11. Set the Mini-pulser frequency to 1,600 cpm and adjust R3 for proper meter reading. Record reading on Instrument Calibration Data Sheet 1 in the As Left column.
12. Set the Mini-pulser frequency to 16,000 cpm and adjust R4 for proper meter reading. Record reading on Instrument Calibration Data Sheet 1 in the As Left column.
13. Set the Mini-pulser frequency to 160,000 cpm and adjust R5 for. proper meter reading. Record reading on Instrument Calibration Data Sheet 1 in the As Left column.

NOTE Check crossover points on the LIN-LOG scale by using 1,000 CPM and 100,000 CPM input frequencies respectively. Readings should be 1,000 + 400 CPM and

(( s) 100,000 1 40,000 CPM. Do not record these results, but if instrument'i,s not within these limits proceed to step H.8.

62HI-OCB-006-0

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PROCEDURE DATA PACKAGE 2 DOCUMENT NO: 62HI-OCB-006-0 SERIAL NO: R00 MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: Quarterly

() COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCIPTABLE REVIEWED BY:

DATE REVIEWED: ,

REMARKS:

! Page 1 of 2 i

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PROCEDURE DATA PACKAGE 3 DOCUMENT NO: 62HI-OCB-006-0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: Monthly COMPLETED BY:

O DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 62HI-OCB-006-0 R00 0 -

FIGURE 4 Page 1 of 2

, 62HI-OCB-006-0 O o 14 of 14 DATA PACKAGE 3 DATA SHEET 3 PRM-4A DAILY CALIBRATION MONTH 19 SOURCE: SER. NO.

ACTIVITY DPM INST. M.P.L. NO:

DETECTOR EFFICIENCY = SOURCE C.P.M. X 100 SOURCE D.P.M.

DAY DATE BATT BKG. SOURCE SOURCE EFF. REMARKS DONE BY CK. C.P.M. C.P.M. NET.C.P.M.

1 2

3 4

5 6

7 8

9 i -

0

,,1 LO i 14 15 16 17 18 19 20 21 22 l 23 24 25 26 27

.j 28 i 29 30

,' 31 e i DETECTOR EFFICIENCY MUST BE GREATER THAN OR EQUAL TO St.

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GEORGIA POWER COMPANY

( HATCH NUCLEAR PLANT PAGE 1 OF 9 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-007-0 DOCUMENT TITLE:

PORTABLE NEUTRON REM COUNTER PNR-4 OPERATION & CALIBRATION X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE:

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL PGR. DATE DATE 0 Replaces HNP-8103 ggg j gS/fA_

_____ _____s _ _ _ _4_ _6 _/ J

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MGR-0002 Rev. 1

62HI-OCB-007-0 h'

(j- 0 2 of 9 PORTABLE NEUTRON REM COUNTER PNR-4 OPERATION AND CAI.IBRATION

  • A. PURPOSE
  • To establish a standard technique for the operation and calibration of the model PNR-4, Portable Neutron Rem counter.

B. FREQUENCY

1. Semi-annual calibration.
2. Operation as needed.

C. REFERENCES

1. Portable Neutron REM Counter PNR-4 Technical Manual, TDC #0531M
2. Gamma Calibrator Procedure-62HI-OCB-017-0. '
3. Mini Pulser Procedure 62HI-OCB-018-0.

{~ ' _

4. Eberline Checkout Procedures.

-D. SAFETY t

1. Exercise caution to prevent contact with high voltage associated with ion chamber.
2. Observe radiation protection procedures.

t 3. Observe safety rules outlined in Georgia Power Company,

, SAFETY, Section "O". ,

E. TEST-EQUIPMENT 4

i

1. Calibrated neutron field.

4 2.

Gamma calibrator.

3. Mini pulser.
4. Electros'tatic Voltmeter, i'

F. DESCRIPTION OF INSTRUMENT i

1. The PNR-4 is a portable, battery operated instrument for f

() detection and measurement of the dose rate from neutron radiation. The detector is a 9" diameter, cadmium loaded, i

-polyethylene sphere with a BF3 tube in the center. The BF3 3 l tube allows for gamma rejection and responds to fast or slow ~

j neutrons. -

62HI-OCB-007-0 m

(_) 0 3 of 9

2. The fast neutrons have to enter the detector through the polyethylene shield which acts as a moderator, hence, entering the detector as slow neutrons. These slow neutrons react with BF3-releasing alpha particles wnich are counted as. ionization takes place.
3. The battery-pack uses five standard "D" size cells.
4. The detector may be detached from the instrument for remote monitoring or ease of carrying.
5. The dose rate is read out by the Eberline LIN-LOG presentation which eliminates scale switching and multiplying factors yet retains linear increments within each decade. Four decades are covered using two meter movements to yield a scale length of about 1.5 inches per decade, which gives maximum readability and ease of interpretation. Full scale readings of the four decades are 5, 50, 500 and 5000 milli REM per hours.

G. DESCRIPTION OF CONTROLS AND CONNECTORS tQ

\s/ 1. External Controls and Connectors

a. Switch - Three postition switch turns instrument OFF, ON, or BATT check. This switch is equipped with a spring return from Batt check to ON.
b. H.V. Adjust - Controls magnitude of high voltage applied to the detector. Clockwise rotation increases voltage. There are radial marks around the control for reference.
c. Phone - For use of headset, speaker, or external scaler. Mating connector is UG-88/U(BNC).
d. Detector Connector - To connect the instrument to the detector. Mating connector is EIC Model CP-1.
2. Internal Controls
a. Calibration controls - Four controls to adjust the meter reading to agree with the input frequency.
b. Sensitivity Control - 20 turn control mounted on P202 card adjusts the input sensitivity.

H. OPERATION OF INSTRUMENT

./'T '

l. Turn the switch to the BATT position. The left pointer (black) should read in the green area, if not tag the instrument out with a TO SHOP tag stating the reason (s) the instrument.is tagged oat.

62HI-OCB-007-0 m

() 0 4 of 9

2. Read the pointer that is "on scale". The black pointer is read up to 50 mrem /hr. Above 50 mrem /hr the red pointer is read. Watch the pointer long enough to obtain the average reading.
3. When not in use turn the function switch and the SK-1 speaker switch OFF.

I. CALIBRATION OF INSTRUMENT

1. Turn switch to BATT position. If black pointer does not read within the green area, replace-batteries and repeat step I.l.
2. Remove instrument from case and silica gel.
3. Remove the High Voltage supply card (P201A-1000) from the instrument.
4. Set mini-pulser sensitivity to 2.0, millivolts.

'g 5. Connect the mini-pulser input ground to the spring clip (C2) k> on instrument and the high end to (R8) on instrument. See Figure 1. Adjust sensitivity control located on P-202 card, if needed, until input sensitivity is about 2 millivolts.

6. Set mini-pulser to 200 cpm input frequency, record in the AS FOUND column.
7. Repeat step I.6 using 2000, 20,000 and 200,000 cpm respectively and record in the AS FOUND column.

NOTE Check crossover points on the LIN-LOG scale by using 400 CPM and 40,000 CPM input frequencies respectively. Readings should be 8.0 + 3 mrem /Hr and 800.0 + 300 mrem /Hr. Do Not record these results, but if instrument is not within these limits proceed to step I.18.

NOTE Even though the instrument is + 20% of calibration points every effort should be made to make it read as close as possible to the calibration points.

8. If the instrument does not calibrate in the above steps,

, proceed to I.18.

9. If the instrument calibrates through steps I.2-I.7 record the results in the AS LEFT column.

62HI-OCB-007-0 A

A> 0 5 of 9 NOTE 200 cpm = 4.0 + 0.2 MREM /HR 2000 cpm = 40.0 T 2.0 MREM /HR 20,000 cpm = 400.0 7 20.0 MREM /HR 200,000 cpm =

4,000.0 1 200.0 MREM /HR

10. Replace High Voltage supply card (P201A-1000) and silica gel.
11. Place instrument in case.
12. Place detector in a 10 R/hr gamma field turn High Voltage up until approximately 1 MREM /HR is observed.

'13. Remove instrument from gamma field.

' 14 . Adjust High Voltage down 50 volts from the present voltage.

(See Figure 1), using an electrostatic voltmeter. Note the MPL number of electrostatic voltmeter used in the REMARKS section of the' Instrument Calibration: Data Sheet.

NOTE-The high voltage is slow coming down, be certain it has stabilized before locking H.V. adjust nut.

15. Lock High Voltage nut.

~16. Place detector in a 700 MREM /HR fast neutron field successively and check reading. Record in the AS FOUND column.

17. If readings are within + 20% of the true neutron field, turn switch OFF, record readings in the AS LEFT column, complete Instrument Calibration Data Sheet and replace the calibration sticker bearing this test date and when the instrument is due for its next routine semi-annual calibration.
18. Input pulser frequency of 200 cpm adjust R2 until 4.0 MREM /HR'is. observed.

19.- Input pulser frequency of 2000 cpm adjust R3 until 40.0 MREM /HR is observed.

20. Input pulser frequency of 20,000 cpm and adjust R4 until 400.0' MREM /HR is observed.

()- . 21. . Input pulser frequency of 200,000 cpm and adjust R5 until 4,000 MREM /HR is observed.

62HI-OCB-007-0

.O O 6 of 9

22. Repeat steps H.18 through H.21 until no adjustment is needed.

NOTE Check crossover points on the LIN-LOG scale by using 400 CPM and 40,000 CPM' input frequencies respectively. Readings should be 8.0 + 3 mrem /Hr and 800.0 + 300 mrem /Hr. Do Not record these results, but if instrument is not within these limits proceed to step I.18.

23. If instrument now performs properly complete steps I.16 through I.17.

i O

O l _ . . - . . -. . . ... - . - - - - - - .--, - - - - - - - - - - - . - - - - . - - - - - - - - - - -

62HI-OCB-007-0 O o 7 of 9 FIGURE 1 r 3 f 3 LOW SIDE MINI-PULSER ELECTROSTATIC VOLT

fiETER HIGH SIDE E

OUTPUT y J / ( J Ne p#

4 FRONT END

+ C2 O

PNR-4 NOTE Remove Hign Voltage Card (P-201A-1030)

Before Mini-Pulsing HIGH VOLTAGE AD]"ST O

PNR-4"Siini Pulser And II.V. Connecticns"

62HI-OCB-007-0 r

(

0 8 of 9

............- ........-------------- =- _-- _ -------.....-===. _ __

PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-007-0 SERIAL NO: 200-MPL NO: D21-N RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: Semi-Annual

() COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

i DATE REVIEWED:

i REMARKS:

4

+

.......-----------.....== ========.-----=- _..--------.....--....

() 62HI-OCB-007-0 R00 l

FIGURE 2 Page 1 of 2

2 62HI-OCB-007-0 9

7 t

%.) 0 3 af 9 DATA PACKAGE 1 INSTRUMENT CALIBRATION DATA SHEET LOCATION PROCEDURE NO. 62HI-OCB-007-0 INSTRUMENT PUR-4 MPL NO. D21-4 ACTUAL ACUTAL DATE:

CALIB. COUNT DOSE CALIB. BY:

SOURCE RATE RATE AS FOUND A LEFT

______________________._.._._- _..._.._____ ..____.________ ___S _________

MP-1 200 CPM 4 MR/HR MR/HR MR/HR

._-.._......_-_ __._.. ... .= _= _ ._.--_. - _= _ -__.____.....__.....

SN- 2000 CPM 40 MR/HR MR/HR MR

____._..._____________ ____..__...___..___.. .._ _________.. .._/HR________.

20,000 CPM 400 MR/HR MR/HR

..______...___.._.==-- MR/HR 200,000 CPM 4000 MR/HR MR/HR MR/HR

/,')

PuBe N/A 2.75 MR/HR

__-_.._..._-...,=_==_

MR/HR MR/HR

=_-_-__...--..=_ _..

N/A 44 MR/HR MR/HR

__._......._-_............-_ _- MR/HR N/A .77 MR/HR MR/HR MR

......._____.._ _..__...______________... ..._._..________ .../HR ._______.

N/A 701 MR/HR MR/HR MR/HR

__. .._.._..._........._-_....__._....=- _=......__.=. -- - =- __

._...__..-_-_-_..............____....__.___.__. .=-. ----

H.V. POWER SUPPLY SENS. SET (CIRCLE H.V. P.S. SENS)

MAINT. PERFORMED REMARKS Page 2 of 2 62HI-OCB-007-0 ROO

\-

FIGURE 2 Page 2 of 2

.e GEORGIA POWER COMPANY --_-_---__---_-------_--___--

() . HATCH NUCLEAR PLANT DOCUMENT TYPE:

.-PAGE 1 OF 9 DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION DOCUMENT TITLE:

---62HI-OCB-008-0 FAST-SLOW NEUTRON COUNTER MODEL PNC-4 O & CALIBRATION


_--------------------------PERATION X --------------------------------.

SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: A/ /I REV . _-__---____--__-- .

APPROVED APPROVED NO. DESCRIPTION EFFECTIVE DEPT. MGR . DATE GENERAL GR. DATE DATE 0 _--_ _---___--_ ------_--__-

Replaces HNP-8104- kgd - .gyg / g


-- g- -Q. j [L- g g/---.

~_---------_--_-----_-----------___---____-----_--_---___

MGR-0002 Rev. 1 -------_-_-_-----

+

4 e

I

62HI-OCB-008-0

() 0 2 of 9 FAST-SLOW NEUTRON COUNTER MODEL PNC-4 OPERATION AND CALIBRATION A. PURPOSE To establish a standard technique for the operation and calibration of the Model PNC-4, Fest-Slow Neutron Counter.

B. FREQUENCY

1. Semiannual calibration
2. Operation as needed C. REFERENCES
1. Fast-Slow Neutron Counter Model PNC-4 Technical Manual,

-(TDC-0530M)

2. Mini-Pulser Procedure 62HI-OCB-018-0
3. Gamma Calibrator Procedure 62HI-OCB-017-0
4. Eberline Checkout Procedures D. SAFETY
1. Observe safety rules outlined in Georgia Power Company, SAFETY, Section "O".
2. Observe radiation protection procedures.

E. TEST EQUIPMENT

1. Mini-pulser Model MP-1
2. Calibrated neutron source

-3. Gamma calibrator

4. Electrostatic Voltmeter F. DESCRIPTION OF INSTRUMENT
1. The PNC-4 is a portable, battery operated instrument used for detection and measurement of fast or slow neutron radiation. It has a BF3 detector with cadmium shield and

(]) moderator. The count rate is read out by the Eberline Lin-Log presentation.

62HI-OCB-006-0 m

0 k_)

3 of 9

2. The detector tube is sensitive to slow neutrons directly. To detect fast neutrons it must be inserted in the moderator.

Here the cadmium shield blocks the slow neutrons and allows the fast neutrons to pass.

3. The fast neutrons are then slowed down in the paraffin and enter the detector as slow neutrons. These slow neutrons react with the BF3 to release alpha particles which cause the ionization that is detected and read out as counts per

' minute.

4. Eberline LIN-LOG presentation eliminates all scale switching and multiplying factors, yet retains linear increments within each decade. Four decades are covered using two meter movements, which gives maximum readability and ease of interpretation. Full scale readings for the four decades are 500, SK, 50K and 500K counts per minute (CPM) respectively. Calibration is such that the meter reads true frequency.
5. The battery pack uses five standard "D" size cells.

\/ G. DESCRIPTION OF CONTROLS

1. External Controls
a. Switch - Turns instrument ON, OFF or BATT. Switch spring returns to ON position from BATT position.
b. H.V. Adjust - Controls magnitude of high voltage applied to the detector. Clockwise rotation increases voltage. (Ideal voltage 1350-1650).
2. Internal Controls
a. Sensitivity control - 20 turn control mounted on P-202 card adjusts the input sensitivity.
b. Calibration Controls - Four controls to adjust the meter reading to agree with input frequency.

H. OPERATION OF INSTRUMENT

1. Turn the switch to the BATT position. The left pointer (black) should read in the green area. If it does not, tag the instrument out with a To shop tag. Release the switch and it will return to the ON Position.

() 2. Interpretation of Indication

62HI-OCB-008-0 0

4 of 9

a. Meter Indication: Read the pointer that is "on scale."

The black pointer is read up to 5000 cpm, then it disappears and the red pointer is read. The pointer may fluctuate so observe it long enough to obtain the average reading.

b. Phone: Using an EIC Model.Sk-1 speaker, only 1/2 the number of events counted will be heard.
3. Monitoring procedures depend greatly on the situation at hand, therefore, no specifics will be given. The detector, when out of the moderator, detects slow neutrons. When it is in the moderator it detects fast neutrons.
4. When instrument is not in use, turn switch OFF and SK-1 speaker switch OFF.

I. CALIBRATION OF INSTRUMENT

1. Check batteries for proper condition, replace if necessary.

,q 2. Remove the instrument from the case and remove silica gel.

LJ

3. Remove the High voltage Supply card (P-201A-1000) from the instrument.
4. Set mini-pulser to 2.0 1 0.5 millivolts.
5. Connect the mini-pulser input ground to the spring clip (C2) on instrument and the high end to (R8) on instrument. See Figure 1. Adjust sensitivity control located on P-202 card, if needed, until input sensitivity is about 2.0 millivolts.
6. Set the mini-pulser frequency to 400 cpm, 4000 cpm, 40,000 cpm and 400,000 cpm successively, and check and record reading in the AS FOUND column of Data Package 1 (Data Sheet 1).

NOTE Check crossover points on the LIN-LOG scale by using 1,000 CPM and 100,000 CPM input frequencies respectively. Readings should be 1,000 1 400 CPM and 100,000 + 40,000 CPM. Do not record these results, but if instrument is not within these limits proceed to step I.16.

7. If readings are within i 20% of the mini-pulser frequency, turn instrument OFF,' record the results in the AS LEFT

{N s> column of Data Package 1 (Data Sheet 1), remove mini-pulser cables, replace High Voltage card (P-201A-1000), replace silica gel and place instrument in case and proceed to step I.9.

62HI-OCB-008-0 0

0 5 of 9 NOTE Even though the instrument is + 20% of calibration points every effort should be made to make it read as close as possible to the calibration point.

8.

If readings are not within + 20% of the mini-pulser frequency, proceed to step I.16, in a gamma field of 10R/hr, adjust High

9. Place Voltage instrument upward until 100 cpm is observed.
10. Remove instrument from gamma field and adjust High Volt

' (See Figure 1) Note the MPL number of the electrostatic voltmeter 1).

nut.

used in the. REMARKS section of Data Package 1 (Data Sheet in 10R/hr gamma field, no counts should be

11. Place.instrumentIf counts are observed, repeat section I.9 and observed.

I.10 until no adjustment is necessary.

20 12.

Place instrument in a fast neutron field (75,000 and verifycpm;its at

(~5 cm from Pube source will be 75,000 cpm)in a slow neutron field (10,000

\

response. Place instrument cpm; at 30 cm from Pube source in 4 inches of paraffin wi be 10,000 cpm)

FOUND column of Data Package 1 (Data Sheet 1).

NOTE CONVERSION FACTORS __

FAST NEUTRONS 75 K cpm is equal ro 701 mrem /hr= 9.35 mrem /1000 cpm CONVERSION FACTORS _

SLOW NEUTRONS 10 K cpm is equal to 1.95 mrem /hr= .20 mrem /1000 cpm

13. Assure conversion factors noted above are recorded on body of the instrument.

i

14. If conversion

+ 50% factors of the initial factors,for fast turn theand slow neutrons instrument OFF and are with n complete Data Package 1 (Data Sheet 1). Replace calibration 7- sticker with a new one bearing this testsemiannual routine date and when cali-the instrument is due for its next bration.

15. If readings are not within 50% of the initial factors, proceed to step I.16.

()

r

16. Turn R3 and R5 MAXIMUM CLOCKWISE position.

62HI-OCB-008-0 r-()y 0 6 of 9

17. Set the mini-pulser frequency to 400 cpm and adjust R2 for proper meter reading. Record reading on Data Package 1 (Data Sheet 1) in the AS LEFT column.
18. Set the mini-pulser frequency to 4000 cpm and adjust R3 for proper meter reading. Record reading on Data Package 1 (Data Sheet 1) in the AS LEFT column.
19. Set mini-pulser frequency to 40,000 cpm and adjust R4 for

' proper meter reading. Record in the AS LEFT column of Data Package 1 (Data Sheet 1).

20. Set mini-pulser frequency to 400,000 cpm and adjust R5 for proper meter reading. Record in the AS LEFT column of Data Package 1 (Data Sheet 1).

NOTE Check crossover points on the LIN-LOG scale by using 1,000 CPM and 100,000 CPM input frequencies respectively. Readings should be 1,000 + 400 CPM

/~ and 100,000 + 40,000 CPM. Do not record these

(-)N -

results, but if instrument is not within these limits proceed to step I.16.

21. If the instrument can be calibrated in steps I.17 thru I.20, go to step I.9.
22. If the instrument cannot be calibrated, initiate repairs.
23. Repeat Section I when instrument is repaired.

62HI-OCB-008-0 (3 *

,Q 0 7 of 9

. FIGURE 1 r 3 F 3 LOW SIDE MINT-PULSER ELECTROSTATIC VOLT METER HIGH SIDE C**

0 'U k u J ,e# J

$'s

% p+

  • treg

'8+ g FRONT END Y

^^

O NOTE Remove Hi0n Voltage Card (P-201A-1000)

Before Mint-Fulsing.

PflC-4 HIGH VOLTAGE ADJUST O"

O PNC 4 "Hini Pulser And H.V. Connections"

- 62HI-OCB-008-0 lt-x_/

0 8 of 9

__________.. .._____.... =. .._.._____ .___________..__________ __ .

PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-008-0 SERIAL NO: ROO-MPL NO: D21-N RTYPE: G15.14 XREF:

TOTAL SHEETS: 2

~

FREQUENCY: Semiannually COMPLETED BY:

.O DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA'IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 62HI-OCB-008-0 R00 FIGURE 2 Page 1 Of 2

62HI-OCB-008-0 l

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  1. DATA PACKAGE 1 DATA SHEET 1 INSTRUMENT PNC-4 MPL NUMBER
  • i LOCATION INSTRUMENT READINGS '

ACTUAL ACTUAL DATE:

CALIB. COUNT DOSE CALIB. BY:

SOURCE RATE RATE AS FOUND AS LEFT l MP-1 400 CPM N/A CPM CPM a

'SN- 4000 CPM N/A CPM CPM 40000 CPM N/A CPM CPM 400000 CPM N/A CPM CPM nf 75000 CPM 701 mR/hr CPM CPM l *s ns 10000 CPM 1.95 mR/hr CPM CPM 1,

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H.V., Power Supply, Sens. Set (Circle) H.V., P.S., Sens.

REMARKS i

i MAINT. PERFORMED:

1 9 Page 2 of 2 62HI-OCB-008-0 R00 O

FIGURE 2 4, Page 2 of 2 .

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t GEORGIA POWER COMPANY

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HATCH NUCLEAR PLANT PAGE 1 OF 10 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-009-0 DOCUMENT TITLE:

GAS PROPORTIONAL ALPHA. COUNTER PAC-4G OPERATION & CALIBRATION X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE:

REV. APPROVED APPROVED NO. DESCRIPTION EFFECTIVE DEPT. MGR. DATE GENERAL MGR. DATE DATE

_g_ _ _ _ _ _ _ _ _h__g 0 Replaces HNP-8105

_____ _____________________ yg ,,

_ __ ____ __ ______ __ _4_ _4_f ____

l MGR-0002 Rev. 1 e

62HI-OCB-009-0

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(T/ 0 2 of 10 GAS PROPORTIONAL ALPHA COUNTER PAC-4G OPERATION AND CALIBRATION A. PURPOSE To establish a standard technique for the operation and calibration of the Gas Proportional Alpha Counter, Model PAC-4G.

B. FREQUENCY

1. Operation of counter: as needed.
2. Calibration of counter: quarterly.

C. REFERENCE 1.. Gas Proportional Alpha Counter Model PAC-4G technical manual. (TDC# 0527M)

2. Eberline Checkout Procedures, D. SAFETY r-}

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1. Observe safety rules outlined in Georgia Power Company, SAFETY, Section "O".
2. Observe radiation protection procedures.

E. TEST EQUIPMENT

1. Gamma Calibrator.
2. Electrostatic Voltmeter.
3. Alpha Calibration Source Set Model S94-4.
4. Eberline Mini-Pulser Model MP-1.

F. DESCRIPTION OF INSTRUMENT

1. The PAC-4G is a portable battery operated instrument used for the detection and measurement of alpha radiation. It has a gas flow proportional type detector,.and the count rate is read out by the Eberline LIN-LOG presentation.
2. Eberline LIN-LOG presentation eliminates all scale switching and multiplying factors, yet retains linear increments within each decade. Four decades are covered using two

(]) meter movements to yield a scale length of about 1.5 inches per decade, which gives maximum readability and ease of interpretation, i

- 62HI-OCB-009-0 0

3 of 10

3. Full scale reading for the four decades are 500, 5K, 50K and 500K counts per minute (CPM) respectively.
4. The battery pack uses five standard "D" size cells.

G. DESCRIPTION OF CONTROLS

1. External controls,
a. Three Position Switch - Turns the instrument ON, OFF or BATT. Switch spring returns to ON from BATT position.
b. Gas Flow Control - This three position control combines the functions of turning the gas on and selecting the proper gas flow. When the control is turned to the OFF position, there is no gas flow. When the control is in the Flush position, there is a high gas flow to flush air out of the probe preparatory for use. The intermediate position, OPERATE gives a low-flow rate for maintaining a proper gaseous atmosphere in the probe for continuous instrument operation.

' ') c. H.V. Adjust - Controls magnitude of high voltage applied to the detector. Clockwise rotation increases voltage.

2. Internal controls.
a. Calibration Controls - Four controls to adjust the meter reading to agree with alpha calibration sources.
b. Sensitivity Control - 20 turn control mounted on P-202 card adjusts the input sensitivity.
c. Gas Pressure Control - Screw adjustment which controls gas pressure at regulator output.
d. Gas Flow Adjustments - Two needle valves which adjust the flow for the two positions of the Gas Flow Control.

H. OPERATION OF INSTRUMENT

1. Ensure that the calibration sticker indicates a current calibration.
2. Place the Gas Flow Control in the FLUSH position. Turn the Control Switch to the BATT position. The left pointer r~s (Black) should read in the green area. Release the switch

(_) and it will return to ON. After approximately two (2) minutes of flushing time, place the Gas Flow Control to OPERATE.

w

62HI-OCB-009-0 0

4 of 10

3. Operation check.
a. Remove the face protector from the detector.

CAUTION The detector face is very thin and easily punctured. Do not set the detector on any sharp objects,

b. Place the check source.against the face. The instrument should read the approximate value of the source + 20%.
4. Gas flow check. <

Gas flow is essential to proper instrument operation and may be checked by flame height at-the probe exhaust. Ventilate the area around the probe if it has been stationary, and light the exhaust.. Flame height should be approximately one inch when the gas control is in the OPERATE position.

O 5. Interpretation of indications.

i

a. Meter indication - Read the pointer that is on scale.

The black pointer is read up to SK CPM,'above which it disappears from view and the red pointer is read. The fluctuation of the pointer is normal and is caused by the random nature of radioactive decay. Watch the pointer long enough to obtain the average reading,

b. Phone - Using an earphone a click will be heard for each event counted. With a speaker, only one half-the number of counts will be heard. This number is less

!. than the meter reading because the detector efficiency is less than 100% of 2 pi.

6. Monitoring.

Monitoring procedures-depend greatly on the situation at hand. Therefore, no specifics will be given. In general,

  • the detector must be held within 1/4 inch of the surface being checked. Holding it in contact with the surface is F the most consistent, but this has the risk of puncturing or >

contaminating the face. Both the battery check and the check source should be used periodically to assure proper

operation.

4

):

i

62HI-OCB-009-0 0

5 of 10

7. Changing gas bottle.

The gas bottle should be changed in a well ventilated place away from fires because of the possibility of gas leakage when the bottle is removed. To change, remove the lower case. Unscrew the gas bottle from the regulator, turning counterclockwise. Replace with a new bottle by inserting the threaded portion into the regulator. Push the bottle towards the regulator and turn clockwise. When the threads engage screw the bottle in hand tight. The instrument uses Liquid Propane, 6 oz. bottle.

I. CALIBRATION OF INSTRUMENT

1. Turn control switch to BATT and ensure batteries are in good condition.
2. Place the Gas Flow Knob to FLUSH. Flush for two minutes.
3. Place the Gas Flow Knob to OPERATE. Light the exhaust gas.

The flame height should be about 1 inch. If it is not, go

(]} to step I.6.

4. Check calibration with the Elc Model S94-4 Source Set. Four checks will be made - one for each decade. Record readings in the As Found Column of Instrument Calibration Data Sheet. If the Meter readings do not agree with the values printed on the sources + 20%, proceed to step H.6.

NOTE Even though the instrument is + 20% of calibration points every effort should be made to make it read as close as possible to the calibration point.

5. If the meter checks out within + 20% of the source values, turn instrument off, complete Instrument Calibration Data Sheet and replace the calibration sticker with a new one bearing the test date and when the instrument is due for its next routine quarterly calibration.
6. Gas flow adjustment,
a. With the Gas Flow Knob in the OPERATE position, light the exhaust gas and adjust needle valve 1, which is on the opposite side of the Regulator from the Flow Control Knob, until the exhaust gas flame reaches 1 O inch in length.

62HI-OCB-009-0 O

V O 6 of 10

b. With the Gas Flow Knob in the FLUSH position, light the exhaust gas and adjust Needle Valve 2, which is on the same side of the Pressure Regulator as the Flow Control Valve, until the flame reaches 2 inches in length.
7. Sensitivity adjustment.
a. Remove instrument from case and remove high voltage supply card (P-201A - 1240). Connect Mini-Pulser at spring connector (junction R8 and C2, see Figure 1).
b. Set Mini-Pulser for negative pulses at 2 millivolt amplitude, and adjust sensitivity control located on P-202 card until the input sensitivity is about 2 millivolts.
c. Place high voltage supply card back in instrument and place instrument back in its case.
8. High Voltage adjustment.

rS a. Turn the H.V. Adjust Control, which is on the front

(,/ cover, counterclockwise to the STOP position.

b. Expose the probe to about a 1R/hr gamma field.
c. Increase the voltage until the instrument starts counting.
d. Remove probe from gamma field and take instrument out of its case. Connect an electrostatic voltmeter to spring connector (see Figure 1). Then decrease the voltage about 100 volts by turning the H.V. adjust.

Record M.P.L. number of electrostatic voltmeter in the REMARKS section of Instrument Calibration Data Sheet.

9. Calibration with the EIC Model S94-4 source set,
a. Remove the instrument from its case,
b. Connect the cable to the high voltage connector using a shielded clip lead,
c. Turn R3 and R5 clockwise to maximum position.
d. Place the Detector on source A of the Model S94-4 Source set and adjust R2 for the proper reading.
e. Place the Detector on source B of the Source Set and f~}

adjust R3 for the proper reading.

62HI-OCB-009-0

( 0 7 of 10

f. Place the Detector on source C of the Source set and adjust R4 for'the proper reading.
g. Place the Detector on source D of the Source Set and adjust R5 for.the proper reading.
h. Repeat steps I.9.d. through I.9.g. until no adjustments are necessary. Record final readings in the As Left Column of Instrument Calibration Data Sheet.

-1. Replace instrument in case and perform step I.5.

10 If the instrument cannot be calibrated, have repaired.

11. Repeat Section I. When instrument is repaired.

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l 62HI-OCB-009-0 1

0 0 8 of 10 FIGURE 1 r -$

ELECTRCSTATIC VOLT METER

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SPRING CLIP HIGH YOLTAGE /

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62HI-OCB-009-0 0

9 of 10 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-009-0 5

SERIAL NO: ROO-MPL NO:

l RTYPE: G15.14 l

XREF:

TOTAL SHEETS: 2 FREQUENCY: Quarterly

() COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS

AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE i

REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 g

62HI-OCB-009-0 R00 FIGURE 2 Page 1 of 2 i

a

62HI-OCB-009-0

) 0 10 of 10 DATA PACKAGE 1 INSTRUMENT CALIBRATION DATA SHEET LOCATION INSTRUMENT PAC-4G MPL NO.

ACTUAL ACTUAL DATE:

CALIB. COUNT DOSE CALIB. BY:

SOURCE RATE RATE AS FOUND AS LEFT Pu-239 280 CPM N/A CPM CPM

$94-4 4,190 CPM N/A CPM CPM 40,710 CPM N/A CPM CPM 284,800 CPM N/A CPM CPM O

1

{ H.V. POWER SUPPLY SENS. SET (CIRCLE) HV. PS. SENS MAINT. PERFORMED

. REMARKC i

l Page 2 of 2 62HI-OCB-009-0 R00 l

i FIGURE 2 ,

i Page 2 of 2

t

^s ,

GEORGIA FOWER COMPANY sa  ! HATCH NUCLEAR PLANT PAGE 1 OF 10 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 02HI-OCB-010-0 DOCUMENT TITLE:

MINI-SCALER MODEL MS-2 X SAFETY RELATED NON-SAFETY RELATED EXPlRATION DATE: /d /h REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE


_--________-_-_-_-_-- -_--___--- /

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0 2 of 10 MINI-SCALER MODEL MS-2 A. PURPOSE To ensure that the instrument is calibrated properly and to provide operation guides for the user.

B. FREQUENCY

1. Daily Chi Square check
2. Quarterly Calibration C. REFERENCE Mini-Scaler Model MS-2 technical manual. TDC 60524M D. SAFETY Observe radiation protection procedures.

() E. DESCRIPTION OF INSTRUMENT The Mini-scaler system consists of a variable high voltage supply, charge sensitive input amplifier, single channel pulse height analyzer, six decade scaler,'and timer. It is aesigned for practically any scintillation, Geiger Mueller, or proportional detector and can be powered by either 110 VAC or 7.5-14 VDC.

F. DESCRIPTION OF CONTROLS AND CONNECTORS

1. External

, a. Detector - Connection to detector MHV series coaxial, t

b. H.V. Adjust - Ten turn calibrated dial for setting and changing high voltage.
c. Threshold - Ten turn calibrated dial for setting and changing baseline sensitivity.
d. Window - Ten turn calibrated dial for setting and changing range of pulse heights to be counted.
e. In - Out Switch - Switch to select gross counting (OUT) or PHA (IN).

'k ' f. Test - Switch to insert test signal into scaler.

f 62HI-OCB-010-0 O

V 0 3 of 10

g. Timed - Stop - Man - Switch to select counting mode,
h. Reset - Start Switch to reset all appropriate circuitry to zero and start a counting sequence.
i. Count Time In Minutes - Switches to select desired counting time
j. Power - Switch to supply power to instrument. (Rear Panel)
k. ' Battery - Connector for plugging in external battery.

(Rear Panel)

2. Internal
a. Gain (Amplifier Board) - Control for adjusting gain of amplifier.
b. Time (Timer Board)- Control to calibrate time base when operating with external battery t( )
c. Rate Meter Calibration (Rate Meter Board)-Controls to calibrate meter reading G. OPERATION OF INSTRUMENT NOTE Two MS-2 instruments will normally be connected to an HP210 probe (G.M.) mounted on a shielded sample holder.

The other MS-2 will be connected to a gas flow propor-tional detector mounted in a sample holder and will be calibrated for alpha counting.

1. Be sure that the instrument calibration is current.
2. Turn Power Switch to ON.
3. Position Timed - Stop - Man switch to counting mode desired.
4. Position Count Time In Minutes switches to counting time desired.
5. . Press Reset-Start switch and release. Instrument should begin counting.

62HI-OCB-010-0

[^}

s' 0

4 of 10

6. Daily Calibration
a. Set Test Switch to ON.
b. Set Timed-Stop-Man. Switch to MAN. Units should begin to count. Record results in Man. CK column of Data Sheet 1.
c. Set Timed-Stop-Man switch to TIMED.
d. Set Count Time In Minutes switches to 1 and Xl. Press Start-Reset switch and release. Units should stop counting after 60 seconds, registering 3580-3600 counts. Record on Data Sheet 1.
e. Turn Test switch to OFF.
f. Perform a 10 minute background count and record the background counts in C.P.M. on Data Sheet 1.
g. Place a radioactive standard in position for counting

.() and count for 5 minutes.

1 in C.P.M.

Record results on Data Sheet NOTE For instruments with Geiger-Mueller detector use Tc-99m beta source (4i 10% dpm) centered in a S.S. planchet.

For instrument with gas flow proportional detector, a PuT8 alpha source (mi 104 dpm) centered in a S.S.

planchet and placed on top counting shelf,

h. The reading should be within 1 3 sigma of the source's known count rate.

NOTE It count rate is greater than or less than 1 3 sigma for three consecutive counts, then a new Chi-Square Test must be performed. Record the results by entering "YES" or "NO" in the 1 3 sigma column of Data Package 1 (Data Sheet 1).

i. Calculate the counter efficiency and record on Data Sheet 1.

Net C.P.M.

{ efficiency = D.P.M. X 100

62HI-OCB-010-0

%_) 0 5 of 10 H. CALIBRATION OF INSTRUMENT

1. GM Detectors
a. Adjust H.V. Adjust to operation voltage of tne oetector being used. Refer to technical manual Figure 2-3.

CAUTION Do not over-voltage the GM tube. (900 volts)

b. Connect detector.
c. Set Threshold to 10.00.
d. Set Window In-Out switch to OUT.
e. Push Start-Reset switch and expose detector to a check source.
2. Scintillation detectors - gross counting smears.

7_

~

a. Connect detector.
b. Set Threshold to 5.00 and Window In-out Switch to OUT.
c. With the detector exposed to a radiation source of the isotope-to be counted, run a plateau of counts vs. High Voltage setting.(See Figure 2-4 of technical manual).
d. Remove radiation source and repeat step H.2.c for background.
e. Set H.V. Adjust to a point on the plateau within the

. first one third of the slope of the plateau.

3. Scintillation detectors - Pulse height analysis,
a. Turn H.V. Adjust to 0.00 and Window In-Out switch to IN.
b. Expose-detector to a gamma field of known energy.
c. Adjust Threshold to the desired k' nob reading for the energy being used.
d. Set Window to 25% of Threshold.

g- e. Plot a curve of counts vs. high voltage. (See Figure t 2-5 of technical manual).

62HI-OCB-010-0 i

V 0 6 of 10

f. Adjust H.V. Adjust for the peak reading.
g. To optimize window width, plot several curves of counts vs. threshold with wider and narrower windows and choose the one best suited. (See Figure 2-6 of technical manual). Adjust H.V. Adjust to obtain the maximum reading at the Threshold dial reading selected.
4. Proportional Detectors
a. Set the Threshold control to 2.50 and the Window In-out to OUT.
b. Plot a curve of counts vs high voltage with the detector exposed to an alpha source (Pu-239)(See Figure 2-7 of technical manual).
c. Remove the source from the instrument detector and plot a background curve. (See Figure 2-7 of technical manual).

n

(,) d. Adjust H.V. Adjust for a point on the plateau within the first one third of the slope of the plateau. (See Figure 2-7 of technical manual).

5. Chi-square Test (Quarterly test)
a. Perform a one minute background count and record the background counts in BKG CPM on Data Sheet 2.
b. Place a radioactive standard in position for counting.

Use the same standards which will be used in the daily calibration.

c. Count the source for one minute duration twenty times and record net counts on Data Sheet 2.
d. Calculate chi-square. If results are between 7 and 35, the instrument should be functioning properly.
e. Calculate 1Cf , 2 CT, and 3Cf error.

NOTE The computer program CHI Square may be used to determine Chi-Square data.

b

62HI-OCB-010-0

(::)

7 Of 10 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-010-0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 XREF: ,

TOTAL SHEETS: 2 FREQUENCY: Monthly COMPLETED BY:

O DATE COMPLETEU:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-CPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

i REMARKS:

t i

Page 1 of 2 62HI-OCB-010-0 R00 FIGURE 1 Page 1 of 2 a.. _. __. . - - -- - -

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62HI-0CB-010-0 r% 0 V

9 of 10 PROCEDURE DATA PACKAGE 2 DOCUMENT NO: 62HI-OCB-010-0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: Quarterly 3 COMPLETED BY:

)

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

l l

l l REMARKS:

[ ________ __.______..____________..__..__..____________________________

. Page 1 of 2 l

62HI-OCB-010-0 R00

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l l FIGURE 2 l Page 1 of 2 i

62HI-OCB-010-0 O o 10 of 10 DATA SHEET 2 CHI-SQUARE TEST DATE: MS-2 M.P.L. 30. D21-N SOURCE:

COUNT TIME / MIN SOURCE SER. NO.

H.T. SETTING BEG. CPM (n-nf

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17 18 19 20 SUM (E) l E eI ne B+g e 22 (Chi-3quare) e I (n-fi)2 a B E + 2t e R E + 3T e Z(n-a) m et be sero 22 aust be between 7 & 35 0 e +W e 3ae 20 e ~ 5-20e 30 e 5-3oe COMPLETED S!s DATE

FIGURE 2 Page 2 of 2

fg GEORGIA POWER COMPANY I

v J HATCH NUCLEAR PLANT PAGE 1 OF 7 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB Oll-0 h

DOCUMENT TITLE:

GEICER COUNTER E 400 OPERATION & CALIBRATION X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: /Y /9 REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR., DATE GENERAL M R. DATE DATE 0 Replaces HNP-8107 gdj gy, g

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2 62HI-OCB-011-0

[vb o 2 of 7 GEIGER COUNTER E-400 OPERATION AND CALIBRATION A. PURPOSE To establish a standard technique for operation and calibration of the model E-400 geiger counter.

B. FREQUENCY

1. Operation of counters: As needed
2. Calibration of counters: Quarterly C. REFERENCES
1. Geiger Counter Model E400 Technical Manual TDC #0540M
2. Eberline checkout procedures D. SAFETY

) 2. Using the calculated dose rate and-R-Chamber distance from l source from Data Sheet 1, plot a graph with dose rate on the X-axis and distance in centimeters on the Y-axis.

3. Obtain dose rate verses distance from source (in centimeters) information from this graph for use in 1

instrumentation calibration points.

-H. CALIBRATION I

1. This instrument is calibrated and certified by the Victoreen i

Instrument Company as being traceable to the National Bureau l

of Standards and will be returned at eighteen month intervals-for certification.

2. After return of the instrument from Victoreep vith a new calibration certification,' replace the calibration sticker i, -

with a new one bearing the calibration date and when tre i next routine 18 month calibration is due.

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CHAMBER SERIAL NO. DISCHARGE CHECK REFERENCE POINT l 131-100R X2732 38 to 46 130-0.25R X2732 0.105 to 0.125 552-2.5R X2732 1.8 to 2.0 621-100R X2732 38 to 46 l 188-025R 11798 .016 to .017 553-25R 11297 9.5 to 11.5 i

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62HI-OCB-014-0

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PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-014-0 SERIAL NO: ROO-MPL NO: G15.14 RTYPE: 2 XREF: AS NEEDED TOTAL SHEETS:

FREQUENCY:

p COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

.---...====---- ..= ----- - _ = _ _ - . - - - - - - . . _ - - _ _ _ - - - - . . . - - - - .

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GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PAGE 1 OF 9 DOCUMENT TYPE:

DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-015-

-__--_-_----___-_---_----_____--_---_--__--______----____-_---_0________-_-- .

DOCUMENT TITLE:

ARM PORTABLE CALIBRATION UNIT X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: /

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL GR. DATE DATE

-___----_-_-____-_-_- -_____-_ 4

_77 __----_____---______--

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1. MGR-0002 Rev. 1 6

s 62HI-OCB-015-0

-O o 2 of 9 ARM PORTABLE CALIBRATION UNIT -

A. , PURPOSE To ensure that the instruments are operated properly.

B. REFERENCES

1. S-17978 GEK-865C Portable Calibration Unit for Area Radiation Monitor
2. '60AC-HPX-007-0, 62RP-RAD-010-0
3. 40AC-ENG-007-0, 60AC-HPX-007-0, 62RP-RAD-010-0, 62RP-RAD-035-0
4. 60AC-HPX-004-0, 60AC-HPX-009-0, 62RP-RAD-006-0 C. SAFETY Observe radiation protection procedures. -

() D. DESCRIPTION OF UNIT The ARM. portable calibration units provide a graded series of

-radiation rates which are used for calibration vf area radiation monitors on plant site. When a sensor and converter'of an ARM is inserted in-the cavity a dose rate can be applied to it by setting.the source and shield control levers to an appropriate position. Five discrete dose rates can be set in this manner. A chart furnished with the units show the calibrated dose rates for each position of the levers at the date on the chart. Since the

source, Cobalt 60, has a half life of 5.25 years,. allowance should be made for decay of the source.

NOTE

A RWP is required for using this source.

I E.- DESCRIPTION OF CONTROLS i

1. Source control lever - positions source in or out.

. 2. Shield control levers - positions shields in or out.

i 1

9

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62HI-OCB-015-0

.(:) o l 3 of 9 F. OPERATION OF UNIT NOTE For reference-the calibration charts furnished with the units are shown in Figure 1 and in Figure 2. Two units are available for use serial number 6554071 and 6339537. Charts are furnished for both.

CAUTION This units contain approximately 200 microcuries of' Cobalt 60. Refer to 60AC-HPX-007-0, 62RP-RAD-010-0, s

Handling of USNRC Licensed Radioactive Material, for safety precautions to be taken when using the ARM calibration unit. . Exercise care in handling the unit to minimize radiation exposure.

1. Insert th'e sensor and converter unit'to be calibrated-into the cavity. -

'(} 2. Determine the corrected dose rate for the lever positions desired by using Figure 1, graphs 1 and 2; or Figure 2, graphs 3 and 4.

3. If the sensor and converter is supplied with a bug source add the bug source radiation level to the level determined in step F.2 and use this value for ARM calibration.
4. Repeat steps F.1 - F.3 as often as necessary to complete the ARM calibration.

5 When the ARM calibration is complete-set.the source control to OUT and both shield controls to IN to provide _ maximum shielding of the source. Install top cover and return unit to area which it is assigned and complete Form 1 of 60AC-HPX-007-0, 62RP-RAD-010-0.

NOTE 4 Sources are : controlled by a Laboratory Foreman ar.d are stored 'at designated areas. All sources used outside the laboratory will require the completion of 60AC-HPX-007-0, 62RP-RAD-010-0, Form.1 by '

the person requesting the source.

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62HI-OCB-015-0  !

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l 4 of 9 FIGURE 1 CALIBRATTON DATE 5-22-73 SERIAL NUMBER 65b4071 SOURCE & GROUPS GROUTS GROUPS SHIELD 11&l2 14,16 13515 POSITIONS &l7 SOURCE IN 354.3 403 0 403.0 SH 1 OUT ~

SH 2 OUT  ::R/HR MR/uP MR/HR SOURCE OUT SH 1 IN 9.9 9.0 9.0 SH 2 IN MR/HR MR/HR MR/UR e SOURCE OUT 24.8 23.5 22.5 SII 1 IN SH 2 OUT MR/HR MR/HR MR/HR SOURCE OUT 34.9 32.0 31.2 SH 1 OUT .

iS:: 2 TN MR/HR MR/HR MR/HR 1 62.3 76.5 77.0 SH 1 OUT SH 2 OUT MR/HR MR/HR MR/HR NOTE: CALIBRATED WITH A G.E.

STANDARD GN!MA COSALT-60

  • SOURCE IN SAN JOSE.

CAUTION:- ATTER USE, PUSH BOTH SHIELDS & SOURCE TO LOCK POSITION.

62HI-OCB-015-0 0

G(3 5 of 9 GRAPH #1 4 DCCRY CURVCS F* C R G13 A.R.M. UNITS ( 1OCO-1OCp MR/HR3 PORTABLE CRLIBRATION UNIT DCCRY CURVC SOURCCs350 uCf Co-GO CRLIBRRTCC a 5 /2 2/W 73 UNIT SCRIAL NC. G554071

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,:O,a 7 of 9 FIGURE 2 CALIBRATION DATE 8-9-77 _

SERIAL NUMBER 6339537 SOURCE & GROUPS GROUPS GROUPS

. SHIELDS 11 & 12 13 & 15 14, 16 POSITIONS & 17 SOURCE IN 290.6 303.5 305.9 SH 1 OUT MR/HR MR/HR MR/HR SH 2 OUT SOURCE OUT 6.97 6.32 6.24 SH 1 IN MR/HR MR/HR MR/HR SH 2 IN '

({]) SOURCE OUT 17.47 15.56 15.35 SH 1 IN MR/HR MR/HR MR/HR ,

SH 2 OUT SOURCE OUT 24.53 22.24. 21.31 SH 1 OUT MR/HR MR/HR MR/HR SH 2 IN SOURCE OUT 58.43 53.37 52.1 SH 1 OUT MR/HR MR/HR MR/HR SH 2 OUT NOTE: CALIBRATED WITH A. G. E.

STANDARD GAMMA COBALT - 60 SOURCE IN SAN JOSE.

CAUTION: AFTER USE, PUSH BOTH SHIELDS & SOURCE TO LOCK POSITION.

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.f (s HATCH NUCLEAR PLANT PAGE 1 OF 10 DOCUMENT TYPE:

DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB.

........._________.___.____.._____.......... ___________ . 016-0 __.._.....___ .

DOCUMENT TITLE: . ..

RADIATION MONITOR RM-14 OPERATION & CALIBRATION X

SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: #

REV .

APPROVED APPROVED NO. DESCRIPTION EFFECTIVE DEPT. MGR. DATE GENERAL MGR. DATE DAT Replaces HNP-8114

._..__ ._ .... i____ _____.. ._____ E....

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MGR-0002 Rev. 1 L

62HI-OCB-016-0 A_, 0 2 of 10 RADI ATION MONITOR RM-14 OPERATION AND CALIBRATION A. PURPOSE-To establish a standard technique for operation and calibration of the Model RM-14 radiation monitor.

B. FREQUENCY

1. Operation of counters: As needed
2. Calibration of counters: Semi Annual C. REFERENCES
1. Radiation Monitor.Model RM-14 Technical Manual
2. Minipulser Procedure 62HI-OCB-018-0
3. Eberline Checkout Procedures D. SAFETY

-(O k/ Observe radiation protection procedures.

E. TEST EQUIPMENT

1. Minipulser with coaxial cable and capacitor with rating greater than 1KV
2. RM-14 CS-137 Check Source F. DESCRIPTION OF INSTRUMENT The RM-14 'is a small, compact count rate meter operated by AC power or a battery which is continuously trickle charged while the unit is plugged into the A.C. line. Battery condition is checked by front panel control.

I The monitor is intended primarily for use with a Geiger-Mueller detector, but with slight modifications, can be used with appropriate scintillation detectors.

The instrument presents a meter-reading of counts-per-minute (CPM) in three linear ranges. They are 0 to 500 CPM; O to 5000 CPM; O to 50,000 CPM. In areas having a very high count rate, it is possible to saturate the instrument. For example, as the detector approaches the surface to be monitored, the meter will 7- read full scale.on the highest count rate. Then as the detector (y) is moved still closer to the surface, the meter reading may drop off to zero. A speaker assembly with volume control is incorporated as part of the instrument.

~

9

62HI-OCB-016-0 0

3 of 10

-The meter has an adjustable, high limit contact which will sound an alarm when the meter reading reaches the limit.

G. DESCRIPTION OF CONTROLS

1. External Controls
a. Switch: The Power and Range Selector Switch is contained in one assembly. Power is applied to the instrument any time the Selector Switch is.in any position except OFF. The position of this switch also provides the meter multiplier function.
b. Power Lamp: A power light is provided for positive indication that AC power is being applied to the instrument.
c. Response Toggle Switch: A switch to set response time either Fast or Slow for best compromise between speed and fluctuation for the particular usage.

rg d. Reset Switch: The Reset Switch (push button type) is

(_./ used to bring the meter reading to zero rapidly and to turn off the alarm.

e. Volume Control: A continuously variable control is provided for the adjustment of the audio output. This control may vary the output from no audible output to a high level.

f.- Detector: Connection to detector. BNC series coaxial,

g. Alarm Set: Controls point on meter scale that alarm will actuate. Numbers 1 thru 5 correspond to whole increments on meter scale,
h. A.C. Power Connector: AC Power Connector is a Polarized Recessed Male Connector.
i. Recorder Connector: Connection for external fifty microamp recorder.
j. Test On Switch: The Test On Switch is to ensure that the instrument functions properly. When the instrument is put on AC and Test On Switch to ON, it should read 3600 CPM on the meter face.
2. Internal Controls O

\> a. Calibration controls: One control for each range which individually calibrates that range to agree with input count rate.

62HI-OCB-016-0 l ) 0 4 of 10

b. Alarm Set Calibrate: Control to set correlation between alarm set and meter reading at alarm point.

H. f TION OF INSTRUMENT NOTE If the Range Selector Switch must be on higher scale than X1 because of background, consideration must be given toward moving the instrument or shielding the detector to lower the background.

1. Check the instrument for physical damage.
2. Check instrument and ensure that the calibration due date j has not expired.

l 3. Connect the proper detector to the detector connection.

, 4. Plug the AC power connector into 115V, 60Hz line and ensure

! that the AC ON light is on.

l

(^'

k- 5. Turn the switch to BATT position and ensure that the meter indicates in the BATT OK area, if not recharge the instrument batteries.

6. Establish the average background count rate.

l 7. Set the Range Selector Switch to the scale which will allow I

the alarm point to be set at the full scale value of that l

range.. Set the alarm point to approximately full scale l value for the range the instrument is operating at, except j as noted below, i

l NOTE l If the instrument is located at a control point i

l

' where it is being used for whole body frisking, or at exit' doors, the ALARM point should be set at 100 + 20 CPM over the background count rate.

8. Instrument check. (Weekly during normal plant operation.

Twice per week during refueling, maintenance and extended shutdowns).

Use the following steps with Data Package 2:

a. Record instrument's location and instrument's serial

() number on Data Package 2.

b.- Establish the background count rate and record.

O

62HI-OCB-016-0

/' 0

%.] -

5 of 10

c. Turn range selector switch to BATT and ensure that the meter reads within the BATT OK region. Turn range selector switch back to appropriate scale.
d. Place RM-14 monitor check source near detector and ensure that the alarm point is set approximately fu11 scale except as noted at H.7 for the range that the instrument is operating at. Adjust alarm set point, if necessary, and record a check under ALARM CHECK on Data Package 2.
e. Operate the Reset Switch and observe that the meter reading drops off toward zero and that alarm turns off. Record indication under RESET CHECK on Data Package 2.
f. Turn range selector to X100 range and response toggle switch to FAST response. Place the check source in contact with the detector face or window. Always place the source on the face where the webbing will have the least effect on the count rate.

() g. Ensure that the meter indication is approximately the value of the background plus the value of the source +

20%. Record indication on Data Package 2. -

I. CALIBRATION OF INSTRUMENT (Semi Annual)

1. Turn Range Switch to'BATT., the meter should read to the BATT OK region. If not, plag instrument into 115 VAC outlet and let batteries charge until they check properly.
2. -Couple Minipulser to Detector Inlet connector using a capacitor with a 1 KV or higher rating.
3. Turn Selector Switch to X1 on the RM-14.

, 4. Adju'st Minipulser to a pulse height of 100 millivolts and a

! frequency of 200 CPM and 400 CPM. Record scale readings on Data Package 1 in the As Found column.

5. Repeat step I.3 and I.4 for X10 range and 2K CPM and 4K CPM. Record on Data Package 1.
6. Repeat step I.3 and I.4 for X100 range and 20K CPM and 40K CPM.
7. If readings are within + 20% of the Minipulser frequency, s connect the HP-210 probe to the RM-14 and perform an

.()

_ instrument check as in step H.8. Record meter reading on Data Package l'in the As Left column. Proceed to step I.17.

62HI-OCB-016-0

'([)'

6 of 10 NOTE Even though the instrument is + 20% of calibration points every effort should be made to make it read as close as possible to the calibration point.

8. If readings are not within + 20% of the Minipulser frequency proceed to step I.9.
9. Connect the Minipulser as in step I.2.
10. Turn Selector Switch to X1 on the RM-14.
11. Adjust Minipulser to a pulse height of 100 millivolts and a frequency of 400 cpm.
12. Adjust the Calibration control X1 inside instrument until the meter reading agrees with the Minipulser frequency.

Record reading on Data Package 1 in the As Left column.

7- 13. Repeat steps I.ll and I.12 for X10 and X100 ranges and 4,000 (j CPM and 40,000 CPM respectively.

14. Repeat step I 7.
15. If the instrument can not be calibrated initiate repairs.
16. Repeat steps I.7 - I.17 when instrument is repaired.
17. If the instrument checks out properly, complete Data Package 1, replace the calibration sticker with a new one bearing this test date and when the instrument is due for its next routine semi annual calibration.

i l

. 62HI -OCB -016 -0 1"'

b) 9 i

7 of 10 i

PROCEDURE DATA PACKAGE l~

DOCUMENT NO: 62HI-OCB.016 0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 XREF: RM-14 TOTAL SEEETS: 2 FREQUENCY: Semi Annual .i COMPLETED BY:

s DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003 0, 30AC-OPS-001-0, 30AC-OPS-003 0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

J

. Page 1 of 2 62HI.OCB-016 0 R00 FIGURE 1 Page 1 of 2 l

1 l

62HI-OCB-016-0 O

%) O 8 of 10 DATA PACKAGE 1 INSTRUMENT CALIBRATION DATA SHEET INSTRUMENT RM.14 LOCATION MPL NUMBER S.N.

INSTRUMENT READINGS ACTUAL ACTUAL DATE:

CALIB. COUNT DOSE CALIB. BY:

SOURCE RATE RATE AS FOUND AS LEFT MP.1 200 CPM N/A CPM CPM SN. 400 CPM N/A CPM CPM 2000 CPM N/A CPM CPM 4000 CPM N/A CPM CPM 20000 CPM N/A CPM CPM q 40000 CPM N/A V CPM CPM CS.137 16K to 8 uci 24 Kepm N/A CPM CPM SENS. SET (CIRCLE) SENS.

MAINT. PERFORMED REMARKS NOTE Semi Annual Calibration.

Page 2 of 2 62HI.OCB.016 0 R00 FIGURE 1 Page 2 of 2

. i l

62HI-OCB-016-0

(::)1 o 9 of 10 PROCEDURE DATA PACKAGE 2 DOCUMENT NO: 62HI.OCS-016 0 SERIAL NO: ROO.

MPL NO:

RTYPE: G15.14 XREF: N/A TOTAL SHEETS: 2 FREQUENCY: Weekly COMPLETED BY:

N

. ~)

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC.MGR.003 0, 30 AC. OPS.001 0, 30AC. OPS.003 0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS: Unit 61 & 2 62HI.OCB.016-0 ROO FIGURE 2 Page 1 of 2

)

62HI-OCB-016-0 LO 10 of 10 DATA PACKAGE 2 RM-14 RADIATION MONITOR INSTRUMENT CHECK DATE: UNIT NUMBER (NOTE 2) TODAY'S INST. SER. BKG SOURCE INST. READING RESET ALARM ACCEPTED BY LOCATION NUMBER CPM CPM W/ SOURCE CPM CHECK CHECK (NOTE 1)I 16 K to l l 24 K I I l

l 16 K to

. 24 K l 16 24 K K to li l I

1 i

16 K to j l l l 24 K i i i I 16 24 K K to l I

[ { i I I i 16 K to lI l l 1 24 K I I I i 16 K to-l t l I 24 K I I i  !

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16 K to l l l

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16 24 K K to (I l l I I NOTE 1: WHEN UNACCEPTABLE, NOTE IN THIS COLUMN AND REPORT TO LABORATORY FOREMAN OR DESIGNATED ALTERNATE.

NOTE 2 ACCEPTANCE CRITERIA FOR SOURCE CPM SHOULD BE PETWEEN 16K-24K CPM ABOVE BACKGROUND AT LOCATION.

LABORATORY FOREMAN Page 2 of 2 62HI-OCB-016-0 R00 FIGURE 2 Page 2 of 2 t

t

_r GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PAGE 1 OF

_______________________________________________ ____________7 ________________

DOCUMENT TYPE:

DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-

____________________________________________________________017-0 _______________ .

DOCUMENT TITLE:

GAMMA CALIBRATOR OPERATION & CALIBRATION X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: 84 i

REV. ,

APPROVED APPROVED I NO. DESCRIPTION EFFECTIVE DEPT. MGR. DATE GENERAL l DATE DATE

______ ________J_jGR.

0 Replaces HNP-8115 _____________________

_____________________ _Sh3

___ _______ _S_3) B____________4___ e

__ e _ _/___ c; i_ir_ _ _ _ _

( _____

J


_ ____________________ 1 MGR-0002 Rev. 1 1

62HI-OCB-017-0 x-) 0 2 of 7 GAMMA CALIBRATOR OPERATION AND CALIBRATION A. PURPOSE To provide instructions for the safe and correct operation of Gamma Calibrator.

l B. REFERENCES None C. 'ETY Observe Radiation Protection Procedures.

CAUTION The source contained within the shielded calibrator is a 200 ci, CS-137 source. Lethal exposures can be received from this source if approved procedures for

,~

operating the gamma calibrator are not complied with.

(~) Removal of the source from the calibrator or overriding the upper stop limit is prohibited without prior approval from the Health Physics Superintendent or higher authority.

D. TEST EQUIPMENT

1. Victoreen R-Meter
2. Calibrated survey meter E. DESCRIPTION OF EQUIPMENT The equipment known as a Gamma Calibrator is a device designed for calibrating portable health physics instruments while minimizing exposure to the technician performing the calibration.

A 200 curie cesium source, with its housing, is contained in a 25 foot deep " shielded" well, and is raised and lowered into the desired position by use of a tape drive and indicator.

Therefore, the instrument co be calibrated remains stationary, while the source is moved. The source housing (carriage) and tape measure assembly is so constructed that a direct reading on the hairline read-out provided gives a "true geometrical" center-to-center reading from the source to the detector chamber. Instruments to be calibrated are mounted in special b

62HI-OCB-017-0 (2)'

3 of 7 jigs for each type of instrument, whicb,inturnaremountedin the standard jig so that chamber centers for all instruments are positioned at the same point in space in the shielded well. A3 inch thick, movable, lead shield is used to obtain low-level gamma dose rates from the facility. This shield is covered with a 1/4 inch lucite slab to absorb the low-energy x-rays generated in the 3 inch lead shielding by the attenuation of cesium 137 gamma photons.

The gamma source is cesium 137, encapsulated in an ICN type 371 stainless steel gamma capsule.

F. DESCRIPTION OF CONTROLS

1. Key switch turns AC power on the control panel.
2. Three position toggle on top of panel gives an off position and two on positions for in and out tape directions.
3. A resistor switch on top of panel to allow speed control of tape movement.

() 4. Three lights on top of control panel gives visual indication of source positions.

a. Small green light indicates source at bottom of well,
b. Small red light indicates source in raised ~ position.
c. Red light indicates source at upper limits.
5. Three Red Area Indicator lights with signs.
6. Pad lock on control panel for limiting access to the limit control switch. Plant Health Physics Supervisor has key, G. OPERATION OF INSTRUMENT
1. Only personnel authorized by a Health Physics Supervisor or higher authority are permitted to operate the gamma calibrator.
2. Prior to entering calibration facility, observe alarm light above door. If light is on, source is exposed. Only personnel who are directly involved with instrument calibrations are allowed in the calibration room when the source is exposed. -

O

62HI-OCB-017-0

-l u_,;

O 4 of 7 NOTE This alarm light is lit only when the source carriage inside the well is at a position other than the storage position at the bottom of the well. The light should never be on when the gamma calibrator is unattended.

3. During operation of the gamma calibrator, a radiation dose rate instrument with an audible alarming device shall be used to warn technicians of any abnormal radiation levels.

-Upon annunciation of the alarm, take corrective action immediately.

4. Mount instrument (or its probe) to be calibrated in its special jig, open the gamma calibrator shield door, and place the instrument (probe) inside. Close the shield door.

NOTE For the PIC-6A and cutie-pie type instruments,

(-) the shield door may have to be left open to

\_/ read the instrument scale if it can not be read by observing the mirror mounted over the top of the well. '

5. Determine the positions of the source carriage and movable shield required for the dose rates desired by reading the calibration curves provided.
6. Run the source carriage up or down inside the well to the correct position by operating the UP-D0WN toggle switch and speed control knob while observing the carriage tape markings.
7. Position the movable shield in the withdrawn position.
8. When instrument calibration is complete, close the shield door, position the sliding shield over the well and run the source carriage to its bottom storage position. The Lower Limit Light should now be on and the Gamma Calibrator Alarm Light should be out.

NOTE This step should also be performed anytime the calibration room is left unattended.

O

\~)

,, 62HI-OCB-017-0 k-) 0 5 of 7

9. Weekly, verify that all four alarm lights are operating properly. Location of lights are as follows:

Gamma calibrator control panel South wall of calibrator lab above calibrator Above entrance to calibration lab North East end of roof to calibrator lab H. ANNUAL CALIBRATION OF INSTRUMENT

1. Make a complete radiation survey of the Calibration Room with'the shield door open and closed and with the source carriage at the following positions:

(a) Bottom lower limit (storage position).

(b) Halfway up.

(c) Upper limit.

NOTE n These tests are with the movable shield withdrawn.

2. Make a complete radiation survey of the Calibration Room Roof during the surveys of step H.l.
3. Map the gamma flux of the well for various source depths '

using the Victoreen R-Meter and appropriate chambers. The gamma flux is to be measured with the movable shield in the withdrawn position. All exposures are to be conducted for a time period that will give a chamber reading of at least 60 percent full scale.

4. From the gamma flux study in step H.3, develop calibration curves for dose rates vs. distance for movable shield withdrawn.

NOTE A calibration schedule will be maintained by the Health Physics Supervisor. The schedule will have calibration (dose rate measurements) frequencies for all instruments calibrated with the Gamma Calibrator.

O

l i

l 62HI-OCB-017-0

.t f3 s V O l

6 of 7  ;

_==- ................................. ___. _ .. __

I PROCEDURE DATA PACKAGE 1 a

DOCUMENT NO: 62HI-OCB-017-0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: As Required 1

COMPLETED BY:

DATE COMPLETED:

4 I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003 0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

l DATE REVIEWED:

I REMARKS:

1 r

l B

O Page 1 of 2 62HI-OCB-017-0 R00 FIGURE 1 .

Page 1 of 2 i

.R 62HI-OCB-017-0 i

l i

\/ 0 7 of 7 DATA PACKAGE 1 WEEKLY ALARM LIGHT CHECK

  • ALARM ALARM M. ARM M. ARM OATE LIGHT CN NAMC Of*

LICHT S. LICifT AT LIGHT ON REMARKS TECWICIAN CONTROL WALL CF ENTRANCE Ruff Cr' PANEL CAL LAB PERFORMING TO CM. LAS CM. LAS

............ . . . . . . . . . . . ............. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . ...CIECM .............

....... ......... .. . . . . . . . . . . .. . = - - - -

... . . . . . . . . . . ..- . = - _ - _ . . . . -

O . . . . . . . .. . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . ..................

v .......

. . . . . . . . . . . .. . . . . . . . . . . ............~ . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . ................ .

If any of the four alarm lights do not operate, notify Lab Foreman for corrective actiot

.t Page 2 of 2 62HI.0CB.017 0 R00 FIGURE 1 Page 2 of 2

t m.-------------------W_-_----------_---------- m----M-M_------m-------------

GEORGIA POWER COMPANY

/~s HATCH NUCLEAR PLANT

( PAGE 1 OF 6 m_________________________________m___________ m__m_________________________

DOCUMENT TYPE:

DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-018-0

.-----------WM-------W------m_-----------W---- m------_-M--------_------- __.

DOCUMENT. TITLE: -

)

MINI PULSER MODEL IT-1 OPERATION & CALIBRATION

.___________m_________m_W---_____W________m_m ._______m____M____m __________

X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: 'I m____ m

_____m_M_m______M_. ._______M--_-_M___ _M__W-___MMM_W m__M__ mm___m.__W.

REV. APPROVED APPROVED NO. DESCRIPTION EFFECTIVE DEPT. MGR. DATE GENERAL MGR. DATE DATE W _W_ em___M___m__m_W-____m .__m___m -

m___WM em_c____ '__m. m_____ m _____m.__

0 Replaces HNP-8116

[ g /p

___W_ __________________m__ ____ _______ ______ mm__M___m_____ yj gm4__g g

____m_ ________

mm6mm WWWeeMMMW6mmmmWWWMMMM mmmmmmmm6Weh emmmmm mmmmmmmmmmmmmm mmmmmm eWemeWmWmme ammmm mmmmmmm_mWemmemWWWWem emMmmm6_meme mmmmmm memWmWWWeemmmmW_emeM emm_mememme mWmeW emm_memmmmMem_mememmM mmmeMMWemMWe ememmm mmmem_mMWeemme memeWe mammmmm_eme mammm emWMWmMMWMMMMm6666mWm 4mMMMMWWWWWW WMMMMm WMMMmmmmMMMMWW WmMm6m WW6MMMMW&Mm ammme umMWmWMMWMmmmmmWMMWWW WWWMMMWm6mWM mMMWW6 mMMMMMMMMMMMMe mememe mmmmemMmmem emMMM mmmmehmemememmmmmemem emmmmmmmmmme eWWWmmeeMWmWWWMMWWMmmmmmmm mmmmmmmeMem memem eWemememmmmmmm6MmWMmm mmeMMmWmWWWm WMWMMM MMemmWWemeWMWe memmmm mmmmmmmmmeg WWMmm WWeememWm6MemmWWWWWMem6MMMW_M_MMSWMWMWemMWWWWWWWemmWWemmmmm m6Mmmmmmmme mMMWm 66MmWMWWWMWWW WWMMMW_#mMMWWWWWWWWM GMe#mW6MMMMW6MMWmMmWWWmm_m WWmMWWMMM6W ememm emeMWWememWMMMM_emWWm6MMWWWMWWWMM GWWWWWWmMWehWWWWWWMm6MWmMW WW6mW66meme WM_me WWWWmmmm_MmWWWWWWMMMMSWWWWWWWW6MWmWMempeMWWMmmmmmmmmmmMWemm emememememu 9s

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._mM...m....-...=m--..--=mM.-W--M .-M--...--=_.......-.mm-=W== .mm.....

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m.... .....m.m....-- mew-m. .m. ..mM_.mm ....---Wem--W W-MWM.

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eMemmemmmmMemmWMemWmmmmmmmeWMMememhemmmmmm6meMmmmmmmmmmmmmemMmmagemMWeemmme MGR-0002 Rev. 1 9

e

o 62HI-OCB-018-0 0

I 2 of 6 MINI PULSER MODEL IT-1 OPERATION AND CALIBRATION A. PURPOSE To ensure that the instrument is calibrated properly and to provide operation guides for the user.

! B. REFERENCE

! Mini Pulser Model MP-1 Technical Manual, T.D.C. Number T.D.C.-523.

C. SAFETY Exercise care when connecting coaxial cable to instrument being calibrated.

D. TEST EQUIPMENT l

1. Tectronix Oscilliscope Model 453 or equivalent.

- () 2. Hewlitt Packard Universal Counter Model 5325B or equivalent.

l E. DESCRIPTION OF INSTRUMENT i

The model MP-1 Mini Pulser is a pulse generator specifically designed to aid in calibrating or trouble shooting pulse counting instruments. The pulse repetition rate is variable from 10 CPM to 1.6 million CPM in discrete steps of 2 and is accurate to within 0.1%. The pulse shape is tailored to simulate most radiation detectors so the counting electronics will operate properly. The pulse amplitude is continuously variable from less j than 1 millivolt to 3 volts and is displayed on the panel meter.

F. DESCRIPTION OF CONTROLS l

1. External controls F '

I

a. CPM controls -

Three controls determine output l pulse repetition rate in counts (pulses) per minute.

i (1) Base switch - Establishes basic repetition j rate (2) Mult. switch -

Establishes factor which is multiplied by the base number to determine output repetition O rate.  ;

4


y= , w,- ---..,---.--r - --y .-n,.--- y,r,-. .-- -..e-.--m-,.- ,m . y--.,.-- .r.-- -m-nm,, -. m m nre,-+,--- - ,-.,r---.

62HI-OCB-018-0

(.

\_J 3 of 6 (3) Manual pushbutton - Provides manual control of output repetition rate. One pulse out for each actuation.

b. Amplitude controls - Two controls determine amplitude of output pulses.

(1) Coarse switch - Establishes the amplitude range of the output.

(2) Fine control - Controls meter reading and amplitude over the range selected by the Coarse switch,

c. Battery Check pushbutton-Indicates when battery voltage is outside prescribed limits (as indicated on meter)
d. Power switch - Turns instrument on or off.
2. Internal control fs

('~') Calibration control (R22) Adjusts the meter indication to agree with the output pulse amplitude.

G. OPERATION OF INSTRUMENT NOTE A capacitor will normally be connected to the mini-pulser to avoid D.C. voltage from entering the mini-pulser from the instrument being pulsed.

1. Connect Mini-Pulser coaxial cable to instrument being tested. See applicable instrument procedure for instructions.
2. Position CPM and Amplitude controls for count rate and amplitude specified in the instrument procedure.
3. Switch Power switch to ON.
4. Depress Battery Check pushbutton. The meter reading should fall within the marks on the meter.
5. After using Mini Pulser, switch Power switch to OFF and disconnect coaxial cable from instrument under test.

O t/ 6. Plug power cord into a 115 V.A.C. outlet. This will keep the battery charged.

62HI-OCB-018-0 0

4 of 6 H. CALIBRATION OF INSTRUMENT

1. Connect Mini Pulser coaxial cable to Oscilliscope input.
2. Switen Power switch to ON.
3. Depress Battery Check pushbutton. The meter reading should fall within the marks on the meter.
4. Turn Coarse switch to 100 MV. Adjust the Fine control for 60 millivolt output, as. observed on the oscilliscope.
5. Adjust Calibration control (R22) for a meter reading of 60 millivolts. Record the As Found'and As Left reading on Data Package 1.
6. Turn Power switch to OFF.
7. Connect Mini Pulser coaxial cable to Universal Counter input.
8. Turn Power switch to ON.
9. Check that count rates for all CPM control switch positions

(]) are accurate to within + 0.1% of switch setting. Record on Data Package 1. Period = 60 see Range CPM

10. Turn Power switch to OFF and disconnect coaxial cable from Universal Counter.
11. If instrument checks out properly, complete Data Package 1, replace the calibration sticker with a new one bearing this test date and when the instrument is due for its next routine semi-annual calibration.
12. If the instrument cannot be calibrated, initiate repairs.
13. Repeat Section H when instrument is repaired.

O

1 l

1 62HI-OCB-018-0

()

%) 0 5 of 6

'E' PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-018-0 SERIAL NO: ROO-MPL NO: D21-N RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: Semi-Annually COMPLETED BY O;

t,

"/

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, JOAC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 62HI.OCB-018-0 R00 C)

't/ FIGURE 1 Page 1 of 2 e

62HI-OCB-018-0

/~x i f

a 0 6 of 6 DATA PACKAGE 1 MINI-PULSER CALIBRATION M.P.L. No. Test Equip. Nos.

VOLTAGE CHECK Input As Found Left

.........__.......__. ................. ............. .....As .............

60 MV RANGE CHECK Range Expected Pulse As Found As Left (CPM) Duration (Period)

............. (Period)

.......................... ................. . .....( P e r io d )

10 x 1 6 sec + .1 4 20 X 1 3 sec 7 .1 4 40 X 1 1.5 sec + .1 1 80 X 1 750 ms +~.1 4 160 X 1 375 mx E .1 4 10 X 10 600 ms + .1 %

r~ 20 X 10 300 ms 7 .1 1 (N") 40 X 10 150 ms 7 .1 %

80 X 10 75 ms 7 .1 %

160 X 10 27.5 ms 1 1 %

10 X 100 60 ms + .1 4 20 X 100 30 ms 7 .1 4 40 X 100 15 ms 7 .1 4 80 X 100 7.5 ms~+ .1 4 160 X 100 3.75 ms~+ .1 %

10 X 1K 6 ma + .1 4 20 X 1K 3 ms 7 .1 4 40 X IK 1.5 ma + .1 %

80 X 1K 750 ps 7 .1 4 160 X IK 375 ps I .1 4 10 X 10K 600 ps + .1 4 20 X 10K 300 ps [ .1 4 40 X 10K 150 ps 1 1 %

B0 X 10K 75 ps + .1 %

160 X 10K 37.5 ui + .1 %

COMPLETED BY DATE Page 2 of 2 62HI-0CB-018-0 RUO (D

\_ /

PIGURE 1 Page 2 of 2

GEORGIA POUER COMPANY

) HATCH NUCLEAR PLANT PAGE 1 OF 7 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-019-0 DOCUMENT TITLE:

GEIGER COUNTER MODEL E-120 OPERATION & CALIBRATION X SAFETY RELATED MON-SAFETY RELATED EXPIRATION DATE: 4/ M REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE

_____ ____________________.._______ _ s.___ . ._______ ___________ _________ .

O Replaces HNP-8120 -

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A ......____ ....______.......___..____.. .......__________... ___._____.....

MGR-0002 Rev. 1 i e

1

62HI-OCB-019-0

() 0 2 of 7 GEIGER COUNTER MODEL E-120 OPERATION AND CALIBRATION A. PURPOSE To provide instructions for operation and calibration of the model E-120 portable survey meter with a Geiger-Muller type detector, normally used with a HP-260 hand probe.

B. FREQUENCY

1. Operation of counter: as needed.
2. Calibration of counter: semi annual.

C. REFERENCES

1. Geiger counter Model E-120 Technical Manual, TDC 60517M
2. Mini-Pulser Procedure 62HI-OCB-018-0

{} D. SAFETY Observe radiation protection procedures.

E. TEST EQUIPMENT

1. Mini-Pulser with coaxial cable.
2. RM-14 Cs-137 check source.

F. DESCRIPTION OF INSTRUMENT

1. The E-120 is a portable battery operated instrument used for the detection and measurement of beta or gamma radiation.

It has a geiger tube detector and the count rate is read out on a linear scale.

2. The full range of the instrument is 50 mR/hr or 70 K CPM.
3. The battery pack uses two standard D size batteries of any type commercially available.

G. DESCRIPTION OF CONTROLS

1. External controls ,
a. Switch - Five position switch turns instrument OFF, O DATT, X0.1, X1, and X10 scales.

62HI-OCB-019-0 (A

_) 0 3 of 7

b. Response - Controls response time of meter to most desirable ce;npromise between speed and fluctuation for j the particular range.
c. Reset - Discharges integrating capacitor, bringing meter to zero rapidly.
d. Phone - Pulse output for use with earphone, speaker or external scaler.
2. Internal controls Calibration controla - one control for each range which individually calibrates that range to agree with the Mini-pulser input.

H. OPERATION OF INSTRUMENT 1.

Ensure that the instrument calibration is current.

2. To start instrument turn the switch to the BATT position.

The meter should indicate within the BATT OK area, if not

! O tag the instrument out with a TO SHOP tag.

3. Place a check source in a repeatable position adjacent to the detector and move the switch to the X10 scale. Compare reading on the meter to the correct value of the source.

Using an 8 microcurie CS 137 check source reaaing shoula be between 20,000 & 40,000 cpm. It instrument does not read within above values, tag it out with a TO SHOP tag.

4. Push the RESET button and the reading should crop to zero rapidly, then climb back to the source reading in step 2 when the RESET is released. The RESPONSE may be cd3usted to get the most desirable compromise between speed of response and meter fluctuation. ,
5. Interpretation of readings:

NOTE All E-120's are calibrated to read in C.P.M. ,

unless otherwise stated on the instrument case.

a. The meter reading must be multiplied by the scale multiplier to obtain the proper reading. The fluctuation of the meter is normal and is caused by the random nature of radioactive decay.

62HI-OCB-019-0 0

4 of 7

b. The E-120, used with an HP-210 or HP-260 probe, has been calibrated using a mini-pulser (pulse generator) and should be used principally for contamination survey work. They should NOT be used to measure dose rates.

I. CALIBRATION OF INSTRUMENT

1. Remove the instrument from the case.
2. Turn the control switch to BATT position and check battery condition. Replace if necessary.
3. Connect the Mini-pulser into the probe connector.
4. Set Mini-pulser for negative pulses at 0.25 volt amplitude.
5. Set the Mini-pulser to 400 cpm, 4,000 cpm, and 40,000 cpm successively and check and record readings on Instrument Calibration Data Sheet (Figure 1) in the As Founo column.
6. If readings are within 1 5% of full scale, turn instrument OFF, remove Mini-pulser cable, place instriment in case, O(_/ reconnect detector and cable, and proceed to stop I.12.

NOTE 1...................

5% of full scale X 0.1 scale 35 cpm X 1 scale 350 cpm X 10 scale 3500 cpm

7. If reading are not within 1 5% proceed to Step I.6.
8. Set the Mini-pulser to 400 cpm and adjust the XO.1 control for 400 cpm on the motor.
9. Set the Mini-pulser to 4,000 cpm and adjust the X1 control for 4,000 cpm on the motor.
10. Set the Mini-pulser to 40,000 cpm and adjust tho X10 control for 40,000 cpm on the meter.
11. proceed to stop I.5 but record readings in the As Left column of Figure 1 it readings are now acceptable. If instrument cannot be calibrated, initiate repairs and repeat Section I.

O

l f 62HI-OCB-019-0 l

() 0 5 of 7

12. Place the RM-14 check source on contact with the detector, <

reading should be about 20,000 cpm. Record results in the As Found column and, if within + 20% of actual count rate, record also in the As Left column. Count rate of the RM-14 check source is about 20,000 cpm contact with G.M. detector.

NOTE Normal wide fluctuation in the meter is normal with the instrument on X.1 scale.

13. If results in I.12 are not within the limits specified, replace GM detector and repeat.
14. If the instrument checks out properly, complete Instrument Calibration Data Sheet, replace calibration sticker with a new one bearing the test date and when the instrument is due for its next routine semi annual calibration.

() I I

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l 6 2HI-OCB -019 -0 1

! 0 6 of 7 l

PROCEDURE DATA PACKAGE 1 l

DOCUMENT NOs_ 62HI-OCB-019 0 SERIAL NO: R00 MPL NO: D21=N RTYPE: C15.14 j

i XREF N/A TOTAL SHEETS __ 2 FREQUENCY Quarterly COMPLETED BY DATE COMPLETEDI

! HAVE REV!EWED THIS DATA PACKAGE FOR COMPLETENESS AND ACA!NST ACCEPTANCE CRITERIA IN ACCORDANCE WITH -

10AC MCR-003 0, 30AC-cps 001 0, 30AC+0Ps-003 0.

ACCEPTABLE UNACCEPTABLE REVIEWED SY l

DATE REVIEWEDt_

REMARKS l

l ,

i l

l

[s/] Page 1 of &

i 62H!*0CD=019=0 R00 FIGURF 1 Page 1 of 2 l

6 21;I-OCB-019 -0

(~~

(- 0 7 of 7 DATA PACKAGE 1 TNSTRUMENT CALIBRATION DATA SHEET INSTRUMENT EBERLINE E.120 LOCATION MPL NUMBER D21 N INSTRUMENT READING ACTUAL ACTUAL DATE:

CALIB. COUNT COUNT -..............................-

SOURCE RATE RATE CALIS. BYi (CPM) -...............-...............-

AS FOUND AS LEFT (CPM) (CPM)

MINI PULSER 400 CPM N/A SH 4000 CPM N/A 40,000 CPM N/A y ,, ..................................... .................................

PORTAL MONITOR CHECK 10K to 24K SOURCE SENS. SET (C!RCLE) SENS.

MAINT. PERFORMED REMARKS Page 2 of 2 42HI.OCB.019 0 R00 r!GURE 1 ,

Page 2 of 2

l n GEORGIA POWER COMPANY

( HATCH NUCLEAR PLANT PAGE 1 OF 10 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI.OCD-020-0 DOCUMENT TITLE:  ;

PORTABLE SCALER MODEL PS-1 l

...._________........_____.......... ________. ____.. .......__......_____. t X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: /7!//

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL M DATE DATE

........... __....______. ...______ ., ___.... ....___ 1_GR. _ _... ....__ ___.._____.

O Replacos HNP-8121 /

..... .................___ .f}g Lr...t. .g/.pjE., . . .g j z. ..g j

.._ gllf......

r

..... .____............... ......___... ...__............. __ ...__. ........... t f

..... ............._____.. ....__...... ....... .............. ...__. .__. __.... t O

f L

..... .....__............. ............ .__.... .............. ...... .......__.. i l

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\ MGR 0002 Rov. 1

62HI-OCB-020-0 7_ 0 2 of 10 PORTABLE SCALER MODEL PS-1 A. PURPOSE To ensure that the instrument is calibrated properly and to provide operation guides for the user.

B. SAFETY -

Observe radiation protection procedures.

C. REFERENCE Portable Scaler Model PS-1 technical manual.

D. TEST EQUIPMENT

1. TC-99m check source.
2. Electrostatic volt meter.

E. DESCRIPTION OF INSTRUMENT

() -

The Portable Scaler, Model PS-1, system consists of a variable high voltage supply, pulse amplifier, six decade scaler, timer and self contained rechargeable (NiCd) battery supply. All

, circuits are solid state with extensive use of integrated circuits to enhance reliability.

The Portable scaler, Model PS-1, is designed to be used with many scintillation and G-M detectors. The scaler section uses low ,

power integrated circuits with a light emitting diode.

F. DESCRIPTION OF CONTROLS AND CONNECTORS

1. External
a. Detector -

Connection of detector EIC-CJ-1 water proof connector is used and mates E!C-CP-1 connector.

b. H.V. Adjust- Regulated,' adjustable by internal control from 200 volts to approximately 1500 volts. Single turn control for sotting and changing H.V.
c. Roset-Start- Switch to roset all appropriato circuitry to zero and start a counting sequence.

O I

5

62HI-0CB-020-0

,-. 0 3 of 10

d. Push to - Switch to turn on the (LED) light Display emitting diode displays for a preset time.
e. Function - The test position is used to test the Switch batteries for charge conditions and the (LED) verifies no digits are burned out. This switch also selects the desired counting time, 0.5, 1, 2, 3, 4,

& S minutes. A manual counting position

& stop position are also available.

f. Battery- BNC connector provided so that an Charger external battery charger may be connected.
g. Phone output- BNC connector provided so that earphones or an external speaker may be connected.
2. Internal Time Adjust- Control on timer board that adjusts the

,- oscillator frequency for the timer card.

G. OPERATION OF INSTRUMENT

  • NOTE The PS-1 will normally be connected to an HP-210 probe (G.M.)

mounted on a shielded sample holder and used for beta and gamma t detection.

1. Switch Function Switch to TEST.

NOTE If the display of eights (888888) is not displayed on the roadout and the DATT OK light to not on, the instrument should be charged for approximately a 100 hour0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> rate. The instrument can be put back into service for a rate of 40 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> uno before rocharging is necessary.

2. Switch Function Switch to the desired counting timo.
3. push Roset-Start switch and coloane. Instrument should begin counting.
4. Daily Calibration (When instrument la in daily uno).

I a. Det Function Switch to TEST and record results on Data k Packago 1. (800 Stop G.1).

l l

62HI-OCB-020-0

.O O xj 4 of 10

b. Set Function Switch to desired counting time and check the Push-To-Display switch and record result on Data Package 1.
c. Perform a 5 minute background count and record the background counts in C.P.M. on Data Package 1.
d. Place a radioactive standard in position for counting and count for 5 minutes. Record results on Data Package 1 in not C.P.M. and on graph developed from chi-square test in Section H.2. (Figure 2, Data Package 1).

NOTE Use a Technetium-99 approximately or equal to 3.0 X 103 DPM beta source centered in a planchet.

e. The reading should ta within + 3 sigma of the source's known count rate and should be plotted around the mean count line.

(^^ f. Calculate the counter efficiency for the geometry in

()

Step G.d. and record on Data Package 1.

Net C.P.M. X 100 Efficiency = D.P.M.

H. CALIBRATION OF INSTRUMENT

1. Gm Detectors NOTE If using a voltmeter to check high voltage donote the H.P.L.

number of the voltmotor used on Data Package 2.

a. Adjust H.V. adjust to operation voltage of the detector being used. Refer to Technical Manual Figure 2-4.

CAUTION DO NOT OVER-VOLTAGE THE GH TUDE (900 VOLTS).

b. Connect the detector,
c. Turn Functional Switch to desired counting time.
d. Push Start-Roset Switch and expone detector to a check j 7,s source.

U

62HI-OCB-020-0 0 ,

5 of 10

2. Chi-Square Test (Quarter Test) j
a. Perform a one minute background count and record the r background counts in BKG CPM on Data Package 2. i i
b. Place a radioactive standard in position for counting.  !

Use the same standard which will be used in the daily '

calibration. ,

c. Count the source for one minute duration twenty times >

and record net count results on Data Package 2. '

d. Calculate chi-square. If results are between 7 and 35,  !

the instrument should be functioning properly.  !

e. Calculate 1 sigma, 2 sigma, and 3 sigra error. Develop  :

a graph for daily calibration check. '

6 l

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62HI-OCB-020-0 0

O 6 of 10 PROCEDURE DATA PACKAGE 1 i

DOCUMENT NO: 62HI.0CB.020 0 SERIAL NO: R00 MPL NO:

RTYPE: 015.14 XREF:

TOTAL SHEETS: 3 FREQUENCY: Monthly COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR C0hPLETENESS AND ACA!NST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC.MGR.003 0, 30AC.0PS.001 0, 30AC.0PS.003 0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED: _ _ .

REMARKS:

Page 1 of 3 62HI.0CB.020 0 R00 O

( ,! FIGURE i Page 1 of 3

62HI-OCB-020-0 O

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DATA PACKAGE 1 PS.1 fly T filYIIAff0N

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COOff! M TIN 88 S&CE000tse l Mts0T89

<B) SOURCE C00st Raft _ Cen' seeses . $ Mtsefss E . 3 stoma _Crue

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62HI-OCB-020-0 l l

0 9 of 10 i

I PROCEDURE DATA PACKAGE 2 J DOCUMENT NO: 62HI-OCB 020 0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: Quarter 1Y t

2 COMPLETED BY:

O DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003 0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 62HI-OCB 020-0 R00 bd FIGURE 2 Page 1 of 2 4

-62HI-OCB-020-0 0

f 10 of 10 DATA PACKAGE 2 DATA SHEET 2 CNI-5QUARE TE3T DATE: PS-1 COUR.TER SOURCE:

COUNT TIME / MIN SER. 50.

E.T. SETTING M F.L. # OF 70LTMETER 3E0 CPM IF USED RUN NO. no a -H' (n-M) 2 1

2 3

a 9

6 7

8 9

10 I

i 11 l

, 12 13 14 15 16 17 18 19 20 I^

j SUM (SIONA) eNET COUNTS a a g a 's a + 1 sigma e 20 i + 2 sigma e 2 2 (Chi-Square) e E(n-n)2 m I + 3 signa e a 22 must be between T & 35 l 3 - 2 sigma a COMPLETED BYr DATE l ii - 3 sissa =

l l

Page 2 of 2 62HI-OCB-020-0 R00 FIGURE 2 Page 2 of 2 a----- - - - - - .- , - - , - - - - - - - - - - - - - - -

_s GEORGIA POWER COMPANY

,s-

)

1 HATCH NUCLEAR PLANT PAGE 1 OF 8 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-024-0 DOCUMENT TITLE: "

REGULATED AIR SAMPLER MODEL RAS-1 OPERATION AND CALIBRATION SAFETY RELATED X NON-SAFETY RELATED EXPIRATION DATE: // /f REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL GR. DATE DATE 0 Replaces HNP-8128 Mg a gph __/ .

? _ _6 #_ -[

6 _/d_'

['N 4

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62HI-OCB-024-0

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2 of 8 REGULATED AIR SAMPLER MODEL RAS-1 OPERATION AND CALIBRATION A. PURPOSE To establish a standard technique for the operation and cali-

~

bration of Low Volume Air Samplers.

B. FREQUENCY

1. Operation of air sampler: As needed
2. Calibration of air sampler: Semi Annual C.. REFERENCES l 1. 62RP-RAD-009-0 Airborne Radioactivity Concentration Determination
2. Merriam Flow Meter, D-40-N007 Instruction Book TDC 2077M D. SAFETY Observe Radiation Protection Procedures.

E. TEST EQUIPMENT l 1. Merriam Flow Meter - With Gauge F. DESCRIPTION OF INSTRUMENT The RAS-1 is used for sampling air throughout the plant for particulate and radioiodine airborne radioactivity. The

, regulated air pump offers a constant air flow, while depositing particulate on a 47 mm glass fiber filter then through an iodine cartridge for iodine collection.

G. DESCRIPTION OF CONTROLS AND CONNECTORS None i

H. OPERATION OF INSTRUMENT

1. Be sure the sampler bears a current calibration sticker.
2. Remove the outer ring by turning it counterclockwise and install a 47 mm glass fiber filter paper in the holder.

.() Replace outer ring securely.

l 3 Open_the charcoal cartridge holder and place an iodine cartridge into the holder, making certain to note the direction of sample flow through the cartridge.

L

62HI-OCB-024-0 j( )_

0 3 of 8

4. The sample LOCATION, DATE and TIME ON should be written on the iodine cartridge and on an air sample envelope.
5. Plug the. sampler in and turn it on, allowing a two minute warm-up time. Read the. rotameter (center of the ball) and multiply the flow in L.P.M. times the correction factor for that instrument. Record the air sample envelope. this initial flow rate (L.P.M.) on
6. When the sample is complete, note the final reading on the rotameter (center of the ball) in L.P.M. and multiply it by the instruments correction factor. Record the TIME OFF and the final flow rate on the iodine cartridge and the air sample envelope.
7. Place filter and cartridge in the air sample envelope and return both samples to the Health Physics Office for counting.
8. Take the AVERAGE flow rate between the initial and final

~N flow rates, as the sample flow rate in L.P.M., and complete (d Figure 2 of 62RP-RAD-009-0 using the appropriate formulas

\

given on the bottom for the calculations and follow instructions as found in 62RP-RAD-009-0.

I. CALIBRATION

1. Place filter paper and charcoal in sampler as though preparing to take a sample, making sure that the cartridge holder together.

and the filter paper retaining ring are tightened

2. Plug the sampler in and turn the pump on, allowing a minimum warm-up time of two minutes.
3. Press the rubber adaptor provided on the Merriam Flow Meter up tight against the filter paper on the sample head.
4. Observe the magnehelic gauge reading in inches of water and record reading on Data Package 1. Remove adaptor from sample head.

5._ Using the prepared graphs for the merriam flow meter, convert inches of water to L.P.M. and record this value on Data Package 1.

6. Observe the rotameter reading (center of the ball) and record this reading on Data Package 1 in L.P.M.
7. Complete Data Package 1, dividing the magnehelic reading (L.P.M.) by the rotameter reading (L.P.M.), to get the correction factor for that low volume air sampler. Place a tag on the sampler bearing its correction factor.

I l

62HI-OCB-024-0 0

4 of 8

8. Replace the calibration sticker with a new one bearing the test date and the date of its next routine semi-annual + 21 ~

day calibration.

9.. Complcte Data Package 2 and place in Health Physics Office in the Low Volume Air Sample Log Books (I and II).

O -

t I

4 4'

I 4

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+,,-,--,---<~,-myne,--,--.,,e ,-m- ..,,-,--m---.~wn_m..g...n- .._.,,w,-n.-- n--.,.---,,n-,

i 1

1 I

i k I 62HI-OCB-024-0 q.

.(g 0 5 of 8 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-024 0 ,

SERIAL NO: R00 MPL NO:

RTYPE g .j ,14 XREF:

i i TOTAL SHEETS: 2 '

t FREQUENCY: SEMI ANNUAL i

1 COMPLETED BY:

DATE COMPLETED:

I' I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH

. 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE

( REVIEWED BY:

DATE REVIEWED:

REMARKS:  !

T 4

l l

1 1

s Page 1 of 2 1

62HI-OCB-024-0 R00 FIGURE 1 ,

Page 1 or 2  !

i

62HI-OCB-024-0 0 0 6 of 8 DATA PACKAGE 1 RAS CALIBRATION SHEET

\ M.P.L. NUMBER SERIAL NUMBER MAGNEHELIC INCHES OF WATER LPM ROTAMETER LPM CORRECTION FACTOR:

TEST EQUIPMENT USED: MPL (FLOW METER)

MAINTENANCE PERFORMED:

LOCATION: CALIBRATED BY:

DATE:

  • CORRECTION FACTOR = MAGNEHELIC READI*:G IN L.P.M.

ROTAMETER READING IN L.P.M.

Page 2 of 2 62HI-OCB-024-0 R00 0

FIGURE 1 .

Page 2 of 2

__ .- - . _ _ . . . . . _ . . .. _ .. -. __ _.~ . - . . _ - - . . _.___ .m__ . _ . . _ _ . _ _ . . _ _ - .

62HI-OCB-024-0

0 t 7 of 8 PROCEDURE DATA PACKAGE 2 4

DOCUMENT NO: 62HI-OCB-024-0 SERIAL NO: R00 t

I MPL NO:

4 RTYPE: G15.14 t

i XEEF:

I TOTAL SHEETS: 2 d

, FREQUENCY: SEMI ANNUAL COMPLETED BY:

l

- DATE COMPLETED:

I I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-CPS-001-0, 30AC-OPS-003-0. ,

ACCEPTABLE UNACCEPTABLE

! REVIEWED BY: '

1 DATZ REVIEWED:

{

REMARKS:

f i,

l 4

r Page 1 of 2

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62HI-CCB-024-0 R00 4

FIGURE 2 Page 1 of 2

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8 of 8 DATA PACKAGE 2 RAS FLOW RATE LOG SERIAL NUMBER '*CORRF.CTION FACTOR LOCATION REMARKS 1

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CCRRECTION FACTOR X ROTAMETER READING IN L.P.M. = ACTUAL FLOW RATE j IN L.P.M.

l1 Page 2 of 2 62HI-OCB-024-0 R00 l

, FIGURE 2

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~T GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PAGE 1 OF 8 4

DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-025-0 DOCUMENT TITLE:

PORTABLE ION CHAMBER MODEL RO-3A OPERATION AND CALIBRATION SAFETY RELATED X NON-SAFETY RELATED EXPIRATION DATE: /h /I i

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE

____-__ __._____s_____ _________________

0 Replaces HNP-8129 g%_______ _g _ _g_ -_ _ _ _ _ - _+qgj _ _ _ _ _ - _ _ _ _g___

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i MGR-0002 Rev. 1 i

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62HI-OCB-025-0

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PORTABLE ION CHAMBER MODEL RO-3A OPERATION AND CALIBRATION A. PURPOSE To ensure instrument is calibrated properly and to provide guides for the user.

B. SAFETY

1. Observe Radiation Protection Procedures.

C. REFERENCES

1. Portable Ion Chamber Model RO-3A Technical Manual.
2. Gamma Calibrator Procedure. 62HI-OCB-017-0.
3. Eberline Instrument Corporation Check-Out procedures.

D. TEST EQUIPMENT

1. Gamma Calibrator.
2. Calibrated Beta Source.
3. 92 M1111 curie CS-137 Source.

E. DESCRIPTION OF INSTRUMENT The Ion Chamber, model RO-3A, is a portable air ion chamber instrument used to detect beta, gamma and x-ray radiation. The RO-3A has four linear ranges of operation to measure dose rates.

The ion chamber is vented to atmospheric pressure and is specifically region.

designed to have Flat energy response into the x-ray The model RO-3A is sensitive to beta, gamma and x-ray and is calibrated to gamma radiation. A single rotary switch turns the instrument off, provides battery checks, checks zero setting, and selects range of operation.

F. DESCRIPTION OF CONTROLS

1. External Controls
a. Function Switch-Nine position rotary switch that turns i the instrument OFF, checks the condition of the I batteries, checks instrument ZERO, and selects the range of operati,on to be used.

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62HI-OCB-025-0

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b. ZERO knob-used to set the meter to zero when ZERO switch position is selected or when in an insignificant radiation field,
c. Calibration Controls - Four variable resistors, one for each range.

G. OPERATION OF INSTRUMENT

1. Turn the function switch to BAT 1, BAT 2 and then to BAT 3 position. The meter should read above the BATT cut-off line in all cases.

NOTE If batt check on any range does not indicate good batteries then tag the instrument out with a TO SHOP tag.

2. Turn the function switch to ZERO position. Check that the meter reads zero. If not, set it to zero with the ZERO knob.

3.- Set the function switch to the desired range of operation.

-('d') The switch position selected is the full scale reading of that range.

NOTE When selecting the most sensitive range (50 mr/hr) switching transient noise may cause a temporary deflection of the meter. This can be avoided by first selecting 500 mr/hr, letting the needle settle, and then switching to 50 mr/hr range.

4. When measuring beta or low energy gamma or x-ray emissions, open the beta shield and face the instrument toward the radiation source. When the shield is open, protect the thin window against damage by puncture and contamination.

NOTE The zero setting of the instrument may be checked in radiation field by merely sellecting the ZERO position. Since the ion chamber is vented to atmospheric pressure, it is sensitive to changes in both air pressure and temperature. Tables 2-1 and 2-2 in the Technical Manual gives correction factors which should be used if operation conditions are different from the calibration conditions.

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62rI-OCB-025-0

\m) 0 4 of 8 H. DOSE RATE INTERPRETATION

1. Gamma radiation When no significant difference is seen in the needle deflection with the end cap on the end cap off, the radiation reading should be reported as gamma only. It should be remembered, however, that as the gamma radiation levels increases the beta radiation m1y be masked out by the high level gamma radiation and will go undetected unless smears are taken.
b. When significant differences are seen in the needle deflection with the end cap on and the end cap off, the indicated gamma exposure rate is the meter reading with the beta shield on. The indicated beta exposure is the difference between the readings with the beta shield on and the beta shield off.

NOTE The meter readings above will reflect true dose rate r~ exposure only for true FIELD readings, i.e. the

(_)x intensity of the radiation in all parts of the ion chamber is practically the same. Small beams of gamma radiation will give meter readings less than actual exposure rate and must be evaluated on an individual basis. Gamma contact (surface) measurements must be corrected to estimate true exposure rates,

c. Gamma Contact Rate NOTE Gamma contact exposure meter readings should always be expressed as a 2 inch reading, since the effective center of the ion chamber is about 1 3/4" (rounded to 2") from the front end. The multiplication factor will correct the readings at 2" to an exposure rate of contact.
1. Multiplication factors to obtain gamma contact exposure rate.

SOURCE DIAMETER MULTIPLY METER READING AT 2" BY

> 60 inches 1 10 to 60 inches -

2 3-10 inches 8

(]) (3 inches (measure gamma exposure rate at least 6 source diameters away from the source and use the inverse square law to calcualte the dose rate).

l 62HI-OCB-025-0 o

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2. Beta Radiation (Beta Contact rate)

(1) Multiplication factors to obtain beta contact exposure rate.

SOURCE DIAMETER MULTIPLY METER READING AT 2" BY (a) (a)

> 3 inches 4

<3 inches 12 Diameter of source in inches (a) This value may change. See factor on side of instrument.

I. GAMMA CALIBRATION OF INSTRUMENT CAUTION The gamma field intensities required for calibration of the RO-3A are potentially hazardous to personnel, observe precautions to prevent over exposure.

NOTE It is very important that the inside of the chamber ssembly be kept dry due to avoid leakage currents due to moisture. If the desiccant becomes saturated the RO-3A becomes erratic Cae to moisture, renew the desiccant crystals and cycle the inshrument between room temperature (or lower) and + 1400F three or four times to flush the chamber air across the desiccant.

CAUTION Avoid any contact with electrical components with the hands as damage to the amplifier will occur.

1. Turn the Function Switch to BAT 1, BAT 2 and then BAT 3 positions. The meter should read above the BATT cut-off line in all cases.

NOTE The entire chamber assembly must be in the gamma field.

2. Turn the function switch to zero, check zero off-set. If not on zero turn the ZERO knob until the needle comes to the zero position.

62HI-OCB-025-0 0

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3. Turn the function switch to 50 mr/hr, place the instrument in about a 10 mr/hr and 40 mr/hr gamma field respectively and check the readings. Record the readings on the Instrument Calibration Data Sheet (figure 1) in the As Found Column.
4. Turn the function switch to 500 mr/hr. Check zero off-set, Adjustment should not be necessary.
5. Repeat step I.3 for about 100 mr/hr and 400 mr/hr gamma fields respectively, and record the reading in the AS FOUND COLUMN.
6. Turn the function switch tc 5 R/hr. Check zero off-set, Adjustment should be necessary.
7. Repeat step I.3 for about 2 R/hr and 4 R/hr gamma field respectively, and record the reading in the AS FOUND COLUMN.
8. Turn the function switch to 50 R/hr. Check zero off-set, Adjustment should not be necessary.
9. Repeat step I.3 for about 10 R/hr and 40 R/hr gamma field

{} respectively, record the reading in the AS FOUND COLUMN.

10.

If the in steps instrument I.3 thru reads I.9. with + 20% of the actual dose rates Write-'all values recorded in the AS FOUND COLUMN into the AS LEFT COLUMN and proceed to Section J.

11.

If the instrument does not read within + 20% of the actual dose rate in eaci. field, continue with step I.12.

12. Turn the function switch to 50 mr/hr. Check zero off-set.

Place instrument in about 10 mr/hr and adjust the 50 mc/hr control resistor until the meter indicates the field reading or + 20% of this value, also check the 40 mr/hr dose rate using a field of about 40 mr/hr. Record meter values in the AS LEFT COLUMN.

13. Turn the function switch to 500 mr/hr. Check zero off-set.

Place instrument in about 100 mr/hr field and adjust the 500 mr/hr resistor until the meter indicates the field reading ~+

20% of this value, also check the 400 mr/hr dose rate.

Record meter values in the AS LEFT COLUMN.

14. Turn the function switch to 5 R/hr. Check zero off-set.

Place instrument in about 2 R/hr and adjust the 5 R/hr resistor until the meter indicates the field reading or +

20% of this value, also check the 4 R/hr dose rate. Record

(]) meter values in the AS LEFT COLUMN.

62HI-OCB-025-0

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15. Turn the function switch to 50 R/hr, check zero off-set.

Place instrument in about 10 R/hr and adjust the 50 R/hr resistor until the meter reads + 20% of the field reading, also check the 40 R/hr dose rate. Record meter values in the AS LEFT COLUMN.

J. BETA CALIBRATION OF INSTRUMENT

1. Zero RO-3A, place instrument on center of the beta source slab (beta window closed) and measure gamma radiation, record in the AS FOUND COLUMN. Open beta window and measure radiation level, record in the AS FOUND COLUMN. Open beta window and measure radiation level, record in the AS FOUND COLUMN. Subtract the gamma reading form the beta and gamma reading. 'This is the beta indication. The beta source slab should read 230 mead /hr (beta) at the surface.

Determine a beta multiplication factor by dividing 230 by the indicated beta dose rate. Record this value on the DATA SHEET in the REMARKS section and on the side of the instrument.

NOTE This value must be used when determining beta dose rates, i.e. True beta dose rate = indicated beta dose rate X multiplication factor.

NOTE If changing mylar is necessary on RO-3A be sure to check mylar with a ohm meter and put conductive side to the inside of the detector.

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O O O FIGURE 1 INSTRtFENT CALIBRATION DATA SHEET -

INSTRtMENT CAlfBRATION DATA $1 FEET trtSTRUMENT PO-3A LOCATION WL NUMBER D21-N SERIAL ritbusER '

INSTRt) TENT READINGS ACTUAL ACTUAL DATE: DATE: DATE: DATE:

CALIB. COUNT DOSE CALIB. BY: CAllB. BY: Calla. BV: CAllB. BY-50f2CE RATE RATE AS FOUND AS LEFT AS FOUND AS LEFT AS FOU:D AS LEFT AS FOUND AS LEFT N/A 10 mr/hr N/A 40 mr/hr N/A 100 mr/hr N/A 400 mr/hr .

N/A 2 R/hr -

N/A 4 R/hr 1 N/A 10 R/hr N/A 40 R/hr BETA GAPHL= GAPMA = BETA = _

$ BETA CORRECTION l' ACTOR 8

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O a O P.AlnT. PERFORMES *

  • RE!*. ARKS - "

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GEORGIA POWER COMPANY k_) HATCH NUCLEAR PLANT PAGE 1 0F 7 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI 0CB_026 0 1 _____________________..._______________________________________ ___________. ..

DOCUMENT TITLE:

ROBBINS AIR PURIFICATION SYSTEM SAFETY RELATED I

l X NON-SAFETY RELATED EXPIRATION DATE:

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE 0 Replaces HNP 8130 E/y d

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MGR-0002 Rev. 1 l

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62HI-OCB-026-0 0

() 2 of 7 ROBBINS AIR PURIFICATION SYSTEM A. PURPOSE To prescribe operating instructions for the startup and shutdown of the air purification system which supplies breathing air for SCBA equipment.

B. REFERENCE Robbins Instruction Manual.

C. QUALIFICATIONS OF OPERATORS Only personnel who have been trained by a qualified instructor in the use and operation of this equipment may operate it. A list of such personnel will be kept on file by Health Physics.

D. STARTUP CAUTION (1) Pressure plays a vital role in the purification of

(] Respiratory air. It is essential that air cylinders be filled with the system pressure on the OUTPUT side being a MINIMUM of 2,800 PSIG.

(2) If there is any doubt about operation of the purification system, DO NOT USE IT! Remember that human lives are at stake.

1. Record on Data Package 1 the operating hours as shown on the hour meter at tear of compressor.

NOTE It is essential to record operating time because the PURIFIER and CHARCOAL cartridges must be changed at 40 HOUR intervals. The CATALYST cartridge must be changed yearly.

2. Verify that the system INLET and OUTLET valves on fron panel are fully CLOSED.
3. Check the OIL LEVEL in the compressor crankcase. Fill to overflow point if necessary.

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4. Make the necessary hardware connections to fill the air cylinders.

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} 5. Place the MASTER ON/OFF SWITCH in the ON position.  !

j NOTE i

l The compressor will start at this time if system pressure is

below 2,700 PSIG.

l 6. SLOWLY OPEN the system INLET valve.

l 7. SLOWLY OPEN the sytem BLEED valve. Compressor will start if 1

it did not start earlier. Use the BLEED valve to regulate  !

pressure on the OUTLET side at 2,800 PSIG or slightly above, f 8. Momentarily ACTUATE the TOGGLE SWITCH on the Automatic Drain i Valve Control Box to clear the sump of waste material.  ;

i NOTE l This step is to be used ONLY on INITIAL STARTUP for the day. .!

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9. With the BLEED valve still OPEN and regulating OUTPUT
pressure at 2,800 PSIG, OPEN valve to Moisture Indicator 4

until a flow of air can be felt around the Indicator capsule.

1

a. Allow air to pass over Moisture Indicator Beads for at  !

. least one minute. i

b. Observe Indicator Beads for a Color Change.
c. If Beads remain Dark Blue in Color, system Moisture  !

! Content is NORMAL (Go to Step 10) l a

i d. If Beads turn a Light Color, System Moisture content is

! not NORMAL. Do not fill air bottles when this  !

condition exists. Submit an MR to have the Filter  !

} Cartridges changed.

f 10. CLOSE the system BLEED valve. ,

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11. CLOSE valve to Moisture Indicator. i l

i 12. SLOWLY OPEN the system OUTLET valve.

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13. Adjust PRESSURE REGULATOR (If not PRESET) for proper t regulated output pressure for the air cylinder being filled.

() 14. OPEN air cylinder SHUTOFF valve.

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l 4 of 7 l 15. When compressor starts, use the system OUTLET valve to adjust the flow rate so that system pressure DOES NOT DROP below 2,800 PSIG on the system OUTLET side while the air cylinder is being filled.

! NOTE When the air cylinder is filled, the compressor will shut off at 3,000 PSIG.

E. SHUTDOWN ,

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1. CLOSE the air cylinder SHUTOFF valve.
2. CLOSE the sytem OUTLET valve. I e
3. SLOWLY disconnect the fill line from the air cylinder, being careful not to release line pressure SUDDENLY. ,
NOTE If additional air cylinders are to be filled, repeat steps -

(]) 12 thru 15, first ensuring that the fill line has been connected to the air cylinder to be filled. If the system is to be shut down for the remainder of the work day, proceed to step 1. Check the Moisture Indicator occasionally during the filling process to ensure that no mositure has entered the system.

4. SLOWLY OPEN the system BLEED vlave until the compressor starts:
a. Use the BLEED valve to regulate the pressure on the OUTLET side at 2,800 PSIG or slightly above.
b. Momentarily ACTUATE the TOGGLE SWITCH on the Automatic j Drain Valve control Box to clear the sump of waste l material which might solidify during an extended  :

shutdown. l

5. CLOSE the system BLEED valve.  !

NOTE i

The compressor will shut down when system pressure reaches  !

3,000 PSIG.

6. CLOSE the system INLET valve after compressor shuts off.  !

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i 62HI-OCB-026-0 lO l 5 of 7 i

NOTE The system should be shut down at full pressure. Do NOT depressurize the system except to replace cartridges or for other maintenance.

7. Place the MASTER ON/OFF SWITCH in the OFF position.

NOTE Check the Moisture Indicator occasionally during the Filling Process to ensure that no moisture has entered the system.

8. Record.the operating hours as shown on the hour meter at rear of compressor on Data Package 1.
9. Complete Data Package 1.

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62HI-0,CB-026-0 n 0 6 of 7 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI.0C'J.026 0 SERIAL NO: R00 MPL NOs__P21.C005 RTYPE: G15.14 XREF: N/A TOTAL SHEETS: 2 FREQUENCYt._As Required COMPLETED BY:

DATE COMPLETED I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA III ACCORDANCE WITH 10AC.MGR.003 0, 30AC.0PS.001 0, 30AC.0PS.003 0.

ACCEPTANCE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 62HI.OCB.026 0 R00 FIGURE 1 Page 1 ot 2

e 62HI-OCB-026-0

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7 of 7 DATA PACKAGE 1 OPERATING LOG SHEET 1 ROBBINS AIR PURIFICATION SYSTEM HOUR METER READING TOTAL HRS. OPERATED DATE BEFORE OPN. AFTER OPN. OPERATING BY REMARKS 7s

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FIGURE 1 Page 2 ot 2

GEORGIA POWER COMPANY p)s s_ HATCH NUCLEAR PLANT PAGE 1 OF 7 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-027-0 DOCUMENT TITLE: .

UNDERWATER HI RANGE SURVEY METER OPERATION & CALIBRATION SAFETY RELATED X NON-SAFETY RELATED EXPIRATION DATE: // "I'

/

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE

.___._______________________________ .._____ __ _____9_____ ____..___________

0 Replaces HNP.8132 pg) ,- /

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Protected Area i ' Building 10 RESULTSt Lungs and CI_ uci Thyroid uci r s

( l COMPARISON: ( ) Agreement ( INon. Agreement REMARKSt.

COMPLETED BY DATE a

62HI.OCB 028 0 R00 rigure 1

62HI-OCB-028-0 0

15 of 15 FIGURE 2 CRITERIA FOR COMPARING ANALYTICAL MEASUREMENTS This attachment provides criteria for comparing results of capability tests and verification measurements. The criteria are based on an empirical relationship which combines prior experience and the accuracy needs of this program.

! In these criteria, the Judgment liraits are variable in relation to the comparison of the hRC Reference Laboratory's value to its associated uncertainty. As the ratio, referreo to in this program as

" Resolution" increases, the acceptability of a licensee's measurement i should be more selective. Conversely, poorer agreement must be considered acceptable as the resolution decreases.

LICENSEE VALUE RATIO = -------------------

O NRC REFERENCE VALUE POSSIBLE POSSIBLE RESOLUTION AGREEMENT AGREEMENT A AGREEMENT B l 3 0.4 - 2.5 0.3 - 3.0 No Comparison

! 4-7 0.5 - 2.0 0.4 - 2.5 0.3 - 3.0 l 8 - 15 0.6 - 1.66 0.5 - 2.0 0.4 - 2.5 i 16 - 50 0.75 - 1.33 0.6 - 1,66 0.5 - 2.0 51 - 200 0.80 - 1.25 0.75 - 1.25 0.6 - 1.66 l 200 0.85 - 1.18 0.80 - 1.25 0.75 - 1.33 1

"A" criteria are applied to the following analyses:

Gamma Spectrometry where principal gamma energy used for identification is greater than 250 Kev.

Tritium analyses of liquid samples.

"B" criteria are applied to the following analyses:

Gamma Spectrometry where principal gamma energy used for identification is less than 250 Kev.

89 90 O Sr and Sr Determinations.

Gross Beta where samples are counted on the same date using the same

  • l reference nuclide.

........__.___m.

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GEORGIA POWER COMPANY g-) HATCH NUCLEAR PLANT PAGE 1 OF 9 y, ............m... m.............m......------. ..m.............--......m.... .

DOCUMENT TYPE:

DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCD-029-0 DOCUMENT TITLE: ,,

HAND & FOOT MONITOR HFM-4A OPERATION & CALIBRATION

..__...............................--..... -- __.---......m.--.m........... .

X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: tl/Y

..__..___.....__.......__. .W REV .

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APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE

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62HI-OCB-029-0 a

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2 of 9 HAND AND FOOT MONITOR HFM-4A OPERATION AND CALIBRATION A. PURPOSE To ensure that the instrument is calibrated properly and to provide operation guides to the user.

B. REFERENCE

1. Technical manual for hand and foot monitor, model HFM-4A. l TDCI 0519M C. SAFETY Observe radiation protection procedures.

D. EQUIPMENT

1. P-10 gas (10% methane, 90% argon).
2. Electrostatic voltmeter.
3. Assorted check sources.

E. DESCRIPTION

1. The HFM-4A provides a fast go/no-go indication of beta-gamma contamination on the hands and shoes of personnel. The  !

instrument design allows an individual to monitor himself/herself.

The instrument is entirely digital. All controls are internally mounted. Indications as to the status of the instrument and whether a person being monitored has an

, unacceptable level of radioactive contamination are provided  !

on the front panel by solid state LED's and an audible alarm.

The instrument has three channels, each monitoring beta-gamma radiation. Each channel has a separate alarm switch for beta-gamma. Each channel monitors its own

, background continuously in pre-set time segments while the HFM-4A is unoccupied. The most recent background count is stored in memory and is subtracted whenever someone steps onto the HFM-4A to be monitored.

The electronics of the HFM-4A are solid state, mostly integrated circuits. All major circuits are plug-in circuit boards.

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62HI-OCB-029-0 A(.,) 0 3 of 9

2. Indicators:
a. Front panel, visual
1. Counting background - yellow light-emitting diode.

(LED).

2 Counting activity - yellow LED

3. Recount - red LED
4. OK - green LED.

5 High background - red LED.

6. Fail - red LED 7 Hands beta - gamma - red LED.
8. Left foot beta - gamma - red LED.
9. Right foot beta - gamma - red LED.
10. Inlet gas flow - flow meter (20 - 240 cc/ min.).
11. Outlet gas flow - flow meter (20 - 240 cc/ min.).
b. Front ;anel, aural: The Sonalert " squealer" is actuated when any of the following alarm conditions exists, r~ 1. Recount

(_)g 2. High background

3. Fail
4. Hands beta - gamma
5. Left Foot beta - gamma 6 Right foot beta - gamma The Sonalert also " beeps" (approximately a 300-millisecond tone) when the count - time for a person being monitored is complete and also if the gas inlet pressure falls below the recommended level.
3. Detectors
a. General
1. Window thickness: 3 mg/cm2 aluminized mylar.
2. 4 pi beta efficiency: Approximately 20%
3. Gamma sensitivity: Approximately 50,000 cpm /mr/hr.
4. Counting gas: p-10 (10% methane, 90% argon)

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1 62HI-0CB-029-0

( 0 4 of 9 F. DESCRIPTION OF CONTROLS AND CONNECTIONS

1. Front panel
a. LH (Left hand) Simulate Switch Performs the same function electronically as the switch which is actuated when a hand is inserted into the left hand cavity.

Button must be depressed to accomplish functions used when monitoring right hand only,

b. RH Simulate Switch: Same as above except useo when monitoring left hand only.
c. Gas Flows Screwdriver slot gas flow control valve used in conjunction with the front panel mounted flow meters to set gas flow rate through detectors.
2. Back panel
a. 115/230 VAC Switch Changes the configuration of the power transformer primary as appropriate for the indicated voltage.

() b. Power: Turns instrument ON and OFF.

c. Reset Start: Resets counting circuits to zero and starts new count when CYCLE switch is in the MANUAL position.
3. Internal - Control board (10721-00) 1
a. OPN (operational) MODE switch - determines the channel or combination of channels for which the counting circuitry is active FEET, HANDS OR FEET AND HANDS.
b. MODEL switch - Provides the Logic manipulation required by the instrument. Model switch should be set for

! MODEL "A".

c. CYCLE switch - In the " AUTO" position, all sensor switches are interlocked into the counting l olectronics. In the " MANUAL" position, a new counting cycle is initiated by the RESET - START switch.

l d. DISPLAY switch - Enables operator to choose which channel is displayed on the internal 4 - digit beta -

gamma display. Instrument also designed for ALPHA l detection, but alpha logic has been omitted.

l (~) e. LINE FREQUENCY switch - Selects 50 or 60 Hz as applicable for the incoming line frequency.

l l

62HI-0CB-029-0 0

l 5 of 9

f. COUNT TIME switch - Selects, in the timing circuitry, I the proper output of a " divided - by" counter to provide either a 6 or 30 second count time. i
g. TIME MULT switch - In the X1 position the count time selected by the COUNT TIME switch (above) is '

unaffected. In the X2 position, the count time signal is put through a divide - by 2 counter and either a 12 or 60 second count time is provided. .

4. Internal - Channel Counter Boards (10720-00)
a. BETA - GAMMA ALARM digit switches - set into the counting circuitry, a number which is added to the most recent background count.
5. Internal - Large Mother Board (10731-00)
a. SONALERT switch - in the ENABLE position, 5 VDC is provided to the Sonalert so that when an alarm condition exists and a path to ground is established the Sonalert sounds.

In the OFF position the 5 VDC '

path to the Sonalert is interrupted.

6. Internal - Amplifier / Discriminator Boards (10722-00)
a. ANTI-CON switch - In the IN position this switch controls the output of one section of the amplifier.
b. BETA - GAMMA THLD (threshold) potentiometer - varies the reference voltage at the beta - gamma comparator. '
7. Internal - Small Mother Board j
a. III VOLTAGE switch - determines whether power is  !

supplied to the high voltage power supply. ON or OFF.

b. III VOLTAGE ADJUST potentiometer - changes the output of '

the high voltage power supply.

G. OPERATION OF INSTRUMENT

1. With the power switch in the OFF position, and the AC switch set to the appropriate line voltage, plug the AC power cord into an outlet.
2. Ensure the gas flow is at least 30 cc/ min.
3. Turn !!I VOLTAGE switch on small mother board to the OFF i position. Turn the POWER switch to the ON position.

(])

62HI-0CB-029-0

()

v 0 6 of 9

4. At this time, the FAIL light will como on (due to no high voltage at the detectors) if the HIGH BACKGROUND and RECOUNT lights appear, there is no need for concern. The condition will reset itself after 34 seconds.
5. Turn HI VOLTAGE switch to the ON position, FAIL light should go out.
6. Instrument is now ready for use.
7. Step onto instrument, place hands in hand cavity, and press '

down to start count cycle. COUNTING ACTIVITY L.E.D. should i

be on.

8. At the end of the count cycle, the O.K. L.E.D. Will light and the Sonalert will sound. If contaminated, the " HANDS' or " FEET
  • L.E.D.'s will be on and the Sonalert Will sound. ,
NOTE If contaminated, call Health Physics.

g- H. Weekly Monitor checks V

1. Observe gas flow and record on DATA PACKAGE 1. Flow rate should be approximately 30 cc/ min.
2. Remove top cover or open cover door and place CYCLE switch to the MANUAL position.
3. Adjust TIME MULT switch for a 1 minuto count time. -
4. Prenc RESET button on the rear of the monitor to begin background counts.
5. When the counting light goes out on the front of the monitor, turn the display switch to channel 1 and record results on DATA PACKAGE I as background CPM for hands. Turn display switch to channel 2 and record results as background CPM for left foot. Turn display switch to channel 3 and
record results as background CPM for the right foot.
6. Adjust display switch to channel 1. Place source against i

the centor of the outside left hand detector. Press RESET button. When the counting light goes out record results on DATA PACKAGE 1 in the correct column.

7 Duplicato step 6 for inside left hand, insido right hand, and outsido right hand detector.

4

8. Adjust the display switch to channel 2. Lay the source in the center of the left foot detector. Press RESET button.

When the counting light goes out, record results in the correct column on DATA PACKAGE 1 i

62HI-0CB-029-0 l

() 0 7 of 9

9. Turn display switch to channel 3 and repeat step 8 for right foot detector.
10. Return CYCLE switch to AUTO position and TIME MULT switch for a 6 second count.
11. Step onto the monitor. Observe and ensure counting activity L.E.D. and 0.K. L.E.D. are operational.
12. Step off the monitor and ensure BACKGROUND L.E.D. is operational.
13. Step onto the monitor. Lift left hand before counting time expires. Observe and insure the RECOUNT light comes on.
14. Duplicate step 13 for the right hand, right foot, and left foot.
15. Place source in left hand detector side. Activate counting mode, and ensure alarm and lights comes on for hands.

Record results on DATA PACKAGE 1 Perform the same procedure on the right hanc detector.

16. Remove protective covering from foot detectors and repeat Step 15 for each foot detector.

17 Record alarm set points on channel boards on_ DATA PACKAGE 1

18. Install top cover or close lid and return instrument to service.
19. Replace paper covering on foot detectors if necessary.
20. Complete DATA PACKAGE 1, calculating efficiency of the detectors. It any detector efficiencies are less than 20%

or greater than 50%, repair or replace detector. Allow new detector sufficient purge time. Then repeat section H.

NOTE Alarm set points will be determined by a Laboratory Foreman using 20% worst possible detector efficiency before detector would be changed.

O

t 62HI-OCB-029-0

's_,/ 0 8 of 9 PROCEDURE DATA PACRAGE 1 I

DOCUMENT Nos 42HI.0C3 029-0  !

SERIAL NO: R00 t

MPL H0s RTYPE: 015.14 l'

XREF TOTAL 8HttTS: 2 l

FREQUENCY:

lm I COMPLETED BYs

. \- /

i I DATE COMPLETED 1

! MAVE REV!EWED THIS DATA PACRACE FOR COMPLETEHts!

AND AGAINST ACCEPTANCE CRITERIA IN ACCopDANCE WITN 10AC=MOR=003=0e 30AC=0FS=001-0, 30AC=CF8 003 0.

ACCEPTABLE UNACCEPTABLE f

REVIEWED BY Daft AtV!tWED t

REMARPS:

i i

l Page 1 of 2 I

()

U 42H1=CCB-029=0 h00  !

i FIGURE 1 ,

Page 1 oir 2  ;

l 6:llI-OCD-029-0

O

(_) 0 9 of 9 DATA PACRAGE 1 HFM-4A WEERLY MON! TOR CHECK LOCATION: M.P.L. NO: SERIAL NO:

SOURCE NO: SOURCE D.P.M.

CAS FLOWS cc/ min CAS PRESSURE:

BACRCROUtID CHECKS: ,

1 HAND 3 cpm; LEFT FOOT epal RIGHT FOOT cpm SOURCE CHECFSI SOURCE CPM-BHC O!V!CC SCURCE OPM X 100 . EFP'.

!a;I3 SQLE;E.CH. CPM'ggG.

CPM SQURCC,ggl1,,,LglgClsg,gggg,,g 63y,7,[;,{1;g1[

k.d. 3WI21CE. '

64.d. 1331GC  ! '  !

E..ca.1GE1;E 6 .u. 36121;r '

w&E .EDCT . ...

rs E1;c:.ECC? '

'..........w k.

NOTE

!F DETECTCR EFFICIENCY IS LESS THAN 20% OR CREATER THAtt lot, REPA!R OR REPLACE DETECTOR.

ALAPM CHECF8:

LEFT HAllD ACCEPTABLE UNACCEPTABLE RIGHT HAND ACCEPTABLE UNACCEPTABLE LEFT FOOT ACCEPTABLE UNACCEPTABLE RIGHT FOOT: ACCEPTABLE UNACCEPTABLE COMPLETED BY DATE Page 2 of 2 42H!=0CD 029-0 R00 O

FIGURE 1 Page 2 of 2

_-. .- J t

, GEORGIA POWER COMPANY i HATCH NUCLEAR PLANT PAGE 1 OF 8

%J ______________________________________________. ____________________________

DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-030-0 DOCUMENT TITLE: '

BETA COUNTER MODEL BC-4 X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: ,

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE

_____ _______________________________ ______ ___._____ u____ ______ ___________

0 Replaces HNP-8136 gg

_______h____-_gy g

//

g ._g ___ __ ________

gg 1

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_____ _____________________ ____________ ______ ______________ _________________ 1

%)

) _____

s s

n ___________________________________________________________________________

( MGR-0002 Rev. 1 .

e 2 e e

1 62HI-OCB-030-0 I)*

0 2 of 8 BETA COUNTER MODEL BC-4 A. PURPOSE To insure the instrument is calibrated properly and to provide operation instructions for the user.

B. FREQUENCY

1. Daily Chi-Square Check
2. Quarterly Calibration C. REFERENCE BETA COUNTER MODEL BC-4 Technical Manual TDC #0516M D. SAFETY Observe radiation protection procedures.

E. DESCRIPTION OF INSTRUMENT The Model BC-4-Beta Counter is a system consisting of a two-inch detector, high voltage power supply, pulse amplifier, timer and six decade readout. All circuits are solid state with use of integrated circuits.

F. DESCRIPTION OF CONTROLS

1. EXTERNAL
a. Count Mode - Selects timed or manual counting mode,
b. Reset-Start - Resets all appropriate circuitry to zero and starts a timed counting sequence.
c. Count Time In Minutes - Selects desireo counting time.
d. Power - Supplies power to the instrument.
e. 115 or 230 VAC Switch - Selects either ll5V, 60 Hz, or 230V, 50 Hz. (Set to 115V, 60 Hz)
2. INTERNAL f'} a. Time Base (Timer Board) - Control for ad]usting time

\/ base of the timer when instrument is used with a

battery.

l l

L ____ _ _ _ . _ _ _ . _ _ _ _ _ __

r 62HI-OCB-030-0 N-)) 0 1

3 of 8 G. OPERATION OF INSTRUMENT

1. Be sure the instrument calibration is current.
2. Turn Power Switch to ON.
3. Position Count Mode switch to desired mode.
4. Position Count Time In Minutes switch to counting time desired.
5. Press Reset-Start switch and release. Instrument should begin counting.
6. Daily Calibration,
a. Set Count Mode switch to Manual. Instrument should begin to count. Record results in Man. CK column of Data Package 1 (Data Sheet 1).

- b. Set Count Mode switch to TIMED.

(s

c. Perform a 10 minute background count and record the background counts in C.P.M. on Data Package 1 (Data Sheet 1).
d. Place a radioactive standard in position for counting and count for 5 minutes. Record results on Data Package 1 (Data Sheet 1) in C.P.M.

NOTE A TC-99m beta source centered in a stain-less steel plachet should be used,

e. If count rate is greater or less than 3 sigma in 3 consecutive counts, then a new chi-square must be performed. Record results by entering yes or no in the

+ 3 sigma column of Data Package 1 (Data Sheet 1).

f. Calculate the counter efficiency for the geometry in step d and record on Data Package 1 (Data Sheet 1).

Efficiency = Net C.P.M. X 100 D.P.M.

H. CALIBRATION OF INSTRUMENT

( l. Adjust H.V. to 900 Volts. Refer to technical manual.

CAUTION Do not over-voltage the GM tube. (900 volts)

62HI-OCB-030-0 0 0 4 of 8

2. Chi-Square test (Quarterly test),
a. Perform a one minute background count and record the background counts in BKG. CPM on Data Package 2 (Data Sheet 2).
b. Place a radioactive standard in position for counting.

Use the same standard which will be used in the daily calibration,

c. Count the source for one minute durations twenty times and record net count results on Data Package 2 (Data Sheet 2).
d. Calculate chi-square. If results is between 7 and 35, -

the instrument should be functioning properly.

e. Calcualte 16 , 2g and 3 6 error, s~.

l l

O-

62HI-OCB-030 0 5 of 8 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-030-0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14-XREF:

TOTAL SHEETS: 2 FREQUENCY: Monthly

() COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH

.10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

...____________ .===--- ==- _==.__________ _____________.==- - _ _ _ _ _

() '

62HI-OCB-030-0 R00 FIGURE 1 Page 1 of 2

. . _ . . ._ . . . . . _ . _ . . _ . _ _ _ _ _ _ . - _ . . . . _ _ _ _ _ . _ _ _ . . _ . . _ . . _ , . _ _ . _ . ~ . . . - . _

62HI-OCB-030-0 0

6 of 8 DATA PACKAGE 1 BC-4 DAILY CALIBRATION DATA SHEET 1 Month 19 SOURCE: SER. NO.

ACTIVITY DPM INST. M.P.L. NO: D21-

!. ' COUNT TIME: BACKGROUND - 10 Minutes SOURCE COUNT RATE (II) = CPM

  • SOURCE - 5 Minutes E + 3r= CPh*

n - 3(= CPM

  • OAV DATE MAN SNG. 333tCg gmstCE EFF.

CM. C.P.M. WITHIN i 3 SIGMA REMARMS DOE BY C.P.M. IET C. P . M.

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<  ;'t N DATA SEET 2 (CHI SEJARE TEST) f Page 2 of 2 62HI-OCB-030-0 R00 FIGURE 1 Page 2 of 2 J

e 62HI-OCB-030-0 m

(,,) 0 7 Of 8 PROCEDORE DATA PACKAGE 2 DOCUMENT NO: 62HI-OCB-030-0 SERIAL NO: R00-MPL NO:

l RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: Quarterly

- (g COMPLETED BY:

'J h

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS

-AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE INACCEPTABLE REVIEWED BY:

r DATE REVIEWED:

i i

REMARKS:

i i ... ..__.._____.... ..___. .______._________.._____....._______.._____

Page 1 of 2 O 62HI-OCB-030-0 R00 FIGURE 2 i

Page 1 of 2 i

I

. - . . , .. _... . . . . . - . - _ . . ~ _ . . _ _ . _ . _ . - . . --

62HI-OCB-030-0 0 0 8 of 8 DATA PACKAGE 2 i CHI-SQUARE TEST DATA SHEET 2 l

DATE: BC-4 M.P.L. NO.

j' SOURCE:

COUNTE TIME MIN SOURCE SER. NO.

H. V. SETTING BKG CPM l RUN NO. n* n-H (n-HP6 1

I 2 3

4 r 5 6

7

8 9

l 10 12 13 14 15 l 16 17 .

18 19

, 20 t SUM (E)

[

  • NET COUNTS N og = Xb (Chi-Square) = '=

l -Z(n-n) must be zero X1 must be between 7 6 35 i

j 26=6 += , [= COMPLETED BY: DATE 36 =

% + 16 = li - 16 =

l n + 26 = n - 26 =

n + 36 = H - 36 Page 2 of 2 62HI-OCB-030-0 ROO FIGURE 2 Page 2 of 2 i -. .._. .-.-_

- . - . . . _~ . . - .. ~. ~. - - . - - . - -

t GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PAGE 1 OF 9 g __-__-----____-__--_--------_-----____--___-__________-----___--_-__--_--__

DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-031-0

< DOCUMENT TITLE:

PORTABLE ION CHAMBER MODEL RO-2A OPERATION & CALIBRATION X SAFETY RELATED .

i NON-SAFETY RELATED EXPIRATION DATE: Av/f -

. REV. APPROVED APPROVED EFFECTIVE ,

NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE

.___------_-p_ ---___ ---__J___ -_----_-___ _----.

Replaces HNP-8137 p O g [__

s. q p,__7___g j__ ----.

f g ______-------__-_--__ - _---_----____-__--_____________-__ _---___ _________-.

.  %-) -_-__-______-__________ ___-_______--__--___________-___-_ -___-__--____-__--

b 4

A a

, s i a i

_____--__________-_____ __..______-----_ ___-_-_______-____--_------_-__----__ +

4 J

MGR-0002 Rev. 1 a

+ - . , .-e.- 4-+ .- ---e+.,.--% .,..,,_,e- .

,._v., , . _ . , , y . _ - , . , .- -,y.., ,,e., _~2.-c -r.. 9

t' 62HI-OCB-031-0 0

2 of 9 PORTABLE ION CHAMBER MODEL RO-2A OPERATION AND CALIBRATION A. PURPOSE To insure instrument is calibrated properly and to provide guides for the user.

B. REFERENCES

1. Portable Ion Chamber Model RO-2A Technical Manual, TDC'#538.
2. Gamma Calibrator Procedure.

C. SAFETY Observe Radiation Protection Procedures.

D.- TEST EQUIPMENT

- () 1. Gamma Calibrator.

2. Calibrated Beta Source.
3. 92 mei CS-137 Source.

E. DESCRIPTION OF INSTRUMENT The Ion Chamber, Model RO-2A, is a portable air ion chamber instrument used to detect beta, gamma'and X-ray radiation. The RO-2A has four linear ranges of operation to measure dose rate.

The ion chamber is vented to atmospheric pressure and is specifically region.

designed to have flat energy response into the X-ray F. DESCRIPTION OF CONTROLS

1. Function Switch: Eight position rotary switch that turns the instrument OFF, checks the condition of the batteries, checks instrument ZERO, and selects the range of operation to be used.

4 2.

ZERO Knob: Used to set the meter to zero when ZERO switch position is selected, or when in an insignificant radiation field.

62HI-OCB-031-0 f) a 0 3 of 9

3. Calibration Controls: Four variable resistors, one for each range.

G. OPERATION OF INSTRUMENT

1. Turn the function switch to BAT 1, and then to BAT 2 position. The meter should read above the BATT cut-off line in both cases.

NOTE If BAT check on any range does not indicate good, tag

~ instrument out with TO SHOP tag.

2. Turn the function switch to ZERO position. Check that the meter reads zero. If not, set it to zero with the ZERO knob.
3. Set- the function switch to the desired range of operation.

The switch position selected is the full scale reading of that range.

,_, NOTE When selecting the most sensitive range 50 mr/hr switching transient noise may cause a temporary deflection of the needle. This can be avoided by turning the function switch through the ranges slowly stopping at the 300 mr/hr and letting the needle settle, and then switching to the 50 mr/hr range.

4. When measuring beta or low energy gamma or X-ray emissions, open the sliding beta shield on the bottom of the case and face the bottom of the instrument toward the radiation source. To open or close the shield, depress the friction release button on the left side of the case and manually move the slide or let it fall due to gravity. When the shield is open, protect the thin face against damage by puncture and radioactive contamination.

NOTE The effective center of the ion chamber is marked by dimples at the front and sides of the instrument case.

The zero setting of the instrument may be checked in radiation fields by merely selecting the ZERO position.

Since the ion chamber is vented to atmospheric pressure, it is sensitive to changes in both air pressure and s temperature. Tables 2-1 and 2-2 in the Technical Manual

. .,_) gives correction factors which should be used if the instrument is used in conditions of significant differences from the calibration conditions.

62HI-OCB-031-0 I

V) 0 4 of 9 H. DOSE RATE INTERPRETATION

1. Gamma radiation.
a. When no significant difference is seen in the needle deflection with the beta window open and the beta winoow closed, the radiation should be reported as gamma only. When high gamma dose rates are present low beta dose rates may go undetected unicss a smear is taken and removed from area and surveyed for beta dose rate.
b. When significant differences are seen in the needle deflection with the beta window open and beta window closed, the gamma exposure rate is the meter reading with the beta window shut. The indicated beta exposure is the difference between the reading with the beta window open and closed.

NOTE The meter reading above will reflect true dose rate

-( s,) exposure only for true field dose rate. This is when the intensity of the radiation in all parts of the chamber is practically the same. Small beams, point sources, and small line sources will give meter readings less than actual exposure rates and must be evaluated on an individual basis.

2. Beta radiation.

The beta contact dose rate for a source at least as large as the window on the RO-2A is meter reading window open less meter reading window closed times beta correction factor on the side of the instrument.

NOTE The beta correction factor is only for a source at least as large as the beta window. Sources smaller will have to be evaluated on individual basis.

I. GAMMA CALIBRATION OF INSTRUMENT (Quarterly)

CAUTION The gamma field intensities required for calibration of the RO-2A are potentially hazardous to personnel. Observe i gs precautions to prevent over exposure.

l

62HI-OCB-031-0

("' 0 5 of 9

NOTE It is very important that the inside of the chamber assembly be kept dry to avoid leakage currents due to moisture. If the desiccant becomes saturated and the RO-2A becomes erratic due to moisture, renew the desiccant crystals and cycle 8the instrument between room temperature (or lower) and

+ 140 F. three or four times to flush the chamber air across the desiccant.

CAUTION Avoid any contact with electrical components with the hands as damage to the amplifier will occur.

1. Turn the function switch to BAT 1, and then BAT 2 positions. The meter should read above the BATT cut-off lines in all cases.

NOTE

,_, The entire chamber assembly must be in the gamma field.

s) 2. Turn the function switch to zero, check zero off-set. If not on zero, turn the ZERO knob until the needle comes to the zero position.

3 Turn the function switch to 50 mr/hr, place the instrument in about a 10 mr/hr and 40 mr/hr gamma field respectively, and check the readings. Record the readings on the Instrument Calibration Data Sheet (Figure 1) in the "As Found" column.

4. Turn the function switch to 500 mr/hr. Check zero off-set.
5. Repeat Step I.3 for about 100 mr/hr and 400 mr/hr fields, respectively.
6. Turn the function switch to 5 R/hr. Check zero off-set.
7. Repeat Step I.3 for about 2 R/hr and 4 R/hr gamma field, respectively.
8. Turn the function switch to 50 R/hr. Check zero off-set.
9. Repeat Step I.3 for the 10 R/hr and 40 R/hr gamma field, respectively.

<- 10. If the instrument reads within + 20% of the actual dose rate

(_)s in Step I.3 thru I.9, write all values recorded in the "As Found" column into the "As Left" column, and proceed to Section J.

F l

t l 62HI-OCB-031-0 (m.

s,,) 0 6 of 9

11. If the instrument does not read within + 20% of the actual dose rates in each field, continue with Step I.12.
12. Turn the function switch to 50 mr/hr. Check zero off-set.

Place instrument in about 10 mr/hr and. adjust the 50 mr/hr control resistor until the meter indicates the field reading or + 20% of this value, also check the 40 mr/hr dose rate using a field of about 40 mr/hr. Record meter values in the "As Left" column.

13. Turn the function switch to 500 mr/hr. Check zero off-set.

Place instrument in about 100 mr/hr field and adjust the 500 mr/hr control resistor until the meter indicates the field reading + 20% of this value, also check the 400 mr/hr dose rate. Record meter value in the "As Left" column.

14. Turn the function switch to 5 R/hr. Check zero off-set.

Place instrument in about 2 R/hr and adjust the 5 R/hr control resistor until the meter indicates the field reading or + 20% of this value, also check the 4 R/hr dose rate.

Rec 3rd meter values in the "As Left" column.

() 15. Turn the function switch to 50 R/hr, check zero off-set.

Place instrument in about 10 R/hr and adjust the 50 R/hr control resistor until the meter indicates the field reading or + 20% of this value, also check the 40 R/hr dose rate.

Record meter values in the "As Left" column.

J. BETA CALIBRATION OF INSTRUMENT (Quarterly)

1. Zero RO-2A, place instrument on center of the beta source slab (beta window closed) and measure gamma radiation, record in the "As Found" column. Open beta window (as in G.4) and measure radiation level, record in the "As Found" column. Subtract the gamma reading from the beta, gamma reading. This is the beta indication.

Determine a beta multiplication factor by dividing 230 (Beta slab reads 230 Mrad beta) by the indicated beta dose rate.

Record this value on Figure 1.

After calibration is complete, replace calibration sticker and beta multiplication factor on instrument.

CAUTION When RO-2A needs to be removed from its can, use caution

! when replacing can, beta window on detector can be punctured by the bolt on the tension bar in the can.

)

l l

L

62HI-OCB-031-0 V 0 7 of 9 NOTE When adjusting control resistors is complete, replace caps on resistors while in field so if resistar turns while caps are being replaced causing meter reading to change, it can be determined.

NOTE If changing mylar is necessary on RO-2A, be sure to check mylar with a ohm nieter and put conductive side to the inside of the detector.

(~'r G

V, i

m 62HI-OCB-031-0 U o 8 of 9 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-CCB-031-0 I

SERIAL NO: ROO.

MPL NO: D21-N RTYPE: C15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY:

4 CD DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS '

AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE i

REVIEWED BY:

DATE REVIEWED:

t-REMARKS:

Page 1 of 2 62HI-OCB-031-0 R00 i,

O FIGURE 1 Page 1 of 2 i

4

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1 ___________________________________________________________________________

GEORGIA POWER COMPANY

[J D HATCH NUCLEAR PLANT PAGE 1 OF 5 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-033-0 DOCUMENT TITLE:

USE AND OPERATION OF THE DRAGER MULTI GAS DETECTOR

+ ________________________________-_______________________________-______-___

SAFETY RELATED X NON-SAFETY RELATED EXPIRATION DATE:

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MG DATE DATE 1 _____ _____________________ _________ ,_ ______

_ _ _ _. _ _ _ _ _ /_ R . ___________

0 Replaces HNP-8140 [

_S.a , ?_> __-__/

_ _m_ _ _:_ _ _ _ _v_t_ _Vi__f_l_ _G_2 _//_ __f-

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s t _-________________________________________________________ _________________

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i D ______________--_________________________-______________________ ___________

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MGR-0002 Rev. 1

?

t

62HI-OCB-033-0 0

2 of 5 USE AND OPERATION OF THE DRAGER MULTI GAS DETECTOR A. PURPOSE To provide operating. instructions for operation of the DRAGER MULTI GAS DETECTOR for the measurements of toxic gases, fumes and vapors.

B. SAFETY Observe all Radiation Protection Procedures.

C. REFERENCE Drager Multi Gas Detector Instruction Manual.

D .' DESCRIPTION OF INSTRUMENT The Drager Multi Gas Detector is a manually operated bellows pump which sucks'100 CM3 per stroke. When testing make the number of pump strokes specified in the Operating Instructions for test tube desired.

E. OPERATION OF INSTRUMENT

1. Check the pumps for leaks before each series of measurements by sealing the pump with-an unbroken tube and compressing the bellows fully. If the pump has not expanded fully after 10 minutes the pump is sufficiently air tight.
2. Break off the tips of the tube in the eyelet provided on the pump or use the tube breaker in the kit to prevent the tips from being scattered during_ testing.
3. Tightly insert the tube in the pump head with the arrow pointing toward the pump.
4. Hold the pump with the tube pointed upward with that portion of pump containing the tube between the thumb and index finger.

~5. Fully compress the bellows.

6. Release the bellows. Allow it to expand until the limit chain is taut. This action represents one stroke, o

4

62HI-OCB-033-0 x- 0 3 of 5

7. Repeat steps E.5 and E.6 as often as specifiec in the Detector tube handbook. Consult the Handbook, pages 4 through 6 for the number of strokes for the compound which is being tested.
8. Flush the pump with air by stoking the pump a few times without a tube in place. Do this after each use.

F. OXYGEN DETERMINATION

1. Check the pump for leaks by inserting an open filter tube (white tube) into the pump and connecting it to an unopened black indicating tube by means of the rubber tube.
2. Break off the tips of the indicating tube and join the green ends of the tubes with the rubber tube.
3. Insert the free end of the white filter tube tightly in the pump head of the pump. The arrows on both tubes point toward the pump.
4. Stroke the pump one time then read % 02 from the scale on

/~; the tube.

L/

CAUTION Assure that the white filter tube is inserted into the pump in order to protect the pump against the corrosive hydrogen chloride evolved in the indicating tube. Use the filter tube four times then discard. After each use close the ends of the filter tube with the black caps provided.

G. MAINTENANCE

1. Leaks can unusually be eliminated by clearing the outlet valve. To clean the valve, remove the front plate located opposite the pump head. Raise the valve disc to prevent damage and unscrew the valve using the special wrench.

Clean the valve using air or water. Dry the disc after cleaning if water is used.

2. Replace the valve disc if it is sticky, brittle hard or cracked by pulling the old valve disc out and inserting a new disc. Moistening of the valve pen aids in insertion.

Document replacement on Log Sheet 1.

3. Monthly, clean the wire screen in the pump head. Loosen the two hole nut with the special wrench and remove the rubber

,, stopper. Take out the screen and clean it with a brush

('~)s under running water. Replace the screen and stopper and tighten the nut sufficiently to provide a tight fit for the sample tube. Document cleaning on log sheet one, f

62HI-OCB-033-0 O o 4 of 5

4. Flush the pump with air by stroking the pump a few times without a tube in place. Do this after each use.

i O

l O

l l

l

62HI-OCB-033-0 O o 5 of 5 LOG SHEET 1 REPLACE MONTHLY VALVE DATE CLEANING DISC INITIALS REMARKS O

O

4 GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PAGE 1 OF 6 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-034-0 DOCUMENT TITLE:

MSA COMBUSTIBLE GAS AND OXYGEN INDICATOR MODEL 250 OPERATION AND CALIBRATION SAFETY RELATED E

X NON-SAFETY RELATED EXPIRATION DATE: // /'f ,

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL GR. DATE DATE

__________________________ ________  % ._____ __s ____ _____ __ ___ ____ _____

0 Replaces HNP-8141 _7 M(O C g n/4_ _#________ %____ 9jg jjg sm __________________________ -_________________

is ____________________-_-________

4

-___________________________________________-_____________ ______ -___L______

i.

4 ____. -____________________-_______________________________ ______ __:________

( _____ _____________________________________________-____ -_______________-__ .

1 A. --___ __________________-__-___________-----_----__-_______ --____________-__

O __________________________________________________________-________________

t MGR-0002 Rev. 1 -

L_

62HI-OCB-034-0 v

2 of 6 MSA COMBUSTIBLE GAS AND OXYGEN INDICATOR MODEL 250 OPERATION AND CALIBRATION A. PURPOSE To ensure that the instrument is calibrated properly and to provide operation guides for the user.

B. SAFETY Observe safety rules outlined in Georgia Power Company, Safety, Section "O".

C. REFERENCES

1. M.S.A. combustible gas and 02 indicator instruction manual.
2. M.S.A. calibration test system instructions.

D. TEST EQUIPMENT M.S.A. Model R check kit.

m

() E. DESCRIPTION MSA combustible gas and oxygen indication simultaneously checks oxygen in a range of 0% to 25%, and combustible gas in a range of 0% to 100% of the lower explosive limit (L.E.L.) in air. A battery operated pump is used to draw the sampled atmosphere through the sensing heads of both the combustible gas detector and oxygen indicating portions of the indicator. The indicator is housed in a compact, rugged aluminum housing and is operated on an integral 2.4 volt rechargeable battery pack.

F. DESCRIPTION OF CONTROLS

1. Front indicator panel
a. Combustible gas meter (% L.E.L.), Oto 100%.
b. Oxygen meter (02 ), O to 25%.
c. Battery check switch,
d. Oxygen calibrating control.
e. Flow indicator,
f. On/Off and Zero controls.

LJ

62HI-OCB-034-0

() 0 I 3 of 6

2. Side panels
a. Changing receptacle
b. Inlet coupling
3. Internal controls
a. "L" Potentiometer - Latch control, used to set the desired latching point where the meter will peg and latch in the fixed position,
b. "Z" Potentiometer - Zero control, rezeroes % L.E.L.

scale.

c. "S" Potentiometer - Span, used to adjust meter needle on L.E.L. so it coincides with the valve for the calibrating gas,
d. "C" Potentiometer - Check control, adjusts meter needle to begin at BATT zone.
e. "B" Potentiometer - Balance control, used to adjust the

() needle on the oxygen meter to register 0 on the scale.

G. OPERATION OF THE INSTRUMENT

1. Turn the zero knob clockwise. It will " click" on and energize both meters.
2. Press check button to determine the condition of the battery. For a charged battery suitable for sampling, the needle on the % L.E.L. meter will register in the battery check area (80-100% L.E.L.)
3. Adjust the zero knob clockwise until the needle of the combustible gas meter reads 0.
4. Allow oxygen meter to stabilize, it should read 20.8%. If necessary, adjust the calibration knob to that point.
5. After completing steps 1-4 the indicator is ready for sampling.
6. If a test is made in an area where there is a oxygen deficient atmosphere the % oxygen meter will decrease from 20.8% to the amount present in the atmosphere.
7. If a test is made in an area where the concentration of the

(-} specified flammable gas or vapor is above the predetermined

(/ set. point, the needle will deflect to the extreme right side of the % L.E.L. meter until the meter is manually reset.

e 62HI-OCB-034-0

(~'s

(.) 0 4 of 6 This is a safety feature. To reset the meter, turn the ZERO knob to the OFF position. This releases the needle from its

" latched' position.

CAUTION Under no circumstances should subsequent sampling be made before air.

the instrument is rezeroed in uncontaminated fresh .

H. MAINTENANCE Refer to the MSA conbustible gas and Oxygen Indicator Instrument Manual, Model 250, part no. 45770, page 5-9 for detailed maintenance instructions.

I. QUARTERLY CALIBRATION

1. Turn instrument to the ON position. Press the check button and ensure the battery checks above the battery o.k. line.

If not recharge the battery.

2. Test the operation of the pump, and sample flow indicator by (s) momentarily placing a finger over the sample inlet of the instrument. The flow indicator should be at the top of the window blocked. before and then fall from view while the inlet is If not, refer to section "H" of this procedure for maintenance.
3. Oxygen Indicator Calibration: Turn the instrument on, and allow the % oxygen meter to stabilize. Adjust the 02 calibration knob to 20.8%. Record results in the AS FOUND column on the data sheet. If the % oxygen will not ad]ust to 20.8% continue on the step I-4.
4. Remove the oxygen cell according to the instrument manual.

After the old cell is removed, and before installing the new cell the "zero" of the oxygen indicating meter should be checked as follows:

a. Connect the molded terminal to the battery,
b. Replace the printed circuit board.

(

c. Turn the ZERO knob to the ON position. The needle should register "O" on the scale. If not adjust the "B" potentiometer until "O" on the scale is obtained.
5. Install the new oxygen exit and reassemble the instrument according to the manual.

O('N L.

62HI-OCB-034-0

(~i t/

5 of 6

6. Turn the instrument to the on position. Allow the % oxygen meter to stabilize. Adjust the 02 calibrate knob to 20.8%, and record results in the AS LEFT column on the data sheet.
7. Combustible gas indicator: Turn the instrument on ano adjust the % L.E.L. meter to "O".

8 Attach the flow control to the calibration gas tank, and connect the adapter - hose to the flow control on the model R check kit.

9.

Open the flow control valve connect the adapter hose fitting to the inlet of the instrument, after about 15 seconds record the reading on the % L.E.L. meter in the AS FOUND, column on the data sheet.

10. If the reading on the % L.E.L. was between 34 and 42% record the reading in the AS LEFT column. Replace the calibration sticker with a new one bearing the new expiration date.

11.

If thecontinue I-10 instrument doesI-12.

to step not read within the limits in step

() 12. Turn the instrument off. Remove the side covers.

13. On the printed circuit board turn the "L" potentiometer fully clockwise.

14.

Rotate the position.

12 o' clock zero knob until the marker on the knob is in the

15. Turn the 'Z" potentiometer until "O" L.E.L. meter. is obtained on the %
16. Reconnect the calibration gas. Wait 15 seconds, then adjust the "S" potentiometer until 38% L.E.L.

is obtained. Record results in the AS LEFT column.

17. Remove the calibration gas, and allow the L.E.L. % reach "O". Turn the zero knob until 90% L.E.L.

Slowly turn the "L" is obtained.

potentiometer the L.E.L. meter goes off scale. counter clockwise until

18. Turn the instrument off. Reassemble according to the manual. Remove the calibration sticker and replace it with a new one bearing the new expiration date.

NOTE g3

(_) If after the completing step 13-16 the L.E.L. Will not calibrate, replace the diffusion head and start with step I-13 and continue calibration.

i~

i 62HI-OCB-034-0 l 0 i 6 of 6 INSTRUMENT CALIBRATION DATA SHEET j QUARTERLY j LOCATION

! INSTRUMENT

! SERIAL NO. DATE j MPL NO. CALIBRATED BY

{ CALIBRATION ACTUAL

SOURCE CALIBRATION j GAS ITEMS OF INSTRUMENT READINGS

-READINGS CALIBRATION AS FOUND AS LEFT COMBUSTIBLE GAS INDICATOR OXYGEN

INDICATOR l

J i

j POTENTIOMETERS ADJUSTED MAINTENANCE

!' PERFORMED l REMARKS i

i i

i l

f i

I t

[

t-GEORGIA POWER _ COMPANY

/~

b} ldATCH NUCLEAR PLANT p _________-____________-_____________________ _____-_-_OF PAGE 1 16 uOCUMENT TYPE: DOCUMENT NUMBER:  !

HEALTH' PHYSICS INSTRUMENTATION 62HI OCB 035 0 DOCUMENT TITLE: .

STABILIZED ASSAY METER SAM 2 OPERATION AND CALIBRATION X SAFETY RELATED 1 l

NON-SAFETY RELATED EXPIRATION DATE: M REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE

_______________-_______ ____-______ __ _________4_____ _____-_ ______________

0 Replaces HNP-8142 _ _g h gy g

, a _4__f//- _4 y

(~ _____ __________________ ______________

_________________--_-____________--__ __________________-__-____- _-_a_______

s (s_,/ ______________________________________-_-_______-____-_______-______-______

MGR-0002 Rev. 1

62HI-OCB-035-0

.J 0 2 of 16 STABILIZED ASSAY METER, SAM-2 OPERATION AND CALIBRATION

~

4 A. PURPOSE To establish a standard technique for the operation and calibration of the Eberline Stabilized Assay Meter, Model SAM-2; and provide a method of operation to determine I-131 concentrations in samples.

B. SAFETY

1. Observe safe:y rules outlined in Georgia Power Company SAFETY, Section "0."
2. Observe radiation protection procedures when calibrating the instrument with radioactive sources.

C. REFERENCES

() 1. Stabilized Assay Meter Model SAM-2 Technical Manual.

2. Eberline Instrument Checkout Procedures.

D. TEST EQUIPMENT

1. Electrostatic Voltmeter
2. 100 meg ohm load
3. Mini-pulser, Model MP-1
4. Calibrated Ba-133 source E. DESCRIPTION OF INSTRUMENT

'l.

The SAM-2/RD-22 combination provides a portable gamma spectrometer that has been set up to be used in emergencies for analysis of low volume air samples for I-131 activity.

It provides dual channel analyzer with scaler and ratemeter readout of either channel or scaler readout of the sum or difference of the two channels.

2. Stabilization is obtained from Am-241 doping in the RD-22 detector scintillation crystal, which yields pulses that are

/~ counted'and used to control the high voltage applied to the

'k} detector. This entire system.

maintains a constant gain throughout the

62HI-OCB-035-0

"($) 0 3 of 16

3. A rear panel switch disables the stabilization circuit so the instrument can be used as a conventional scaler-ratemeter-analyzer with other types of detectors.
4. The instrument may be powered either from A.C.~line or an external battery pack.

F. DESCRIPTION OF CONTROLS AND CONNECTORS

1. External Controls
a. DETECTOR: Connection to detector; MHV series coaxial,
b. H.V. ADJUST: Ten turn calibrated dial for setting and changing high voltage when operating in unstabilized mode. Functions as a high voltage limit control when in the stabilized mode.
c. THRESHOLD: Ten turn calibrated dials for setting and changing baseline sensitivity for each channel.

f-)g

(,

d. WINDOW: Ten turn calibrated dials for setting and changing range of pulse heights to be counted for each channel.
e. IN-OUT: Switches to select gross counting (OUT) or PHA (IN) for each channel.
f. +, OFF, -: Switches to select additive, subtractive or non-counting mode for each channel.
g. TIMED-STOP-MAN: Switch to select counting mode,
h. RESET-START: Switch to reset all appro to zero and start a counting sequence, priate circuitry
i. COUNT TIME IN MINUTES: Switches to select desired counting time.
j. RANGE SWITCH: Selects r.ange of rate meter of 500, 5000, 50,000, or 500,000 counts per minute (CPM).
k. CHl, CH2: Switch to select which channel is displayed on rate meter.
1. RESET: Returns meter reading rapidly to zero when depressed.
m. RESPONSE: Controls response time of the meter.

- (' }

n. POWER: Switch to supply power to instrument (rear panel).

62HI-OCB-035-0 r~

.V' 0 4 of 16

o. BATTERY: Connector for plugging in external battery (rear panel),
p. -STABILIZER: Switch selects stabilized or unstabilizec operation (rear panel).
q. DISPLAY ON-OFF: Switch disables digital display to conserve battery.
r. 115-230: Switch selects 115 or 230 VAC operation (underneath chassis).
s. AMP OUT: BNC connector which provides an output for connection to a multichannel analyzer.
2. Internal Controls
a. GAIN (Channel 1 Amplifier Board): Control for adjusting gain of amplifier.
b. TIME (Timer Board): Control to calibrate time base

/3 when operating with external battery.

d c. RATE METER CALIBRATION (Rate Meter Board): Controls to calibrate meter reading,

d. SENSITIVITY (Stabilizer Board): Controls stabilizer setpoint.

G. OPERATION OF INSTRUMENT

1. Verify that the RD-22 detector is properly connected to the SAM-2' detector connector.
2. Connect SAM-2/RD-22 to power supply and turn POWER switch ON (rear panel).
3. Operate STABILIZER switch to ON (rear panel) and set CH1 switches to "IN" and "+."
4. Set CH1 THRESHOLD and H.V. ADJUST to settings determined from last calibration. See label on top of instrument.
5. Set CH1 WINDOW to ".72"
6. Turn CH2 THRESHOLD to "4.0" and place CH2 UINDOW to setting determined on Data Package 3'(Data Sheet 3).
7. Place CH2 switches to "IN" and " " for background subtraction.

EE 62HI-OCB-035-0 0

5 of 16

8. -Set Display ON-OFF switch to "ON".
9. Set desired count time and TIME-STOP-MAN switch to TIME.
10. Place the sample, enclosed in plastic, in the proper geometry'to the detector and press the RESET-START switch.

Note the shelf number on Data Package 1 (Data Sheet 1).

11. When counting is complete, the value in the display is " net" counts for the Iodine activity.

NOTE If negative counts are obtained when counting a sample, CH2 switches must be set to "OUT" and "OFF" causing gross counts to be observed in the display. Recount sample and then substract background found on Data Package 3 (Data Sheet 3) manually to obtain net counts.

12. Using Data Package 1 (Data Sheet 1), calculate the Iodine concentration of the counted sample using the following

(} formulas:.

a. Silver Zeolite Cartridges:

(NET' CPM) (4.5 x E-10)

Iodine Activity (uci/cc) =

(Volume in Liters)(.95)(D.E.)

b. Charcoal Cartridges:

(NET CPM) (4.5 x E-10)

Iodine Activity (uci/cc) =

Volume in Liters)(.99)(D.E.)

NOTE

1. 4.5 x 10"# = conversion factor to get from disintegrations per minute to microcuries.
2. .95 = filter media collection efficiency for silver zeolite cartridges.
3. .99 = filter media collection efficiency for charcoal cartridges
4. Volume in liters of sample = sampling time (min) x flow rate of air sample (LPM)

() 5. D.E. = detector efficiency at specific shelf height

6. Net CPM = Net counts per minute of sample; net counts divided by count' time.

62HI-OCB-035-0 0- 0 6 of 16

13. Operational calibration must be performed DAILY when instrument is in use. -See Section I.

H. CALIBRATION - SEMI-ANNUAL CAUTION High voltage exists in certain internal components, so extreme care should be used when instrument is removed from its case.

1. High Voltage Adjustment
a. Plug instrument into A.C. line and connect a 100 meg ohm load to the DETECTOR connector.
b. Connect a 3KV electrostatic voltmeter to pin A of the High Voltage Power. Supply making certain the High Voltage Power Supply is plugged into its socket.

-(')' c. Operate POWER and STABILIZER switches to ON (rear panel) and check the high voltage output versus the high voltage' settings as indicated below:

HV ADJUST HIGH VOLTAGE 5.0 900 - 1100 volts 10.0 1400 volts or more Record MPL number of electrostatic voltmeter used on Data Package 2 (Data Sheet 2).

d. Set the HV ADJUST control to limit the high voltage at 1500 volts. Record this setting on Data Package 2 (Data Sheet 2) and place a label on instrument bearing this HV ADJUST setting.
2. Calibration of Count Rate Meter
a. Connect an MP-1, Mini Pulser to the DETECTOR connector, setting a pulse height of approximately 300 my and a frequency of 400 CPM. Record serial number of MP-1 on Data Package 2 (Data Sheet 2).
b. Place CH1 switches to "+" and "IN", CH2 switches to "OUT" and "OFF".
c. With the range switch on X1, adjust the X1 calibration t potentiometer on the rate meter board for a reading of 400 CPM on the meter.

62HI-OCB-035-0

.(}

v O 7 of 16

d. Repeat with 4000, 40,000, and 400,000 CPM on the X10, X100, and X1000 ranges respectively. Record results on Data Package 2 (Data Sheet 2).
e. Check linearity at 100, 1000, 10,000, and 100,000 CPM on the respective ranges. Do not record results, but if linearity is not + 10% repeat steps 2a - 2c.
3. Adjustment of Linear Gain
a. Set the CH1' THRESHOLD control to 3.64 and CH1 WINDOW control to 0.1
b. Place CH2 switch to "OFF."
c. Operate the CH1 WINDOW switches to "IN" and "+" and place a Ba-133 source in proper geometry to the detector end face.
d. Adjust the GAIN control on the CH1 amplifier - PHA r- board until the maximum count rate is obtained. Take

(,)3 several 0.1 minute counts to confirm that the 364 kev peak lies between 3.59 and 3.69 THRESHOLD setting. If there is insufficient gain to place the peak at 3.64, adjust the stabilizer SENSITIVITY control CW until the peak is below 3.64, then adjust the GAIN control CW until the peak is approximately 3.64.

4. Threshold Determination
a. Set CH1 THRESHOLD to 2.5 and CH1 WINDOW to 0.1
b. Set CH2 switch to OFF.
c. Place a Ba-133 source in proper geometry to the detector and face.
d. Set count time to 1.0 and TIMED-STOP-MAN switch to TIMED.
e. Do a series of counts advancing the THRESHOLD by increments of 0.1, up to a THRESHOLD of 4.0. Record results on Data Package 2 (Data Sheet 2) and plot data graphically on Data Package 2 (Data Sheet 2a). Plot the threshold settings on the X-axis and counts per minute (CPM) on the Y-axis,
f. Determine the peak THRESHOLD setting from this curve

([']- and then using a WINDOW setting of 0.72, calculate the -

optimum THRESHOLD setting by subtracting one half of the WINDOW setting from the peak THRESHOLD setting.

62HI-OCB-035-0 q

.J 0 8 of 16

g. Place a label showing the optimum THRESHOLD setting and the WINDOW setting of 0.72 on top of the instrument for later reference. Record the optimum THRESHOLD setting on Data Package 2 (Data Sheet 2).
5. Detector Resolution Determination
a. Detector resolution can also be determined by using the curve drawn from the data in step 4e.
b. Determine the peak THRESHOLD setting from this curve and record on Data Package 2 (Data Sheet 2).
c. Determine the THRESHOLD setting at one half the peak count at a THRESHOLD setting greater than 3.69 anc record on Data Package 2 (Data Sheet 2).
d. Figure the detector resolution as follows:

% RES = 2(High setting for 1/2 peak - peak setting)


X 100

./~) Peak Setting C./

e. The resolution should be 15% or less. Record on Data Package 2 (Data Sheet 2).

I. DAILY OPERATIONAL CALIBRATION

1. Verify that the RD-22 detector is properly connected to the SAM-2 DETECTOR connector.
2. Connect SAM-2/RD-22 to power supply and turn POWER switch ON (rear panel).
3. Operate STABILIZER switch to ON (rear panel) and set CH1 switches to "IN" and "+."
4. Set CH1 THRESHOLD and HV ADJUST to settings cetermined from last calibration. See label on top of instrument.
5. Place CH1 WINDOW to ".72".
6. Set CH1 switches to "IN" and "+", and CH2 switches to "OUT" and "OFF".
7. Set Display ON-OFF switch to "ON".

[)

6. Set count time to 1.0 minute and TIMED-STOP-MAN switch to TIMED.

l 62HI-OCB-035-0 0

9 of 16

9. Record a 1.0 minute count of CH1 background at these settings on Data Package 3 (Data Sheet 3).
10. Set CH1 switches to "OUT" and "OFF", and place the CH2 switches to "IN" and "+."
11. Place the CH2 THRESHOLD TO 4.0 and adjust the CH2 window until it equals the background count found in CH1 (The difference between CH1 & CH2 should not exceed 5% if possible.) Record the CH2 window setting on Data Package 3 (Data Sheet 3).
12. Set "CH1 switches to "IN" and "+" and CH2 switches to "IN" and "
13. Place a Ba-133 source in proper geometry to the detector on Shelf 6 3 and count for 5 minutes. Counts observed in the display window represents the NET counts of the source with the background subtracted. Record in counts per minute on Data Package 3 (Data Sheet 3).

NOTE If negative counts are obtained when counting a sample, CH2 switches must be set to "OUT" and "OFF" causing gross counts to be observed in the display. Recount sample and then substract background found on Data Package 3 (Data Sheet 3) manually to obtain net counts.

14. Divide the NET counts per minute of the source by the known disintegrations per minute of the source and multiply by 1.19 to get the efficiency of the detector (D.E.).

. NOTE The 1.19 factor accounts for the difference in yield of the Ba-133 and the I-131 gammas.

15. Repeat steps 11 and 12 with shelves 4 and 5 to obtain a detector efficiency for each of the three shelves.
16. Complete Data Package 3 (Data Sheet 3) on a daily basis, only when SAM-2/RD-22 is in use.

O

\_/

,O 62HI-OCB-035-0

(_) 0 10 of 16 i

1 PROCEDURE DATA PACKAGE 1 i

?

DOCUMENT NO: 62HI-OCB-035-0 i

l SERIAL NO: ROO.

MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: As Required O COMPLETED BY:

v-DATE COMPLETED:

IHAVEREVIEWEDTHISDATAPACKAGEFORCOMPk.'ENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDA!!CE WITH',

10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

4 i

Page 1 of 2 62HI-OCB-035-0 R00 i

FIGURE 1 Page 1 of 2

-- - -e- -,w--,-r w,---w-v+ -, -m-v-,-ere--*y. -r-- ----nu-re- -------v.-, -- - w

s O O J 06IA.gemacg.1 dei 6_MEl.1 EQSIARg.elp SAPet E I DG

  1. C.I CalECTION DATA iPPL SM1PLE LOCATION AIR TIPE (CST)

O. SAMPLE FLOW RATE WI1PE COLLECTED SMIPLE POINT SMPL 04 CFF TIPE (MIN) REMARMS

..--.- _ LPM IN t.ITERS BY n24 TING DATA GQF TITE TOTM MIN PET EFF.

M3.

ACTIVITY JEfeY.6GIlylIY., INITIALS (CST) CGJ4T CID CPM (uct/cc) 4 tR 24 ta

'ROSS IColtE T

= ,,, , ...- CtLLECTION DATA 40 s U

  • Mt SMPt E LOCATICN AIR o 3 O O TIPE (CST) SAPPLE WILtPE j U. SAMPLE POINT SPPL LD4 OFF TIPE (MIN)

FLOW RA1E LPM COLLECTED REMARMS > F3 N c -.... -....

IN LITERS SY j>

W p _ -

y pj -....----- ___......... m >

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EOLt4 TING DATA DE TIPE 2 O TOTAL MIN PET EFF. ACTIVITY EjG6Y.6CIIV[lY_

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62HI-OCB-035-0

() 0 12 of 16-PROCEDURE DATA' PACKAGE 2 DOCUMENT NO: 62HI-OCB-035-0 SERIAL NO: ROO-MPL NO:

RTYPE:, G15.14 XREF:

TOTAL SHEETS: 3 FREQUENCY: Semi-Annual COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 3 62HI-OCB-035-0 R00 FIGURE 2 Page 1 of 3

h

, 62HI-OCB-035-0 s

0

+

13 of 16 DATA PACKAGE 2 DATA SHEET 2 Ih3TRUMENT: SAM-2 LOCATION:

hPL NO.:

i l

I CALIB. ACTUAL DATE: THRESHOLD COUNTS SOURCE COUNT CALIB BY: 2.5 RATE AS FOUND AS LEFT 2.6

CPM CPM CPM 2.I MP-1 400 2.6 SN 4000 2.9 40000 3.0 400000 3.1 3.2 3.3 t l Peak THRESHOLD setting = 3.4 3.5 High THRESHOLD setting for 1/2 peak = 3.6 3.7 3.8 3.9 f 4.0

% RESOLUTION = 2(High setting for 1/2 peak - Peak setting)


x 100

[ Peak Setting

% RESOLUTION =

[ Optimum THRESHOLD setting =

i

{ WINDOW setting =

HV ADJUST setting =

1 MPL Number of electrostatic voltmeter Remarks I

1 i

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Page 2 of 3 62HI-OCB-035-0 R00 O  :

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0 14 of 16 DATA PACKAGE 2 (CON'T)

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62HI-OCB-035-0 s  !

v 0 15 of 16 PROCEDURE DATA PACKAGE 3 DOCUMENT NO: 62HI-OCB.035-0 SERIAL NO: R00 MPL NO:

RTYPE: 015.14 XREF:

TOTAL SHEETS 2 FREQUENCY _ As Required t COMPLETED BY DATE COMPLETED:

! HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10 AC-MGR-003 0, 30AC.0PS.001 0, 30AC-OPS-003 0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

Page 1 of 2 62HI.0CD-035-0 R00

%)

FIGURE 3-Page 1 of 2

62HI-OCB-035-0 V,n\ 0 16 of 16 DATA PACKAGE 3 DATA SHEET 3 SAM-2 DAILY CALIBRATION SOURCE: SERIAL NO.I MONTH 19 _

ACTIVITY DPM INSTRUMENT MPL NO. D21-N (1) DETECTOR EFFICIENCY (D.E.) = Net Counts per minute x 1.19 Disintegration / minute DAY DATE CH2 BKG SOURCE D.E. D.E. D.E. REMARKS COMPLETED WINDOW COUNTS NET SHELF SHELF SHELF BY SETTING / MIN CPM 3 4 5 1

2 3

4 5

6 7

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12 i 13  !

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20 21 22 2J 24 25 26 27 28 29 30 31 Page 2 of 2 p 62HI-OCB-035-0 R00 G

FIGURE 3 Page 2 og 2

GEORGIA POWER COMPANY TN HATCH NUCLEAR PLANT PAGE 1 OF 6 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI

______________________________________________________-OCB-036-0 _____________________

DOCUMENT TITLE:

  • LOW VOLUME AIR SAMPLER MODEL H 809 V1 X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: A REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL GR. DATE DATE 0 Replaces HNP-8143 _((g) _ '__ __t_gd_ _ _ _7_ g b__g_ _y_ _ __g _[_<____

.___.__-___4__

g f, gy i _________

(.[\,) -_...._-______________ .. -__________________

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v

/ ____________________-__________

o

.________________________ _____________ ____________________._____ ___________ s i

i N- MGR-0002 Rev. I e

~

62HI-OCB-036-0 C:) o 2 of 6 LOW VOLUME AIR SAMPLER MODEL H-809 V1 A. PURPOSE To establish a standard technique for the operation and calibration of RADeCO Low Volume Air Samplers.

B. REFERENCES

1. 62RP-RAD-009-0 Airborne Radioactivity Concentration Determination
2. RADeCO Model H-809 V1 Low Volume Air Sampler Operation and Maintenance Manual, TDC # 0506M.
3. RADeCO Air Flow Calibrator Instruction Sheet, Model C-828, TDC # 0506M.

C. SAFETY

1. Observe radiation protection procedures.

O 2. Observe safety rules outlined in Georgia Power Company, SAFETY, Section "O".

D. TEST EQUIPMENT

1. RADeCO Air Flow Calibrator, Model C-828
2. RADeCO Venturi Tube, Air Flow Calibrator Adaptor E. DESCRIPTION OF INSTRUMENT The RADeCO Low Volume Air Sampler is a compact unit usea for obtaining a grap sample of a large volume of air which is monitored for particulate and radioiodine airborne radioactivity. The model H809V1 may De operated at a fixed flow rate or variable flow adjustable between zero and approximately 90% of maximum.

F. ' OPERATION OF INSTRUMENT

1. Remove the outer ring on the sampler head by turning it counterclockwise and install a 47mm glass fiber filter into the holder. Be sure the filter paper seats properly at all points or it may tear the paper. Replace the outer ring by turning it clockwise.

A V

1 L

62HI-OCB-036-0

s 0 3 of 6

2. Open the charcoal cartridge holder by turning the inner ring counterclockwise, and place a charcoal cartridge into the holder, noting the direction of flow through the cartridge.

Replace the inner ring by turning clockwise, and make sure that both rings are securely together and tight.

3. Turn the VAR-OFF-HI switch to the VAR position and ad]ust the flow rate by rotating the control knob labeled FLOW ADJ.

to 3 CFM and note the TIME ON.

4. Allow the sampler to run a minimum of'15 minutes at 3 CFM, then turn sampler off and note TIME OFF.
5. Take the sample collected back to the H.P. office for counting as soon as possible. Place the glass fiber filter in the holder of the counting scaler and count it for 5 minutes.
6. Remove the charcoal cartridge and wrap it in plastic wrap, and label both the filter and the charcoal for counting room analysis.

() 7. Follow instructions as found in 62RP-RAD-009-0 and complete Figure 2 of 62RP-RAD-009-0 using the appropriate formulas given on the bottom for calculations.

G. CALIBRATION The sampler is calibrated once every quarter or more often as needed using the RADeCO Air Flow Calibrator, model C-828.

1. Place a charcoal cartridge in the sampler as though preparing to take a sample.
2. Remove outer ring and place a 47mm glass fiber filter into holder. In place of outer ring, screw the RADeCO Venturi i Tube into it's place.

4

3. Plug sampler in and turn VAR-OFF-HI switch to HIGH and allow a warm-up time of 2 minutes.
4. Connect the Venturi Tube to the VAC outlet of the Air Flow Calibrator, making certain the INTAKE on the calibrator is open.
5. Indicate the reading on the rotometer and the flow guage calibrator on Data Package 1 in the As Found section on the first line labeled "High".

, ( -

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I

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4 of 6

6. Switch the " Var-Off-High" switch to Var and then adjust the control knob labeled " Flow Adjust: until the flow guage calibrator reads 3 CFM. Indicate the reading on the rotometer and the flow guage calibrator on the second line in the As Found section of Data Package 1.
7. If the readings on the flow calibrator and the rotometer are 3 CFM + .3 CFM then record the readings on the second line in the As Left section and skip to step 10.
8. If the observed reading on the rotometer is not 3 CFM + .3 CFM then loosen the retaining lock on the rotometer and adjust the adjusting screw until 3 CFM + .3 CFM is observed on the rotometer.
9. With the sampler still operating, tighten the adjusting lock nut being careful not to move the flow adjust screw.

Observe the flow on the rotometer and assure that it still reads 3 CFM. If the reading changed, steps 8 and 9 will have to be repeated. Indicate the results in the As Left section on Data Package 1 on the second line (marked 3 CFM).

( ]) 10. Switch the " Var-Off-High" switen.to High and observe the readings on the rotometer and the flow guage calibrator.

The readings should be within 10% of each other. If they are within 10%, then record the readings on the first line in the As Left column on Data Package 1. If the reacings are not within 10%, it means the rotometer is not working properly and repairs should be initiated. Record the repairs performed on the bottom of Data Package 1 in the Maintenance Performed section. After maintenance is complete, repeat the calibration at step G.

11. Remove the venturi tube and the flow calibrator from the sampler. Replace the calibration sticker with a new one bearing the next quarterly calibration due date and indicate on Data Package 1 all repairs and ad]ustments made.

i O

1 62HI-OCB-036-0 0

5 of 6 PROCEDURE DATA PACKAGE 1 l

DOCUMENT NO: 62HI-OCB-036-0 SERIAL NO: ROO-l l

MPL NO: i l

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY:

COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

i ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

1 1

t Page 1 of 2 62HI-OCB-036-0 R00 FIGURE 1

Page 1 of 2

, . - . . . , , - . , - - . . . - . . - . - - , _ - - - , - - - , , - - - , , - . . , , , - - - , ,--. -..~._ - -..- - -.-- - ,-- ---,,...- - ,

62HI-OCB-036-0 h

U 6 of 6 DATA PACKAGE 1 (Data Sneet 1)

RADeCO H.809 V1 CALIBRATION SHEET M.P.L. NUMBER SERIAL NUMBER AS FOUND ROTOMETER FLOW CALIBRATOR CFM WITH GLASS AND CHARCOAL (HIGH)

CFM WITH GLASS AND CHARCOAL (AT 3 CFM)

AS LEFT ROTOMETER FLOW CALIBRATOR CFM WITH GLASS AND CHARCOAL (HIGH)

CFM WITH GLASS AND CUARCOAL (AT 3 CFM)

TEST EQUIPMENT USED
MPL (FLOW METER) i MAINTENANCE PERFORMED:

}

i LOCATION: CALIBRATED BY:

DATE:

Page 2 of 2 62HI-OCB-036-0 ROO FIGURE 1 Page 2 of 2

t GEORGIA POWER COMPANY.

km_)l HATCH NUCLEAR PLANT PAGE 1 OF 7 DOCUMENT TYPE:

DOCUMENT NUMBER:

. HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-03

____-___-__________________________________--_________________7-0 -___---_-__-_

DOCUMENT TITLE: ..

GEIGER COUNTER MODEL E530N OPERATION / CALIBRATION SAFETY RELATED X NON-SAFETY RELATED EXPIRATION DATE: / /b

_REV___________--_-__________-______________-______________ _

APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL DATE DATE

_____________________ ___________ ._____ ___ _____MGR.

0 Replaces HNP 8144 4

_____ _____-_-__-____________g __ ___-___ _g g, _ _ _y_ _ _ _ _g ;jg _4__ g _j-a 1

L_______-______-______________________________-____-_________-__

MGR-0002 Rev. 1

62HI-OCB-037-0 (2) 2 of 7 GEIGER COUNTER MODEL E530N OPERATION / CALIBRATION A. PURPOSE To ensure the instrument is calibrated properly and to provide guides for the user.

B. SAFETY Observe Radiation Protection Procedures.

C. REFERENCES

1. 162HI-OCB-017-0, Gamma Calibrator (Cs 137)

-2. E530N Tech Manual

3. 92 mci Cs 137 Source D. TEST EQUIPMENT fs 1. Gamma Calibrator b 2. Electrostatic Volt Meter E. DESCRIPTION OF INSTRUMENT
1. The model E530N provides a large, ruggedized meter with exceptional readability _and linearity with variable response time.

The instrument uses two standard "D" cell batteries which offer extended life due to high efficiency circuits.

A rotary switch combines the functions of power switch, battery check and selection of.one of the four sensitivity ranges. The amplifier driven phone output may be used with a SK-1 speaker.

Instrument ranges are as follows:

X 0.01 Full Scale = 0.02 R/hr X 0.1 Full Scale = 0.2 R/hr X 1.0 Full Scale = 2 R/hr X 10 Full Scale = 20 R/hr O

62HI-OCB-037-0

([)

3 of 7 The instrument is normally connected to a HP-220A halogen quenched GM tube housed in a specially designed hemispherical tungsten alloy shield. The instrument probe is highly directional and the operator is able to obtain directional information or to monitor a specific object and reject background.

2. Specifications (detector):
a. Operating voltage: 600 + 50 volts
b. Housing: 0,1 inch thick steel on unshielded side. 1 1/4 inch radius tungsten alloy hemisphere on back side
c. Tea:perature Range: -40 degrees F to 160 degrees F
d. Cornector: Teflon insulated BNC series coaxial
e. Weight: 5 3/4 pounds F. OPERATION OF INSTRUMENT ,

() 1. Turn the function switch to BATT position. The pointer should indicate within the BATT-OK region on the meter face..

NOTE If the pointer does not indicate OK, tag the instrument out with a TO SHOP tag.

2. ODserve calibration date. Do not use the instrument if it is out of calibration. Use & TO SHOP tag if it is out of calibration.

NOTE Do not use the instrument to set cose rates for stay times in radiation controlled areas.

3. Turn tne function selector switch to the desired range of operation. The switch position selected is the full scale reading of tnat range.
4. When using the meter, face the bottom of the detector toward the object of interest. When finished surveying the area of interest, survey the area oehind the cetector ror nackground readings.

O

62HI-OCB-037-0

(_) 0 4 of 7 NOTE This instrument and detector are specially made for locating Hot Spots and directional beams.

It should be used for this purpose only.

5. Upon completion of the survey of instrument should be turned off and placed back into its storage location.

G. CALIBRATION OF INSTRUMENT NOTE Calibration frequency is once per six months.

1. Remove old calibration sticker.
2. Turn range selector switch to BATT and observe pointer. If pointer does not indicate within the BATT OK region on the meter face, change out batteries. _

(m,) 3. Remove instrument from the instrument can.

4. Check the high voltage. High voltage should De 600 volts =

50 volts. There is no high voltage adjustment. If voltage is too high or low, replace the high voltage transformer (Microtran M7120 or M8050).

5. Turn the range selector switch to X .01 R/hr. Place the detector in a 5 mr/hr Cs 137 field and 15 mr/hr field respectively, and check the reading. Record the reading on Data Sheet 1 Instrument Cal Data Sheet in the "AS FOUND" column.
6. Turn range selector switch to X.0.1 R/hr.
7. Repeat step G.5 for 50 mr/hr and 150 mr/hr respectively.
8. Turn range selector switch to X 1.0 R/hr.
9. Repeat step G.5 for 500 mr/hr and 1500 mr/hr respectively.

lu. Turn range selector switch to X 10 R/hr.

11. Repeat step G.5 for 5000 mr/hr'and 15,000 mr/nr respectively.
12. If the instrument reads + 20% of the actual dose rates in steps G.5 through G.11, write all values found in the "As

('#')

LEFT" column, and proceed to section G.16.

62HI-OCB-037-0 0

5 of 7

13. If the instrument does not read + 20% of the actual dose rate in each field, continue witE step G.14.
14. Turn the range selector switch to the affected scale (s) ano adjust.the proper control resistor until all readings are within the + 20% tolerance for all values.
13. Record all readings in the "AS LEFT" column. Record all adjustments in the " REMARKS" column.
16. Place instrument back into the can.
17. Replace calibration sticker stating when the next six (6) month calibration is due and date and initials of persons performing the calibration.

.( )

D 9

O

62HI-OCB-037-0 V 0 6 of 7 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB.037 0 SERIAL NO: ROO.

MPL NO: D21-N RTYPE: G15.14 XREF: E530 N TOTAL SHEETS: 2 FREQUENCY: SEMI-ANNUALLY

,w COMPLETED BY -

i

'w/

DATE COMPLETED I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-CPS-001-0, 30AC-OPS-003-0.

ACCEPTANCE UNACCEPTABLE REVIEWED BY DATE REVIEWED:

REMARKS Page 1 of 2 62HI-CCB-037-0 R00

[}

FIGURE 1 Page 1 of 2

62HI-OCB-037-0 m . 0 O' \

7 of 7 DATA PACKAGE 1 (DATA SHEET 1)

INSTRUMENT CALIBRATION SHEET INSTRUMENT: E530N INSTRUMENT'MPL # D21-N DATE:

INSTRUMENT SERIAL # CALIO. BY:

CALID ACTUAL AS FOUND AS LEFT TOLERANCC f. 20%

SOURCE DOSE RANGE RATE 5 mr/hr mr/hr mr/hr 5 mr/hr 4 to E. mr/hr 15 mr/hr mr/hr mr/hr 15 mr/hr 12 to 18 mr/l.c 50 mr/hr mr/hr mr/hr 50 mr/br 40 to 00 mr/l.r 150 mr/hr mr/hr mr/hr 150 mr/hr 120 to 130 mr/tr 500 mr/hr mr/hr mr/hr 500 mr/hr 400 to E.CO mr/hr 1500 mr/hi mr/hr mr/hr 1500 mr/hr 1200 to 1200 mr/hr --

(J) .___..

5000 mr/hl mr/hr mr/hr 5000 mr/hr 4000 to 6000 mr/hr 15000 mr/hr mr/hr mr/hr 15000 mr/hr 12000 to 18000 mr/hr REMARKS:

Page 2 of 2 62HI-OCS-037-0 R00 i

r .

k FIGURE 1 t

Page 2 of 2 I

~

J '

I\'). GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PAGE 1.OF 9 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-038-0 ..

DOCUMENT TITLE:

PORTABLE ION CHAMBER MODEL RO-4A OPERATION / CALIBRATION X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: /Y <#

REV.

APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE DATE GENERAL M,GR. DATE O Replaces HNP-8145 I

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L MGR-0002 Rev. 1 -

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62HI-OCB-038-0 r~'s 0 0 2 of 9 PORTABLE ION CHAMBER MODEL RO-4A OPERATION / CALIBRATION A. PURPOSE To ensure the instrument is calibrated properly and to provide guides for the user.

B. SAFETY Observe Radiation Protection Procedures.

C. REFERENCES

1. Gamma Calibrator Proceuure, 62HI-OCB-017-0
2. Eberline Corp. Check Out Procedures
3. -RO-4A Technical Manual D. TEST EQUIPMENT 7, 1. Gamma Calibrator O 2. Calibrated Beta Source
3. Cs l07'00 Source
4. Depleted Uranium - Beta Source #U235-6 E. DESCRIPTION OF INSTRUMENT The RO-4A is a portable air ion chamber used to measure beta, gamma, and X-ray radiation. The RO-4A has two linear ranges of operation to measure dose rates. The RO-4A is vented to atmospheric pressure and is designed to have flat energy response into the X-ray region. The model RO-4A is sensitive to beta, gamma, and X-ray radiation and is calibrated to beta and gamma radiation. A single rotary switch turns the instrument off, checks zero setting, and selects range of operation.

F. DESCRIPTION OF CONTROLS

1. Function Switch Four position rotary switch that turns the instrument OFF, checks instrument ZERO, and selects the range of operation.
2. Zero Knob C)

(- Used to set the LCD display to zero when the Zero switch position is selected.

T -m

i 62HI-OCB-038-0

. (~~'i 0

\s/

3 of 9

3. Calibration Controls Two variable resistors, one for each range.
4. Light Button When the LIGHT button is depressed, the lamp inside the LCD will come on.
a. In the mr/hr range full scale reading is 1999 mr/hr.

When 1999 mr/hr is exceeded, the LCD will display a 1 (one) in the far left side of the meter and all blanks to the right of the 1 (one),

b. In the R/hr range the full scale is 199.9 R/hr. If this scale is exceeded, the LCD display will display a 1 (one) in the far left of the LCD readout and all blanks to the right of the 1 (one).

G. OPERATION OF INSTRUMENT rs 1. -Observe cal sticker. Ensure the instrument is calibrated.

t

2. Turn the range selector switch to the ZERO position. Adjust the ZERO KNOB until the LCD display reads 000.
3. If the batteries are low, a star will be displayed on the LCD display in the upper left hand corner.
4. When measuring beta or low energy gamma or X-ray emissions, open the sliding beta shield on the bottom of the case and face the bottom of the instrument toward the radiation source. To open or close the shield, depress the friction release button and let the beta shield slide open. Protect the thin face against damage by puncture and radioactive contamination.

NOTE l

i The effective center of the ion chamber is marked by dimples at the front and sides on the instrument case. The zero setting of the instrument may be checked in a radiation field by selecting the ZERO position.

I

\_/

62HI-OCB-038-0

/~1

'd 0 4 of 9 H. DOSE RATE INTERPRETATION

1. Gamma Radiation
a. When no significant difference is seen with the beta window open and the beta window closed, the radiation should be reported as gamma only. When high gamma dose rates are present, low beta dose rates may go undetected unless a smear is taken and removed from area and surveyed for beta dose rate,
b. When significant differences are seen with the beta window open and beta window closed, the gamma exposure rate is the meter reading with the beta window shut.

The indicated beta exposure is the difference between the reading with the beta window open and closed.

NOTE The meter reading above will reflect true dose rate exposure

() only for true field dose rate.

This is when the intensity of the radiation in all parts of the chamber is practically the same. Small beams, point sources, and small line sources will give meter reading less than actual ex-posure rate and must be evaluated on an individual basis.

-2. Beta Radiation The beta contact dose rate for a source at least as large as the window on the RO-4A is meter reading window open less the meter reading window closed times beta correction factor on the side of the instrument.

I. GAMMA CALIBRATION OF INSTRUMENT (Quarterly)

CAUTION The gamma field intensities required for calibration of the RO-4A are potentially hazardous to personnel. Observe precautions to prevent overexposure.

62HI-OCB-038-0 0

5 of 9 NOTE It is very important that the inside of the chamber assembly be kept dry due to avoid leakage currents due to moisture. If the desiccant becomes saturated the RO-4A becomes erratic due to moisture, renew the desiccant crystals and cycle the instrument .

between room temperature (or lower) and + 1400 F three or four times to flush the chamber air across the desiccant.

CAUTION Avoid any contact with electrical components with the hands as damage to the amplifier will occur, l.-

Turn thereads display function zero.selector switch to ZERO and ensure the LCD

)

2. Ensure the low battery light on the display is not on.
3. Turn the range selector switch to the mr/hr range, place the instrument in about a 50 mr/hr-and 150 mr/hr gamma field respectively, and check the meter readings. Record readings on the Instrument Calibration Data Package 1 (Data Sheet 1).
4. Turn the range selector switch to the R/hr range. Place the instrument in about a 50 R/hr ar.d 150 R/hr gamma field respectively, and check the meter readings. Record the readings on the Instrument Calibration Data Package 1 (Data Sheet 1) in the "As Found" column.
5.

If the instrument reads within + 20% of the actual dose rate in step I.3 thru I,4, write all valves recorded in the "As Found" column and proceed to Section J.

6.

If the instrument does not read within + 20% of the actual values in each field, continue with Step I.7.

7. Turn the function selector switch to the mr/hr range. Place instrument in aoout 50 nr/hr-field and adjust the control resistor on whichboard.

the-circuit is located nearest the nose of the instrument Adjust this resistor until the meter

( ); indicates the field reading + 20% of this value. Check the 150 mr/hr reading and ensure its + 20% of the true field reading. Record meter readings in the "As Left" column.

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62HI-OCB-038-0

['I

%,i 6 of 9

8. Turn the function selector switch to the R/hr range. Place the instrument in about a 50 R/hr field and adjust the control resistor which is located nearest the back of the instrument.

NOTE The dose rates used to calibrate the R/hr scale are very high.

The instrument must be taken out of the field and then the resistor turned and then the instrument put back into the field and checked,

a. Adjust the R/hr resistor until the meter indicates the field reading of 1 20% of this value. Check the 150 R/hr reading and ensure its i 20% of the turn field reading.

Record meter readings in the "As Left" column.

J.

BETA CALIBRATION OF INSTRUMENT (Quarterly)

1. Zero RO-4A, place instrument on center of the beta source slab (beta window closed) and measure gamma radiation,

/~N h- record in the "As Found" column. Open beta window (as in G.4) and measure radiation level, record in the "As Found" column. Subtract the gamma reading from the beta, gamma reading.

This is the best indication.

Determine a beta multiplication factor by dividing 230 (Beta slab reads 230 Mrad beta) by the indicated beta dose rate.

Record this value on Data Package 1 (Data Sheet 1).

After calibration is complete, replace calibration sticker and beta multiplication factor on instrument.

CAUTION When RO-4A needs to be removed from its can, use caution when replacing can, beta window on detector can be punctured by the bolt on the tension bar in the can.

NOTE When adjusting control resistors is complete, replace caps on resistors while in field so if f-s resistor turns while caps are

( being replaced causing meter reading to change, it can be determined.

-...-..,p,_. . .~ .- .- - . - _ - - . - - - - - . - . - - . . . _ _ . , . - . . . . . . . . . . - - - . . . . . . . . .

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4 NOTE f

If changing mylar is necessary on 3

RO-4A, be sure to check mylar with an ohmmeter and put conductive i

i' side to the inside of the detector.

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62HI-OCB-038-0 O O Q-8 of 9 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-038-0 SERIAL NO: ROO-MPL NO: D21-N RTYPE: G15.14 XREF: RO-4A I

TOTAL SHEETS: 2 FREQUENCY: Quarterly COMPLETED BY:

-Q

. \J DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

}

Page 1 of 2 62HI-OCB-038-0 R00 FIGURE 1 Page 1 of 2 L.

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I 62HI-OCB-038-0 (t')

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0 9 of 9 DATA PACKAGE 1 (Data Sheet 1)

INSTRUMENT CALIBRATION DATA SHEET INSTRUMENT: RO-4A INSTRUMENT SERIAL NO. INSTRUMENT MPL NO. D21-N

...__._ - _ . . _ _ _ _ _ _ _ _ _ . = - - - - - - - - _ _ _ _ _ _ . _ . . . . . _ _ _ _ _ _ . _ _ _ . _ _ _ _ . - _ _ _ _ . .

CAL. AS AS SOURCE ACTUAL DOSE RATE FOUND LEFT TOLERANCE

.__.____.___---=_ -==.__-__. .___._____.. .....____..........__..____..

50 mr/hr mr/hr mr/hr 40 to 60 mr/hr

.__.____..____-___._________________- =- ._ - __.._____..._____._____.

150 mr/hr mr/hr mr/hr 120 to 180 mr/nr 50 R/hr R/hr R/hr 40 to 60 R/hr

___. ___._-=_ __ =-.___________. ____.... ..... ____...______...___ ...

150 R/hr R/hr R/hr 120 to 180 R/hr

. _ - _ - _ - _ . - _ - - _ . . _ _ . . - _ _ _ . - _ - _- _ = = . _ _ . . . . - _ . . . _ - - - - - - -=_-_...____.

BETA GAMMA _ GAMMA = BETA 230  % ~= BETA CORRECTION FACTOR

_==__-____-__.___________-----_=_-...._______. _

Maintenance Performed, Remarks:

DATE CALIBRATED CALIBRATION PERFORMED BY DUE FOR CALIBRATION AGAIN Page 2 of 2 62HI-OCB-038-0 R00 p)

\,_.

FIGURE 1 Page 2 of 2

t GEORGIA POWER COMPANY

- O4 HATCH NUCLEAR PLANT PAGE 1 OF 11 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-040-0 DOCUMENT TITLE:

LUDLUM MICRO R METER /MODEL 12S X SAFETY RELATED .

NON-SAFETY RELATED EXPIRATION DATE: etI AI REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE

_________7_ __' ____ _____ ______ ___________

0 Replaces HNP-8147 kl0 ' i g ,;y _

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l'M 62HI-OCB-040-0 LJ o

2 of 11 A

LUDLUM MICRO R METER /MODEL 12S A. PURPOSE To establish a standard technique for operation and calibration of the Model 12S Micro R meter.

B. REFERENCES

1. Ludlum Micro R Meter Tech Manual.
2. Mini Pulser Model MP-1, 62HI-OCB-018-0.

C. SAFETY Observe radiation protection procedures.

D. TEST EQUIPMENT

1. Gamma Source (Cs 137 8 uCi) k .2. Mini Pulser i

I 3. Am 241 0 Check Source

4. Volt Meter E. DESCRIPTION OF INSTRUMENT The Model 12S Micro R Meter utilizes an internally mounted 1" x 1" Na (TI) scintillation detector which offers optimum performance in counting low level gamma radiation.

4 1. Specifications

a. The instrument uses two standard "D" cell batteries, battery life exceeds 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> when using standard "D" cell batteries.
b. Linearity is plus or minus 5% full scale.
c. High voltage can be varied from 400 to 1500 volts DC.
d. Calibration stability is less than 5% variance to battery end point.
e. Audio output consists of a built in unimorph speaker

('%

s_) with an ON-OFF switch provided on the front panel.

,n 62HI-OCB-040-0 k-) 0 3 of 11

f. Counting ranges are derived from a 3 micro R/hr scale with four range multipliers of X 1000, X 100, X 10, and X 1.
g. Detector consists of an RCA 6199, coupled to a 1" x 1" NaI(TI) scintillator, mounted inside the instrument housing.

F. DESCRIPTION OF CONTROLS AND FUNCTIONS

1. Range multiplier selector switch is a six (6) position switch marked OFF, BAT, X 1000, X100, X10, X1. Turning the switch from OFF to BAT position provides the operator a battery check of the instrument. Moving the range selector switch to one of the range multiplier positions provides the operator with an overall range of 0 to 3000 micro R/hr.

Multiply the scale reading by the multiplier for determining the actual scale reading.

2. Audio On-Off toggle switch in the ON position operates the speaker. The frequency of the clicks is relative to the

(,D

'~# rate of the incoming pulses. The audio speaker should be

turned off when the instrument is not being used.
3. Fast-Slow toggle switch provides meter response. Selecting the "F" position provides 90% of full scale readings of the meter in 3 seconds. In the "S" position, 90% of full scale meter deflection takes 11 seconds. The "S" position should be used for slow response and damped meter deviation.
4. RES button when depressed provides a rapid means to drive the meter downscale to zero.
5. Range calibration adjustments are recessed potentiometers located on line with each multiplier position. The adjustments control allow individual calibration for each range.
6. Gain adjustment allows the input sensitivity to be adjusted 30 to 100 mvolts. Normal gain is set at 40 mvolts.

G. OPERATING

1. Observe calibration sticker and ensure the meter has a current calibration, if not, do not use the meter. Tag it out with a To Shop tag.
2. Turn the selector switch to BAT position and ensure the g-)s s_ meter pointer indicates in the OK BAT position. If not, tag it out.

t

62HI-OCB-040-0

/~)T L 0 4 of 11

3. Turn instrument range switch to X 1000. Expose the detector to a check source. Ensure the instruments reads 1500 to 2500 ur/hr with an 8 uCi Cs 137 check source and record information on Data Package 1 (Data Sheet 1).
4. When performing a survey, the response switch should be placed in the "S" position.
5. When surveying with the meter, place the instrument bottom close (1") to the material being surveyed and survey slowly.

H. CALIBRATION NOTE Calibration is yearly.

1. Pulsing
a. Remove old calibration sticker.

(~y b. Turn range selector switch to BAT and ensure pointer is s_j in the BAT OK region. If not, replace batteries.

c. Turn down the high voltage to zero.
d. Set the Mini Pulser to 40 Mv.
e. Connect Mini Pulser to instrument and turn on Micro R Meter to the X 1000 scale,
f. Turn on Mini Pulser to 400 k cpm.
g. Adjust gain control so instrument starts pulsing at 40 Mv.

h .~ Lock gain control.

i. Set the Mini Pulser to 80 Mv.
j. Adjust Mini Pulser to 400,000 cpm.

NOTE 400,000 cpm = 2,220 ur/hr 40,000 cpm = 220 ur/hr 400 cpm = 22 ur/hr 40 cpm =

2.2 ur/hr r%

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62HI-OCB-040-0

'('

f-0 5 of 11

k. Observe meter reading. Meter should read 2.220 ur/hr.

If not, adjust X 1000 range on Micro R Meter.

1. Repeat the above, decreasing the pulser by a factor of 10 each time. Record information on Data Package 2 (Data Sheet 2).
2. High Voltage Adjustment
a. Connect electrostatic volt meter to the Micro R Meter.
b. Adjust voltage up to 500 volts.
c. Observe Micro R Meter reading, record bkg readings,
d. Adjust voltage up in steps of 50 volts until 1000 volts is obtained.
e. Decrease voltage back to 500 volts.

,_ f. Attach Am 241 0 source to the end of the detector.

g. Observe Micro R Meter readings and record source count rate.
h. Repeat Step f. above until 1000 volts are obtained, t

Bring voltage up in steps of 50 volts.

i

i. Place instrument back into the can.

I

j. Plot background and source count rate vs. high voltage on Data Package 3 (Data Sheet 3). Determine optimum High Voltage and record on Data Packages 2 and 3 (Data

, Sheets 2 and 3),

k. Place an 8 uCi Cs 137 check source to the bottom of the instrument and record dose rate. Should be between 1500 and 2500 mr/hr. Record on Data Package 3 (Data Sheet 3).
1. Notify foreman of completion of procedure for review and approval.
m. Plot graph.
n. Replace calibration sticker stating next yearly I calibration.

i

() o. If instrument can't be calibrated, return to vendor for repair.

L

u ex 62HI-OCB-040-0 0

6 of 11 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-040-0 SERIAL NO: ROO-

  • MPL NO:

RTYPE: G15.14 XREF: N/A TOTAL SHEETS: 2-FREQUENCY: AS REOUIRED COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY

DATE REVIEWED:

REMARKS:

i.

f ..

l

(

1 Page 1 of 2 62HI-OCB-040-0 R00

FIGURE 1
Page 1 of 2 e

5_

62HI-OCB-040-0 0

7 of 11 DATA PACKAGE 1 DATA SHEET 1 INSTRUMENT SOURCE CHECK SHEET INSTRUMENT SERIAL NO.

KNOWN SOURCE READING TODAY DATE READING WITH SOURCE REMARKS COMPLETED BY 1500 to 2500 ur/hr O

Page 2 of 2 62HI-OCB-040-0 R00 O

FIGURE 1 Page 2 of 2

62HI-OCB-040-0

( s/ 0 8 of 11 1

..-........................--....----.....--..........===____....... 3 PROCEDURE DATA PACKAGE 2 DOCUMENT NO: 62HI-OCS-040-0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 4

XREF: N/A TOTAL SHEETS: 2 FREQUENCY: ANNUALLY i

() COMPLETED BY:

DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH

'10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

62HI-OCB-040-0 R00

[}

FIGURE 2 Page 1 of 2

I l

i 62HI-OCB-040-0

( 0

? of 11 DATA PACKAGE 2 DATA SHEET 2 PULSER CALIBRATION FOR MICRO R METER MICRO R METER SN MICRO R METER MPL D21-N PULSER SETTING ur/hr RANGE SHOULD READ AS FOUND AS LEFT TOLERANCE 400K cpm X 1000 2.220 ur/hr 1776 to 2664 40K cpm X 100 220 ur/hr 176 to 264 4K cpm x 10 22 ur/hr 17.6 to 26.4 400 epm x1 2.2 ur/hr 1.76 to 2.64 ADJUSTMENTS?

Eight uCi Cs 137 source reading ur/hr p\,)

  • Gain Control Setting MV
    • High Voltage Setting
  • Should be 80 My

FIGURE 2 Page 2 of 2

62HI-0CB-040-0 0

10 of 11 PROCEDURE DATA PACKAGE 3 DOCUMENT NO: 62HI-OCB-040-0 SERIAL NO: ROO-t MPL NO:

RTYPE: G15.14 XREF: N/A TOTAL SHEETS: 2 FREQUENCY: ANNUALLY l

COMPLETED BY:

DATE COMPLETED:

(

t I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE REVIEWED BY:

DATE REVIEWED:

REMARKS:

I l

Page 1 of 2 62HI-OCB-040-0 R00 FIGURE 3 Page 1 of 2

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DATA PACKAGE 3 DATA SHEET 3 BACKGROUND'AND SOURCE COUNTS VS. VOLTAGE MODEL: Lud' lum Micro R Meter ~ SERIAL NO. DATE:

Mini Pulser MPL No.: 400,000 cpm = 2220 urem/hr Electrostatic Volt Meter MPL.6

+

' 40,000 cpm = 220 urem/hr voltage Setting 4,000 cpm = 22 urem/hr 400 cpm = 2.2 urem/hr

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4 GEORGIA POWER COMPANY HATCH NUCLEAR. PLANT PAGE 1 OF 14 DOCUMENT TYPE: DOCUMENT NUMBER:

' HEALTH-PHYSICS INSTRUMENTATION 62HI-OCB-041-0

~

DOCUMENT TITLE:

BETA CONTINUOUS AIR MONITOR MODEL AMS-3 OPERATION AND CALIBRATION X SAFETY RELATED

NON-SAFETY RELATED 'V /-

o

.4 EXPIRATION DATE: /

REV. APPROVED APPROVED EFFECTIVE NO. DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE 0 Replaces HNP-8148 M, s gyg ,[ _4 , g 4, j ff i

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62HI-OCB-041-0 g

's_) 0 2 of 14 BETA CONTINUOUS AIR MONITOR MODEL AMS-3 OPERATION AND CALIBRATION A. PURPOSE To ensure that the instruments are calibrateo properly and to provide operation guides for the user.

B. SAFETY

, Observe Radiation Protection Procedures.

C.- REFERENCES

1. Technical manual for Eberline Beta Air Monitor, Model AMS-3.
2. Simpson Operator's Manual, Model 2750 Strip Chart Recorcer.
3. Operating Instructions for Eberline Regulated Air Pump Model RAP-1.

.O

"# D. TEST EQUIPMENT

1. Minipulser MP-1-or equivalent
2. Oscilloscope
3. Cl36 check source
4. Magnehelic gauge E. DESCRIPTION OF INSTRUMENT' The Model AMS-3 is a versatile instrument designed for the detection and measurement of beta emitting airborne particulate matter. It consists of.<a lead shielded filter paper and detector, and a four decade count ratemeter and recorder. An alarm indication is given by a red rotating beacon and a bell.

Relay contacts are provided for remote alarm indication. A second detector provides for subtraction of gamma background.

t p)

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62HI-OCB-041-0

~() 0 3 of 14 The function of the instrument is to measure the beta radioactivity from air particulates by concentrating these particulates on a filter, detecting, and graphing the activity on a graphic recorder.

The activity collected on the filter by the AMS-3 is measured and recorded by the strip chart recorder. This strip chart recorder, Simpson Model 2750, is a clamp-type, low speed, strip chart recorder which provides a recording by making sequential impressions on pressure-sensitive chart paper. It uses a rugged, taut-band suspension movement to indicate the measured parameter. Every 3 or 6 seconds, the self-contained synchronous motor activates a bar which clamps the movement pointer momentarily against the paper. This compresses the wax film on the paper, and produces a black dot. Successive black dots produce an apparently continuous line on the paper. The meter movement is free to follow changes in the input sensing element at all times other than the momentary clamping period. The front window is removeable to allow notations that can be made directly on the chart paper. it also provides access to the chart drive mechanism. As the chart paper is used by the recorder, it is stored on the take-up spool.

{}

In the AMS-3, air is drawn through a filter paper (47 mm diameter) at a controlled rate. A regulated air pump, Model RAP-1, is used to pump the air through the filter. The bulid up of activity on the filter paper is detected by a pancake-type geiger tube which, in turn, operates a count ratemeter (CPM),

solid state voltmeter alarm system, and a graphic recorder. The alarm point is adjustable over full instrument range. The alarm indication is a red rotating beacon and bell, plus SPDT relay contacts for remote indicators.

F. DESCRIPTION OF CONTROLS

1. External controls, AMS-3
a. Switch POWER: Turns AC power either ON or OFF to the instrument. The switch is located on the rear panel.
b. POWER lamp: Gives a visual indication of power ON.
c. COUNTING lamp: Lights green to indicate normal instrument operation.
d. FAILURE lamp: Lights red to indicate that no detector pulses are being counted.

() e. Switch, BACKGROUND SUBTRACTION:

the gamma subtraction circuit.

Enables or disables l

62HI-OCB-041-0 (D

\_j - 0 4 of 14

f. Switch, PUSH TO SET: When pressed, displays the alarm setpoint on the recorder. A red-lamp in the pushbutton is one of the high alarm indicators.
g. SET: Ad]usts the alarm point to any point in the instrument range.
h. Switch, ACKNOWLEDGE: Resets the audible alarm (bell) while leaving the visual alarms and relay activated,
i. Air Flow Meter: Indicates the air flow rate through the filter paper.
j. Filter Paper Holder: Located on front panel. It is constructed so that quick and easy changing of the paper can be accomplished.
k. AC Power Plug: _ Used for connection of the AC power cable to the instrument.
1. Fuse Holder: Integral with cable connector and line

- t"')- filter.

m. Barrier Strip: Supplied for the connection of external alarms and recorder to the Model AMS-3.
n. VACUUM, Hose Barb: Supplied for the connection of the vacuum system to the Model AMS-3. For use with 5/16" I. D. hose.
o. Air Intake: For use with 1/2" I. D. hose.
2. Internal Controls, AMS-3
  • Accessible through front panel.
  • a. PULSE WIDTH: Controls pulse width of the main channel trigger. This control is used primarily for ad]usting the recorder response time.
  • b. ZERO: Adjusts the base point for the recorder drive.
  • c. SPAN: Adjusts the current change per decaoe for the recorder drive.
  • d. SUBTRACTION ADJUSTMENT: Adjusts the amount of subtraction from the recorder reading produced by each pulse from the background detector. This can be used

() to compensate for differences in counting efficiency between the two tubes.

62HI-OCB-041-0

%.] O 5 of 14

e. Alarm Delay: Adjusts the delay between the time the count rate reaches the alarm point and the alarm occurrence. This can be adjusted from approximately one second to thirty seconds.
f. Vacuum Relief Value: Limits the system pressure drop to reduce the chance that a system blockage will damage the G-M tube window.
3. Controls, Strip Chart Recorder
a. Pointer and Scale: The pointer indicates on the recorder scale the value of the input signal,
b. Zero Adjust Lever: This lever is coupled mechanically to the meter movement zero setting mechanism, and used to set the meter pointer at mechanical zero.

NOTE The Zero Adjust Lever should

(~T always be positioned so that x) the indicator is at 10 CPM.

It should not be moved unless under the direction of a qualified calibration technician.

c. On-Off Control Lever: This is a two-position control lever, which turns the recorder mechanism on and off.

The position selected is indicated on an adjacent label, which has a red (OFF) and green (ON) sector. In the red position the chart drive mechanism is unlocked for removal from the case.

d. Cear Change Level: This lever changes the chart drive gear ratio. The chart speed is increased 6 times when the lever is moved from the X1 to X6 position.
e. Refer to the owner's manual for location of the strip chart controls.

G. CALIBRATION AND CHECKS

1. Weekly Source Check (When In Service)
a. With the AMS-3 and pump off, remove the filter holder-detector shield plug. After the plug is '

rernoved , remove the filter and replace it with a clean

() filter. (The old filter should be disregarced in a proper manner.

62HI-OCB-041-0

.r%.

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\. 0 6 of 14

b. Place the check source in the inner slot of the opening. Check the instrument response and alarm

-setpoint. Record the results on Data Sheet 1, Data Package 1. Note the results on the chart paper and check the count rate meter and chart readout coincide.

Check to see that detector efficiency has not changed sufficiently from the last semi-annual calibration.

c. Before replacing the lid to the strip chart recorcing paper, make sure the mechanical zero is still set at 10 CPM, there is sufficient paper in the recorder, and.the gear change level is still at X1.
d. Replace the filter holder-detector shield plug (with the. clean filter), and turn on the pump and AMS-3. .

Note the air flow rate in LPM and record on-Data Sheet

, 1. Data Sheet 1 should be completed.

, 2. Semi-Annual Calibration NOTE O There may be a slight difference between the meter scale and the printed trace on the chart paper.

The following checkout procedure may be used to calibrate either the meter scale or.recorcer chart as the primary readout,

a. Readout (1) Connect a short jumper from the base of transistor 0301 on the HV-Trigger Board to +5V. Momentarily short the 900 V VR tube, V301. This disables the high voltage supply so that background counts from the G-M tubes will not affect calibration.

(2) Connect a pulse generator to the main signal connector on the rear panel. The generator must produce a negat!ve pulse of 1 to 50 microseconds pulse width and 600 mV or more amplitude. (The Eberline MP-1 Mini Pulser works well.)

(3) Set the pulse generator frequency to 10 K counts-per minute.

,_ (4) Connect an oscilloscope to the output of the

' A5-B. . Adjust the pulse width, using the front panel PULSE WIDTH control fcr 10 microseconds.

62HI-OCB-041-0 (3,) 0 7 of 14 (5) Set the pulse generator for 20 CPM. Adjust the ZERO control so the readout indicates 20 CPM.

(The readout will take several minutes to stabilize.)

(6) Set the pulse generator for 10K CPM. Ad]ust the SPAN control so the readout indicates 10K CPM.

(7) Repeat steps e and f until no further adjustments are necessary and complete Data Package 2, Data Sheet 2.

b. Subtraction Calibration (1) Connect a pulse generator as in step 2.a.(2) above.

(2) Connect a second pulse generator to the SUBTRACTION SIGNAL connector on the rear panel.

Adjust the generator output as in step 2.a.(2) above.

/~'s (3) Turn the BACKGROUND SUBTRACTION switch OFF.

b)

(4) Set the MAIN pulse generator to 100K CPM. The readout should indicate 100K CPM.

(5) Set the SUBTRACTION pulse generator to 80K CPM.

The reading should not change.

(6) Turn the BACKGROUND SUBTRACTION switch ON. Adjust the SUBTRACTION ADJUSTMENT control for a readout indication of 20K CPM, and indicate on Data Sheet 2, Data Package 2.

(7) Remove the jumper from the HV supply.

NOTE The above procedure acjusts the subtraction circuitry to, nomin-ally, remove all indications due to gamma background. Therefore, with a clean filter in place and no air flow, the readout should peg downscale. However, due to differences in counting efficiency and position of the two G-M tubes, the subtraction may be slightly

() high or low. The final adjustraents should be made on background at the place of use. Adjustments should be

, 62HI-OCB-041-0 4 0' j'

8 of made only with a clean. filter-in

. place and no air flow to pre-vent radon' daughter background from con-fusing the final setting.

c. Alarm Delay (1) The alarm delay is set depenoing on the location and background of the AMS-3.

(2) Thefd elay is adjusted when-the AMS-3 is initially set up so to prevent transient conditions from causing a false alarm.

d. Regulated Air Pump _

(1) 1The regulated air sampler can be used as a regulated air pump (RAP) if the flowmeter and

' filter head / sample holcer are bypassed.

(2) Place filter paper on the AMS-3 as though l' -

preparing to take a sample.

9 (3) Plug the sampler ~in and turn the pump on, allowing a minimum warm-up time of two minutes.

(4) To use the RAP, connect a line or hose to the fitting on the regulator marked-AIR IN. The other-

-end of the hose must be connected to the VACUUM t CONNECTION on the rear panel of the AMS-3.

(5) The ' desired air flow may it.en be set by' adjusting the screw in the side et t e regulator body marked FLOW ADJUST. To inesteit he flow, turn the screw-l counter clockwise. tat ;5 < crease flow, turn it

-clockwise. The recc.umenc.4 air flow for the AMS-3

is 60 LPM.

(6)' Press the rubber adaptor provided on the-Merriam Flow Meter up tight against the air inlet of~the AMS-3. This is.the inlet on top of the AMS-3.

(7) Observe-the magnehelic gauge reading in inches of water. Using the prepared graphs for the Merriam Flow Meter, convert inches of water to LPM and record this value on Data Sheet 2, Data Package 2.

.. ~(8) -Observe the air flow meter on the front panel of O

D-the AMS-3 and recora this value on Data Sheet 2, Data Package 2.

62HI-OCB-041-0

t. s- ) 0 9 of 14 Complete Data Sheet 2, Data Package 2 divicing the magnehelic reading (LPM) by the air flow meter (LPM), to get the correction factor for the AMS-3. Place a tag on the sampler bearing its correction factor.

(9) Place calibration sticker on AMS-3.

(10) Make sure Data Sheet 1, Data Package 1 and Data Sheet 2, Data Package 2 are completed as required.

H. PREPARATION FOR USE

1. Inspection:
a. Check the instrument for physical damage caused by shipment.
b. Check to see that a supply of filter papers (47 mm) and
recorder paper is available.

(~'T 2. Connections:

\)

a. Operate the AC POWER switch OFF (down). Plug the power cord into a 3-wire 115 VAC, 60 Hz grounded receptacle.

The instrument may be changed to 230 VAC, 60 Hz operation by removing and reversing the card in the AC receptacle. (The 100 V and 200 V settings are not functional.) For 50 Hz operation, the recorder must be changed.

b. Connect the vacuum line to the hose barb on the rear of the instrument,
c. For remote sampling, lift off intake cap and connect a j 1/2 inch (1.3 cm) I.D. hose.

i I. OPERATIONAL GUIDE

1. Operation Check
a. Turn the POWER switch ON. The POWER indicator lamp should light. Either the COUNTING or FAILURE Lamp should light.
b. Check the meter indication to see that background radiation is a low number. If an appreciable reading f--

exists, it indicates that the detector is contaminated,

(, is in a high gamma radiation field, or an electronic l failure has occurred.

l

r 62HI-OCB-041-0

(~h 0 L) 10 of 14

c. Place a calibration source next to the detector. The meter should move upscale and stabilize. The actual reading should be the source value multiplied by the detector efficiency.
d. Remove the source from the detector.
2. Operation
a. After proper connections are made and an operation check performed, the unit is ready to operate. Place a clean filter paper in the detector and turn on the vacuum. The ALARM must be set so that an alarm will be indicated as soon as possible if airborne contamination exists, yet not alarm on background radiation. There

, are two major sources of background radiation to which the detector will respond. These are naturally occurring radon-thoron daughter products in the air and external gamma radiation which penetrates the leaa shield to the geiger tube.

l

,g b. If the alarm is activiated, corrective action should be i, j performed. The ratemeter, alarm setting, and graph recorder should be checked for malfunction. A check of the background raciation at the position of the detector should be performed.

A low volume air sample should be pulled if it is determined that a possible airborne condition exists.

The sample in the AMS-3 can also be used for counting and isotopic analysis.

l l

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62HI-OCB-041-0 0

11 of 14 PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-041-0 SERIAL NO: ROO-MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: WEEKLY COMPLETED BY:

,. u DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-CPS-003-0.

i' ACCEPTANCE UNACCEPTABLE l

REVIEWED BY:

DATE REVIEWED:

j REMARKS:

i

( --- .... ..........._ ___.....

l l- Page 1 of 2 62HI-OCB-041-0 R00 FIGURE 1 Page 1 of 2 i

P i _

62HI-OCB-041-0 O

12 of 14 DATA PACKAGE 1 DATA SHEET 1 WEEKLY AMS-3 CONTINUOUS AIR MONITOR CHECK SOURCE: DPM AIR MONITOR MPL NO.:

SOURCE ASSAY DATA: AIR MONITOR LOCATION:

AIR FLOW EFF. EFF. AT RATE LPM BKG D SOURCE NCPM/ ALARM TIME OF SEMI-DATE * ** CPM NCPM DPM POINT ANNUAL CAL. RMKS INIT 1

4 9

I O

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1 Denotes Instrument Reading Denotes Magnehelic Reading at Semi-Annual Calioration 62HI-OCB-041-0 R00 FIGURE 1 Page 2 of 2 nW w-y- --o--p - w-g- e u.-" yt,e -- < - , , - , . .

62HI-OCB-041-0

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( 0 13 of 14 .

PROCEDURE DATA PACKAGE 2 DOCUMENT NO: 62HI-OCB-041-0 SERIAL NO: ROO-I MPL NO:

RTYPE: G15.14 XREF:

TOTAL SHEETS: 2 FREQUENCY: SEMI-ANNUAL i

COMPLETED BY:

.v DATE COMPLETED:

I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-CPS-001-0, 30AC-OPS-003-0.

ACCEPTANCE UNACCEPTABLE REVIEWED BY:

DATE REVIEhTD REMARKS:

Page 1 of 2 62HI-OCB-041-0 R00 FIGURE 2 Page 1 of 3

62HI-OCB-041-0 O o 14 of 14 DATA PACKAGE 2 DATA StiEET 2 INSTRUMENT CALIBRATION DATA SHEET I

INSTRUMENT: LOCATION:

MPL NO.: DATE:

CALIBRATION ACTUAL COUNT CALIBRATED BY: AS LEFT SOURCES RATE AS FOUND MP-1/1 20 S/N 0 100 1000 10K 100K MP-1/2 S/N4 BKGD SUB 20K OSCILL t PULSE WIDTH j 10 usec SOURCE CHECK l SOURCE USED: DPM:

SOURCE CPM: EFF. =  %

INSTRUMENT PARAMETERS ALARM SET:

INDICATED FLOW RATE:

. ACTUAL FLOW RATE BY MAGNEHELIC:

CORRECTION FACTOR (C.F. = INDICATED):

ACTUAL 1

REMARKS:

i a

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FIGURE 2 Page 2 of 2

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-D GEORGIA POWER COMPANY

/ HATCH NUCLEAR PLANT PAGE l-OF 6

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DOCUMENT TYPE:

DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-0


__-_-----_-_-__-----_---_-_-----_---_--------_---------42-0 DOCUMENT TITLE:

HIGH RANGE SURVEY METER EXTENDED CHAMBER CUTIE PIE MODEL CP-TP-5B OPERATION AND CALIBRATION X SAFETY RELATED NON-SAFETY RELATED #L EXPIRATION DATE:

REV. APPROVED NO. APPROVED EFFECTIVE DESCRIPTION DEPT. MGR. DATE GENERAL M GR.

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MGR-0002 Rev. 1

,, 62HI-OCB-042-0 k-) 0 2 of 6 HIGH RANGE SURVEY METER EXTENDED CHAMBER CUTIE PIE MODEL CP-TP-5B OPERATION AND CALIBRATION A. Purpose To establish standard operation guides and calibration technique of the High Range Survey Meter Model CP-TP-5B.

B. Safety Observe radiation protection procedures.

C. Reference

1. High Range Survey Meter Model TP-CP-5B Technical Manual
2. Gamma Calibrator Procedure 62HI-OCB-017-0 D. Test Equipment

/~T 1. Gamma Calibrator L)

2. Resistance Loads mu-l and mu-2 E. Description of Instrument Survey meter, Model CP-TP-5B, is a portable battery operated instrument which uses an ionization chamber for measuring the intensity of gamma radiation in the range 9.1 R/HR to 5000 R/HR.

The instrument consists of an ionization chamber, a totally solid state circuit and an indicating meter calibrated directly in R/HR. The Cutie Pie electronics are in the self-contained housing of hard chrome plated aluminum which can be easily decontaminated if necessary. The probe consists of a 1-3/16" diameter x 5-1/2" long aluminum ion chamber which can be close coupled to the electronics or put on the end of a 44" long extender pole. Also, it can be attached to the connector block at the end of the pole in an end-on position, or a 90 angle.

F. Description of Controls

1. External Controls Switch Turns instrument OFF, SET (zero), X1000, X100, X10, X1, BA button (Battery check), Zero Knob 7- 2. Internal Controls (Calibration)

\ _)

62HI-OCB-042-0 II O 3 of 6

a. Cal X1 Calibrate 0-5 R/HR Range
b. Cal X10 Calibrate 0-50 R/HR Range
c. Cal X100 Calibrate 0-500 R/HR Range
d. Cal X1000 calibrate 0-5000 R/HR Range G. Operation of Instrument
1. Turn the selector switch to the SET position and wait 15 seconds to " Warm Up." Adjust the zero knob to read 0 on the instrument scale.
2. Depress BA Switch to check the batteries.
3. Turn the Selector Switch to the X-1 position. It the meter reads off scale the radiation present is greater than 5 R/HR and the switch should be turned to the appropriate higher scale. The instrument is now ready to read gamma radiation intensities.
4. Instrument should be' returned to the SET position occasionally during the first 30 minutes of operation and

(~T Ll zero reset by turning the external zero control if needed, then waiting 15 seconds before turning the instrument again to any operating range. After 30 minutes, there should be no significant zero drift.

H. Calibration of Instrument

1. Internal Adjustments NOTES Calibration. There are four internal calibration controls; one for each range. These controls are accessible through holes in rear of the case by removing the cover plugs. These controls should not be changed unless there is a calibrated gamma source available for accurate recalibration. The proper procedure for calibrating the CP-TP-5B is as follows:
a. Turn the instrument to SET and allow at least 15 seconds to warm up,
b. Depress the BA button and check the battery strength.

If not in the shaded region, install a new battery and return to Step 1 above.

() c. Place the iristrument in a radiation field of 4 R/HR and turn the switch to the X1 position.

62HI-OCB-042-0 x);

yx 0

4 of 6

d. Remove the cover plug labeled Cal X1 on the rear of the

-case and adjust the internal control until-the meter reads 4 R/HR. Record the reading prior to adjustment in the AS FOUND column of Data Package 1 (Data Sheet 1) and the reading following adjustment in the AS LEFT column of the Data Package 1 (Data Sheet 1).

e. Place the meter instrument in a radiation field of 1 R/HR and check the reading.

~

Accuracy of calibration should be such that indications on the meter will not be lower or higher by more than 20% of full scale.

f. Repeat the above two steps, adjusting reading at top of scale on each range and checking near the bottom of each range to see that the instrument tracks well on the X1 and X10 scales,
g. Due to the limits of the gamma calibrator the X100 and X1000 scales must be calibrated using resistance loads which will provide readings of 350 R/HR on the X100

(~g' (mu-2) and 2800 R/HR on the X1000 (mu-1) scales. Hook s/

up each resistance load for their respective scales, record the readings in the AS FOUND column. If the.

readings are not within + 20% adjust the corresponding pot to achieve the proper readings and record them in the AS LEFT column.

h. It should be noted that some zero drift may occur during the first-30 minutes of operation. Therefore, for accurate readings during this period occasional

~

zero setting should be performed by turning the instrument to set and adjusting the external control '

knob, if necessary, to reestablish the zero and, of course, waiting 15 seconds before turning back to the radiation measuring ranges.

2. Coarse Zero Adjustment If the external zero control will not zero the meter, an internal coarse zero adjustment is available through a hole in the bottom of the case. This control should be adjusted in the following manner:-
a. Turn the selector switch to the SET position.
b. Turn the external zero control to approximately 3/4 of a revolution from the extreme counter-clockwise position.

O c. Adjust the internal coarse zero adjustment until the meter reads zero.

62HI-OCB-042-0

-(

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5 of 6


....--....-- .........--..... = =--_ .--........--.. ----.

PROCEDURE DATA PACKAGE 1 DOCUMENT NO: 62HI-OCB-042-0 t SERIAL NO: 'ROO-MPL NO: I i

RTYPE: G15.14 g XREF: NA TOTAL SHEETS: 2 FREQUENCY: Semi Annual

. f) COMPLETED BY:

'DATE COMPLETED:

I HAVE RSVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH 10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

ACCEPTABLE UNACCEPTABLE I

REVIEWED BY:

)

DATE REVIEWED:

i REMARKS:

l' Page 1 of 2 62HI-OCB-042-0 ROO I

FIGURE 1 Page 1 of 2

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L! 0 6 of 6 DATA PACKAGE (DATA SHEET 1)

INSTRUMENT CALIBRATION DATA SHEET d

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GEORGIA POWER COMPANY A(_) HATCH NUCLEAR PLANT PAGE 1 OF 6 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-043-0 DOCUMENT TITLE:

, XETEX DIGITAL DOSIMETER MODEL 415A OPERATION AND CALIBRATION X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: d REV. APPROVED APPROVED NO. EFFECTIVE DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE DATE 0 Replaces HNP-8150 l Q -

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62HI-OCB-043-0 0

A)

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2 of 6 XETEX DIGITAL DOSIMETER MODEL 415A OPERATION AND CALIBRATION A. PURPOSE To establish standard operation guides and calibration techniques of the Xetex Digital Dosimeter Model 415A.

B. SAFETY Observe radiation protection procedures.

C. REFERENCES Pocket Dosimeter Operation and Calibration Procedure 70AC-TRN-001-0, AG-TRN-01-0484 D. TEST EQUIPMENT

1. Gamma source
2. Timer

!,_l

\/ E. DESCRIPTION OF INSTRUMENT The digital dosimeter is an all solid-state dosimeter suitable for gamma and X-ray measurements from 50 kev to 1.0 MeV. Dose is recorded accurately in units of one mil 11 roentgen while chirping occurs with each increment, audibly alerting the user to dose accrual. The detector is a halogen-quenched, energy-compensated G-M tube. Power is supplied by a miniature 9V transistor racio type battery, and pushbutton actuateo battery test is provided.

The instrument is packaged in a rugged aluminum case with a belt clip.

F. OPERATION OF INSTRUMENT

1. Check that the dosimeter is not visibly camageo.
2. Battery Check
a. To activate the instrument, slide the power switch to the ON position,
b. Depress the adjacent pushbutton to check the battery.

If the battery is good, the BATT lamp (LED) will light.

d

m l

62HI-OCB-043-0

/^'s

\/ 0 l l 3 of 6 l , NOTE L If the lamp does not stay lit as long as the button is depressed, the battery is defective and must be replaced. However, do not depress the button longer

~

than required, otherwise battery life will be adversely affected.

3. Zeroing the Dosimeter i l
a. To reset the dosimeter, depress the RESET pushbutton, l

located behind the 0.1" diameter hole below the CHIRP RATE switch next to the belt clip. This can be done by inserting a short rod into the reset hole and pushing against the switch button.

b. Depress the BATT/ DISPLAY pushbutton and check to see if the display reads zero.
4. Using the Instrument
" ore CE)

The purpose of these dosimeters is to provide an audible signal of the accrued dose as well

as a quick reading LED display. These dosimeters are to be used to supplement the direct reading pocket dosimeterr currently in use at the plant.

The use of the Xetex digital dosimeters is in no

, way meant to replace the'use of the direct reading pocket dosimeters, and for this reason anyone that is issued a Xetex digital dosimeter must also have the appropriate direct reading pocket dosimeter.

a. Before entering an exposure field the user should make sure that the power switch is ON. At this time and periodically during use he should depress the

! BATT/ DISPLAY pushbutton to check the battery as described in Section F.2.

b. Select the chirp rate desired with the CHIRP RATE ,

switch. In the L position, each dose increment will produce one chirps whereas one increment will prouuce l about 40 chirps in the H position to give the user a more immediate audible warning at relatively low exposure rates.

1 l c. When desired, exposure dose in mR is read by depressing l s the BATT/ DISPLAY pushbutton to light the display.

i I

62HI-OCB-043-0

,~

(_) 0 4 of 6

d. Exposure during the use period is the difference between the registered dose and the starting dose. If the instrument has been properly zeroed, the exposure during the use period is the displayed dose.
e. After each use of the dosimeter, the power switch should be turned to OFF to prevent accumulation of background dose between uses. The registered dose will remain stored in the unit as long as a good battery is connected or until the dosimeter is manually reset as described in Section F.3.

G. CALIBRATION OF INSTRUMENT

1. Check that the instrument is not visibly damaged.
2. Perform a battery check in accordance with Section F.2. of this procedure.
3. To assure that the accuracy of the instrument is being maintained, perform a source check every 6 months as follows:

I

a. place the instrument in a 100 mR/hr gamma field created by a Cs-137 source. The dosimeter must be oriented with the long axis of the G-M tube perpendicular to the radiation beam. The G-M tube is located on the right side of the case (when looking at the belt clip) at mid-thickness,
b. Expose the dosimeter.to this field for 15 minutes,
c. At the end of the 15 minute exposure, remove the instrument from the field and observe the accumulated dose by depressing the BATT/ DISPLAY button.
d. Record the observed dose on Data Sheet 1, Data Package 1 of this procedure along with the~ serial number of the instrument.
e. The observed dose should read 25 mR + 15%; if not, the instrument must be returned to the Xetex factory for repair.

O

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j 62HI-OCB-043-0

! 0 5 Of 6 i

PROCEDURE DATA PACKAGE 1 i

DOCUMENT NO: 62HI-OCB-043-0 i

. SERIAL NO: ROO-

{ MPL NO:

RTYPE: G15.14 t ,.

XREF:

4

~

j ,

4 TOTAL SHEETS: 2 g FREQUENCY: As Required  ;

I i COMPLETED BY: I i

i DATE COMPLETED:

i I HAVE REVIEWED THIS DATA PACKAGE FOR COMPLETENESS AND AGAINST ACCEPTANCE CRITERIA IN ACCORDANCE WITH

?

10AC-MGR-003-0, 30AC-OPS-001-0, 30AC-OPS-003-0.

l j ACCEPTANCE UNACCEPTABLE i

i l,

REVIEWED BY:

1 3 DATE REVIEWED:

i 4

v.

a. - REMARKS:

4 l

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t li Page 1 of 2 62HI-OCB-043-0 ROO i I

l FIGURE 1 Page 1 of 2 t F

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m A 0 6 of 6 DATA PACKAGE 1 DATA SHEET 1 XETEX DIGITAL DOSIMETER MODEL 415A CALIBRATION LOG

. CALIBRATED 3Y TEST EQUIPMENT MPL SOURCE DATE READING READING TOTAL PASSED SERIAL BEFORE AFTER NET TIME CALCULATED TEST NUMBER EXPOSURE EXPOSURE EXPOSURE EXPOSED EXPOSURE /OR NO (1) (2) (3)=(2)-(1) (MINUTES) (4)

  • A _ _ _ _ _ _ _ _ ..________.. . _ _ _ _ _ _ _ .. _ _ _ _ _ _ _ _ _ . .. _ _ _ _ _ _ _ _ _ _ .. _ _ _ _ _ _ _ . . . ... _____.

V

  • To pass test, (3) should be within + 15% of (4). _

Page 2 of 2 62HI_OCB 043-0 R00 t

FIGURE 1 Page 2 of 2

1 GEORGIA POWER COMPANY

( f HATCH NUCLEAR PLANT- PAGE 1 OF 7 DOCUMENT TYPE: DOCUMENT NUMBER:

HEALTH PHYSICS INSTRUMENTATION 62HI-OCB-044-0 DOCUMENT TITLE: -

PANASONIC UD-702 TLD READER OPERATION AND CALIBRATION X SAFETY RELATED NON-SAFETY RELATED EXPIRATION DATE: 4/ /I REV. APPROVED APPROVED NO.

EFFECTIVE DESCRIPTION DEPT. MGR. DATE GENERAL MGR. DATE D

_____ _____________-_______ _________ q ______ ______ _____ ATE -___.

.O Replaces- HNP-8151 M(A) c d 5yg _._____._____4 g, f ff

_________________________ _______ ______ [____________

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MGR-0002 Rev. 1 L

i

62HI-OCB-044-0

/~

U) 0 2 of 7 PANASONIC UD-702 TLD READER OPERATION AND CALIBRATION A. PURPOSE To provide a procedure for the operation and calibration of the UD-702 Panasonic TLD reaoer.

B. SAFETY Observe Radiation Protection Procedures. Observe safety rules outlined in Ga. Power Company, SAFETY, Section "O".

C. REFERENCES Panasonic Thermoluminescent Dosimetry Manual, #001-0025-06: TLD Reader UD-702 Operation Manual (Raciation Management Corp),

  1. 001-0025-02; Calibration of Panasonic Model UD-710A TLD Reader and UD-801A Personnel Dosimeters, #001-0025-03.

D. TEST EQUIPMENT O None Required.

E. DESCRIPTION OF INSTRUMENT The UD-702 is designed to measure UD-800 Series TL badges manually and print out-by built-in printer.

F. SPECIFICATION Applicable TL Badge: UD-800 Series Heating Method: Optical Heating Measuring Method: Digital integration of Photon count and current Measuring Range: 10mR - 1000R = L12B407 1mR - 200R = Ca SO4 Reproductibility: 5% at 100mR by Li2B407 2.5% at 100mR by CaSO4 I.D. Code: Optical Reading Room Temperature: 0 - 40*C i Room Humidity: 10 - 80% RH

l. Power: 100/ll5V + 10% 60HZ Power Consumption:. 250 VA max.

Dimension: 470 x 320 x 216 mm

! Weight: Approx. 531bs.

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62HI-OCB-044-0 7"N _ 0

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3 of 7 G. DESCRIPTION OF CONTROLS

1. Power Switch: Power transformer controls on/off operation of the primary side.
2. Read Button: Starts measurement. Equipped with two LED's.

'3. ID-CODE Key: Enters ID codes and parameters when using 807 type TL badges.

4. Display: Displays doses, ID codes and parameters.
5. Monitor Lamp: Connected to heating lamp through optical guide.
6. Badge Loader: Loads and unloads TL badges.
7. . Element Selector: Selects measurement elements. Locked during measurement.
8. Date Setting Switch: Sets date of measurement.

(~) 9. Printer: Discharge printer.

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10. Release Button: Releases paper when turned upwards.
11. Manual Paper Feed: Manually Feecs paper when turned toward the operator.
12. Paper Holder: Holds the paper roll. Paper used is metalized recording paper, Silverno 890-2B, by Honshu Paper.
13. -Print Switch: Controls on/off operation of printer.

H. ORDER OF OPERATION

1. Start Of Operation
a. This UD-702 is connectable to one of AC100V, ll5V, 230V

+ 10% (50 or 60 HZ). This reader is set at AC 115V before shipment. Please cneck line voltage so that the reader works properly,

b. Set the printing paper and date. If you don't use the printer, turn print switch to "OFF".
c. Power switch "ON".

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d. When power is "ON", the display panel indicates "

99999999" "00000000" by 0.5 sec. intervals. Since this is to check the operation, if it does not appear, please turn OFF power.

e. After part "d" is finished, and if the reader has any trouble, the error code ~is displayed (buzzer goes off). If The buzzer does not go on, the reader '.s ready to measure. Refer to Table 1 for a list of possible errors.
f. Please wait about 5 minutes after turning ON to stabilize the reader.
2. Zero Point Measurement When element selector is located at "ZERO" and the " READ" button is pushed, zero point measurement starts. During the measurement, the " READ" lamp turns on. After the measurement, the " READ" lamp is OFF and " READY" lamp is ON.

The value is indicated on both the display panel and printer. Zero point measurement is necessary to check the

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measurement system of the reader. If there is any error, the buzzer turns on, error code is displayed, and the error message is printed out.

3. Calibration Source Measurement Push in the " Badge Loader" without a TL Badge, turn " Element Selector" to "S", and push the " READ" button. This will start the calioration source measurement. During the measurement, the " READ" lamp is ON and after the measurement, the " READ" lamp is OFF and " READY" lamp is ON.

The result is indicated on both the display panel and printer.

Calibration source measurement is necessary to caliorate the drift of sensitivity by a built-in calibration source. If the value is + 10% more than standard value set before shipment, the buzzer turns on, an error code is displayed, and an error message is printed out. This measurement should be done once a day.

4. Measurement Of TL Badge When you start the operation, first measure the zero point and calibration source. Then proceed on as follows:

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a. Load the TL Badge on the " Badge Loader", then push

" Badge Loader" into the reader (I.D. code hole must De front side),

b. I.D.' code is read automatically and indicated on the display panel and printer.
c. When ready lamp is ON, set Element Selector to 1 and push Read button. The reader starts to read.
d. During the measurement, Read lamp is ON and Element Selector is locked. When the measurement is finished, Read lamp is OFF, Ready lamp is ON, lock of selector is released and buzzer is ON.
e. Turn the' Element Selector to next element.
f. After measurement is completed, turn the Element Selector to Zero, pull out Badge Loader and take out TL

' Badge.

I. CALIBRATION O

\d The Panasonic UD-702 TLD reader has been manufactured to perform

. adequately.without scheduled calibration. Calibration to the reader is only required when necessary, and should be performed by qualified Panasonic Servicemen.

1. Measuring Principle and Calibration Schedule A signal detected by the photomultiplier tube is digitally integrated, and the count value is converted to dose using the preset conversion Factor Inherent to each unit. The built-in ref, light source has sensitivity checking and compensation functions to compensate for deflection of the unit. As'a result, esnsitivity is normally compensatea for by the sensitivity check. When the conditions descrioed below appear, the dose convertion Factor must be reset.
a. Reader sensitivity is extremely low (error code "01" is generated).

b.. Optical devices including the photomulitplier, etc. are replaced or cleaned,

c. High voltage setting is changed.

Fu'rther information concerning reader calibration can be located in the Panasonic Thermoluminescent Dosimetry Manual. Otherwise, when calibration is necessary, a

-( ) qualified Panasonic Serviceman should perform any adjustments to the reader.

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6 of 7 NOTE The Panasonic UD-702 TLD Reader, and the UD-801A personnel dosimeters are only used as secondary results as compared to the Eberline TLD results. The Eberline TLD's are considered the final reportable results, where the Panasonic dosimeters are only used in special cases, as per discretion of The Dosimetry Department. The important qualities of the Panasonic reader and personnel dosimeters are that individual exposure results can be obtained immediately.

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62HI-OCB-044-0 Q 0 7 of 7 TABLE 1 ERROR CODE TABLE I I t 4 8 0 0 t 0 t t 0 t i B t 0 I e I e e et 3 e 0 3 9 I t t t t t 4 l l e 4 4 g 3 i i 4 4 4 m. f g 0 t t e e i ei l e>0 4 1 e 3 0 t. B & 3 e 0 e B t I g t O 0

9 se 8