ML20052C971

Public Version of Revision 5 to Emergency Plan Implementing Procedure HNP-8022, Environ & Personnel TLD Cross Check Program.

ML20052C971
Person / Time
Site:	Hatch
Issue date:	04/19/1982
From:	Rogen W GEORGIA POWER CO.
To:
Shared Package
ML20052C962	List: ML20052C968 ML20052C971
References
HNP-8022-01, HNP-8022-1, NUDOCS 8205060153
Download: ML20052C971 (6)

Text

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- GEORGIA POWER COMPANY HATCH NUCLEAR PLANT

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PROCEDURE Environmental _.and Personnel TLD .C ro s,s C hw e k P r oS1 ram

. PROCEDURE TITLE .: '

HNP-RORP

PROCEDURE NUMBER

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RESPP"SJBLE SECTICN SAFETY RELATED ( ) NON-SAFETY RELATED ( X) .

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• APPROVED APPROVED l; REV. DESCRIPTION DEPT. PLANT DATE .

MANAGER i, ,.(

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5 General Revision Q

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PROCEnt!RE REVISION RECT lFST '

PROCECURE NO. HNP__301_3. _ ___j ,

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OFPARTMENT W/.O_ ANROh'& __

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' REVISION CHANGES MOCE OF OPERATION CT INTENT AS DESCRIDED IN FSAR:

( ) Yes , ( 6 No ,

CHANGE INVOLVES: i

'( ) An unreviewed Safety Question ( ) Tech. Specs. ( ) Neither  : g y}!

(See back for Safety Evaluation if required). .

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Safety /Non-safety Status Change ( ) Yes ,( /) No

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REFEREN&DNI.Y 7

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. -  :.J ENVIRONMENTAL AND PERSONNEL TLD CROSS CHECK PROGRAM j A. PURPOSE .

l To ensure that personnel' ra,diation expi2sure results and i

environmental radiation exposure results as reported by the outside contractor are reasonably ~ accurate.

B. SAFETY '

Observe ' radiation protectiqn procedures. j C. REFERENCES s

. HNP-8110, Victoreen Condenser R-meter Model 570 Operation and I Calibration 7 e

D. TEST ECUIPMENT *[

__ l. 4 Dosimeter calibration board.

2. Gamma source.  !

3. Victoreen R meter W/"R" chambers 130 and 552.

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4. Stop wa'tch. ii li

5. Twelve unexposed visitor TLD badges.  !

Six unexposed environmental TLD badges.

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7. Six unexposed Panasonic TLD badges.

l' E. FREGUENCY . f Minimum once per quarter. l'

-l F. PROCEDLtRE -

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1. Field T'esting/ Cross-Checking of' Personnel TLD's 1 Personnel TLD crUss-check program can be achieved through

. double badging of a certain fraction of personnel involved j in jobs that result in a range of exposures. For this i reason, about 5 to 10 individuals from H.P. staff shall be j chosen, and they will wear the additional TLD just.like  ;;

their regular TLD (preferably at about the same Jocation).  !

- ,, On receipt of results from the vendor, an investigation will i, be done if difference is greater than 207..

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2. Spiking of TLD's to Known Radiation Fields I

a. The unexposed TLD badges can be exposed using three -

different methods. The methods are the calibration board, calibration well, and the wo}k bench area. When

• using the calibration well, or work bench area, the source-to-badge' distance can be adjusted to obtain different exposures. ~

There are other sources available '

to be used with the work bench or calibration board.

NOTE The faces of the tadges must be toward the source.

b. The following badges and the number of each type should ,

be exposed as follows; ,

e 2 Environmental badges-15 mR 2 Personnel badges-1000 mR

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2 Environmental badges-25 mR 2 Personnel badges-2400 mR -

2 Environmental badges-50 mR 1 Panasonic badge-50 mR 2 Personnel badges-50 mR 1 Panasonic badges-100 mR 2 Personnel badges-100 mR 1 Panasonic badges-2OO mR 2 Personnel badges-2OO mR 1 Panasonic badge-500 mR 2 Personnel badges-500 mR 1 Panasonic badge-1000 mR 1 Panasonic badge-2400 mR

c. Calculate-the clock times required, and distances required (depending on the source used) for approximate doses of 15, 25, 50, 100, 200, 500, 1000, 2400 mR to be received. Record on Data Package 1, Data Sheet 1. An RO-2A (or equivalent) or R-chambers can be used for this purpose.

d. After time and distance are calculated for each individual dose, rerero the R-chambers required for the dose needed. When exposing a set of badges to a

• certain dose, an R-chamber must also be exposed at the same time. If the R-chambers and reader are out of service because of calibration, the last measured R-chamber source curves may be used instead.

NOTE Use the Model 130 R-chambe r -(0.25R) for badges exposed from 15-200 mR and the Model 552 R-chamber (2.5 R) for badges exposed 500-2400 mR.

' Refer to HNP-8110 for the use of the Victoreen 2

{- R-chambers and readers. ,

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REFERENCE ONLY .

MANUAL SET

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e. After TLD's have been exposed, they shall be mailed to the appropriate vendor for reading. Read Panasonic TLD's on the Panasonic TLD Reade'r and record on Data Package 1, Data Sheet'1. Read the,R-chamber as per HNP-8110, and record on Data Sheet J. If the Panasonic Reader is'out'of use at the t.ime of the calibration

- check, do not expose the Panasonic badges until the reader is operative.,

f. After vendor's results have been obtained, log and compare'the vendor's results with R-meter results on Data Package 1, Data Sheet 1. Vendor's results take approximately 1 month to obtain.

g. If results are not withir 20%, initite corrective action and explain corrective action taken on Data -

Package 1, Data Sheet 1 (i.e., recalculated results, .

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e review vendor's results, etc.). Procedure can be i repeated if necessary. l

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I HA%E REVTE"WED THIS DATA PACKAGE FOR CtTFt.ETFPECS N O ACA1NST ACCEPT #CE CRITfRfA IN ACCORDANCE WITH > @ -930.

1. CCEPTANCE LNACCEPTABLE REVIDCD BY:

DATE REVIDED:

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+0ADCC TYPE: P: Personnel, E Environmental, N: Panasonsc WRE ANY TLDs > 20Z DirF. ( )YES ( Ira IF YES EXPLAIN CORRECTItE ACTICN T/JENI

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