ML20237G401
| ML20237G401 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 08/18/1987 |
| From: | Martin T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Radford Converse POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK |
| References | |
| NUDOCS 8708240075 | |
| Download: ML20237G401 (2) | |
See also: IR 05000333/1986006
Text
{{#Wiki_filter:- . t ' q. " AUG i 8 1997 . Docket No. 50-333 { Power Authority of the State of New York James A. FitzPatrick Nuclear Power Plant ATTN: Mr. Radford J. Converse Resident. Manager P. O. Box 41 Lycoming, New York 13093 Gentlemen: Subject: Inspection No. 50-333/86-06 This refers to your letter dated June 26, 1987, in response to our request for further information during NRC Inspection No. 87-18. We have received the requested information. This information is currently under review by our technical staff. Closure of the open items will be documented in future inspection reports as appropriate. Your cooperation with us is appreciated. Sincerely, Original Signed By L 'a Thomas T. Mart n, Director Division of Radiation Safety and Safeguards cc: J. Phillip Bayne, President j Mr. John C. Brons, Executive Vice President - Nuclear Generation A. Klausmann, Vice President - Quality Assurance and Reliability R. L. Patch, Quality Assurance Superintendent George M. Wilverding, Chairman, Safety Review Committee Gerald C. Goldstein, Assistant General Counsel R. E. Beedle, Vice President Nuclear Support S. S. Zulla, Vice President Nuclear Engineering R. Burns, Vice President Nuclear Operation NRC iicensing Project Manager Dept. of Public Service, State of New York Public Document Room (PDR) Local Public Document Room (LPDR) 4 Nuclear Safety Information Center (NSIC) NRC Resident Inspector State of New York 8708240075 870818 FFICIAL RECORD COPY RL FITZ 86-06/2 - 0001.0.0 0y ' ADOCK 0500 3 gDR 08/07/87 j
_ - . - . _ - , . U0 I O 1987 Power Authority of the State of New York 2 ' ,, bec: Region I Docket Room (with concurrences) Section Chief, DRP Robert J. Bores, DRSS , ' RI:DRSS RI:DRSS RI:0RSS /d)DR . J SS > Ci igdjh LeQuia @(Spanbaky gliasy Martin ~ j dY QFD > 8/jo 87 8N/87 8ht/87 8f{87 8/)f87 0FFICIAL RECORD COPY RL FITZ 86-06/2 - 0002.0.0 l 08/07/87 j 4
-- - - _ - _ _ .. , . Jamis A. Fit: Patrick '
- '*'4'
' Nuciser Powst Visnt . Po. Box 41
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Lycoming. New York 13093 315 342.3840 Radford J. Converse -- " " * " ' * *
- 5 NewYorkPower
4pf Authority. June 26, 1987 l JAFP-87-0510 ' U.S. Nuclear Regulatory Commission Region I 631 Park Avenue i King of Prussia, PA 19406 Attention: Dr. Mohamed M. Shanbaky, Chief Facilities Radiation Protection Section SUBJECT: Inspection Report 50-333/86-06 Gentlemen: During, a special announced appraisal of the radiological protection program at the James A. FitzPatrick Nuclear Power Plant, Ms. J. Cioffi of your staff requested additional infor- mation relative to inspection follow-up items 50-333/86-06-02, -03 and -05. This letter transmits those items as discussed with Mr. George J. Vargo of my staff on June 23, 1987. Extremity Dosimeter Calibration 86-06-02 In the Authority's response to this item (JAFP-87-0469 dated l June 9, 1987) it was stated that the cause of the anomalous response of extremity dosimeters was due to fading While this was true for some of the low energy beta irradiations of the UD-812 dosimeter, the response did not address the high energy photon response referenced in the inspection report. At the time of the inspection, the dosimetry system was operat- ed in its original configuration for the UD-801 dosimeter using the original dosimeter algorithm developed in conjunction with the University of Michigan. This original algorithm was based on the "as received" configuration of the TLD reader with no parameter changes. Use of the TLD reader in this manner required that the original algorithm be adjusted to provide accurate readings without changing reader parameters. As a result of test irradiations, a correction of 1. 5 8 was derived for high energy photons response of the extremity dosimeter. It was this correction factor that was considered ancmalous in the 86-06 Inspection. During subsequent testing and development of the new UD-812 dosimeter system, TLD reader parameters were adjusted to provide a correction factor of approximately 1.00 for high energy photons. As a result, the need for correction factors has been eliminated. Specific test )
1 TO: U.S.N.R.C. June 26, 1987 ' ' FROM: RADFORD J. CONVERSE JAFP-87- 0510 . SUBJECT: INSPECTION REPORT 50-333/86-06 Page -2- . data showing the extremity dosimeter response to Cs-137 photons is attached. Quality Control and Calibration (86-06-03) A copy of procedure PDP-7, " Dosimetry System Calibration and Quality Control Procedure" is attached as requested. Dosimetry Procedures (86-06-05) As requested copies of procetures PDP-1, " Dosimetry Records Procedure", PDP-3 " Direct Realing Dosimeter Calibration" and PDP-6, " REM System Instructions" are attached. Should you require further information, please contact. Mr. George J. rgo of my staff at 315-349-6706. /7 .;/ / \\ _ { wL4&v v , RA FORD . CONVERSE RJC:GJV:emd Attachments Distribution E. Mulcahey NRC Resident Inspector NRCI 86-06 File Document Control Center i i _______--__-__-___O
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u, 'M . - . _ . c. I 2a; - . _ . . . . _ . . - _ _ . . . _ . . . . _ . . - . . ~ . . . .. i 5b 36 37 30 l _aj . . _ - _ -. . . . . _ _ . . _ . - . . . _ . _ . _.._._ ._. . _ 41 40; 44 44 "U _ - . . - _ 4(, 47 $ . 40 l wl' .. SO .: $3 l 54: I m. I 3 36! ! - ..___ __-____ _____ - -__ - D
_ _____ - . - - - - - - , - - - - - - - _ - - - - _ _ - - - - - - - - - - - - - - - - - - - - . - . _ - - - - . - - . . - - - - - - - _ -- - - - - . - - - _ - - - - - ,- . 4 NEW YORK POWER AUTHORITY JAMES A. FITZPATRICK NUCLEAR POWER PLANT . l RADIOLOGICAL AND ENVIRONMENTAL SERVICES DEPARTMENT PROCEDURE NO.: PDP-3 TITLE: DIRECT READING DOSIMETER CALIBRATION PORC Review No./Date Meeting No. N/A Date 4/30/74 Approved By: . R6sidefit Manag V J Approved By: m%e/<-- m Radi5 logical and Env pfnmental Services Superintendent Y h; b ' c lGddLt U L o. AS Gw - Page No.: 1 2 3 4 5 Rev. No.: 1 1 1 1 1 Page No.: Rev. No.: ! i Rev. No. 2 Date 06/86 ~ [[ _7 -- fO l __ _
- - - . . - - ._ - - - _ - - - _ - _ - - - _ _ . . 4 PDP-3' ' DIRECT READING' DOSIMETER CALIBRATION 1.0 PURPOSE The purpose of this procedure is to provide instructions for the calibration of direct reading dosimeters (DRD's). 2.0 REQUIREMENTS AND ACCEPTANCE CRITERIA 2.1 Technical Specifications None 2.2 Fuel Warranty None 2.3 10 CFR 20 None - 2.4 Plant 2.4.1 Direct reading dosimeters and the calibration methodology of direct reading dosimeters should meet the acceptance criteria of USNRC Regulatory Guide 8.4 and ANSI Standard N13.5. 2.4.2 Direct- reading dosimeters should be issued to and worn by all personnel entering radiation areas. 2.4.3 The discharge (drift) of a fully charged dosimeter should not exceed two percent of full scale in 24 hours. 2.4.4 The. exposure sensitivity should be accurate to + 10 per- cent for an exposure of at least one half of full scale. ' 2.4.5 The direct reading dosimeters should be cleaned, drift checked and calibrated every six months. 2.4.6 Upon initial receipt of dosimeters, fill out a Dosimeter ~ Calibration Log sheet (Figure 1) for each one. 3.0 SPECIAL EQUIPMENT 4 3.1 Dosimeter charging unit should be available to initially ze- ro (charge) the dosimeters. 3.2 Shepherd Model 142-10 Calibrator. 3.3 Calibrated stop watch. Rev. No. 2 Date 06/86 Page 1 of PDP-3 .
_ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _, . . . 4.0 PREREQUISITES AND PRECAUTIONS . None 5.0 PROCEDURE . 5.1 Prerequisites 5.1.1 Assure that the calibration device being used has been calibrated within the specified period of time. 5.1.2 Prior to calibration, DRD's should be cleaned in an ultra- sonic cleaner. 5.2 Precautions Observe standard precautions for handling radioactive mate- rials. Do not (unnecessarily) expose any part of your body to the unshielded calibration source. 5.3 Drift Checking the Dosimeter (s) 5.3.1 Using a dosimeter charging unit, charge (zero) dosimeters to be calibrated. 5.3.2 Log each dosimeter serial number and zerced reading on the Dosimeter Calibration Log (refer to Figure 1). 5.3.3 After 24 hours in a low background area, log dosimeter readings in the appropriate column of the Dosimeter Cali- bration Log (refer to Figure 1). 5.3.4 The 24 hour drift should not exceed two percent of full scale. A dosimeter that exceeds the drift limit two consecutive times shall be rejected as defective and given to the Dosimetry Supervisor. The nature of the defect should be noted in the Notes column of the Dosimeter Cali- bration Log (refer to Figure 1). I f ! ! ! Rev. No. 2 Date 06/86 Page 2 of PDP-3 _
- _ _ - _ - _ _ _ - _ _ - _ _ _ _ . . . 5.4 Exposure Check of Dosimeter . 5.4.1 The dosimeter should be exposed to one half of full scale but not more than 90 percent of full scale at an exposure rate equal to or greater than the maximum exposure rate as recommended by the manufacturer. 5.4.2 Estimate the time necessary to achieve the desired expo- sure, i.e., Assume that 0 to 200 mR dosimeter is to be exposed to 180 mR at an exposure rate of 400 mR/hr. Calculate the required time as follows: fesiref,Ex mRjr) x min /hr = Exposure Time (min) } Ra Therefore,AfDm x 60 min /hr = 27 min hr Record calibration date on the Dosimeter Calibration Log sheet located in the Dosimeter Calibration Logbook (refer to Figure 1). 5.4.3 Expose the dosimeter for the calibrated time at the de- sired exposure rate. Record the expected exposure on the Dosimeter Calibration Log (Figure 1). 5.4.4 Record each dosimeter reading on the Dosimeter Calibration Log sheet (Figure 1). 5.4.5 Dosimeter readings should fall within + 10 percent of the - calculated exposure. 5.4.6 The technician performing the calibration should initial in the Tech Init column of the Dosimeter Calibration Log, if the dosimeter is within + 10 percent of the required exposure (refer to Figure 1) .- 5.4.7 If the dosimeter reading exceeds + 10 percent of the exposure, it should be noted in the Notes column of the i i Dosimeter Calibration Log (refer to Figure 1), re-zerced and re-exposed. After two consecutive failures, the dosimeter should be marked defective and given to the
Dosimetry Supervisor. 5.5 Collecting and Issuing of Dosimeters Dosimeters are issued from a stock of calibrated dosimeters in accordance with PDP-2. Rev. No. 2 Date 06/86 Page 3 of PDP-3 _ ___-__ - _________-____ _ _
_ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ - _ _ . , - ., 6.0 REFERENCES ~ 6.1 USNRC Regulatory Guide 8.4 Direct Reading and Indirect - Reading Pocket Dosimeters 6.2 ANSI Publication No. 13.5 - Performance Specifications for Direct Reading and Indirect Reading Pocket Dosimeters for X and Gamma Radiation, 1972 6.3 PDP-2, Use and Control of Direct Reading Dosimeters 6;4 RTP-21, Condenser R-Meter Instructions 7.0 ATTACHMENTS 7.1 Figure 1, Dosimeter Calibration Log i )
i l Rev. No. 2 Date 06/86 Page 4 of PDP-3 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ - _ _ _ _ _ _ _
_ _ _ _ _ _ _ , , _ , ., , ,r . e i 5 i
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PDP-3- - ' Figure 1 / . , , { ,1 ' . - . . . , , ' D0l:iIMETER CALIBRATION LOG [-(! ' < - > . JAF Ser'ial,No.,: { /' " < l Sefial No. . - ' Date Received: _ ' '_ Range: T , , . ._ }
- j ,
f i , I r -_ _ ._. ,_. r_ ._ , 0 Due i ,c- 24 ;'Hr Cal Riading Tech Zero Checl3 Exposure Afk r lInit Notes Date Date - - , . - . _ , , , . _ . . . . . ' y - . - ,_/ , i < . ,, i a o - -_ - _ .. .. ._ '. 7, t - .- ., ..._ . i - < ,,A .w ,_ f, , ,_ , , . > ' < , - - e i , r ( . + . - _. - - - ._ - .r .4 ,, ,, -'t { r _ _ . , _ _ _ _ . . . . . _ _ .. e - 7, . .. y g - .. , , ., , , , , , . ~.' - [ , ._ % Y r q. _ _. , u ! ... . _~ .__ ..J/ 4 ( _._ " ., .i ,, . - - .. t . . . . Rev. No. 2 Date 06/86 Page 5 of PDP-3
J. .. - .- , , . NEW YORK POWER AUTHORITY . JAMES A. FITZPATRICK NUCLEAR POWER PLANT r ' RADIOLOGICAL AND ENVIRONMENTAL SERVICES DEPARTMENT -
, PROCEDURE NO.: PDP-6 TITLE: REM SYSTEM INSTRUCTIONS 4 PORC Review No./Date- Meeting No. N/A Date J /f/)/ 7 / Approved By: / /Guo - Resident' mat 1ager a Approved By: Au ., w/ RadfTological and Envip;P5 mental Services Superintended G D
t , O' O_ b v'\\_' u ' i- > ' _ , _ , Page No.: 1 1 2 3 4 5 6 7 8 9 10 Rev No.: 4 4 4 4 4 4 4 4 4 4 4 ' Page No.: 11 12 13 14 15 16 17 18 15 20 21 Rev. No.: 4 4 4 4 4 4 4 4 4 4 3 Page No.: 22 23 24 25 26 ! Rev. No.: 4 4 4 3 4 Rev. No. 4 Date 02/87 i , 17[ [ - _ _ _ - _ - _ - - - - -
_ _ _ _ _ ---.--___ _ _ _ - . . .- - . . . PDP-6 . REM SYSTEM INSTRUCTIONS Table of Contents l Pace 1.0 PURPOSE 1 2.0 REQUIREMENTS AND ACCEPTANCE CRITERIA 1
3.0 SPECIAL EQUIPMENT 1 4.0 PREREQUISITES AND PRECAUTIONS 1 5.0 PROCEDURE 1 5.1 Data and Dosimetry Device Collection 1 5.2 REM System Maintenance 2 5.3 Annual Data Base Initialization 2 5.4 Data Base Initialization for each TLD Period 3 5.5 Daily Data Base Management 5 5.6 TLD Processing 6 5.7 TLD Preparation 6 5.8 Reading TLDs 6 5.9 TLD Data Processing 7 5.10 Report Generation 8 5.11 MPC-Hour Tracking 10 5.12 Neutron Dose Entries 10 5.13 Extremity Dose Entries 11 5.14 Dosimetry Mismatch 12 5.15 Special Exposure Evaluation 14 5.16 Authorization to Exceed Guides 14 5.17 Dosimetry Investigation 16 6.0 REFERENCES 17 7.0 ATTACHMENTS 18 Rev. No. 4 Date 02/87 Page i of PDP-6 _
, . . PDP-6 , . REM SYSTEM INSTRUCTIONS 1.0. PURPOSE This. procedure provides the REM system operator guidance in maintaining the computerized Radiation Exposure Management (REM) system. This procedure should be used in conjunction with Essential References 6.2.1 and 6.2.2 for operating the REM system. 2 .' O REQUIREMENTS AND ACCEPTANCE CRITERIA None 3.0 SPECIAL EQUIPMENT The REM system uses a Hewlett-Packard 9000 computer and associated mass' memory and printer for data input, storage, retrieval and output. Some of the information is also input using a Hewlett-Packard HP-85 and associated peripherals. 4.0 PREREQUISITES AND PRECAUTIONS 4.1 Do not attempt to run any of the software without fully understanding its purpose and effects on the stored data. This can only be accomplished through proper training. 4.2 Data bases should be created approximately 25 percent larger than needed to speed up search operation. 4.3 To enter programs referenced in this procedure, enter LOAD followed by the program name in quotation marks (" "). 5.0 PROCEDURE 5.1 Data and Dosimeter Device Collection 5.1.1 Collect the following items from the Radiation Protection Office o Extended RWP Entry Log cards located in the box at the access area of the Radiation Protection Office. o Returned TLDs. o Returned extremity badges. o TLD and extremity issue log sheets (as applicable). o Whole body counts. Rev. No. 4 Date 02/87 Page 1 of PDP-6 _ _ _ - _ _ _ _
- _ . . - - - . - - - - - - - - - - - - - - - - - - - - - - - - _ . - _ - . . .. 5.1.2 Collect the following items from the Dosimetry Records ' Off! m o Copy of the TLD Issue Sheets that contain entries not contained in the previous copies, o Returned TLDs. o TLD record cards that may have been selected for termination. 5.1.3 Pick up any Daily MPC-Hour Tracking Log sheets from the chemistry counting room. 5.1.4 Collect the completed RWPs and sign-in sheets from the Work Contrcl Center (WCC). 5.2 REM System Maintenance The program RMISA is used to perform all maintenance of the the personnel exposure and RWP data bases. This is divided into the following major tasks: o Annual data base initialization (section 5.3) o Period data base initialization (section 5.4) o Daily data base maintenance (section 5.5) 5.3 Annual Data Base Initialization Perform the following steps, in order, at the beginning of each year: 5.3.1 Using the CREATE A NEW YEAR option, create the new year by supplying the following information as requested: o Maximum number of trades o Maximum number of companies o Maximum number of departments o Maximum number of personnel o Maximum number of Form-4 entries 5.3.2 Using CREATE AN RWP DATA BASE option, create an RWP data base for the applicable year by supplying the following information as requested: o Maximum number of buildings o Maximum number of elevations o Maximum number of locations Rev. No. 4 Date 02/87 Page 2 of PDP-6
_ - _ . - - _ - - - . - - - - - - - - - -- - - - - . - - - - _ - - - - - - - - _ _ - - _ _ - - _ __ . . , o Maximum number of plant functions ~ o Maximum number of RWPs j o Maximum number of ALARA Reviews l o Maximum number of buildings, elevations, locations, I combinations 5.3.3 Verify that the status of all terminated people is IN- ACTIVE or TERMINATED. j s ( 5.3.4 Verify that all of the active people are updated through the end of the previous year. 5.3.5 Using the TRANSTER PERSONNEL TO A NEW YEAR option, trans- fer the people from the previous year to the new one. This will move all of the people who are system status - ACTIVE to the new year, total their period exposures and f store the totals in their appropriate places, and zero out the current year, quarter and period numbers. 5.4 Data Base Initialization For Each TLD Period 5.4.1 At the beginning of each TLD period, using the CREATE A NEW PERIOD option, create the appropriate period data bases by supplying the following information as re- 4 quested: Maximum number of people active during this period o o Maximum number of RWPs active during this period o Maximum number of different TLDs to be used o Maximum number of record exposure entries include room for a deep and shallow exposure for each TLD issue o Maximum number of non-record exposure entries o Maximum number of DRD entries to be included in the f working estimates o Maximum number of DRD entries NOT to be included in the working estimates Maximum number of record internal exposure entries o Maximum number of non-record internal exposure entries o 5.4.2 As close to issue time as scheduling permits before the beginning of each TLD period, anneal a sufficient number of TLDs to perform a TLD change. Include the TLDs to be used as BACKGROUND dosimeters in this group. 1 Rev. No. 4 Date 02/87 Page 3 of PDP-6 . _ _ _ _ _ _ _ _ _ _ _ - _ - - l
_ _ _ _ _ __-_ _ __ _ _ _ _ - _ _ _ _ _ _ _ __ ' . . . ... 1 . q 5.4~.3 Use the ' HP-85 . program called TLDCPT or the 9000 system , called SYISA. to collect and store the raw ' data. These - programs will create data files on their mass storage devices where - they store the raw TLD data as it is ! generated and transferred by the TLD reader. When the program requests the file name, use the file naming convention described in 5.6.3c of this procedure. 5.4.4 Raw Data Collection ' i a '. If the 9000 is used to collect raw data a menu of mass '!
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devices available is displayed. Select /TLD/ RAW: CS80,200 as the device to store the data on. b. If the HP-85 is used to collect raw data the file must be transferred to the 9000 system after it is collect- ed and stored on the tape cartridge. To do this, copy- the tape file to the 9122 disk drive or an equivalent device. Use the program called "SYISA" on the 9000 to transfer the data file. Select /TLD/ RAW:CS80,200 as the mass storage device to store the TLD data on. 5.4.5 Using the Field Dosimeter Manager option of SYISA create an Issue . file on TLD/ ISSUE:CS80,200 and process the anneal files. When the program requests the name of the Issue file, use the following file naming convention: o IAABB (I= issue, AA= year, BB=TLD period) e.g. 18618 = Issue file for 1986 for September 15 through September 30. o When the program says Enter the Maximum Allowable Exposure on a dosimeter to be issued, enter 10. o When the program asks Do You Want to Make the Dosi- meters Available for Issue, enter Yes. 5.4.6 Use the ASSIGN option of RMISA to batch assign the available TLDs to the active people with security badge numbers in the Personnel Exposure data base. This program generates a list of TLDs assigned and the indi- viduals they were assigned to in security badge order. It then prints the labels to put en the TLDs. 5.4.7 Take the annealed TLDs, the assignment list and the labels to the dosimetry issue office for assembly. 5.4.8 Using the ASSIGN option of RMISA, batch unassign the TLDs from the previous TLD period. This will enter the end wear date and time into the assignment data base for all of the TLDs issued in that period that have not already been un-assigned individually with the EDIT option, j 1 l Rev. No. 4 Date 02/87 Page 4 of PDP-6 ' - _ - _ - _ - _ _ _ _ _ _ _
- ..- - - - - - - - - - - - _ _ _ _ - - - - - - - - - - - - - - - - - _ - - - - _ . , . 5.5 Daily Data Base Management . ' Perform the following steps, in order, each working day: 5.5.1 Enter any new people who have not yet been entered, using the ADD option of RMISA. 5.5.2 Assign any TLDs issued since the last time this was done, using the ASSIGN option. Un-assign any TLDs returned since the last time this was done with the EDIT option. 5.5.3 Transfer all RWP and DRD data files from the HP-85 tapes to the disk that have not yet been transferred, using the SYSTEM MAINT option. 5.5.4 Update all of the RWP files to the RWP data base that have not yet been updated, using the UPDATE option. 5.5.5 Update all of the DRD files that have not been updated, using the UPDATE option. 5.5.6 Using the UPDATE option, update all of the TLD update files that were generated in 5.9 of this procedure since the last TLD update. The TLD update option flags the
operator if: a. A TLD is not assigned. Research the reason for the un-assigned TLD, correct the condition and rerun the update option if necessary. b. A TLD versus DRD disagreement exists as described in ! section 5.11 of this procedure. Proceed to section 5.11 for further instructions. 5.5.7 Forward the alphabetical listing of the Update printout to the Dosimetry records clerk. File the remaining portion of the printout in the appropriate Quarter j reports binder via the Dosimetry Supervisor. j l 5.5.8 At this time any daily reports can be generated. Refer to j section 5.7 of this procedure for specific reports to be j produced and instructions on distribution of reports, a. Using the EDIT option, change any terminated person's SYSTEM STATUS to INACTIVE. This should only be done after all DRD entries have been updated for the affected personnel. b. Using the EDIT option of RMISA, enter the date of any whole body counts (WBC) performed. If the comment portion of the WBC indicates the person is exiting, change his/her system status to INACTIVE. Forward the WBC to the Radiological Engineer. l Rev. No. 4 Date 02/87 Page 5 of PDP-6 t I
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.. . 5.6 TLD Processing . NOTE: Instructions for operation of the Panasonic Model. 210-710 TLD reader are given in Essential Reference 6.2.2 5. 6 '1 ' TLD Reader Preparation .! Before-processing the TLDs returned from the semimonthly badge change, verify that section.5.3 of PDP-7 has been performed successfully. .i 5.7' TLD Preparation 5.7.1 Before removing the TLDs from the transport container, frisk them and put any TLDs that are' greater than 100 cpm above background in.a plastic bag. Send these badges to ' the restricted area for decontamination. 5.7.2 Remove the TLDs.from their hangers and inspect for phys- ical damage such as broken filters, oil coatings or. moisture. 5.7.3 Read any TLDs with broken filters in a separate group and l dispose of them after reading. Carefully examine the results of these badges before updating the data to the personnel exposure data base. 5.7.4 011 coated TLDs cannot be used to determine record - exposures. Dispose of these. TLDs and have Special i Exposure Evaluations initiated'by the dosimetry clerk for these individuals. 5.7.5 Wipe off wet TLDs using a paper towel, partially withdraw the. element plates from the TLD taking care not to mix them up and put the TLDs in the desiccator for at least 12 hours prior to reading them, j l 5.7.6 It is recommended that TLDs be sorted in numerical order to facilitate locating a particular badge. . . 5.8 Reading TLDs I 5.8.1 Each day that TLDs are read to determine record expo- sures, pickup three background TLDs from the security building for each batch that is to be read that day. l , Read these TLDs as part of the batch. ] a 5.8.2 Put the required number of run QC TLDs into the batch as instructed in 5.8 of PDP-7. . 1 NOTE: Refer to Volume 2 of the software vendor supplied { documentation for specific program operating ! instructions. , i Rev. No. 4 Date 02/87 Page 6 of PDP-6 i .l
f c 3 .. 5.8.3 ..Use one of the following: -(1) TLDCPT for the HP-85, or
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(2)L the- program for - the 9000 system called SYISA to collect and store the raw data. These programs will- create data files .on 'their mass -storage devices where they store the raw TLD data as it is. generated'and transferred by the TLD reader. .When the program requests the file name, use the fol'1owing file naming convention: ABBCCD where A= file type R for personnel exposure read data, A for anneal data or C for reader calibration or QC data BB = year the data is being generated for.(e.g. 86) CC = badge period the data is being generated.for.(05'= 1 3/1 through 3/14) D,= Alphabetical sequence of file type in specific period (e.g., R8617A = first file of exposure read . data for 9-1 though 9-14 in 1986 or A8610C = third file of anneal data for 5/15 through 5/30 in 1986). 5.8.4 If the 9000 is used to collect raw data, a menu of mass storage . devices available is displayed. Select /TLD/ RAW:CS80,200 as the device to store the data on. If the HP-85 is used to collect raw data, the file must be transferred to the 9000 system after it is collected and stored on the tape cartridge. To do this, copy the tape file to the 9122 disk drive or an equivalent device. .Use the program called "SYISA" on the 9000 to transfer the data file Select /TLD/ RAW: CS80,200 as the mass storage device to store the TLD raw on. 5.9 TLD Data Processing Use the Field Dosimeter Dose Processing option of the program called "SYISA" on the HP-9000 to generate deep and shallow doses from the TLD raw data. 5.9.1 When the program requests the number of the CALIBRATION dosimeters and prints a report on them, verify that the run calibration factor for each element is 1.0 * 0.3 by performing the following calculation: "*#8 fem
run calibration factor (Element N) = g tN NOTE: If the run calibration factor exceeds 1.0+0.3 for any element, stop TLD processing and notify the Dosimetry Supervisor. Do not resume processing without approval from the Dosimetry Supervisor. Rev. No. 4 Date 02/87 Page 7 of PLP-6 . _ _ _ _ .
- _ _- --. -- -_. . . . . 2 .9.2 Press RETURN when'the program says Enter the Number for 5 Each CONTROL Dosimeter. No control badges are used. - 5.9.3 When the program requests the. number of the BACKGROUND dosimeters and prints a report, verify .that the average of each of the' elements'of the background is greater than 15mR. Answer "Yes" when the program asks if the back- grounds-should be subtracted from the' field dosimeters. 5.9.4 When the program asks if the results should be stored in the issue file, answer "Yes". 5.9.5 After the raw data files have been processed and . the results stored in the issue file, use the program called' TLUPDT to create an update file and store the data generated in steps a through d. This will make the TLD results available to the REM system for updating to the Personnel exposure data base. Select TLD/ UPDATE:CS80,200 as the mass storage device to store the updated file on. 5.10 Report Generation 5.10.'1 The following is a list of the reports to be generated using the REPORT option of RMISA: TITLE FREQUENCY DISTRIBUTION l Daily Exposure Report Non-outage - 3 times /wk See list posted in by Department Outage - daily. REM system area After all DRD entries are made. Daily RWP ALARA Daily after all DRD ALARA Supervisor Report entries are made. Termination Report Within 30 days after Original + 1 copy termination. to dosimetry records Form NRC-5 Quarterly for each Dosimetry records active individual with complete exposure history. With. termination report for terminated personnel with complete exposure history. NRC 20.407 Report Annually within 90 days Radiological of beginning of year to Engineer cover the previous year. Regulatory Guide Same as NRC 20.407. Radiological 1.16 Report Engineer Rev. No. 4 Date 02/87 Page 8 of PDP-6 __ _ _ - _ _ _ _
- __ _ _ _ _ _ __ _ _ _ _- . .. . '5.10.2 The following is ' a list of the reports to be generated- .usin? the-program called QUERY: - TITLE FREQUENCY DISTRIBUTION . Annual Departmental At the beginning of. Radiological- Personnel Exposure each year for the Engineer, RES Report- previous year after Superintendent, TLD results have been Manager Radio- updated. logical Health & Chemistry (WPO). MPC-Hours Report Each day that MPC-Hours- Miscellaneous are entered and at the - Reports Binder via beginning of each the Dosimetry quarter to cover the Supervisor preceding quarter. Neutron Exposures At the end of each Miscellaneous Report badge period that Reports Binder via neutron tracking was the Dosimetry performed and at the Supervisor. beginning of each Dosimetry records quarter after the " previous quarter's neutron badge results have been updated. Extremity-Exposures -Same as Neutron Same as Neutron Report- Exposures Report. Exposures Report TLD vs. DRD At the beginning of Miscellaneous Disagreements Report each month after the' Reports Binder via Disagreements for the the Dosimetry preceding month have Supervisor been initiated. Special Exposure At the beginning of Miscellaneous Evaluations Report each month after the Reports Binder via Special Exposure the Dosimetry Evaluations for the Supervisor preceding month have been completed. Shallow Exposures At the beginning of Miscellaneous Report each badge period Reports Binder via after all of the TLDs the Dosimetry for the previous period Supervisor have been processed. TLDs Not Returned At the beginning of Miscellaneous Report each badge period Reports Binder via after all of the TLDs the Dosimetry for the previous period Supervisor have been processed. Rev. No. 4 Date 02/87 Page 9 of PDP-6 _ _ _ . _ _ _ _ . . _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ - _ - _ _
, , . , . TITLE FREQUENCY DISTRIBUTION l . Whole Body Counts Weekly. Same as Daily Due Report Exposure Report by Department 5.11 MPC-Hour Tracking 5.11.1 Fill in the Daily MPC-Hour Tracking Log (RPOP-6 Figure) with the information available on the returned RWPs. Us- ~ing the Effective MPC from the front side of the log sheet, -(Effective MPC = Effective MPC% ) 100 and the exposure times from either the front of the log sheet if available or the back of the RWP, calculate the ! MPC-Hours using the following formula and enter this on ' the log sheet. . (MPC-Hours = Effective MPC x Exposure Hours) 5.11.2 Using the EDIT option of RMISA, enter the information in- to the personnel exposure data base in the appropriate period. 5.11.3 Place the Daily MPC-Hour Tracking Log sheet into the Mis- cellaneous Reports logbook. l 5.11.4 Each day that MPC-Hour entries are made, run an updated MPC-Hour exposure summary list in accordance with section 5.10 of this procedure and put the summary list in the Miscellaneous Reports binder. 5.11.5 Notify the Dosimetry Supervisor of any individual receiv- ing more than 2 MPC-Hours in a 24 hour period or 10 MPC- Hours in a seven day period. These individuals can be identified by comparing the updated list to previous lists. I 5.12 Neutron Dose Entries 5.12.1 Perform neutron exposure tracking for any RWPs stamped with " NEUTRON DOSE RATE _ mrem /hr" using the Neutron Tracking Form (Figure 2). Neutron Dose Rate (mrem /hr) x Exposure (Neutron Dose = i Time (hrs) ( 5.12.2 Using the EDIT option of RMISA, enter the neutron dose into the personnel exposure data base in the appropriate i period. j
i i Rev. No. 4 Date 02/87 Page 10 of PDP-6 _ _ _ - _ _ _ _ _ - _ _ _ _ _
_ _ _ _ _ __ - . .: ,. 5.12. 3 ' Place ' the'- Neutron Tracking Form in the Miscellaneous l Tra c'<ing logbook. - 5.12.4- When the neutron badge results become available from I Landauer, use the EDIT option ' of RMISA to reflect these ( results for the entries made that required a neutron < badge.to be worn. ! l 5.12.5 Each period that neutron dose entries have been made, run d an updated Neutron Exposure Report in accordance with sec- { tion 5.10 of this procedure and put it in the Miscella- - neous Reports binder. Send a copy of this report to the dosimetry records personnel. , 5.13 Extremity Dose Entries 4 5.13.1 Before processing extremity TLDs, insure that run QC TLDs 1 have been processed within the preceding 24 hours. If no ! run QC TLDs have been processed, read three of them into a data file and process them as instructed in 5.8.2 of . this procedure, l 5.13.2 Sort the badges into the same order they are listed on the Extremity Issue Sheet (PDP-5, Figure 1). Remove the extremity elements from their holders and in- spect them for damage or contamination (water, oil, etc.) { Clean and dry them off if necessary.
CAUTION: Once the elements are. removed from their hold- ' ers, they cannot be distinguished from one an- other.. DO NOT GET THEM MIXED UP. il 5.13.3 Place the elements into the UD807-HA1 adapter and put J them into a reader tray in the same order as they are i l. I listed on the issue sheet. Be sure the elements are loaded as specified on the adapter " phosphor this side". 5.13.4 Read the TLDs using the HP-85 program called TLDCPT. Re- cord the results on the Extremity Badge Issue sheet and I calculate the extremity dose for each element. (Extremity Dose (mrem) = Extremity Element Reading (mR) x l ) 1.2) 5.13.5 Record these results on the Extremity Issue sheet. 5.13.6 Transcribe the DRD totals from the RWP to the Extremity isst.e sheet. 5.13.7 Using the EDIT option of RMISA, update individual expo- sure files in the appropriate period and wear location. The Extremity Issue sheet should specify a wear location of HAND or FOOT. Rev. No. 4 Date 02/87 Page 11 of PDP-6 l .. _ _ - - _ _ - - - -
_ __ _ _ _ _ _ . . . 5.13.8 Calculate extremity exposures using the following criraria. - o The same extremity exposure should be entered for the right and left hand or foot unless there was a badge issued for each extremity. o The value entered should be the difference between the extremity dose and the DRD reading. Do not make any entry for individuals whose extremity o dose is less than 120 percent of the DRD reading. , ! 5.13.9 Generate an Extremity Exposure Report as described in section 5.10 of this procedure, each period that extremi- ty dose entries are made. Put the report in the Miscel- laneous Reports logbook and send a copy to the dosimetry records personnel. 5.14 Dosimetry Mismatch 5.14.1 Identification of Discrepancies A discrepancy of DRD and TLE results that meets both of the following criteria shall be investigated: o Greater than 50 percent difference between the DRD and TLD results. This difference, shall be termed a Dis- crepancy Factor (DF), is calculated by: l DF = DRD - TLD x 100 TLD o Greater than 100 mR difference between TLDs and DRDs. 5.14.2 Disagreement Investigation Initiation a. Print out a TLD Versus DRD Disagreement memo for each i required investigation. Refer to Figure 1. b. Using the program called QUERY, update the NGRM data base with the information available, c. Anneal the TLDs worn by these individuals and forward them to the dosimetry technician for irradiation tesr- , ing. l d. Using the form shown in Figure 3, send a message to the individuals' supervisors instructing them to tave their people return their DRD for source and d2ift testing. File a copy of this in the working file. I 1 Rev. No. 4 Date 02/87 Page 12 of PDP-6 - _ _ _ _ _
__-______ -_____ _- __ ___-_ -_ - - _ _ __ __-__- - - _ _ _ _ _ - . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . . . _5.14.3 Dosimetry Personnel. Investigation . a. Check both the TLDs and DRDs for contamination. b'..-Irradiate the TLDs to a-known dose using the Shepherd Model 142-10 irradiator. Allow approximately 24 hours, for fading. Read the TLDs and record the results on the Disagreement memo (Figure 1), c. Perform a source check and drift check on the DRDs in accordance with PDP-3. Record the results on the Dis- agreement memo (Figure 1). l' d. Complete the dosimetry comment portion of the Dis- agreement memo with any-information that may be avail- able_or any explanation'for the disagreement that may have been determined. '5.14.4 Disagreement Form Routing a. Submit initiated Disagreement Forms to the Dosimetry Supervisor for review then forward them to the.appro- priate department _ superintendent. b. File a copy.of these in.the working file and at this time make a copy of any previously issued Disagreement Forms. ! 5.14.5 Department Investigation a. The department supervisor should confer with the work- er involved in the disagreement if the worker is avail- able. Occasionally the worker has terminated employ- ment at the site prior to the memo being issued. In this case, the department supervisor is responsible for commenting on the disagreement. ! b. The department supervisor and/or worker can choose to accept the REM system personnel findings (if any) or provide any pertinent information which may explain the discrepancy, c. The supervisor and the worker (if available) will sign the Disagreement memo and forward it to the Radiologi- cal Engineer for review. 5.14.6 Engineer Review i a. If the explanation for the discrepancy is acceptable, no further action is required and the memo will be i Rev. No. 4 Date 02/87 Page 13 of PDP-6 -
l , o , . . . signed, dated and returned to the REM system' personnel by the-Radiological Engineer. Using the_ program call- i - ed QUERY, update the NGRM data base, remove the copy from the working file and forward the original memo to the dosimetry clerk for filing. .; . i b. If the explanation fo - the discrepancy is unaccept- able, the Radiological Engineer will determine any re- quirement for further investigation. .This may vary with each incident based on data, DF classification, { predominant work area, etc. The Radiological Engineer will initiate any necessary corrective actions, attach investigation results to the memo and return it to the . REM system operator for updating and filing. 5.15 Special Exposure Evaluation A Special Exposure' Evaluation is initiated by the dosimetry clerk or R&E technicians and is forwarded to the REM system personnel (Figure 9 of PDP-1). , 5.15.1 Using the program called QUERY, generate a listing of all of the DRD entries stored in the appropriate period data base. Attach the listing to the Special Exposure Evalua- tion and return it to the dosimetry clerk for completion. 5.15.2 The dosimetry clerk will complete the Special Exposure Evaluation and forward it to the Dosimetry Supervisor for review and signatures, then forward it to the REM system ! operator for updating. . 5.15.3 Using the UPDATE option of RMISA, enter the exposure for the individual from the Special Exposure Evaluation. i 5.15.4 Using the -program called QUERY, update the LBRS data base, fill in the REM system update date and time on the Special Exposure Evaluation and forward it t-o the dosi- . metry clerk for filing. ! 5.16 Authorization to Exceed Guides Authorizations are generally initiated by the REM system op- erator, however, they may also be initiated by the individu- al's supervisor or the Dosimetry Supervisor. 5.16.1 Initiation of Authorization Working from the Daily Exposure Report described in section 5.10 of this procedure, select the individuals who are likely to need authorization to receive an amount of exposure in excess of what they are currently authorized to receive. Initiate an Authorization to Exceed Radiation Exposure Guide using one of the following forms: Rev. No. 4 Date 02/87 Page 14 of PDP-6 - _ - _ - _ _ _ _ _ _ _
_. _ - . _ _-_ - _ _ _ _ _ _ _ _ .. .. - , o Figure.4~-'if the individual is approaching _the 1,000. trem quarterly ;or the 4,000 mrem annual exposure . guides. o- Figure 5 - if the individual is' approaching the 2,000 mrem quarterly or the' 5,000 mrem annual or the 500 3 mrem gestation period exposure guides. 1 J 5.16.2 Complete section "A of the Authorization to Exceed'Ra- 'diation Exposure Guides and forward'them to the Dosimetry Supervisor. 5.16.3. The Dosimetry Supervisor will review the potential author- izations and current departmental exposure report and gen- erate a list'of TLDs to be changed based upon: a. DRD estimM es totaling greater than 200 mrem for the individuair who are candidates . for authorization of L greater than 2,000 mrem for the quarter. b. -Individuals whose DRD estimate total is greater than 75 percent of their current quarter authorization. c. Individuals those quarterly authorization is greater than 2,000 mrem and DRD estimates total greater than 200 mrem. 5.'16.4 The Dosimetry Supervisor will review the individual's exposure history file'to verify: o Completeness of'the Form NRC-4 and associated documen- tation o Completeness of exposure records for the current visit (e.g., no uncompleted Special Exposure Evaluations) o The unused part of permissible accumulated dose is sufficient enough to allow the authorization to con- tinue. 5.16.5 The Dosimetry Supervisor will then complete section "B" of ' the Authorization and forward it to the appropriate department superintendent for approvals. I= 5.16.6 The department superintendent should review the author- l ization and determine if it will be needed. I a. If it is not needed, he/she should return the incom- plete Authorization to the REM system personnel. b. If it is needed he/she should complete section "C", ! approve in section "D", and forward it to the RES ! Superintendent for further approvals. j ' Rev. No. 4 Date 02/87 Page 15 of PDP-6 _ _ _ _ _ _ _ _ _ _ -
_ - - _ - _ _ _ _ - - - - _ _ - - _ - _ - - _ _ , . . .- i 5.16.7 The following approvals are required before the Author-
ization is considered valid:
- a. Greater than 1,000 mrem but less than 2,000 l mrem / quarter - Department Superintendent and RES Superintendent. b. Greater than 2,000 mrem / quarter or 4,000 mrem /yr but i less than 5,000 mrem /yr - same as 5.16.7(a) plus the l Superintendent of Power. I c. Greater than 5,000 mrem / year or 500 mrem / gestation period - same as 5.16.7(b) plus the Resident Manager. i NOTE: The Dosimetry Supervisor will establish the new exposure authorization at the maximum allowable for that authorization level. If any of the in- dividuals required for approval wish to reduce this value, they should cross off the old value, enter the reduced value and initial the entry. t 5.16.8 After all of the required approvals have been obtained, The Authorization will be returned to the REM system per- sonnel. Using the EDIT Option of RMISA, enter the new exposure authorization, initial the form as entered and forward it to the dosimetry clerk for filing in the indi- vidual's file. 5.17 Dosimetrv Investigation Bas upon the listings of Special Exposure Evaluations and TLD Versus DRD Disagreements produced as described in sec- tion 5.10 of this procedure, the Dosimetry Supervisor will
initiate dosimetry investigations. 5.17.1 Dosimetry investigations will be initiated using the Dosimetry Investigation form (Figure 6) whenever: o An individual loses more than one TLD in a month. An individual loses more than two TLDs in a quarter. o o More than one TLD Versus DRD Disagreement is generated in a month for an individual. i ) o More than two TLD Versus DRD Disagreements are gen- ' erated in a quarter for an individual. o An individual exceeds an exposure authorization by , more than 10 percent. 5.17.2 An interview will be conducted with the employee, depart- l ment supervisor and RES Supervision to determine the cause of the occurrence and instruct the individual on methods of avoiding recurrence. Rev. No. 4 Date 02/87 Page 16 of PDP-6 l 3 _ _ _ _ _ _ _ _ _ _ _ _ _
_____ 6 . . 4 5.17.3 Verification of the evaluation results will be made by one of the following methods: - If loss of TLDs caused the investigation, at least two a. checks of the individual's security badge or person will be made to verify he/she has the proper TLD. b. If TLD Versus DRD Disagreement caused the inves- tigation, the individual's TLD will be changed at ran- dom times at least twice to verify the DRD readings accurately estimate the individual's exposure. 5.17.4 If exceeding an exposure authorization caused the ini- tiation, the individual will not be issued another TLD until the appropriate authorization as described in sec- tion 5.16 has been completed. 5.17.5 If these verifications fail to show the problem has been resolved cr if any evidence of willful or premeditated alteration of personnel dosimetry equipment or records exist, documented counseling by upper level management should be performed with consideration given to disci- plinary action. 5.17.6 A file is maintained in the Dosimetry Supervisor's Office of investigations in progress and investigations that have been completed. 6.0 REFERENCES 6.1 Background References ' 6.1.1 10 CFR 20 6.1.2 Regulatory Guide 1.16 6.1.3 PDP-1, Dosimetry Records Procedure 6.1.4 PDP-2, Use and Control of Direct Reading Dosimeters 6.1.5 PDP-3, Direct Reading Dosimeter Calibration 6.1.6 PDP-5, Extremity Badge Issue and Control 6.1.7 PDP-7, Dosimetry System Quality Control Procedure 6.1.8 PDP-8, Personnel Neutron Monitoring (in draft) 6.1.9 RPOP-6, Thermoluminescence Dosimetry Data Processing 6.1.10 RPOP-7, Radiological Incident Investigation Rev. No. 4 Date 02/87 Page 17 of PDP-6 _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ . . . 6.1.11 RPOP-8, Neutron Surveys and Personnel Monitoring . 6.2 Essential References / Controlled Documents 6.2.1 Thermoluminescence Dosimetry Data Processing 6.2.2 Panasonic TLD Manual 7.0 ATTACHMENTS 7.1 Figure 1, TLD Versus DRD Disagreement form 7.2 Figure 2, Neutron Tracking Form 7.3 Figure 3, DRD Exchange memorandum 7.4 Figure 4, Authorization to Exceed Exposure Guide of 1,000 - i mrem / Quarter or 4,000 mrem / Year 7.5 Figure 5, A2 theorization to Exceed Exposure Guide in Excess j of 2,000 mrem / Quarter, 5,000 mrem / Year or 500 mrem for a Gestation Period j i 7.6 Figure 6, Dosimetry Investigation l i l i ) i Rev. No. 4 Date 02/87 Page 18 of PDP-6 l
_ . _ _ . _ _ _ . _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ , Jtmss A. Fit Pstrick ' , . Nucinar Powtr Plant E U N<.4 urk13093 . TLD VERSUS DRD DISAGREEMENT 315 312 n : Memorandum '
- > NewYorkPower
4# Authority . MEMORANDUM TO: FROM: DOSIMETRY SUPERVISOR SUBJECT: TLD VERSUS DRD DISAGREEMENT The Radiological and Environmental Services Department is conducting an investigation concerning the observed disagreement between the TLD and direct reading dosimeter values for the person listed below. Please review the data and assist by providing information which could explain the dis- crepancy. You are requested to complete this form and forward it to George Vargo within 10 working days. This form is being sent to you on .Date: Name: TLD No.: Dosimeter Period in TLD Reading in Direct Reading Dosimeter Question: mR: Total in mR: Discrepancy Factor = ~
TLD mR TLD Serial #: was tested on: and indicated a performance mR Measured - mR Delivered (allowable = 0.5) factor = = mR Delivered i DRD #: was tested on: and indicated a performance m easured - mR Delivered (allowable = ! 0.1) factor = = mR Delivered i DRD drift check indicated % of full scale in 24 hours.(allowable = 2.0%) Dosimetry Personnel Comments: 1 ( i Signed: Date: Rev. No. 4 Date 02/87 Page 19 of PDP-6 _ _ _
l t.c .. o Figure 1 ) l
TLD VERSUS DRD DISAGREEf1ENT ] . ! { l ! I Appropriate Department Supervisor Comments / Method of Resolving Discrepancies: 1 l i i l ! !
l J Worker Signature: Date: Dept. Supv. Signature: Date: ______________________________________ =___ _ -______= _- -________________ Radiological Engineer Review Further investigation [] is [] is not required. Comments: l i Signed: Date: Rev. No. 4 Date 02/87 Page 20 of PDP-6 _ _ _ _ _ _ _ _ _ _ _ _ - _ - _ _ _ -
_ _. _ _ _ _ _ . _ _ _ . _ - _ _ _ _ _ _ _ - _ - 1 I . . Figure 2 . . NEUTRON TRACKING FORM . I Neutron Neutron Exposure Badge Dose Rate Time Neutron Update Required Name Badge # RWP # (mrem /hr) (hrs) Dose Date Yes No_ l Rev. No. 3 Date 06/86 Page _21 of PDP-6 _-- -__-____
, _ _ _ _ _ _ - - - - -. . . J: mss A. Fit:Pctrick F1 ure 3 3 Nuchar Powar Pl2nt v An r g Ne a vek 13093 315 342 3W Memorandum '
- > NewYorkPower
4# Authority DATE: MEMORANDUM TO: (Dept. Supt.) FROM: DOSIMETRY SUPERVISOR SUBJECT: DRD EXCHANGE Please have ~ the following personnel in your employment report to the DRD issue area to exchange their direct reading dosimeter before making their next entry into the restricted a g : ! DOSIMETRY SUPERVISOR Rev. No. 4 Date 02/87 Page 22 of PDP-6
. < Figure 4 . Authorization to Exceed Exposure Guide in Excess of 1,000 mrem / Quarter or 4,000 mrem / Year . A. Name TLD # is submitted for authorization to exceed the (calendar quarter, calendar year) whole body exposure guide for the period beginning and ending . Current quarter exposure mrem as of . Current annual expocure mrem as of . Initiated by Date B. TO BE COMPLETED BY DOSIMETRY SUPERVISOR OR DESIGNEE: This authorization permits the individual named above to receive a total of l up to mrem during the previously defined period. Form NRC-4 complete? Unused part of permissible accumulated dose rem as of the beginning of this quarter. Additional information pertinent to this authorization Completed by Date C. TO BE COMPLETED BY INDIVIDUAL'S DEPARTMENT: Employer Trade Immediate Supervisor Work area or job to be performed Individual notified authorization is being processed signature D. APPROVALS: Dept. Superintendent Date RES Superintendent Date EXPOSURE IN EXCESS OF ANNUAL GUIDE: Superintendent of Power Date Rev. No. 4 Date 02/87 Page 23 of PDP-6 ___ _ _ _ _ _ _ _ _ _ _ _ _ -
g > . . Figure 5 . Authorization to Exceed Exposure Guide in Excess , l of 2,000 cren/ Quarter, 5,000 mrem / Year or 500 mrem for a Gestation Period
l A. Name TLD # is submitted for authorization to exceed his/her (calendar quarter, calendar year, gestation period) exposure authorization for the period beginning and ending . Current quarter exposure total mrem of which mrem is by TLD through and mrem is by DRD through . Current annual or gestation period exposure mrem. Initiated by Date B. TO BE COMPLETED BY DOSIMETRY SUPERVISOR OR DESIGNEE: This authorization permits the individual named above to receive a total of up to mrem during the previously defitied period. Form NRC-4 complete? Unused part of permissible accumulated dose rem as of the beginning of this quarter. Additional information pertinent to this authorization Completed by Date C. TO BE COMPLEIED BY INDIVIDUAL'S DEPARTMENT: Employer Trade Immediate Supervisor Work area or job to be performed Describe methods to be used to minimize exposure on this job such as verify necessity of performing job at this time, preplan meetings, mock-up training, decontamination efforts. Reference applicable ALARA Review numbers: Rev. No. 4 Date 02/87 Page 24 of PDP-6
.. . Figure 5 . i t, ' Authorization to Exceed Exposure Guide in Excess 7, of 2,000 nrem/ Quarter, 5,000 mrem / Year or 500 mrem for a Gestation Period - .I . l ,Cp TO BE COMPLETED BY INDIVIDUAL'S DEPARTMENT (continued): Other available qualified individuals Current Quarter Current Year Name (mrem) (mrem) _ l ' ! l - Individual notified authorization is being processed signature D .' APPROVALS: Dept. Superintendent Date RES Superintendent Date Superintendent of Power Date EXPOSURE IN EXCESS OF ANNUAL OR GESTATION PERIOD GUIDE: Resident Manager Date ! cestation period only - attach physician's statement. l l l l i l 1 Rev. No. 3 Date 06/86, Page 25_ of PDP-6 l 1 t ______________________-_-_A
-______-_ _ _, _ __
t Figure 6 . DOSIMETRY INVESTIGATION Initiating date . Individual's name Company . - ,TLD # , Security badge # SSN INITIANING CIRCUMSTANCES: , ' s. r g J l- ! - e a INTERVIEW CONDUCTED: Date
- '
Comments < L pi Attendees Individual Signature Date ~ h Dept. Supv. Signature Date RES Supv. Signature Date VERIFICATI0'NG' PERFORMED: (1st) Date __,_ By Results . . - (2nd) Date _ By Results _ .p a -.
, , f RADIOLOGICAL ENGINEER REVIEW: Further evaluation requir'ed: [: ) Yes [] No Comment: - Signature ___. Date RES SUPERINTENDENT REVIEW: Further evaluation required: [] Yes [] No Comment: Signature Date Rev. No. 4 Date 02/87 Page 26 of PDP-6 _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ .. ., . NEW YORK POWER AUTHORITY JAMES.A. FITZPATRICK NUCLEAR POWER PLANT - 3 RADIOLOGICAL AND ENVIRONMENTAL' SERVICES DEPARTMENT , PROCEDURE NO.: PDP-7 TITLE: DOSIMETRY SYSTEM CALIBRATION AND. QUALITY CONTROL PROCEDURE PORC Review No./Date Meeting No. N/A Date 5'//f/F7 Approved By: w , Resident Manager 8g Approved By: A m_ Radiological an'd Environ tal Services Superintendent ~? p n - - .. fO qnq " ~ ikb. . 2_. ,, y !- I[ 0 @ _ '~ '- ' -- Page No.: 1 1 2 3 4 5 C 7 8 9 10 Rev. No.: 2 3 2 2 2 3 3 3 3 3 3 Page No.: 11 12 13 14 Rev. No.: 3 2 3 2 1 Rev. No. 3 Date 05/87 e .
- _ . ____ _ _ _ _ - 3 .. . . PDP-7 . DOSIMETRY SYSTEM CALIBRATION AND QUALITY CONTROL PROCEDURE . Table of Contents Page 1.0 PURPOSE 1 2.0 REQUIREMENTS AND ACCEPTANCE CRITERIA 1 3.0 SPECIAL EQUIPMENT 2 4.0 PREREQUISITES AND PRECAUTIONS 2 5.0 PROCEDURE 3 5.1 Independent System Tests 3 5.2 Neutron Dosimetry 5 5.3 In-house TLD Testing Program 6 5.4 UD-807 Extremity TLD Testing 7 5.5 TLD Reader Calibration 7 5.6 New Equipment Acceptance Tests 9 5.7 Routine TLD Testing 10 5.8 TLD Processing QC 11 5.9 REM System Software Quality Control 11 6.0 REFERENCES 12 7.0 ATTACHMENTS 12 Rev. No. 3 Date 05/87 Page i of PDP-7 _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ - _
. _ - _ _ _ _ - _ _ _ _ _ _ _ _ - _ - . . . PDP-7 . DOSIMETRY SYSTEM CALIBRATION AND QUALITY CONTROL PROCEDURE 1.0 PURPOSE This procedure is designed to assure that the personnel dosimetry system meets or exceeds current performance re- quirements. 2.0 REQUIREMENTS AND ACCEPTANCE CRITERIA 2.1 Radiation Protectin Manual General requirements of testing, calibration and quality assurance of dosimeters and NVLAP accreditation are given in Chapter 7, Section 7.11. 2.2 In - House Semimonthly Performance Tests Using the performance standard specified in ANSI N 13.11, Criteria for Testing Personnel Dosimetry Performance, the following acceptance criteria and limits apply: 2.2.1 Action Level The Action Level is a level which, if exceeded, indicates degraded TLD system performance. If the action level is exceeded, TLD processing shall be terminated and the Dosimetry Supervisor and the Radiological Engineer shall be notified. TLD processing may only be resumed following an evaluation by the Dosimetry Supervisor or the Radiological Engineer and a semimonthly performance test has been successfully completed. The Action , Levels for semimonthly testing are: { lBl + S >0.3 for any test. l
l The value of lBl + S changes by more than 0.2 from the preceeding test, except following maintenance or recalibration of the TLD reader. 2.2.2 Alert Level The Alert Level indicates a potential degradation in system performance. If the Alert Level is exceeded, the Dosimetry Supervisor and the Radiological Engineer shall be notified and the potential causes investigated. The Alert Level for semimonthly testing is: lBl + S >0.15 for three consecutive tests. I s, Rev. No. 3 Date 05/87 Page 1 of PDP-7
q .. , . 3.0 SPECIAL EQUIPMENT. - 3.1- The dosimetry device used at JAF,is the Panasonic Model UD-812AS Thermoluminescent Dosimeter (TLD) which consists of four depleted Lithium Borate (7Li 11B 0,.CU) phosphor 9 f l- elements. When inserted into the ' hanged 'the following filtering is provided: Element 1 = - 11 mg/cm2 Element 2 - 56 mg/cm2 ) Element 3 ' 300 mg/cm2 1 Element 4 = - 1000 mg/cm - 2 Each dosimeter is identified with a serial number which is i punch hole coded into the dosimeter and typed onto the label of the dosimeter. 3.2 The exposure accumulated by the TLD is measured using a Panasonic Model UD-710A TL Badge Reader. < 3.3 In-house test exposures are made with a Shepard Model 142-10 irradiator and an Eberline depleted uranium slab to test for whole body and skin exposures respectively. 4.0 PREREQUISITES AND PRECAUTIONS 4.1 Observe all standard precautions for handling radioactive materials as outlined in the plant Radiation Protection Manual. 4.2 Record all data pertinent to calibration testing and QC not already documented, as well as the date, time, nature of and reason for any repairs or preventative maintenance in the Dosimetry Maintenance Log Book. The log book shall be maintained by the Dosimetry Supervisor. This log shall be reviewed quarterly by the Radiological Engineer with a line entry in the log. Rev. No. 2 Date 05/87 Page 2 of PDP-7 ' _ _ _ - _ _ _ _ _ _ . . _ _ _
- -___- _ _ _ . . . 5.0 PROCEDURE . 5.1 Independent System Tests An independent testing laboratory shall be retained to determine the performance of the TLD system. The following is a description of the program used at JAF. 5.1.1 Test Categories and Test Ranges The UD-812AS2 TLD presently being used at JAF is saeci- fically designed for use as a high and low energy photon and beta dosimeter. Typically, in a BWR, the type of radiation exposure received by an individual is a mix- ture of these three radiations with the predominant type being high energy photons. Exposure to a pure beta or pure low energy source is highly unlikely. Therefore, the test categories that have been selected are as fol- lows: Category Description _ II - Accidents, high energy photons (Cs-137 gamma radiation) IV - High energy photons VI - Photon mixtures (any combination of low energy and high energy photons) VII- Mixtures, photons and beta particles (any com- bination of Sr-90 and Y-90 and high energy photons). 5.1.2 Test Frequency and Requirements Minimum testing requirements shall include one complete test per category per year. a. At least 15 TLDs shall be irradiated for any given test category. An additional 15 TLDs should be added for each additional reader being tested, b. Include at least three additional TLDs to be irradi- ated to a predetermined exposure (Cs-137) to be used as audit badges. c. Include a minimum of three TLDs as shipping (back- ground) controls. d. If the exposure interpretation from more than two of the dosimeters irradiated in a given category have to
be voided because of problems caused by either the I testing laboratory or the processor, statistical analysis of the results of this category shall be Rev. No. 2 Date 05/87 Page 3 of PDP-7
- - _ - _ _ . . . ,. delayed until replacement dosimeters have been sub-- ' mitted and irradiated and the results reported by the processor to the testing laboratory. 5.1.3 UD-812 Test Schedule (whole body and skin dosimetry) a. Each test shall extend over a period of six months in three groups. b. The test TLDs shall be submitted to the testing laboratory in three separate groups, preferably at two month intervals. It will not be necessary to withhold shipment of a group pending receipt of the group previously sent. c. Each group shall be returned by the testing labora- tory to the plant within one month from receipt. The audit dosimeters (irradiated with Cs-137) shall be identified. The category of the test dosimeters shall not be divulged to the processor. d. The TLDs should be read within 48 hours from the date received into the RES Department. The results should be sent out to the testing laboratory within 10 days of the receipt of the test batch. The following minimum information shall be included in the report to the testing laboratory: (1)' Receiving date (2) Reading date (3) Deep exposure (blind test TLDs) (4) Shallow exposure (blind test TLDs) 5.1.4 TLD Selection a. A random number generating program shall be used to determine which TLDs are to be shipped for testing. Since a large number of TLDs are in use or otherwise unavailable for testing, a list of 100 random numbers within the range of the TLD numbers available is generated. b. Select the TLDs in the order specified by the random number program, skipping only those that are not available at the time of selection. Cross off those numbers not selected from the list. c. Anneal the selected TLDs insuring that all elements have less than 10 mrem residual exposure. d. Wipe off the TLDs using white Masslinn towel, damp- ened with a solution of 50 percent methanol and 50 ! Rev. No. 2 Date 05/87 Page 4 of PDP-7
- - _-____ _ _ - _ _ - - _ _ _ - _ _. . - - - _ .. .. .. percent demineralized water. This will remove undetectable contamination that could affect the test results,
l e. Package the TLDs--and ship them to the' testing labor- ' i. atory. 5.1.5 Dissemination of Test Results ' The testing laboratory shall report the test results for > each TLD at the completion of each test. This report i shall not be altered or voided and'shall be maintained i as a plant record. 5 .' 1. 6 - Evaluation of Test Results The response.of the tested TLDs shall' be evaluated as soon as the testing laboratory results arrive at the plant. These evaluations shall be performed in the same manner as specified.in ANSI N13.11. Results of previous. 'y tests can be included in-the certification-letter accom- panying future test groups._ Test data shall contain no outliers that are not obviously defective TLDs for a test to pass'. 5.1.7 Corrective Action The primary purpose for conducting these tests is to ! provide assurance that the TLD system. exceeds the established performance acceptance criteria of ANSI N13.11. In the event that a test does not pass, use of the TLD reader will be suspended until the cause of failure is investigated and any necessary corrective actions have been taken. An additional set of 15 TLDs for each category should be submitted to the testing laboratory for irradiation and used to verify the reader is functioning properly. At this time the results of TLDs used for personnel monitoring that were processed since the last successful reader test should be examined to determine if there is a need to make corrections to the data. 5.2 Neutron Dosimetry Independent test laborator results for Neutrak-ER nautron dosimetry packets are on f le in the REM system offica. ] 1 i Rev. No. 3 Date 05/87 Page 5 of PDP-7
.. . \\ ~ 5.3 In-house (Semi-Monthlv) TLD Testing Program . The Shepard Model 142-10 Calibrator is used to expose TLDs to reproducible deep exposures. The depleted U-235 slab source shall be used to expose TLDs to a reproducible deep and shallow exposure. All test results are submitted to the Radiological Engineer for review and approval. A group (16) of the UD-812 TLDs are irradiated semimonthly, prior to collecting and reading TLDs from the scheduled change period. 5.3.1 Irradiate four sets of four TLDs to four different ranges such that the range of expected measurements is adequately tested. Exposures to this group of TLDs should be limited to the protection range of 0.03 rem to 10 rem. I 5.3.2 Record date and time, and length of irradiation. NOTE: At this time irradiate an additional 50 TLDs to 200 mrem for daily testing. 5.3.3 Allow approximately 24 hours for fading prior to reading the TLDs. 5.3.4 Record the precleaning sensitivity correction factor in the TLD reader maintenance log book 5.3.5 Clean the reader in accordance with the manufacturer's recommendations on preventative maintenance. Allow at least 30 minutes warm-up after cleaning before recording the sensitivity correction factor. 5.3.6 Read and evaluate TLDs using the programs TLDCPT and TLREAD according to vendor supplied instructions. 5.3.7 Using the program called "PERCAL" determine the perfor- i l mance indicators defined in ANSI N13.11 (Pi, B & S). The results must meet the criteria in ANSI N13.11. If lBl + S >0.3 notify the Dosimetry Supervisor before using the reader to determine any record exposures. If l lBI + S >0.15, review the two proceeding tests. If the i last two tests and the current test have a result of ) lBl + S >0.15, notify the Dosimetry Supervisor or the l Radiological Engineer. NOTE: Refer to vendor supplied documentation for specific program operating instructions. 5.3.8 Record the test results (B, S, lBl + S) in the TLD Reader Maintenance log book. Enter these values into the "DOSQC" data base. Monthly generate a new plot of the last year of data using the ',QCPLOT" program. ! ! Rev. No. 3 Date 05/87 Page 6 of PDP-7 . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ - _ - _ _ - . . . ' 5.3.9 Perform a RUNS test on the data using the "QCEDIT" program. 5.4 UD-807 Extremity TLD Testing A group of eight UD-807 dosimeters shall be exposed quarterly to a known radiation source. 5.4.1 Expose eight UD-807 dosimeters in the appropriate hangers on the uranium slab such that four receive exposures of 300 to 400 mrad radiation and the remaining four receive exposures of 1,500 to 1,800 mrad radiation. 5.4.2 Expose eight UD-807 dosimeters in the appropriate hangers on the 142-10 irradiator such that four receive exposures of 300 to 400 mR gamma and the remaining four receive exposures of 1,500 to 1,800 mR. 5.4.3 Allow approximately 24 hours for fading. ' 5.4.4 Read the TLDs using TLDCPT, and calculate exposure on UD-807 dosimeters using the current correction factor. 5.4.5 Use PERCAL for performance calculations. 5.4.6 Performance testing shall be conducted in accordance with ANSI N13.11. This test must meet the criteria established in ANSI N13.11 with no outliers to pass. All outliers from the test batch shall be retired from service. 5.4.7 If this test fails, discontinue reading extremity TLDs (UD-807) until the problem has been identified and corrected as verified by a successful retest. 5.4.8 The correction factor may be recalculated from these results in order to maintain the performance index close , to Zero. ) I ] 5.5 TLD Reader Calibration 5.5.1 Selection of Calibration Badges Select 50 normal reference TLDs (mean ECF for all elements 0.95 to 1.05 and all element mean sigma j = <6.0%) and 20 accident range reference TLDs (residual i dose >10 mrem). 1 5.5.2 Calibration Source The Shepard Model 142-10 Cs-137 irradiator should be used to irradiate calibration TLDs. Rev. No. 3 Date 05/87 Page 7 of PDP-7 - _ - _ .
,. u . . , . . NOTE: - The - high dose TLDs should be the same ones ' used for previous high dose calibrations. 5.5.3 TLD Irradiation Irradiate 50 calibration TLDs to a dose of approximately 400 mR .and another 20 TLDs to a dose of approximately .30R'at least 24 hours but not greater than seven days- prior to reader calibration. Record date of irradiation. 5.5.4 Reader Preparation Clean the TLD reader in accordance with section 6-3 (page 50)- of the Panasonic Operating Instruction Manual and leave it in-the BADGE SERVICE mode for at least one hour prior to performing a calibration. Insure that the -
sensitivity correction factor is equal to 1.00 1 0.05, 5.5.5 Photon and Frequency Counter Coefficients a. Load a TLD tray with 25 of the low dose and 10 of the l high dose TLDs. Read the TLDs using the programs TLDCPT and TLREAD. b. Calculate the average measured -dose (M) to the ECF corrected element 4 for each of the two groups of TLDs using the following formula: f n I E4(i) M = i=1 n . Where: ) i n = Number of TLDs used for each group. c. Calculate a Photon Counter Correction Factor (PCCF) by dividing the low dose (group 1) average measured dose (M) by the delivered dose (D) to those TLDs exposed to approximately 400 mR as follows: PCCF = M w Dose) D (Low Dose) d. Divide the current Photon Counter Conversion Coef- ficient (PCCC parameter 5A) by the PCCF and enter = the new value into the TLD reader parameter SA. e. Calculate the Frequency Counter Correction Factor (FCCF) by dividing the high dose (group 2) average measured dose (M) by the delivered dose (D) to those TLDs irradiated to approximately 30R. FCCF = M (H @ se) D (High Dose) Rev. No. 3 Date 05/87 Page 8 of PDP-7 .i _ _ . _ . . _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _
_ _ _ _ - _ _ l
l . . - i . ! l 1 f. Divide the current Frequency Counter Conversion i ' Coefficient (FCCC parameter 5B) by the FCCF and = < l enter the new value into the TLD reader parameter 5B. ! g. Verify the new values for the PCCC and the FCCC are correct by reading the remaining TLDs in each group and perform the performance calculations specified in ANSI N13.11 using ECF corrected Element 4 values for j , measured deep dose. l l h. Verify that the calibration is correct by processing l a set of TLDs in each normal monitoring category ' (categories IV, VI, VII) exposed by an independent testing laboratory and performing the ANSI perfor- mance calculations on the results using the program PERCAL. ! 5.5.6 Recording Results Record all results on the TLD Reader Calibration form (Figure 1) and attach all of the data sheets to this form. Forward the calibration form and data to the Radiological Engineer for approval before resuming use of the TLD reader. Enter the calibration date and the reason for calibration in the TLD reader maintenance log book. 5.5.7 Frequency of Calibration Since the TLD reader calibration is routinely verified through both in-house testing and annual independent laboratory testing, this calibration need be performed only when: a. Repairs are made to the reader that affect the calibration, b. The reader fails an in-house or independent labora- tory test and the REASON for the failure cannot be determined and corrected. 5.6 New Equipment Acceptance Tests 5.6.1 New Dosimeter Acceptance Visually inspect each of the new TLDs for defects and insert them into hangers. Irradiate them to approxi- mately 400mR using the Shepard Model 142-10 irradiator (approximately 100 TLDs can be irradiated at one time). NOTE: Refer to vendor supplied documentation for detailed program operating instructions. a. Using the program called TLDCPT, read the TLDs. Rev. No. 3 Date 05/87 Page 9 of PDP-7 _
_ _- - - - - - . ., .
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b. 'Using the program called TLCHCK, verify the TLDs
are numbered properly. c. Using the program called TLECF, verify that each element of each TLD has an ECF of 0.95 to 1.05. 5.6.2 New Hanger Acceptance Visually inspect the hangers for defects and install the rubber gaskets. Ensure the spring . clips are securely fastened and hinges function properly. ' 5.7 TLD Checks Prior to placing new TLDs into service, generate at least three element calibration factors for each element and use these. factors to generate a Mean Element Calibration factor for each element. At- least annually, generate a new Element Calibration factor and Mean' Element Calibration factor for the TLDs in service and the reference TLDs. 5.7.1 Irradiate the TLDs to approximately 400mR at least 24- ! hours prior to reading using the Shepard Model' 142-10 'irradiator. Include fifteen reference TLDs in each irradiation group. l 5.7.2 Read the TLDs on the 710A TLD reader using the program called "TLDCPT". 5.7.3 Using the program called "TLECF", generate element calibration. factors for each of the TLDs. This program will use the average reading on the appropriate element- of the reference TLDs to determine the delivered expo- sure. If initial ECFs are being generated for new TLDs, . store all of the ECFs except those for the reference i badges. If annual ECFs are being generated, store only I those that are- within .15 of the previous Mean ECF. . d Retest the TLDs that fail this criteria and remove all TLDs from service whose new ECFs fail the second time. NOTE: Refer to vendor supplied documentation for specific program operating instructions. 5.7.4 After at least three ECFs have been generated and stored (steps 5.7.1 thru 5.7.3), for each element generate a Mean ECF for cach element using the program called. "TLMECF". > 5.7.5 Annually or when new elements are put in service, verify that each of the extremity elements responds to within 30% of the delivered dose by irradiating them in the bandage holders to 100mR on the 142-10 irradiator. Read Rev. No. 3 Date 05/87 Page 10 of PDP '7 _ _ - _ _ _ _ _ -
l l ,, . , , l them after a 24 hour fade period and remove from service ' all of those that do not read within 70 to 130 mrem. l 5.8 TLD Processing QC ' As each batch (up to 500) of TLDs that were used to monitor personnel exposure is read run QC TLDs are also processed. 5.8.1 At the time semimonthly test TLDs are irradiated, a sufficient number of field TLDs (- 50) should also be irradiated to 200 mR for use as run QC badges during processing. . 5.8.2 Whenever the TLD reader is being used to determine record exposures run QC badges should be included. If the batch contains 150 or less TLDs 3 run QC TLDs should be added to the batch. If the batch contains greater than 150 TLDs a number of run QC badges equal to 2% of the batch size should be added (e.g. 500 TLD batch X 2% = 10 run QC TLDs). These TLDs should be randomly added to the trays of badges to be read. 5.8.3 When the TLD data is processed by the computer enter the serial number of the run QC badges as the CALIBRATION TLDs. The run calibration factors should be between 0.70 and 1.30. l 5.8.4 If the TLD reader fails, the test of 5.8. 3 above stop processing TLDs and notify the Dosimetry Supervisor. Depending on the cause of the failure the Dosimetry Supervisor may require a review and/or correction of the TLD data generated since the last successful test. 5.9 REM System Software Quality Control In order to insure that the software continues to supply accurate, timely information to plant personnel, the following steps will be followed: 5.9.1 Any changes in the software will be initiated using a Program Modification Log (Figure 2) by the Dosimetry Supervisor, Radiological Engineer or the RES Superinten- dent specifically stating the change desired and the objective of the change. 5.9.2 Modified programs will be tested on typical data and the expected extremes of data. Calculations will be veri- fled by hand or by record checks prior to placing the modified programs in service. A file called " GENERIC" contains raw TLD data that accesses each segment of the f dose algorithm for verification of TLD processing ' program modification verification. . Rev. No. 3 Date 05/87 Page 11 of PDP-7 l ! _ - - - - I
r , . .. . . ! ' 5.9.3 Final test results, raw test data, any associated ' printed reports , and the original Program Modification Log (generated by step 5.9.1) will be kept in the REM system office files, j 1 6.0 REFERENCES ) 6.1 Background References 6.1.1 ANSI N13.6 1966 (R1972), Practice for Occupational - Radiation Exposure Records Systems l 6.1.2 ANSI N13.11, Criteria for Testing Personnel Dosimetry Performance, 1983 6.1.3 National Voluntary Laboratory Accreditation Program Dosimetry LAP Handbook, U.S. Department of Commerce, 1 National Bureau of Standards, 1983 6.1.4 RES Department Procedures and Programs (as referenced in this procedure) 6.1.5 Plant Dosimetry Procedures (PDPs as referenced in this procedure) 6.2 Essential References / Controlled Documents 6.2.1 Panasonic Operating Instruction Manual l 6.2.2 Thermoluminescence Dosimetry Data Processing, Interna- tional Science Associates. 7.0 ATTACHMENTS 7.1 Figure 1, TLD Reader Calibration form 7.2 Figure 2, Program Modification Log , Rev. No. 2 Date 05/87 Page 12 of PDP-7
"* * ' PDP-7 Figure 1
TLD READER CALIBRATION , TLD irradiation date/ time: / Technician: TLD delivered dose (D) Im Dose: mR High Dose: mR TLD reader seriali: Dose rate verified with: Date/ time of cleaning Panasonic Model 710A TLD reader : / Sensitivity correction factor one hour after cleaning: n n I E4(i) I E4(i) M Im Dose = i=1 M High Dose = i=1 - = n n PCCF = M h kse FCCF = M High Dose . = D Low Dose D High Dose PCCC = (current PCCC)/(PCCF) = (SA) FCCC = (current FCCC)/(FCCF) = (5B) l Verified lBl + S Im Dose = Verified lBl+SHighDose= Battelle Test TLDs Category Deep lBl+S Shallow lBl+S II IV VI VII l Reviewed and accepted by: Date: l Rev. No. 3 Date 05/87 Page 13 of PDP-7 t- - - . - - . - - - - - - - - _ - - - - - - - - . - _ - -
,- __ __ . - _ _ _ _ _ _ - _ _ _ _ - . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ' ** * pop.7 .e Figure 2 PROGRAM EDIFICATION IE , Program name: modification new program Requested by: Date: Description of Mod or program requested: i Lines modified or inserted (use additional sheets if required): , i j . , - - I 4 List data bases affected by this program: Listing of affected program segment (s) attached y s Verification of software accuracy attached y s y * Stored to master disk y s Stored to backup master disk Stored to backup master tape y * Date completed: Initials: Reviewer s signature: l Rev. No. 2 Date 05/87 Page 14 of PDP-7 ._ _-- _ __ _ _ _ A +_ }}