ML20235S610
| ML20235S610 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 03/04/1987 |
| From: | Mulcahey E POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK |
| To: | |
| Shared Package | |
| ML20235S575 | List: |
| References | |
| PDP-6, NUDOCS 8707210716 | |
| Download: ML20235S610 (28) | |
Text
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NEW YORK POWER AUTHORITY JAMES A. FITZPATRICK NUCLEAR POWER PLANT RADIOLOGICAL AND ENVIRONMENTAL SERVICES DEPARTMENT -
PROCEDURE NO.: PDP-6 TITLE: REM SYSTEM INSTRUCTIONS PORC Review No./Date Meeting No. N/A Date d /4 /Q !
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Approved By: / /Cr ee -
Resident'Ma' nager Approved By: As /<j /
Radiological and Envir,qfimental Services Superintendent f', '
f D I d_ Du u Ob -> J 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 19 20 21 4 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 e7072 g g 00p[
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l PDP-6 REM SYSTEM INSTRUCTIONS Table of Contents Page 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 l 5.1 Data and Dosimetry Device Collection 1 l
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 Date 02/87 of PDP-6 Rev. No. 4 Page i
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.
2.0 REQUIREMENTS AND ACCEPTANCE CRITERIA None .
3.0 SPECIAL EQUIPMENT 4,
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 HPr85 and associated peripherals. s 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 itens 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.
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5.1.2 Collect the following ~ items from the Oosimetry Records
! Office 1
o- Copy of the TLD Issue Sheets that contain entries not contained in the previous copies.
l o Returned TLDs.
l o TLD record cards that may have been selected for I
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 Control 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 niaintenance (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 q by supplying the following information as requested: i o Maximum number of trades I
o Maximum number of companies o Maximum number of departments o Maximum number of personnel o Maximum number of Form-4 entries 1 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 i o Maximum number of buildings o Maximum number of elevations o Maximum number of locations !
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._________-____-______-__--_____-_____b
o Maximum number of plant functions c Maximum number of RWPs o Maximum number of ALARA Reviews o Maximum number of buildings, elevations, locations, combinations 5.3.3 Verify that the status of all terminated people is IN-ACTIVE or TERMINATED.
15.3.4 Verify that all of the active people are updated through the end of the previous year.
5,3.5 Using the TRANSFER 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 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-quested:
o Maximum number of people active during this period o Maximum number of RWPs active during this period o Maximun 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 tc be included in the working estimates o Maximum number of DRD entries NOT to be included in the working estimates o Maximum number of record internal exposure entries o Maximum number of non-record internal exposure entries 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 ac BACKGROUND dosimeters in this group.
Rev. No. 4 Date 02/87 Page 3 of PDP-6
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. j 5.4.3 Use the HP-85 program called TLDCPT or the 9000 system )
called SYISA to collect and store the raw data. These 1 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. )
i 5.4.4 Raw Data Collection
- a. 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,
- 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 i Exposure on a dosimeter to be issued, enter 10.
o When the program asks Do You Want to Make the Dosi-l 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-l viduals they were assigned to in security badge order.
l It then prints the labels to put on 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.
Rev. No. 4 Date 02/87 Page 4 of PDP-6
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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 I Assign any TLDs issued since the last time this was done, l- using the ASSIGN option. Un-assign any TLDs' returned since the last time this was done with the EDIT option.
l 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 wereLgenerated in'5.9 of this procedure since the li s t . 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 ex; ts as described in section 5.11 of this procedure. Vroceed 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 reports binder via the Dosimetry Supervisor.
5.5.8 At this time any daily reports can be generated. Refer to section 5.7 of this procedure for specific reports to be produced and instructions 6n distribution of reports. j
- 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.
- h. Using the EDIT option of RMISA, enter the date of any whole body counts (WBC) performed. If the comment !
partion of the WBC indicates the person is exiting, j change his/her system status to INACTIVE. Forward the l WBC to the Radiological Engineer.
Rev. No. 4 Date 02/87 Page 5 of PDP-6
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I 5.6 TLD Processing l
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.
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 dispose of them af ter . 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 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 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> prior to reading them.
5.7.6 It is recommended that TLDs be sorted in numerical o.-der to facilitate locating a particular badge.
5.8 Reading TLDs f 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.
Read these TLDs as part of the batch.
5.8.2 Put the required number of run QC TLDs into the batch as instructed in 5.8 of PDP-7.
i NOTE: Refer to Volume 2 of the software vendor supplied I documentation for specific program operating instructions.
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_ __________-__ A
5.8.3 Use one of the following: (1) TLDCPT for the HP-85, or (2) 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 cnd transferred by the TLD reader. When the program requests the file name, use the following 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 =
3/1 through 3/14)
D,= Alphabetical sequence of file type in specific 't' period (e.g., R8617A = first file of exposure read data for 9-1 though 9-14 in 1986 or A8610C = third file cf 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 af ter 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 4
Use the Field Dosimeter Dose Processing option of the j program called "SYISA" on the HP-9000 to generate deep and j shallow doses from the TLD raw data.
5.9.1 When the program requests the number of the CALIBRATION 1 dosimeters and prints a report on them, varify that the i run calibration factor for each element is 1.0
- 0.3 by l performing the following calculation:
run calibration factor (Element N) =
M }h*e tS NOTE: If the run calibration factor exceeds 1. 0+0. 3 for {
any element, stop TLD processing and notify the D'osimetry !
Supervisor. Do not resume processing without approval )
from the Dosimetry Supervisor.
Rev. No. 4 Date 02/87 Page 7 of PDP-f,
5.9.2 Press RETURN when the program says Enter the Number for Each CONTROL Dosimeter. No control badges are used.,
5.9.3 When g the program requests the number of the BACKGROUND i 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, j 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 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.
l 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 l history.
NRC 20.407 Report Annually within 90 days Radiological of beginning of year to Engineer cover the previous year.
y Regulatory Guide Same as NRC 20.407. Radiological 1.16 Report Engineer Rev. No. 4 Date 02/'7_ Page 8 of PDP-6 i
5.10.2 The following is a list of the reports to be generated i using the program called QUERY:
i TITLE FREQUENCY DISTRIBUTION Annual Departmental At the beginning of Radiological Personnel Exposure each year for the Engineer, RES Report i 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 Evaluctibus 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 j have been processed. {
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p TITg FREQUENCY' ' DISTRIBUTION Whol'e Body' Counts- Weekly. Same as Daily L :Due Report Exposure Report by Department Sill-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 = Effective100MPC% )
l and the exposure times from either the front of the log l sheet if available 'or the back of the RWP, calculate the
. MPC-Hours using the following ' formula ' and enter this on -
.lI l the log sheet. ,
I , (MPC-Hours = Effective MPC x Exposure Hours)
E 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.
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 Miscell'aneous Reports binder.
5.11.5 Notify the Dosimetry. Supervisor of any. individual receiv-ing more than 2 MPC-Hours in a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period or 10 MPC-Hours in a seven day period. These individuals can be identified by comparing the up-dated list to ~ previous
- lists.
5.12 Neutron Dose Entries 3.12.1 Perform neutron exposure tracking for any RWPs stamped with " NEUTRON DOSE RATE -mrem /hr" using the Neutron Tracking Form (Figure 2).
(Neutron Dose = Neutron Dose Rate (mrem /hr) x Exposure Time (hrs) 5.12.2 Using the EDIT option of RMISA, enter the neutron dose into the personnel exposure data base in the appropriate ,
period.
'Rev. No. 4 Date 02/87 Page 10 of PDP-6 L-__________ ._ -
.s 5.12.3 Place the Neutron Tracking Form in the Miscellaneous Tracking. 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.
5.12.5. Each period that neutron dose entries.have been made, run an updated' Neutron Exposure Report in accordance with sec-tion S.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 5.13.1 .Before processing extremity TLDs, insure that run QC TLDs have been processed within the preceding 24. hours. If no run QC TLDs have been processed, read three-of them into a data -fileiand process them as -~ instructed in 5. 8. 2 . of .
this procedure.
5.13.2 Sort the badges into the same order. they are listed'on the Extremity Issute 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 ho1~d--
ers, they cannot be distinguished ;from one an-other.. DO NOT GET THEM MIXED UP.
5.13.3 Place the elements into the UD807-HA1 adapter and- put them into a reader tray in the same or. der as they are listed .on the issue sheet. Be sure the elements are l loaded as specifie'd 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 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 ,
Issue sheet. l 5.13.7 Using the EDIT option of RMISA, update individual expo-sure flies in the appropriate period and wear location, j The Extremity Issue sheet should specify a wear location i of HAND or FOOT.
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5.13.8 . Calculate extremity exposures using the following criteria.
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.
o Do not make any entry for individuals whose extremity 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:
DF = DRD - TLD x 100 TLD o Greater than 100 mR difference between TLDs and DRDs.
5.14.2 Disagreement Investigation Initiation i a. Print out a TLD Versus DRD Disagreement memo for each l
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 test-ing.
- d. Using the form shown in Figure 3, send a message to l the individuals' supervisors instructing them to have
! their people return their DRD for source and drift l testing. File a copy of this in the working file.
Rev. No. 4 Date 02/87 Page 12 of PDP-6 i
l 5.14.3 Dosimetry Personnel Investigation
- b. Irradiate the TLDs to a known dose using the Shepherd Model 142-10 irradiator. Allow approximately 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> for. fading. Read theLTLDs 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).
- 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
.I
- a. Submit initiated Disagreement' Forms to the Dosimetry Supervisor for review then forward'them to the appro ,
priate department superintendent.
..b. File 's copy of these in the working file ind 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-l 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-1 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 L
t- ..Rev. No. 4 Date 02/87 Page 13_ of PDP-6
signed, dated and returned to the REM system personnel by the Radiological Engineer. Using the program call-ed QUERY, update the NGRM data base, remove the copy from the corking file and forward the original memo to the dosimetry clerk for filing. -
- b. If the explanation for 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 necessar corrective actions, attach investigation results to t e memo and return it to the REM system operator for updating and filing.
5.15 Special Exposure Evaluation A Special Exposure 2 valuation 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.
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 to 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- 1 al's supervisor or the Dosimetry Supervisor.
5.15.1 Initiation of Authorization l 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 l authorized to receive. Initiate an Authorization to i Exceed Radiation Exposure Guide using one of the following forms:
l Rev. No. 4 Date 02/87 Page 14 of PDP-6
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l o Figure 4 - if the individual is approaching the 1,000 mrem 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 mrem gestation period exposure guides.
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 estimates totaling greater than 200 mrem for the individuals who are candidates for authorization of 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 whose 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.
5.16.6 The department superintendent should review the author-ization and determine if it will be needed.
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- 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.
Rev. No. 4 Date 02/87 Page 15 of PDP-6
.o 5.16'.7 Th'e 'following approvals are required before. the Author-ization is considered valid:
a.-Greater. than 1,000 mrem but less than 2,000 mrem / quarter _ - -Department Superintendent and .RES
-Superintendent.
- b. Greater than: 2,000 mrem / quarter or ' 4,000 mrem /yr . but less than 5,000 mrem /yr - same.as 5.16. 7(a) plus. the-Superintendent of Power.-
- c. Greater. than 5,000 mrem / year or . 500 mrem / gestation period e same as.5.16.7(b) plus the Resident Manager.
NOTE: The Dosimetry Supervisor will establish-the new exposure authorization at the maximum-allowable i 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. ..
5.16.8 After all of.the required ' approvals have been obtained, The Authorization will be returned to the REM system per-sonnel.1 .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 Dosimetry Investigation-Based'upon'the. listings of-Special Exposure Evaluations and 4 TLD Versus DRD Disagreements produced as . described in sec- H 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: j.
o An individual loses more than one TLD in a month. ;
1 o An individual loses more than two TLDs in a quarter.
o More than one TLD Versus DRD Disagreement is generated .i in a month for an individual. i l
o More than two TLD Versus DRD Disagreements are gen-erated in a quarter for an individual. i o An individual exceeds an exposure authorization by more than 10 percent.
5.17.2 An interview will be conducted with the employee, depart-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 {
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5.17.3 - Verification ' of the ' evaluationfresults will be made.by one of the following methods:
L a. If loss'of TLDs caused the investigation, at-least two 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.
5.1~7. 4 If ' exceeding an exposure authorization caused the ini-tiation, the individual' will -not be issued another TLD L until the appropriate authorization as described in sec-tion 5.16 has been completed.
L -5.17.5' If.these. verifications fail to show the problem has been '
resolved 'or if Lany evidence of willful or premeditated alteration of personnel dosimetry equipment or records .
exist, documented counseling by upper ' . level management u '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 .l l
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 -
mrem / Quarter or 4,000 mrem / Year 7.5 Figure 5, Authorization to Exceed Exposure Guide in Excess ,
of 2,000 mrem / Quarter, 5,000 mren/ Year or 500 mrem for a Gestation Period 7.6 Figure 6, Dosimetry Investigation Rev. No. 4 Date 02/8J,_ Page 18 of PDP-6
Jimss A. Fit:P trick Nucl:tr Pow 4r Pirnt
. Po Ba 4 i Figure 1 Lyt.omm. New York 13093 TLD VERSUS DRD DISAGREEMENT 315 342 38n Memorandum
- 5 NewYorkPower 4v 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 = ~ *
mR Delivered
=
(allowable = ! 0.5)
DRD #: was tested on: and indicated a performance mR Measured - mR Delivered f ,
mR Delivered
=
(allowable = ! 0.1)
DRD drift check indicated % of full scale in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.(allowable = 2.0%)
Dosimetry Personnel Comments:
Signed: Date:
Rev. No. 4 Date 02/87 Page 19 of PDP-6 l
l l
l . Figure 1
)
Appropriate Department Supervisor Comments / Method of Resolving Discrepancies:
I l-l~
1 Worker Signature: Date:
1' 1
Dept. Supv. Signature Date:
1 i Radiological Engineer Review Further investigation [] is [] is not required.
Comments:
l I
Signed: Date: i l
)
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Rev. No. 4 Date 02/87 Page 20 of PDP-6
Figure 2 NEUTRON TRACKING FORM Neutron l Neutron Exposure Badge Dose Rate Time Neutron Update Required Name Badge # RWP # (mrem /hr) (hrs) Dose Date Yes No l
l Rev. No. 3 Date 06/86 Page 21 of PDP-6 I
- ~~ ~ ~ ~ ._ . _ _ - - - -
\.... .
Jtm*s A. Fit:P: trick - ,
Nucisar Powtr Plant Figure 3 s
- Po % 41 DRD EXCHANGE tycur g New York 13093 ,
I. 315 342 3MS .
L Memorandum l
$ #> NewYorkPower i tv Authority DATE:
MEMORANDUM TO: .(Dept. Supt.)
FROM: DOSIMETRY SUPERVISOR SUBJECTI DRD EXCHANGE Please have the folloNing personnel in your employment report to the DRD issue area to exchange. their direct reading dos 1 meter before making 'their
~
next' entry into the restricted area:
I, i
J i
1 1
DOSIMETRY SUPERVISOR Rev. No. 4 Date 02/87 Page 22 of PDP-6
Figure 4 1
Authorization to Exceed Exposure Guide t
in Excess of - 1,000 meem/ Quarter ci- 4,000 mrem / Year A. . Name TLD # .is submitted
.y 7 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 exposure 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
-mrem during the previously defined period.-
up to .
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 Imaediate Supervisor Work area or job q to be performed .
Individual notified authorization is being processed signature D. APPROVALS:
Dept. Superintendent Date RES Superintendent Date l
EXPOSURE IN EXCESS OF ANNUAL GUIDE:
Superintendent of Power Date Rev. No. 4 Date 02/87 Page 23 of PDP-6
i 1
l
. Figure 5 Authorization to Exceed Exposure Guide in Excess of 2,000 mrem / Quarter, 5,000 mrem / Year or 500 mrem for a Gestation Period j 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 Dete B. TO BE COMPLETED BY DOSIMETRY SUPERVISOR OR DESIGNEE:
This authorization permits the individual named above to receive a total of up to , mee2 during the previcusly defined period.
Form NRC-4 complete?
Unused part of permissitcle 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 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 Authorization to Exceed Exposure Guide in Excess of 2,000 mrem / Quarter, 5,000 mrem / Year or 500 mrem for a Gestation Period C. TO BE COMPLETED BY INDIVIDUAL'S DEPARTMENT (continued):
Other available qualified individuals Current Quarter Current Year Name (mrem) (mrem)
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 Gestation period only - attach physician's statement.
Rev. No. 3 Date 06/86 Page 25 of PDP-6
r e <
l l , Figure 6 DOSIMETRY INVESTIGATION Initiating date Individual's name Company TLD # Security bad'ge # SSN INITIATING CIRCUMSTANCES:
INTERVIEW CONDUCTED: Date Comments Attendees Individual Signature Date
~
Dept. Supv. Signature Date RES Supv. Signature __Date VERIFICATIONS PERFORMED:
(1st) Date By Results (2nd) Date By Results RADIOLOGICAL ENGINEER REVIEW:
Further evaluation required: [] 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
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