JAFP-87-0510, Submits Addl Info on Insp Followup Items Re Extremity Dosimeter Calibr,Qc & Calibr & Dosimetry Procedures,Per Insp Rept 50-333/86-06.Specific Test Data Showing Extremity Dosimeter Response to Cs-137 Photons Encl

Submits Addl Info on Insp Followup Items Re Extremity Dosimeter Calibr,Qc & Calibr & Dosimetry Procedures,Per Insp Rept 50-333/86-06.Specific Test Data Showing Extremity Dosimeter Response to Cs-137 Photons Encl

ML20235S574
Person / Time
Site:	FitzPatrick
Issue date:	06/26/1987
From:	Radford Converse POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	Shanbaky M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20235S575	List: JAFP-87-0510, Submits Addl Info on Insp Followup Items Re Extremity Dosimeter Calibr,Qc & Calibr & Dosimetry Procedures,Per Insp Rept 50-333/86-06.Specific Test Data Showing Extremity Dosimeter Response to Cs-137 Photons Encl ML20235S600 ML20235S610 ML20235S614
References
JAFP-87-0510, JAFP-87-510, NUDOCS 8707210702
Download: ML20235S574 (6)

Text

- _ _ _ - _ _ _ .

-r ..k J: mss A. Fit: Patrick Nuclut Power Pl nt P.O. Bom 41 Lycoming, New York 13093 315 342.3840 Radford J. Converse

1. > NewYorkPower

& Authority June 26, 1987 JAFP-87-0510 i

U.S. Nuclear Regulatory Commission Region I 631 Park Avenue 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 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 1.58 was derived for high energy photons response of the extremity dosimeter. It was this correction factor that was considered anomalous in the 86-06 Inspection. During subsequent testing and development of the new UD-812 dosimeter system, TLD reader l parameters were adj usted 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 870721070287gI33 3 PDR. ADOCK 0 PDR Q O\ j i

TO: U.S.W.R.C. June 26, 1987--

l- FROM: RADFORD J. CONVERSE . JAFP 0510

SUBJECT:

INSPECTION REPORT 50-333/86-06 Page data showing the extremity dosimeter response to Cs-137 photons is attached, f.

lD . 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) l As' requested copies of procedures PDP-1, " Dosimetry Records Procedure", PDP-3 " Direct Reading Dosimeter Calibration" and PDP-6, " REM System Instructions" are attached.

L- Should you require further information, please contact. Mr.

George J. rgo of my staff at 315-349-6706.

i wW FORD , CONVERSE RJC:GJV:emd Attachments Distribution E. Mulcahey NRC Resident Inspector NRCI 86-06 File Document Control Center i

._. _ _________________-____-__--__w

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