ML20149L314
| ML20149L314 | |
| Person / Time | |
|---|---|
| Issue date: | 02/16/1996 |
| From: | Steven Baggett, John Lubinski NRC |
| To: | |
| Shared Package | |
| ML20100G793 | List: |
| References | |
| SSD, NUDOCS 9602260178 | |
| Download: ML20149L314 (4) | |
Text
REGISTRY 0F RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE l
NO.: NR-420-S-839-S DATE: February 16, 1996 PAGE 1 OF 4 SEALED-SOURCE-TYPE: Beta Gauge Source l
MODEL: S-6 l
MANUFACTURER / DISTRIBUTOR: LFE Industrial Systems Corporation 55 Green Street Clinton, MA -01510 t
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l ISOTOPE: MAXIMUM ACTIVITY: )
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Krypton-85 750 millicuries;(27.8 GBq) )
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LEAK TEST FREOUENCY: Not Required i
PRINCIPAL USE: (E) Beta Gauge t
W CUSTOM SOURCE: YES X NO
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9602260178 960216 PDR RC SSD PDR
REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO.: NR-420-S-839-S DATE: February 16, 1996 PAGE 2 OF 4 SEALED SOURCE TYPE: Beta Gauge Source DESCRIPTION:
The Model S-6 sealed source consists of a monel metal capsule 2" (5.08 cm) in diameter by 9/16" (1.43 cm) high having a thin window. Krypton is introduced through a 0.059" (1.5 mm) diameter copper tube by standard filling techniques. Each capsule is supported by means of holes at 120* on the capsule flange.
l LABELING:
The source is not labeled directly since it is an integral )
component of the device.
CONDITIONS OF NORMAL USE: !
The sealed source was designed for use in beta thickness gauges to measure thickness of materials in industrial environments. ;
Expected operating conditions for the gauges are: 1
- Temperature - up to 300'F (149'C)
- Humidity - up to 100%
- Vibration - industrial conditions at. slight to. moderate vibration PROTOTYPE TESTING:
i l LFE was unable to provide information on testing of prototype l sources. However, LFE has indicated the Model S-6 sealed source l was first distributed in the early 1960's and LFE has received no l reports of leakage of the source. i i
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EXTERNAL RADIATION LEVELS:
LFE was unable to provide information concerning radiation levels around the source. However, LFE has indicated that the sources were designed for use in LFE beta gauges and the gauges were typically designed to not exceed 5 mR/hr (50 pSv/hr) at 12" (30.5 cm).
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1 REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE l
l NO.: NR-420-S-839-S DATE: February 16, 1996 PAGE 3 OF 4 SEALED SOURCE TYPE: Beta Gauge Source l OUALITY ASSURANCE AND CONTROL: j The LFE Industrial Systems Corporation maintains a quality ;
assurance and control program which has been deemed acceptable i for licensing purposes by NRC. A copy of the program is on file with the NRC, Rockville, MD.
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LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE:
- The sealed source has been distributed to specific licensees of NRC or Agreement States. I I
- Handling, storage, use, transfer, and disposal: To be determined by the licensing authority.
- This registration sheet and the information contained within l the references shall not be changed without the written l consent of the NRC. ;
l SAFETY ANALYSIS
SUMMARY
1 In 1969, LFE sold its source distribution business to International Chemical and Nuclear Corporation. Therefore, LFE has not distributed the Model S-6 since 1969. Prior to 1969, LFE distributed 92 sources. l
REFERENCES:
The following supporting documents for the Model S-6 sealed J source are hereby incorporated by reference and are made a part of this registry document.
- LFE Industrial Systems Corporation's letters dated August 6, 1991, September 16, 1991, and September 28, 1995, with enclosures thereto.
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REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES l SAFETY EVALUATION OF SEALED SOURCE !
I NO.: NR-420-S-839-S DATE: February 16, 1996 PAGE 4 OF 4 l SEALED SOURCE TYPE: Beta Gauge Source ISSUING AGENCY-1 U.S. Nuclear Regulatory Commission !
Date: February 16, 1996 Reviewer: /
ohn W. Lubinski i r l Date: February 16, 1996 Concurrence: h) M Steven 'L. Baggett I l
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