ML20245A681
| ML20245A681 | |
| Person / Time | |
|---|---|
| Issue date: | 07/03/1984 |
| From: | Cunningham R NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | AFFILIATION NOT ASSIGNED |
| Shared Package | |
| ML20245A615 | List:
|
| References | |
| FOIA-89-205 NUDOCS 8906220117 | |
| Download: ML20245A681 (2) | |
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1 APPENDIX.8 - J.L. Shepherd Irradfators !
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- * ' C % UNITED STATES l
- h NUCLEAR' REGULATORY COMMISSION WA$HINGTON. D.C. 20535 ,gg ;
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- URGENT NOTICE ,
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, -TO ALL LICENSEES WHO POSSESS'J. L. SHEPHERD IRRADIATORS l
An NRC licensee recently identified a malfunction in the lock mechanism ,
of. its J. L. Shepherd self-shielded irradiator which could have rest.ited in 1 a radiation overexposure. Although no. overexposure appears to have occurred,
' the potential hanrd warrants imediate preventive action.. Therefore we have. prepared the enclosed Order which requires'the use of radiation survey equipment when the irradiators are being used.
If you possess a J. L. Shepherd Mark'I or Model 81-22 self-shielded irradiator,.
do not use it unless you provide appropriate radiation. monitoring as specified l in the Order. If you do not currently possess the appropriate equipment, you l must obtain it before you resume use of your-irradiator. Also, you should-report any problems to your nearest NRC regional office immediately. Do_ not attempt to repair an irradiator, or allow anyone else to attempt repairs,. l unless specific authori::ation for repair of the irradiator which you possess is provided in'an NRC license.
l We suggest that you review who has access to your irradiator, and establish..
strict controls to assure that' no untrained personnel have access. Trained persons who continue to use the. irradiator should conduct careful radiation
,- surveys as specified in the Order. Irradiator doors should be opened slowly, L to minimize any accidental e'xposure and to avoid " blanking out" of instruments l due to high exposure rates. Any unusual meter reading should be taken' as-evidence of a problem.
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! We are including in this mailing certain licansees about which we are l
uncertain whether they possess J. L. Shepherd irradiators. If you do not possess a J. L. Shepherd irradiator, please disregard this notice.
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8906220117 890614 PDR FDIA PDR 10.9-21 FELTON89-205
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I - APPENDIX B - Continued LJ.:L. Shepherd Irradiator Licensees Because this Order is effective immediately, it is important that you - '
notify _ your radiation safety personnel imediately, and retain this Order \.
with your license records. ' /' ~ t Questions and comments may .be your nearest NRC regional office. Ogdirected 'to$f,c fi
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S ncerely, 3 ., ;y, g, :, ._
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Richard E. Cunningham,:D.irectorf " ' "E Division of Fuel Cycle /and .:-
Material Safety M%.g,4: '
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Enclosure:
Order Modifying License l ] $m. .. [-.
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