ML20205R176
| ML20205R176 | |
| Person / Time | |
|---|---|
| Issue date: | 04/14/1999 |
| From: | Samson Lee NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Johnson E AFFILIATION NOT ASSIGNED |
| Shared Package | |
| ML20205R074 | List: |
| References | |
| SSD, NUDOCS 9904220200 | |
| Download: ML20205R176 (3) | |
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UNITED STATES y
NUCLEAR REGULATORY COMMISSION 5
WASHINGTON, D.C. 2066f4001 DATE:
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OFFICE OF NUCLEAR MATERIAL SAFETY AND SAFEGUARDS DIVISION OF INDUSTRIAL AND MEDICAL NUCLEAR SAFETY FAX TRANSMITTAL TO LOCATION 1.
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c Please provide the following information to complete your application:
1.
Who irradiates gold seeds for you. What is the maximum activity after irradiation and most commonly used activity?
in your letter on 3/20/87 to Arnold Peart, you said there were two violations exceeding 40 mci (the maximum activity was 40 mci at that time) for seeds received from University of Missouri. Currently, the maximum activity is 80 mci. What kind of OA/QC are implemented to ensure that the over-activation will not occur again?
2.
What is the maximum number of seeds that can be handled by the lead shield container? Provide details of arrangement of these seeds inside the lead shield? The thickness of inside metal can is 0.75" which is same as before even the maximum activity was increased from 40 mci to 80 mci. Provide the maximum activity for which i
this metal can with 0.75" thickness can be effective.
3.
Provide details of manufacturing of the seed and typical examples of application of these seeds or seed.
If you have any questions, please call me at (301) 415-5787.
Thank you very much.
Seung C:\\SJL\\rsnp.df3 April 14,1999
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