ML20148G532

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Safety Evaluation Supporting Amend 5 to License SNM-362
ML20148G532
Person / Time
Site: 07000398
Issue date: 05/23/1997
From:
NRC
To:
Shared Package
ML20148G521 List:
References
NUDOCS 9706060003
Download: ML20148G532 (1)


Text

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.p- 4 UNITED STATES I g j

,C NUCLEAR REGULATORY COMMISSION o WASHINGTON, D.C. 20565 0001

. . . . . ,o DOCKET: 70-398 LICENSEE:.U.S. Department of Commerce l

National Institute of Standards and Technology (NIST)

SUBJECT:

SAFETY EVALUATION REPORT: APPLICATION DATED MAY 1, 1997, AND SUPPLEMENT DATED MAY 7, 1997, POSSESSION LIMIT CHANGE BACKGROUND L By application dated May 1, 1997, and supplement dated May 7, 1997, NIST .

requested a license amendment to increase the possession limit for  !

Strontium-90 (Sr-90) as sealed sources from 3 curies to 5 curies.  ;

, DISCUSSION ,

NIST performs calibration services for byproduct material licensees at its 1 Gaithersburg location. As a result of increasing demand for SR-90 devices l used in restenosis therapy, the number of such devices present at NIST for l

calibration at any given time could increase, possibly exceeding the current 3 curies possession limit for Sr-90. Accordingly, the licensee requested an increase in that limit.

i r The requested materials are sealed sources and will be used in accordance with ,

an approved written procedure. The staff reviewed the licensee's request and determined an increase of 2 curies of Sr-90 at the NIST facility would not  :

result in significant radiological impact. The licensee's currently approved I organization and radiological safety procedures are adequate to protect the l health and safety of the personnel. '

4 CATEGORICAL EXCLUSION Based on the information submitted by NIST, the staff has' determined that the

. criteria in 10 CFR 51.22(c)(14)(viii) for a categorical exclusion has been  ;

met. Therefore, neither an environmental assessment nor an environmental impact statement is necessary for this proposed action.

CONCLUSION Based on the above discussion, the staff concludes that the amendment can be issued authorizing the increase of the possession limit of Sr-90 in sealed source form without undue risk:to the workers, public, or the environment.

l' Therefore, approval of the application is recommended. The Region I staff has

l. no objection to this licensing action.

Principal Contributors Sean Soong.

Susan Chotoo I 9706060003 970523

! PDR ADOCK 07000398 C PDR l

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