ML20133Q188

Informs That No Basis Was Found on Which Value of 0.3 for Keff Has Been Determined & Requests Mallinckrodt to Furnish Calculations or Observations Used in Computing Keff Together W/Appropriate References

ML20133Q188
Person / Time
Site:	07000036
Issue date:	12/16/1958
From:	Beck C US ATOMIC ENERGY COMMISSION (AEC)
To:	Johnson L US ATOMIC ENERGY COMMISSION (AEC)
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References
FOIA-96-343 NUDOCS 9701280006
Download: ML20133Q188 (1)

Text

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Of] ice Memorandum unirto srirns oavsanusar To

Lyall E. Johnson, Chief D ATE:

Licensing Branch Project $F0 5" ~ I gg[ U Docket 70-36 nou : Clifford K.. Beck, Chief 4IS Hazards Evaluation Branch subject: MALLINCKRODT CHEMICAL WORKS We have reviewed the October 31, 1958, request of Mallinckrodt 1

Chemical Works, and the additional information submitted on November 14, for AEC approval of two shipping containers.

The two containers were (1) a 5 gallon drum braced in a 55 gallon

" shorty" drum and (2) a 15 gallon drum in a special 88 gallon outer container. Mallinckrodt proposes to ship quantities of enriched uranium oxide in their containers which, if shipped singly, would be acceptable from the standpoint of criticality. However, the applicant proposes to ship these containers close together and stacked three high. In answer to our request (phone call Beck to Leaders) Mallinckrodt in their letter of November 14, 1958, furnished computations in justification of their proposal. These calculations, appropriately based on solid angle calculations, assumed a k,gg of in the quantities and enrichments specified.

j 0.3 for UO2 We find no basis en which the value of 0.3 for k,ff has been determined, and ask that you request Mallinckrodt to furnish calculations or observ-ations used in computing k gg, together with appropriate references.

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