Document Details

Extension of Alpha Contamination Control at K-25 To Include Plutonium
Subject Terms:
concentration, alpha; contamination, hazards; health physics, alpha-emitter; plutonium, K-25, uranium
Document Location:
DOE INFORMATION CENTER 1 Way, Oak Ridge, TN 37831; Eva Butler; Phone: 865-241-4780; Toll-Free: 800-382-6938, Option 6; FAX: 865-574-3521; Email:
Document Categories:
Health, Safety and Environment\Worker Health and Safety; Specific Material\Plutonium
Document Type:
Publication Date:
1952 Dec 31
Declassification Date:
1996 Apr 19
Declassification Status:
Document Pages:
Accession Number:
Document Number(s):
KS-286, 12047
Originating Research Org.:
Oak Ridge Gaseous Diffusion Plant
OpenNet Entry Date:
1998 Sep 01
This document concerns the extension of alpha contamination control at K-25 to include plutonium. Discussed were considerations for the method of contamination control, the plant acceptable limits, location of potential plutonium hazards, and suggested guides for working with plutonium. Since plutonium has a specific activity approximately 100,000 times that of uranium, a very much smaller mass of plutonium is required to produce a given surface or air contamination level than is necessary with uranium. The relative plutonium-to-uranium ratio may increase to a concentration greater than the feed concentration of 10 ppb. in some plant locations as a result of processing. Equipment in which accumulations of material with a plutonium-uranium ratio greater than 1 ppm. will need to receive special attention. The same precautions specified for uranium will also be effective for plutonium with the exception that no consideration need be given to penetrating radiation as is necessary for protection against the uranium daughters. A figure and appendixes are included.

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