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Assessment of two-filter technique for correlating actinium-227 concentrations in soils [electronic resource].

Published
Oak Ridge, Tenn. : Oak Ridge National Laboratory, 1980.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 45 : digital, PDF file
Additional Creators
Oak Ridge National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Concentrations of actinium-227 in soil samples from waste-disposal sites for uranium procession plants were successfully correlated with radon-219 measurements obtained by the two-filter technique, thus avoiding time-consuming and difficult radiochemical analyses. A flow-through sampling device and procedure were developed which determined actinium levels with a precision of 2 pCi/g +- 50%. Theoretical relations for the production of radon from actinium, the decay of radon, and the decay and diffusion of radon daughters in the two-filter apparatus were formulated. Measurements indicated that the emanation fraction for radon-219 was about 15%. Sampling filters collected radon daughters with a 93% efficiency while radon could be scrubbed from air samples by use of an activated-charcoal canister.
Report Numbers
E 1.99:ornl/mit-299
ornl/mit-299
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
02/01/1980.
"ornl/mit-299"
Patch, K.D.; Reynolds, B.A.; Fraizer, W.K.
Funding Information
W-7405-ENG-26
View MARC record | catkey: 14151741