[ RadSafe ] Pepto-Bismol

[Otto Raabe]

At 06:04 AM 12/13/2006, Flanigan, Floyd wrote:
>When Litvinenko came to leave the Soviet Union, radiological monitoring
>was not exactly prolific in airports and ports of entry/egress. So let's
>say he had some items in his possession which were pretty severely
>contaminated with U-238. Being ex-KGB, this is not such a stretch.
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"contaminated with U-238"?????  The specific activity of U-238 is too tiny 
for this statement to be meaningful!

"Po-210 in-growth"??????? It would take many thousands of years for 
significant in-growth of Po-210 in a sample of U-238, and the activity 
level would be no higher than that of the puny activity of U-238.

Otto


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Prof. Otto G. Raabe, Ph.D., CHP
Center for Health & the Environment
University of California
One Shields Avenue
Davis, CA 95616
E-Mail: ograabe at ucdavis.edu
Phone: (530) 752-7754   FAX: (530) 758-6140
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