Re: Pu239/240 ratio

["Otto G. Raabe" <ograabe@ucdavis.edu>]

August 21, 2000
Davis, CA

Northern hemisphere fallout from atmospheric nuclear weapons tests has a
Pu-240/Pu-239 atom ratio about 0.177

while weapons grade plutonium itself has a ratio of only 0.064 (Krey, 1976).

Otto

	*****************************************************
	Prof. Otto G. Raabe, Ph.D., CHP
	Institute of Toxicology & Environmental Health (ITEH)
	(Street Address: Bldg. 3792, Old Davis Road)
	University of California, Davis, CA 95616
	E-Mail: ograabe@ucdavis.edu
	Phone:(530) 752-7754, FAX:(530) 758-6140
	*****************************************************
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