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Information on U and Th in Tin Slag

Radsafers;



I'm looking for information on the relative concentrations of Th-232 and

U-238 in Tin Slag and Columbite-Tantilum ores. An internet search has come

up blank. There have been several CERCLA actions on C-T ore processing

facilities that might yeild some information (one might be the Elkem Metals

Co. in Marietta, OH). Has anyone got access to the data from one of these

sites?



Any information or reference sources would be appreciated.



Thanks in advance,



-Harry



-----------------------------------------------------------

Harry Anagnostopoulos, CHP

Senior Health Physicist

SAIC

500 NW Plaza, Suite 1000

St. Ann, MO  63074

(314) 770-3059 Phone

(314) 770-3067 Fax



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