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Re: radium question

Philippe, Chris, Group, 
cc: Bob Rowland and Bob Thomas to correct any errors and clarify any
facts :-)

Bob Rowland's book is a key resource. Bob was the Director of the Center
for Human Radiobiology (CHR) at Argonne. There are no adverse effects at
less than 1000 rad (10 Gy) which would be 3000 rem at Robley Evan's RBE,
or 20,000 rem at an RBE of 20 used by persons less knowledgeable of
radium body-burden. This is based on ingestion of more than 250,000 pCi.