RE: News on BNL Deer -Factors at play?

["Scott, Bob A" <bscott@rwmc.org>]

	I get a few different numbers.  If the limit for humans is 9 pCi,

and it takes 64 lbs. of muscle to be eaten for a person to injest 9 pCi, and

there are 29091 g in 64 lbs, then dividing 9 by 29091 gives 0.0003094

pCi/gm.  But this fawn contained 21 pCi (total?) which would make it a total

of 64 X 21 / 9, or 149.33 lbs. (of muscle on this fawn), not counting

internal organs and bone and skin.  That's a pretty big fawn, no?  So I have

to agree with others that something is missing in the news item.

Furthermore, assuming the muscle was chopped up into a Marinelli beaker,

counted on a GeLi, with only the counts in the Cs-137 peak, how long a count

time would be required to obtain a reading of 3.1E-4 pCi/g?  I didn't have

the time to do those calcs.



Bob Scott, RPO

Roger Williams Medical Center

Providence, RI  

bscott@rwmc.org

 



-----Original Message-----

From: Marthaller, Chris [mailto:Chris.Marthaller@wipp.ws]



If the limit for humans is 9 pCi and it takes 64 pounds to cause potential

"damage" to humans and assuming that this is the pCi content used for

"damage".  I see that there are about 29,090.91 grams in 64 pounds.  Then

the 21 pCi talked about needs to be the correct unit and the pCi/gm would be

7.22E-4 pCi/gm.   If I used my fingers and toes correctly. 

 

Chris A. Marthaller, RRPT 

Sr. Training Coordinator, WIPP 



"After several radiation tests on the deer, lab scientists found it

contained

21 picocuries of radioactive material." 



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