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Re: radioactive rocks



Joel,



My limited experience indicates that europium (152 & 154) is the

biggest surprise.



Stephen Frantz

sfrantz@yahoo.com



> I am D&Ding activated concrete sheild walls. Part of the floor

is above the 

> DCGL and will have to come out.  Under the floor is a gravel

subfloor.  I 

> haven't been able to sample the gravel yet (floor is still in

place).  Has 

> anyone run into this situation?  What nuclides show up in the

gravel?  

> Co-60?

> 

> Joel I. Cehn, CHP

> cehn@aol.com



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