[ RadSafe ] Low temps and CF-252 sources

Brian Rees brees at lanl.gov
Fri Feb 15 16:34:09 CST 2008

We have a researcher that in interested in taking a Cf-252 source to 77k 
(-196C) - Liquid N2 as part of an experiment.  I assume the encapsulation 
is not tested to that low a temp, and I would have concerns about brittle 
fracture and/or thermal expansion/contraction induced cracking of the 
encapsulation - not something I would want to deal with!   Other than 
speculation (which we are also quite capable of) does anyone have any 
information or experience in this realm?

Thanks in advance,
Brian Rees

More information about the RadSafe mailing list