[ RadSafe ] Low background Shielding Material

[Vernig, Peter G.]

Group,

I have heard many times that "Pre World War II battleship steel" is used
for extremely low background shielding.  I had always wondered about
that as it seemed that an infinitesimal amount of fallout would find its
way into steel.  But then I heard another explanation that made more
sense something to do with the fabrication process that apparently
changed post WWII and involved a small amount of Co-60 I think.

Does anybody out there know what the explanation is?

Any opinions in this e-mail are solely those of the author, and are not
represented as those of the VA Eastern Colorado HCS, the Dept. of
Veterans Affairs, or the US Government.

Peter G. Vernig, Radiation Safety Officer, MS-115, VA Eastern Colorado
Health Care System, 1055 Clermont St. Denver, CO 80220,
peter.vernig at va.gov, Phone= 303.399.8020 x2447; Fax = 303.393.5026,
alternate fax, 303.393.5248

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