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Th-232 air sample analysis

To: radsafe@romulus.ehs.uiuc.edu
Subject: Th-232 air sample analysis
From: Ed Stroud <estroud@smtpgate.dphe.state.co.us>
Date: Fri, 17 Sep 1999 13:29:07 -0700

Radsafers,
Anyone have experience performing air sample analysis for Th-232? 
We are investigating sampling methods for Th-232 which are sensitive
enough to meet the regulatory requirements for stack releases
(4E-15uCi/cc).  Is an alpha-spec system the only way to do this?   

Thanks group!

Ed Stroud,  RRPT,  Alt.RSO
ed.stroud@state.co.us
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