RE: Ion chamber versus GM

["Dunn, Wes" <WDunn@intiso.com>]

Any regulatory agency that would claim that an ion chamber is not
acceptable for checking HDR sources is on very shakey grounds UNLESS (1)
the licensee committed to using a GM.  Of course, as mentioned earlier,
a scintillation probe is wonderful for finding lost sources.  However,
they tend to be delicate.

Wes

P.S.  Yes, "I have returned"

Wesley M. Dunn, CHP, Director, Environmental Health & Safety
International Isotopes, Inc.
3100 Jim Christal Road
Denton, Texas  76207
Wdunn@intiso.com <mailto:Wdunn@intiso.com> 
940-484-9492; 940-484-0877 (fax)