Re: MDA of radionuclides in soil

[clement@vaxxine.com (Clement)]

>Does anybody know of a reference which has values of realistically
>achievable Minimum Detectable Activities for various radionuclides (as many
>as relevant) in soil?
>
>Thanks,
>
>Kim Kearfott.

I came across a paper recently that addressed exactly this topic -

"An Industry Survey of Current Lower Limits of Detection for Various
Radiounuclides"  Health Physics 69(1):121-129; 1995

It dealt specifically with analysis in soil, and included dozens of
radiounuclides and several analysis techniques.

A general result is given in the abstract.  It states  "The minimum
detectable level for most isotopes using standard procedures was on the
order of 0.0037 to 0.037 Bq/g (0.1 to 1.0 pCi/g)."

Hope this helps.

Chris Clement
Low-Level Radioactive Waste Management Office
Atomic Energy of Canada Limited
clementc@crl.aecl.ca
clement@vaxxine.com