[ RadSafe ] Feild instruments for low activity gamma in soil

Owen, Austin Andrew owenaa at oro.doe.gov
Tue Jul 8 12:55:56 CDT 2014

Does anyone know of a field instrument capable of detection of 7 pCi/gm gamma in soils for Thorium remediation.  To be used in Northern Illinois with a higher than average Rn background?  
If so, has DOE or EPA approved use of instrument to meet free release criteria and/or screening for lab analysis. 
I would also be interested in any previous technical papers used to justify use of instrument or combination of scanner and scalar. 

Andy Owen
Health Physicist
Engineering and ISC Services Division
(865) 576-0852

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