[ RadSafe ] Question on Subtracting TLD Background

[Luke McCormick]

I would suggest leaving things the way they are, at least until you know you have a fairly uniform background level. One of my locations has background varying from 7 µR/hr to over 100 µR/hr in a few hundred yards.

Luke McCormick


 
> Date: Thu, 28 May 2009 08:31:03 -0600
> From: Kevin.Konzen at icp.doe.gov
> To: radsafe at radlab.nl
> Subject: [ RadSafe ] Question on Subtracting TLD Background
> 
> Hello,
> 
> 
> 
> I have a question regarding the practice of subtracting beta-gamma
> background dose from TLDs in general. Our facility has multiple storage
> board locations where TLDs are kept when not being worn. When the TLDs
> are gathered at a prescribed interval (e.g., monthly or quarterly) for
> processing, the background TLDs located on each storage board, are also
> processed and used for the TLD background which is subtracted from the
> individual TLDs. We are investigating the feasibility of using a
> centralized TLD background location in order to reduce the labor and
> costs associated with using multiple background locations. I haven't
> been able to find any clear guidance prescribing the specifics of
> measuring the background, other than to subtract it from the TLDs during
> processing. As part of this analysis, I would like to include other
> facility practices. If you have any information on current specific
> guidance or practices, please respond to me directly at
> Kevin.Konzen at icp.doe.gov. 
> 
> 
> 
> Thank You,
> 
> Kevin Konzen, CHP
> 
> ICP Technical Advisor 
> 
> Kevin.Konzen at icp.doe.gov
> 
> (208) 745-7108
> 
> 
> 
> 
> 
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