[ RadSafe ] 10CFR20 question

Scott Davidson bsdnuke at gmail.com
Thu Jan 22 09:30:23 CST 2015

If the license does not require shallow dose monitoring (in the application and reflected in the tie down clause) of the license the licensee is required to be able to demonstrate compliance with that limit but there is no monitoring required threshold for (adult) shallow dose similar to the specific requirement for individuals likely to exceed 10% of the adult whole body dose limit. Various regulatory guides will say what is acceptable to the staff when they review your program and if you buy into/commit to the RG then that is a license condition and enforceable under 30.34, I believe. 

Sent from my iPhone

> On Jan 21, 2015, at 5:09 PM, Gretchen Mitschelen <gmitsch at umich.edu> wrote:
> Hi-I am a student at U of M and am taking a lab that requires I familiarize
> myself with 10CFR20 (among other things!)
> My question is this:
> Under what circumstances, if any, is the use of extremity monitoring
> required under NRC regulations?
> I found in 10CFR20.1502 (a) the circumstances that require and individual
> to monitor for external dose, but can't seem to find anything that deals
> solely with extremity monitoring.
> Any help is appreciated!
> Thanks-
> -- 
> Gretchen Mitschelen
> University of Michigan class of 2015
> Nuclear Engineering and Radiological Sciences
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