Re: Training Material for Noble Gas

[Mike Lantz <mlantz33@cybertrails.com>]

Dave,

Do you have our paper on noble gas retention in body fat?  Use of Xe-133
Retention in the Body to Evaluate Submersion Skin Doses; RPM Nov/Dec 1991.

Essentially, people breathe in quite a bit of noble gas and retain a very
small, but measureable fraction (0.3% at 1.5 hours).  This fraction is easily
measureable with a whole body counter and has a reasonably consistent half-life
in the body fat: ~5 to 6 hrs.  It works very well if you had a situation where
people were exposed and noble gas samples were not taken or were questionably
representative.

And you can estimate the external skin dose from the internal measurement: 100
nCi per 1 mrad at 1.5 hours.  I can send the paper if you can't find it.

Mike Lantz

David.S.Villicana@ucm.com wrote:

> Radsafers, I am looking for reference material on sampling (methods)  noble
> gas in air, or anything else associated with noble gases. If you have
> something I can borrow or something you can send me that can be used or
> point me in the direction of a resource on noble gas I would be grateful.
> This information will be used in a lesson plan on noble gases for our
> technicians.
>
> Thanks
> David Villicana
> Training
> Dresden
> ComEd
> David.S.Villicana@ucm.com
> 815-942-2920-2562
>
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