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Fw: Leak test of Kr-85 radioactive source
----- Original Message -----
From: "Michael Kay" <makay43@attbi.com>
To: "Fazal-ur-Rehman" <fazalr@kfupm.edu.sa>
Sent: Tuesday, August 20, 2002 8:14 AM
Subject: Re: Leak test of Kr-85 radioactive source
> The NRC regulations exempt Kr-85 sources from leak tests. The ways to tell
> if the source is leaking involve a continuous air monitor for the area
BELOW
> (Kr is heavier than air), or the notice of a change in the measured value
> requiring a larger than normal calibration correction (greater than
required
> by decay).
>
> Michael A. Kay, ScD, CHMM
> Consultant to a firm using Web Thickness Gauges
> Containing Kr-85
>
> makay@alum.mit.edu
> ----- Original Message -----
> From: "Fazal-ur-Rehman" <fazalr@kfupm.edu.sa>
> To: <radsafe-digest@list.vanderbilt.edu>
> Cc: <rnassar@kfupm.edu.sa>
> Sent: Tuesday, August 20, 2002 2:45 AM
> Subject: Leak test of Kr-85 radioactive source
>
>
> > Dear Radsafers
> >
> > Could anyone tell us how to do leak test of a radioactive Kr-85 source.
> This
> > source is a beta emitter used as a thickness guage. In my openion,
Kripton
> > is an inert gas and it will not stick on the surfaces and will be taken
> away
> > by the air, therefore, we can not take smear or wipe samples to see
> whether
> > the source is leaking or not. We would appreciate it if somebody could
> > suggest the proper way to find the leakage of this source.
> >
> > Thank you in advance.
> >
> > Fazal-ur-Rehman
> > P.O. Box # 1292
> > Department of Physics
> > King Fahd University of Petroleum & Minerals
> > Dhahran 31261
> > Saudi Arabia
> >
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>
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