Re: Tritium Contamination Detectors

[Warren_Church@uml.edu (Warren Church)]

As mentioned by others this is a windowless detector which can be usefull
in detecting significant levels of H-3 surface contamination.  It should
not however be used to measure contamination amounts in dpm/100 cm2.  The
only way to do this is to take physical samples and have a laboratory
analyze them for Tritium. Some of the problems we found with the winowless
detector were change in sensitivity with: 1. Orientation(verticle vs
horizontal). 2. Humidity 3. Roughness of surface. (We found it totally
unusable on a scabbled surface.
Warren Church, University of Massachusetts Lowell
warren_church@uml.edu
----------
> From: Doerr, Lawrence <DoerrL@ria.army.mil>
> To: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
> Subject: Tritium Contamination Detectors
> Date: Tuesday, April 14, 1998 5:07 PM
> 
> Does anyone know of a survey instrument capable of detecting fixed
> tritium contamination?  EG&G Berthold claims that the thin Mylar
> windowed LB 1230T1 is the only such detector.  If you have used this
> detector, please tell me what you think.
> 
> Any and all comments are appreciated.
> 
> Thanks
> doerrl@ria.army.mil
>