[ RadSafe ] Can tritium produce bremsstrahlung?
JGinniver at aol.com
JGinniver at aol.com
Tue Feb 21 16:35:04 CST 2006
In a message dated 21/02/2006 21:25:10 GMT Standard Time, stiegli1 at msu.edu
writes:
Could someone please tell me if a beta pancake is able to detect tritium in
any amounts? I have heard from reputable sources that it can. Obviously
the beta is too weak to be detected so as I understand it, the only way
would be to detect the bremsstrahlung radiation. Is tritium energetic
enough to produce bremsstrahlung? Can anyone tell me how much would be
needed? I apologize if this is a stupid question but nobody has totally
answered the question to my satisfaction.
According to the Lawrence Livermore National Laboratory "Because this
attenuation and/or stopping process produces a bremsstrahlung radiation, the
detection of this tritium bremsstrahlung appears to be the most direct and
advantageous way to monitor for STP [stable metal tritides] air contamination.".
They have a short article on the development of a CAM for the measurement of
STPs at : _http://www.llnl.gov/es_and_h/hc_dept/spd/MetalTritides.html_
(http://www.llnl.gov/es_and_h/hc_dept/spd/MetalTritides.html)
However it's not clear what measurement technology they are planing to use
for the detector. Most modern CAM use Passively Implanted Planar Silicon
(PIPS) detectors. I would have thought that if it was possible to use a pancake
geiger to measure tritium bremsstrahlung, then things like the 'Flat Ferret'
from Overhoff would not be in production.
Regards,
Julian
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