BULK: Re: [ RadSafe ] Can tritium produce bremsstrahlung?

Tom Harrison HarrisoT at adaf.admin.unt.edu
Wed Feb 22 15:07:06 CST 2006



wait a minute Gang... I may be very wrong as many times I am, but  the
peak internsity energy for spectral  beta emitters like H-3 is not the
18.6 kev end point energy , but rather the 18.6/3 peak energy for the
betas, or about 6 kev..... then you gott'a  convolute the bremmstrahlung
energy spectrum onto this peak meaning that in the final analysis you'd
be looking for 1-2 kev X-rays peak, which is less than the
bremmstrahlung 
X-rays you would get off an X-ray tube ... unless the H-3 source is
well into the curie(excuse the oldie but goodie  units)  activity range,
the chances of detecting 1-2 kev X-rays with any probe are probably
pretty remote..... am I missing something here ???

Tom Harrison, Ph.D.
University of North Texas
Denton, TX  
HarrisoT at adaf.admin.unt.edu 




Thomas G. Harrison, Ph.D.
Radiation Safety Officer
Room 245 ESaT Bldg
UNT
tel:      (940)565-3282
page:  (817)824-9349






>>> Brian Rees <brees at lanl.gov> 2/21/2006 4:03 PM >>>
Oh rats, my favorite source of winning beer will be gone.  Most folks
will 
bet that you can't, but go find a tritium exit sign.  Any time you get

10^11 or 10^12 things occurring every second even low probability
things 
happen.  It's not a stupid question at all, just go try it.

Brian Rees



At 12:04 PM 2/21/2006, Jon Stieglitz wrote:
>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.
>
>
>
>
>
>J. Stieglitz
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