Re: Temperature dependence of TLD response

[rkathren@tricity.WSU.edu (Ron L. Kathren)]

While it is unlikely that there will be any practical effect on comeercial
TLD materials over the temperature range cited, certainly at the higher
temperature there will be a greater probaility of emptying the low energy
traps.  Probability of trap emptying follows an e to the kt relationship,
where t is the temperature and k (simply stated) is a constant (actually a
proability) of electrons escaping from the trap.  k has different values for
different TLD materials and traps.

Ron Kathren

 At 02:33 PM 1/4/99 -0600, Clement, Christopher wrote:
>Radsafers:
>
>I expect that there's a "quick and easy" answer to the following question:
>
>What is the temperature (or other meteorological e.g. humidity) dependence
>on the response of TLDs?  I'm interested in using standard LiF TLDs for
>environmental measurements of gamma radiation over a year or so, and they
>may therefore be subjected to temperatures ranging from -40 to +30 Celsius.
>
>I assume that LiF TLDs are the best bet for an integrated long-term,
>low-cost, low-maintenance, environmental gamma radiation measurement.  If
>not I'd appreciate any advice on the choice of 
>
>Thanks.
>
>------------------------------------------------------------
>Christopher H. Clement
>Scientific Specialist / Radiation Protection Program Manager
>Low-Level Radioactive Waste Management Office
>Atomic Energy of Canada Limited
>clementc@aecl.ca
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