Re: Temperature dependence of TLD response

[Khalid Aleissa <kaleissa@kacst.edu.sa>]

CaF (or CaSO) works fine for this kind of application as long as a proper
filters are used to eliminate the low energy radiation or radiation that cause
low energy glow peaks. These low energy peaks are very unstable, therefore, it
is better to eliminate them. Ambient temperature within expected range (up to
60 celsius) does not affect the reading. I do not see this is the case in your
environment (-40 to +30 C) but it may gets higher than this in the environment
here. Using light filters (usually black or dark colors) may elevate the
temperature if the TLD is exposed to the solar radiation.

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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Khalid Aleissa
e-mail: kaleissa@kacst.edu.sa


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