Fwd: Re: Dosimetry simulations : composition of materials of interest and results ?

From: <wurth_at_ipno.in2p3.fr>
Date: Wed, 11 May 2011 14:52:28 +0200


You pointed out a major issue of mine.

As I told you, I have the composition of the dosimeter materials
silver-doped-glass for RPL and lithium fluoride for TLD with isotope ratio
7Li/6Li (not the natural one) plus several ppm of doping elements Mg, Cu,
P. So I am using the most precise description I got.

But, what about the materials surrounding these dosimeters ?
Several mm of plastic with very various densities from 0.9 to 1.5 at least.

Maybe I'm laking a little of physics knowledge here (it is quite possible)
but I believed that in matter of deposited energy the density of the
material is really the relevant data assuming of course that the materials
are similar (dealing mostly with C,N,O,H in various quantities).
Especially in some low energy EM problem like mine.

I asked the same question I first asked today on the list about ABS resin
to (I believed) the proper person to the french institute of radiation
safety and radioprotection which is the "provider" of the RPL dosimeter
and surroundings, well just say that I liked your answer more...
And I am sure they conducted simulations too, so someone there did have
those issues at the time.


Best regards.



>> Indeed I saw in the paper you linked that RPL glass could be replaced by
>> plain aluminum, results (considering deposited energy or dose) would not
>> change a lot.
> Yes, but remember that the benchmark to which that paper referred was done
> with a high energy hadron cascade, containing all kinds of particles at
> all kinds of energies. I am not sure that the same could be assumed in a
> low energy problem as yours seems to be.
> Alberto
Received on Wed May 11 2011 - 15:32:01 CEST

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