From: Sebastien WURTH (wurth@ipno.in2p3.fr)
Date: Tue Mar 04 2008 - 14:55:45 CET
040910
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To: "Ing. Alessandro A. Porta" <porta@nuclearmi.cesnef.polimi.it>
CC: fluka-discuss@fluka.org
Subject: Re: to Sebastien, it could be useful: Example-HPGe.doc
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Hello Alessandro, hello everyone,
It is very useful indeed, thank you very much for sharing this.
It is still mysterious to me how you calculate your efficiency from=20
DETECT card. Is it as I assume, a ratio between the counts in your=20
detector at the energy you want divided by the number of primaries which=20
represents here the number of events delivered by the source ?
I use a very simple example which has nothing to do with a real case=20
(compared to yours).
But I use the same set of defaults as you, put my EMF-CUT cards,=20
PHYSICS, EVENTYPE cards like yours (just in case), of course no biasing,=20
and I have still that sort of stopping power effect in my DETECT card.
My first purpose : I only wanted to see if these physical effects took=20
place, ie the peak of efficiency at energies ~100-150 keV. I think I=20
should see this, even with my trivial sample with an isotropic point=20
source at 10 cm centered around a Ge cylinder circular face. With values=20
which won't mean anything, but I should have the same curve as in your=20
document, shouldn't I ?
I keep on searching...
Best regards.
Sebastien.
Ing. Alessandro A. Porta a wrote :
>This is a very simple but efficient example about an HPGe chrystal "sample=
d"
>vith a DETECT card.
>It works very well since years (... for me, at least...).
>
>Hope it could be useful.
>
>Best regards.
>
>Alessandro
>
>______________________________________________
> =AB=A4=BB=A5=AB=A4=BB=A7=AB=A4=BB=A5=AB=A4=BB=A7=AB=A4=BB=A5=AB=A4=BB=A7=
=AB=A4=BB=A5=AB=A4=BB=A7=AB=A4=BB=A5=AB=A4=BB=A7=AB=A4=BB=A5=AB=A4
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Alessandro A. Porta, Ing., EQ III, Ph.D.
>CESNEF - Politecnico di Milano
>Via Ponzio 34/3 - 20133 Milano - Italy
>ph.: +39-02-2399-6365 / 6300
>fax. +39-02-2399-6309
>e-mail: alessandro.porta@polimi.it
>URL: http://www.radioprotezione.polimi.it
>______________________________________________
> =AB=A4=BB=A5=AB=A4=BB=A7=AB=A4=BB=A5=AB=A4=BB=A7=AB=A4=BB=A5=AB=A4=BB=A7=
=AB=A4=BB=A5=AB=A4=BB=A7=AB=A4=BB=A5=AB=A4=BB=A7=AB=A4=BB=A5=AB=A4
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> =20
>
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