Re: Scoring Low-Energy Electrons

From: Alberto Fasso' <fasso_at_SLAC.Stanford.EDU>
Date: Sun, 26 Jul 2009 14:57:28 -0700 (PDT)

Dear Johannes,

first of all, FLUKA cannot transport electrons at energies below 1 keV:
1 keV is the lowest limit.

Concerning MULSOPT, to activate single scattering you must set SDUM=GLOBAL and
WHAT(6) > 1000.
I don't know what FLAIR does (it should work, but if it doesn't, you can
always override FLAIR writing the correct card by hand...)


On Fri, 24 Jul 2009, wrote:

> Dear Fluka experts,
> I would like to be able to detect electrons at energies below 1keV in Argon,
> using the USRTRACk (linear binning, starting at E_min= 0.0) card.
> In the manual it is said that in order to obtain good results with low energy
> electrons one has to use the MULSOPT card, activating only single scattering.
> Now, I am using Flair and somehow it is not possible to set WHAT(3)=0.0
> ("Stretching") of MULSOPT... If I do not take any of the values of the drag
> down Fluka crashes.
> What am I doing wrong?
> Thank you for your help and for the advice I generally received so far!
> Johannes

Alberto Fasso`
SLAC-RP, MS 48, 2575 Sand Hill Road, Menlo Park CA 94025
Phone: (1 650) 926 4762   Fax: (1 650) 926 3569
Received on Mon Jul 27 2009 - 10:08:27 CEST

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