Re: Evaluating double differential cross section from USRYIELD

From: <>
Date: Fri, 10 Jul 2009 15:10:47 +0200 (CEST)

Dear Andrzej,
 "Which thicknes of target is correct?"
Well, if you are simulating an experiment you have to use the experimental
thickness on the other hand it's clear that the spectra depend on the
target thickness. What are you interested in?
Two remarks from the manual:
1)"Note that calculating a cross section has little meaning in case of a
thick target."
2)"Point-target yields, i.e. yields of particles emerging from
inelastic hadronic interactions with single nuclei (includinghadronic
interactions by ions and real or virtual photons), are scored by setting
WHAT(4) = -1.0 and WHAT(5) = -2.0 in the first USRYIELD card."

> Dear FLUKA users
> How correct calculate the double differ.cross section using USRYIELD
> command?
> The results strongly depends on the thicknes of target (see input file).
> Wchich thicknes of target is coorrect?
> Kind regards
> Andrzej
Received on Fri Jul 10 2009 - 20:56:48 CEST

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