Dear Roman
your scoring is correct,
the difference is in the units:
The plot in page 2 of the fluka lecture gives particle spectra in MeV/amu,
that is energy per nucleon
USRBDX (and USRYIELD) outputs are in GeV, total energy
The difference in unit affects the horizontal scale and the normalization
by a factor (/ or *) atomic mass of the ion specie
Hope this helps
Paola
> dear Fluka experts,
>
>
> What is the proper way to score a specific particle (say He or C) from a
> composite source?
>
> I have GCR_IONF with WHAT(1)=6 meaning the source consist of H, He, ...,
> B, C. I am scoring with USRBDX. Hydrogen comes out right because there is
> a "proton" option in the drop down menu in USRBDX but what should I do to
> score, say, Helium or Carbon?
>
> I tried to use AUXSCORE by choosing Heavyion in USRBDX and Z=6 in
> AUXSCORE (or WHAT(2)=-600)
>
> The results doesn't match what I expect from here (pg.2):
>
> https://www.fluka.org/free_download/course/triumf2012/Lectures/AdvancedCosmicRays2012.pdf
>
> looks like Helium and Carbon spectras are shifted to the right and scaled
> down.
>
>
>
> <https://www.fluka.org/free_download/course/triumf2012/Lectures/AdvancedCosmicRays2012.pdf>thank
> you,
>
>
> Roman
>
>
>
>
Paola Sala
INFN Milano
tel. Milano +39-0250317374
tel. CERN +41-227679148
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Received on Wed Nov 18 2015 - 09:30:43 CET