Dear Florian,
as far as I know there is no more "direct" way of getting this result.
Since the monte-carlo approach is used with the interaction models in such cases, the code does not know a priori what the cross-section are.
kind regards
Lefteris
-----------------------
Eleftherios Skordis
Dep. EN/STI, CERN
CH-1211 GENEVA 23
SWITZERLAND
OFFICE: +41-22-7679541<tel:%2B41-22-7675461>
________________________________
From: Florian Brüser [Florian.Brueser_at_student.uibk.ac.at]
Sent: 20 November 2018 16:21
To: Eleftherios Skordis
Cc: fluka-discuss
Subject: Re: [fluka-discuss]: Isotopic production cross sections using fluka
Dear Lefteris,
thanks for the suggestions. I hadn't had flair installed yet so I wasn't aware of its functions but it should help a lot with generating the different input files and running them.
Nevertheless, a direct approach as described in the linked paper where the cross sections are obtained directly from the used theoretical models (Peanut, Glauber-Gribov) would still be very interesting as the required calculation from particle yield to cross section is skipped. Do you know if something like that is possible using the Fluka code or if access to the (nonbinary) source code is required for that?
Best regards,
Florian
Am 20.11.18 um 11:58 schrieb Eleftherios Skordis:
Dear Florian,
If your problem is the high number of scoring cards you have to handle then you could try to write your own user routine.
For example using mgdraw (USDRAW) to dump the information of secondaries and calculate the cross sections by hand. However, that would require some extra work.
You can read some info about using fluka user routines from the course
https://indico.cern.ch/event/489973/contributions/2000440/attachments/1272042/1972478/09_AdvancedUserRoutines2016.pdf
However, what you can to do to simplify the production of your input files is to use variables to define the linked properties in your input and then you can use the flair loop capability to create input files for different cases/energies etc.
Attached some screenshots of the variable definition and the loop variable option you can find in the Run tab.
Hope this helps
Kind regards
Lefteris
-----------------------
Eleftherios Skordis
Dep. EN/STI, CERN
CH-1211 GENEVA 23
SWITZERLAND
OFFICE: +41-22-7679541<tel:%2B41-22-7675461>
________________________________
From: owner-fluka-discuss_at_mi.infn.it<mailto:owner-fluka-discuss_at_mi.infn.it> [owner-fluka-discuss_at_mi.infn.it<mailto:owner-fluka-discuss_at_mi.infn.it>] on behalf of Florian Brüser [Florian.Brueser_at_student.uibk.ac.at<mailto:Florian.Brueser_at_student.uibk.ac.at>]
Sent: 20 November 2018 10:45
To: fluka-discuss
Subject: [fluka-discuss]: Isotopic production cross sections using fluka
Dear Fluka experts,
I am currently using Fluka to simulate interactions between a heavyion beam (different isotopes) and a hydrogen target to determine isotopic production cross sections relevant for CR propagation using USRYIELD and AUXSCORE. I have used this approach to obtain production cross sections for 12C, 13C and 14N-beams at various beam energies between a few MeV/n and multiple GeV/n.
My problem is that I want to obtain cross sections from 40 different isotopes at different energies and so far I don't see any way to do this but to create a separate input file for each isotope and beam energy I am interested in.
Is there any way to simplify this procedure or to directly obtain the cross sections, as described for example in
http://inspirehep.net/record/1480259/files/1479110_125-144.pdf ?
Regards
Florian
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Received on Tue Nov 20 2018 - 19:06:29 CET