Hello Nesrine,
You are requesting low-energy neutrons (i.e. below 20MeV). They follow a special group treatment and you need special cards to enable them. I suggest you have a look to the most recent "Low energy Neutrons" lecture of the FLUKA course series. You can find the slides here<
https://indico.cern.ch/event/442634/contribution/16/attachments/1185163/1717805/10_Low_Energy_Neutrons_2015.pdf> (as well as many other interesting lectures). In short you'll have to use LOW-MAT cards to link low neutron libraries to your materials. In the case of a compound, you have to insert a LOW-MAT card for each element in the compound. in addition, you have to make sure LOW-NEUT is present in your input as well.
I'll let you check the slides and correct your input file. If you still encounter problems with the LOW-MAT and LOW-NEUT, I'll be happy to give you more details
Best regards
Philippe
From: owner-fluka-discuss_at_mi.infn.it [mailto:owner-fluka-discuss_at_mi.infn.it] On Behalf Of Nesrine Dinar
Sent: 22 March 2016 14:14
To: fluka-discuss_at_fluka.org
Subject: [fluka-discuss]: 35 Cl neutron cross section question
Dear Fluka expert,
I would like to simulate a mono energetic neutron beam from 1 MeV to 20 MeV impinging on a CLYC scintillator (composed of Cesium 133, Lithium 7, yttrium , and Chlorine 35).
I would like to score what kind of particle are created inside my target (1inch 1 inch cylinder).
I know from the literature that proton should be created thank to the reaction 35Cl (n,p)35S.
But when I score the proton fluence (usrbin) but it seems that there are no proton production .....
I was wondering if it is possible that this problem could be related to the missing cross section for the 35 Cl ? If so, is there a way to add the cross section for this isotope ?
Thanks for your help,
Nesrine
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Received on Tue Mar 22 2016 - 18:17:39 CET