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None Cross section information not found for some nuclei 

Forum: Hadronic Processes
Date: 26 Jan, 2012
From: Valentina <Valentina>

Hello, I'm using geant4-09-03 to simulate some neutron processes. Sometime I got this error message:

NeutronHP: /Elastic/ file for Z = 6, A = 13 is not found and NeutronHP will use /opt/exp_software/superb/SL-5.3_x86_64/cern/geant4/data/G4NDL3.13/Elastic///CrossSection/6_nat_Carbon

from what I understand since there is no information about the elastic cross section for neutron on Carbon13 it is used the information of naturalCarbon.

If I would like to add the file for Carbon13 how do I have to do it? And how do I have to write this txt file? Opening one of them I saw a big list of numbers what do they represent? Best Regards Valentina

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