|Message: Doppler broadening from proton inelastic collision with nucleus||Not Logged In (login)|
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I am looking into the scattered gamma spectrum produced by a 40 MeV proton beam on a carbon target. From experimental measurements, the 4.4 MeV carbon peak created by the de-excitation of the nucleus should be doppler-broadened, but my simulations do not replicate this phenomenon, instead giving a sharp peak. Is it possible to reproduce this doppler-broadening with Geant4? I found that the NeutronHP model produces the doppler-broadening for neutrons, but it doesn't seem to do anything for protons. Thanks for your help, Steve
PS. I am using Geant4.9.1 with the precompound physics list from the Hadrontherapy example.
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