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Keywords: hadronic reactions, neutrons
Forum: Hadronic Processes
Re: None Why does not my reaction work? (gin chen)
Date: 07 Apr, 2008
From: Dennis H. Wright <Dennis H. Wright>

Unfortunately, there is no good model for you to use in Geant4.   The 
G4BinaryLightIonReaction is not reliable below about 80 MeV.   The closest
model to your needs is G4LEDeuteronInelastic, but all of the G4LE...
models were designed to reproduce shower shapes and do not conserve
things like baryon number or charge.   It will produce neutrons from the
d,d reaction but not 3He.   Specific channels like this were never 
envisioned for this model.  

Your best bet is to modify your copy of Geant4 to explicitly include the
n 3He final state.   For this you must modify 
G4LEDeuteronInelastic::ApplyYourself to include your channel.  Also,
geant4/source/processes/
hadronic/util/src/G4ReactionDynamics::NuclearReaction
must be modified to calculate the reaction Q-value and sample it in
competition with the other, existing channels.

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