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Keywords: inelastic hadronic interactions, light ions
Forum: Hadronic Processes
Re: Question Hadrontherapy HIIonLEP - no alpha interactions over 100 MeV (Adam Hecht)
Date: 10 Mar, 2008
From: Anton Lechner <Anton Lechner>


The G4LEAlphaInelastic model, which is used in the HIIonLEP class in the 
hadrontherapy example, should not be applied above 100 MeV.

A possiblity to simulate inelastic interactions of alpha particles for 
energies > 100 MeV is to use the G4LEAlphaInelastic (for energies < 100 MeV)
and the G4BinaryLightIonReaction (for higher energies):

G4double ionLEPMaxEnergy = 100. * MeV;
G4double ionBinaryMinEnergy = 95. * MeV;
G4double ionBinaryMaxEnergy = 1. * GeV;

G4BinaryLightIonReaction* ionBinaryModel = new G4BinaryLightIonReaction;
ionBinaryModel -> SetMinEnergy(ionBinaryMinEnergy);
ionBinaryModel -> SetMaxEnergy(ionBinaryMaxEnergy);

G4LEAlphaInelastic* alphaLEPModel = new G4LEAlphaInelastic;
alphaLEPModel -> SetMaxEnergy(ionLEPMaxEnergy);

G4AlphaInelasticProcess* alphaInelasticProcess = 
                           new G4AlphaInelasticProcess("inelastic-alpha");

alphaInelasticProcess -> RegisterMe(alphaLEPModel);
alphaInelasticProcess -> RegisterMe(ionBinaryModel);

particle = G4Alpha::Alpha();
processManager = particle -> GetProcessManager();
processManager -> AddDiscreteProcess(alphaInelasticProcess); 

The G4BinaryLightIonReaction model can also be applied to other
ions like deuterons and tritons.

Best regards,
Anton Lechner

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