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Geant4/examples/extended/hadronic/Hadr07/src/GammaNuclearPhysics.cc

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 26 /// \file hadronic/Hadr03/src/GammaNuclearPhysics.cc
 27 /// \brief Implementation of the GammaNuclearPhysics class
 28 //
 29 //
 30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 31 
 32 #include "GammaNuclearPhysics.hh"
 33 
 34 #include "G4ParticleDefinition.hh"
 35 #include "G4ProcessManager.hh"
 36 
 37 // Processes
 38 
 39 #include "G4CascadeInterface.hh"
 40 #include "G4HadronInelasticProcess.hh"
 41 #include "G4LowEGammaNuclearModel.hh"
 42 #include "G4PhotoNuclearCrossSection.hh"
 43 #include "G4SystemOfUnits.hh"
 44 
 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 46 
 47 GammaNuclearPhysics::GammaNuclearPhysics(const G4String& name) : G4VPhysicsConstructor(name) {}
 48 
 49 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 50 
 51 void GammaNuclearPhysics::ConstructProcess()
 52 {
 53   G4HadronInelasticProcess* process =
 54     new G4HadronInelasticProcess("photonNuclear", G4Gamma::Definition());
 55   process->AddDataSet(new G4PhotoNuclearCrossSection);
 56 
 57   // to not register a model, set Emax=0; eg. Emax1 = 0.
 58   const G4double Emax1 = 200 * MeV, Emax2 = 10 * GeV;
 59 
 60   if (Emax1 > 0.) {  // model 1
 61     G4LowEGammaNuclearModel* model1 = new G4LowEGammaNuclearModel();
 62     model1->SetMaxEnergy(Emax1);
 63     process->RegisterMe(model1);
 64   }
 65 
 66   if (Emax2 > 0.) {  // model 2
 67     G4CascadeInterface* model2 = new G4CascadeInterface();
 68     G4double Emin2 = std::max(Emax1 - 1 * MeV, 0.);
 69     model2->SetMinEnergy(Emin2);
 70     model2->SetMaxEnergy(Emax2);
 71     process->RegisterMe(model2);
 72   }
 73 
 74   G4ProcessManager* pManager = G4Gamma::Gamma()->GetProcessManager();
 75   pManager->AddDiscreteProcess(process);
 76 }
 77 
 78 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 79