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1 // 2 // ******************************************************************** 3 // * License and Disclaimer * 4 // * * 5 // * The Geant4 software is copyright of the Copyright Holders of * 6 // * the Geant4 Collaboration. It is provided under the terms and * 7 // * conditions of the Geant4 Software License, included in the file * 8 // * LICENSE and available at http://cern.ch/geant4/license . These * 9 // * include a list of copyright holders. * 10 // * * 11 // * Neither the authors of this software system, nor their employing * 12 // * institutes,nor the agencies providing financial support for this * 13 // * work make any representation or warranty, express or implied, * 14 // * regarding this software system or assume any liability for its * 15 // * use. Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitation of liability. * 17 // * * 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************************************** 25 // 26 /// \file hadronic/Hadr03/src/GammaNuclearPhysics.cc 27 /// \brief Implementation of the GammaNuclearPhysics class 28 // 29 // 30 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 32 33 #include "GammaNuclearPhysics.hh" 34 35 #include "G4ParticleDefinition.hh" 36 #include "G4ProcessManager.hh" 37 38 // Processes 39 40 #include "G4CascadeInterface.hh" 41 #include "G4HadronInelasticProcess.hh" 42 #include "G4LowEGammaNuclearModel.hh" 43 #include "G4PhotoNuclearCrossSection.hh" 44 #include "G4SystemOfUnits.hh" 45 46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 47 48 GammaNuclearPhysics::GammaNuclearPhysics(const G4String& name) : G4VPhysicsConstructor(name) {} 49 50 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 51 52 void GammaNuclearPhysics::ConstructProcess() 53 { 54 G4HadronInelasticProcess* process = 55 new G4HadronInelasticProcess("photonNuclear", G4Gamma::Definition()); 56 process->AddDataSet(new G4PhotoNuclearCrossSection); 57 58 // to not register a model, set Emax=0; eg. Emax1 = 0. 59 const G4double Emax1 = 200 * MeV, Emax2 = 10 * GeV; 60 61 if (Emax1 > 0.) { // model 1 62 G4LowEGammaNuclearModel* model1 = new G4LowEGammaNuclearModel(); 63 model1->SetMaxEnergy(Emax1); 64 process->RegisterMe(model1); 65 } 66 67 if (Emax2 > 0.) { // model 2 68 G4CascadeInterface* model2 = new G4CascadeInterface(); 69 G4double Emin2 = std::max(Emax1 - 1 * MeV, 0.); 70 model2->SetMinEnergy(Emin2); 71 model2->SetMaxEnergy(Emax2); 72 process->RegisterMe(model2); 73 } 74 75 G4ProcessManager* pManager = G4Gamma::Gamma()->GetProcessManager(); 76 pManager->AddDiscreteProcess(process); 77 } 78 79 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 80