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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 //....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