Geant4 Cross Reference |
1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 // 26 // 27 /// \file B4/B4d/src/PrimaryGeneratorAction.cc 28 /// \brief Implementation of the B4::PrimaryGe 29 30 #include "PrimaryGeneratorAction.hh" 31 32 #include "G4Box.hh" 33 #include "G4LogicalVolume.hh" 34 #include "G4LogicalVolumeStore.hh" 35 #include "G4ParticleGun.hh" 36 #include "G4ParticleTable.hh" 37 #include "G4SystemOfUnits.hh" 38 #include "globals.hh" 39 40 namespace B4 41 { 42 43 //....oooOO0OOooo........oooOO0OOooo........oo 44 45 PrimaryGeneratorAction::PrimaryGeneratorAction 46 { 47 G4int nofParticles = 1; 48 fParticleGun = new G4ParticleGun(nofParticle 49 50 // default particle kinematic 51 // 52 auto particleDefinition = G4ParticleTable::G 53 fParticleGun->SetParticleDefinition(particle 54 fParticleGun->SetParticleMomentumDirection(G 55 fParticleGun->SetParticleEnergy(300. * MeV); 56 } 57 58 //....oooOO0OOooo........oooOO0OOooo........oo 59 60 PrimaryGeneratorAction::~PrimaryGeneratorActio 61 { 62 delete fParticleGun; 63 } 64 65 //....oooOO0OOooo........oooOO0OOooo........oo 66 67 void PrimaryGeneratorAction::GeneratePrimaries 68 { 69 // This function is called at the begining o 70 71 // In order to avoid dependence of PrimaryGe 72 // on DetectorConstruction class we get worl 73 // from G4LogicalVolumeStore 74 // 75 G4double worldZHalfLength = 0.; 76 auto worldLV = G4LogicalVolumeStore::GetInst 77 78 // Check that the world volume has box shape 79 G4Box* worldBox = nullptr; 80 if (worldLV) { 81 worldBox = dynamic_cast<G4Box*>(worldLV->G 82 } 83 84 if (worldBox) { 85 worldZHalfLength = worldBox->GetZHalfLengt 86 } 87 else { 88 G4ExceptionDescription msg; 89 msg << "World volume of box shape not foun 90 msg << "Perhaps you have changed geometry. 91 msg << "The gun will be place in the cente 92 G4Exception("PrimaryGeneratorAction::Gener 93 } 94 95 // Set gun position 96 fParticleGun->SetParticlePosition(G4ThreeVec 97 98 fParticleGun->GeneratePrimaryVertex(event); 99 } 100 101 //....oooOO0OOooo........oooOO0OOooo........oo 102 103 } // namespace B4 104