Geant4 Cross Reference

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Geant4/examples/extended/persistency/P01/src/ExP01PrimaryGeneratorAction.cc

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 25 //
 26 /// \file persistency/P01/src/ExP01PrimaryGeneratorAction.cc
 27 /// \brief Implementation of the ExP01PrimaryGeneratorAction class
 28 //
 29 //
 30 //
 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 33 
 34 #include "ExP01PrimaryGeneratorAction.hh"
 35 
 36 #include "ExP01DetectorConstruction.hh"
 37 
 38 #include "G4Event.hh"
 39 #include "G4ParticleDefinition.hh"
 40 #include "G4ParticleGun.hh"
 41 #include "G4ParticleTable.hh"
 42 #include "G4SystemOfUnits.hh"
 43 #include "globals.hh"
 44 
 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 46 
 47 ExP01PrimaryGeneratorAction::ExP01PrimaryGeneratorAction(ExP01DetectorConstruction* myDC)
 48   : G4VUserPrimaryGeneratorAction(), fParticleGun(0), fMyDetector(myDC)
 49 {
 50   G4int n_particle = 1;
 51   fParticleGun = new G4ParticleGun(n_particle);
 52 
 53   // default particle
 54 
 55   G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
 56   G4ParticleDefinition* particle = particleTable->FindParticle("proton");
 57 
 58   fParticleGun->SetParticleDefinition(particle);
 59   fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0., 0., 1.));
 60   fParticleGun->SetParticleEnergy(3.0 * GeV);
 61 }
 62 
 63 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 64 
 65 ExP01PrimaryGeneratorAction::~ExP01PrimaryGeneratorAction()
 66 {
 67   delete fParticleGun;
 68 }
 69 
 70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 71 
 72 void ExP01PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
 73 {
 74   G4double position = -0.5 * (fMyDetector->GetWorldFullLength());
 75   fParticleGun->SetParticlePosition(G4ThreeVector(0. * cm, 0. * cm, position));
 76 
 77   fParticleGun->GeneratePrimaryVertex(anEvent);
 78 }
 79 
 80 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 81