Geant4 Cross Reference

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Geant4/examples/extended/electromagnetic/TestEm0/src/PrimaryGeneratorAction.cc

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 25 //
 26 /// \file electromagnetic/TestEm0/src/PrimaryGeneratorAction.cc
 27 /// \brief Implementation of the PrimaryGeneratorAction class
 28 //
 29 //
 30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 32 
 33 #include "PrimaryGeneratorAction.hh"
 34 
 35 #include "DetectorConstruction.hh"
 36 
 37 #include "G4Event.hh"
 38 #include "G4ParticleDefinition.hh"
 39 #include "G4ParticleTable.hh"
 40 #include "G4SystemOfUnits.hh"
 41 
 42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 43 
 44 PrimaryGeneratorAction::PrimaryGeneratorAction(DetectorConstruction* detector) : fDetector(detector)
 45 {
 46   fParticleGun = new G4ParticleGun(1);
 47   SetDefaultKinematic();
 48 }
 49 
 50 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 51 
 52 PrimaryGeneratorAction::~PrimaryGeneratorAction()
 53 {
 54   delete fParticleGun;
 55 }
 56 
 57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 58 
 59 void PrimaryGeneratorAction::SetDefaultKinematic()
 60 {
 61   G4ParticleDefinition* particle = G4ParticleTable::GetParticleTable()->FindParticle("e-");
 62   fParticleGun->SetParticleDefinition(particle);
 63   fParticleGun->SetParticleMomentumDirection(G4ThreeVector(1., 0., 0.));
 64   fParticleGun->SetParticleEnergy(100 * MeV);
 65   G4double position = -0.5 * (fDetector->GetSize());
 66   fParticleGun->SetParticlePosition(G4ThreeVector(position, 0. * cm, 0. * cm));
 67 }
 68 
 69 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 70 
 71 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
 72 {
 73   // this function is called at the begining of event
 74   //
 75   fParticleGun->GeneratePrimaryVertex(anEvent);
 76 }
 77 
 78 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 79