decayer6/src/GunPrimaryGeneratorAction.cc

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0025 //
0026 /// \file GunPrimaryGeneratorAction.cc
0027 /// \brief Implementation of the Common::GunPrimaryGeneratorAction class
0028
0029 #include "GunPrimaryGeneratorAction.hh"
0030
0031 #include "G4Event.hh"
0032 #include "G4ParticleDefinition.hh"
0033 #include "G4ParticleGun.hh"
0034 #include "G4ParticleTable.hh"
0035
0036 namespace Common
0037 {
0038
0039 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0040
0041 GunPrimaryGeneratorAction::GunPrimaryGeneratorAction(const G4String& particleName, G4double energy,
0042                                                      G4ThreeVector position,
0043                                                      G4ThreeVector momentumDirection)
0044 {
0045   G4int nofParticles = 1;
0046   fParticleGun = new G4ParticleGun(nofParticles);
0047
0048   // default particle kinematic
0049   G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
0050   G4ParticleDefinition* particle = particleTable->FindParticle(particleName);
0051   fParticleGun->SetParticleDefinition(particle);
0052   fParticleGun->SetParticleEnergy(energy);
0053   fParticleGun->SetParticlePosition(position);
0054   fParticleGun->SetParticleMomentumDirection(momentumDirection);
0055 }
0056
0057 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0058
0059 GunPrimaryGeneratorAction::~GunPrimaryGeneratorAction()
0060 {
0061   delete fParticleGun;
0062 }
0063
0064 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0065
0066 void GunPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0067 {
0068   // this function is called at the begining of event
0069
0070   fParticleGun->GeneratePrimaryVertex(anEvent);
0071 }
0072
0073 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0074
0075 }  // namespace Common