common/src/GunPrimaryGeneratorAction.cc

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0027 /// \file common/src/GunPrimaryGeneratorAction.cc
0028 /// \brief Implementation of the Common::GunPrimaryGeneratorAction class
0029
0030 #include "GunPrimaryGeneratorAction.hh"
0031
0032 #include "G4Event.hh"
0033 #include "G4ParticleDefinition.hh"
0034 #include "G4ParticleGun.hh"
0035 #include "G4ParticleTable.hh"
0036
0037 namespace Common
0038 {
0039
0040 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0041
0042 GunPrimaryGeneratorAction::GunPrimaryGeneratorAction(const G4String& particleName, G4double energy,
0043                                                      G4ThreeVector position,
0044                                                      G4ThreeVector momentumDirection)
0045 {
0046   G4int nofParticles = 1;
0047   fParticleGun = new G4ParticleGun(nofParticles);
0048
0049   // default particle kinematic
0050   G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
0051   G4ParticleDefinition* particle = particleTable->FindParticle(particleName);
0052   fParticleGun->SetParticleDefinition(particle);
0053   fParticleGun->SetParticleEnergy(energy);
0054   fParticleGun->SetParticlePosition(position);
0055   fParticleGun->SetParticleMomentumDirection(momentumDirection);
0056 }
0057
0058 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0059
0060 GunPrimaryGeneratorAction::~GunPrimaryGeneratorAction()
0061 {
0062   delete fParticleGun;
0063 }
0064
0065 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0066
0067 void GunPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0068 {
0069   // this function is called at the begining of event
0070
0071   fParticleGun->GeneratePrimaryVertex(anEvent);
0072 }
0073
0074 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0075
0076 }  // namespace Common