P03/src/ExTGPrimaryGeneratorAction.cc

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0025 //
0026 /// \file ExTGPrimaryGeneratorAction.cc
0027 /// \brief Implementation of the ExTGPrimaryGeneratorAction class
0028
0029 #include "ExTGPrimaryGeneratorAction.hh"
0030
0031 #include "G4Event.hh"
0032 #include "G4ParticleDefinition.hh"
0033 #include "G4ParticleGun.hh"
0034 #include "G4ParticleTable.hh"
0035 #include "G4SystemOfUnits.hh"
0036 #include "globals.hh"
0037
0038 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0039 ExTGPrimaryGeneratorAction::ExTGPrimaryGeneratorAction()
0040 {
0041   G4int n_particle = 1;
0042   fParticleGun = new G4ParticleGun(n_particle);
0043
0044   // default particle
0045
0046   G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
0047   G4ParticleDefinition* particle = particleTable->FindParticle("e-");
0048
0049   fParticleGun->SetParticleDefinition(particle);
0050   fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0., 0., 1.));
0051   fParticleGun->SetParticleEnergy(10 * MeV);
0052 }
0053
0054 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0055 ExTGPrimaryGeneratorAction::~ExTGPrimaryGeneratorAction()
0056 {
0057   delete fParticleGun;
0058 }
0059
0060 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0061 void ExTGPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0062 {
0063   fParticleGun->SetParticlePosition(G4ThreeVector(0. * cm, 0. * cm, 0. * cm));
0064
0065   fParticleGun->GeneratePrimaryVertex(anEvent);
0066 }