GB01/src/GB01PrimaryGeneratorAction.cc

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0025 //
0026 /// \file GB01/src/GB01PrimaryGeneratorAction.cc
0027 /// \brief Implementation of the GB01PrimaryGeneratorAction class
0028 //
0029 #include "GB01PrimaryGeneratorAction.hh"
0030
0031 #include "G4Event.hh"
0032 #include "G4ParticleDefinition.hh"
0033 #include "G4ParticleGun.hh"
0034 #include "G4ParticleTable.hh"
0035 #include "G4SystemOfUnits.hh"
0036 #include "Randomize.hh"
0037
0038 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0039
0040 GB01PrimaryGeneratorAction::GB01PrimaryGeneratorAction()
0041 {
0042   G4int n_particle = 1;
0043   fParticleGun = new G4ParticleGun(n_particle);
0044
0045   // default particle kinematic
0046   G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
0047   G4String particleName;
0048   G4ParticleDefinition* particle = particleTable->FindParticle(particleName = "gamma");
0049   fParticleGun->SetParticleDefinition(particle);
0050   fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0., 0., 1.));
0051   fParticleGun->SetParticleEnergy(100. * MeV);
0052   fParticleGun->SetParticlePosition(G4ThreeVector(0., 0., -50 * cm));
0053 }
0054
0055 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0056
0057 GB01PrimaryGeneratorAction::~GB01PrimaryGeneratorAction()
0058 {
0059   delete fParticleGun;
0060 }
0061
0062 void GB01PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0063 {
0064   fParticleGun->GeneratePrimaryVertex(anEvent);
0065 }