rdecay02/src/PrimaryGeneratorAction.cc

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0025 //
0026 /// \file PrimaryGeneratorAction.cc
0027 /// \brief Implementation of the PrimaryGeneratorAction class
0028 //
0029 //
0030 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0031 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0032
0033 #include "PrimaryGeneratorAction.hh"
0034
0035 #include "G4Event.hh"
0036 #include "G4Geantino.hh"
0037 #include "G4IonTable.hh"
0038 #include "G4ParticleDefinition.hh"
0039 #include "G4ParticleTable.hh"
0040 #include "G4SystemOfUnits.hh"
0041 #include "Randomize.hh"
0042
0043 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0044
0045 PrimaryGeneratorAction::PrimaryGeneratorAction()
0046 {
0047   G4int n_particle = 1;
0048   fParticleGun = new G4ParticleGun(n_particle);
0049
0050   fParticleGun->SetParticleEnergy(0 * eV);
0051   fParticleGun->SetParticlePosition(G4ThreeVector(0. * cm, 0. * cm, 0. * cm));
0052   fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0., 0., 1.));
0053 }
0054
0055 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0056
0057 PrimaryGeneratorAction::~PrimaryGeneratorAction()
0058 {
0059   delete fParticleGun;
0060 }
0061
0062 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0063
0064 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0065 {
0066   if (fParticleGun->GetParticleDefinition() == G4Geantino::Geantino()) {
0067     G4int Z = 10, A = 24;
0068     G4double ionCharge = 0. * eplus;
0069     G4double excitEnergy = 0. * keV;
0070
0071     G4ParticleDefinition* ion = G4IonTable::GetIonTable()->GetIon(Z, A, excitEnergy);
0072     fParticleGun->SetParticleDefinition(ion);
0073     fParticleGun->SetParticleCharge(ionCharge);
0074   }
0075   // create vertex
0076   //
0077   fParticleGun->GeneratePrimaryVertex(anEvent);
0078 }
0079
0080 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......