rdecay02/src/PrimaryGeneratorAction.cc

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