Hadr08/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 "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
0040 PrimaryGeneratorAction::PrimaryGeneratorAction()
0041   : G4VUserPrimaryGeneratorAction(), fParticleGun(nullptr)
0042 {
0043   G4int n_particle = 1;
0044   fParticleGun = new G4ParticleGun(n_particle);
0045   G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
0046   G4String particleName;
0047   G4ParticleDefinition* particle = particleTable->FindParticle(particleName = "pi+");
0048   fParticleGun->SetParticleDefinition(particle);
0049   fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0.0, 0.0, 1.0));
0050   fParticleGun->SetParticleEnergy(5.0 * GeV);
0051   fParticleGun->SetParticlePosition(G4ThreeVector(0.0, 0.0, -50.0 * cm));
0052 }
0053
0054 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0055
0056 PrimaryGeneratorAction::~PrimaryGeneratorAction()
0057 {
0058   delete fParticleGun;
0059 }
0060
0061 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0062
0063 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0064 {
0065   fParticleGun->GeneratePrimaryVertex(anEvent);
0066 }
0067
0068 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0069
0070 G4ParticleGun* PrimaryGeneratorAction::GetParticleGun()
0071 {
0072   return fParticleGun;
0073 }
0074
0075 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......