Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/examples/extended/hadronic/Hadr10/src/PrimaryGeneratorAction.cc

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 25 //
 26 /// \file PrimaryGeneratorAction.cc
 27 /// \brief Implementation of the PrimaryGeneratorAction class
 28 //
 29 //
 30 
 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 33 
 34 #include "PrimaryGeneratorAction.hh"
 35 
 36 #include "G4Event.hh"
 37 #include "G4ParticleDefinition.hh"
 38 #include "G4ParticleGun.hh"
 39 #include "G4ParticleTable.hh"
 40 #include "G4SystemOfUnits.hh"
 41 #include "globals.hh"
 42 
 43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 44 
 45 PrimaryGeneratorAction::PrimaryGeneratorAction()
 46   : G4VUserPrimaryGeneratorAction(), fParticleGun(nullptr)
 47 {
 48   G4int n_particle = 1;
 49   fParticleGun = new G4ParticleGun(n_particle);
 50   G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
 51   //***LOOKHERE*** Default particle, tau-, and energy, 500 GeV
 52   fParticleGun->SetParticleDefinition(particleTable->FindParticle("tau-"));
 53   fParticleGun->SetParticleEnergy(500.0 * GeV);
 54   SetGunPosition();
 55 }
 56 
 57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 58 
 59 PrimaryGeneratorAction::~PrimaryGeneratorAction()
 60 {
 61   delete fParticleGun;
 62 }
 63 
 64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 65 
 66 void PrimaryGeneratorAction::SetGunPosition() const
 67 {
 68   // Shoot the particle from the origin
 69   fParticleGun->SetParticlePosition(G4ThreeVector(0.0, 0.0, 0.0));  //***LOOKHERE***
 70 }
 71 
 72 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 73 
 74 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
 75 {
 76   G4ThreeVector v(1.0, 0.0, 0.0);  //***LOOKHERE*** default shoot along the x-axis
 77   fParticleGun->SetParticleMomentumDirection(v);
 78   fParticleGun->GeneratePrimaryVertex(anEvent);
 79 }
 80 
 81 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 82