TestEm9/src/PrimaryGeneratorAction.cc

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0025 //
0026 /// \file PrimaryGeneratorAction.cc
0027 /// \brief Implementation of the PrimaryGeneratorAction class
0028
0029 /////////////////////////////////////////////////////////////////////////
0030 //
0031 // TestEm9: Crystal calorimeter
0032 //
0033 // Created: 31.01.03 V.Ivanchenko
0034 //
0035 // Modified:
0036 //
0037 ////////////////////////////////////////////////////////////////////////
0038 //
0039
0040 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0041 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0042
0043 #include "PrimaryGeneratorAction.hh"
0044
0045 #include "DetectorConstruction.hh"
0046 #include "HistoManager.hh"
0047
0048 #include "G4Electron.hh"
0049 #include "G4Event.hh"
0050 #include "G4ParticleTable.hh"
0051 #include "G4SystemOfUnits.hh"
0052
0053 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0054
0055 PrimaryGeneratorAction::PrimaryGeneratorAction(DetectorConstruction* det)
0056   : G4VUserPrimaryGeneratorAction(), fParticleGun(0), fDetector(det)
0057 {
0058   fParticleGun = new G4ParticleGun(1);
0059   fParticleGun->SetParticleDefinition(G4Electron::Electron());
0060   fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0., 0., 1.));
0061   fParticleGun->SetParticleEnergy(1. * GeV);
0062 }
0063
0064 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0065
0066 PrimaryGeneratorAction::~PrimaryGeneratorAction()
0067 {
0068   delete fParticleGun;
0069 }
0070
0071 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0072
0073 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0074 {
0075   if (anEvent->GetEventID() == 0) {
0076     G4double zVertex = -(fDetector->GetWorldSizeZ());
0077     fParticleGun->SetParticlePosition(G4ThreeVector(0., 0., zVertex));
0078     (HistoManager::GetPointer())->SetBeamEnergy(fParticleGun->GetParticleEnergy());
0079     G4cout << "### PrimaryGeneratorAction::GeneratePrimaries ##########" << G4endl;
0080     G4cout << "### " << fParticleGun->GetParticleDefinition()->GetParticleName()
0081            << "  E(MeV)= " << fParticleGun->GetParticleEnergy() / MeV << G4endl;
0082     G4cout << "########################################################" << G4endl;
0083   }
0084   fParticleGun->GeneratePrimaryVertex(anEvent);
0085 }
0086
0087 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......