TestEm8/src/PrimaryGeneratorAction.cc

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0026 /// \file electromagnetic/TestEm8/src/PrimaryGeneratorAction.cc
0027 /// \brief Implementation of the PrimaryGeneratorAction class
0028 //
0029 //
0030 /////////////////////////////////////////////////////////////////////////
0031 //
0032 // TestEm8: Gaseous detector
0033 //
0034 // Created: 31.08.2010 V.Ivanchenko
0035 //
0036 // Modified:
0037 //
0038 ////////////////////////////////////////////////////////////////////////
0039 //
0040
0041 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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0043
0044 #include "PrimaryGeneratorAction.hh"
0045
0046 #include "TestParameters.hh"
0047
0048 #include "G4Electron.hh"
0049 #include "G4Event.hh"
0050 #include "G4SystemOfUnits.hh"
0051
0052 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0053
0054 PrimaryGeneratorAction::PrimaryGeneratorAction()
0055 {
0056   fParticleGun = new G4ParticleGun(1);
0057   fParticleGun->SetParticleDefinition(G4Electron::Electron());
0058   fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0., 0., 1.));
0059   fParticleGun->SetParticleEnergy(1. * GeV);
0060   fParam = TestParameters::GetPointer();
0061 }
0062
0063 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0064
0065 PrimaryGeneratorAction::~PrimaryGeneratorAction()
0066 {
0067   delete fParticleGun;
0068 }
0069
0070 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0071
0072 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0073 {
0074   G4double z = fParam->GetPositionZ();
0075   fParam->SetBeamParticle(fParticleGun->GetParticleDefinition());
0076   fParam->SetBeamEnergy(fParticleGun->GetParticleEnergy());
0077   fParticleGun->SetParticlePosition(G4ThreeVector(0., 0., z));
0078   fParticleGun->GeneratePrimaryVertex(anEvent);
0079 }
0080
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