Gabriele Cosmo
97 lines
3.8 KiB
C++
97 lines
3.8 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: ExN03PrimaryGeneratorAction.cc,v 1.2 2002/06/03 09:59:37 radoone Exp $
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// GEANT4 tag $Name: geant4-05-01 $
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//
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "ExN03PrimaryGeneratorAction.hh"
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#include "ExN03DetectorConstruction.hh"
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#include "ExN03PrimaryGeneratorMessenger.hh"
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#include "G4Event.hh"
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#include "G4ParticleGun.hh"
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#include "G4ParticleTable.hh"
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#include "G4ParticleDefinition.hh"
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#include "Randomize.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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ExN03PrimaryGeneratorAction::ExN03PrimaryGeneratorAction(
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ExN03DetectorConstruction* ExN03DC)
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:ExN03Detector(ExN03DC),rndmFlag("off")
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{
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G4int n_particle = 1;
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particleGun = new G4ParticleGun(n_particle);
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//create a messenger for this class
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gunMessenger = new ExN03PrimaryGeneratorMessenger(this);
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// default particle kinematic
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G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
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G4String particleName;
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G4ParticleDefinition* particle
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= particleTable->FindParticle(particleName="e-");
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particleGun->SetParticleDefinition(particle);
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particleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
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particleGun->SetParticleEnergy(50.*MeV);
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// We can't call it here as the WorldSizeX is not yet read from GDML input
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//G4double position = -0.5*(ExN03Detector->GetWorldSizeX());
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//particleGun->SetParticlePosition(G4ThreeVector(position,0.*cm,0.*cm));
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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ExN03PrimaryGeneratorAction::~ExN03PrimaryGeneratorAction()
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{
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delete particleGun;
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delete gunMessenger;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void ExN03PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
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{
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//this function is called at the begining of event
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//
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G4double x0 = -0.5*(ExN03Detector->GetWorldSizeX());
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G4double y0 = 0.*cm, z0 = 0.*cm;
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if (rndmFlag == "on")
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{y0 = (ExN03Detector->GetCalorSizeYZ())*(G4UniformRand()-0.5);
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z0 = (ExN03Detector->GetCalorSizeYZ())*(G4UniformRand()-0.5);
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}
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particleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
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particleGun->GeneratePrimaryVertex(anEvent);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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