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geant4/environments/g4py/examples/demos/TestEm0/module/PrimaryGeneratorAction.cc
T
2018-12-07 15:15:39 +01:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
//
//
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#include "PrimaryGeneratorAction.hh"
#include "DetectorConstruction.hh"
#include "G4Event.hh"
#include "G4ParticleTable.hh"
#include "G4ParticleDefinition.hh"
#include "G4SystemOfUnits.hh"
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PrimaryGeneratorAction::PrimaryGeneratorAction( DetectorConstruction* DC)
:Detector(DC)
{
particleGun = new G4ParticleGun(1);
SetDefaultKinematic();
}
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PrimaryGeneratorAction::~PrimaryGeneratorAction()
{
delete particleGun;
}
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void PrimaryGeneratorAction::SetDefaultKinematic()
{
G4ParticleDefinition* particle
= G4ParticleTable::GetParticleTable()->FindParticle("e-");
particleGun->SetParticleDefinition(particle);
particleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
particleGun->SetParticleEnergy(100*MeV);
G4double position = -0.5*(Detector->GetSize());
particleGun->SetParticlePosition(G4ThreeVector(position,0.*cm,0.*cm));
}
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void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
{
//this function is called at the begining of event
//
particleGun->GeneratePrimaryVertex(anEvent);
}
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