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geant4/examples/extended/electromagnetic/TestEm2/src/Em2PrimaryGeneratorAction.cc
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2016-06-08 16:57:27 +02:00

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//
// ********************************************************************
// * DISCLAIMER *
// * *
// * The following disclaimer summarizes all the specific disclaimers *
// * of contributors to this software. The specific disclaimers,which *
// * govern, are listed with their locations in: *
// * http://cern.ch/geant4/license *
// * *
// * 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. *
// * *
// * This code implementation is the intellectual property of the *
// * GEANT4 collaboration. *
// * By copying, distributing or modifying the Program (or any work *
// * based on the Program) you indicate your acceptance of this *
// * statement, and all its terms. *
// ********************************************************************
//
//
// $Id: Em2PrimaryGeneratorAction.cc,v 1.5 2002/10/31 13:58:32 maire Exp $
// GEANT4 tag $Name: geant4-05-00 $
//
//
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#include "Em2PrimaryGeneratorAction.hh"
#include "Em2DetectorConstruction.hh"
#include "G4Event.hh"
#include "G4ParticleTable.hh"
#include "G4ParticleDefinition.hh"
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Em2PrimaryGeneratorAction::Em2PrimaryGeneratorAction(
Em2DetectorConstruction* det)
:Em2Detector(det)
{
G4int n_particle = 1;
particleGun = new G4ParticleGun(n_particle);
G4ParticleDefinition* particle
= G4ParticleTable::GetParticleTable()->FindParticle("e-");
particleGun->SetParticleDefinition(particle);
particleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.));
particleGun->SetParticleEnergy(5.*GeV);
}
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Em2PrimaryGeneratorAction::~Em2PrimaryGeneratorAction()
{
delete particleGun;
}
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void Em2PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
{
//this function is called at the begin of event
//
G4double position = -0.5*(Em2Detector->GetfullLength());
particleGun->SetParticlePosition(G4ThreeVector(0.*cm,0.*cm,position));
particleGun->GeneratePrimaryVertex(anEvent);
}
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