B01PrimaryGeneratorAction.cc

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// $Id: B01PrimaryGeneratorAction.cc 70237 2013-05-27 11:57:04Z gcosmo $
//

#include "globals.hh"

#include "B01PrimaryGeneratorAction.hh"

#include "G4Event.hh"
#include "G4ParticleGun.hh"
#include "G4Neutron.hh"
#include "G4ThreeVector.hh"
#include "G4SystemOfUnits.hh"


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B01PrimaryGeneratorAction::B01PrimaryGeneratorAction() : 
  G4VUserPrimaryGeneratorAction(), fParticleGun(0)
{
  G4int n_particle = 1;
  fParticleGun = new G4ParticleGun(n_particle);
  fParticleGun->SetParticleDefinition(G4Neutron::NeutronDefinition());
  fParticleGun->SetParticleEnergy(10.0*MeV);
  fParticleGun->SetParticlePosition(G4ThreeVector(0.0, 0.0, -90.0005*cm));
  fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0.0, 0.0, 1.0));
}

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B01PrimaryGeneratorAction::~B01PrimaryGeneratorAction()
{
  delete fParticleGun;
}

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void B01PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
{
  fParticleGun->GeneratePrimaryVertex(anEvent);
}

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