G03PrimaryGeneratorAction.cc

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/// \file persistency/gdml/G03/src/G03PrimaryGeneratorAction.cc
/// \brief Implementation of the G03PrimaryGeneratorAction class
//
//
// $Id: G03PrimaryGeneratorAction.cc 68025 2013-03-13 13:43:46Z gcosmo $
//
// Class G03PrimaryGeneratorAction implementation
//
// ----------------------------------------------------------------------------

#include "G03PrimaryGeneratorAction.hh"

#include "globals.hh"
#include "G4ParticleDefinition.hh"
#include "G4SystemOfUnits.hh"

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G03PrimaryGeneratorAction::G03PrimaryGeneratorAction()
 : G4VUserPrimaryGeneratorAction(), 
   fParticleGun(0), 
   fParticleTable(0)
{
  // Particle gun and particle table 
  //
  fParticleGun = new G4ParticleGun();
  fParticleTable = G4ParticleTable::GetParticleTable();

  // Default particle
  //
  fParticleGun->SetParticleDefinition(fParticleTable->FindParticle("geantino"));
  fParticleGun->SetParticleEnergy( 1.0*MeV );

  G4ThreeVector err1=G4ThreeVector(-1260,-560,40); // outside
  G4ThreeVector err2=G4ThreeVector(100,-240,120);  // inside
  G4ThreeVector err2v=(err2-err1).unit();
  
  fParticleGun->SetParticleMomentumDirection(err2v);
  fParticleGun->SetParticlePosition(err1);

}

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G03PrimaryGeneratorAction::~G03PrimaryGeneratorAction()
{
  delete fParticleGun;
}

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void G03PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
{
  fParticleGun->GeneratePrimaryVertex(anEvent);
}