Par04PrimaryGeneratorAction.cc

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#include "Par04PrimaryGeneratorAction.hh"
#include <CLHEP/Units/SystemOfUnits.h>       // for GeV
#include <G4String.hh>                       // for G4String
#include <G4ThreeVector.hh>                  // for G4ThreeVector
#include <G4Types.hh>                        // for G4int
#include <G4VUserPrimaryGeneratorAction.hh>  // for G4VUserPrimaryGeneratorA...
#include <string>                            // for basic_string
#include "G4Event.hh"                        // for G4Event
#include "G4ParticleGun.hh"                  // for G4ParticleGun
#include "G4ParticleTable.hh"                // for G4ParticleTable
#include "G4SystemOfUnits.hh"                // for GeV
#include "Par04EventInformation.hh"          // for Par04EventInformation
class G4ParticleDefinition;
 
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Par04PrimaryGeneratorAction::Par04PrimaryGeneratorAction()
  : G4VUserPrimaryGeneratorAction()
{
  G4int n_particle = 1;
  fParticleGun     = new G4ParticleGun(n_particle);
  // Default particle properties
  G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
  G4String particleName;
  G4ParticleDefinition* particle = particleTable->FindParticle(particleName = "e-");
  fParticleGun->SetParticleDefinition(particle);
  fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0., 1., 0.));
  fParticleGun->SetParticleEnergy(10. * GeV);
  fParticleGun->SetParticlePosition(G4ThreeVector(0., 0., 0.));
}
 
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Par04PrimaryGeneratorAction::~Par04PrimaryGeneratorAction() { delete fParticleGun; }
 
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void Par04PrimaryGeneratorAction::GeneratePrimaries(G4Event* aEvent)
{
  fParticleGun->GeneratePrimaryVertex(aEvent);
  aEvent->SetUserInformation(new Par04EventInformation());
}