PrimaryGeneratorAction.cc

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/// \file radiobiology/src/PrimaryGeneratorAction.cc
/// \brief Implementation of the RadioBio::PrimaryGeneratorAction class
 
#include "PrimaryGeneratorAction.hh"
 
#include "G4Event.hh"
#include "G4ParticleDefinition.hh"
#include "G4ParticleTable.hh"
#include "G4SystemOfUnits.hh"
 
#include "DetectorConstruction.hh"
 
namespace RadioBio
{
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
PrimaryGeneratorAction::PrimaryGeneratorAction(DetectorConstruction* det)
  : G4VUserPrimaryGeneratorAction(), fDetector(det)
{
  fGPS = new G4GeneralParticleSource();
 
  G4ParticleDefinition* particle = G4ParticleTable::GetParticleTable()->FindParticle("proton");
  fGPS->SetParticleDefinition(particle);
 
  // Hard code the primary direction along X
  //    and rotate the source
  fGPS->GetCurrentSource()->GetPosDist()->SetPosRot1(G4ThreeVector(0, 0, 1));
  fGPS->GetCurrentSource()->GetPosDist()->SetPosRot2(G4ThreeVector(0, 1, 0));
  fGPS->GetCurrentSource()->GetAngDist()->SetParticleMomentumDirection(G4ThreeVector(1, 0, 0));
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
PrimaryGeneratorAction::~PrimaryGeneratorAction()
{
  delete fGPS;
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
{
  // Hard code position on the side and rotatio on the corrrect axis
  fGPS->GetCurrentSource()->GetPosDist()->SetCentreCoords(
    G4ThreeVector(-fDetector->GetSizeX() / 2., 0., 0.));
 
  fGPS->GeneratePrimaryVertex(anEvent);
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
}  // namespace RadioBio