DicomPrimaryGeneratorAction.cc

이 파일의 문서화 페이지로 가기

//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
// * LICENSE and available at  http://cern.ch/geant4/license .  These *
// * include a list of copyright holders.                             *
// *                                                                  *
// * 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.  Please see the license in the file  LICENSE  and URL above *
// * for the full disclaimer and the limitation of liability.         *
// *                                                                  *
// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
// * By using,  copying,  modifying or  distributing the software (or *
// * any work based  on the software)  you  agree  to acknowledge its *
// * use  in  resulting  scientific  publications,  and indicate your *
// * acceptance of all terms of the Geant4 Software license.          *
// ********************************************************************
//
// $Id: DicomPrimaryGeneratorAction.cc 101109 2016-11-07 08:14:53Z gcosmo $
//
//
// The code was written by :
//      *Louis Archambault louis.archambault@phy.ulaval.ca,
//      *Luc Beaulieu beaulieu@phy.ulaval.ca
//      +Vincent Hubert-Tremblay at tigre.2@sympatico.ca
//
//
// *Centre Hospitalier Universitaire de Quebec (CHUQ),
// Hotel-Dieu de Quebec, departement de Radio-oncologie
// 11 cote du palais. Quebec, QC, Canada, G1R 2J6
// tel (418) 525-4444 #6720
// fax (418) 691 5268
//
// + Universit� Laval, Qu�bec (QC) Canada
//*******************************************************
#include "DicomPrimaryGeneratorAction.hh"

#include "G4Event.hh"
#include "G4ParticleGun.hh"
#include "G4ParticleTable.hh"
#include "DicomRegularDetectorConstruction.hh"
#include "G4ParticleDefinition.hh"
#include "G4SystemOfUnits.hh"
#include "Randomize.hh"
#include "CLHEP/Random/RandFlat.h"

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
DicomPrimaryGeneratorAction::DicomPrimaryGeneratorAction()
 : G4VUserPrimaryGeneratorAction(),
   fParticleGun(0)
{
  G4int nParticle = 1;
  fParticleGun  = new G4ParticleGun(nParticle);               
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
DicomPrimaryGeneratorAction::~DicomPrimaryGeneratorAction()
{
  delete fParticleGun;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void DicomPrimaryGeneratorAction::GeneratePrimaries(G4Event *anEvent)
{
  G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
  G4String particleName;
  G4ParticleDefinition* particle
    = particleTable->FindParticle(particleName="e-");
  fParticleGun->SetParticleDefinition(particle);
  // put the e- in the x direction of the patient (z in the accelerator axs) 
  // to hit patient in the central slice of the phantom
  G4ThreeVector dir(0,0,1);
  //G4ThreeVector dir(2.*CLHEP::RandFlat::shoot()-1.,
  //2.*CLHEP::RandFlat::shoot()-1.,-CLHEP::RandFlat::shoot());
  dir /= dir.mag();
  fParticleGun->SetParticleMomentumDirection(dir);       
  fParticleGun->SetParticleEnergy(100.*MeV);
  //put it at SAD = 1 m on xy plane of central slice
  fParticleGun->SetParticlePosition(G4ThreeVector(0.,0.,-120.));
  //fParticleGun->SetParticlePosition(G4ThreeVector(0.,0.,-22.));
  fParticleGun->GeneratePrimaryVertex(anEvent);
}