Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/examples/extended/medical/dna/icsd/src/PrimaryGeneratorAction.cc

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  1 //
  2 // ********************************************************************
  3 // * License and Disclaimer                                           *
  4 // *                                                                  *
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  9 // * include a list of copyright holders.                             *
 10 // *                                                                  *
 11 // * Neither the authors of this software system, nor their employing *
 12 // * institutes,nor the agencies providing financial support for this *
 13 // * work  make  any representation or  warranty, express or implied, *
 14 // * regarding  this  software system or assume any liability for its *
 15 // * use.  Please see the license in the file  LICENSE  and URL above *
 16 // * for the full disclaimer and the limitation of liability.         *
 17 // *                                                                  *
 18 // * This  code  implementation is the result of  the  scientific and *
 19 // * technical work of the GEANT4 collaboration.                      *
 20 // * By using,  copying,  modifying or  distributing the software (or *
 21 // * any work based  on the software)  you  agree  to acknowledge its *
 22 // * use  in  resulting  scientific  publications,  and indicate your *
 23 // * acceptance of all terms of the Geant4 Software license.          *
 24 // ********************************************************************
 25 //
 26 // This example is provided by the Geant4-DNA collaboration
 27 // Any report or published results obtained using the Geant4-DNA software
 28 // shall cite the following Geant4-DNA collaboration publication:
 29 // Med. Phys. 37 (2010) 4692-4708
 30 // J. Comput. Phys. 274 (2014) 841-882
 31 // The Geant4-DNA web site is available at http://geant4-dna.org
 32 //
 33 //
 34 /// \file PrimaryGeneratorAction.cc
 35 /// \brief Implementation of the PrimaryGeneratorAction class
 36 
 37 #include "PrimaryGeneratorAction.hh"
 38 
 39 #include "G4LogicalVolumeStore.hh"
 40 #include "G4SystemOfUnits.hh"
 41 #include "G4Tubs.hh"
 42 
 43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
 44 
 45 PrimaryGeneratorAction::PrimaryGeneratorAction() : G4VUserPrimaryGeneratorAction()
 46 {
 47   G4int n_particle = 1;
 48   fpParticleGun = new G4ParticleGun(n_particle);
 49 
 50   // default gun parameters
 51   fpParticleGun->SetParticleEnergy(500. * eV);
 52   fpParticleGun->SetParticleMomentumDirection(G4ThreeVector(1., 0., 0.));
 53   fpParticleGun->SetParticlePosition(G4ThreeVector(-1.15 * nanometer, 0., 0));
 54 }
 55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
 56 
 57 PrimaryGeneratorAction::~PrimaryGeneratorAction()
 58 {
 59   delete fpParticleGun;
 60 }
 61 
 62 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
 63 
 64 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
 65 {
 66   G4Tubs* targetSolid =
 67     dynamic_cast<G4Tubs*>(G4LogicalVolumeStore::GetInstance()->GetVolume("Target")->GetSolid());
 68 
 69   if (targetSolid != nullptr) {
 70     G4double radius = targetSolid->GetOuterRadius();
 71     fpParticleGun->SetParticlePosition(G4ThreeVector(-radius, 0., 0));
 72   }
 73 
 74   fpParticleGun->GeneratePrimaryVertex(anEvent);
 75 }
 76