microyz/src/PrimaryGeneratorAction.cc

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 /// \file PrimaryGeneratorAction.cc
0027 /// \brief Implementation of the PrimaryGeneratorAction class
0028
0029 // This example is provided by the Geant4-DNA collaboration
0030 // Any report or published results obtained using the Geant4-DNA software
0031 // shall cite the following Geant4-DNA collaboration publications:
0032 // Med. Phys. 45 (2018) e722-e739
0033 // Phys. Med. 31 (2015) 861-874
0034 // Med. Phys. 37 (2010) 4692-4708
0035 // Int. J. Model. Simul. Sci. Comput. 1 (2010) 157–178
0036 // The Geant4-DNA web site is available at http://geant4-dna.org
0037 //
0038
0039 #include "PrimaryGeneratorAction.hh"
0040
0041 #include "G4ParticleGun.hh"
0042 #include "G4ParticleTable.hh"
0043 #include "G4RandomDirection.hh"
0044 #include "G4SystemOfUnits.hh"
0045
0046 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0047
0048 PrimaryGeneratorAction::PrimaryGeneratorAction() : G4VUserPrimaryGeneratorAction()
0049 {
0050   G4int nofParticles = 1;
0051   fParticleGun = std::make_unique<G4ParticleGun>(nofParticles);
0052
0053   G4ParticleDefinition* particleDefinition =
0054     G4ParticleTable::GetParticleTable()->FindParticle("e-");
0055
0056   fParticleGun->SetParticleDefinition(particleDefinition);
0057   fParticleGun->SetParticleMomentumDirection(G4RandomDirection());
0058   fParticleGun->SetParticleEnergy(1 * keV);
0059 }
0060
0061 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0062
0063 PrimaryGeneratorAction::~PrimaryGeneratorAction() = default;
0064
0065 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0066
0067 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0068 {
0069   fParticleGun->SetParticlePosition(G4ThreeVector(0., 0., 0.));
0070
0071   fParticleGun->SetParticleMomentumDirection(G4RandomDirection());
0072
0073   fParticleGun->GeneratePrimaryVertex(anEvent);
0074 }
0075
0076 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......