00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // 00027 // $Id$ 00028 // 00029 00030 #include "G4RayShooter.hh" 00031 #include "G4SystemOfUnits.hh" 00032 #include "G4PrimaryParticle.hh" 00033 #include "G4Event.hh" 00034 #include "G4ParticleTable.hh" 00035 #include "G4ParticleDefinition.hh" 00036 #include "globals.hh" 00037 00038 00039 G4RayShooter::G4RayShooter() 00040 { 00041 SetInitialValues(); 00042 } 00043 00044 void G4RayShooter::SetInitialValues() 00045 { 00046 particle_definition = 0; 00047 G4ThreeVector zero; 00048 particle_momentum_direction = (G4ParticleMomentum)zero; 00049 particle_energy = 1.0*GeV; 00050 particle_position = zero; 00051 particle_time = 0.0; 00052 particle_polarization = zero; 00053 } 00054 00055 G4RayShooter::~G4RayShooter() 00056 { 00057 } 00058 00059 void G4RayShooter::Shoot(G4Event* evt,G4ThreeVector vtx,G4ThreeVector direc) 00060 { 00061 if(!particle_definition) 00062 { 00063 G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); 00064 G4String particleName; 00065 particle_definition = particleTable->FindParticle(particleName="geantino"); 00066 if(!particle_definition) 00067 { 00068 G4String msg; 00069 msg = " G4RayTracer uses geantino to trace the ray, but your physics list does not\n"; 00070 msg += "define G4Geantino. Please add G4Geantino in your physics list."; 00071 G4Exception("G4RayShooter::Shoot","RayTracer001",FatalException,msg); 00072 } 00073 } 00074 00075 // create a new vertex 00076 G4PrimaryVertex* vertex = new G4PrimaryVertex(vtx,particle_time); 00077 00078 // create new primaries and set them to the vertex 00079 G4double mass = particle_definition->GetPDGMass(); 00080 G4PrimaryParticle* particle = 00081 new G4PrimaryParticle(particle_definition); 00082 particle->SetKineticEnergy( particle_energy ); 00083 particle->SetMass( mass ); 00084 particle->SetMomentumDirection( direc ); 00085 particle->SetPolarization(particle_polarization.x(), 00086 particle_polarization.y(), 00087 particle_polarization.z()); 00088 vertex->SetPrimary( particle ); 00089 00090 evt->AddPrimaryVertex( vertex ); 00091 } 00092 00093