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25 // 25 //
26 // G4RayShooter class implementation <<
27 // 26 //
28 // Author: Makoto Asai, 2000 << 27 // $Id: G4RayShooter.cc,v 1.2 2006/06/29 18:10:00 gunter Exp $
29 // ------------------------------------------- << 28 // GEANT4 tag $Name: geant4-09-01-patch-02 $
>> 29 //
30 30
31 #include "G4RayShooter.hh" 31 #include "G4RayShooter.hh"
32 #include "G4SystemOfUnits.hh" <<
33 #include "G4PrimaryParticle.hh" 32 #include "G4PrimaryParticle.hh"
34 #include "G4Event.hh" 33 #include "G4Event.hh"
35 #include "G4ParticleTable.hh" 34 #include "G4ParticleTable.hh"
36 #include "G4ParticleDefinition.hh" 35 #include "G4ParticleDefinition.hh"
37 #include "globals.hh" 36 #include "globals.hh"
38 37
39 void G4RayShooter::Shoot(G4Event* evt, G4Three << 38
>> 39 G4RayShooter::G4RayShooter()
>> 40 {
>> 41 SetInitialValues();
>> 42 }
>> 43
>> 44 void G4RayShooter::SetInitialValues()
>> 45 {
>> 46 particle_definition = 0;
>> 47 G4ThreeVector zero;
>> 48 particle_momentum_direction = (G4ParticleMomentum)zero;
>> 49 particle_energy = 1.0*GeV;
>> 50 particle_position = zero;
>> 51 particle_time = 0.0;
>> 52 particle_polarization = zero;
>> 53 }
>> 54
>> 55 G4RayShooter::~G4RayShooter()
>> 56 {
>> 57 }
>> 58
>> 59 void G4RayShooter::Shoot(G4Event* evt,G4ThreeVector vtx,G4ThreeVector direc)
40 { 60 {
41 if(particle_definition == nullptr) << 61 if(!particle_definition)
42 { 62 {
43 G4ParticleTable* particleTable = G4Particl 63 G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
44 G4String particleName; 64 G4String particleName;
45 particle_definition = particleTable->FindP 65 particle_definition = particleTable->FindParticle(particleName="geantino");
46 if(particle_definition == nullptr) << 66 if(!particle_definition)
47 { 67 {
48 G4String msg; 68 G4String msg;
49 msg = "G4RayTracer uses geantino to trac << 69 msg = " G4RayTracer uses geantino to trace the ray, but your physics list does not\n";
50 msg += "define G4Geantino. Please add G4 70 msg += "define G4Geantino. Please add G4Geantino in your physics list.";
51 G4Exception("G4RayShooter::Shoot()", "Ra << 71 G4Exception("G4RayShooter::Shoot","RayTracer001",FatalException,msg);
52 } 72 }
53 } 73 }
54 74
55 // Create a new vertex << 75 // create a new vertex
56 // << 76 G4PrimaryVertex* vertex = new G4PrimaryVertex(vtx,particle_time);
57 auto* vertex = new G4PrimaryVertex(vtx,parti << 77
58 << 78 // create new primaries and set them to the vertex
59 // Create new primaries and set them to the << 79 G4double mass = particle_definition->GetPDGMass();
60 // << 80 G4double energy = particle_energy + mass;
61 G4double mass = particle_definition->GetPDGM << 81 G4double pmom = std::sqrt(energy*energy-mass*mass);
62 auto* particle = new G4PrimaryParticle(parti << 82 G4double px = pmom*direc.x();
63 particle->SetKineticEnergy( particle_energy << 83 G4double py = pmom*direc.y();
>> 84 G4double pz = pmom*direc.z();
>> 85 G4PrimaryParticle* particle =
>> 86 new G4PrimaryParticle(particle_definition,px,py,pz);
64 particle->SetMass( mass ); 87 particle->SetMass( mass );
65 particle->SetMomentumDirection( direc ); <<
66 particle->SetPolarization(particle_polarizat 88 particle->SetPolarization(particle_polarization.x(),
67 particle_polarizat << 89 particle_polarization.y(),
68 particle_polarizat << 90 particle_polarization.z());
69 vertex->SetPrimary( particle ); 91 vertex->SetPrimary( particle );
70 92
71 evt->AddPrimaryVertex( vertex ); 93 evt->AddPrimaryVertex( vertex );
72 } 94 }
>> 95
>> 96
73 97