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26 /// \file electromagnetic/TestEm5/src/PrimaryG << 26 // $Id: PrimaryGeneratorAction.cc,v 1.4 2006-06-29 16:56:09 gunter Exp $
27 /// \brief Implementation of the PrimaryGenera << 27 // GEANT4 tag $Name: geant4-09-04-patch-01 $
28 // <<
29 // 28 //
30 //....oooOO0OOooo........oooOO0OOooo........oo 29 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oo 30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 31
33 #include "PrimaryGeneratorAction.hh" 32 #include "PrimaryGeneratorAction.hh"
34 33
35 #include "DetectorConstruction.hh" 34 #include "DetectorConstruction.hh"
36 #include "PrimaryGeneratorMessenger.hh" 35 #include "PrimaryGeneratorMessenger.hh"
37 36
38 #include "G4Event.hh" 37 #include "G4Event.hh"
39 #include "G4ParticleDefinition.hh" <<
40 #include "G4ParticleTable.hh" 38 #include "G4ParticleTable.hh"
41 #include "G4SystemOfUnits.hh" << 39 #include "G4ParticleDefinition.hh"
42 #include "Randomize.hh" 40 #include "Randomize.hh"
43 41
44 //....oooOO0OOooo........oooOO0OOooo........oo 42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
45 43
46 PrimaryGeneratorAction::PrimaryGeneratorAction << 44 PrimaryGeneratorAction::PrimaryGeneratorAction(
>> 45 DetectorConstruction* DC)
>> 46 :Detector(DC)
47 { 47 {
48 G4int n_particle = 1; 48 G4int n_particle = 1;
49 fParticleGun = new G4ParticleGun(n_particle) << 49 particleGun = new G4ParticleGun(n_particle);
50 SetDefaultKinematic(); 50 SetDefaultKinematic();
51 << 51 rndmBeam = 0.;
52 // create a messenger for this class << 52
53 fGunMessenger = new PrimaryGeneratorMessenge << 53 //create a messenger for this class
>> 54 gunMessenger = new PrimaryGeneratorMessenger(this);
54 } 55 }
55 56
56 //....oooOO0OOooo........oooOO0OOooo........oo 57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
57 58
58 PrimaryGeneratorAction::~PrimaryGeneratorActio 59 PrimaryGeneratorAction::~PrimaryGeneratorAction()
59 { 60 {
60 delete fParticleGun; << 61 delete particleGun;
61 delete fGunMessenger; << 62 delete gunMessenger;
62 } 63 }
63 << 64
64 //....oooOO0OOooo........oooOO0OOooo........oo 65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
65 66
66 void PrimaryGeneratorAction::SetDefaultKinemat 67 void PrimaryGeneratorAction::SetDefaultKinematic()
67 { << 68 {
68 // default particle kinematic 69 // default particle kinematic
69 // 70 //
70 G4ParticleTable* particleTable = G4ParticleT 71 G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
71 G4ParticleDefinition* particle = particleTab << 72 G4ParticleDefinition* particle
72 fParticleGun->SetParticleDefinition(particle << 73 = particleTable->FindParticle("e-");
73 fParticleGun->SetParticleMomentumDirection(G << 74 particleGun->SetParticleDefinition(particle);
74 fParticleGun->SetParticleEnergy(30. * MeV); << 75 particleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
75 G4double x0 = -0.4999 * (fDetector->GetWorld << 76 particleGun->SetParticleEnergy(30.*MeV);
76 fParticleGun->SetParticlePosition(G4ThreeVec << 77 G4double x0 = -0.5*(Detector->GetWorldSizeX());
>> 78 particleGun->SetParticlePosition(G4ThreeVector(x0, 0*cm, 0*cm));
77 } 79 }
78 80
79 //....oooOO0OOooo........oooOO0OOooo........oo 81 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
80 82
81 void PrimaryGeneratorAction::GeneratePrimaries 83 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
82 { 84 {
83 // this function is called at the begining o << 85 //this function is called at the begining of event
84 // 86 //
85 // randomize the beam, if requested. << 87 //randomize the beam, if requested.
86 if (fRndmBeam > 0.) { << 88 if (rndmBeam > 0.)
87 G4ThreeVector oldPosition = fParticleGun-> << 89 {
88 G4double rbeam = 0.5 * (fDetector->GetAbso << 90 G4ThreeVector oldPosition = particleGun->GetParticlePosition();
89 G4double x0 = oldPosition.x(); << 91 G4double rbeam = 0.5*(Detector->GetAbsorberSizeYZ())*rndmBeam;
90 G4double y0 = (2 * G4UniformRand() - 1.) * << 92 G4double x0 = oldPosition.x();
91 G4double z0 = (2 * G4UniformRand() - 1.) * << 93 G4double y0 = oldPosition.y() + (2*G4UniformRand()-1.)*rbeam;
92 fParticleGun->SetParticlePosition(G4ThreeV << 94 G4double z0 = oldPosition.z() + (2*G4UniformRand()-1.)*rbeam;
93 fParticleGun->GeneratePrimaryVertex(anEven << 95 particleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
94 fParticleGun->SetParticlePosition(oldPosit << 96 particleGun->GeneratePrimaryVertex(anEvent);
95 } << 97 particleGun->SetParticlePosition(oldPosition);
96 else << 98 }
97 fParticleGun->GeneratePrimaryVertex(anEven << 99 else particleGun->GeneratePrimaryVertex(anEvent);
98 } 100 }
99 101
100 //....oooOO0OOooo........oooOO0OOooo........oo 102 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
101 103