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26 /// \file electromagnetic/TestEm5/src/PrimaryG 26 /// \file electromagnetic/TestEm5/src/PrimaryGeneratorAction.cc
27 /// \brief Implementation of the PrimaryGenera 27 /// \brief Implementation of the PrimaryGeneratorAction class
28 // 28 //
>> 29 // $Id$
29 // 30 //
30 //....oooOO0OOooo........oooOO0OOooo........oo 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oo 32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 33
33 #include "PrimaryGeneratorAction.hh" 34 #include "PrimaryGeneratorAction.hh"
34 35
35 #include "DetectorConstruction.hh" 36 #include "DetectorConstruction.hh"
36 #include "PrimaryGeneratorMessenger.hh" 37 #include "PrimaryGeneratorMessenger.hh"
37 38
38 #include "G4Event.hh" 39 #include "G4Event.hh"
39 #include "G4ParticleDefinition.hh" <<
40 #include "G4ParticleTable.hh" 40 #include "G4ParticleTable.hh"
>> 41 #include "G4ParticleDefinition.hh"
41 #include "G4SystemOfUnits.hh" 42 #include "G4SystemOfUnits.hh"
42 #include "Randomize.hh" 43 #include "Randomize.hh"
43 44
44 //....oooOO0OOooo........oooOO0OOooo........oo 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
45 46
46 PrimaryGeneratorAction::PrimaryGeneratorAction << 47 PrimaryGeneratorAction::PrimaryGeneratorAction(
>> 48 DetectorConstruction* DC)
>> 49 :fDetector(DC)
47 { 50 {
48 G4int n_particle = 1; 51 G4int n_particle = 1;
49 fParticleGun = new G4ParticleGun(n_particle) << 52 fParticleGun = new G4ParticleGun(n_particle);
50 SetDefaultKinematic(); 53 SetDefaultKinematic();
51 << 54 fRndmBeam = 0.;
52 // create a messenger for this class << 55
>> 56 //create a messenger for this class
53 fGunMessenger = new PrimaryGeneratorMessenge 57 fGunMessenger = new PrimaryGeneratorMessenger(this);
54 } 58 }
55 59
56 //....oooOO0OOooo........oooOO0OOooo........oo 60 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
57 61
58 PrimaryGeneratorAction::~PrimaryGeneratorActio 62 PrimaryGeneratorAction::~PrimaryGeneratorAction()
59 { 63 {
60 delete fParticleGun; 64 delete fParticleGun;
61 delete fGunMessenger; << 65 delete fGunMessenger;
62 } 66 }
63 << 67
64 //....oooOO0OOooo........oooOO0OOooo........oo 68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
65 69
66 void PrimaryGeneratorAction::SetDefaultKinemat 70 void PrimaryGeneratorAction::SetDefaultKinematic()
67 { << 71 {
68 // default particle kinematic 72 // default particle kinematic
69 // 73 //
70 G4ParticleTable* particleTable = G4ParticleT 74 G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
71 G4ParticleDefinition* particle = particleTab << 75 G4ParticleDefinition* particle
>> 76 = particleTable->FindParticle("e-");
72 fParticleGun->SetParticleDefinition(particle 77 fParticleGun->SetParticleDefinition(particle);
73 fParticleGun->SetParticleMomentumDirection(G << 78 fParticleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
74 fParticleGun->SetParticleEnergy(30. * MeV); << 79 fParticleGun->SetParticleEnergy(30.*MeV);
75 G4double x0 = -0.4999 * (fDetector->GetWorld << 80 G4double x0 = -0.5*(fDetector->GetWorldSizeX());
76 fParticleGun->SetParticlePosition(G4ThreeVec << 81 fParticleGun->SetParticlePosition(G4ThreeVector(x0, 0*cm, 0*cm));
77 } 82 }
78 83
79 //....oooOO0OOooo........oooOO0OOooo........oo 84 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
80 85
81 void PrimaryGeneratorAction::GeneratePrimaries 86 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
82 { 87 {
83 // this function is called at the begining o << 88 //this function is called at the begining of event
84 // 89 //
85 // randomize the beam, if requested. << 90 //randomize the beam, if requested.
86 if (fRndmBeam > 0.) { << 91 if (fRndmBeam > 0.)
87 G4ThreeVector oldPosition = fParticleGun-> << 92 {
88 G4double rbeam = 0.5 * (fDetector->GetAbso << 93 G4ThreeVector oldPosition = fParticleGun->GetParticlePosition();
89 G4double x0 = oldPosition.x(); << 94 G4double rbeam = 0.5*(fDetector->GetAbsorberSizeYZ())*fRndmBeam;
90 G4double y0 = (2 * G4UniformRand() - 1.) * << 95 G4double x0 = oldPosition.x();
91 G4double z0 = (2 * G4UniformRand() - 1.) * << 96 G4double y0 = oldPosition.y() + (2*G4UniformRand()-1.)*rbeam;
92 fParticleGun->SetParticlePosition(G4ThreeV << 97 G4double z0 = oldPosition.z() + (2*G4UniformRand()-1.)*rbeam;
93 fParticleGun->GeneratePrimaryVertex(anEven << 98 fParticleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
94 fParticleGun->SetParticlePosition(oldPosit << 99 fParticleGun->GeneratePrimaryVertex(anEvent);
95 } << 100 fParticleGun->SetParticlePosition(oldPosition);
96 else << 101 }
97 fParticleGun->GeneratePrimaryVertex(anEven << 102 else fParticleGun->GeneratePrimaryVertex(anEvent);
98 } 103 }
99 104
100 //....oooOO0OOooo........oooOO0OOooo........oo 105 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
101 106