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26 /// \file medical/fanoCavity/src/PrimaryGenera << 26 // $Id: PrimaryGeneratorAction.cc,v 1.1 2007/01/19 17:20:27 maire Exp $
27 /// \brief Implementation of the PrimaryGenera << 27 // GEANT4 tag $Name: geant4-09-02-patch-04 $
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 "G4ParticleGun.hh" 38 #include "G4ParticleGun.hh"
41 #include "G4ParticleTable.hh" 39 #include "G4ParticleTable.hh"
42 #include "G4PhysicalConstants.hh" << 40 #include "G4ParticleDefinition.hh"
43 #include "G4SystemOfUnits.hh" <<
44 #include "Randomize.hh" 41 #include "Randomize.hh"
45 42
46 //....oooOO0OOooo........oooOO0OOooo........oo 43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
47 44
48 PrimaryGeneratorAction::PrimaryGeneratorAction 45 PrimaryGeneratorAction::PrimaryGeneratorAction(DetectorConstruction* det)
49 : fParticleGun(0), fDetector(det), fGunMesse << 46 :detector(det)
50 { 47 {
51 fParticleGun = new G4ParticleGun(1); << 48 particleGun = new G4ParticleGun(1);
52 G4ParticleDefinition* particle = G4ParticleT << 49 G4ParticleDefinition* particle
53 fParticleGun->SetParticleDefinition(particle << 50 = G4ParticleTable::GetParticleTable()->FindParticle("gamma");
54 fParticleGun->SetParticleEnergy(1.25 * MeV); << 51 particleGun->SetParticleDefinition(particle);
55 fParticleGun->SetParticleMomentumDirection(G << 52 particleGun->SetParticleEnergy(1.25*MeV);
56 << 53 particleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.));
57 fRBeam = 1.; << 54
58 << 55 rBeam = 1.;
59 // create a messenger for this class << 56
60 fGunMessenger = new PrimaryGeneratorMessenge << 57 //create a messenger for this class
>> 58 gunMessenger = new PrimaryGeneratorMessenger(this);
61 } 59 }
62 60
63 //....oooOO0OOooo........oooOO0OOooo........oo 61 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64 62
65 PrimaryGeneratorAction::~PrimaryGeneratorActio 63 PrimaryGeneratorAction::~PrimaryGeneratorAction()
66 { 64 {
67 delete fParticleGun; << 65 delete particleGun;
68 delete fGunMessenger; << 66 delete gunMessenger;
69 } 67 }
70 68
71 //....oooOO0OOooo........oooOO0OOooo........oo 69 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
72 70
73 void PrimaryGeneratorAction::GeneratePrimaries 71 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
74 { 72 {
75 // this function is called at the begining o << 73 //this function is called at the begining of event
76 // 74 //
77 G4double z0 = -0.5 * (fDetector->GetTotalThi << 75 G4double z0 = -0.5*(detector->GetTotalThickness());
78 G4double x0 = 0. * cm, y0 = 0. * cm; << 76 G4double x0 = 0.*cm, y0 = 0.*cm;
79 << 77
80 // beam width << 78 //beam width
81 // 79 //
82 if (fRBeam > 0.) { << 80 if (rBeam > 0.)
83 G4double beam = fRBeam * (fDetector->GetWa << 81 {
84 G4double r = beam * std::sqrt(G4UniformRan << 82 G4double beam = rBeam*(detector->GetWallRadius());
85 G4double theta = twopi * G4UniformRand(); << 83 G4double r = beam*std::sqrt(G4UniformRand());
86 x0 = r * std::cos(theta); << 84 G4double theta = twopi*G4UniformRand();
87 y0 = r * std::sin(theta); << 85 x0 = r*std::cos(theta);
88 } << 86 y0 = r*std::sin(theta);
89 fParticleGun->SetParticlePosition(G4ThreeVec << 87 }
90 fParticleGun->GeneratePrimaryVertex(anEvent) << 88 particleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
>> 89 particleGun->GeneratePrimaryVertex(anEvent);
91 } 90 }
92 91
93 //....oooOO0OOooo........oooOO0OOooo........oo 92 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 93
94 94