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25 // 25 //
26 /// \file medical/fanoCavity/src/PrimaryGenera 26 /// \file medical/fanoCavity/src/PrimaryGeneratorAction.cc
27 /// \brief Implementation of the PrimaryGenera 27 /// \brief Implementation of the PrimaryGeneratorAction class
28 // 28 //
29 // 29 //
30 //....oooOO0OOooo........oooOO0OOooo........oo 30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oo 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 32
33 #include "PrimaryGeneratorAction.hh" 33 #include "PrimaryGeneratorAction.hh"
34 34
35 #include "DetectorConstruction.hh" 35 #include "DetectorConstruction.hh"
36 #include "PrimaryGeneratorMessenger.hh" 36 #include "PrimaryGeneratorMessenger.hh"
37 37
38 #include "G4Event.hh" 38 #include "G4Event.hh"
39 #include "G4ParticleDefinition.hh" <<
40 #include "G4ParticleGun.hh" 39 #include "G4ParticleGun.hh"
41 #include "G4ParticleTable.hh" 40 #include "G4ParticleTable.hh"
>> 41 #include "G4ParticleDefinition.hh"
42 #include "G4PhysicalConstants.hh" 42 #include "G4PhysicalConstants.hh"
43 #include "G4SystemOfUnits.hh" 43 #include "G4SystemOfUnits.hh"
44 #include "Randomize.hh" 44 #include "Randomize.hh"
45 45
46 //....oooOO0OOooo........oooOO0OOooo........oo 46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
47 47
48 PrimaryGeneratorAction::PrimaryGeneratorAction 48 PrimaryGeneratorAction::PrimaryGeneratorAction(DetectorConstruction* det)
49 : fParticleGun(0), fDetector(det), fGunMesse << 49 :fParticleGun(0), fDetector(det), fGunMessenger(0)
50 { 50 {
51 fParticleGun = new G4ParticleGun(1); << 51 fParticleGun = new G4ParticleGun(1);
52 G4ParticleDefinition* particle = G4ParticleT << 52 G4ParticleDefinition* particle
>> 53 = G4ParticleTable::GetParticleTable()->FindParticle("gamma");
53 fParticleGun->SetParticleDefinition(particle 54 fParticleGun->SetParticleDefinition(particle);
54 fParticleGun->SetParticleEnergy(1.25 * MeV); << 55 fParticleGun->SetParticleEnergy(1.25*MeV);
55 fParticleGun->SetParticleMomentumDirection(G << 56 fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.));
56 << 57
57 fRBeam = 1.; << 58 fRBeam = 1.;
58 << 59
59 // create a messenger for this class << 60 //create a messenger for this class
60 fGunMessenger = new PrimaryGeneratorMessenge << 61 fGunMessenger = new PrimaryGeneratorMessenger(this);
61 } 62 }
62 63
63 //....oooOO0OOooo........oooOO0OOooo........oo 64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64 65
65 PrimaryGeneratorAction::~PrimaryGeneratorActio 66 PrimaryGeneratorAction::~PrimaryGeneratorAction()
66 { 67 {
67 delete fParticleGun; 68 delete fParticleGun;
68 delete fGunMessenger; << 69 delete fGunMessenger;
69 } 70 }
70 71
71 //....oooOO0OOooo........oooOO0OOooo........oo 72 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
72 73
73 void PrimaryGeneratorAction::GeneratePrimaries 74 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
74 { 75 {
75 // this function is called at the begining o << 76 //this function is called at the begining of event
76 // 77 //
77 G4double z0 = -0.5 * (fDetector->GetTotalThi << 78 G4double z0 = -0.5*(fDetector->GetTotalThickness());
78 G4double x0 = 0. * cm, y0 = 0. * cm; << 79 G4double x0 = 0.*cm, y0 = 0.*cm;
79 << 80
80 // beam width << 81 //beam width
81 // 82 //
82 if (fRBeam > 0.) { << 83 if (fRBeam > 0.)
83 G4double beam = fRBeam * (fDetector->GetWa << 84 {
84 G4double r = beam * std::sqrt(G4UniformRan << 85 G4double beam = fRBeam*(fDetector->GetWallRadius());
85 G4double theta = twopi * G4UniformRand(); << 86 G4double r = beam*std::sqrt(G4UniformRand());
86 x0 = r * std::cos(theta); << 87 G4double theta = twopi*G4UniformRand();
87 y0 = r * std::sin(theta); << 88 x0 = r*std::cos(theta);
88 } << 89 y0 = r*std::sin(theta);
89 fParticleGun->SetParticlePosition(G4ThreeVec << 90 }
>> 91 fParticleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
90 fParticleGun->GeneratePrimaryVertex(anEvent) 92 fParticleGun->GeneratePrimaryVertex(anEvent);
91 } 93 }
92 94
93 //....oooOO0OOooo........oooOO0OOooo........oo 95 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 96
94 97