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25 // 25 //
26 /// \file PrimaryGeneratorAction.cc 26 /// \file 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 "G4Event.hh" 35 #include "G4Event.hh"
36 #include "G4ParticleDefinition.hh" <<
37 #include "G4ParticleTable.hh" 36 #include "G4ParticleTable.hh"
>> 37 #include "G4ParticleDefinition.hh"
38 #include "G4PhysicalConstants.hh" 38 #include "G4PhysicalConstants.hh"
39 #include "G4SystemOfUnits.hh" 39 #include "G4SystemOfUnits.hh"
40 #include "Randomize.hh" 40 #include "Randomize.hh"
41 41
42 //....oooOO0OOooo........oooOO0OOooo........oo 42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
43 43
44 PrimaryGeneratorAction::PrimaryGeneratorAction 44 PrimaryGeneratorAction::PrimaryGeneratorAction()
45 { 45 {
46 G4int n_particle = 1; 46 G4int n_particle = 1;
47 fParticleGun = new G4ParticleGun(n_particle) << 47 fParticleGun = new G4ParticleGun(n_particle);
48 << 48
49 // default particle kinematic 49 // default particle kinematic
50 50
51 G4ParticleDefinition* particle = G4ParticleT << 51 G4ParticleDefinition* particle
>> 52 = G4ParticleTable::GetParticleTable()->FindParticle("neutron");
52 fParticleGun->SetParticleDefinition(particle 53 fParticleGun->SetParticleDefinition(particle);
53 fParticleGun->SetParticleMomentumDirection(G << 54 fParticleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
54 fParticleGun->SetParticleEnergy(14 * MeV); << 55 fParticleGun->SetParticleEnergy(14*MeV);
55 fParticleGun->SetParticlePosition(G4ThreeVec << 56 fParticleGun->SetParticlePosition(G4ThreeVector(0.*cm,0.*cm,0.*cm));
56 } 57 }
57 58
58 //....oooOO0OOooo........oooOO0OOooo........oo 59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
59 60
60 PrimaryGeneratorAction::~PrimaryGeneratorActio 61 PrimaryGeneratorAction::~PrimaryGeneratorAction()
61 { 62 {
62 delete fParticleGun; 63 delete fParticleGun;
63 } 64 }
64 65
65 //....oooOO0OOooo........oooOO0OOooo........oo 66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
66 67
67 void PrimaryGeneratorAction::GeneratePrimaries 68 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
68 { 69 {
69 // this function is called at the begining o << 70 //this function is called at the begining of event
70 // 71 //
71 // distribution uniform in solid angle << 72 //distribution uniform in solid angle
72 // 73 //
73 G4double cosTheta = 2 * G4UniformRand() - 1. << 74 G4double cosTheta = 2*G4UniformRand() - 1., phi = twopi*G4UniformRand();
74 G4double sinTheta = std::sqrt(1. - cosTheta << 75 G4double sinTheta = std::sqrt(1. - cosTheta*cosTheta);
75 G4double ux = sinTheta * std::cos(phi), uy = << 76 G4double ux = sinTheta*std::cos(phi),
76 << 77 uy = sinTheta*std::sin(phi),
77 fParticleGun->SetParticleMomentumDirection(G << 78 uz = cosTheta;
78 79
>> 80 fParticleGun->SetParticleMomentumDirection(G4ThreeVector(ux,uy,uz));
>> 81
79 fParticleGun->GeneratePrimaryVertex(anEvent) 82 fParticleGun->GeneratePrimaryVertex(anEvent);
80 } 83 }
81 84
82 //....oooOO0OOooo........oooOO0OOooo........oo 85 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 86
83 87