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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 //
>> 31 //
>> 32
30 //....oooOO0OOooo........oooOO0OOooo........oo 33 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oo 34 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 35
33 #include "PrimaryGeneratorAction.hh" 36 #include "PrimaryGeneratorAction.hh"
34 37
35 #include "G4Event.hh" 38 #include "G4Event.hh"
36 #include "G4ParticleDefinition.hh" <<
37 #include "G4ParticleTable.hh" 39 #include "G4ParticleTable.hh"
>> 40 #include "G4ParticleDefinition.hh"
38 #include "G4PhysicalConstants.hh" 41 #include "G4PhysicalConstants.hh"
39 #include "G4SystemOfUnits.hh" 42 #include "G4SystemOfUnits.hh"
40 #include "Randomize.hh" 43 #include "Randomize.hh"
41 44
42 //....oooOO0OOooo........oooOO0OOooo........oo 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
43 46
44 PrimaryGeneratorAction::PrimaryGeneratorAction 47 PrimaryGeneratorAction::PrimaryGeneratorAction()
>> 48 : G4VUserPrimaryGeneratorAction(),fParticleGun(0)
45 { 49 {
46 G4int n_particle = 1; 50 G4int n_particle = 1;
47 fParticleGun = new G4ParticleGun(n_particle) << 51 fParticleGun = new G4ParticleGun(n_particle);
48 << 52
49 // default particle kinematic 53 // default particle kinematic
50 54
51 G4ParticleDefinition* particle = G4ParticleT << 55 G4ParticleDefinition* particle
>> 56 = G4ParticleTable::GetParticleTable()->FindParticle("neutron");
52 fParticleGun->SetParticleDefinition(particle 57 fParticleGun->SetParticleDefinition(particle);
53 fParticleGun->SetParticleMomentumDirection(G << 58 fParticleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
54 fParticleGun->SetParticleEnergy(2 * MeV); << 59 fParticleGun->SetParticleEnergy(2*MeV);
55 fParticleGun->SetParticlePosition(G4ThreeVec << 60 fParticleGun->SetParticlePosition(G4ThreeVector(0.*cm,0.*cm,0.*cm));
>> 61
56 } 62 }
57 63
58 //....oooOO0OOooo........oooOO0OOooo........oo 64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
59 65
60 PrimaryGeneratorAction::~PrimaryGeneratorActio 66 PrimaryGeneratorAction::~PrimaryGeneratorAction()
61 { 67 {
62 delete fParticleGun; 68 delete fParticleGun;
63 } 69 }
64 70
65 //....oooOO0OOooo........oooOO0OOooo........oo 71 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
66 72
67 void PrimaryGeneratorAction::GeneratePrimaries 73 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
68 { 74 {
69 // this function is called at the begining o << 75 //this function is called at the begining of event
70 // 76 //
71 // distribution uniform in solid angle << 77 //distribution uniform in solid angle
72 // 78 //
73 G4double cosTheta = 2 * G4UniformRand() - 1. << 79 G4double cosTheta = 2*G4UniformRand() - 1., phi = twopi*G4UniformRand();
74 G4double sinTheta = std::sqrt(1. - cosTheta << 80 G4double sinTheta = std::sqrt(1. - cosTheta*cosTheta);
75 G4double ux = sinTheta * std::cos(phi), uy = << 81 G4double ux = sinTheta*std::cos(phi),
76 << 82 uy = sinTheta*std::sin(phi),
77 fParticleGun->SetParticleMomentumDirection(G << 83 uz = cosTheta;
78 84
>> 85 fParticleGun->SetParticleMomentumDirection(G4ThreeVector(ux,uy,uz));
>> 86
79 fParticleGun->GeneratePrimaryVertex(anEvent) 87 fParticleGun->GeneratePrimaryVertex(anEvent);
80 } 88 }
81 89
82 //....oooOO0OOooo........oooOO0OOooo........oo 90 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 91
83 92