| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
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18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
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24 // *******************************************
25 //
26 /// \file PrimaryGeneratorAction.cc
27 /// \brief Implementation of the PrimaryGenera
28 //
29 //
30 //....oooOO0OOooo........oooOO0OOooo........oo
31 //....oooOO0OOooo........oooOO0OOooo........oo
32
33 #include "PrimaryGeneratorAction.hh"
34
35 #include "DetectorConstruction.hh"
36
37 #include "G4Event.hh"
38 #include "G4ParticleDefinition.hh"
39 #include "G4ParticleTable.hh"
40 #include "G4SystemOfUnits.hh"
41 #include "Randomize.hh"
42
43 //....oooOO0OOooo........oooOO0OOooo........oo
44
45 PrimaryGeneratorAction::PrimaryGeneratorAction
46 {
47 fParticleGun = new G4ParticleGun(1);
48 G4ParticleDefinition* particle = G4ParticleT
49 fParticleGun->SetParticleDefinition(particle
50 fParticleGun->SetParticleEnergy(1 * MeV);
51 fParticleGun->SetParticleMomentumDirection(G
52 }
53
54 //....oooOO0OOooo........oooOO0OOooo........oo
55
56 PrimaryGeneratorAction::~PrimaryGeneratorActio
57 {
58 delete fParticleGun;
59 }
60
61 //....oooOO0OOooo........oooOO0OOooo........oo
62
63 void PrimaryGeneratorAction::GeneratePrimaries
64 {
65 // this function is called at the begining o
66 //
67 G4double halfSize = 0.5 * (fDetector->GetSiz
68 G4double x0 = -halfSize + 1. * nm;
69
70 // randomize (y0,z0)
71 //
72 G4double beam = 0.8 * halfSize;
73 G4double y0 = (2 * G4UniformRand() - 1.) * b
74 G4double z0 = (2 * G4UniformRand() - 1.) * b
75
76 fParticleGun->SetParticlePosition(G4ThreeVec
77 fParticleGun->GeneratePrimaryVertex(anEvent)
78 }
79
80 //....oooOO0OOooo........oooOO0OOooo........oo
81