Geant4  10.03.p03
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TSPrimaryGeneratorAction.cc
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30 // $Id: TSPrimaryGeneratorAction.cc 93110 2015-11-05 08:37:42Z jmadsen $
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39 
40 
43 
44 #include "G4RunManager.hh"
45 #include "G4Event.hh"
46 #include "G4ParticleGun.hh"
47 #include "G4ParticleTable.hh"
48 #include "G4ParticleDefinition.hh"
49 
50 using namespace CLHEP;
51 
52 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
53 
55 {
56  fGun = new G4ParticleGun(1);
57 
59  G4String particleName;
60  G4ParticleDefinition* particle
61  = particleTable->FindParticle(particleName="neutron");
62 
63  fGun->SetParticleDefinition(particle);
64  fGun->SetParticleEnergy(1.*MeV);
65 
66 }
67 
68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
69 
71 {
72  delete fGun;
73 }
74 
75 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
76 
78 {
79  static TSDetectorConstruction* detector
81 
82  G4ThreeVector dir(0.,0., 1.);
83  G4ThreeVector pos(detector->GetWorldDimensions().x()*(G4UniformRand()-0.5),
84  detector->GetWorldDimensions().y()*(G4UniformRand()-0.5),
85  -0.5*detector->GetWorldDimensions().z());
86 
87  dir /= dir.mag();
88  fGun->SetParticleMomentumDirection(dir);
89  fGun->SetParticlePosition(pos);
90  fGun->GeneratePrimaryVertex(anEvent);
91 }
92 
93 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
94 
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
double x() const
static TSDetectorConstruction * Instance()
double z() const
const G4ThreeVector & GetWorldDimensions() const
#define G4UniformRand()
Definition: Randomize.hh:97
static constexpr double MeV
static G4ParticleTable * GetParticleTable()
double y() const
Definition of the TSDetectorConstruction class.
Definition of the TSPrimaryGeneratorAction class.
double mag() const
static const G4double pos