Geant4  10.03.p03
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RE04PrimaryGeneratorAction.cc
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32 
33 #include "Randomize.hh"
34 #include "G4Event.hh"
35 #include "G4ParticleGun.hh"
36 #include "G4ParticleTable.hh"
37 #include "G4ParticleDefinition.hh"
38 #include "G4SystemOfUnits.hh"
39 
40 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
43  fParticleGun(0)
44 {
45  G4int n_particle = 1;
46  fParticleGun = new G4ParticleGun(n_particle);
47 
48  // default particle kinematic
50  G4String particleName;
51  G4ParticleDefinition* particle
52  = particleTable->FindParticle(particleName="mu-");
53  fParticleGun->SetParticleDefinition(particle);
54  fParticleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
55  fParticleGun->SetParticlePosition(G4ThreeVector(-75.*cm,0.,0.));
56  fParticleGun->SetParticleEnergy(10.*GeV);
57 }
58 
59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
61 {
62  delete fParticleGun;
63 }
64 
65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
67 {
68  G4double y = 96.0*cm*(G4UniformRand()-0.5);
69  fParticleGun->SetParticlePosition(G4ThreeVector(-75.*cm,y,0.));
70  fParticleGun->GeneratePrimaryVertex(anEvent);
71 }
72 
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
CLHEP::Hep3Vector G4ThreeVector
Definition of the RE04PrimaryGeneratorAction class.
void SetParticleMomentumDirection(G4ParticleMomentum aMomentumDirection)
int G4int
Definition: G4Types.hh:78
virtual void GeneratePrimaryVertex(G4Event *evt)
void SetParticlePosition(G4ThreeVector aPosition)
#define G4UniformRand()
Definition: Randomize.hh:97
static constexpr double cm
Definition: G4SIunits.hh:119
void SetParticleEnergy(G4double aKineticEnergy)
static G4ParticleTable * GetParticleTable()
static constexpr double GeV
Definition: G4SIunits.hh:217
virtual void GeneratePrimaries(G4Event *)
double G4double
Definition: G4Types.hh:76
void SetParticleDefinition(G4ParticleDefinition *aParticleDefinition)