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25 //
26 /// \file electromagnetic/TestEm6/src/PrimaryG
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 #include "PrimaryGeneratorMessenger.hh"
37
38 #include "G4Event.hh"
39 #include "G4ParticleDefinition.hh"
40 #include "G4ParticleGun.hh"
41 #include "G4ParticleTable.hh"
42 #include "G4SystemOfUnits.hh"
43 #include "Randomize.hh"
44
45 //....oooOO0OOooo........oooOO0OOooo........oo
46
47 PrimaryGeneratorAction::PrimaryGeneratorAction
48 : G4VUserPrimaryGeneratorAction(), fParticle
49 {
50 fParticleGun = new G4ParticleGun(1);
51 G4ParticleDefinition* particle = G4ParticleT
52 fParticleGun->SetParticleDefinition(particle
53 fParticleGun->SetParticleEnergy(100 * TeV);
54 fParticleGun->SetParticleMomentumDirection(G
55
56 // create a messenger for this class
57 fGunMessenger = new PrimaryGeneratorMessenge
58 }
59
60 //....oooOO0OOooo........oooOO0OOooo........oo
61
62 PrimaryGeneratorAction::~PrimaryGeneratorActio
63 {
64 delete fParticleGun;
65 delete fGunMessenger;
66 }
67
68 //....oooOO0OOooo........oooOO0OOooo........oo
69
70 void PrimaryGeneratorAction::GeneratePrimaries
71 {
72 // this function is called at the begining o
73 //
74 G4double x0 = -0.5 * (fDetector->GetSize());
75 G4double y0 = 0. * cm, z0 = 0. * cm;
76
77 // randomize the beam, if requested.
78 //
79 if (fRndmBeam > 0.) {
80 G4double rbeam = 0.5 * (fDetector->GetSize
81 y0 = (2 * G4UniformRand() - 1.) * rbeam;
82 z0 = (2 * G4UniformRand() - 1.) * rbeam;
83 }
84 fParticleGun->SetParticlePosition(G4ThreeVec
85 fParticleGun->GeneratePrimaryVertex(anEvent)
86 }
87
88 //....oooOO0OOooo........oooOO0OOooo........oo
89