LArSoft  v09_90_00
Liquid Argon Software toolkit - https://larsoft.org/
PrimaryGeneratorAction.cc
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32 
34 
35 #include "DetectorConstruction.hh"
36 
37 #include "G4Event.hh"
38 #include "G4ParticleTable.hh"
39 #include "G4ParticleDefinition.hh"
40 #include "G4SystemOfUnits.hh"
41 
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45 :Detector(DC)
46 {
47  particleGun = new G4ParticleGun(1);
49 }
50 
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52 
54 {
55  delete particleGun;
56 }
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61 {
62  G4ParticleDefinition* particle
63  = G4ParticleTable::GetParticleTable()->FindParticle("e-");
64  particleGun->SetParticleDefinition(particle);
65  particleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
66  particleGun->SetParticleEnergy(100*MeV);
67  G4double position = -0.5*(Detector->GetSize());
68  particleGun->SetParticlePosition(G4ThreeVector(position,0.*cm,0.*cm));
69 }
70 
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72 
74 {
75  //this function is called at the begining of event
76  //
77  particleGun->GeneratePrimaryVertex(anEvent);
78 }
79 
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81 
DetectorConstruction * Detector
PrimaryGeneratorAction(DetectorConstruction *)