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25 // 25 //
26 /// \file PrimaryGeneratorAction.cc 26 /// \file PrimaryGeneratorAction.cc
27 /// \brief Implementation of the PrimaryGenera 27 /// \brief Implementation of the PrimaryGeneratorAction class
28 // 28 //
29 // 29 //
30 30
31 //....oooOO0OOooo........oooOO0OOooo........oo 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 //....oooOO0OOooo........oooOO0OOooo........oo 32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
33 33
34 #include "PrimaryGeneratorAction.hh" 34 #include "PrimaryGeneratorAction.hh"
35 <<
36 #include "DetectorConstruction.hh" 35 #include "DetectorConstruction.hh"
37 <<
38 #include "G4Event.hh" 36 #include "G4Event.hh"
39 #include "G4ParticleDefinition.hh" <<
40 #include "G4ParticleGun.hh" 37 #include "G4ParticleGun.hh"
41 #include "G4ParticleTable.hh" 38 #include "G4ParticleTable.hh"
42 #include "G4SystemOfUnits.hh" << 39 #include "G4ParticleDefinition.hh"
43 #include "globals.hh" 40 #include "globals.hh"
>> 41 #include "G4SystemOfUnits.hh"
44 42
45 //....oooOO0OOooo........oooOO0OOooo........oo 43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
46 44
47 PrimaryGeneratorAction::PrimaryGeneratorAction << 45 PrimaryGeneratorAction::
48 : fPointerDetectorConstruction(pDetector) << 46 PrimaryGeneratorAction( const DetectorConstruction* pDetector ) :
>> 47 fPointerDetectorConstruction( pDetector )
49 { 48 {
50 G4int n_particle = 1; 49 G4int n_particle = 1;
51 fParticleGun = new G4ParticleGun(n_particle) << 50 fParticleGun = new G4ParticleGun( n_particle );
52 G4ParticleTable* particleTable = G4ParticleT 51 G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
53 //***LOOKHERE*** Default particle and energy 52 //***LOOKHERE*** Default particle and energy
54 fParticleGun->SetParticleDefinition(particle << 53 fParticleGun->SetParticleDefinition( particleTable->FindParticle( "geantino" ) );
55 fParticleGun->SetParticleEnergy(10.0 * GeV); << 54 fParticleGun->SetParticleEnergy( 10.0*GeV );
56 SetGunPosition(); 55 SetGunPosition();
57 } 56 }
58 57
59 //....oooOO0OOooo........oooOO0OOooo........oo 58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
60 59
61 PrimaryGeneratorAction::~PrimaryGeneratorActio << 60 PrimaryGeneratorAction::~PrimaryGeneratorAction() {
62 { <<
63 delete fParticleGun; 61 delete fParticleGun;
64 } 62 }
65 63
66 //....oooOO0OOooo........oooOO0OOooo........oo 64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
67 65
68 void PrimaryGeneratorAction::SetGunPosition() << 66 void PrimaryGeneratorAction::SetGunPosition() const {
69 { <<
70 // Shoot the particle in the middle between 67 // Shoot the particle in the middle between the world and the target layer
71 G4double targetThickness = 68 G4double targetThickness =
72 (fPointerDetectorConstruction ? fPointerDe << 69 ( fPointerDetectorConstruction ? fPointerDetectorConstruction->GetThickness() : 0.0 );
73 G4double gunPosition = -0.55 * targetThickne << 70 G4double gunPosition = -0.55*targetThickness; //***LOOKHERE*** default gun position
74 << 71 // along the z-axis
75 G4cout << G4endl << 72 G4cout << G4endl << "PrimaryGenerationAction::SetGunPosition() : gun position along z = "
76 << "PrimaryGenerationAction::SetGunPo << 73 << gunPosition << " mm " << G4endl << G4endl;
77 << " mm " << G4endl << G4endl; << 74 fParticleGun->SetParticlePosition( G4ThreeVector( 0.0, 0.0, gunPosition ) );
78 fParticleGun->SetParticlePosition(G4ThreeVec <<
79 } 75 }
80 76
81 //....oooOO0OOooo........oooOO0OOooo........oo 77 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
82 78
83 void PrimaryGeneratorAction::GeneratePrimaries << 79 void PrimaryGeneratorAction::GeneratePrimaries( G4Event* anEvent ) {
84 { << 80 G4ThreeVector v( 0.0, 0.0, 1.0 ); //***LOOKHERE*** default shoot along the z-axis
85 G4ThreeVector v(0.0, 0.0, 1.0); //***LOOKHE << 81 fParticleGun->SetParticleMomentumDirection( v );
86 fParticleGun->SetParticleMomentumDirection(v << 82 fParticleGun->GeneratePrimaryVertex( anEvent );
87 fParticleGun->GeneratePrimaryVertex(anEvent) <<
88 } 83 }
89 84
90 //....oooOO0OOooo........oooOO0OOooo........oo 85 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
91 86