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1 // 1 //
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25 // 25 //
26 // 26 //
27 /// \file B2PrimaryGeneratorAction.cc 27 /// \file B2PrimaryGeneratorAction.cc
28 /// \brief Implementation of the B2PrimaryGene 28 /// \brief Implementation of the B2PrimaryGeneratorAction class
29 29
30 #include "B2PrimaryGeneratorAction.hh" 30 #include "B2PrimaryGeneratorAction.hh"
31 31
>> 32 #include "G4LogicalVolumeStore.hh"
>> 33 #include "G4LogicalVolume.hh"
32 #include "G4Box.hh" 34 #include "G4Box.hh"
33 #include "G4Event.hh" 35 #include "G4Event.hh"
34 #include "G4LogicalVolume.hh" <<
35 #include "G4LogicalVolumeStore.hh" <<
36 #include "G4ParticleDefinition.hh" <<
37 #include "G4ParticleGun.hh" 36 #include "G4ParticleGun.hh"
38 #include "G4ParticleTable.hh" 37 #include "G4ParticleTable.hh"
>> 38 #include "G4ParticleDefinition.hh"
39 #include "G4SystemOfUnits.hh" 39 #include "G4SystemOfUnits.hh"
>> 40
40 #include "Randomize.hh" 41 #include "Randomize.hh"
41 42
42 //....oooOO0OOooo........oooOO0OOooo........oo 43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
43 44
44 B2PrimaryGeneratorAction::B2PrimaryGeneratorAc << 45 B2PrimaryGeneratorAction::B2PrimaryGeneratorAction()
>> 46 : G4VUserPrimaryGeneratorAction()
45 { 47 {
46 G4int nofParticles = 1; 48 G4int nofParticles = 1;
47 fParticleGun = new G4ParticleGun(nofParticle 49 fParticleGun = new G4ParticleGun(nofParticles);
48 50
49 // default particle kinematic 51 // default particle kinematic
50 52
51 G4ParticleDefinition* particleDefinition = << 53 G4ParticleDefinition* particleDefinition
52 G4ParticleTable::GetParticleTable()->FindP << 54 = G4ParticleTable::GetParticleTable()->FindParticle("proton");
53 55
54 fParticleGun->SetParticleDefinition(particle 56 fParticleGun->SetParticleDefinition(particleDefinition);
55 fParticleGun->SetParticleMomentumDirection(G << 57 fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.));
56 fParticleGun->SetParticleEnergy(3.0 * GeV); << 58 fParticleGun->SetParticleEnergy(3.0*GeV);
57 } 59 }
58 60
59 //....oooOO0OOooo........oooOO0OOooo........oo 61 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
60 62
61 B2PrimaryGeneratorAction::~B2PrimaryGeneratorA 63 B2PrimaryGeneratorAction::~B2PrimaryGeneratorAction()
62 { 64 {
63 delete fParticleGun; 65 delete fParticleGun;
64 } 66 }
65 67
66 //....oooOO0OOooo........oooOO0OOooo........oo 68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
67 69
68 void B2PrimaryGeneratorAction::GeneratePrimari 70 void B2PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
69 { 71 {
70 // This function is called at the begining o 72 // This function is called at the begining of event
71 73
72 // In order to avoid dependence of PrimaryGe 74 // In order to avoid dependence of PrimaryGeneratorAction
73 // on DetectorConstruction class we get worl 75 // on DetectorConstruction class we get world volume
74 // from G4LogicalVolumeStore. 76 // from G4LogicalVolumeStore.
75 77
76 G4double worldZHalfLength = 0; 78 G4double worldZHalfLength = 0;
77 G4LogicalVolume* worldLV = G4LogicalVolumeSt << 79 G4LogicalVolume* worldLV
>> 80 = G4LogicalVolumeStore::GetInstance()->GetVolume("World");
78 G4Box* worldBox = NULL; 81 G4Box* worldBox = NULL;
79 if (worldLV) worldBox = dynamic_cast<G4Box*> << 82 if ( worldLV ) worldBox = dynamic_cast<G4Box*>(worldLV->GetSolid());
80 if (worldBox) << 83 if ( worldBox ) worldZHalfLength = worldBox->GetZHalfLength();
81 worldZHalfLength = worldBox->GetZHalfLengt << 84 else {
82 else { <<
83 G4cerr << "World volume of box not found." 85 G4cerr << "World volume of box not found." << G4endl;
84 G4cerr << "Perhaps you have changed geomet 86 G4cerr << "Perhaps you have changed geometry." << G4endl;
85 G4cerr << "The gun will be place in the ce 87 G4cerr << "The gun will be place in the center." << G4endl;
86 } 88 }
87 89
88 fParticleGun->SetParticlePosition(G4ThreeVec 90 fParticleGun->SetParticlePosition(G4ThreeVector(0., 0., -worldZHalfLength));
89 91
90 fParticleGun->GeneratePrimaryVertex(anEvent) 92 fParticleGun->GeneratePrimaryVertex(anEvent);
91 } 93 }
92 94
93 //....oooOO0OOooo........oooOO0OOooo........oo 95 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
94 96