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26 //
27 /// \file field/field04/src/F04PrimaryGenerato
28 /// \brief Implementation of the F04PrimaryGen
29 //
30
31 #include "F04PrimaryGeneratorAction.hh"
32
33 #include "F04DetectorConstruction.hh"
34 #include "F04PrimaryGeneratorMessenger.hh"
35
36 #include "G4Event.hh"
37 #include "G4GeometryManager.hh"
38 #include "G4ParticleDefinition.hh"
39 #include "G4ParticleGun.hh"
40 #include "G4ParticleTable.hh"
41 #include "G4PhysicalConstants.hh"
42 #include "G4SystemOfUnits.hh"
43 #include "G4TouchableHandle.hh"
44 #include "G4ios.hh"
45 #include "Randomize.hh"
46
47 //....oooOO0OOooo........oooOO0OOooo........oo
48
49 F04PrimaryGeneratorAction::F04PrimaryGenerator
50 : fDetector(detectorConstruction)
51 {
52 G4int n_particle = 1;
53 fParticleGun = new G4ParticleGun(n_particle)
54
55 fGunMessenger = new F04PrimaryGeneratorMesse
56
57 G4String particleName;
58 G4ParticleTable* particleTable = G4ParticleT
59
60 fParticleGun->SetParticleDefinition(particle
61 fParticleGun->SetParticleEnergy(500. * MeV);
62 fParticleGun->SetParticleMomentumDirection(G
63
64 fZvertex = -0.5 * (fDetector->GetTargetThick
65 fParticleGun->SetParticlePosition(G4ThreeVec
66 }
67
68 //....oooOO0OOooo........oooOO0OOooo........oo
69
70 F04PrimaryGeneratorAction::~F04PrimaryGenerato
71 {
72 delete fParticleGun;
73 delete fGunMessenger;
74 }
75
76 //....oooOO0OOooo........oooOO0OOooo........oo
77
78 void F04PrimaryGeneratorAction::GeneratePrimar
79 {
80 if (!fFirst) {
81 fFirst = true;
82 G4ThreeVector direction(0.0, 0.0, 1.0);
83
84 G4Navigator* theNavigator =
85 G4TransportationManager::GetTransportati
86 if (theNavigator->GetWorldVolume()) {
87 auto aNavigator = new G4Navigator();
88 aNavigator->SetWorldVolume(theNavigator-
89
90 G4ThreeVector center(0., 0., 0.);
91 aNavigator->LocateGlobalPointAndSetup(ce
92
93 G4TouchableHandle touchable = aNavigator
94
95 // set Global2local transform
96 fGlobal2local = touchable->GetHistory()-
97
98 direction = fGlobal2local.Inverse().Tran
99 delete aNavigator;
100 }
101
102 fParticleGun->SetParticleMomentumDirection
103 }
104
105 G4double x0, y0, z0;
106
107 if (fVertexDefined) {
108 x0 = fXvertex;
109 y0 = fYvertex;
110 z0 = fZvertex;
111 }
112 else {
113 x0 = 0.;
114 y0 = 0.;
115 z0 = -0.5 * (fDetector->GetTargetThickness
116 }
117
118 G4double r0, phi0;
119
120 if (fRndmFlag == "on") {
121 r0 = (fDetector->GetTargetRadius()) * std:
122 phi0 = twopi * G4UniformRand();
123 x0 = r0 * std::cos(phi0);
124 y0 = r0 * std::sin(phi0);
125 }
126
127 G4ThreeVector localPosition(x0, y0, z0);
128 G4ThreeVector globalPosition = fGlobal2local
129
130 fParticleGun->SetParticlePosition(globalPosi
131 fParticleGun->GeneratePrimaryVertex(anEvent)
132 }
133
134 //....oooOO0OOooo........oooOO0OOooo........oo
135
136 void F04PrimaryGeneratorAction::SetXvertex(G4d
137 {
138 fVertexDefined = true;
139 fXvertex = x;
140 G4cout << " X coordinate of the primary vert
141 }
142
143 //....oooOO0OOooo........oooOO0OOooo........oo
144
145 void F04PrimaryGeneratorAction::SetYvertex(G4d
146 {
147 fVertexDefined = true;
148 fYvertex = y;
149 G4cout << " Y coordinate of the primary vert
150 }
151
152 //....oooOO0OOooo........oooOO0OOooo........oo
153
154 void F04PrimaryGeneratorAction::SetZvertex(G4d
155 {
156 fVertexDefined = true;
157 fZvertex = z;
158 G4cout << " Z coordinate of the primary vert
159 }
160