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26 //
27 /// \file B3/B3b/src/DetectorConstruction.cc
28 /// \brief Implementation of the B3::DetectorC
29
30 #include "DetectorConstruction.hh"
31
32 #include "G4Box.hh"
33 #include "G4LogicalVolume.hh"
34 #include "G4MultiFunctionalDetector.hh"
35 #include "G4NistManager.hh"
36 #include "G4PSDoseDeposit.hh"
37 #include "G4PSEnergyDeposit.hh"
38 #include "G4PVPlacement.hh"
39 #include "G4PhysicalConstants.hh"
40 #include "G4RotationMatrix.hh"
41 #include "G4SDManager.hh"
42 #include "G4SystemOfUnits.hh"
43 #include "G4Transform3D.hh"
44 #include "G4Tubs.hh"
45 #include "G4VisAttributes.hh"
46
47 namespace B3
48 {
49
50 //....oooOO0OOooo........oooOO0OOooo........oo
51
52 DetectorConstruction::DetectorConstruction()
53 {
54 DefineMaterials();
55 }
56
57 //....oooOO0OOooo........oooOO0OOooo........oo
58
59 void DetectorConstruction::DefineMaterials()
60 {
61 G4NistManager* man = G4NistManager::Instance
62
63 G4bool isotopes = false;
64
65 G4Element* O = man->FindOrBuildElement("O",
66 G4Element* Si = man->FindOrBuildElement("Si"
67 G4Element* Lu = man->FindOrBuildElement("Lu"
68
69 auto LSO = new G4Material("Lu2SiO5", 7.4 * g
70 LSO->AddElement(Lu, 2);
71 LSO->AddElement(Si, 1);
72 LSO->AddElement(O, 5);
73 }
74
75 //....oooOO0OOooo........oooOO0OOooo........oo
76
77 G4VPhysicalVolume* DetectorConstruction::Const
78 {
79 // Gamma detector Parameters
80 //
81 G4double cryst_dX = 6 * cm, cryst_dY = 6 * c
82 G4int nb_cryst = 32;
83 G4int nb_rings = 9;
84 //
85 G4double dPhi = twopi / nb_cryst, half_dPhi
86 G4double cosdPhi = std::cos(half_dPhi);
87 G4double tandPhi = std::tan(half_dPhi);
88 //
89 G4double ring_R1 = 0.5 * cryst_dY / tandPhi;
90 G4double ring_R2 = (ring_R1 + cryst_dZ) / co
91 //
92 G4double detector_dZ = nb_rings * cryst_dX;
93 //
94 G4NistManager* nist = G4NistManager::Instanc
95 G4Material* default_mat = nist->FindOrBuildM
96 G4Material* cryst_mat = nist->FindOrBuildMat
97
98 //
99 // World
100 //
101 G4double world_sizeXY = 2.4 * ring_R2;
102 G4double world_sizeZ = 1.2 * detector_dZ;
103
104 auto solidWorld =
105 new G4Box("World", // its name
106 0.5 * world_sizeXY, 0.5 * world_
107
108 auto logicWorld = new G4LogicalVolume(solidW
109 defaul
110 "World
111
112 auto physWorld = new G4PVPlacement(nullptr,
113 G4ThreeVe
114 logicWorl
115 "World",
116 nullptr,
117 false, /
118 0, // co
119 fCheckOve
120
121 //
122 // ring
123 //
124 auto solidRing = new G4Tubs("Ring", ring_R1,
125
126 auto logicRing = new G4LogicalVolume(solidRi
127 default
128 "Ring")
129
130 //
131 // define crystal
132 //
133 G4double gap = 0.5 * mm; // a gap for wrapp
134 G4double dX = cryst_dX - gap, dY = cryst_dY
135 auto solidCryst = new G4Box("crystal", dX /
136
137 auto logicCryst = new G4LogicalVolume(solidC
138 cryst_
139 "Cryst
140
141 // place crystals within a ring
142 //
143 for (G4int icrys = 0; icrys < nb_cryst; icry
144 G4double phi = icrys * dPhi;
145 G4RotationMatrix rotm = G4RotationMatrix()
146 rotm.rotateY(90 * deg);
147 rotm.rotateZ(phi);
148 G4ThreeVector uz = G4ThreeVector(std::cos(
149 G4ThreeVector position = (ring_R1 + 0.5 *
150 G4Transform3D transform = G4Transform3D(ro
151
152 new G4PVPlacement(transform, // rotation,
153 logicCryst, // its logi
154 "crystal", // its name
155 logicRing, // its mothe
156 false, // no boolean op
157 icrys, // copy number
158 fCheckOverlaps); // che
159 }
160
161 //
162 // full detector
163 //
164 auto solidDetector = new G4Tubs("Detector",
165
166 auto logicDetector = new G4LogicalVolume(sol
167 def
168 "De
169
170 //
171 // place rings within detector
172 //
173 G4double OG = -0.5 * (detector_dZ + cryst_dX
174 for (G4int iring = 0; iring < nb_rings; irin
175 OG += cryst_dX;
176 new G4PVPlacement(nullptr, // no rotation
177 G4ThreeVector(0, 0, OG),
178 logicRing, // its logic
179 "ring", // its name
180 logicDetector, // its m
181 false, // no boolean op
182 iring, // copy number
183 fCheckOverlaps); // che
184 }
185
186 //
187 // place detector in world
188 //
189 new G4PVPlacement(nullptr, // no rotation
190 G4ThreeVector(), // at (0
191 logicDetector, // its log
192 "Detector", // its name
193 logicWorld, // its mother
194 false, // no boolean oper
195 0, // copy number
196 fCheckOverlaps); // check
197
198 //
199 // patient
200 //
201 G4double patient_radius = 8 * cm;
202 G4double patient_dZ = 10 * cm;
203 G4Material* patient_mat = nist->FindOrBuildM
204
205 auto solidPatient = new G4Tubs("Patient", 0.
206
207 auto logicPatient = new G4LogicalVolume(soli
208 pati
209 "Pat
210
211 //
212 // place patient in world
213 //
214 new G4PVPlacement(nullptr, // no rotation
215 G4ThreeVector(), // at (0
216 logicPatient, // its logi
217 "Patient", // its name
218 logicWorld, // its mother
219 false, // no boolean oper
220 0, // copy number
221 fCheckOverlaps); // check
222
223 // Visualization attributes
224 //
225 logicRing->SetVisAttributes(G4VisAttributes:
226 logicDetector->SetVisAttributes(G4VisAttribu
227
228 // Print materials
229 G4cout << *(G4Material::GetMaterialTable())
230
231 // always return the physical World
232 //
233 return physWorld;
234 }
235
236 //....oooOO0OOooo........oooOO0OOooo........oo
237
238 void DetectorConstruction::ConstructSDandField
239 {
240 G4SDManager::GetSDMpointer()->SetVerboseLeve
241
242 // declare crystal as a MultiFunctionalDetec
243 //
244 auto cryst = new G4MultiFunctionalDetector("
245 G4SDManager::GetSDMpointer()->AddNewDetector
246 G4VPrimitiveScorer* primitiv1 = new G4PSEner
247 cryst->RegisterPrimitive(primitiv1);
248 SetSensitiveDetector("CrystalLV", cryst);
249
250 // declare patient as a MultiFunctionalDetec
251 //
252 auto patient = new G4MultiFunctionalDetector
253 G4SDManager::GetSDMpointer()->AddNewDetector
254 G4VPrimitiveScorer* primitiv2 = new G4PSDose
255 patient->RegisterPrimitive(primitiv2);
256 SetSensitiveDetector("PatientLV", patient);
257 }
258
259 //....oooOO0OOooo........oooOO0OOooo........oo
260
261 } // namespace B3
262