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26 //
27 /// \file ExGflashDetectorConstruction.cc
28 /// \brief Implementation of the ExGflashDetectorConstruction class
29 //
30
31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
33
34 // User Classes
35 #include "ExGflashDetectorConstruction.hh"
36
37 #include "ExGflashHomoShowerTuning.hh"
38 #include "ExGflashMessenger.hh"
39 #include "ExGflashSensitiveDetector.hh"
40
41 // G4 Classes
42 #include "G4AutoDelete.hh"
43 #include "G4Box.hh"
44 #include "G4Colour.hh"
45 #include "G4LogicalVolume.hh"
46 #include "G4Material.hh"
47 #include "G4NistManager.hh"
48 #include "G4PVPlacement.hh"
49 #include "G4RunManager.hh"
50 #include "G4SDManager.hh"
51 #include "G4SystemOfUnits.hh"
52 #include "G4ThreeVector.hh"
53 #include "G4VPhysicalVolume.hh"
54 #include "G4VisAttributes.hh"
55 #include "globals.hh"
56
57 // fast simulation
58 #include "GFlashHitMaker.hh"
59 #include "GFlashHomoShowerParameterisation.hh"
60 #include "GFlashParticleBounds.hh"
61 #include "GFlashShowerModel.hh"
62
63 #include "G4FastSimulationManager.hh"
64
65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
66
67 const G4int kMaxBin = 500;
68
69 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
70
71 ExGflashDetectorConstruction::ExGflashDetectorConstruction()
72 {
73 if (fVerbose > 3) G4cout << "ExGflashDetectorConstruction::Detector constructor" << G4endl;
74 fGflashMessenger = new ExGflashMessenger(this);
75
76 // Crystall
77 fCrystalWidth = 3 * cm;
78 fCrystalLength = 140 * cm;
79
80 DefineMaterials();
81 SetMaterial("G4_PbWO4");
82 }
83
84 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
85
86 ExGflashDetectorConstruction::~ExGflashDetectorConstruction()
87 {
88 delete fGflashMessenger;
89 delete fFastShowerModel;
90 delete fParameterisation;
91 delete fParticleBounds;
92 delete fHitMaker;
93 }
94
95 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
96
97 void ExGflashDetectorConstruction::DefineMaterials()
98 {
99 if (fVerbose > 3) G4cout << "Defining the materials" << G4endl;
100 // Get nist material manager
101 G4NistManager* nistManager = G4NistManager::Instance();
102 // Build materials
103 fHallMat = nistManager->FindOrBuildMaterial("G4_AIR");
104 fDetMat = nistManager->FindOrBuildMaterial("G4_PbWO4");
105 nistManager->FindOrBuildMaterial("G4_CESIUM_IODIDE");
106 }
107
108 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
109
110 G4VPhysicalVolume* ExGflashDetectorConstruction::Construct()
111 {
112 //--------- Definitions of Solids, Logical Volumes, Physical Volumes ---------
113
114 //------------------------------
115 // Calorimeter segments
116 //------------------------------
117 // Simplified `CMS-like` PbWO4 crystal calorimeter
118
119 // Calorimeter
120 G4double calo_xside = (fCrystalWidth * fNbOfCrystals);
121 G4double calo_yside = (fCrystalWidth * fNbOfCrystals);
122 G4double calo_zside = fCrystalLength;
123
124 // The Experimental Hall
125 G4double experimentalHall_x = calo_xside * 4;
126 G4double experimentalHall_y = calo_yside * 4;
127 G4double experimentalHall_z = calo_zside * 4;
128
129 G4VSolid* experimentalHall_box = new G4Box("expHall_box", // World Volume
130 experimentalHall_x, // x size
131 experimentalHall_y, // y size
132 experimentalHall_z); // z size
133
134 auto experimentalHall_log = new G4LogicalVolume(experimentalHall_box, fHallMat, "expHall_log",
135 nullptr, // opt: fieldManager
136 nullptr, // opt: SensitiveDetector
137 nullptr); // opt: UserLimits
138 G4VPhysicalVolume* experimentalHall_phys =
139 new G4PVPlacement(nullptr,
140 G4ThreeVector(), // at (0,0,0)
141 "expHall", experimentalHall_log, nullptr, false, 0);
142
143 auto calo_box = new G4Box("Calorimeter", // its name
144 calo_xside / 2., // size
145 calo_yside / 2., calo_zside / 2.);
146 auto calo_log = new G4LogicalVolume(calo_box, // its solid
147 fHallMat, // its material
148 "calo_log", // its name
149 nullptr, // opt: fieldManager
150 nullptr, // opt: SensitiveDetector
151 nullptr); // opt: UserLimit
152
153 G4double xpos = 0.0;
154 G4double ypos = 0.0;
155 G4double zpos = calo_zside / 2.; // face @ z= 0.0
156
157 new G4PVPlacement(nullptr, G4ThreeVector(xpos, ypos, zpos), calo_log, "calorimeter",
158 experimentalHall_log, false, 1);
159
160 // Crystals
161 G4VSolid* crystal_box = new G4Box("Crystal", // its name
162 fCrystalWidth / 2, fCrystalWidth / 2, fCrystalLength / 2);
163 // size
164 fCrystal_log = new G4LogicalVolume(crystal_box, // its solid
165 fDetMat, // its material
166 "Crystal_log"); // its name
167
168 for (G4int i = 0; i < fNbOfCrystals; i++) {
169 for (G4int j = 0; j < fNbOfCrystals; j++) {
170 G4int n = i * 10 + j;
171 G4ThreeVector crystalPos((i * fCrystalWidth) - (calo_xside - fCrystalWidth) / 2.,
172 (j * fCrystalWidth) - (calo_yside - fCrystalWidth) / 2., 0);
173 new G4PVPlacement(nullptr, // no rotation
174 crystalPos, // translation
175 fCrystal_log,
176 "crystal", // its name
177 calo_log, false, n);
178 }
179 }
180 G4cout << "There are " << fNbOfCrystals << " crystals per row in the calorimeter, so in total "
181 << fNbOfCrystals * fNbOfCrystals << " crystals" << G4endl;
182 G4cout << "They have width of " << fCrystalWidth / cm << " cm and a length of "
183 << fCrystalLength / cm << " cm." << G4endl;
184 G4cout << fDetMat << G4endl;
185 G4cout << "Total Calorimeter size " << calo_xside / cm << " cm x " << calo_yside / cm << " cm x "
186 << calo_zside / cm << " cm" << G4endl;
187
188 experimentalHall_log->SetVisAttributes(G4VisAttributes::GetInvisible());
189 auto caloVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 1.0));
190 auto crystalVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 0.0));
191 calo_log->SetVisAttributes(caloVisAtt);
192 fCrystal_log->SetVisAttributes(crystalVisAtt);
193
194 // define the fParameterisation region
195 // G4cout << "\n ---> DetectorConstruction Region Definition" << G4endl;
196 fRegion = new G4Region("crystals");
197 calo_log->SetRegion(fRegion);
198 fRegion->AddRootLogicalVolume(calo_log);
199
200 return experimentalHall_phys;
201 }
202
203 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
204
205 void ExGflashDetectorConstruction::ConstructSDandField()
206 {
207 // -- fast simulation models:
208 // **********************************************
209 // * Initializing shower modell
210 // ***********************************************
211 if (fParameterisation != nullptr) {
212 fParameterisation->SetMaterial(fDetMat);
213 if (fVerbose > 3) G4cout << "Info " << __func__ << " Param Mat " << fDetMat << G4endl;
214 fParameterisation->PrintMaterial(fDetMat);
215 }
216 else {
217 // -- sensitive detectors:
218
219 G4SDManager* SDman = G4SDManager::GetSDMpointer();
220
221 auto SD = new ExGflashSensitiveDetector("Calorimeter", this);
222
223 SDman->AddNewDetector(SD);
224 if (fCrystal_log != nullptr) {
225 fCrystal_log->SetSensitiveDetector(SD);
226 }
227
228 if (fVerbose > 3) G4cout << "\n--> Creating shower parameterization models" << G4endl;
229 fFastShowerModel = new GFlashShowerModel("fFastShowerModel", fRegion);
230 fParameterisation =
231 new GFlashHomoShowerParameterisation(fDetMat, new ExGflashHomoShowerTuning());
232 fFastShowerModel->SetParameterisation(*fParameterisation);
233 // Energy Cuts to kill particles:
234 fParticleBounds = new GFlashParticleBounds();
235 fFastShowerModel->SetParticleBounds(*fParticleBounds);
236 // Makes the EnergieSpots
237 fHitMaker = new GFlashHitMaker();
238 fFastShowerModel->SetHitMaker(*fHitMaker);
239 if (fVerbose > 3) G4cout << "end shower parameterization." << G4endl;
240 }
241 // **********************************************
242 // Get Rad Len and R moliere from parameterisation
243 fSDRadLen = fParameterisation->GetX0();
244 fSDRm = fParameterisation->GetRm();
245 if (fVerbose > 2) {
246 G4cout << "Info " << __func__ << "Total Calorimeter size" << G4endl;
247 auto calo_xyside = fCrystalWidth * fNbOfCrystals;
248 G4cout << "Info Z " << __func__ << " " << fCrystalLength / cm << " cm "
249 << fCrystalLength / fSDRadLen << " RadLen " << G4endl;
250 G4cout << "Info XY " << __func__ << " " << calo_xyside / cm << " cm " << calo_xyside / fSDRm
251 << " Rm " << G4endl;
252 }
253 }
254
255 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
256
257 void ExGflashDetectorConstruction::SetLBining(G4ThreeVector Value)
258 {
259 fNLtot = (G4int)Value(0);
260 if (fNLtot > kMaxBin) {
261 G4cout << "\n ---> warning from SetLBining: " << fNLtot << " truncated to " << kMaxBin
262 << G4endl;
263 fNLtot = kMaxBin;
264 }
265 fDLradl = Value(1);
266 }
267
268 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
269
270 void ExGflashDetectorConstruction::SetRBining(G4ThreeVector Value)
271 {
272 fNRtot = (G4int)Value(0);
273 if (fNRtot > kMaxBin) {
274 G4cout << "\n ---> warning from SetRBining: " << fNRtot << " truncated to " << kMaxBin
275 << G4endl;
276 fNRtot = kMaxBin;
277 }
278 fDRradl = Value(1);
279 }
280
281 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
282
283 void ExGflashDetectorConstruction::SetMaterial(G4String mat)
284 {
285 // search the material by its name
286 G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(mat);
287
288 if (pttoMaterial != nullptr && fDetMat != pttoMaterial) {
289 fDetMat = pttoMaterial;
290 if (fCrystal_log != nullptr) {
291 fCrystal_log->SetMaterial(fDetMat);
292 }
293 G4RunManager::GetRunManager()->PhysicsHasBeenModified();
294 }
295 }
296
297 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
298