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25 // 25 //
26 // 26 //
27 //....oooOO0OOooo........oooOO0OOooo........oo 27 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
28 //....oooOO0OOooo........oooOO0OOooo........oo 28 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
29 29
30 #include "DetectorConstruction.hh" 30 #include "DetectorConstruction.hh"
31 31
32 #include "G4SystemOfUnits.hh" 32 #include "G4SystemOfUnits.hh"
33 #include "G4PhysicalConstants.hh" 33 #include "G4PhysicalConstants.hh"
34 #include "G4Material.hh" 34 #include "G4Material.hh"
35 #include "G4Tubs.hh" 35 #include "G4Tubs.hh"
36 #include "G4Box.hh" 36 #include "G4Box.hh"
37 #include "G4LogicalVolume.hh" 37 #include "G4LogicalVolume.hh"
38 #include "G4PVPlacement.hh" 38 #include "G4PVPlacement.hh"
39 #include "G4PVReplica.hh" 39 #include "G4PVReplica.hh"
40 #include "G4Transform3D.hh" 40 #include "G4Transform3D.hh"
41 #include "G4RotationMatrix.hh" 41 #include "G4RotationMatrix.hh"
42 42
43 #include "G4GeometryManager.hh" 43 #include "G4GeometryManager.hh"
44 #include "G4PhysicalVolumeStore.hh" 44 #include "G4PhysicalVolumeStore.hh"
45 #include "G4LogicalVolumeStore.hh" 45 #include "G4LogicalVolumeStore.hh"
46 #include "G4SolidStore.hh" 46 #include "G4SolidStore.hh"
47 47
48 #include "G4VisAttributes.hh" 48 #include "G4VisAttributes.hh"
49 49
50 50
51 //....oooOO0OOooo........oooOO0OOooo........oo 51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
52 52
53 DetectorConstruction::DetectorConstruction() 53 DetectorConstruction::DetectorConstruction()
54 :fiberMat(0),lvol_fiber(0), absorberMat(0),lvo 54 :fiberMat(0),lvol_fiber(0), absorberMat(0),lvol_layer(0),
55 moduleMat(0),lvol_module(0), calorimeterMat(0 55 moduleMat(0),lvol_module(0), calorimeterMat(0),lvol_calorimeter(0),
56 worldMat(0),pvol_world(0), defaultMat(0) 56 worldMat(0),pvol_world(0), defaultMat(0)
57 { 57 {
58 // materials 58 // materials
59 DefineMaterials(); 59 DefineMaterials();
60 60
61 // default parameter values of calorimeter 61 // default parameter values of calorimeter
62 // 62 //
63 fiberDiameter = 1.13*mm; //1.08*mm 63 fiberDiameter = 1.13*mm; //1.08*mm
64 nbOfFibers = 490; //490 64 nbOfFibers = 490; //490
65 distanceInterFibers = 1.35*mm; //1.35*mm 65 distanceInterFibers = 1.35*mm; //1.35*mm
66 layerThickness = 1.73*mm; //1.68*mm 66 layerThickness = 1.73*mm; //1.68*mm
67 milledLayer = 1.00*mm; //1.40*mm 67 milledLayer = 1.00*mm; //1.40*mm ?
68 nbOfLayers = 10; //10 68 nbOfLayers = 10; //10
69 nbOfModules = 9; //9 69 nbOfModules = 9; //9
70 70
71 fiberLength = (nbOfFibers+0.5)*dista 71 fiberLength = (nbOfFibers+0.5)*distanceInterFibers; //662.175*mm
72 } 72 }
73 73
74 //....oooOO0OOooo........oooOO0OOooo........oo 74 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
75 75
76 DetectorConstruction::~DetectorConstruction() 76 DetectorConstruction::~DetectorConstruction()
77 { } 77 { }
78 78
79 //....oooOO0OOooo........oooOO0OOooo........oo 79 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
80 80
81 G4VPhysicalVolume* DetectorConstruction::Const 81 G4VPhysicalVolume* DetectorConstruction::Construct()
82 { 82 {
83 return ConstructCalorimeter(); 83 return ConstructCalorimeter();
84 } 84 }
85 85
86 //....oooOO0OOooo........oooOO0OOooo........oo 86 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
87 87
88 void DetectorConstruction::DefineMaterials() 88 void DetectorConstruction::DefineMaterials()
89 { 89 {
90 // define Elements 90 // define Elements
91 // 91 //
92 G4Element* H = new G4Element("Hydrogen","H" 92 G4Element* H = new G4Element("Hydrogen","H", 1, 1.01*g/mole);
93 G4Element* C = new G4Element("Carbon", "C" 93 G4Element* C = new G4Element("Carbon", "C", 6, 12.01*g/mole);
94 G4Element* N = new G4Element("Nitrogen","N" 94 G4Element* N = new G4Element("Nitrogen","N", 7, 14.01*g/mole);
95 G4Element* O = new G4Element("Oxygen", "O" 95 G4Element* O = new G4Element("Oxygen", "O", 8, 16.00*g/mole);
96 96
97 G4int natoms, ncomponents; 97 G4int natoms, ncomponents;
98 G4double density, massfraction; 98 G4double density, massfraction;
99 99
100 // Lead 100 // Lead
101 // 101 //
102 G4Material* Pb = 102 G4Material* Pb =
103 new G4Material("Lead", 82., 207.20*g/mole, d 103 new G4Material("Lead", 82., 207.20*g/mole, density= 0.98*11.20*g/cm3);
104 104
105 // Scintillator 105 // Scintillator
106 // 106 //
107 G4Material* Sci = 107 G4Material* Sci =
108 new G4Material("Scintillator", density= 1.03 108 new G4Material("Scintillator", density= 1.032*g/cm3, ncomponents=2);
109 Sci->AddElement(C, natoms=8); 109 Sci->AddElement(C, natoms=8);
110 Sci->AddElement(H, natoms=8); 110 Sci->AddElement(H, natoms=8);
111 111
112 Sci->GetIonisation()->SetBirksConstant(0.126 112 Sci->GetIonisation()->SetBirksConstant(0.126*mm/MeV);
113 113
114 // Air 114 // Air
115 // 115 //
116 G4Material* Air = 116 G4Material* Air =
117 new G4Material("Air", density= 1.290*mg/cm3, 117 new G4Material("Air", density= 1.290*mg/cm3, ncomponents=2);
118 Air->AddElement(N, massfraction=70*perCent); 118 Air->AddElement(N, massfraction=70*perCent);
119 Air->AddElement(O, massfraction=30.*perCent) 119 Air->AddElement(O, massfraction=30.*perCent);
120 120
121 // example of vacuum 121 // example of vacuum
122 // 122 //
123 density = universe_mean_density; //fr 123 density = universe_mean_density; //from PhysicalConstants.h
124 G4double pressure = 3.e-18*pascal; 124 G4double pressure = 3.e-18*pascal;
125 G4double temperature = 2.73*kelvin; 125 G4double temperature = 2.73*kelvin;
126 G4Material* Vacuum = 126 G4Material* Vacuum =
127 new G4Material("Galactic", 1., 1.008*g/mole, 127 new G4Material("Galactic", 1., 1.008*g/mole, density,
128 kStateGas,tempera 128 kStateGas,temperature,pressure);
129 129
130 //attribute materials 130 //attribute materials
131 // 131 //
132 defaultMat = Vacuum; 132 defaultMat = Vacuum;
133 fiberMat = Sci; 133 fiberMat = Sci;
134 absorberMat = Pb; 134 absorberMat = Pb;
135 moduleMat = defaultMat; 135 moduleMat = defaultMat;
136 calorimeterMat = defaultMat; 136 calorimeterMat = defaultMat;
137 worldMat = defaultMat; 137 worldMat = defaultMat;
138 138
139 // print table 139 // print table
140 // 140 //
141 G4cout << *(G4Material::GetMaterialTable()) 141 G4cout << *(G4Material::GetMaterialTable()) << G4endl;
142 } 142 }
143 143
144 //....oooOO0OOooo........oooOO0OOooo........oo 144 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
145 145
146 G4VPhysicalVolume* DetectorConstruction::Const 146 G4VPhysicalVolume* DetectorConstruction::ConstructCalorimeter()
147 { 147 {
148 // Cleanup old geometry 148 // Cleanup old geometry
149 // 149 //
150 G4GeometryManager::GetInstance()->OpenGeomet 150 G4GeometryManager::GetInstance()->OpenGeometry();
151 G4PhysicalVolumeStore::GetInstance()->Clean( 151 G4PhysicalVolumeStore::GetInstance()->Clean();
152 G4LogicalVolumeStore::GetInstance()->Clean() 152 G4LogicalVolumeStore::GetInstance()->Clean();
153 G4SolidStore::GetInstance()->Clean(); 153 G4SolidStore::GetInstance()->Clean();
154 154
155 // fibers 155 // fibers
156 // 156 //
157 G4Tubs* 157 G4Tubs*
158 svol_fiber = new G4Tubs("fiber", //name 158 svol_fiber = new G4Tubs("fiber", //name
159 0*mm, 0.5*fiberDiamet 159 0*mm, 0.5*fiberDiameter, //r1, r2
160 0.5*fiberLength, //half-length 160 0.5*fiberLength, //half-length
161 0., twopi); //theta1, theta2 161 0., twopi); //theta1, theta2
162 162
163 lvol_fiber = new G4LogicalVolume(svol_fiber, 163 lvol_fiber = new G4LogicalVolume(svol_fiber, //solid
164 fiberMat, 164 fiberMat, //material
165 "fiber"); 165 "fiber"); //name
166 166
167 // layer 167 // layer
168 // 168 //
169 G4double sizeX = layerThickness; 169 G4double sizeX = layerThickness;
170 G4double sizeY = distanceInterFibers*nbOfFib 170 G4double sizeY = distanceInterFibers*nbOfFibers;
171 G4double sizeZ = fiberLength; 171 G4double sizeZ = fiberLength;
172 172
173 G4Box* 173 G4Box*
174 svol_layer = new G4Box("layer", //name 174 svol_layer = new G4Box("layer", //name
175 0.5*sizeX, 0.5*sizeY, 0.5*si 175 0.5*sizeX, 0.5*sizeY, 0.5*sizeZ); //size
176 176
177 177
178 lvol_layer = new G4LogicalVolume(svol_layer, 178 lvol_layer = new G4LogicalVolume(svol_layer, //solid
179 absorberMat 179 absorberMat, //material
180 "layer"); 180 "layer"); //name
181 181
182 // put fibers within layer 182 // put fibers within layer
183 // 183 //
184 G4double Xcenter = 0.; 184 G4double Xcenter = 0.;
185 G4double Ycenter = -0.5*(sizeY + distanceInt 185 G4double Ycenter = -0.5*(sizeY + distanceInterFibers);
186 186
187 for (G4int k=0; k<nbOfFibers; k++) { 187 for (G4int k=0; k<nbOfFibers; k++) {
188 Ycenter += distanceInterFibers; 188 Ycenter += distanceInterFibers;
189 new G4PVPlacement(0, //no rotatio 189 new G4PVPlacement(0, //no rotation
190 G4ThreeVector(Xcenter,Ycenter,0.), 190 G4ThreeVector(Xcenter,Ycenter,0.), //position
191 lvol_fiber, 191 lvol_fiber, //logical volume
192 "fiber", //name 192 "fiber", //name
193 lvol_layer, // 193 lvol_layer, //mother
194 false, // 194 false, //no boulean operat
195 k+1); 195 k+1); //copy number
196 196
197 } 197 }
198 198
199 // modules 199 // modules
200 // 200 //
201 moduleThickness = layerThickness*nbOfLayers 201 moduleThickness = layerThickness*nbOfLayers + milledLayer;
202 sizeX = moduleThickness; 202 sizeX = moduleThickness;
203 sizeY = fiberLength; 203 sizeY = fiberLength;
204 sizeZ = fiberLength; 204 sizeZ = fiberLength;
205 205
206 G4Box* 206 G4Box*
207 svol_module = new G4Box("module", //name 207 svol_module = new G4Box("module", //name
208 0.5*sizeX, 0.5*sizeY, 0.5*si 208 0.5*sizeX, 0.5*sizeY, 0.5*sizeZ); //size
209 209
210 lvol_module = new G4LogicalVolume(svol_modul 210 lvol_module = new G4LogicalVolume(svol_module, //solid
211 absorberMat 211 absorberMat, //material
212 "module"); 212 "module"); //name
213 213
214 // put layers within module 214 // put layers within module
215 // 215 //
216 Xcenter = -0.5*(nbOfLayers+1)*layerThickness 216 Xcenter = -0.5*(nbOfLayers+1)*layerThickness;
217 Ycenter = 0.25*distanceInterFibers; 217 Ycenter = 0.25*distanceInterFibers;
218 218
219 for (G4int k=0; k<nbOfLayers; k++) { 219 for (G4int k=0; k<nbOfLayers; k++) {
220 Xcenter += layerThickness; 220 Xcenter += layerThickness;
221 Ycenter = - Ycenter; 221 Ycenter = - Ycenter;
222 new G4PVPlacement(0, //no rotatio 222 new G4PVPlacement(0, //no rotation
223 G4ThreeVector(Xcenter,Ycenter,0.), 223 G4ThreeVector(Xcenter,Ycenter,0.), //position
224 lvol_layer, 224 lvol_layer, //logical volume
225 "layer", //name 225 "layer", //name
226 lvol_module, 226 lvol_module, //mother
227 false, // 227 false, //no boulean operat
228 k+1); 228 k+1); //copy number
229 229
230 } 230 }
231 231
232 // calorimeter 232 // calorimeter
233 // 233 //
234 calorThickness = moduleThickness*nbOfModules 234 calorThickness = moduleThickness*nbOfModules;
235 sizeX = calorThickness; 235 sizeX = calorThickness;
236 sizeY = fiberLength; 236 sizeY = fiberLength;
237 sizeZ = fiberLength; 237 sizeZ = fiberLength;
238 238
239 G4Box* 239 G4Box*
240 svol_calorimeter = new G4Box("calorimeter", 240 svol_calorimeter = new G4Box("calorimeter", //name
241 0.5*sizeX, 0.5*sizeY, 0.5*si 241 0.5*sizeX, 0.5*sizeY, 0.5*sizeZ); //size
242 242
243 243
244 lvol_calorimeter = new G4LogicalVolume(svol_ 244 lvol_calorimeter = new G4LogicalVolume(svol_calorimeter, //solid
245 calorimeter 245 calorimeterMat, //material
246 "calorimete 246 "calorimeter"); //name
247 247
248 // put modules inside calorimeter 248 // put modules inside calorimeter
249 // 249 //
250 Xcenter = -0.5*(calorThickness + moduleThick 250 Xcenter = -0.5*(calorThickness + moduleThickness);
251 251
252 252
253 for (G4int k=0; k<nbOfModules; k++) { 253 for (G4int k=0; k<nbOfModules; k++) {
254 Xcenter += moduleThickness; 254 Xcenter += moduleThickness;
255 G4RotationMatrix rotm; 255 G4RotationMatrix rotm; //rotation matrix to place modules
256 if ((k+1)%2 == 0) rotm.rotateX(90*deg); 256 if ((k+1)%2 == 0) rotm.rotateX(90*deg);
257 G4Transform3D transform(rotm, G4ThreeVector( 257 G4Transform3D transform(rotm, G4ThreeVector(Xcenter,0.,0.));
258 new G4PVPlacement(transform, //ro 258 new G4PVPlacement(transform, //rotation+position
259 lvol_module, // 259 lvol_module, //logical volume
260 "module", // 260 "module", //name
261 lvol_calorimeter, 261 lvol_calorimeter, //mother
262 false, // 262 false, //no boulean operat
263 k+1); 263 k+1); //copy number
264 } 264 }
265 265
266 // world 266 // world
267 // 267 //
268 sizeX = 1.2*calorThickness; 268 sizeX = 1.2*calorThickness;
269 sizeY = 1.2*fiberLength; 269 sizeY = 1.2*fiberLength;
270 sizeZ = 1.2*fiberLength; 270 sizeZ = 1.2*fiberLength;
271 271
272 worldSizeX = sizeX; 272 worldSizeX = sizeX;
273 273
274 G4Box* 274 G4Box*
275 svol_world = new G4Box("world", //name 275 svol_world = new G4Box("world", //name
276 0.5*sizeX, 0.5*sizeY, 0.5*si 276 0.5*sizeX, 0.5*sizeY, 0.5*sizeZ); //size
277 277
278 lvol_world = new G4LogicalVolume(svol_world, 278 lvol_world = new G4LogicalVolume(svol_world, //solid
279 worldMat, 279 worldMat, //material
280 "world"); 280 "world"); //name
281 281
282 pvol_world = new G4PVPlacement(0, //no r 282 pvol_world = new G4PVPlacement(0, //no rotation
283 G4ThreeVector(), //at (0,0,0) 283 G4ThreeVector(), //at (0,0,0)
284 lvol_world, 284 lvol_world, //logical volume
285 "world", // 285 "world", //name
286 0, //moth 286 0, //mother volume
287 false, // 287 false, //no boolean operation
288 0); //co 288 0); //copy number
289 289
290 //put calorimeter in world 290 //put calorimeter in world
291 // 291 //
292 new G4PVPlacement(0, //no rotation 292 new G4PVPlacement(0, //no rotation
293 G4ThreeVector(), //at ( 293 G4ThreeVector(), //at (0,0,0)
294 lvol_calorimeter, //logi 294 lvol_calorimeter, //logical volume
295 "calorimeter", //name 295 "calorimeter", //name
296 lvol_world, //mother 296 lvol_world, //mother volume
297 false, //no boolean o 297 false, //no boolean operation
298 0); //copy number 298 0); //copy number
299 299
300 PrintCalorParameters(); 300 PrintCalorParameters();
301 301
302 // Visualization attributes 302 // Visualization attributes
303 // 303 //
304 lvol_fiber->SetVisAttributes (G4VisAttribute 304 lvol_fiber->SetVisAttributes (G4VisAttributes::GetInvisible());
305 lvol_layer->SetVisAttributes (G4VisAttribute 305 lvol_layer->SetVisAttributes (G4VisAttributes::GetInvisible());
306 lvol_world->SetVisAttributes (G4VisAttribute 306 lvol_world->SetVisAttributes (G4VisAttributes::GetInvisible());
307 307
308 //always return the physical World 308 //always return the physical World
309 // 309 //
310 return pvol_world; 310 return pvol_world;
311 } 311 }
312 312
313 //....oooOO0OOooo........oooOO0OOooo........oo 313 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
314 314
315 #include "G4UnitsTable.hh" 315 #include "G4UnitsTable.hh"
316 316
317 void DetectorConstruction::PrintCalorParameter 317 void DetectorConstruction::PrintCalorParameters()
318 { 318 {
319 G4cout << "\n------------------------------- 319 G4cout << "\n-------------------------------------------------------------"
320 << "\n ---> The calorimeter is " << nbOfM 320 << "\n ---> The calorimeter is " << nbOfModules << " Modules"
321 << "\n ---> A Module is " << nbOfLayers < 321 << "\n ---> A Module is " << nbOfLayers << " Layers + 1 milled Layer";
322 322
323 G4cout 323 G4cout
324 << "\n ---> A Layer is " << G4BestUnit(la 324 << "\n ---> A Layer is " << G4BestUnit(layerThickness,"Length")
325 << " thickness of " << absorberMat->GetNa 325 << " thickness of " << absorberMat->GetName();
326 326
327 G4cout 327 G4cout
328 << "\n ---> A Layer includes " << nbOfFib 328 << "\n ---> A Layer includes " << nbOfFibers << " fibers of "
329 << fiberMat->GetName(); 329 << fiberMat->GetName();
330 330
331 G4cout 331 G4cout
332 << "\n ---> diameter : " << G4BestUn 332 << "\n ---> diameter : " << G4BestUnit(fiberDiameter,"Length")
333 << "\n ---> length : " << G4BestUn 333 << "\n ---> length : " << G4BestUnit(fiberLength,"Length")
334 << "\n ---> distance : " << G4BestUn 334 << "\n ---> distance : " << G4BestUnit(distanceInterFibers,"Length");
335 335
336 G4cout 336 G4cout
337 << "\n ---> The milled Layer is " << G4Be 337 << "\n ---> The milled Layer is " << G4BestUnit(milledLayer,"Length")
338 << " thickness of " << absorberMat->GetNa 338 << " thickness of " << absorberMat->GetName();
339 339
340 G4cout 340 G4cout
341 << "\n\n ---> Module thickness " << G4BestU 341 << "\n\n ---> Module thickness " << G4BestUnit(moduleThickness,"Length");
342 342
343 G4cout 343 G4cout
344 << "\n\n ---> Total calor thickness " << G4 344 << "\n\n ---> Total calor thickness " << G4BestUnit(calorThickness,"Length")
345 << "\n Tranverse size " << G4 345 << "\n Tranverse size " << G4BestUnit(fiberLength,"Length");
346 346
347 G4cout << "\n------------------------------- 347 G4cout << "\n-------------------------------------------------------------\n";
348 G4cout << G4endl; 348 G4cout << G4endl;
349 } 349 }
350 350
351 //....oooOO0OOooo........oooOO0OOooo........oo 351 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
352 352
353 #include "G4GlobalMagFieldMessenger.hh" 353 #include "G4GlobalMagFieldMessenger.hh"
354 #include "G4AutoDelete.hh" 354 #include "G4AutoDelete.hh"
355 355
356 void DetectorConstruction::ConstructSDandField 356 void DetectorConstruction::ConstructSDandField()
357 { 357 {
358 if ( fFieldMessenger.Get() == 0 ) { 358 if ( fFieldMessenger.Get() == 0 ) {
359 // Create global magnetic field messen 359 // Create global magnetic field messenger.
360 // Uniform magnetic field is then crea 360 // Uniform magnetic field is then created automatically if
361 // the field value is not zero. 361 // the field value is not zero.
362 G4ThreeVector fieldValue = G4ThreeVect 362 G4ThreeVector fieldValue = G4ThreeVector();
363 G4GlobalMagFieldMessenger* msg = 363 G4GlobalMagFieldMessenger* msg =
364 new G4GlobalMagFieldMessenger(fieldVal 364 new G4GlobalMagFieldMessenger(fieldValue);
365 //msg->SetVerboseLevel(1); 365 //msg->SetVerboseLevel(1);
366 G4AutoDelete::Register(msg); 366 G4AutoDelete::Register(msg);
367 fFieldMessenger.Put( msg ); 367 fFieldMessenger.Put( msg );
368 368
369 } 369 }
370 } 370 }
371 371
372 //....oooOO0OOooo........oooOO0OOooo........oo 372 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
373 373