gflasha/src/ExGflashDetectorConstruction.cc

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0026 //
0027 /// \file ExGflashDetectorConstruction.cc
0028 /// \brief Implementation of the ExGflashDetectorConstruction class
0029 //
0030
0031 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0032 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0033
0034 // User Classes
0035 #include "ExGflashDetectorConstruction.hh"
0036
0037 #include "ExGflashHomoShowerTuning.hh"
0038 #include "ExGflashMessenger.hh"
0039 #include "ExGflashSensitiveDetector.hh"
0040
0041 // G4 Classes
0042 #include "G4AutoDelete.hh"
0043 #include "G4Box.hh"
0044 #include "G4Colour.hh"
0045 #include "G4LogicalVolume.hh"
0046 #include "G4Material.hh"
0047 #include "G4NistManager.hh"
0048 #include "G4PVPlacement.hh"
0049 #include "G4RunManager.hh"
0050 #include "G4SDManager.hh"
0051 #include "G4SystemOfUnits.hh"
0052 #include "G4ThreeVector.hh"
0053 #include "G4VPhysicalVolume.hh"
0054 #include "G4VisAttributes.hh"
0055 #include "globals.hh"
0056
0057 // fast simulation
0058 #include "GFlashHitMaker.hh"
0059 #include "GFlashHomoShowerParameterisation.hh"
0060 #include "GFlashParticleBounds.hh"
0061 #include "GFlashShowerModel.hh"
0062
0063 #include "G4FastSimulationManager.hh"
0064
0065 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0066
0067 const G4int kMaxBin = 500;
0068
0069 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0070
0071 ExGflashDetectorConstruction::ExGflashDetectorConstruction()
0072 {
0073   G4cout << "ExGflashDetectorConstruction::Detector constructor" << G4endl;
0074   fGflashMessenger = new ExGflashMessenger(this);
0075
0076   // Crystall
0077   fCrystalWidth = 3 * cm;
0078   fCrystalLength = 24 * cm;
0079 }
0080
0081 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0082
0083 ExGflashDetectorConstruction::~ExGflashDetectorConstruction()
0084 {
0085   delete fGflashMessenger;
0086   delete fFastShowerModel;
0087   delete fParameterisation;
0088   delete fParticleBounds;
0089   delete fHitMaker;
0090 }
0091
0092 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0093
0094 G4VPhysicalVolume* ExGflashDetectorConstruction::Construct()
0095 {
0096   //--------- Definitions of Solids, Logical Volumes, Physical Volumes ---------
0097   G4cout << "Defining the materials" << G4endl;
0098   // Get nist material manager
0099   G4NistManager* nistManager = G4NistManager::Instance();
0100   // Build materials
0101   G4Material* air = nistManager->FindOrBuildMaterial("G4_AIR");
0102   G4Material* pbWO4 = nistManager->FindOrBuildMaterial("G4_PbWO4");
0103
0104   fDetMat = pbWO4;
0105
0106   //------------------------------
0107   // Calorimeter segments
0108   //------------------------------
0109   // Simplified `CMS-like` PbWO4 crystal calorimeter
0110
0111   // Simplified `CMS-like` PbWO4 crystal calorimeter
0112
0113   // Calorimeter
0114   G4double calo_xside = (fCrystalWidth * fNbOfCrystals);
0115   G4double calo_yside = (fCrystalWidth * fNbOfCrystals);
0116   G4double calo_zside = fCrystalLength;
0117
0118   // The Experimental Hall
0119   G4double experimentalHall_x = calo_xside * 4;
0120   G4double experimentalHall_y = calo_yside * 4;
0121   G4double experimentalHall_z = calo_zside * 4;
0122
0123   G4VSolid* experimentalHall_box = new G4Box("expHall_box",  // World Volume
0124                                              experimentalHall_x,  // x size
0125                                              experimentalHall_y,  // y size
0126                                              experimentalHall_z);  // z size
0127
0128   auto experimentalHall_log = new G4LogicalVolume(experimentalHall_box, air, "expHall_log",
0129                                                   nullptr,  // opt: fieldManager
0130                                                   nullptr,  // opt: SensitiveDetector
0131                                                   nullptr);  // opt: UserLimits
0132   G4VPhysicalVolume* experimentalHall_phys =
0133     new G4PVPlacement(nullptr,
0134                       G4ThreeVector(),  // at (0,0,0)
0135                       "expHall", experimentalHall_log, nullptr, false, 0);
0136
0137   auto calo_box = new G4Box("Calorimeter",  // its name
0138                             calo_xside / 2.,  // size
0139                             calo_yside / 2., calo_zside / 2.);
0140   auto calo_log = new G4LogicalVolume(calo_box,  // its solid
0141                                       air,  // its material
0142                                       "calo_log",  // its name
0143                                       nullptr,  // opt: fieldManager
0144                                       nullptr,  // opt: SensitiveDetector
0145                                       nullptr);  // opt: UserLimit
0146
0147   G4double xpos = 0.0;
0148   G4double ypos = 0.0;
0149   G4double zpos = calo_zside / 2.;  // face @ z= 0.0
0150
0151   new G4PVPlacement(nullptr, G4ThreeVector(xpos, ypos, zpos), calo_log, "calorimeter",
0152                     experimentalHall_log, false, 1);
0153
0154   // Crystals
0155   G4VSolid* crystal_box = new G4Box("Crystal",  // its name
0156                                     fCrystalWidth / 2, fCrystalWidth / 2, fCrystalLength / 2);
0157   // size
0158   fCrystal_log = new G4LogicalVolume(crystal_box,  // its solid
0159                                      fDetMat,  // its material
0160                                      "Crystal_log");  // its name
0161
0162   for (G4int i = 0; i < fNbOfCrystals; i++) {
0163     for (G4int j = 0; j < fNbOfCrystals; j++) {
0164       G4int n = i * 10 + j;
0165       G4ThreeVector crystalPos((i * fCrystalWidth) - (calo_xside - fCrystalWidth) / 2.,
0166                                (j * fCrystalWidth) - (calo_yside - fCrystalWidth) / 2., 0);
0167       new G4PVPlacement(nullptr,  // no rotation
0168                         crystalPos,  // translation
0169                         fCrystal_log,
0170                         "crystal",  // its name
0171                         calo_log, false, n);
0172     }
0173   }
0174   G4cout << "There are " << fNbOfCrystals << " crystals per row in the calorimeter, so in total "
0175          << fNbOfCrystals * fNbOfCrystals << " crystals" << G4endl;
0176   G4cout << "Total Calorimeter size" << calo_xside / cm << " cm x " << calo_yside / cm << " cm x "
0177          << calo_zside / cm << " cm" << G4endl;
0178   G4cout << "They have width of  " << fCrystalWidth / cm << "  cm and a length of  "
0179          << fCrystalLength / cm << " cm. The Material is " << fDetMat
0180          << " Total: " << fCrystalLength / fDetMat->GetRadlen() << " X0" << G4endl;
0181
0182   experimentalHall_log->SetVisAttributes(G4VisAttributes::GetInvisible());
0183   auto caloVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 1.0));
0184   auto crystalVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 0.0));
0185   calo_log->SetVisAttributes(caloVisAtt);
0186   fCrystal_log->SetVisAttributes(crystalVisAtt);
0187
0188   // define the fParameterisation region
0189   G4cout << "\n ---> DetectorConstruction Region Definition" << G4endl;
0190   fRegion = new G4Region("crystals");
0191   calo_log->SetRegion(fRegion);
0192   fRegion->AddRootLogicalVolume(calo_log);
0193
0194   return experimentalHall_phys;
0195 }
0196
0197 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0198
0199 void ExGflashDetectorConstruction::ConstructSDandField()
0200 {
0201   // -- sensitive detectors:
0202
0203   G4SDManager* SDman = G4SDManager::GetSDMpointer();
0204
0205   auto SD = new ExGflashSensitiveDetector("Calorimeter", this);
0206
0207   SDman->AddNewDetector(SD);
0208   if (fCrystal_log != nullptr) {
0209     fCrystal_log->SetSensitiveDetector(SD);
0210   }
0211
0212   // -- fast simulation models:
0213   // **********************************************
0214   // * Initializing shower modell
0215   // ***********************************************
0216   G4cout << "\n--> Creating shower parameterization models" << G4endl;
0217   fFastShowerModel = new GFlashShowerModel("fFastShowerModel", fRegion);
0218   fParameterisation = new GFlashHomoShowerParameterisation(fDetMat, new ExGflashHomoShowerTuning());
0219   fFastShowerModel->SetParameterisation(*fParameterisation);
0220   // Energy Cuts to kill particles:
0221   fParticleBounds = new GFlashParticleBounds();
0222   fFastShowerModel->SetParticleBounds(*fParticleBounds);
0223   // Makes the EnergieSpots
0224   fHitMaker = new GFlashHitMaker();
0225   fFastShowerModel->SetHitMaker(*fHitMaker);
0226   G4cout << "end shower parameterization." << G4endl;
0227   // **********************************************
0228   // Get Rad Len and R molere ?
0229   fSDRadLen = fDetMat->GetRadlen();
0230 }
0231
0232 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0233
0234 void ExGflashDetectorConstruction::SetLBining(G4ThreeVector Value)
0235 {
0236   fNLtot = (G4int)Value(0);
0237   if (fNLtot > kMaxBin) {
0238     G4cout << "\n ---> warning from SetLBining: " << fNLtot << " truncated to " << kMaxBin
0239            << G4endl;
0240     fNLtot = kMaxBin;
0241   }
0242   fDLradl = Value(1);
0243 }
0244
0245 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0246
0247 void ExGflashDetectorConstruction::SetRBining(G4ThreeVector Value)
0248 {
0249   fNRtot = (G4int)Value(0);
0250   if (fNRtot > kMaxBin) {
0251     G4cout << "\n ---> warning from SetRBining: " << fNRtot << " truncated to " << kMaxBin
0252            << G4endl;
0253     fNRtot = kMaxBin;
0254   }
0255   fDRradl = Value(1);
0256 }
0257
0258 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0259
0260 void ExGflashDetectorConstruction::SetMaterial(G4String mat)
0261 {
0262   // search the material by its name
0263   G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(mat);
0264
0265   if (pttoMaterial != nullptr && fDetMat != pttoMaterial) {
0266     fDetMat = pttoMaterial;
0267     if (fCrystal_log != nullptr) {
0268       fCrystal_log->SetMaterial(fDetMat);
0269     }
0270     if (fParameterisation != nullptr) {
0271       fParameterisation->SetMaterial(fDetMat);
0272       fParameterisation->PrintMaterial(fDetMat);
0273       // Get Rad Len and R molere ?
0274       fSDRadLen = fDetMat->GetRadlen();
0275     }
0276     G4RunManager::GetRunManager()->PhysicsHasBeenModified();
0277   }
0278 }
0279
0280 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......