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26 //
27 /// \file ExGflash3DetectorConstruction.cc
28 /// \brief Implementation of the ExGflash3DetectorConstruction class
29 //
30 // Created by Joanna Weng 26.11.2004
31
32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
33 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
34
35 // User Classes
36 #include "ExGflash3DetectorConstruction.hh"
37
38 // G4 Classes
39 #include "G4AutoDelete.hh"
40 #include "G4Box.hh"
41 #include "G4Colour.hh"
42 #include "G4LogicalVolume.hh"
43 #include "G4Material.hh"
44 #include "G4NistManager.hh"
45 #include "G4PVPlacement.hh"
46 #include "G4SDManager.hh"
47 #include "G4SystemOfUnits.hh"
48 #include "G4ThreeVector.hh"
49 #include "G4VPhysicalVolume.hh"
50 #include "G4VisAttributes.hh"
51 #include "globals.hh"
52
53 // fast simulation
54 #include "GFlashHitMaker.hh"
55 #include "GFlashHomoShowerParameterisation.hh"
56 #include "GFlashParticleBounds.hh"
57 #include "GFlashShowerModel.hh"
58
59 #include "G4FastSimulationManager.hh"
60
61 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
62
63 ExGflash3DetectorConstruction::ExGflash3DetectorConstruction()
64 {
65 G4cout << "ExGflash3DetectorConstruction::Detector constructor" << G4endl;
66 }
67
68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
69
70 ExGflash3DetectorConstruction::~ExGflash3DetectorConstruction()
71 {
72 delete fFastShowerModel;
73 delete fParameterisation;
74 delete fParticleBounds;
75 delete fHitMaker;
76 }
77
78 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
79
80 G4VPhysicalVolume* ExGflash3DetectorConstruction::Construct()
81 {
82 //--------- Definitions of Solids, Logical Volumes, Physical Volumes ---------
83 G4cout << "Defining the materials" << G4endl;
84 // Get nist material manager
85 G4NistManager* nistManager = G4NistManager::Instance();
86 // Build materials
87 G4Material* air = nistManager->FindOrBuildMaterial("G4_AIR");
88 G4Material* pbWO4 = nistManager->FindOrBuildMaterial("G4_PbWO4");
89
90 /*******************************
91 * The Experimental Hall *
92 *******************************/
93 G4double experimentalHall_x = 1000. * cm;
94 G4double experimentalHall_y = 1000. * cm;
95 G4double experimentalHall_z = 1000. * cm;
96
97 G4VSolid* experimentalHall_box = new G4Box("expHall_box", // World Volume
98 experimentalHall_x, // x size
99 experimentalHall_y, // y size
100 experimentalHall_z); // z size
101
102 auto experimentalHallLog = new G4LogicalVolume(experimentalHall_box, air, "expHallLog",
103 nullptr, // opt: fieldManager
104 nullptr, // opt: SensitiveDetector
105 nullptr); // opt: UserLimits
106 G4VPhysicalVolume* experimentalHall_phys =
107 new G4PVPlacement(nullptr,
108 G4ThreeVector(), // at (0,0,0)
109 "expHall", experimentalHallLog, nullptr, false, 0);
110
111 //------------------------------
112 // Calorimeter segments
113 //------------------------------
114 // Simplified `CMS-like` PbWO4 crystal calorimeter
115
116 G4int nbOfCrystals = 10; // this are the crystals PER ROW in this example
117 // cube of 10 x 10 crystals
118 // don't change it @the moment, since
119 // the readout in event action assumes this
120 // dimensions and is not automatically adapted
121 // in this version of the example :-(
122 // Simplified `CMS-like` PbWO4 crystal calorimeter
123 G4double calo_xside = 31 * cm;
124 G4double calo_yside = 31 * cm;
125 G4double calo_zside = 24 * cm;
126
127 G4double crystalWidth = 3 * cm;
128 G4double crystalLength = 24 * cm;
129
130 calo_xside = (crystalWidth * nbOfCrystals) + 1 * cm;
131 calo_yside = (crystalWidth * nbOfCrystals) + 1 * cm;
132 calo_zside = crystalLength;
133
134 auto calo_box = new G4Box("CMS calorimeter", // its name
135 calo_xside / 2., // size
136 calo_yside / 2., calo_zside / 2.);
137 auto caloLog = new G4LogicalVolume(calo_box, // its solid
138 pbWO4, // its material
139 "calo log", // its name
140 nullptr, // opt: fieldManager
141 nullptr, // opt: SensitiveDetector
142 nullptr); // opt: UserLimit
143
144 G4double xpos = 0.0;
145 G4double ypos = 0.0;
146 G4double zpos = 100.0 * cm;
147 new G4PVPlacement(nullptr, G4ThreeVector(xpos, ypos, zpos), caloLog, "calorimeter",
148 experimentalHallLog, false, 1);
149
150 // Individual crystals are created as part of the readout geometry in the parallel world
151
152 experimentalHallLog->SetVisAttributes(G4VisAttributes::GetInvisible());
153 auto caloVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 1.0));
154 caloLog->SetVisAttributes(caloVisAtt);
155
156 // define the fParameterisation region
157 fRegion = new G4Region("crystals");
158 caloLog->SetRegion(fRegion);
159 fRegion->AddRootLogicalVolume(caloLog);
160
161 return experimentalHall_phys;
162 }
163
164 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
165
166 void ExGflash3DetectorConstruction::ConstructSDandField()
167 {
168 // SD moved to parallel world
169
170 // -- fast simulation models:
171 // **********************************************
172 // * Initializing shower modell
173 // ***********************************************
174 G4cout << "Creating shower parameterization models" << G4endl;
175 fFastShowerModel = new GFlashShowerModel("fFastShowerModel", fRegion);
176 fParameterisation = new GFlashHomoShowerParameterisation(fRegion->GetMaterialIterator()[0]);
177 fFastShowerModel->SetParameterisation(*fParameterisation);
178 // Energy Cuts to kill particles:
179 fParticleBounds = new GFlashParticleBounds();
180 fFastShowerModel->SetParticleBounds(*fParticleBounds);
181 // Makes the EnergieSpots
182 fHitMaker = new GFlashHitMaker();
183 // Important: use SD defined in different geometry
184 fHitMaker->SetNameOfWorldWithSD("parallelWorld");
185 fFastShowerModel->SetHitMaker(*fHitMaker);
186 G4cout << "end shower parameterization." << G4endl;
187 // **********************************************
188 }
189
190 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
191