| Geant4 Cross Reference |
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 /// \file ExGflash1DetectorConstruction.cc
28 /// \brief Implementation of the ExGflash1DetectorConstruction 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 "ExGflash1DetectorConstruction.hh"
37
38 #include "ExGflash1SensitiveDetector.hh"
39
40 // G4 Classes
41 #include "G4AutoDelete.hh"
42 #include "G4Box.hh"
43 #include "G4Colour.hh"
44 #include "G4LogicalVolume.hh"
45 #include "G4Material.hh"
46 #include "G4NistManager.hh"
47 #include "G4PVPlacement.hh"
48 #include "G4SDManager.hh"
49 #include "G4SystemOfUnits.hh"
50 #include "G4ThreeVector.hh"
51 #include "G4VPhysicalVolume.hh"
52 #include "G4VisAttributes.hh"
53 #include "globals.hh"
54
55 // fast simulation
56 #include "GFlashHitMaker.hh"
57 #include "GFlashHomoShowerParameterisation.hh"
58 #include "GFlashParticleBounds.hh"
59 #include "GFlashShowerModel.hh"
60
61 #include "G4FastSimulationManager.hh"
62
63 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64
65 ExGflash1DetectorConstruction::ExGflash1DetectorConstruction()
66 {
67 G4cout << "ExGflash1DetectorConstruction::Detector constructor" << G4endl;
68 }
69
70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
71
72 ExGflash1DetectorConstruction::~ExGflash1DetectorConstruction()
73 {
74 delete fFastShowerModel;
75 delete fParameterisation;
76 delete fParticleBounds;
77 delete fHitMaker;
78 }
79
80 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
81
82 G4VPhysicalVolume* ExGflash1DetectorConstruction::Construct()
83 {
84 //--------- Definitions of Solids, Logical Volumes, Physical Volumes ---------
85 G4cout << "Defining the materials" << G4endl;
86 // Get nist material manager
87 G4NistManager* nistManager = G4NistManager::Instance();
88 // Build materials
89 G4Material* air = nistManager->FindOrBuildMaterial("G4_AIR");
90 G4Material* pbWO4 = nistManager->FindOrBuildMaterial("G4_PbWO4");
91
92 /*******************************
93 * The Experimental Hall *
94 *******************************/
95 G4double experimentalHall_x = 1000. * cm;
96 G4double experimentalHall_y = 1000. * cm;
97 G4double experimentalHall_z = 1000. * cm;
98
99 G4VSolid* experimentalHall_box = new G4Box("expHall_box", // World Volume
100 experimentalHall_x, // x size
101 experimentalHall_y, // y size
102 experimentalHall_z); // z size
103
104 auto experimentalHallLog = new G4LogicalVolume(experimentalHall_box, air, "expHallLog",
105 nullptr, // opt: fieldManager
106 nullptr, // opt: SensitiveDetector
107 nullptr); // opt: UserLimits
108 G4VPhysicalVolume* experimentalHallPhys =
109 new G4PVPlacement(nullptr,
110 G4ThreeVector(), // at (0,0,0)
111 "expHall", experimentalHallLog, nullptr, false, 0);
112
113 //------------------------------
114 // Calorimeter segments
115 //------------------------------
116 // Simplified `CMS-like` PbWO4 crystal calorimeter
117
118 G4int nbOfCrystals = 10; // this are the crystals PER ROW in this example
119 // cube of 10 x 10 crystals
120 // don't change it @the moment, since
121 // the readout in event action assumes this
122 // dimensions and is not automatically adapted
123 // in this version of the example :-(
124 // Simplified `CMS-like` PbWO4 crystal calorimeter
125 G4double calo_xside = 31 * cm;
126 G4double calo_yside = 31 * cm;
127 G4double calo_zside = 24 * cm;
128
129 G4double crystalWidth = 3 * cm;
130 G4double crystalLength = 24 * cm;
131
132 calo_xside = (crystalWidth * nbOfCrystals) + 1 * cm;
133 calo_yside = (crystalWidth * nbOfCrystals) + 1 * cm;
134 calo_zside = crystalLength;
135
136 auto calo_box = new G4Box("CMS calorimeter", // its name
137 calo_xside / 2., // size
138 calo_yside / 2., calo_zside / 2.);
139 auto caloLog = new G4LogicalVolume(calo_box, // its solid
140 air, // its material
141 "calo log", // its name
142 nullptr, // opt: fieldManager
143 nullptr, // opt: SensitiveDetector
144 nullptr); // opt: UserLimit
145
146 G4double xpos = 0.0;
147 G4double ypos = 0.0;
148 G4double zpos = 100.0 * cm;
149 new G4PVPlacement(nullptr, G4ThreeVector(xpos, ypos, zpos), caloLog, "calorimeter",
150 experimentalHallLog, false, 1);
151
152 // Crystals
153 G4VSolid* crystal_box = new G4Box("Crystal", // its name
154 crystalWidth / 2, crystalWidth / 2, crystalLength / 2);
155 // size
156 fCrystalLog = new G4LogicalVolume(crystal_box, // its solid
157 pbWO4, // its material
158 "CrystalLog"); // its name
159
160 for (G4int i = 0; i < nbOfCrystals; i++) {
161 for (G4int j = 0; j < nbOfCrystals; j++) {
162 G4int n = i * 10 + j;
163 G4ThreeVector crystalPos((i * crystalWidth) - 135, (j * crystalWidth) - 135, 0);
164 fCrystalPhys[n] = new G4PVPlacement(nullptr, // no rotation
165 crystalPos, // translation
166 fCrystalLog,
167 "crystal", // its name
168 caloLog, false, i);
169 }
170 }
171 G4cout << "There are " << nbOfCrystals << " crystals per row in the calorimeter, so in total "
172 << nbOfCrystals * nbOfCrystals << " crystals" << G4endl;
173 G4cout << "They have width of " << crystalWidth / cm << " cm and a length of "
174 << crystalLength / cm << " cm. The Material is " << pbWO4 << G4endl;
175
176 experimentalHallLog->SetVisAttributes(G4VisAttributes::GetInvisible());
177 auto caloVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 1.0));
178 auto crystalVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 0.0));
179 caloLog->SetVisAttributes(caloVisAtt);
180 fCrystalLog->SetVisAttributes(crystalVisAtt);
181
182 // define the fParameterisation region
183 fRegion = new G4Region("crystals");
184 caloLog->SetRegion(fRegion);
185 fRegion->AddRootLogicalVolume(caloLog);
186
187 return experimentalHallPhys;
188 }
189
190 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
191
192 void ExGflash1DetectorConstruction::ConstructSDandField()
193 {
194 // -- sensitive detectors:
195 G4SDManager* SDman = G4SDManager::GetSDMpointer();
196 auto CaloSD = new ExGflash1SensitiveDetector("Calorimeter", this);
197 SDman->AddNewDetector(CaloSD);
198 fCrystalLog->SetSensitiveDetector(CaloSD);
199
200 // Get nist material manager
201 G4NistManager* nistManager = G4NistManager::Instance();
202 G4Material* pbWO4 = nistManager->FindOrBuildMaterial("G4_PbWO4");
203 // -- fast simulation models:
204 // **********************************************
205 // * Initializing shower modell
206 // ***********************************************
207 G4cout << "Creating shower parameterization models" << G4endl;
208 fFastShowerModel = new GFlashShowerModel("fFastShowerModel", fRegion);
209 fParameterisation = new GFlashHomoShowerParameterisation(pbWO4);
210 fFastShowerModel->SetParameterisation(*fParameterisation);
211 // Energy Cuts to kill particles:
212 fParticleBounds = new GFlashParticleBounds();
213 fFastShowerModel->SetParticleBounds(*fParticleBounds);
214 // Makes the EnergieSpots
215 fHitMaker = new GFlashHitMaker();
216 fFastShowerModel->SetHitMaker(*fHitMaker);
217 G4cout << "end shower parameterization." << G4endl;
218 // **********************************************
219 }
220
221 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
222