| 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 /// \file electromagnetic/TestEm18/src/DetectorConstruction.cc
27 /// \brief Implementation of the DetectorConstruction class
28 //
29 //
30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32
33 #include "DetectorConstruction.hh"
34
35 #include "DetectorMessenger.hh"
36
37 #include "G4Box.hh"
38 #include "G4GeometryManager.hh"
39 #include "G4LogicalVolume.hh"
40 #include "G4LogicalVolumeStore.hh"
41 #include "G4Material.hh"
42 #include "G4NistManager.hh"
43 #include "G4PVPlacement.hh"
44 #include "G4PhysicalVolumeStore.hh"
45 #include "G4SolidStore.hh"
46 #include "G4SystemOfUnits.hh"
47 #include "G4UnitsTable.hh"
48
49 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
50
51 DetectorConstruction::DetectorConstruction()
52 {
53 fBoxSize = 1 * cm;
54 DefineMaterials();
55 SetMaterial("Water");
56 fDetectorMessenger = new DetectorMessenger(this);
57 }
58
59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
60
61 DetectorConstruction::~DetectorConstruction()
62 {
63 delete fDetectorMessenger;
64 }
65
66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
67
68 G4VPhysicalVolume* DetectorConstruction::Construct()
69 {
70 return ConstructVolumes();
71 }
72
73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
74
75 void DetectorConstruction::DefineMaterials()
76 {
77 //
78 // define Elements
79 //
80 G4double z, a;
81
82 G4Element* H = new G4Element("Hydrogen", "H", z = 1., a = 1.01 * g / mole);
83 G4Element* N = new G4Element("Nitrogen", "N", z = 7., a = 14.01 * g / mole);
84 G4Element* O = new G4Element("Oxygen", "O", z = 8., a = 16.00 * g / mole);
85
86 //
87 // define materials
88 //
89 G4double density;
90 G4int ncomponents, natoms;
91 G4double fractionmass;
92
93 G4Material* Air = new G4Material("Air", density = 1.290 * mg / cm3, ncomponents = 2);
94 Air->AddElement(N, fractionmass = 70. * perCent);
95 Air->AddElement(O, fractionmass = 30. * perCent);
96
97 G4Material* H2O = new G4Material("Water", density = 1.000 * g / cm3, ncomponents = 2);
98 H2O->AddElement(H, natoms = 2);
99 H2O->AddElement(O, natoms = 1);
100 H2O->GetIonisation()->SetMeanExcitationEnergy(78.0 * eV);
101
102 G4Material* vapor = new G4Material("Water_vapor", density = 1.000 * mg / cm3, ncomponents = 2);
103 vapor->AddElement(H, natoms = 2);
104 vapor->AddElement(O, natoms = 1);
105 vapor->GetIonisation()->SetMeanExcitationEnergy(78.0 * eV);
106
107 new G4Material("Carbon", z = 6., a = 12.01 * g / mole, density = 2.267 * g / cm3);
108 new G4Material("Aluminium", z = 13., a = 26.98 * g / mole, density = 2.700 * g / cm3);
109 new G4Material("Silicon", z = 14., a = 28.09 * g / mole, density = 2.330 * g / cm3);
110 new G4Material("liquidArgon", z = 18., a = 39.95 * g / mole, density = 1.390 * g / cm3);
111 new G4Material("Iron", z = 26., a = 55.85 * g / mole, density = 7.870 * g / cm3);
112 new G4Material("Germanium", z = 32., a = 72.61 * g / mole, density = 5.323 * g / cm3);
113 new G4Material("Tungsten", z = 74., a = 183.85 * g / mole, density = 19.30 * g / cm3);
114 new G4Material("Lead", z = 82., a = 207.19 * g / mole, density = 11.35 * g / cm3);
115
116 new G4Material("ArgonGas", z = 18., a = 39.948 * g / mole, density = 1.782 * mg / cm3, kStateGas,
117 273.15 * kelvin, 1 * atmosphere);
118
119 ////G4cout << *(G4Material::GetMaterialTable()) << G4endl;
120 }
121
122 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
123
124 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
125 {
126 // Cleanup old geometry
127 G4GeometryManager::GetInstance()->OpenGeometry();
128 G4PhysicalVolumeStore::GetInstance()->Clean();
129 G4LogicalVolumeStore::GetInstance()->Clean();
130 G4SolidStore::GetInstance()->Clean();
131
132 G4Box* sBox = new G4Box("Container", // its name
133 fBoxSize / 2, fBoxSize / 2, fBoxSize / 2); // its dimensions
134
135 fLBox = new G4LogicalVolume(sBox, // its shape
136 fMaterial, // its material
137 fMaterial->GetName()); // its name
138
139 fPBox = new G4PVPlacement(0, // no rotation
140 G4ThreeVector(), // at (0,0,0)
141 fLBox, // its logical volume
142 fMaterial->GetName(), // its name
143 0, // its mother volume
144 false, // no boolean operation
145 0); // copy number
146
147 PrintParameters();
148
149 // always return the root volume
150 //
151 return fPBox;
152 }
153
154 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
155
156 void DetectorConstruction::PrintParameters()
157 {
158 G4cout << "\n The Box is " << G4BestUnit(fBoxSize, "Length") << " of " << fMaterial->GetName()
159 << "\n " << fMaterial << G4endl;
160 }
161
162 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
163
164 void DetectorConstruction::SetMaterial(const G4String& name)
165 {
166 // search the material by its name
167 G4Material* mat = G4Material::GetMaterial(name, false);
168
169 // create the material by its name
170 if (!mat) {
171 mat = G4NistManager::Instance()->FindOrBuildMaterial(name);
172 }
173
174 if (mat && mat != fMaterial) {
175 G4cout << "### New material " << mat->GetName() << G4endl;
176 fMaterial = mat;
177 UpdateGeometry();
178 }
179
180 if (!mat) {
181 G4cout << "\n--> warning from DetectorConstruction::SetMaterial : " << name << " not found"
182 << G4endl;
183 }
184 }
185
186 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
187
188 void DetectorConstruction::SetSize(G4double value)
189 {
190 fBoxSize = value;
191 UpdateGeometry();
192 }
193
194 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
195
196 #include "G4RunManager.hh"
197
198 void DetectorConstruction::UpdateGeometry()
199 {
200 G4RunManager::GetRunManager()->GeometryHasBeenModified();
201 }
202
203 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
204