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25 //
26 /// \file electromagnetic/TestEm13/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 "G4RunManager.hh"
46 #include "G4SolidStore.hh"
47 #include "G4SystemOfUnits.hh"
48 #include "G4UnitsTable.hh"
49
50 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
51
52 DetectorConstruction::DetectorConstruction()
53 {
54 fBoxSize = 1 * cm;
55 DefineMaterials();
56 SetMaterial("Water");
57 fDetectorMessenger = new DetectorMessenger(this);
58 }
59
60 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
61
62 DetectorConstruction::~DetectorConstruction()
63 {
64 delete fDetectorMessenger;
65 }
66
67 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
68
69 G4VPhysicalVolume* DetectorConstruction::Construct()
70 {
71 return ConstructVolumes();
72 }
73
74 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
75
76 void DetectorConstruction::DefineMaterials()
77 {
78 //
79 // define Elements
80 //
81 G4double z, a;
82
83 G4Element* H = new G4Element("Hydrogen", "H", z = 1., a = 1.01 * g / mole);
84 G4Element* N = new G4Element("Nitrogen", "N", z = 7., a = 14.01 * g / mole);
85 G4Element* O = new G4Element("Oxygen", "O", z = 8., a = 16.00 * g / mole);
86 G4Element* Na = new G4Element("Sodium", "Na", z = 11., a = 22.99 * g / mole);
87 G4Element* Ge = new G4Element("Germanium", "Ge", z = 32., a = 72.59 * g / mole);
88 G4Element* I = new G4Element("Iodine", "I", z = 53., a = 126.90 * g / mole);
89 G4Element* Bi = new G4Element("Bismuth", "Bi", z = 83., a = 208.98 * g / mole);
90
91 //
92 // define materials
93 //
94 G4double density;
95 G4int ncomponents, natoms;
96 G4double fractionmass;
97
98 G4Material* Air = new G4Material("Air", density = 1.290 * mg / cm3, ncomponents = 2);
99 Air->AddElement(N, fractionmass = 70. * perCent);
100 Air->AddElement(O, fractionmass = 30. * perCent);
101
102 G4Material* H2l = new G4Material("H2liquid", density = 70.8 * mg / cm3, ncomponents = 1);
103 H2l->AddElement(H, fractionmass = 1.);
104
105 G4Material* H2O = new G4Material("Water", density = 1.000 * g / cm3, ncomponents = 2);
106 H2O->AddElement(H, natoms = 2);
107 H2O->AddElement(O, natoms = 1);
108 H2O->SetChemicalFormula("H_2O");
109 H2O->GetIonisation()->SetMeanExcitationEnergy(78.0 * eV);
110
111 new G4Material("liquidArgon", z = 18., a = 39.95 * g / mole, density = 1.390 * g / cm3);
112
113 new G4Material("Carbon", z = 6., a = 12.01 * g / mole, density = 2.267 * g / cm3);
114
115 new G4Material("Aluminium", z = 13., a = 26.98 * g / mole, density = 2.700 * g / cm3);
116
117 new G4Material("Silicon", z = 14., a = 28.09 * g / mole, density = 2.330 * g / cm3);
118
119 new G4Material("Germanium", z = 32., a = 72.61 * g / mole, density = 5.323 * g / cm3);
120
121 G4Material* NaI = new G4Material("NaI", density = 3.67 * g / cm3, ncomponents = 2);
122 NaI->AddElement(Na, natoms = 1);
123 NaI->AddElement(I, natoms = 1);
124 NaI->GetIonisation()->SetMeanExcitationEnergy(452 * eV);
125
126 G4Material* Iod = new G4Material("Iodine", density = 4.93 * g / cm3, ncomponents = 1);
127 Iod->AddElement(I, natoms = 1);
128
129 G4Material* BGO = new G4Material("BGO", density = 7.10 * g / cm3, ncomponents = 3);
130 BGO->AddElement(O, natoms = 12);
131 BGO->AddElement(Ge, natoms = 3);
132 BGO->AddElement(Bi, natoms = 4);
133
134 new G4Material("Iron", z = 26., a = 55.85 * g / mole, density = 7.870 * g / cm3);
135
136 new G4Material("Tungsten", z = 74., a = 183.85 * g / mole, density = 19.30 * g / cm3);
137
138 new G4Material("Lead", z = 82., a = 207.19 * g / mole, density = 11.35 * g / cm3);
139
140 new G4Material("Uranium", z = 92., a = 238.03 * g / mole, density = 18.95 * g / cm3);
141
142 /// G4cout << *(G4Material::GetMaterialTable()) << G4endl;
143 }
144
145 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
146
147 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
148 {
149 // Cleanup old geometry
150 G4GeometryManager::GetInstance()->OpenGeometry();
151 G4PhysicalVolumeStore::GetInstance()->Clean();
152 G4LogicalVolumeStore::GetInstance()->Clean();
153 G4SolidStore::GetInstance()->Clean();
154
155 G4Box* sBox = new G4Box("Container", // its name
156 fBoxSize / 2, fBoxSize / 2, fBoxSize / 2); // its dimensions
157
158 fLBox = new G4LogicalVolume(sBox, // its shape
159 fMaterial, // its material
160 fMaterial->GetName()); // its name
161
162 fPBox = new G4PVPlacement(0, // no rotation
163 G4ThreeVector(), // at (0,0,0)
164 fLBox, // its logical volume
165 fMaterial->GetName(), // its name
166 0, // its mother volume
167 false, // no boolean operation
168 0); // copy number
169
170 PrintParameters();
171
172 // always return the root volume
173 //
174 return fPBox;
175 }
176
177 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
178
179 void DetectorConstruction::PrintParameters()
180 {
181 G4cout << "\n The Box is " << G4BestUnit(fBoxSize, "Length") << " of " << fMaterial->GetName()
182 << G4endl;
183 G4cout << "\n" << fMaterial << G4endl;
184 }
185
186 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
187
188 void DetectorConstruction::SetMaterial(G4String materialChoice)
189 {
190 // search the material by its name, or build it from nist data base
191 G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
192
193 if (pttoMaterial) {
194 fMaterial = pttoMaterial;
195 G4RunManager::GetRunManager()->PhysicsHasBeenModified();
196 }
197 else {
198 G4cout << "\n--> warning from DetectorConstruction::SetMaterial : " << materialChoice
199 << " not found" << G4endl;
200 }
201 }
202
203 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
204
205 void DetectorConstruction::SetSize(G4double value)
206 {
207 fBoxSize = value;
208 G4RunManager::GetRunManager()->ReinitializeGeometry();
209 }
210
211 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
212