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25 //
26 /// \file electromagnetic/TestEm0/src/DetectorConstruction.cc
27 /// \brief Implementation of the DetectorConstruction class
28 //
29
30 //
31 //
32 //
33
34 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
35 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
36
37 #include "DetectorConstruction.hh"
38
39 #include "DetectorMessenger.hh"
40
41 #include "G4Box.hh"
42 #include "G4GeometryManager.hh"
43 #include "G4LogicalVolume.hh"
44 #include "G4LogicalVolumeStore.hh"
45 #include "G4Material.hh"
46 #include "G4NistManager.hh"
47 #include "G4PVPlacement.hh"
48 #include "G4PhysicalVolumeStore.hh"
49 #include "G4SolidStore.hh"
50 #include "G4SystemOfUnits.hh"
51 #include "G4UnitsTable.hh"
52
53 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
54
55 DetectorConstruction::DetectorConstruction()
56 {
57 fBoxSize = 1 * mm;
58 DefineMaterials();
59 SetMaterial("Germanium");
60 fDetectorMessenger = new DetectorMessenger(this);
61 }
62
63 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64
65 DetectorConstruction::~DetectorConstruction()
66 {
67 delete fDetectorMessenger;
68 }
69
70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
71
72 void DetectorConstruction::DefineMaterials()
73 {
74 //
75 // define Elements
76 //
77 G4double z, a;
78
79 G4Element* H = new G4Element("Hydrogen", "H", z = 1., a = 1.01 * g / mole);
80 G4Element* C = new G4Element("Carbon", "C", z = 6., a = 12.01 * g / mole);
81 G4Element* N = new G4Element("Nitrogen", "N", z = 7., a = 14.01 * g / mole);
82 G4Element* O = new G4Element("Oxygen", "O", z = 8., a = 16.00 * g / mole);
83 G4Element* Ge = new G4Element("Germanium", "Ge", z = 32., a = 72.59 * g / mole);
84 G4Element* Pb = new G4Element("Lead", "Pb", z = 82., a = 207.19 * g / mole);
85 G4Element* Bi = new G4Element("Bismuth", "Bi", z = 83., a = 208.98 * g / mole);
86
87 //
88 // define materials
89 //
90 G4double density;
91 G4int ncomponents, natoms;
92 G4double fractionmass;
93
94 G4Material* Air = new G4Material("Air", density = 1.290 * mg / cm3, ncomponents = 2);
95 Air->AddElement(N, fractionmass = 70. * perCent);
96 Air->AddElement(O, fractionmass = 30. * perCent);
97
98 G4Material* H2l = new G4Material("H2liquid", density = 70.8 * mg / cm3, ncomponents = 1);
99 H2l->AddElement(H, fractionmass = 1.);
100
101 G4Material* H2O = new G4Material("Water", density = 1.000 * g / cm3, ncomponents = 2);
102 H2O->AddElement(H, natoms = 2);
103 H2O->AddElement(O, natoms = 1);
104 /// H2O->SetChemicalFormula("H_2O");
105 H2O->GetIonisation()->SetMeanExcitationEnergy(78.0 * eV);
106
107 G4Material* steam = new G4Material("WaterSteam", density = 1.0 * mg / cm3, ncomponents = 1);
108 steam->AddMaterial(H2O, fractionmass = 1.);
109 steam->GetIonisation()->SetMeanExcitationEnergy(71.6 * eV);
110
111 G4Material* BGO = new G4Material("BGO", density = 7.10 * g / cm3, ncomponents = 3);
112 BGO->AddElement(O, natoms = 12);
113 BGO->AddElement(Ge, natoms = 3);
114 BGO->AddElement(Bi, natoms = 4);
115
116 new G4Material("Aluminium", z = 13., a = 26.98 * g / mole, density = 2.700 * g / cm3);
117 new G4Material("Silicon", z = 14., a = 28.09 * g / mole, density = 2.330 * g / cm3);
118 new G4Material("liquidArgon", z = 18., a = 39.95 * g / mole, density = 1.390 * g / cm3);
119 new G4Material("Iron", z = 26., a = 55.85 * g / mole, density = 7.870 * g / cm3);
120 new G4Material("Copper", z = 29., a = 63.55 * g / mole, density = 8.960 * g / cm3);
121 new G4Material("Germanium", z = 32., a = 72.61 * g / mole, density = 5.323 * g / cm3);
122 new G4Material("Silver", z = 47., a = 107.87 * g / mole, density = 10.50 * g / cm3);
123 new G4Material("Tungsten", z = 74., a = 183.85 * g / mole, density = 19.30 * g / cm3);
124 new G4Material("Lead", z = 82., a = 207.19 * g / mole, density = 11.35 * g / cm3);
125 new G4Material("Uranium", z = 92., a = 238.03 * g / mole, density = 18.95 * g / cm3);
126
127 G4Material* ams = new G4Material("ams", density = 7.409 * g / cm3, ncomponents = 3);
128 ams->AddElement(Pb, fractionmass = 94.81 * perCent);
129 ams->AddElement(C, fractionmass = 4.79 * perCent);
130 ams->AddElement(H, fractionmass = 0.40 * perCent);
131
132 G4Material* argonGas =
133 new G4Material("ArgonGas", z = 18, a = 39.948 * g / mole, density = 1.782 * mg / cm3, kStateGas,
134 273.15 * kelvin, 1 * atmosphere);
135
136 G4Material* butane = new G4Material("Isobutane", density = 2.42 * mg / cm3, ncomponents = 2,
137 kStateGas, 273.15 * kelvin, 1 * atmosphere);
138 butane->AddElement(C, natoms = 4);
139 butane->AddElement(H, natoms = 10);
140
141 G4Material* ArButane = new G4Material("ArgonButane", density = 1.835 * mg / cm3, ncomponents = 2,
142 kStateGas, 273.15 * kelvin, 1. * atmosphere);
143 ArButane->AddMaterial(argonGas, fractionmass = 70 * perCent);
144 ArButane->AddMaterial(butane, fractionmass = 30 * perCent);
145
146 /// exercise: Xenon gas
147 //
148 G4Element* Xe = new G4Element("Xenon", "Xe", z = 54., a = 131.29 * g / mole);
149
150 // XenonGas0 (NTP)
151 G4double temperature0 = 293.15 * kelvin;
152 G4double pressure0 = 1 * atmosphere;
153 G4double density0 = 2.953 * mg / cm3;
154 G4Material* matXe0 =
155 new G4Material("XenonGas0", density0, ncomponents = 1, kStateGas, temperature0, pressure0);
156 matXe0->AddElement(Xe, natoms = 1);
157
158 // XenonGas1
159 G4double temperature1 = 293.15 * kelvin;
160 G4double pressure1 = 50 * atmosphere;
161 G4double density1 = density0 * (pressure1 / pressure0) * (temperature0 / temperature1);
162 G4Material* matXe1 =
163 new G4Material("XenonGas1", density1, ncomponents = 1, kStateGas, temperature1, pressure1);
164 matXe1->AddElement(Xe, natoms = 1);
165
166 ////G4cout << *(G4Material::GetMaterialTable()) << G4endl;
167 }
168
169 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
170
171 G4VPhysicalVolume* DetectorConstruction::Construct()
172 {
173 // the geometry is created once
174 if (fBox) {
175 return fBox;
176 }
177
178 G4Box* sBox = new G4Box("Container", // its name
179 fBoxSize / 2, fBoxSize / 2, fBoxSize / 2); // its dimensions
180
181 G4LogicalVolume* lBox = new G4LogicalVolume(sBox, // its shape
182 fMaterial, // its material
183 fMaterial->GetName()); // its name
184
185 fBox = new G4PVPlacement(0, // no rotation
186 G4ThreeVector(0., 0., 0.), // at (0,0,0)
187 lBox, // its logical volume
188 fMaterial->GetName(), // its name
189 0, // its mother volume
190 false, // no boolean operation
191 0); // copy number
192
193 // always return the root volume
194 //
195 return fBox;
196 }
197
198 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
199
200 void DetectorConstruction::PrintParameters() const
201 {
202 G4cout << "\n The Box is " << G4BestUnit(fBoxSize, "Length") << " of " << fMaterial->GetName()
203 << G4endl;
204 }
205
206 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
207
208 #include "G4RunManager.hh"
209
210 void DetectorConstruction::SetMaterial(const G4String& materialChoice)
211 {
212 // search the material by its name, or build it from nist data base
213 G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
214
215 if (pttoMaterial) {
216 fMaterial = pttoMaterial;
217 if (fBox) {
218 fBox->GetLogicalVolume()->SetMaterial(fMaterial);
219 }
220 G4RunManager::GetRunManager()->PhysicsHasBeenModified();
221 G4cout << "\n " << fMaterial << G4endl;
222 }
223 else {
224 G4cout << "\n--> warning from DetectorConstruction::SetMaterial : " << materialChoice
225 << " not found" << G4endl;
226 }
227 }
228
229 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
230