source: trunk/examples/extended/electromagnetic/TestEm15/src/DetectorConstruction.cc@ 1036

Last change on this file since 1036 was 807, checked in by garnier, 17 years ago

update
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25//
26// $Id: DetectorConstruction.cc,v 1.3 2006/06/29 16:46:47 gunter Exp $
27// GEANT4 tag $Name: $
28//
29//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
30//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31
32#include "DetectorConstruction.hh"
33#include "DetectorMessenger.hh"
34
35#include "G4Material.hh"
36#include "G4Box.hh"
37#include "G4LogicalVolume.hh"
38#include "G4PVPlacement.hh"
39
40#include "G4GeometryManager.hh"
41#include "G4PhysicalVolumeStore.hh"
42#include "G4LogicalVolumeStore.hh"
43#include "G4SolidStore.hh"
44
45#include "G4UnitsTable.hh"
46
47//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
48
49DetectorConstruction::DetectorConstruction()
50:pWorld(0), pBox(0), aMaterial(0)
51{
52 boxSize = 100*m; worldSize = 1.2*boxSize;
53 DefineMaterials();
54 SetMaterial("Water");
55 detectorMessenger = new DetectorMessenger(this);
56}
57
58//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
59
60DetectorConstruction::~DetectorConstruction()
61{ delete detectorMessenger;}
62
63//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64
65G4VPhysicalVolume* DetectorConstruction::Construct()
66{
67 return ConstructVolumes();
68}
69
70//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
71
72void 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* N = new G4Element("Nitrogen" ,"N" , z= 7., a= 14.01*g/mole);
81 G4Element* O = new G4Element("Oxygen" ,"O" , z= 8., a= 16.00*g/mole);
82 G4Element* Na = new G4Element("Sodium" ,"Na", z=11., a= 22.99*g/mole);
83 G4Element* Ge = new G4Element("Germanium","Ge", z=32., a= 72.59*g/mole);
84 G4Element* I = new G4Element("Iodine" ,"I" , z=53., a= 126.90*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 =
95 new G4Material("Air", density= 1.290*mg/cm3, ncomponents=2);
96 Air->AddElement(N, fractionmass=70.*perCent);
97 Air->AddElement(O, fractionmass=30.*perCent);
98
99 G4Material* H2l =
100 new G4Material("H2liquid", density= 70.8*mg/cm3, ncomponents=1);
101 H2l->AddElement(H, fractionmass=1.);
102
103 G4Material* H2O =
104 new G4Material("Water", density= 1.000*g/cm3, ncomponents=2);
105 H2O->AddElement(H, natoms=2);
106 H2O->AddElement(O, natoms=1);
107 H2O->SetChemicalFormula("H_2O");
108 H2O->GetIonisation()->SetMeanExcitationEnergy(75.0*eV);
109
110 new G4Material("liquidArgon", z=18., a= 39.95*g/mole, density= 1.390*g/cm3);
111
112 new G4Material("Carbon" , z=6., a= 12.01*g/mole, density= 2.267*g/cm3);
113
114 new G4Material("Aluminium" , z=13., a= 26.98*g/mole, density= 2.700*g/cm3);
115
116 new G4Material("Silicon" , z=14., a= 28.09*g/mole, density= 2.330*g/cm3);
117
118 new G4Material("Germanium" , z=32., a= 72.61*g/mole, density= 5.323*g/cm3);
119
120 G4Material* NaI =
121 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 =
127 new G4Material("Iodine", density= 4.93*g/cm3, ncomponents=1);
128 Iod->AddElement(I , natoms=1);
129
130 G4Material* BGO =
131 new G4Material("BGO", density= 7.10*g/cm3, ncomponents=3);
132 BGO->AddElement(O , natoms=12);
133 BGO->AddElement(Ge, natoms= 3);
134 BGO->AddElement(Bi, natoms= 4);
135
136 new G4Material("Iron" , z=26., a= 55.85*g/mole, density= 7.870*g/cm3);
137
138 new G4Material("Tungsten" , z=74., a=183.85*g/mole, density= 19.30*g/cm3);
139
140 new G4Material("Lead" , z=82., a=207.19*g/mole, density= 11.35*g/cm3);
141
142 new G4Material("Uranium" , z=92., a=238.03*g/mole, density= 18.95*g/cm3);
143
144 density = universe_mean_density; //from PhysicalConstants.h
145 G4double pressure = 3.e-18*pascal;
146 G4double temperature = 2.73*kelvin;
147 G4Material* vacuum =
148 new G4Material("Galactic",z= 1,a= 1.008*g/mole,density,
149 kStateGas,temperature,pressure);
150
151 G4cout << *(G4Material::GetMaterialTable()) << G4endl;
152
153 //default material
154 wMaterial = vacuum;
155}
156
157//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
158
159G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
160{
161 // Cleanup old geometry
162 G4GeometryManager::GetInstance()->OpenGeometry();
163 G4PhysicalVolumeStore::GetInstance()->Clean();
164 G4LogicalVolumeStore::GetInstance()->Clean();
165 G4SolidStore::GetInstance()->Clean();
166
167 // World
168 //
169 G4Box*
170 sWorld = new G4Box("World", //name
171 worldSize/2,worldSize/2,worldSize/2); //dimensions
172
173 G4LogicalVolume*
174 lWorld = new G4LogicalVolume(sWorld, //shape
175 wMaterial, //material
176 "World"); //name
177
178 pWorld = new G4PVPlacement(0, //no rotation
179 G4ThreeVector(), //at (0,0,0)
180 lWorld, //logical volume
181 "World", //name
182 0, //mother volume
183 false, //no boolean operation
184 0); //copy number
185
186 // Box
187 //
188 G4Box*
189 sBox = new G4Box("Container", //its name
190 boxSize/2,boxSize/2,boxSize/2); //its dimensions
191
192 G4LogicalVolume*
193 lBox = new G4LogicalVolume(sBox, //its shape
194 aMaterial, //its material
195 aMaterial->GetName()); //its name
196
197 pBox = new G4PVPlacement(0, //no rotation
198 G4ThreeVector(), //at (0,0,0)
199 lBox, //its logical volume
200 aMaterial->GetName(), //its name
201 lWorld, //its mother volume
202 false, //no boolean operation
203 0); //copy number
204
205 PrintParameters();
206
207 //always return the root volume
208 //
209 return pWorld;
210}
211
212//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
213
214void DetectorConstruction::PrintParameters()
215{
216 G4cout << "\n The Box is " << G4BestUnit(boxSize,"Length")
217 << " of " << aMaterial->GetName() << G4endl;
218}
219
220//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
221
222void DetectorConstruction::SetMaterial(G4String materialChoice)
223{
224 // search the material by its name
225 G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
226 if (pttoMaterial) {
227 aMaterial = pttoMaterial;
228 UpdateGeometry();
229 } else {
230 G4cout << "\n--> warning from DetectorConstruction::SetMaterial : "
231 << materialChoice << " not found" << G4endl;
232 }
233}
234
235//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
236
237void DetectorConstruction::SetSize(G4double value)
238{
239 boxSize = value; worldSize = 1.2*boxSize;
240 UpdateGeometry();
241}
242
243//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
244
245#include "G4RunManager.hh"
246
247void DetectorConstruction::UpdateGeometry()
248{
249 if (pWorld)
250 G4RunManager::GetRunManager()->DefineWorldVolume(ConstructVolumes());
251}
252
253//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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