source: trunk/examples/extended/electromagnetic/TestEm1/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
27//
28// $Id: DetectorConstruction.cc,v 1.8 2007/11/12 15:48:58 maire Exp $
29// GEANT4 tag $Name: $
30//
31//
32
33//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
34//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
35
36#include "DetectorConstruction.hh"
37#include "DetectorMessenger.hh"
38
39#include "G4Material.hh"
40#include "G4Box.hh"
41#include "G4LogicalVolume.hh"
42#include "G4PVPlacement.hh"
43#include "G4UniformMagField.hh"
44
45#include "G4GeometryManager.hh"
46#include "G4PhysicalVolumeStore.hh"
47#include "G4LogicalVolumeStore.hh"
48#include "G4SolidStore.hh"
49
50#include "G4UnitsTable.hh"
51
52//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
53
54DetectorConstruction::DetectorConstruction()
55:pBox(0), lBox(0), aMaterial(0), magField(0)
56{
57 BoxSize = 10*m;
58 DefineMaterials();
59 SetMaterial("Aluminium");
60 detectorMessenger = new DetectorMessenger(this);
61}
62
63//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64
65DetectorConstruction::~DetectorConstruction()
66{ delete detectorMessenger;}
67
68//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
69
70G4VPhysicalVolume* DetectorConstruction::Construct()
71{
72 return ConstructVolumes();
73}
74
75//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
76
77void DetectorConstruction::DefineMaterials()
78{
79 //
80 // define Elements
81 //
82 G4double z,a;
83
84 G4Element* H = new G4Element("Hydrogen" ,"H" , z= 1., a= 1.01*g/mole);
85 G4Element* C = new G4Element("Hydrogen" ,"C" , z= 6., a= 12.00*g/mole);
86 G4Element* N = new G4Element("Nitrogen" ,"N" , z= 7., a= 14.01*g/mole);
87 G4Element* O = new G4Element("Oxygen" ,"O" , z= 8., a= 16.00*g/mole);
88 G4Element* Ge = new G4Element("Germanium","Ge", z=32., a= 72.59*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 =
99 new G4Material("Air", density= 1.290*mg/cm3, ncomponents=2);
100 Air->AddElement(N, fractionmass=70.*perCent);
101 Air->AddElement(O, fractionmass=30.*perCent);
102
103 G4Material* H2l =
104 new G4Material("H2liquid", density= 70.8*mg/cm3, ncomponents=1);
105 H2l->AddElement(H, fractionmass=1.);
106
107 G4Material* H2O =
108 new G4Material("Water", density= 1.000*g/cm3, ncomponents=2);
109 H2O->AddElement(H, natoms=2);
110 H2O->AddElement(O, natoms=1);
111 ///H2O->SetChemicalFormula("H_2O");
112 H2O->GetIonisation()->SetMeanExcitationEnergy(75.0*eV);
113
114 density = 0.001*mg/cm3;
115 G4Material* CO2 = new G4Material("CO2", density, ncomponents=2);
116 CO2->AddElement(C, natoms=1);
117 CO2->AddElement(O, natoms=2);
118
119 new G4Material("D2_gas", z=2., a= 2.0141*g/mole, density= 0.036*mg/cm3);
120
121 new G4Material("liquidArgon", z=18., a= 39.95*g/mole, density= 1.390*g/cm3);
122
123 new G4Material("Aluminium" , z=13., a= 26.98*g/mole, density= 2.700*g/cm3);
124
125 new G4Material("Silicon" , z=14., a= 28.09*g/mole, density= 2.330*g/cm3);
126
127 new G4Material("Germanium" , z=32., a= 72.61*g/mole, density= 5.323*g/cm3);
128
129 G4Material* BGO =
130 new G4Material("BGO", density= 7.10*g/cm3, ncomponents=3);
131 BGO->AddElement(O , natoms=12);
132 BGO->AddElement(Ge, natoms= 3);
133 BGO->AddElement(Bi, natoms= 4);
134
135 new G4Material("Iron" , z=26., a= 55.85*g/mole, density= 7.870*g/cm3);
136
137 new G4Material("Tungsten" , z=74., a=183.85*g/mole, density= 19.30*g/cm3);
138
139 new G4Material("Lead" , z=82., a=207.19*g/mole, density= 11.35*g/cm3);
140
141 new G4Material("Uranium" , z=92., a=238.03*g/mole, density= 18.95*g/cm3);
142
143
144 G4cout << *(G4Material::GetMaterialTable()) << G4endl;
145}
146
147//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
148
149G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
150{
151 // Cleanup old geometry
152 G4GeometryManager::GetInstance()->OpenGeometry();
153 G4PhysicalVolumeStore::GetInstance()->Clean();
154 G4LogicalVolumeStore::GetInstance()->Clean();
155 G4SolidStore::GetInstance()->Clean();
156
157 G4Box*
158 sBox = new G4Box("Container", //its name
159 BoxSize/2,BoxSize/2,BoxSize/2); //its dimensions
160
161 lBox = new G4LogicalVolume(sBox, //its shape
162 aMaterial, //its material
163 aMaterial->GetName()); //its name
164
165 pBox = new G4PVPlacement(0, //no rotation
166 G4ThreeVector(), //at (0,0,0)
167 lBox, //its logical volume
168 aMaterial->GetName(), //its name
169 0, //its mother volume
170 false, //no boolean operation
171 0); //copy number
172
173 PrintParameters();
174
175 //always return the root volume
176 //
177 return pBox;
178}
179
180//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
181
182void DetectorConstruction::PrintParameters()
183{
184 G4cout << "\n The Box is " << G4BestUnit(BoxSize,"Length")
185 << " of " << aMaterial->GetName() << G4endl;
186}
187
188//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
189
190void DetectorConstruction::SetMaterial(G4String materialChoice)
191{
192 // search the material by its name
193 G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
194 if (pttoMaterial) aMaterial = pttoMaterial;
195}
196
197//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
198
199void DetectorConstruction::SetSize(G4double value)
200{
201 BoxSize = value;
202}
203
204//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
205
206#include "G4FieldManager.hh"
207#include "G4TransportationManager.hh"
208
209void DetectorConstruction::SetMagField(G4double fieldValue)
210{
211 //apply a global uniform magnetic field along Z axis
212 G4FieldManager* fieldMgr
213 = G4TransportationManager::GetTransportationManager()->GetFieldManager();
214
215 if (magField) delete magField; //delete the existing magn field
216
217 if (fieldValue!=0.) // create a new one if non nul
218 {
219 magField = new G4UniformMagField(G4ThreeVector(0.,0.,fieldValue));
220 fieldMgr->SetDetectorField(magField);
221 fieldMgr->CreateChordFinder(magField);
222 }
223 else
224 {
225 magField = 0;
226 fieldMgr->SetDetectorField(magField);
227 }
228}
229
230//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
231
232#include "G4RunManager.hh"
233
234void DetectorConstruction::UpdateGeometry()
235{
236 G4RunManager::GetRunManager()->DefineWorldVolume(ConstructVolumes());
237}
238
239//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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