source: trunk/examples/extended/electromagnetic/TestEm18/src/DetectorConstruction.cc@ 1230

Last change on this file since 1230 was 1230, checked in by garnier, 16 years ago

update to geant4.9.3
File size: 7.0 KB
Line 
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25//
26// $Id: DetectorConstruction.cc,v 1.3 2009/03/06 18:24:07 maire Exp $
27// GEANT4 tag $Name: geant4-09-03-cand-01 $
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:pBox(0), lBox(0), aMaterial(0)
51{
52 BoxSize = 1*cm;
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
83 //
84 // define materials
85 //
86 G4double density;
87 G4int ncomponents, natoms;
88 G4double fractionmass;
89
90 G4Material* Air =
91 new G4Material("Air", density= 1.290*mg/cm3, ncomponents=2);
92 Air->AddElement(N, fractionmass=70.*perCent);
93 Air->AddElement(O, fractionmass=30.*perCent);
94
95 G4Material* H2O =
96 new G4Material("Water", density= 1.000*g/cm3, ncomponents=2);
97 H2O->AddElement(H, natoms=2);
98 H2O->AddElement(O, natoms=1);
99 H2O->GetIonisation()->SetMeanExcitationEnergy(75.0*eV);
100
101 G4Material* vapor =
102 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(75.0*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,
117 kStateGas, 273.15*kelvin, 1*atmosphere);
118
119 G4cout << *(G4Material::GetMaterialTable()) << G4endl;
120}
121
122//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
123
124G4VPhysicalVolume* 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*
133 sBox = new G4Box("Container", //its name
134 BoxSize/2,BoxSize/2,BoxSize/2); //its dimensions
135
136 lBox = new G4LogicalVolume(sBox, //its shape
137 aMaterial, //its material
138 aMaterial->GetName()); //its name
139
140 pBox = new G4PVPlacement(0, //no rotation
141 G4ThreeVector(), //at (0,0,0)
142 lBox, //its logical volume
143 aMaterial->GetName(), //its name
144 0, //its mother volume
145 false, //no boolean operation
146 0); //copy number
147
148 PrintParameters();
149
150 //always return the root volume
151 //
152 return pBox;
153}
154
155//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
156
157void DetectorConstruction::PrintParameters()
158{
159 G4cout << "\n The Box is " << G4BestUnit(BoxSize,"Length")
160 << " of " << aMaterial->GetName() << G4endl;
161}
162
163//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
164
165void DetectorConstruction::SetMaterial(G4String materialChoice)
166{
167 // search the material by its name
168 G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
169 if (pttoMaterial) {
170 aMaterial = pttoMaterial;
171 UpdateGeometry();
172 } else {
173 G4cout << "\n--> warning from DetectorConstruction::SetMaterial : "
174 << materialChoice << " not found" << G4endl;
175 }
176}
177
178//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
179
180void DetectorConstruction::SetSize(G4double value)
181{
182 BoxSize = value;
183 UpdateGeometry();
184}
185
186//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
187
188#include "G4RunManager.hh"
189
190void DetectorConstruction::UpdateGeometry()
191{
192 if (pBox)
193 G4RunManager::GetRunManager()->DefineWorldVolume(ConstructVolumes());
194}
195
196//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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