source: trunk/examples/extended/electromagnetic/TestEm18/src/DetectorConstruction.cc@ 1036

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

update
File size: 6.9 KB
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1//
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24// ********************************************************************
25//
26// $Id: DetectorConstruction.cc,v 1.2 2007/02/16 11:59:47 maire 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: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 G4cout << *(G4Material::GetMaterialTable()) << G4endl;
117}
118
119//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
120
121G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
122{
123 // Cleanup old geometry
124 G4GeometryManager::GetInstance()->OpenGeometry();
125 G4PhysicalVolumeStore::GetInstance()->Clean();
126 G4LogicalVolumeStore::GetInstance()->Clean();
127 G4SolidStore::GetInstance()->Clean();
128
129 G4Box*
130 sBox = new G4Box("Container", //its name
131 BoxSize/2,BoxSize/2,BoxSize/2); //its dimensions
132
133 lBox = new G4LogicalVolume(sBox, //its shape
134 aMaterial, //its material
135 aMaterial->GetName()); //its name
136
137 pBox = new G4PVPlacement(0, //no rotation
138 G4ThreeVector(), //at (0,0,0)
139 lBox, //its logical volume
140 aMaterial->GetName(), //its name
141 0, //its mother volume
142 false, //no boolean operation
143 0); //copy number
144
145 PrintParameters();
146
147 //always return the root volume
148 //
149 return pBox;
150}
151
152//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
153
154void DetectorConstruction::PrintParameters()
155{
156 G4cout << "\n The Box is " << G4BestUnit(BoxSize,"Length")
157 << " of " << aMaterial->GetName() << G4endl;
158}
159
160//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
161
162void DetectorConstruction::SetMaterial(G4String materialChoice)
163{
164 // search the material by its name
165 G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
166 if (pttoMaterial) {
167 aMaterial = pttoMaterial;
168 UpdateGeometry();
169 } else {
170 G4cout << "\n--> warning from DetectorConstruction::SetMaterial : "
171 << materialChoice << " not found" << G4endl;
172 }
173}
174
175//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
176
177void DetectorConstruction::SetSize(G4double value)
178{
179 BoxSize = value;
180 UpdateGeometry();
181}
182
183//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
184
185#include "G4RunManager.hh"
186
187void DetectorConstruction::UpdateGeometry()
188{
189 if (pBox)
190 G4RunManager::GetRunManager()->DefineWorldVolume(ConstructVolumes());
191}
192
193//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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