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