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DetectorConstruction.cc
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29 // $Id$
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33 
34 #include "DetectorConstruction.hh"
35 #include "DetectorMessenger.hh"
36 
37 #include "G4Material.hh"
38 #include "G4Box.hh"
39 #include "G4LogicalVolume.hh"
40 #include "G4PVPlacement.hh"
41 
42 #include "G4GeometryManager.hh"
43 #include "G4PhysicalVolumeStore.hh"
44 #include "G4LogicalVolumeStore.hh"
45 #include "G4SolidStore.hh"
46 
47 #include "G4UnitsTable.hh"
48 #include "G4SystemOfUnits.hh"
49 
50 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
51 
52 DetectorConstruction::DetectorConstruction()
53 :fPBox(0), fLBox(0), fMaterial(0)
54 {
55  fBoxSize = 100*m;
56  DefineMaterials();
57  SetMaterial("Water");
58  fDetectorMessenger = new DetectorMessenger(this);
59 }
60 
61 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
62 
63 DetectorConstruction::~DetectorConstruction()
64 { delete fDetectorMessenger;}
65 
66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
67 
68 G4VPhysicalVolume* DetectorConstruction::Construct()
69 {
70  return ConstructVolumes();
71 }
72 
73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
74 
75 void DetectorConstruction::DefineMaterials()
76 {
77  //
78  // define Elements
79  //
80  G4double z,a;
81 
82  G4Element* H = new G4Element("Hydrogen" ,"H" , z= 1., a= 1.01*g/mole);
83  G4Element* N = new G4Element("Nitrogen" ,"N" , z= 7., a= 14.01*g/mole);
84  G4Element* O = new G4Element("Oxygen" ,"O" , z= 8., a= 16.00*g/mole);
85  G4Element* Na = new G4Element("Sodium" ,"Na", z=11., a= 22.99*g/mole);
86  G4Element* Ge = new G4Element("Germanium","Ge", z=32., a= 72.59*g/mole);
87  G4Element* I = new G4Element("Iodine" ,"I" , z=53., a= 126.90*g/mole);
88  G4Element* Bi = new G4Element("Bismuth" ,"Bi", z=83., a= 208.98*g/mole);
89 
90  //
91  // define materials
92  //
93  G4double density;
94  G4int ncomponents, natoms;
95  G4double fractionmass;
96 
97  G4Material* Air =
98  new G4Material("Air", density= 1.290*mg/cm3, ncomponents=2);
99  Air->AddElement(N, fractionmass=70.*perCent);
100  Air->AddElement(O, fractionmass=30.*perCent);
101 
102  G4Material* H2l =
103  new G4Material("H2liquid", density= 70.8*mg/cm3, ncomponents=1);
104  H2l->AddElement(H, fractionmass=1.);
105 
106  G4Material* H2O =
107  new G4Material("Water", density= 1.000*g/cm3, ncomponents=2);
108  H2O->AddElement(H, natoms=2);
109  H2O->AddElement(O, natoms=1);
110  H2O->SetChemicalFormula("H_2O");
111  H2O->GetIonisation()->SetMeanExcitationEnergy(78.0*eV);
112 
113  new G4Material("liquidArgon", z=18., a= 39.95*g/mole, density= 1.390*g/cm3);
114 
115  new G4Material("Carbon" , z=6., a= 12.01*g/mole, density= 2.267*g/cm3);
116 
117  new G4Material("Aluminium" , z=13., a= 26.98*g/mole, density= 2.700*g/cm3);
118 
119  new G4Material("Silicon" , z=14., a= 28.09*g/mole, density= 2.330*g/cm3);
120 
121  new G4Material("Chromium" , z=24., a= 51.99*g/mole, density= 7.140*g/cm3);
122 
123  new G4Material("Copper" , z=29., a= 63.55*g/mole, density= 8.920*g/cm3);
124 
125  new G4Material("Germanium" , z=32., a= 72.61*g/mole, density= 5.323*g/cm3);
126 
127  new G4Material("Nb" , z=41., a= 92.906*g/mole,density= 8.57*g/cm3);
128 
129  G4Material* NaI =
130  new G4Material("NaI", density= 3.67*g/cm3, ncomponents=2);
131  NaI->AddElement(Na, natoms=1);
132  NaI->AddElement(I , natoms=1);
133  NaI->GetIonisation()->SetMeanExcitationEnergy(452*eV);
134 
135  G4Material* Iod =
136  new G4Material("Iodine", density= 4.93*g/cm3, ncomponents=1);
137  Iod->AddElement(I , natoms=1);
138 
139  G4Material* BGO =
140  new G4Material("BGO", density= 7.10*g/cm3, ncomponents=3);
141  BGO->AddElement(O , natoms=12);
142  BGO->AddElement(Ge, natoms= 3);
143  BGO->AddElement(Bi, natoms= 4);
144 
145  new G4Material("Iron" , z=26., a= 55.85*g/mole, density= 7.870*g/cm3);
146 
147  new G4Material("Tungsten" , z=74., a=183.85*g/mole, density= 19.25*g/cm3);
148 
149  new G4Material("Gold" , z=79., a=196.97*g/mole, density= 19.30*g/cm3);
150 
151  new G4Material("Lead" , z=82., a=207.19*g/mole, density= 11.35*g/cm3);
152 
153  new G4Material("Uranium" , z=92., a=238.03*g/mole, density= 18.95*g/cm3);
154 
155  G4cout << *(G4Material::GetMaterialTable()) << G4endl;
156 }
157 
158 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
159 
160 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
161 {
162  // Cleanup old geometry
163  G4GeometryManager::GetInstance()->OpenGeometry();
164  G4PhysicalVolumeStore::GetInstance()->Clean();
165  G4LogicalVolumeStore::GetInstance()->Clean();
166  G4SolidStore::GetInstance()->Clean();
167 
168  G4Box*
169  sBox = new G4Box("Container", //its name
170  fBoxSize/2,fBoxSize/2,fBoxSize/2); //its dimensions
171 
172  fLBox = new G4LogicalVolume(sBox, //its shape
173  fMaterial, //its material
174  fMaterial->GetName()); //its name
175 
176  fPBox = new G4PVPlacement(0, //no rotation
177  G4ThreeVector(), //at (0,0,0)
178  fLBox, //its logical volume
179  fMaterial->GetName(), //its name
180  0, //its mother volume
181  false, //no boolean operation
182  0); //copy number
183 
184  PrintParameters();
185 
186  //always return the root volume
187  //
188  return fPBox;
189 }
190 
191 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
192 
193 void DetectorConstruction::PrintParameters()
194 {
195  G4cout << "\n The Box is " << G4BestUnit(fBoxSize,"Length")
196  << " of " << fMaterial->GetName() << G4endl;
197 }
198 
199 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
200 
201 void DetectorConstruction::SetMaterial(G4String materialChoice)
202 {
203  // search the material by its name
204  G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
205  if (pttoMaterial) {
206  fMaterial = pttoMaterial;
207  UpdateGeometry();
208  } else {
209  G4cout << "\n--> warning from DetectorConstruction::SetMaterial : "
210  << materialChoice << " not found" << G4endl;
211  }
212 }
213 
214 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
215 
216 void DetectorConstruction::SetSize(G4double value)
217 {
218  fBoxSize = value;
219  UpdateGeometry();
220 }
221 
222 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
223 
224 #include "G4RunManager.hh"
225 
226 void DetectorConstruction::UpdateGeometry()
227 {
228  if (fPBox)
229  G4RunManager::GetRunManager()->DefineWorldVolume(ConstructVolumes());
230 }
231 
232 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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