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DetectorConstruction.cc
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30 //
31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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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 #include "G4RunManager.hh"
47 #include "G4NistManager.hh"
48 
49 #include "G4UnitsTable.hh"
50 #include "G4PhysicalConstants.hh"
51 #include "G4SystemOfUnits.hh"
52 
53 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
54 
55 DetectorConstruction::DetectorConstruction()
56 :G4VUserDetectorConstruction(),fPBox(0), fLBox(0), fMaterial(0),
57  fDetectorMessenger(0)
58 {
59  fBoxSize = 1*m;
60  DefineMaterials();
61  SetMaterial("G4_Fe");
62  fDetectorMessenger = new DetectorMessenger(this);
63 }
64 
65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
66 
67 DetectorConstruction::~DetectorConstruction()
68 { delete fDetectorMessenger;}
69 
70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
71 
72 G4VPhysicalVolume* DetectorConstruction::Construct()
73 {
74  return ConstructVolumes();
75 }
76 
77 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
78 
79 void DetectorConstruction::DefineMaterials()
80 {
81  //
82  // define Elements
83  //
84  G4double z,a;
85 
86  G4Element* C = new G4Element("Carbon" ,"C" , z= 6., a= 12.01*g/mole);
87  G4Element* N = new G4Element("Nitrogen" ,"N" , z= 7., a= 14.01*g/mole);
88  G4Element* O = new G4Element("Oxygen" ,"O" , z= 8., a= 16.00*g/mole);
89  G4Element* Ca = new G4Element("Calcium" ,"Ca", z=20., a= 40.08*g/mole);
90  G4Element* H = new G4Element("Hydrogen" ,"H" , z= 1., a= 1.01*g/mole);
91  G4Element* I = new G4Element("Iodine" ,"I" , z= 53., a= 126.90*g/mole);
92 
93  //
94  // define materials
95  //
96  G4double density;
97  G4int ncomponents, natoms;
98  G4double fractionmass;
99 
100  new G4Material("galactic", z=1., a= 1.01*g/mole, universe_mean_density,
101  kStateGas, 2.73*kelvin, 3.e-18*pascal);
102 
103  G4Material* Air =
104  new G4Material("Air", density= 1.290*mg/cm3, ncomponents=2);
105  Air->AddElement(N, fractionmass=70.*perCent);
106  Air->AddElement(O, fractionmass=30.*perCent);
107 
108  G4Material* CaCO3 =
109  new G4Material("CaCO3", density= 2.80*g/cm3, ncomponents=3);
110  CaCO3->AddElement(Ca, natoms= 1);
111  CaCO3->AddElement(C , natoms= 1);
112  CaCO3->AddElement(O , natoms= 3);
113 
114  new G4Material("Carbon", z= 6., a= 12.01*g/mole, density= 2.265*g/cm3);
115  new G4Material("Iron" , z=26., a= 55.85*g/mole, density= 7.870*g/cm3);
116  new G4Material("Tin" , z=50., a= 118.7*g/mole, density= 7.310*g/cm3);
117 
118  G4Material* HI =
119  new G4Material("HI", density= 2.8*g/cm3, ncomponents=2); //-35oC
120  HI->AddElement(H, natoms= 1);
121  HI->AddElement(I, natoms= 1);
122 
123  G4cout << *(G4Material::GetMaterialTable()) << G4endl;
124 }
125 
126 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
127 
128 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
129 {
130  if(fPBox) { return fPBox; }
131 
132  G4Box*
133  sBox = new G4Box("Container", //its name
134  fBoxSize/2,fBoxSize/2,fBoxSize/2); //its dimensions
135 
136  fLBox = new G4LogicalVolume(sBox, //its shape
137  fMaterial, //its material
138  fMaterial->GetName()); //its name
139 
140  fPBox = new G4PVPlacement(0, //no rotation
141  G4ThreeVector(), //at (0,0,0)
142  fLBox, //its logical volume
143  fMaterial->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 fPBox;
153 }
154 
155 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
156 
157 void DetectorConstruction::PrintParameters()
158 {
159  G4cout << "\n The Box is " << G4BestUnit(fBoxSize,"Length")
160  << " of " << fMaterial->GetName() << G4endl;
161 }
162 
163 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
164 
165 void DetectorConstruction::SetMaterial(const G4String& materialChoice)
166 {
167  // search the material by its name
168  G4Material* pttoMaterial =
169  G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
170 
171  if(pttoMaterial && fMaterial != pttoMaterial) {
172  fMaterial = pttoMaterial;
173  if(fLBox) { fLBox->SetMaterial(fMaterial); }
174  G4RunManager::GetRunManager()->PhysicsHasBeenModified();
175  }
176 }
177 
178 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
179 
180 void DetectorConstruction::SetSize(G4double value)
181 {
182  fBoxSize = value;
183 }
184 
185 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
186 
187 void DetectorConstruction::UpdateGeometry()
188 {
189  G4RunManager::GetRunManager()->DefineWorldVolume(ConstructVolumes());
190 }
191 
192 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......