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25 //
26 /// \file electromagnetic/TestEm17/src/DetectorConstruction.cc
27 /// \brief Implementation of the DetectorConstruction class
28 //
29 //
30 //
31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
33
34 #include "DetectorConstruction.hh"
35
36 #include "DetectorMessenger.hh"
37
38 #include "G4Box.hh"
39 #include "G4GeometryManager.hh"
40 #include "G4LogicalVolume.hh"
41 #include "G4LogicalVolumeStore.hh"
42 #include "G4Material.hh"
43 #include "G4NistManager.hh"
44 #include "G4PVPlacement.hh"
45 #include "G4PhysicalConstants.hh"
46 #include "G4PhysicalVolumeStore.hh"
47 #include "G4RunManager.hh"
48 #include "G4SolidStore.hh"
49 #include "G4SystemOfUnits.hh"
50 #include "G4UnitsTable.hh"
51
52 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
53
54 DetectorConstruction::DetectorConstruction()
55 : G4VUserDetectorConstruction(), fPBox(0), fLBox(0), fMaterial(0), fDetectorMessenger(0)
56 {
57 fBoxSize = 1 * m;
58 DefineMaterials();
59 SetMaterial("G4_Fe");
60 fDetectorMessenger = new DetectorMessenger(this);
61 }
62
63 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64
65 DetectorConstruction::~DetectorConstruction()
66 {
67 delete fDetectorMessenger;
68 }
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, kStateGas,
101 2.73 * kelvin, 3.e-18 * pascal);
102
103 G4Material* Air = 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* CaCO3 = new G4Material("CaCO3", density = 2.80 * g / cm3, ncomponents = 3);
108 CaCO3->AddElement(Ca, natoms = 1);
109 CaCO3->AddElement(C, natoms = 1);
110 CaCO3->AddElement(O, natoms = 3);
111
112 new G4Material("Carbon", z = 6., a = 12.01 * g / mole, density = 2.265 * g / cm3);
113 new G4Material("Iron", z = 26., a = 55.85 * g / mole, density = 7.870 * g / cm3);
114 new G4Material("Tin", z = 50., a = 118.7 * g / mole, density = 7.310 * g / cm3);
115
116 G4Material* HI = new G4Material("HI", density = 2.8 * g / cm3, ncomponents = 2); //-35oC
117 HI->AddElement(H, natoms = 1);
118 HI->AddElement(I, natoms = 1);
119
120 G4cout << *(G4Material::GetMaterialTable()) << G4endl;
121 }
122
123 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
124
125 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
126 {
127 if (fPBox) {
128 return fPBox;
129 }
130
131 G4Box* sBox = new G4Box("Container", // its name
132 fBoxSize / 2, fBoxSize / 2, fBoxSize / 2); // its dimensions
133
134 fLBox = new G4LogicalVolume(sBox, // its shape
135 fMaterial, // its material
136 fMaterial->GetName()); // its name
137
138 fPBox = new G4PVPlacement(0, // no rotation
139 G4ThreeVector(), // at (0,0,0)
140 fLBox, // its logical volume
141 fMaterial->GetName(), // its name
142 0, // its mother volume
143 false, // no boolean operation
144 0); // copy number
145
146 PrintParameters();
147
148 // always return the root volume
149 //
150 return fPBox;
151 }
152
153 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
154
155 void DetectorConstruction::PrintParameters()
156 {
157 G4cout << "\n The Box is " << G4BestUnit(fBoxSize, "Length") << " of " << fMaterial->GetName()
158 << G4endl;
159 }
160
161 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
162
163 void DetectorConstruction::SetMaterial(const G4String& materialChoice)
164 {
165 // search the material by its name
166 G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
167
168 if (pttoMaterial && fMaterial != pttoMaterial) {
169 fMaterial = pttoMaterial;
170 if (fLBox) {
171 fLBox->SetMaterial(fMaterial);
172 }
173 G4RunManager::GetRunManager()->PhysicsHasBeenModified();
174 }
175 }
176
177 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
178
179 void DetectorConstruction::SetSize(G4double value)
180 {
181 fBoxSize = value;
182 }
183
184 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
185
186 void DetectorConstruction::UpdateGeometry()
187 {
188 G4RunManager::GetRunManager()->DefineWorldVolume(ConstructVolumes());
189 }
190
191 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
192