TestEm17/src/DetectorConstruction.cc

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0026 /// \file electromagnetic/TestEm17/src/DetectorConstruction.cc
0027 /// \brief Implementation of the DetectorConstruction class
0028 //
0029 //
0030 //
0031 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0032 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0033
0034 #include "DetectorConstruction.hh"
0035
0036 #include "DetectorMessenger.hh"
0037
0038 #include "G4Box.hh"
0039 #include "G4GeometryManager.hh"
0040 #include "G4LogicalVolume.hh"
0041 #include "G4LogicalVolumeStore.hh"
0042 #include "G4Material.hh"
0043 #include "G4NistManager.hh"
0044 #include "G4PVPlacement.hh"
0045 #include "G4PhysicalConstants.hh"
0046 #include "G4PhysicalVolumeStore.hh"
0047 #include "G4RunManager.hh"
0048 #include "G4SolidStore.hh"
0049 #include "G4SystemOfUnits.hh"
0050 #include "G4UnitsTable.hh"
0051
0052 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0053
0054 DetectorConstruction::DetectorConstruction()
0055   : G4VUserDetectorConstruction(), fPBox(0), fLBox(0), fMaterial(0), fDetectorMessenger(0)
0056 {
0057   fBoxSize = 1 * m;
0058   DefineMaterials();
0059   SetMaterial("G4_Fe");
0060   fDetectorMessenger = new DetectorMessenger(this);
0061 }
0062
0063 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0064
0065 DetectorConstruction::~DetectorConstruction()
0066 {
0067   delete fDetectorMessenger;
0068 }
0069
0070 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0071
0072 G4VPhysicalVolume* DetectorConstruction::Construct()
0073 {
0074   return ConstructVolumes();
0075 }
0076
0077 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0078
0079 void DetectorConstruction::DefineMaterials()
0080 {
0081   //
0082   // define Elements
0083   //
0084   G4double z, a;
0085
0086   G4Element* C = new G4Element("Carbon", "C", z = 6., a = 12.01 * g / mole);
0087   G4Element* N = new G4Element("Nitrogen", "N", z = 7., a = 14.01 * g / mole);
0088   G4Element* O = new G4Element("Oxygen", "O", z = 8., a = 16.00 * g / mole);
0089   G4Element* Ca = new G4Element("Calcium", "Ca", z = 20., a = 40.08 * g / mole);
0090   G4Element* H = new G4Element("Hydrogen", "H", z = 1., a = 1.01 * g / mole);
0091   G4Element* I = new G4Element("Iodine", "I", z = 53., a = 126.90 * g / mole);
0092
0093   //
0094   // define materials
0095   //
0096   G4double density;
0097   G4int ncomponents, natoms;
0098   G4double fractionmass;
0099
0100   new G4Material("galactic", z = 1., a = 1.01 * g / mole, universe_mean_density, kStateGas,
0101                  2.73 * kelvin, 3.e-18 * pascal);
0102
0103   G4Material* Air = new G4Material("Air", density = 1.290 * mg / cm3, ncomponents = 2);
0104   Air->AddElement(N, fractionmass = 70. * perCent);
0105   Air->AddElement(O, fractionmass = 30. * perCent);
0106
0107   G4Material* CaCO3 = new G4Material("CaCO3", density = 2.80 * g / cm3, ncomponents = 3);
0108   CaCO3->AddElement(Ca, natoms = 1);
0109   CaCO3->AddElement(C, natoms = 1);
0110   CaCO3->AddElement(O, natoms = 3);
0111
0112   new G4Material("Carbon", z = 6., a = 12.01 * g / mole, density = 2.265 * g / cm3);
0113   new G4Material("Iron", z = 26., a = 55.85 * g / mole, density = 7.870 * g / cm3);
0114   new G4Material("Tin", z = 50., a = 118.7 * g / mole, density = 7.310 * g / cm3);
0115
0116   G4Material* HI = new G4Material("HI", density = 2.8 * g / cm3, ncomponents = 2);  //-35oC
0117   HI->AddElement(H, natoms = 1);
0118   HI->AddElement(I, natoms = 1);
0119
0120   G4cout << *(G4Material::GetMaterialTable()) << G4endl;
0121 }
0122
0123 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0124
0125 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
0126 {
0127   if (fPBox) {
0128     return fPBox;
0129   }
0130
0131   G4Box* sBox = new G4Box("Container",  // its name
0132                           fBoxSize / 2, fBoxSize / 2, fBoxSize / 2);  // its dimensions
0133
0134   fLBox = new G4LogicalVolume(sBox,  // its shape
0135                               fMaterial,  // its material
0136                               fMaterial->GetName());  // its name
0137
0138   fPBox = new G4PVPlacement(0,  // no rotation
0139                             G4ThreeVector(),  // at (0,0,0)
0140                             fLBox,  // its logical volume
0141                             fMaterial->GetName(),  // its name
0142                             0,  // its mother  volume
0143                             false,  // no boolean operation
0144                             0);  // copy number
0145
0146   PrintParameters();
0147
0148   // always return the root volume
0149   //
0150   return fPBox;
0151 }
0152
0153 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0154
0155 void DetectorConstruction::PrintParameters()
0156 {
0157   G4cout << "\n The Box is " << G4BestUnit(fBoxSize, "Length") << " of " << fMaterial->GetName()
0158          << G4endl;
0159 }
0160
0161 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0162
0163 void DetectorConstruction::SetMaterial(const G4String& materialChoice)
0164 {
0165   // search the material by its name
0166   G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
0167
0168   if (pttoMaterial && fMaterial != pttoMaterial) {
0169     fMaterial = pttoMaterial;
0170     if (fLBox) {
0171       fLBox->SetMaterial(fMaterial);
0172     }
0173     G4RunManager::GetRunManager()->PhysicsHasBeenModified();
0174   }
0175 }
0176
0177 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0178
0179 void DetectorConstruction::SetSize(G4double value)
0180 {
0181   fBoxSize = value;
0182 }
0183
0184 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0185
0186 void DetectorConstruction::UpdateGeometry()
0187 {
0188   G4RunManager::GetRunManager()->DefineWorldVolume(ConstructVolumes());
0189 }
0190
0191 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......