TestEm13/src/DetectorConstruction.cc

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0025 //
0026 /// \file DetectorConstruction.cc
0027 /// \brief Implementation of the DetectorConstruction class
0028
0029 #include "DetectorConstruction.hh"
0030
0031 #include "DetectorMessenger.hh"
0032
0033 #include "G4Box.hh"
0034 #include "G4GeometryManager.hh"
0035 #include "G4LogicalVolume.hh"
0036 #include "G4LogicalVolumeStore.hh"
0037 #include "G4Material.hh"
0038 #include "G4NistManager.hh"
0039 #include "G4PVPlacement.hh"
0040 #include "G4PhysicalVolumeStore.hh"
0041 #include "G4RunManager.hh"
0042 #include "G4SolidStore.hh"
0043 #include "G4SystemOfUnits.hh"
0044 #include "G4UnitsTable.hh"
0045
0046 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0047
0048 DetectorConstruction::DetectorConstruction()
0049 {
0050   fBoxSize = 1 * cm;
0051   DefineMaterials();
0052   SetMaterial("Water");
0053   fDetectorMessenger = new DetectorMessenger(this);
0054 }
0055
0056 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0057
0058 DetectorConstruction::~DetectorConstruction()
0059 {
0060   delete fDetectorMessenger;
0061 }
0062
0063 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0064
0065 G4VPhysicalVolume* DetectorConstruction::Construct()
0066 {
0067   return ConstructVolumes();
0068 }
0069
0070 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0071
0072 void DetectorConstruction::DefineMaterials()
0073 {
0074   //
0075   // define Elements
0076   //
0077   G4double z, a;
0078
0079   G4Element* H = new G4Element("Hydrogen", "H", z = 1., a = 1.01 * g / mole);
0080   G4Element* N = new G4Element("Nitrogen", "N", z = 7., a = 14.01 * g / mole);
0081   G4Element* O = new G4Element("Oxygen", "O", z = 8., a = 16.00 * g / mole);
0082   G4Element* Na = new G4Element("Sodium", "Na", z = 11., a = 22.99 * g / mole);
0083   G4Element* Ge = new G4Element("Germanium", "Ge", z = 32., a = 72.59 * g / mole);
0084   G4Element* I = new G4Element("Iodine", "I", z = 53., a = 126.90 * g / mole);
0085   G4Element* Bi = new G4Element("Bismuth", "Bi", z = 83., a = 208.98 * g / mole);
0086
0087   //
0088   // define materials
0089   //
0090   G4double density;
0091   G4int ncomponents, natoms;
0092   G4double fractionmass;
0093
0094   G4Material* Air = new G4Material("Air", density = 1.290 * mg / cm3, ncomponents = 2);
0095   Air->AddElement(N, fractionmass = 70. * perCent);
0096   Air->AddElement(O, fractionmass = 30. * perCent);
0097
0098   G4Material* H2l = new G4Material("H2liquid", density = 70.8 * mg / cm3, ncomponents = 1);
0099   H2l->AddElement(H, fractionmass = 1.);
0100
0101   G4Material* H2O = new G4Material("Water", density = 1.000 * g / cm3, ncomponents = 2);
0102   H2O->AddElement(H, natoms = 2);
0103   H2O->AddElement(O, natoms = 1);
0104   H2O->SetChemicalFormula("H_2O");
0105   H2O->GetIonisation()->SetMeanExcitationEnergy(78.0 * eV);
0106
0107   new G4Material("liquidArgon", z = 18., a = 39.95 * g / mole, density = 1.390 * g / cm3);
0108
0109   new G4Material("Carbon", z = 6., a = 12.01 * g / mole, density = 2.267 * g / cm3);
0110
0111   new G4Material("Aluminium", z = 13., a = 26.98 * g / mole, density = 2.700 * g / cm3);
0112
0113   new G4Material("Silicon", z = 14., a = 28.09 * g / mole, density = 2.330 * g / cm3);
0114
0115   new G4Material("Germanium", z = 32., a = 72.61 * g / mole, density = 5.323 * g / cm3);
0116
0117   G4Material* NaI = new G4Material("NaI", density = 3.67 * g / cm3, ncomponents = 2);
0118   NaI->AddElement(Na, natoms = 1);
0119   NaI->AddElement(I, natoms = 1);
0120   NaI->GetIonisation()->SetMeanExcitationEnergy(452 * eV);
0121
0122   G4Material* Iod = new G4Material("Iodine", density = 4.93 * g / cm3, ncomponents = 1);
0123   Iod->AddElement(I, natoms = 1);
0124
0125   G4Material* BGO = new G4Material("BGO", density = 7.10 * g / cm3, ncomponents = 3);
0126   BGO->AddElement(O, natoms = 12);
0127   BGO->AddElement(Ge, natoms = 3);
0128   BGO->AddElement(Bi, natoms = 4);
0129
0130   new G4Material("Iron", z = 26., a = 55.85 * g / mole, density = 7.870 * g / cm3);
0131
0132   new G4Material("Tungsten", z = 74., a = 183.85 * g / mole, density = 19.30 * g / cm3);
0133
0134   new G4Material("Lead", z = 82., a = 207.19 * g / mole, density = 11.35 * g / cm3);
0135
0136   new G4Material("Uranium", z = 92., a = 238.03 * g / mole, density = 18.95 * g / cm3);
0137
0138   /// G4cout << *(G4Material::GetMaterialTable()) << G4endl;
0139 }
0140
0141 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0142
0143 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
0144 {
0145   // Cleanup old geometry
0146   G4GeometryManager::GetInstance()->OpenGeometry();
0147   G4PhysicalVolumeStore::GetInstance()->Clean();
0148   G4LogicalVolumeStore::GetInstance()->Clean();
0149   G4SolidStore::GetInstance()->Clean();
0150
0151   G4Box* sBox = new G4Box("Container",  // its name
0152                           fBoxSize / 2, fBoxSize / 2, fBoxSize / 2);  // its dimensions
0153
0154   fLBox = new G4LogicalVolume(sBox,  // its shape
0155                               fMaterial,  // its material
0156                               fMaterial->GetName());  // its name
0157
0158   fPBox = new G4PVPlacement(0,  // no rotation
0159                             G4ThreeVector(),  // at (0,0,0)
0160                             fLBox,  // its logical volume
0161                             fMaterial->GetName(),  // its name
0162                             0,  // its mother  volume
0163                             false,  // no boolean operation
0164                             0);  // copy number
0165
0166   PrintParameters();
0167
0168   // always return the root volume
0169   //
0170   return fPBox;
0171 }
0172
0173 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0174
0175 void DetectorConstruction::PrintParameters()
0176 {
0177   G4cout << "\n The Box is " << G4BestUnit(fBoxSize, "Length") << " of " << fMaterial->GetName()
0178          << G4endl;
0179   G4cout << "\n" << fMaterial << G4endl;
0180 }
0181
0182 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0183
0184 void DetectorConstruction::SetMaterial(G4String materialChoice)
0185 {
0186   // search the material by its name, or build it from nist data base
0187   G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
0188
0189   if (pttoMaterial) {
0190     fMaterial = pttoMaterial;
0191     G4RunManager::GetRunManager()->PhysicsHasBeenModified();
0192   }
0193   else {
0194     G4cout << "\n--> warning from DetectorConstruction::SetMaterial : " << materialChoice
0195            << " not found" << G4endl;
0196   }
0197 }
0198
0199 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0200
0201 void DetectorConstruction::SetSize(G4double value)
0202 {
0203   fBoxSize = value;
0204   G4RunManager::GetRunManager()->ReinitializeGeometry();
0205 }
0206
0207 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......