TestEm13/src/DetectorConstruction.cc

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0026 /// \file electromagnetic/TestEm13/src/DetectorConstruction.cc
0027 /// \brief Implementation of the DetectorConstruction class
0028 //
0029 //
0030 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0031 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0032
0033 #include "DetectorConstruction.hh"
0034
0035 #include "DetectorMessenger.hh"
0036
0037 #include "G4Box.hh"
0038 #include "G4GeometryManager.hh"
0039 #include "G4LogicalVolume.hh"
0040 #include "G4LogicalVolumeStore.hh"
0041 #include "G4Material.hh"
0042 #include "G4NistManager.hh"
0043 #include "G4PVPlacement.hh"
0044 #include "G4PhysicalVolumeStore.hh"
0045 #include "G4RunManager.hh"
0046 #include "G4SolidStore.hh"
0047 #include "G4SystemOfUnits.hh"
0048 #include "G4UnitsTable.hh"
0049
0050 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0051
0052 DetectorConstruction::DetectorConstruction()
0053 {
0054   fBoxSize = 1 * cm;
0055   DefineMaterials();
0056   SetMaterial("Water");
0057   fDetectorMessenger = new DetectorMessenger(this);
0058 }
0059
0060 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0061
0062 DetectorConstruction::~DetectorConstruction()
0063 {
0064   delete fDetectorMessenger;
0065 }
0066
0067 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0068
0069 G4VPhysicalVolume* DetectorConstruction::Construct()
0070 {
0071   return ConstructVolumes();
0072 }
0073
0074 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0075
0076 void DetectorConstruction::DefineMaterials()
0077 {
0078   //
0079   // define Elements
0080   //
0081   G4double z, a;
0082
0083   G4Element* H = new G4Element("Hydrogen", "H", z = 1., a = 1.01 * g / mole);
0084   G4Element* N = new G4Element("Nitrogen", "N", z = 7., a = 14.01 * g / mole);
0085   G4Element* O = new G4Element("Oxygen", "O", z = 8., a = 16.00 * g / mole);
0086   G4Element* Na = new G4Element("Sodium", "Na", z = 11., a = 22.99 * g / mole);
0087   G4Element* Ge = new G4Element("Germanium", "Ge", z = 32., a = 72.59 * g / mole);
0088   G4Element* I = new G4Element("Iodine", "I", z = 53., a = 126.90 * g / mole);
0089   G4Element* Bi = new G4Element("Bismuth", "Bi", z = 83., a = 208.98 * g / mole);
0090
0091   //
0092   // define materials
0093   //
0094   G4double density;
0095   G4int ncomponents, natoms;
0096   G4double fractionmass;
0097
0098   G4Material* Air = new G4Material("Air", density = 1.290 * mg / cm3, ncomponents = 2);
0099   Air->AddElement(N, fractionmass = 70. * perCent);
0100   Air->AddElement(O, fractionmass = 30. * perCent);
0101
0102   G4Material* H2l = new G4Material("H2liquid", density = 70.8 * mg / cm3, ncomponents = 1);
0103   H2l->AddElement(H, fractionmass = 1.);
0104
0105   G4Material* H2O = new G4Material("Water", density = 1.000 * g / cm3, ncomponents = 2);
0106   H2O->AddElement(H, natoms = 2);
0107   H2O->AddElement(O, natoms = 1);
0108   H2O->SetChemicalFormula("H_2O");
0109   H2O->GetIonisation()->SetMeanExcitationEnergy(78.0 * eV);
0110
0111   new G4Material("liquidArgon", z = 18., a = 39.95 * g / mole, density = 1.390 * g / cm3);
0112
0113   new G4Material("Carbon", z = 6., a = 12.01 * g / mole, density = 2.267 * g / cm3);
0114
0115   new G4Material("Aluminium", z = 13., a = 26.98 * g / mole, density = 2.700 * g / cm3);
0116
0117   new G4Material("Silicon", z = 14., a = 28.09 * g / mole, density = 2.330 * g / cm3);
0118
0119   new G4Material("Germanium", z = 32., a = 72.61 * g / mole, density = 5.323 * g / cm3);
0120
0121   G4Material* NaI = new G4Material("NaI", density = 3.67 * g / cm3, ncomponents = 2);
0122   NaI->AddElement(Na, natoms = 1);
0123   NaI->AddElement(I, natoms = 1);
0124   NaI->GetIonisation()->SetMeanExcitationEnergy(452 * eV);
0125
0126   G4Material* Iod = new G4Material("Iodine", density = 4.93 * g / cm3, ncomponents = 1);
0127   Iod->AddElement(I, natoms = 1);
0128
0129   G4Material* BGO = new G4Material("BGO", density = 7.10 * g / cm3, ncomponents = 3);
0130   BGO->AddElement(O, natoms = 12);
0131   BGO->AddElement(Ge, natoms = 3);
0132   BGO->AddElement(Bi, natoms = 4);
0133
0134   new G4Material("Iron", z = 26., a = 55.85 * g / mole, density = 7.870 * g / cm3);
0135
0136   new G4Material("Tungsten", z = 74., a = 183.85 * g / mole, density = 19.30 * g / cm3);
0137
0138   new G4Material("Lead", z = 82., a = 207.19 * g / mole, density = 11.35 * g / cm3);
0139
0140   new G4Material("Uranium", z = 92., a = 238.03 * g / mole, density = 18.95 * g / cm3);
0141
0142   /// G4cout << *(G4Material::GetMaterialTable()) << G4endl;
0143 }
0144
0145 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0146
0147 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
0148 {
0149   // Cleanup old geometry
0150   G4GeometryManager::GetInstance()->OpenGeometry();
0151   G4PhysicalVolumeStore::GetInstance()->Clean();
0152   G4LogicalVolumeStore::GetInstance()->Clean();
0153   G4SolidStore::GetInstance()->Clean();
0154
0155   G4Box* sBox = new G4Box("Container",  // its name
0156                           fBoxSize / 2, fBoxSize / 2, fBoxSize / 2);  // its dimensions
0157
0158   fLBox = new G4LogicalVolume(sBox,  // its shape
0159                               fMaterial,  // its material
0160                               fMaterial->GetName());  // its name
0161
0162   fPBox = new G4PVPlacement(0,  // no rotation
0163                             G4ThreeVector(),  // at (0,0,0)
0164                             fLBox,  // its logical volume
0165                             fMaterial->GetName(),  // its name
0166                             0,  // its mother  volume
0167                             false,  // no boolean operation
0168                             0);  // copy number
0169
0170   PrintParameters();
0171
0172   // always return the root volume
0173   //
0174   return fPBox;
0175 }
0176
0177 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0178
0179 void DetectorConstruction::PrintParameters()
0180 {
0181   G4cout << "\n The Box is " << G4BestUnit(fBoxSize, "Length") << " of " << fMaterial->GetName()
0182          << G4endl;
0183   G4cout << "\n" << fMaterial << G4endl;
0184 }
0185
0186 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0187
0188 void DetectorConstruction::SetMaterial(G4String materialChoice)
0189 {
0190   // search the material by its name, or build it from nist data base
0191   G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
0192
0193   if (pttoMaterial) {
0194     fMaterial = pttoMaterial;
0195     G4RunManager::GetRunManager()->PhysicsHasBeenModified();
0196   }
0197   else {
0198     G4cout << "\n--> warning from DetectorConstruction::SetMaterial : " << materialChoice
0199            << " not found" << G4endl;
0200   }
0201 }
0202
0203 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0204
0205 void DetectorConstruction::SetSize(G4double value)
0206 {
0207   fBoxSize = value;
0208   G4RunManager::GetRunManager()->ReinitializeGeometry();
0209 }
0210
0211 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......