TestEm0/src/DetectorConstruction.cc

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0026 /// \file electromagnetic/TestEm0/src/DetectorConstruction.cc
0027 /// \brief Implementation of the DetectorConstruction class
0028 //
0029
0030 //
0031 //
0032 //
0033
0034 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0035 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0036
0037 #include "DetectorConstruction.hh"
0038
0039 #include "DetectorMessenger.hh"
0040
0041 #include "G4Box.hh"
0042 #include "G4GeometryManager.hh"
0043 #include "G4LogicalVolume.hh"
0044 #include "G4LogicalVolumeStore.hh"
0045 #include "G4Material.hh"
0046 #include "G4NistManager.hh"
0047 #include "G4PVPlacement.hh"
0048 #include "G4PhysicalVolumeStore.hh"
0049 #include "G4SolidStore.hh"
0050 #include "G4SystemOfUnits.hh"
0051 #include "G4UnitsTable.hh"
0052
0053 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0054
0055 DetectorConstruction::DetectorConstruction()
0056 {
0057   fBoxSize = 1 * mm;
0058   DefineMaterials();
0059   SetMaterial("Germanium");
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 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* C = new G4Element("Carbon", "C", z = 6., a = 12.01 * g / mole);
0081   G4Element* N = new G4Element("Nitrogen", "N", z = 7., a = 14.01 * g / mole);
0082   G4Element* O = new G4Element("Oxygen", "O", z = 8., a = 16.00 * g / mole);
0083   G4Element* Ge = new G4Element("Germanium", "Ge", z = 32., a = 72.59 * g / mole);
0084   G4Element* Pb = new G4Element("Lead", "Pb", z = 82., a = 207.19 * 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   G4Material* steam = new G4Material("WaterSteam", density = 1.0 * mg / cm3, ncomponents = 1);
0108   steam->AddMaterial(H2O, fractionmass = 1.);
0109   steam->GetIonisation()->SetMeanExcitationEnergy(71.6 * eV);
0110
0111   G4Material* BGO = new G4Material("BGO", density = 7.10 * g / cm3, ncomponents = 3);
0112   BGO->AddElement(O, natoms = 12);
0113   BGO->AddElement(Ge, natoms = 3);
0114   BGO->AddElement(Bi, natoms = 4);
0115
0116   new G4Material("Aluminium", z = 13., a = 26.98 * g / mole, density = 2.700 * g / cm3);
0117   new G4Material("Silicon", z = 14., a = 28.09 * g / mole, density = 2.330 * g / cm3);
0118   new G4Material("liquidArgon", z = 18., a = 39.95 * g / mole, density = 1.390 * g / cm3);
0119   new G4Material("Iron", z = 26., a = 55.85 * g / mole, density = 7.870 * g / cm3);
0120   new G4Material("Copper", z = 29., a = 63.55 * g / mole, density = 8.960 * g / cm3);
0121   new G4Material("Germanium", z = 32., a = 72.61 * g / mole, density = 5.323 * g / cm3);
0122   new G4Material("Silver", z = 47., a = 107.87 * g / mole, density = 10.50 * g / cm3);
0123   new G4Material("Tungsten", z = 74., a = 183.85 * g / mole, density = 19.30 * g / cm3);
0124   new G4Material("Lead", z = 82., a = 207.19 * g / mole, density = 11.35 * g / cm3);
0125   new G4Material("Uranium", z = 92., a = 238.03 * g / mole, density = 18.95 * g / cm3);
0126
0127   G4Material* ams = new G4Material("ams", density = 7.409 * g / cm3, ncomponents = 3);
0128   ams->AddElement(Pb, fractionmass = 94.81 * perCent);
0129   ams->AddElement(C, fractionmass = 4.79 * perCent);
0130   ams->AddElement(H, fractionmass = 0.40 * perCent);
0131
0132   G4Material* argonGas =
0133     new G4Material("ArgonGas", z = 18, a = 39.948 * g / mole, density = 1.782 * mg / cm3, kStateGas,
0134                    273.15 * kelvin, 1 * atmosphere);
0135
0136   G4Material* butane = new G4Material("Isobutane", density = 2.42 * mg / cm3, ncomponents = 2,
0137                                       kStateGas, 273.15 * kelvin, 1 * atmosphere);
0138   butane->AddElement(C, natoms = 4);
0139   butane->AddElement(H, natoms = 10);
0140
0141   G4Material* ArButane = new G4Material("ArgonButane", density = 1.835 * mg / cm3, ncomponents = 2,
0142                                         kStateGas, 273.15 * kelvin, 1. * atmosphere);
0143   ArButane->AddMaterial(argonGas, fractionmass = 70 * perCent);
0144   ArButane->AddMaterial(butane, fractionmass = 30 * perCent);
0145
0146   /// exercise: Xenon gas
0147   //
0148   G4Element* Xe = new G4Element("Xenon", "Xe", z = 54., a = 131.29 * g / mole);
0149
0150   // XenonGas0 (NTP)
0151   G4double temperature0 = 293.15 * kelvin;
0152   G4double pressure0 = 1 * atmosphere;
0153   G4double density0 = 2.953 * mg / cm3;
0154   G4Material* matXe0 =
0155     new G4Material("XenonGas0", density0, ncomponents = 1, kStateGas, temperature0, pressure0);
0156   matXe0->AddElement(Xe, natoms = 1);
0157
0158   // XenonGas1
0159   G4double temperature1 = 293.15 * kelvin;
0160   G4double pressure1 = 50 * atmosphere;
0161   G4double density1 = density0 * (pressure1 / pressure0) * (temperature0 / temperature1);
0162   G4Material* matXe1 =
0163     new G4Material("XenonGas1", density1, ncomponents = 1, kStateGas, temperature1, pressure1);
0164   matXe1->AddElement(Xe, natoms = 1);
0165
0166   ////G4cout << *(G4Material::GetMaterialTable()) << G4endl;
0167 }
0168
0169 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0170
0171 G4VPhysicalVolume* DetectorConstruction::Construct()
0172 {
0173   // the geometry is created once
0174   if (fBox) {
0175     return fBox;
0176   }
0177
0178   G4Box* sBox = new G4Box("Container",  // its name
0179                           fBoxSize / 2, fBoxSize / 2, fBoxSize / 2);  // its dimensions
0180
0181   G4LogicalVolume* lBox = new G4LogicalVolume(sBox,  // its shape
0182                                               fMaterial,  // its material
0183                                               fMaterial->GetName());  // its name
0184
0185   fBox = new G4PVPlacement(0,  // no rotation
0186                            G4ThreeVector(0., 0., 0.),  // at (0,0,0)
0187                            lBox,  // its logical volume
0188                            fMaterial->GetName(),  // its name
0189                            0,  // its mother  volume
0190                            false,  // no boolean operation
0191                            0);  // copy number
0192
0193   // always return the root volume
0194   //
0195   return fBox;
0196 }
0197
0198 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0199
0200 void DetectorConstruction::PrintParameters() const
0201 {
0202   G4cout << "\n The Box is " << G4BestUnit(fBoxSize, "Length") << " of " << fMaterial->GetName()
0203          << G4endl;
0204 }
0205
0206 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0207
0208 #include "G4RunManager.hh"
0209
0210 void DetectorConstruction::SetMaterial(const G4String& materialChoice)
0211 {
0212   // search the material by its name, or build it from nist data base
0213   G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
0214
0215   if (pttoMaterial) {
0216     fMaterial = pttoMaterial;
0217     if (fBox) {
0218       fBox->GetLogicalVolume()->SetMaterial(fMaterial);
0219     }
0220     G4RunManager::GetRunManager()->PhysicsHasBeenModified();
0221     G4cout << "\n " << fMaterial << G4endl;
0222   }
0223   else {
0224     G4cout << "\n--> warning from DetectorConstruction::SetMaterial : " << materialChoice
0225            << " not found" << G4endl;
0226   }
0227 }
0228
0229 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......