1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: DetectorConstruction.cc,v 1.12 2006/10/20 16:03:40 maire Exp $ |
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28 | // GEANT4 tag $Name: $ |
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29 | |
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30 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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31 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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32 | |
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33 | #include "DetectorConstruction.hh" |
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34 | #include "DetectorMessenger.hh" |
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35 | |
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36 | #include "G4Tubs.hh" |
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37 | #include "G4LogicalVolume.hh" |
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38 | #include "G4PVPlacement.hh" |
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39 | #include "G4UniformMagField.hh" |
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40 | |
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41 | #include "G4GeometryManager.hh" |
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42 | #include "G4PhysicalVolumeStore.hh" |
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43 | #include "G4LogicalVolumeStore.hh" |
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44 | #include "G4SolidStore.hh" |
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45 | |
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46 | #include "G4UnitsTable.hh" |
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47 | |
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48 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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49 | |
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50 | DetectorConstruction::DetectorConstruction() |
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51 | :nLtot(40),nRtot(50),dLradl(0.5),dRradl(0.1), |
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52 | dLlength(0.),dRlength(0.), |
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53 | myMaterial(0),magField(0), |
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54 | EcalLength(0.),EcalRadius(0.), |
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55 | solidEcal(0),logicEcal(0),physiEcal(0) |
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56 | { |
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57 | DefineMaterials(); |
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58 | SetMaterial("PbWO4"); |
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59 | detectorMessenger = new DetectorMessenger(this); |
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60 | } |
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61 | |
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62 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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63 | |
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64 | DetectorConstruction::~DetectorConstruction() |
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65 | { delete detectorMessenger;} |
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66 | |
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67 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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68 | |
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69 | G4VPhysicalVolume* DetectorConstruction::Construct() |
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70 | { |
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71 | return ConstructVolumes(); |
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72 | } |
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73 | |
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74 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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75 | |
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76 | void DetectorConstruction::DefineMaterials() |
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77 | { |
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78 | // |
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79 | // define few Elements |
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80 | // |
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81 | G4double a, z; |
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82 | |
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83 | G4Element* H = new G4Element("Hydrogen", "H", z= 1., a= 1.01*g/mole); |
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84 | G4Element* N = new G4Element("Nitrogen", "N", z= 7., a= 14.01*g/mole); |
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85 | G4Element* O = new G4Element("Oxygen" , "O", z= 8., a= 16.00*g/mole); |
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86 | G4Element* Ge = new G4Element("Germanium", "Ge",z=32., a= 72.59*g/mole); |
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87 | G4Element* W = new G4Element("Tungsten", "W", z=74., a= 183.84*g/mole); |
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88 | G4Element* Pb = new G4Element("Lead", "Pb",z=82., a= 207.19*g/mole); |
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89 | G4Element* Bi = new G4Element("Bismuth", "Bi",z=83., a= 208.98*g/mole); |
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90 | |
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91 | // |
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92 | // define materials |
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93 | // |
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94 | G4double density; |
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95 | G4double fractionmass; G4int ncomponents, natoms; |
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96 | |
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97 | G4Material* Air = |
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98 | new G4Material("Air", density= 1.29*mg/cm3, ncomponents=2); |
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99 | Air->AddElement(N, fractionmass=0.7); |
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100 | Air->AddElement(O, fractionmass=0.3); |
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101 | |
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102 | G4Material* H2O = |
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103 | new G4Material("Water", density= 1.00*g/cm3, ncomponents=2); |
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104 | H2O->AddElement(H, natoms=2); |
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105 | H2O->AddElement(O, natoms=1); |
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106 | H2O->GetIonisation()->SetMeanExcitationEnergy(75.0*eV); |
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107 | |
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108 | new G4Material("liquidArgon", z=18., a= 39.95*g/mole, density= 1.390*g/cm3); |
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109 | |
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110 | new G4Material("Aluminium", z=13., a= 26.98*g/mole, density= 2.7*g/cm3); |
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111 | |
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112 | new G4Material("Iron", z=26., a= 55.85*g/mole, density= 7.87*g/cm3); |
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113 | |
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114 | new G4Material("Copper" , z=29., a= 63.55*g/mole, density= 8.960*g/cm3); |
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115 | |
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116 | new G4Material("Lead", z=82., a=207.19*g/mole, density=11.35*g/cm3); |
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117 | |
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118 | new G4Material("Uranium" , z=92., a=238.03*g/mole, density= 18.95*g/cm3); |
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119 | |
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120 | G4Material* BGO = |
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121 | new G4Material("BGO", density= 7.10*g/cm3, ncomponents=3); |
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122 | BGO->AddElement(O , natoms=12); |
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123 | BGO->AddElement(Ge, natoms= 3); |
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124 | BGO->AddElement(Bi, natoms= 4); |
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125 | |
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126 | G4Material* PbWO = |
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127 | new G4Material("PbWO4", density= 8.28*g/cm3, ncomponents=3); |
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128 | PbWO->AddElement(O , natoms=4); |
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129 | PbWO->AddElement(Pb, natoms=1); |
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130 | PbWO->AddElement(W , natoms=1); |
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131 | |
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132 | G4cout << *(G4Material::GetMaterialTable()) << G4endl; |
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133 | } |
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134 | |
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135 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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136 | |
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137 | G4VPhysicalVolume* DetectorConstruction::ConstructVolumes() |
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138 | { |
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139 | G4double Radl = myMaterial->GetRadlen(); |
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140 | |
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141 | dLlength = dLradl*Radl; dRlength = dRradl*Radl; |
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142 | EcalLength = nLtot*dLlength; EcalRadius = nRtot*dRlength; |
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143 | |
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144 | // Cleanup old geometry |
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145 | G4GeometryManager::GetInstance()->OpenGeometry(); |
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146 | G4PhysicalVolumeStore::GetInstance()->Clean(); |
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147 | G4LogicalVolumeStore::GetInstance()->Clean(); |
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148 | G4SolidStore::GetInstance()->Clean(); |
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149 | |
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150 | // |
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151 | // Ecal |
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152 | // |
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153 | solidEcal = new G4Tubs("Ecal",0.,EcalRadius,0.5*EcalLength,0.,360*deg); |
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154 | logicEcal = new G4LogicalVolume( solidEcal,myMaterial,"Ecal",0,0,0); |
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155 | physiEcal = new G4PVPlacement(0,G4ThreeVector(), |
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156 | logicEcal,"Ecal",0,false,0); |
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157 | |
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158 | G4cout << "Absorber is " << G4BestUnit(EcalLength,"Length") |
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159 | << " of " << myMaterial->GetName() << G4endl; |
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160 | G4cout << myMaterial << G4endl; |
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161 | |
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162 | // |
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163 | //always return the physical World |
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164 | // |
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165 | return physiEcal; |
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166 | } |
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167 | |
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168 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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169 | |
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170 | void DetectorConstruction::SetMaterial(const G4String& materialChoice) |
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171 | { |
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172 | // search the material by its name |
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173 | G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice); |
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174 | if (pttoMaterial) myMaterial = pttoMaterial; |
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175 | } |
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176 | |
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177 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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178 | |
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179 | void DetectorConstruction::SetLBining(G4ThreeVector Value) |
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180 | { |
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181 | nLtot = (G4int)Value(0); |
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182 | if (nLtot > MaxBin) { |
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183 | G4cout << "\n ---> warning from SetLBining: " |
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184 | << nLtot << " truncated to " << MaxBin << G4endl; |
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185 | nLtot = MaxBin; |
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186 | } |
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187 | dLradl = Value(1); |
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188 | } |
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189 | |
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190 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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191 | |
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192 | void DetectorConstruction::SetRBining(G4ThreeVector Value) |
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193 | { |
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194 | nRtot = (G4int)Value(0); |
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195 | if (nRtot > MaxBin) { |
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196 | G4cout << "\n ---> warning from SetRBining: " |
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197 | << nRtot << " truncated to " << MaxBin << G4endl; |
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198 | nRtot = MaxBin; |
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199 | } |
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200 | dRradl = Value(1); |
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201 | } |
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202 | |
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203 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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204 | |
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205 | #include "G4FieldManager.hh" |
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206 | #include "G4TransportationManager.hh" |
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207 | |
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208 | void DetectorConstruction::SetMagField(G4double fieldValue) |
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209 | { |
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210 | //apply a global uniform magnetic field along Z axis |
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211 | G4FieldManager* fieldMgr |
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212 | = G4TransportationManager::GetTransportationManager()->GetFieldManager(); |
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213 | |
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214 | if(magField) delete magField; //delete the existing magn field |
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215 | |
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216 | if(fieldValue!=0.) // create a new one if non nul |
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217 | { magField = new G4UniformMagField(G4ThreeVector(0.,0.,fieldValue)); |
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218 | fieldMgr->SetDetectorField(magField); |
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219 | fieldMgr->CreateChordFinder(magField); |
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220 | } else { |
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221 | magField = 0; |
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222 | fieldMgr->SetDetectorField(magField); |
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223 | } |
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224 | } |
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225 | |
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226 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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227 | |
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228 | #include "G4RunManager.hh" |
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229 | |
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230 | void DetectorConstruction::UpdateGeometry() |
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231 | { |
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232 | G4RunManager::GetRunManager()->DefineWorldVolume(ConstructVolumes()); |
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233 | } |
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234 | |
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235 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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