1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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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: F03DetectorConstruction.cc,v 1.13 2009/11/05 01:10:06 gum Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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29 | // |
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30 | // |
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31 | |
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32 | #include "F03DetectorConstruction.hh" |
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33 | #include "F03DetectorMessenger.hh" |
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34 | #include "F03CalorimeterSD.hh" |
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35 | #include "F03FieldSetup.hh" |
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36 | |
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37 | #include "G4Material.hh" |
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38 | #include "G4Tubs.hh" |
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39 | #include "G4LogicalVolume.hh" |
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40 | #include "G4PVPlacement.hh" |
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41 | #include "G4UniformMagField.hh" |
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42 | #include "G4FieldManager.hh" |
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43 | #include "G4TransportationManager.hh" |
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44 | #include "G4SDManager.hh" |
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45 | #include "G4RunManager.hh" |
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46 | |
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47 | #include "G4GeometryManager.hh" |
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48 | #include "G4PhysicalVolumeStore.hh" |
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49 | #include "G4LogicalVolumeStore.hh" |
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50 | #include "G4SolidStore.hh" |
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51 | |
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52 | #include "G4ios.hh" |
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53 | |
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54 | ///////////////////////////////////////////////////////////////////////////// |
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55 | // |
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56 | // |
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57 | |
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58 | F03DetectorConstruction::F03DetectorConstruction() |
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59 | : solidWorld(0), logicWorld(0), physiWorld(0), |
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60 | solidAbsorber(0),logicAbsorber(0), physiAbsorber(0), |
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61 | magField(0), fEmFieldSetup(0), calorimeterSD(0), |
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62 | AbsorberMaterial(0), fRadiatorMat(0), worldchanged(false), WorldMaterial(0) |
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63 | { |
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64 | // default parameter values of the calorimeter |
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65 | |
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66 | WorldSizeZ = 44000.*mm; |
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67 | WorldSizeR = 22000.*mm; |
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68 | |
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69 | AbsorberThickness = 1.0*mm; |
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70 | |
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71 | AbsorberRadius = 20000.*mm; |
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72 | |
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73 | zAbsorber = 21990.0*mm ; |
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74 | |
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75 | fRadThickness = 100*mm ; |
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76 | fGasGap = 100*mm ; |
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77 | fFoilNumber = 1 ; |
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78 | |
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79 | fDetGap = 1.0*mm ; |
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80 | |
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81 | fStartR = 40*cm ; |
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82 | fStartZ = 10.0*mm ; |
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83 | |
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84 | // create commands for interactive definition of the calorimeter |
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85 | |
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86 | detectorMessenger = new F03DetectorMessenger(this); |
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87 | |
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88 | DefineMaterials(); |
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89 | |
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90 | fEmFieldSetup = new F03FieldSetup() ; |
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91 | } |
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92 | |
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93 | ////////////////////////////////////////////////////////////////////////// |
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94 | // |
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95 | // |
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96 | |
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97 | F03DetectorConstruction::~F03DetectorConstruction() |
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98 | { |
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99 | delete detectorMessenger; |
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100 | if (fEmFieldSetup) delete fEmFieldSetup ; |
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101 | } |
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102 | |
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103 | ////////////////////////////////////////////////////////////////////////// |
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104 | // |
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105 | // |
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106 | |
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107 | G4VPhysicalVolume* F03DetectorConstruction::Construct() |
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108 | { |
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109 | return ConstructCalorimeter(); |
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110 | } |
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111 | |
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112 | ////////////////////////////////////////////////////////////////////////////// |
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113 | // |
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114 | // |
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115 | |
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116 | void F03DetectorConstruction::DefineMaterials() |
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117 | { |
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118 | // This function illustrates the possible ways to define materials |
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119 | |
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120 | G4String name, symbol ; // a=mass of a mole; |
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121 | G4double a, z, density ; // z=mean number of protons; |
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122 | G4int nel ; |
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123 | G4int ncomponents; |
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124 | G4double fractionmass, pressure, temperature; |
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125 | |
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126 | // |
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127 | // define Elements |
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128 | // |
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129 | |
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130 | a = 1.01*g/mole; |
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131 | G4Element* elH = new G4Element(name="Hydrogen",symbol="H" , z= 1., a); |
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132 | |
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133 | a = 12.01*g/mole; |
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134 | G4Element* elC = new G4Element(name="Carbon", symbol="C", z=6., a); |
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135 | |
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136 | a = 14.01*g/mole; |
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137 | G4Element* elN = new G4Element(name="Nitrogen",symbol="N" , z= 7., a); |
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138 | |
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139 | a = 16.00*g/mole; |
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140 | G4Element* elO = new G4Element(name="Oxygen" ,symbol="O" , z= 8., a); |
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141 | |
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142 | a = 39.948*g/mole; |
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143 | G4Element* elAr = new G4Element(name="Argon", symbol="Ar", z=18., a); |
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144 | |
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145 | // |
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146 | // define simple materials |
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147 | // |
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148 | |
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149 | // Mylar |
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150 | |
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151 | density = 1.39*g/cm3; |
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152 | G4Material* Mylar = new G4Material(name="Mylar", density, nel=3); |
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153 | Mylar->AddElement(elO,2); |
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154 | Mylar->AddElement(elC,5); |
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155 | Mylar->AddElement(elH,4); |
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156 | |
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157 | // Polypropelene |
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158 | |
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159 | G4Material* CH2 = new G4Material ("Polypropelene" , 0.91*g/cm3, 2); |
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160 | CH2->AddElement(elH,2); |
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161 | CH2->AddElement(elC,1); |
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162 | |
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163 | // Krypton as detector gas, STP |
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164 | |
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165 | density = 3.700*mg/cm3 ; |
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166 | a = 83.80*g/mole ; |
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167 | G4Material* Kr = new G4Material(name="Kr",z=36., a, density ); |
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168 | |
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169 | // Dry air (average composition) |
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170 | |
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171 | density = 1.7836*mg/cm3 ; // STP |
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172 | G4Material* Argon = new G4Material(name="Argon" , density, ncomponents=1); |
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173 | Argon->AddElement(elAr, 1); |
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174 | |
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175 | density = 1.25053*mg/cm3 ; // STP |
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176 | G4Material* Nitrogen = new G4Material(name="N2" , density, ncomponents=1); |
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177 | Nitrogen->AddElement(elN, 2); |
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178 | |
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179 | density = 1.4289*mg/cm3 ; // STP |
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180 | G4Material* Oxygen = new G4Material(name="O2" , density, ncomponents=1); |
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181 | Oxygen->AddElement(elO, 2); |
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182 | |
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183 | density = 1.2928*mg/cm3 ; // STP |
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184 | density *= 1.0e-8 ; // pumped vacuum |
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185 | temperature = STP_Temperature; |
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186 | pressure = 1.0e-8*STP_Pressure; |
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187 | |
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188 | G4Material* Air = new G4Material(name="Air" , density, ncomponents=3, |
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189 | kStateGas,temperature,pressure); |
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190 | Air->AddMaterial( Nitrogen, fractionmass = 0.7557 ) ; |
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191 | Air->AddMaterial( Oxygen, fractionmass = 0.2315 ) ; |
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192 | Air->AddMaterial( Argon, fractionmass = 0.0128 ) ; |
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193 | |
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194 | // Xenon as detector gas, STP |
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195 | |
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196 | density = 5.858*mg/cm3 ; |
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197 | a = 131.29*g/mole ; |
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198 | G4Material* Xe = new G4Material(name="Xenon",z=54., a, density ); |
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199 | |
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200 | // Carbon dioxide, STP |
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201 | |
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202 | density = 1.842*mg/cm3; |
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203 | G4Material* CarbonDioxide = new G4Material(name="CO2", density, nel=2); |
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204 | CarbonDioxide->AddElement(elC,1); |
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205 | CarbonDioxide->AddElement(elO,2); |
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206 | |
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207 | // 80% Xe + 20% CO2, STP |
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208 | |
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209 | density = 5.0818*mg/cm3 ; |
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210 | G4Material* Xe20CO2 = new G4Material(name="Xe20CO2" , density, ncomponents=2); |
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211 | Xe20CO2->AddMaterial( Xe, fractionmass = 0.922 ) ; |
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212 | Xe20CO2->AddMaterial( CarbonDioxide, fractionmass = 0.078 ) ; |
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213 | |
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214 | // 80% Kr + 20% CO2, STP |
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215 | |
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216 | density = 3.601*mg/cm3 ; |
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217 | G4Material* Kr20CO2 = new G4Material(name="Kr20CO2" , density, |
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218 | ncomponents=2); |
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219 | Kr20CO2->AddMaterial( Kr, fractionmass = 0.89 ) ; |
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220 | Kr20CO2->AddMaterial( CarbonDioxide, fractionmass = 0.11 ) ; |
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221 | |
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222 | |
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223 | G4cout << *(G4Material::GetMaterialTable()) << G4endl; |
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224 | |
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225 | //default materials of the calorimeter and TR radiator |
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226 | |
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227 | fRadiatorMat = Air ; // CH2 ; // Mylar ; |
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228 | |
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229 | AbsorberMaterial = Air ; // Kr20CO2 ; // XeCO2CF4 ; |
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230 | |
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231 | WorldMaterial = Air ; |
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232 | } |
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233 | |
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234 | ///////////////////////////////////////////////////////////////////////// |
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235 | // |
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236 | // |
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237 | |
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238 | G4VPhysicalVolume* F03DetectorConstruction::ConstructCalorimeter() |
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239 | { |
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240 | G4int j ; |
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241 | G4double zModule, zRadiator; |
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242 | |
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243 | // complete the Calor parameters definition and Print |
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244 | |
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245 | ComputeCalorParameters(); |
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246 | PrintCalorParameters(); |
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247 | |
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248 | // Cleanup old geometry |
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249 | |
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250 | if (physiWorld) |
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251 | { |
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252 | G4GeometryManager::GetInstance()->OpenGeometry(); |
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253 | G4PhysicalVolumeStore::GetInstance()->Clean(); |
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254 | G4LogicalVolumeStore::GetInstance()->Clean(); |
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255 | G4SolidStore::GetInstance()->Clean(); |
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256 | } |
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257 | |
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258 | solidWorld = new G4Tubs("World", // its name |
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259 | 0.,WorldSizeR,WorldSizeZ/2.,0.,twopi); // its size |
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260 | |
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261 | logicWorld = new G4LogicalVolume(solidWorld, // its solid |
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262 | WorldMaterial, // its material |
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263 | "World"); // its name |
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264 | |
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265 | physiWorld = new G4PVPlacement(0, // no rotation |
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266 | G4ThreeVector(), // at (0,0,0) |
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267 | "World", // its name |
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268 | logicWorld, // its logical volume |
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269 | 0, // its mother volume |
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270 | false, // no boolean operation |
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271 | 0); // copy number |
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272 | |
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273 | // TR radiator envelope |
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274 | |
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275 | G4double radThick = fFoilNumber*(fRadThickness + fGasGap) + fDetGap ; |
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276 | |
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277 | G4double zRad = zAbsorber - 20*cm - 0.5*radThick ; |
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278 | G4cout<<"zRad = "<<zRad/mm<<" mm"<<G4endl ; |
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279 | |
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280 | radThick *= 1.02 ; |
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281 | G4cout<<"radThick = "<<radThick/mm<<" mm"<<G4endl ; |
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282 | G4cout<<"fFoilNumber = "<<fFoilNumber<<G4endl ; |
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283 | G4cout<<"fRadiatorMat = "<<fRadiatorMat->GetName()<<G4endl ; |
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284 | G4cout<<"WorldMaterial = "<<WorldMaterial->GetName()<<G4endl ; |
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285 | |
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286 | solidRadiator = new G4Tubs("Radiator",0.0, |
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287 | 1.01*AbsorberRadius, |
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288 | 0.5*radThick,0.0,twopi ) ; |
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289 | |
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290 | logicRadiator = new G4LogicalVolume(solidRadiator, |
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291 | WorldMaterial, |
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292 | "Radiator"); |
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293 | |
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294 | // Set local field manager and local field in radiator and its daughters: |
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295 | |
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296 | G4bool allLocal = true ; |
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297 | |
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298 | logicRadiator->SetFieldManager( fEmFieldSetup->GetLocalFieldManager(), |
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299 | allLocal ) ; |
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300 | |
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301 | |
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302 | physiRadiator = new G4PVPlacement(0, |
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303 | G4ThreeVector(0,0,zRad), |
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304 | "Radiator", logicRadiator, |
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305 | physiWorld, false, 0 ); |
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306 | |
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307 | fSolidRadSlice = new G4Tubs("RadSlice",0.0, |
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308 | AbsorberRadius,0.5*fRadThickness,0.0,twopi ) ; |
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309 | |
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310 | fLogicRadSlice = new G4LogicalVolume(fSolidRadSlice,fRadiatorMat, |
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311 | "RadSlice",0,0,0); |
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312 | |
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313 | zModule = zRad + 0.5*radThick/1.02 ; |
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314 | G4cout<<"zModule = "<<zModule/mm<<" mm"<<G4endl ; |
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315 | |
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316 | for(j=0;j<fFoilNumber;j++) |
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317 | { |
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318 | |
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319 | zRadiator = zModule - j*(fRadThickness + fGasGap) ; |
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320 | G4cout<<zRadiator/mm<<" mm"<<"\t" ; |
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321 | // G4cout<<"j = "<<j<<"\t" ; |
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322 | |
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323 | fPhysicRadSlice = new G4PVPlacement(0,G4ThreeVector(0.,0.,zRadiator-zRad), |
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324 | "RadSlice",fLogicRadSlice, |
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325 | physiRadiator,false,j); |
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326 | } |
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327 | G4cout<<G4endl ; |
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328 | |
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329 | // Absorber |
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330 | |
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331 | if (AbsorberThickness > 0.) |
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332 | { |
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333 | solidAbsorber = new G4Tubs("Absorber", 1.0*mm, |
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334 | AbsorberRadius, |
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335 | AbsorberThickness/2., |
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336 | 0.0,twopi); |
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337 | |
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338 | logicAbsorber = new G4LogicalVolume(solidAbsorber, |
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339 | AbsorberMaterial, |
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340 | "Absorber"); |
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341 | |
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342 | physiAbsorber = new G4PVPlacement(0, |
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343 | G4ThreeVector(0.,0.,zAbsorber), |
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344 | "Absorber", |
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345 | logicAbsorber, |
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346 | physiWorld, |
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347 | false, |
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348 | 0); |
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349 | } |
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350 | |
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351 | // Sensitive Detectors: Absorber |
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352 | |
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353 | G4SDManager* SDman = G4SDManager::GetSDMpointer(); |
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354 | |
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355 | if(!calorimeterSD) |
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356 | { |
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357 | calorimeterSD = new F03CalorimeterSD("CalorSD",this); |
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358 | SDman->AddNewDetector( calorimeterSD ); |
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359 | } |
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360 | if (logicAbsorber) logicAbsorber->SetSensitiveDetector(calorimeterSD); |
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361 | |
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362 | return physiWorld; |
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363 | } |
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364 | |
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365 | //////////////////////////////////////////////////////////////////////////// |
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366 | // |
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367 | // |
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368 | |
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369 | void F03DetectorConstruction::PrintCalorParameters() |
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370 | { |
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371 | G4cout << "\n The WORLD is made of " |
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372 | << WorldSizeZ/mm << "mm of " << WorldMaterial->GetName() ; |
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373 | G4cout << ", the transverse size (R) of the world is " << WorldSizeR/mm << " mm. " << G4endl; |
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374 | G4cout << " The ABSORBER is made of " |
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375 | << AbsorberThickness/mm << "mm of " << AbsorberMaterial->GetName() ; |
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376 | G4cout << ", the transverse size (R) is " << AbsorberRadius/mm << " mm. " << G4endl; |
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377 | G4cout << " Z position of the (middle of the) absorber " << zAbsorber/mm << " mm." << G4endl; |
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378 | G4cout << G4endl; |
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379 | } |
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380 | |
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381 | /////////////////////////////////////////////////////////////////////////// |
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382 | // |
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383 | // |
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384 | |
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385 | void F03DetectorConstruction::SetAbsorberMaterial(G4String materialChoice) |
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386 | { |
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387 | // get the pointer to the material table |
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388 | const G4MaterialTable* theMaterialTable = G4Material::GetMaterialTable(); |
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389 | |
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390 | // search the material by its name |
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391 | G4Material* pttoMaterial; |
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392 | for (size_t J=0 ; J<theMaterialTable->size() ; J++) |
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393 | { |
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394 | pttoMaterial = (*theMaterialTable)[J]; |
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395 | if(pttoMaterial->GetName() == materialChoice) |
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396 | { |
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397 | AbsorberMaterial = pttoMaterial; |
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398 | logicAbsorber->SetMaterial(pttoMaterial); |
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399 | } |
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400 | } |
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401 | } |
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402 | |
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403 | //////////////////////////////////////////////////////////////////////////// |
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404 | // |
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405 | // |
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406 | |
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407 | void F03DetectorConstruction::SetWorldMaterial(G4String materialChoice) |
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408 | { |
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409 | // get the pointer to the material table |
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410 | const G4MaterialTable* theMaterialTable = G4Material::GetMaterialTable(); |
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411 | |
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412 | // search the material by its name |
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413 | G4Material* pttoMaterial; |
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414 | for (size_t J=0 ; J<theMaterialTable->size() ; J++) |
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415 | { |
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416 | pttoMaterial = (*theMaterialTable)[J]; |
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417 | if(pttoMaterial->GetName() == materialChoice) |
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418 | { |
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419 | WorldMaterial = pttoMaterial; |
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420 | logicWorld->SetMaterial(pttoMaterial); |
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421 | } |
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422 | } |
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423 | } |
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424 | |
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425 | /////////////////////////////////////////////////////////////////////////// |
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426 | // |
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427 | // |
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428 | |
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429 | void F03DetectorConstruction::SetAbsorberThickness(G4double val) |
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430 | { |
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431 | // change Absorber thickness and recompute the calorimeter parameters |
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432 | AbsorberThickness = val; |
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433 | ComputeCalorParameters(); |
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434 | } |
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435 | |
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436 | ///////////////////////////////////////////////////////////////////////////// |
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437 | // |
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438 | // |
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439 | |
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440 | void F03DetectorConstruction::SetAbsorberRadius(G4double val) |
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441 | { |
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442 | // change the transverse size and recompute the calorimeter parameters |
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443 | AbsorberRadius = val; |
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444 | ComputeCalorParameters(); |
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445 | } |
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446 | |
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447 | //////////////////////////////////////////////////////////////////////////// |
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448 | // |
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449 | // |
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450 | |
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451 | void F03DetectorConstruction::SetWorldSizeZ(G4double val) |
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452 | { |
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453 | worldchanged=true; |
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454 | WorldSizeZ = val; |
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455 | ComputeCalorParameters(); |
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456 | } |
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457 | |
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458 | /////////////////////////////////////////////////////////////////////////// |
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459 | // |
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460 | // |
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461 | |
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462 | void F03DetectorConstruction::SetWorldSizeR(G4double val) |
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463 | { |
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464 | worldchanged=true; |
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465 | WorldSizeR = val; |
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466 | ComputeCalorParameters(); |
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467 | } |
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468 | |
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469 | ////////////////////////////////////////////////////////////////////////////// |
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470 | // |
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471 | // |
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472 | |
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473 | void F03DetectorConstruction::SetAbsorberZpos(G4double val) |
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474 | { |
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475 | zAbsorber = val; |
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476 | ComputeCalorParameters(); |
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477 | } |
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478 | |
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479 | |
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480 | /////////////////////////////////////////////////////////////////////////////// |
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481 | // |
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482 | // |
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483 | |
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484 | void F03DetectorConstruction::UpdateGeometry() |
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485 | { |
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486 | G4RunManager::GetRunManager()->DefineWorldVolume(ConstructCalorimeter()); |
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487 | } |
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488 | |
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489 | // |
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490 | // |
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491 | //////////////////////////////////////////////////////////////////////////// |
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