1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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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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12 | // * institutes,nor the agencies providing financial support for this * |
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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 | // $Id: Materials.cc,v 1.1 2007/11/16 14:16:46 kmura Exp $ |
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27 | // $Name: $ |
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28 | // |
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29 | // ==================================================================== |
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30 | // Materials.cc |
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31 | // |
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32 | // 2007 Q |
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33 | // ==================================================================== |
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34 | #include "Materials.hh" |
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35 | #include "G4Material.hh" |
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36 | |
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37 | // ==================================================================== |
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38 | // |
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39 | // class description |
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40 | // |
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41 | // ==================================================================== |
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42 | |
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43 | ////////////////////// |
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44 | Materials::Materials() |
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45 | ////////////////////// |
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46 | { |
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47 | } |
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48 | |
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49 | |
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50 | /////////////////////// |
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51 | Materials::~Materials() |
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52 | /////////////////////// |
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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 | void Materials::Construct() |
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59 | /////////////////////////// |
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60 | { |
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61 | G4double A, Z; |
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62 | |
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63 | // ------------------------------------------------------------------------ |
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64 | // Elements |
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65 | // ------------------------------------------------------------------------ |
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66 | G4Element* elH = new G4Element("Hydrogen","H", Z=1., A=1.00794*g/mole); |
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67 | G4Element* elC = new G4Element("Carbon", "C", Z=6., A= 12.011 *g/mole); |
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68 | G4Element* elN = new G4Element("Nitrogen","N", Z=7., A= 14.00674*g/mole); |
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69 | G4Element* elO = new G4Element("Oxygen", "O", Z=8., A= 15.9994*g/mole); |
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70 | G4Element* elNa = new G4Element("Sodium", "Na", Z=11., A= 22.989768*g/mole); |
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71 | G4Element* elSi = new G4Element("Silicon", "Si", Z=14., A= 28.0855*g/mole); |
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72 | G4Element* elAr = new G4Element("Argon", "Ar", Z=18., A= 39.948*g/mole); |
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73 | G4Element* elI = new G4Element("Iodine", "I", Z=53., A= 126.90447*g/mole); |
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74 | G4Element* elCs = new G4Element("Cesium", "Cs", Z=55., A= 132.90543*g/mole); |
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75 | |
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76 | // ------------------------------------------------------------------------ |
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77 | // Materials |
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78 | // ------------------------------------------------------------------------ |
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79 | G4double density, massfraction; |
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80 | G4int natoms, nel; |
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81 | |
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82 | // temperature of experimental hall is controlled at 20 degree. |
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83 | const G4double expTemp= STP_Temperature+20.*kelvin; |
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84 | |
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85 | // vacuum |
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86 | density= universe_mean_density; |
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87 | G4Material* Vacuum= new G4Material("Vacuum", density, nel=2); |
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88 | Vacuum-> AddElement(elN, .7); |
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89 | Vacuum-> AddElement(elO, .3); |
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90 | |
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91 | // air |
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92 | density= 1.2929e-03 *g/cm3; // at 20 degree |
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93 | G4Material* Air= new G4Material("Air", density, nel=3, |
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94 | kStateGas, expTemp); |
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95 | G4double ttt= 75.47+23.20+1.28; |
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96 | Air-> AddElement(elN, massfraction= 75.47/ttt); |
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97 | Air-> AddElement(elO, massfraction= 23.20/ttt); |
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98 | Air-> AddElement(elAr, massfraction= 1.28/ttt); |
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99 | |
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100 | // Ar gas |
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101 | A= 39.948 *g/mole; |
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102 | const G4double denAr= 1.782e-03 *g/cm3 * STP_Temperature/expTemp; |
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103 | G4Material* Ar= new G4Material("ArgonGas", Z=18., A, denAr, |
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104 | kStateGas, expTemp); |
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105 | |
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106 | // ethane (C2H6) |
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107 | const G4double denEthane= 1.356e-3 *g/cm3 * STP_Temperature/expTemp; |
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108 | G4Material* Ethane= new G4Material("Ethane", denEthane, nel=2, |
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109 | kStateGas, expTemp); |
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110 | Ethane-> AddElement(elC, natoms=2); |
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111 | Ethane-> AddElement(elH, natoms=6); |
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112 | |
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113 | // Ar(50%) + ethane(50%) mixture |
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114 | density= (denAr+denEthane)/2.; |
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115 | G4Material* ArEthane= new G4Material("ArEthane", density, nel=2, |
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116 | kStateGas, expTemp); |
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117 | ArEthane-> AddMaterial(Ar, massfraction= denAr/density/2.); |
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118 | ArEthane-> AddMaterial(Ethane, massfraction= denEthane/density/2.); |
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119 | |
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120 | // silicon |
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121 | A= 28.0855 *g/mole; |
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122 | density= 2.33 *g/cm3; |
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123 | new G4Material("SiliconWafer", Z=14., A, density); |
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124 | |
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125 | // alminium |
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126 | A= 26.98 *g/mole; |
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127 | density= 2.70 *g/cm3; |
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128 | new G4Material("Al", Z=13., A, density); |
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129 | |
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130 | // iron |
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131 | A= 55.847 *g/mole; |
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132 | density= 7.87 *g/cm3; |
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133 | new G4Material("Iron", Z=26., A, density); |
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134 | |
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135 | // lead |
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136 | A= 207.2 *g/mole; |
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137 | density= 11.35 *g/cm3; |
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138 | new G4Material("Lead", Z=82., A, density); |
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139 | |
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140 | // scintillator (Polystyene(C6H5CH=CH2)) |
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141 | density= 1.032 *g/cm3; |
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142 | G4Material* Scinti= new G4Material("Scinti", density, nel=2); |
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143 | Scinti-> AddElement(elC, natoms=8); |
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144 | Scinti-> AddElement(elH, natoms=8); |
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145 | |
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146 | // quartz (SiO2, crystalline) |
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147 | density= 2.64 *g/cm3; |
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148 | G4Material* Quartz= new G4Material("Quartz", density, nel= 2); |
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149 | Quartz-> AddElement(elSi, natoms=1); |
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150 | Quartz-> AddElement(elO, natoms=2); |
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151 | |
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152 | // NaI crystal |
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153 | density= 3.67 *g/cm3; |
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154 | G4Material* NaI= new G4Material("NaI", density, nel= 2); |
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155 | NaI-> AddElement(elNa, natoms=1); |
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156 | NaI-> AddElement(elI, natoms=1); |
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157 | |
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158 | // CsI crystal |
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159 | density= 4.51 *g/cm3; |
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160 | G4Material* CsI= new G4Material("CsI", density, nel= 2); |
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161 | CsI-> AddElement(elCs, natoms=1); |
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162 | CsI-> AddElement(elI, natoms=1); |
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163 | |
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164 | } |
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