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 | // |
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27 | // $Id: G4mfpTest.cc,v 1.4 2006/06/29 19:44:48 gunter 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 | // File name: G4mfpTest |
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33 | // |
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34 | // Author: Maria Grazia Pia |
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35 | // |
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36 | // Description: Tests MeanFreePath in electromagnetic processes |
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37 | // Output: ntuple with MeanFreePath and cross sections for |
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38 | // lowenergy and standard processes |
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39 | // |
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40 | // Modifications: |
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41 | // 2 August 2001 MGP Created |
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42 | // |
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43 | // ------------------------------------------------------------------- |
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44 | |
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45 | #include "globals.hh" |
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46 | #include "G4ios.hh" |
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47 | #include <fstream> |
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48 | #include <iomanip> |
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49 | |
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50 | #include "G4Material.hh" |
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51 | #include "G4VContinuousDiscreteProcess.hh" |
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52 | #include "G4ProcessManager.hh" |
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53 | #include "G4VeLowEnergyLoss.hh" |
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54 | #include "G4EnergyLossTables.hh" |
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55 | #include "G4VParticleChange.hh" |
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56 | #include "G4ParticleChange.hh" |
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57 | #include "G4DynamicParticle.hh" |
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58 | #include "G4Electron.hh" |
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59 | #include "G4Positron.hh" |
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60 | #include "G4Gamma.hh" |
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61 | #include "G4Box.hh" |
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62 | #include "G4PVPlacement.hh" |
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63 | #include "G4Step.hh" |
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64 | #include "G4GRSVolume.hh" |
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65 | #include "Randomize.hh" |
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66 | #include "G4UnitsTable.hh" |
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67 | |
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68 | #include "G4LowEnergyCompton.hh" |
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69 | #include "G4LowEnergyPolarizedCompton.hh" |
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70 | #include "G4ComptonScattering.hh" |
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71 | |
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72 | #include "G4LowEnergyPhotoElectric.hh" |
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73 | #include "G4PhotoElectricEffect.hh" |
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74 | |
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75 | #include "G4LowEnergyGammaConversion.hh" |
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76 | #include "G4GammaConversion.hh" |
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77 | |
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78 | #include "G4LowEnergyRayleigh.hh" |
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79 | #include "G4LowEnergyBremsstrahlung.hh" |
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80 | #include "G4eBremsstrahlung.hh" |
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81 | |
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82 | #include "G4LowEnergyIonisation.hh" |
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83 | #include "G4eIonisation.hh" |
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84 | |
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85 | #include "CLHEP/Hist/TupleManager.h" |
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86 | #include "CLHEP/Hist/HBookFile.h" |
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87 | #include "CLHEP/Hist/Histogram.h" |
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88 | #include "CLHEP/Hist/Tuple.h" |
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89 | |
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90 | #include "G4LowEnergyGammaConversionMG.hh" |
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91 | #include "G4LowEnergyRayleighMG.hh" |
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92 | #include "G4LowEnergyComptonMG.hh" |
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93 | #include "G4LowEnergyPhotoElectricMG.hh" |
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94 | |
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95 | |
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96 | HepTupleManager* hbookManager; |
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97 | |
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98 | int main() |
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99 | { |
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100 | // Setup |
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101 | |
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102 | G4int nIterations = 100000; |
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103 | G4int materialId = 3; |
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104 | G4int test = 0; |
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105 | |
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106 | G4cout.setf( ios::scientific, ios::floatfield ); |
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107 | |
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108 | // ------------------------------------------------------------------- |
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109 | |
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110 | // ---- HBOOK initialization |
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111 | |
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112 | |
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113 | hbookManager = new HBookFile("mfp.hbook", 58); |
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114 | assert (hbookManager != 0); |
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115 | |
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116 | // ---- Book a histogram and ntuples |
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117 | G4cout<<"Hbook file name: "<<((HBookFile*) hbookManager)->filename()<<endl; |
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118 | |
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119 | // ---- primary ntuple ------ |
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120 | HepTuple* ntuple1 = hbookManager->ntuple("MeanFreePath Ntuple"); |
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121 | assert (ntuple1 != 0); |
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122 | |
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123 | //--------- Material definitions --------- |
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124 | |
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125 | G4Material* Be = new G4Material("Beryllium", 4., 9.01*g/mole, 1.848*g/cm3); |
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126 | G4Material* Graphite = new G4Material("Graphite",6., 12.00*g/mole, 2.265*g/cm3 ); |
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127 | G4Material* Al = new G4Material("Aluminium", 13., 26.98*g/mole, 2.7 *g/cm3); |
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128 | G4Material* Si = new G4Material("Silicon", 14., 28.055*g/mole, 2.33*g/cm3); |
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129 | G4Material* LAr = new G4Material("LArgon", 18., 39.95*g/mole, 1.393*g/cm3); |
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130 | G4Material* Fe = new G4Material("Iron", 26., 55.85*g/mole, 7.87*g/cm3); |
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131 | G4Material* Cu = new G4Material("Copper", 29., 63.55*g/mole, 8.96*g/cm3); |
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132 | G4Material* W = new G4Material("Tungsten", 74., 183.85*g/mole, 19.30*g/cm3); |
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133 | G4Material* Pb = new G4Material("Lead", 82., 207.19*g/mole, 11.35*g/cm3); |
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134 | G4Material* U = new G4Material("Uranium", 92., 238.03*g/mole, 18.95*g/cm3); |
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135 | |
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136 | G4Element* H = new G4Element ("Hydrogen", "H", 1. , 1.01*g/mole); |
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137 | G4Element* O = new G4Element ("Oxygen" , "O", 8. , 16.00*g/mole); |
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138 | G4Element* C = new G4Element ("Carbon" , "C", 6. , 12.00*g/mole); |
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139 | G4Element* Cs = new G4Element ("Cesium" , "Cs", 55. , 132.905*g/mole); |
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140 | G4Element* I = new G4Element ("Iodide" , "I", 53. , 126.9044*g/mole); |
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141 | G4Element* N = new G4Element("Nitrogen" , "N" , 7., 14.01*g/mole); |
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142 | |
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143 | G4Material* maO = new G4Material("Oxygen", 8., 16.00*g/mole, 1.1*g/cm3); |
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144 | |
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145 | G4Material* water = new G4Material ("Water" , 1.*g/cm3, 2); |
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146 | water->AddElement(H,2); |
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147 | water->AddElement(O,1); |
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148 | |
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149 | G4Material* ethane = new G4Material ("Ethane" , 0.4241*g/cm3, 2); |
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150 | ethane->AddElement(H,6); |
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151 | ethane->AddElement(C,2); |
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152 | |
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153 | G4Material* csi = new G4Material ("CsI" , 4.53*g/cm3, 2); |
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154 | csi->AddElement(Cs,1); |
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155 | csi->AddElement(I,1); |
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156 | |
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157 | G4double fractionMass; |
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158 | G4Material* air = new G4Material("Air", 1.290*mg/cm3, 2); |
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159 | air->AddElement(N, fractionMass=0.7); |
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160 | air->AddElement(O, fractionMass=0.3); |
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161 | |
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162 | // Interactive set-up |
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163 | |
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164 | G4cout << "How many interactions? " << G4endl; |
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165 | G4cin >> nIterations; |
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166 | |
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167 | if (nIterations <= 0) G4Exception("Wrong input"); |
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168 | |
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169 | G4cout << "1) Compton 2) Photoelectric 3) GammaConversion 4) Rayleigh" << G4endl; |
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170 | G4cout << "5) Bremsstrahlung 6) Ionisation" << G4endl; |
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171 | G4int type; |
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172 | G4cin >> type; |
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173 | |
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174 | if (nIterations <= 0) G4Exception("Wrong input"); |
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175 | if (type < 1 || type > 6) G4Exception("Wrong input"); |
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176 | |
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177 | G4double initEnergy = 1*MeV; |
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178 | G4double initX = 0.; |
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179 | G4double initY = 0.; |
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180 | G4double initZ = 1.; |
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181 | |
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182 | static const G4MaterialTable* theMaterialTable = G4Material::GetMaterialTable(); |
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183 | |
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184 | G4int nMaterials = G4Material::GetNumberOfMaterials(); |
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185 | |
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186 | G4cout << "Available materials are: " << G4endl; |
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187 | for (G4int mat = 0; mat < nMaterials; mat++) |
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188 | { |
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189 | G4cout << mat << ") " |
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190 | << (*theMaterialTable)[mat]->GetName() |
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191 | << G4endl; |
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192 | } |
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193 | G4cout << "Which material? " << G4endl; |
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194 | G4cin >> materialId; |
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195 | |
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196 | G4Material* material = (*theMaterialTable)[materialId] ; |
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197 | |
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198 | G4cout << "The selected material is: " |
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199 | << material->GetName() |
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200 | << G4endl; |
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201 | |
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202 | G4double dimX = 1*mm; |
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203 | G4double dimY = 1*mm; |
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204 | G4double dimZ = 1*mm; |
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205 | |
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206 | // Geometry |
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207 | |
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208 | G4Box* theFrame = new G4Box ("Frame",dimX, dimY, dimZ); |
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209 | |
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210 | G4LogicalVolume* logicalFrame = new G4LogicalVolume(theFrame, |
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211 | (*theMaterialTable)[materialId], |
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212 | "LFrame", 0, 0, 0); |
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213 | logicalFrame->SetMaterial(material); |
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214 | |
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215 | G4PVPlacement* physicalFrame = new G4PVPlacement(0,G4ThreeVector(), |
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216 | "PFrame",logicalFrame,0,false,0); |
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217 | |
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218 | // Particle definitions |
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219 | |
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220 | G4ParticleDefinition* gamma = G4Gamma::GammaDefinition(); |
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221 | G4ParticleDefinition* electron = G4Electron::ElectronDefinition(); |
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222 | G4ParticleDefinition* positron = G4Positron::PositronDefinition(); |
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223 | |
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224 | gamma->SetCuts(1e-3*mm); |
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225 | electron->SetCuts(1e-3*mm); |
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226 | positron->SetCuts(1e-3*mm); |
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227 | |
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228 | // Electrons |
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229 | G4ProcessManager* eProcessManager = new G4ProcessManager(electron); |
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230 | electron->SetProcessManager(eProcessManager); |
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231 | |
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232 | // Bremsstrahlung |
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233 | G4LowEnergyBremsstrahlung* bremsstrahlung = new G4LowEnergyBremsstrahlung; |
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234 | eProcessManager->AddProcess(bremsstrahlung); |
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235 | bremsstrahlung->BuildPhysicsTable(*electron); |
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236 | G4eBremsstrahlung* bremsstrahlungStd = new G4eBremsstrahlung; |
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237 | eProcessManager->AddProcess(bremsstrahlungStd); |
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238 | bremsstrahlungStd->BuildPhysicsTable(*electron); |
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239 | |
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240 | // Ionisation |
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241 | G4LowEnergyIonisation* ionisation = new G4LowEnergyIonisation; |
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242 | eProcessManager->AddProcess(ionisation); |
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243 | ionisation->BuildPhysicsTable(*electron); |
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244 | G4eIonisation* ionisationStd = new G4eIonisation; |
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245 | eProcessManager->AddProcess(ionisationStd); |
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246 | ionisationStd->BuildPhysicsTable(*electron); |
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247 | |
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248 | // Positrons |
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249 | G4ProcessManager* positronProcessManager = new G4ProcessManager(positron); |
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250 | positron->SetProcessManager(positronProcessManager); |
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251 | positronProcessManager->AddProcess(bremsstrahlung); |
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252 | |
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253 | // Photons |
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254 | G4ProcessManager* gProcessManager = new G4ProcessManager(gamma); |
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255 | gamma->SetProcessManager(gProcessManager); |
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256 | |
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257 | // Compton |
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258 | G4LowEnergyCompton* compton = new G4LowEnergyCompton; |
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259 | G4LowEnergyComptonMG* comptonMG = new G4LowEnergyComptonMG; |
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260 | G4ComptonScattering* comptonStd = new G4ComptonScattering; |
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261 | gProcessManager->AddProcess(compton); |
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262 | compton->BuildPhysicsTable(*gamma); |
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263 | gProcessManager->AddProcess(comptonMG); |
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264 | comptonMG->BuildPhysicsTable(*gamma); |
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265 | gProcessManager->AddProcess(comptonStd); |
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266 | comptonStd->BuildPhysicsTable(*gamma); |
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267 | |
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268 | // Photoelectric |
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269 | G4LowEnergyPhotoElectric* photoelectric = new G4LowEnergyPhotoElectric; |
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270 | gProcessManager->AddProcess(photoelectric); |
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271 | photoelectric->BuildPhysicsTable(*gamma); |
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272 | G4PhotoElectricEffect* photoelectricStd = new G4PhotoElectricEffect; |
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273 | gProcessManager->AddProcess(photoelectricStd); |
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274 | photoelectricStd->BuildPhysicsTable(*gamma); |
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275 | G4LowEnergyPhotoElectricMG* photoelectricMG = new G4LowEnergyPhotoElectricMG; |
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276 | gProcessManager->AddProcess(photoelectricMG); |
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277 | photoelectricMG->BuildPhysicsTable(*gamma); |
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278 | |
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279 | // GammaConversion |
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280 | G4LowEnergyGammaConversion* gammaConversion = new G4LowEnergyGammaConversion; |
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281 | gProcessManager->AddProcess(gammaConversion); |
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282 | gammaConversion->BuildPhysicsTable(*gamma); |
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283 | G4GammaConversion* gammaConversionStd = new G4GammaConversion; |
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284 | gProcessManager->AddProcess(gammaConversionStd); |
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285 | gammaConversionStd->BuildPhysicsTable(*gamma); |
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286 | G4LowEnergyGammaConversionMG* gammaConversionMG = new G4LowEnergyGammaConversionMG; |
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287 | gProcessManager->AddProcess(gammaConversionMG); |
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288 | gammaConversionMG->BuildPhysicsTable(*gamma); |
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289 | |
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290 | // Rayleigh |
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291 | G4LowEnergyRayleigh* rayleigh = new G4LowEnergyRayleigh; |
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292 | gProcessManager->AddProcess(rayleigh); |
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293 | rayleigh->BuildPhysicsTable(*gamma); |
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294 | G4LowEnergyRayleighMG* rayleighMG = new G4LowEnergyRayleighMG; |
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295 | gProcessManager->AddProcess(rayleighMG); |
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296 | rayleighMG->BuildPhysicsTable(*gamma); |
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297 | |
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298 | // --------- Test GetMeanFreePath |
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299 | |
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300 | G4cout << "Mean Free Path in material " << material->GetName() << G4endl; |
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301 | |
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302 | G4double eMin = 250. * eV; |
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303 | G4double eMax = 200. * GeV; |
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304 | G4double diff = eMax - eMin; |
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305 | |
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306 | for (G4int iter=0; iter<nIterations; iter++) |
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307 | { |
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308 | G4double range = G4UniformRand(); |
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309 | G4double gEnergy; |
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310 | if (range < 0.1) |
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311 | { |
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312 | eMin = 250. * eV; |
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313 | eMax = 10. * keV; |
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314 | diff = eMax - eMin; |
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315 | G4double random = G4UniformRand(); |
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316 | gEnergy = eMin + diff * random; |
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317 | } |
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318 | else if (range < 0.2) |
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319 | { |
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320 | eMin = 10. * keV; |
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321 | eMax = 100. * keV; |
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322 | diff = eMax - eMin; |
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323 | G4double random = G4UniformRand(); |
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324 | gEnergy = eMin + diff * random; |
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325 | } |
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326 | else if (range < 0.3) |
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327 | { |
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328 | eMin = 100. * keV; |
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329 | eMax = 1. * MeV; |
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330 | diff = eMax - eMin; |
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331 | G4double random = G4UniformRand(); |
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332 | gEnergy = eMin + diff * random; |
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333 | } |
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334 | else if (range < 0.4) |
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335 | { |
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336 | eMin = 1. * MeV; |
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337 | eMax = 10. * MeV; |
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338 | diff = eMax - eMin; |
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339 | G4double random = G4UniformRand(); |
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340 | gEnergy = eMin + diff * random; |
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341 | } |
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342 | else if (range < 0.5) |
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343 | { |
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344 | eMin = 10. * MeV; |
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345 | eMax = 100. * MeV; |
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346 | diff = eMax - eMin; |
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347 | G4double random = G4UniformRand(); |
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348 | gEnergy = eMin + diff * random; |
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349 | } |
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350 | else if (range < 0.6) |
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351 | { |
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352 | eMin = 100. * MeV; |
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353 | eMax = 1. * GeV; |
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354 | diff = eMax - eMin; |
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355 | G4double random = G4UniformRand(); |
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356 | gEnergy = eMin + diff * random; |
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357 | } |
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358 | else if (range < 0.8) |
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359 | { |
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360 | eMin = 1. * GeV; |
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361 | eMax = 100. * GeV; |
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362 | diff = eMax - eMin; |
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363 | G4double random = G4UniformRand(); |
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364 | gEnergy = eMin + diff * random; |
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365 | } |
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366 | else |
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367 | { |
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368 | gEnergy = eMin + G4UniformRand(); |
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369 | } |
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370 | |
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371 | if (type == 3 && gEnergy < 1.0220*MeV) gEnergy = 1.02200 * MeV; |
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372 | |
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373 | // Create a DynamicParticle |
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374 | G4ParticleMomentum gDirection(initX,initY,initZ); |
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375 | G4DynamicParticle dynamicPhoton(G4Gamma::Gamma(),gDirection,gEnergy); |
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376 | |
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377 | // Track |
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378 | |
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379 | G4ThreeVector aPosition(0.,0.,0.); |
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380 | G4ThreeVector newPosition(0.,0.,1.*mm); |
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381 | G4double aTime = 0. ; |
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382 | |
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383 | G4Track* gTrack = new G4Track(&dynamicPhoton,aTime,aPosition); |
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384 | |
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385 | // do I really need this? |
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386 | |
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387 | G4GRSVolume* touche = new G4GRSVolume(physicalFrame, 0, aPosition); |
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388 | gTrack->SetTouchable(touche); |
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389 | |
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390 | // Step |
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391 | |
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392 | G4Step* step = new G4Step(); |
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393 | step->SetTrack(gTrack); |
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394 | G4StepPoint* aPoint = new G4StepPoint(); |
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395 | aPoint->SetPosition(aPosition); |
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396 | aPoint->SetMaterial(material); |
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397 | G4double safety = 100.*cm; |
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398 | aPoint->SetSafety(safety); |
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399 | step->SetPreStepPoint(aPoint); |
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400 | G4StepPoint* newPoint = new G4StepPoint(); |
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401 | newPoint->SetPosition(newPosition); |
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402 | newPoint->SetMaterial(material); |
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403 | newPoint->SetSafety(safety); |
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404 | step->SetPostStepPoint(newPoint); |
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405 | step->SetStepLength(1*micrometer); |
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406 | gTrack->SetStep(step); |
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407 | |
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408 | G4ForceCondition* force = new G4ForceCondition; |
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409 | |
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410 | G4double mfp; |
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411 | G4double mfpStd; |
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412 | G4double mfpMG = 0.; |
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413 | |
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414 | if (type == 1) |
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415 | { |
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416 | mfp = compton->GetMeanFreePath(*gTrack,0.,force); |
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417 | mfpStd = comptonStd->GetMeanFreePath(*gTrack,0.,force); |
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418 | mfpMG = comptonMG->DumpMeanFreePath(*gTrack,0.,force); |
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419 | } |
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420 | else if (type == 2) |
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421 | { |
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422 | mfp = photoelectric->GetMeanFreePath(*gTrack,0.,force); |
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423 | mfpStd = photoelectricStd->GetMeanFreePath(*gTrack,0.,force); |
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424 | mfpMG = photoelectricMG->DumpMeanFreePath(*gTrack,0.,force); |
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425 | } |
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426 | else if (type == 3) |
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427 | { |
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428 | mfp = gammaConversion->GetMeanFreePath(*gTrack,0.,force); |
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429 | mfpStd = gammaConversionStd->GetMeanFreePath(*gTrack,0.,force); |
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430 | mfpMG = gammaConversionMG->DumpMeanFreePath(*gTrack,0.,force); |
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431 | } |
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432 | else if (type == 4) |
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433 | { |
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434 | mfp = rayleigh->GetMeanFreePath(*gTrack,0.,force); |
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435 | // mfpStd = rayleighStd->GetMeanFreePath(*gTrack,0.,force); |
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436 | mfpMG = rayleighMG->DumpMeanFreePath(*gTrack,0.,force); |
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437 | } |
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438 | else if (type == 5) |
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439 | { |
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440 | mfp = bremsstrahlung->GetMeanFreePath(*gTrack,0.,force); |
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441 | mfpStd = bremsstrahlungStd->GetMeanFreePath(*gTrack,0.,force); |
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442 | // mfpMG = bremsstrahlungMG->DumpMeanFreePath(*gTrack,0.,force); |
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443 | } |
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444 | else |
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445 | { |
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446 | mfp = ionisation->GetMeanFreePath(*gTrack,0.,force); |
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447 | mfpStd = ionisationStd->GetMeanFreePath(*gTrack,0.,force); |
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448 | // mfpMG = ionisationMG->DumpMeanFreePath(*gTrack,0.,force); |
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449 | } |
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450 | |
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451 | G4double sigma = 0.; |
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452 | if (mfp > 0.) sigma = 1./mfp; |
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453 | G4double sigmaMG = 0.; |
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454 | if (mfpMG > 0.) sigmaMG = 1./mfpMG; |
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455 | G4double sigmaStd = 0.; |
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456 | if (mfpStd > 0.) sigmaStd = 1./mfpStd; |
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457 | |
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458 | G4double kineticEnergy = gTrack->GetKineticEnergy(); |
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459 | |
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460 | G4cout << iter << ") e = " << gEnergy |
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461 | << " - mfp = " << mfp |
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462 | << "; mfpMG = " << mfpMG << G4endl; |
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463 | |
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464 | ntuple1->column("e", gEnergy); |
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465 | ntuple1->column("ekin", kineticEnergy); |
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466 | ntuple1->column("mfp", mfp); |
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467 | ntuple1->column("mfpmg", mfpMG); |
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468 | ntuple1->column("mfpstd", mfpStd); |
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469 | ntuple1->column("sigma", sigma); |
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470 | ntuple1->column("sigmamg", sigmaMG); |
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471 | ntuple1->column("sigmastd", sigmaStd); |
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472 | ntuple1->dumpData(); |
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473 | } |
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474 | |
---|
475 | |
---|
476 | cout << "End of iteration " << G4endl; |
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477 | hbookManager->write(); |
---|
478 | delete hbookManager; |
---|
479 | |
---|
480 | // delete materials and elements |
---|
481 | // delete Be; |
---|
482 | // delete Graphite; |
---|
483 | // delete Al; |
---|
484 | // delete Si; |
---|
485 | // delete LAr; |
---|
486 | // delete Fe; |
---|
487 | // delete Cu; |
---|
488 | // delete W; |
---|
489 | // delete Pb; |
---|
490 | // delete U; |
---|
491 | // delete H; |
---|
492 | // delete maO; |
---|
493 | // delete C; |
---|
494 | // delete Cs; |
---|
495 | // delete I; |
---|
496 | // delete O; |
---|
497 | // delete water; |
---|
498 | // delete ethane; |
---|
499 | // delete csi; |
---|
500 | // delete step; |
---|
501 | // delete touche; |
---|
502 | // delete Be; |
---|
503 | // delete Graphite; |
---|
504 | // delete Al; |
---|
505 | // delete Si; |
---|
506 | // delete LAr; |
---|
507 | // delete Fe; |
---|
508 | // delete Cu; |
---|
509 | // delete W; |
---|
510 | // delete Pb; |
---|
511 | // delete U; |
---|
512 | // delete H; |
---|
513 | // delete maO; |
---|
514 | // delete C; |
---|
515 | // delete Cs; |
---|
516 | // delete I; |
---|
517 | // delete O; |
---|
518 | // delete water; |
---|
519 | // delete ethane; |
---|
520 | // delete csi; |
---|
521 | // delete step; |
---|
522 | // delete touche; |
---|
523 | |
---|
524 | cout << "END OF THE MAIN PROGRAM" << G4endl; |
---|
525 | } |
---|
526 | |
---|
527 | |
---|
528 | |
---|
529 | |
---|
530 | |
---|
531 | |
---|
532 | |
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533 | |
---|
534 | |
---|
535 | |
---|
536 | |
---|
537 | |
---|