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 | // ------------------------------------------------------------ |
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28 | // GEANT 4 class header file |
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29 | // |
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30 | // History: based on object model of |
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31 | // 2nd December 1995, G.Cosmo |
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32 | // ---------- G4hLowEnergyIonisation physics process ----- |
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33 | // by Vladimir Ivanchenko, 14 July 1999 |
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34 | // was made on the base of G4hIonisation class |
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35 | // developed by Laszlo Urban |
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36 | // ************************************************************ |
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37 | |
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38 | // ************************************************************ |
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39 | // 28 July 1999 V.Ivanchenko cleen up |
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40 | // 17 August 1999 G.Mancinelli implemented ICRU parametrization (protons) |
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41 | // 20 August 1999 G.Mancinelli implemented ICRU parametrization (alpha) |
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42 | // 31 August 1999 V.Ivanchenko update and cleen up |
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43 | // 23 May 2000 MG Pia Clean up for QAO model |
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44 | // 25 July 2000 V.Ivanchenko New design iteration |
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45 | // 09 August 2000 V.Ivanchenko Add GetContinuousStepLimit |
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46 | // 17 August 2000 V.Ivanchenko Add IonFluctuationModel |
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47 | // 23 Oct 2000 V.Ivanchenko Renew comments |
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48 | // 30 Oct 2001 V.Ivanchenko Add minGammaEnergy and minElectronEnergy |
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49 | // 07 Dec 2001 V.Ivanchenko Add SetFluorescence method |
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50 | // 26 Feb 2002 V.Ivanchenko Add initialMass for GenericIons |
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51 | // 21 Jan 2003 V.Ivanchenko Cut per region |
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52 | // ------------------------------------------------------------ |
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53 | |
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54 | // Class Description: |
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55 | // Ionisation process of charged hadrons and ions, including low energy |
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56 | // extensions |
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57 | // The physics model is described in CERN-OPEN-99-121 and CERN-OPEN-99-300. |
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58 | // The user may select parametrisation tables for electronic |
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59 | // stopping powers and nuclear stopping powers |
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60 | // The list of available tables: |
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61 | // Electronic stopping powers: "ICRU_49p" (default), "ICRU_49He", |
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62 | // "Ziegler1977p", "Ziegler1985p", |
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63 | // "Ziegler1977He" |
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64 | // Nuclear stopping powers: "ICRU_49" (default), "Ziegler1977", |
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65 | // "Ziegler1985" |
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66 | // Further documentation available from http://www.ge.infn.it/geant4/lowE |
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67 | // and in the Physics Reference Manual |
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68 | |
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69 | // ------------------------------------------------------------ |
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70 | |
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71 | #ifndef G4hLowEnergyIonisation_h |
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72 | #define G4hLowEnergyIonisation_h 1 |
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73 | |
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74 | #include "globals.hh" |
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75 | #include "G4hLowEnergyLoss.hh" |
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76 | #include "G4VLowEnergyModel.hh" |
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77 | #include "G4Track.hh" |
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78 | #include "G4Step.hh" |
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79 | #include "G4Electron.hh" |
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80 | #include "G4PhysicsLogVector.hh" |
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81 | #include "G4PhysicsLinearVector.hh" |
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82 | #include "G4hNuclearStoppingModel.hh" |
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83 | #include "G4hBetheBlochModel.hh" |
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84 | #include "G4hParametrisedLossModel.hh" |
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85 | #include "G4QAOLowEnergyLoss.hh" |
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86 | #include "G4hIonEffChargeSquare.hh" |
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87 | #include "G4IonChuFluctuationModel.hh" |
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88 | #include "G4IonYangFluctuationModel.hh" |
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89 | #include "G4AtomicDeexcitation.hh" |
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90 | #include "G4MaterialCutsCouple.hh" |
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91 | #include <map> |
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92 | |
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93 | class G4VEMDataSet; |
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94 | class G4ShellVacancy; |
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95 | class G4VhShellCrossSection; |
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96 | |
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97 | class G4hLowEnergyIonisation : public G4hLowEnergyLoss |
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98 | { |
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99 | public: // With description |
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100 | |
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101 | G4hLowEnergyIonisation(const G4String& processName = "hLowEIoni"); |
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102 | // The ionisation process for hadrons/ions to be include in the |
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103 | // UserPhysicsList |
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104 | |
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105 | ~G4hLowEnergyIonisation(); |
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106 | // Destructor |
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107 | |
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108 | G4bool IsApplicable(const G4ParticleDefinition&); |
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109 | // True for all charged hadrons/ions |
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110 | |
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111 | void BuildPhysicsTable(const G4ParticleDefinition& aParticleType) ; |
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112 | // Build physics table during initialisation |
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113 | |
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114 | G4double GetMeanFreePath(const G4Track& track, |
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115 | G4double previousStepSize, |
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116 | enum G4ForceCondition* condition ); |
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117 | // Return MeanFreePath until delta-electron production |
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118 | |
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119 | void PrintInfoDefinition() const; |
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120 | // Print out of the class parameters |
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121 | |
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122 | void SetHighEnergyForProtonParametrisation(G4double energy) |
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123 | {protonHighEnergy = energy;} ; |
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124 | // Definition of the boundary proton energy. For higher energies |
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125 | // Bethe-Bloch formula is used, for lower energies a parametrisation |
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126 | // of the energy losses is performed. Default is 2 MeV. |
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127 | |
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128 | void SetLowEnergyForProtonParametrisation(G4double energy) |
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129 | {protonLowEnergy = energy;} ; |
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130 | // Set of the boundary proton energy. For lower energies |
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131 | // the Free Electron Gas model is used for the energy losses. |
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132 | // Default is 1 keV. |
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133 | |
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134 | void SetHighEnergyForAntiProtonParametrisation(G4double energy) |
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135 | {antiProtonHighEnergy = energy;} ; |
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136 | // Set of the boundary antiproton energy. For higher energies |
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137 | // Bethe-Bloch formula is used, for lower energies parametrisation |
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138 | // of the energy losses is performed. Default is 2 MeV. |
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139 | |
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140 | void SetLowEnergyForAntiProtonParametrisation(G4double energy) |
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141 | {antiProtonLowEnergy = energy;} ; |
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142 | // Set of the boundary antiproton energy. For lower energies |
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143 | // the Free Electron Gas model is used for the energy losses. |
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144 | // Default is 1 keV. |
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145 | |
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146 | G4double GetContinuousStepLimit(const G4Track& track, |
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147 | G4double previousStepSize, |
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148 | G4double currentMinimumStep, |
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149 | G4double& currentSafety); |
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150 | // Calculation of the step limit due to ionisation losses |
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151 | |
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152 | void SetElectronicStoppingPowerModel(const G4ParticleDefinition* aParticle, |
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153 | const G4String& dedxTable); |
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154 | // This method defines the electron ionisation parametrisation method |
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155 | // via the name of the table. Default is "ICRU_49p". |
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156 | |
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157 | void SetNuclearStoppingPowerModel(const G4String& dedxTable) |
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158 | {theNuclearTable = dedxTable; SetNuclearStoppingOn();}; |
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159 | // This method defines the nuclear ionisation parametrisation method |
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160 | // via the name of the table. Default is "ICRU_49". |
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161 | |
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162 | void SetNuclearStoppingOn() {nStopping = true;}; |
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163 | // This method switch on calculation of the nuclear stopping power. |
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164 | |
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165 | void SetNuclearStoppingOff() {nStopping = false;}; |
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166 | // This method switch off calculation of the nuclear stopping power. |
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167 | |
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168 | void SetBarkasOn() {theBarkas = true;}; |
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169 | // This method switch on calculation of the Barkas and Bloch effects. |
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170 | |
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171 | void SetBarkasOff() {theBarkas = false;}; |
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172 | // This method switch off calculation of the Barkas and Bloch effects. |
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173 | |
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174 | void SetFluorescence(const G4bool val) {theFluo = val;}; |
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175 | // This method switch on/off simulation of the fluorescence of the media. |
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176 | |
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177 | G4VParticleChange* AlongStepDoIt(const G4Track& trackData , |
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178 | const G4Step& stepData ) ; |
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179 | // Function to determine total energy deposition on the step |
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180 | |
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181 | G4VParticleChange* PostStepDoIt(const G4Track& track, |
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182 | const G4Step& Step ) ; |
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183 | // Simulation of delta rays production. |
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184 | |
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185 | G4double ComputeDEDX(const G4ParticleDefinition* aParticle, |
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186 | const G4MaterialCutsCouple* couple, |
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187 | G4double kineticEnergy); |
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188 | // This method returns electronic dE/dx for protons or antiproton. |
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189 | |
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190 | void SetCutForSecondaryPhotons(G4double cut); |
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191 | // Set threshold energy for fluorescence |
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192 | |
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193 | void SetCutForAugerElectrons(G4double cut); |
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194 | // Set threshold energy for Auger electron production |
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195 | |
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196 | void ActivateAugerElectronProduction(G4bool val); |
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197 | // Set Auger electron production flag on/off |
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198 | |
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199 | |
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200 | protected: |
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201 | |
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202 | private: |
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203 | |
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204 | void InitializeMe(); |
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205 | |
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206 | void InitializeParametrisation(); |
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207 | |
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208 | void BuildLossTable(const G4ParticleDefinition& aParticleType); |
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209 | |
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210 | void BuildDataForFluorescence(const G4ParticleDefinition& aParticleType); |
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211 | |
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212 | void BuildLambdaTable(const G4ParticleDefinition& aParticleType); |
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213 | |
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214 | void SetProtonElectronicStoppingPowerModel(const G4String& dedxTable) |
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215 | {theProtonTable = dedxTable ;}; |
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216 | // This method defines the ionisation parametrisation method via its name |
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217 | |
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218 | void SetAntiProtonElectronicStoppingPowerModel(const G4String& dedxTable) |
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219 | {theAntiProtonTable = dedxTable ;}; |
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220 | |
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221 | G4double ComputeMicroscopicCrossSection( |
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222 | const G4ParticleDefinition& aParticleType, |
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223 | G4double kineticEnergy, |
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224 | G4double atomicNumber, |
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225 | G4double deltaCutInEnergy) const; |
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226 | |
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227 | G4double GetConstraints(const G4DynamicParticle* particle, |
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228 | const G4MaterialCutsCouple* couple); |
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229 | // Function to determine StepLimit |
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230 | |
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231 | G4double ProtonParametrisedDEDX(const G4MaterialCutsCouple* couple, |
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232 | G4double kineticEnergy) const; |
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233 | |
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234 | G4double AntiProtonParametrisedDEDX(const G4MaterialCutsCouple* couple, |
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235 | G4double kineticEnergy) const; |
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236 | |
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237 | G4double DeltaRaysEnergy(const G4MaterialCutsCouple* couple, |
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238 | G4double kineticEnergy, |
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239 | G4double particleMass) const; |
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240 | // This method returns average energy loss due to delta-rays emission with |
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241 | // energy higher than the cut energy for given material. |
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242 | |
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243 | G4double BarkasTerm(const G4Material* material, |
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244 | G4double kineticEnergy) const; |
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245 | // Function to compute the Barkas term for protons |
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246 | |
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247 | G4double BlochTerm(const G4Material* material, |
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248 | G4double kineticEnergy, |
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249 | G4double cSquare) const; |
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250 | // Function to compute the Bloch term for protons |
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251 | |
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252 | G4double ElectronicLossFluctuation(const G4DynamicParticle* particle, |
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253 | const G4MaterialCutsCouple* material, |
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254 | G4double meanLoss, |
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255 | G4double step) const; |
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256 | // Function to sample electronic losses |
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257 | |
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258 | std::vector<G4DynamicParticle*>* DeexciteAtom(const G4MaterialCutsCouple* couple, |
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259 | G4double incidentEnergy, |
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260 | G4double hMass, |
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261 | G4double eLoss); |
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262 | |
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263 | G4int SelectRandomAtom(const G4MaterialCutsCouple* couple, |
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264 | G4double kineticEnergy) const; |
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265 | |
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266 | // hide assignment operator |
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267 | G4hLowEnergyIonisation & operator=(const G4hLowEnergyIonisation &right); |
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268 | G4hLowEnergyIonisation(const G4hLowEnergyIonisation&); |
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269 | |
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270 | private: |
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271 | // private data members ............................... |
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272 | G4VLowEnergyModel* theBetheBlochModel; |
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273 | G4VLowEnergyModel* theProtonModel; |
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274 | G4VLowEnergyModel* theAntiProtonModel; |
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275 | G4VLowEnergyModel* theIonEffChargeModel; |
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276 | G4VLowEnergyModel* theNuclearStoppingModel; |
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277 | G4VLowEnergyModel* theIonChuFluctuationModel; |
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278 | G4VLowEnergyModel* theIonYangFluctuationModel; |
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279 | std::map<G4int,G4double,std::less<G4int> > totalCrossSectionMap; |
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280 | |
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281 | // name of parametrisation table of electron stopping power |
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282 | G4String theProtonTable; |
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283 | G4String theAntiProtonTable; |
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284 | G4String theNuclearTable; |
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285 | |
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286 | // interval of parametrisation of electron stopping power |
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287 | G4double protonLowEnergy; |
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288 | G4double protonHighEnergy; |
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289 | G4double antiProtonLowEnergy; |
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290 | G4double antiProtonHighEnergy; |
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291 | |
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292 | // flag of parametrisation of nucleus stopping power |
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293 | G4bool nStopping; |
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294 | G4bool theBarkas; |
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295 | |
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296 | G4DataVector cutForDelta; |
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297 | G4DataVector cutForGamma; |
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298 | G4double minGammaEnergy; |
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299 | G4double minElectronEnergy; |
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300 | G4PhysicsTable* theMeanFreePathTable; |
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301 | |
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302 | const G4double paramStepLimit; // parameter limits the step at low energy |
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303 | |
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304 | G4double fdEdx; // computed in GetContraints |
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305 | G4double fRangeNow ; // |
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306 | G4double charge; // |
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307 | G4double chargeSquare; // |
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308 | G4double initialMass; // mass to calculate Lambda tables |
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309 | G4double fBarkas; |
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310 | |
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311 | G4AtomicDeexcitation deexcitationManager; |
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312 | G4ShellVacancy* shellVacancy; |
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313 | G4VhShellCrossSection* shellCS; |
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314 | std::vector<G4VEMDataSet*> zFluoDataVector; |
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315 | G4bool theFluo; |
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316 | G4bool expFlag; |
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317 | }; |
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318 | |
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319 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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320 | |
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321 | inline G4double G4hLowEnergyIonisation::GetContinuousStepLimit( |
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322 | const G4Track& track, |
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323 | G4double, |
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324 | G4double currentMinimumStep, |
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325 | G4double&) |
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326 | { |
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327 | G4double Step = |
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328 | GetConstraints(track.GetDynamicParticle(),track.GetMaterialCutsCouple()) ; |
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329 | |
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330 | if((Step>0.0)&&(Step<currentMinimumStep)) |
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331 | currentMinimumStep = Step ; |
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332 | |
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333 | return Step ; |
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334 | } |
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335 | |
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336 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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337 | |
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338 | inline G4bool G4hLowEnergyIonisation::IsApplicable( |
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339 | const G4ParticleDefinition& particle) |
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340 | { |
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341 | return(particle.GetPDGCharge() != 0.0 |
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342 | && particle.GetPDGMass() > proton_mass_c2*0.1); |
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343 | } |
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344 | |
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345 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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346 | |
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347 | #endif |
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348 | |
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349 | |
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350 | |
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351 | |
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352 | |
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353 | |
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354 | |
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355 | |
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