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 | // =========================================================================== |
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29 | // GEANT4 class source file |
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30 | // |
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31 | // Class: G4IonDEDXHandler |
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32 | // |
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33 | // Author: Anton Lechner (Anton.Lechner@cern.ch) |
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34 | // |
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35 | // First implementation: 11. 03. 2009 |
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36 | // |
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37 | // Modifications: 12. 11 .2009 - Function BuildDEDXTable: Using adapted build |
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38 | // methods of stopping power classes according |
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39 | // to interface change in G4VIonDEDXTable. |
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40 | // Function UpdateCacheValue: Using adapted |
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41 | // ScalingFactorEnergy function according to |
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42 | // interface change in G4VIonDEDXScaling- |
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43 | // Algorithm (AL) |
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44 | // |
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45 | // Class description: |
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46 | // Ion dE/dx table handler. |
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47 | // |
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48 | // Comments: |
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49 | // |
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50 | // =========================================================================== |
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51 | |
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52 | |
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53 | #include "G4IonDEDXHandler.hh" |
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54 | #include "G4VIonDEDXTable.hh" |
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55 | #include "G4VIonDEDXScalingAlgorithm.hh" |
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56 | #include "G4ParticleDefinition.hh" |
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57 | #include "G4Material.hh" |
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58 | #include "G4LPhysicsFreeVector.hh" |
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59 | #include <iomanip> |
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60 | |
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61 | //#define PRINT_DEBUG |
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62 | |
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63 | |
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64 | // ######################################################################### |
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65 | |
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66 | G4IonDEDXHandler::G4IonDEDXHandler( |
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67 | G4VIonDEDXTable* ionTable, |
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68 | G4VIonDEDXScalingAlgorithm* ionAlgorithm, |
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69 | const G4String& name, |
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70 | G4int maxCacheSize, |
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71 | G4bool splines) : |
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72 | table(ionTable), |
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73 | algorithm(ionAlgorithm), |
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74 | tableName(name), |
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75 | useSplines(splines), |
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76 | maxCacheEntries(maxCacheSize) { |
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77 | |
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78 | if(table == 0) { |
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79 | G4cerr << "G4IonDEDXHandler::G4IonDEDXHandler() " |
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80 | << " Pointer to G4VIonDEDXTable object is null-pointer." |
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81 | << G4endl; |
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82 | } |
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83 | |
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84 | if(algorithm == 0) { |
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85 | G4cerr << "G4IonDEDXHandler::G4IonDEDXHandler() " |
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86 | << " Pointer to G4VIonDEDXScalingAlgorithm object is null-pointer." |
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87 | << G4endl; |
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88 | } |
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89 | |
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90 | if(maxCacheEntries <= 0) { |
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91 | G4cerr << "G4IonDEDXHandler::G4IonDEDXHandler() " |
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92 | << " Cache size <=0. Resetting to 5." |
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93 | << G4endl; |
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94 | maxCacheEntries = 5; |
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95 | } |
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96 | } |
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97 | |
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98 | // ######################################################################### |
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99 | |
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100 | G4IonDEDXHandler::~G4IonDEDXHandler() { |
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101 | |
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102 | ClearCache(); |
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103 | |
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104 | // All stopping power vectors built according to Bragg's addivitiy rule |
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105 | // are deleted. All other stopping power vectors are expected to be |
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106 | // deleted by their creator class (sub-class of G4VIonDEDXTable). |
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107 | DEDXTableBraggRule::iterator iter = stoppingPowerTableBragg.begin(); |
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108 | DEDXTableBraggRule::iterator iter_end = stoppingPowerTableBragg.end(); |
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109 | |
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110 | for(;iter != iter_end; iter++) delete iter -> second; |
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111 | stoppingPowerTableBragg.clear(); |
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112 | |
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113 | stoppingPowerTable.clear(); |
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114 | |
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115 | if(table != 0) delete table; |
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116 | if(algorithm != 0) delete algorithm; |
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117 | } |
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118 | |
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119 | // ######################################################################### |
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120 | |
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121 | G4bool G4IonDEDXHandler::IsApplicable( |
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122 | const G4ParticleDefinition* particle, // Projectile (ion) |
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123 | const G4Material* material) { // Target material |
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124 | |
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125 | G4bool isApplicable = true; |
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126 | |
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127 | if(table == 0 || algorithm == 0) { |
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128 | isApplicable = false; |
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129 | } |
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130 | else { |
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131 | |
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132 | G4int atomicNumberIon = particle -> GetAtomicNumber(); |
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133 | G4int atomicNumberBase = |
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134 | algorithm -> AtomicNumberBaseIon(atomicNumberIon, material); |
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135 | |
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136 | G4IonKey key = std::make_pair(atomicNumberBase, material); |
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137 | |
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138 | DEDXTable::iterator iter = stoppingPowerTable.find(key); |
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139 | if(iter == stoppingPowerTable.end()) isApplicable = false; |
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140 | } |
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141 | |
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142 | return isApplicable; |
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143 | } |
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144 | |
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145 | // ######################################################################### |
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146 | |
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147 | G4double G4IonDEDXHandler::GetDEDX( |
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148 | const G4ParticleDefinition* particle, // Projectile (ion) |
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149 | const G4Material* material, // Target material |
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150 | G4double kineticEnergy) { // Kinetic energy of projectile |
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151 | |
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152 | G4double dedx = 0.0; |
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153 | |
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154 | G4CacheValue value = GetCacheValue(particle, material); |
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155 | |
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156 | if(kineticEnergy <= 0.0) dedx = 0.0; |
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157 | else if(value.dedxVector != 0) { |
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158 | |
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159 | G4bool b; |
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160 | G4double factor = value.density; |
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161 | |
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162 | factor *= algorithm -> ScalingFactorDEDX(particle, |
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163 | material, |
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164 | kineticEnergy); |
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165 | G4double scaledKineticEnergy = kineticEnergy * value.energyScaling; |
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166 | |
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167 | if(scaledKineticEnergy < value.lowerEnergyEdge) { |
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168 | |
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169 | factor *= std::sqrt(scaledKineticEnergy / value.lowerEnergyEdge); |
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170 | scaledKineticEnergy = value.lowerEnergyEdge; |
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171 | } |
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172 | |
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173 | dedx = factor * value.dedxVector -> GetValue(scaledKineticEnergy, b); |
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174 | |
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175 | if(dedx < 0.0) dedx = 0.0; |
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176 | } |
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177 | else dedx = 0.0; |
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178 | |
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179 | #ifdef PRINT_DEBUG |
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180 | G4cout << "G4IonDEDXHandler::GetDEDX() E = " |
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181 | << kineticEnergy / MeV << " MeV * " |
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182 | << value.energyScaling << " = " |
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183 | << kineticEnergy * value.energyScaling / MeV |
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184 | << " MeV, dE/dx = " << dedx / MeV * cm << " MeV/cm" |
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185 | << ", material = " << material -> GetName() |
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186 | << G4endl; |
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187 | #endif |
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188 | |
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189 | return dedx; |
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190 | } |
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191 | |
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192 | // ######################################################################### |
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193 | |
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194 | G4bool G4IonDEDXHandler::BuildDEDXTable( |
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195 | const G4ParticleDefinition* particle, // Projectile (ion) |
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196 | const G4Material* material) { // Target material |
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197 | |
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198 | G4int atomicNumberIon = particle -> GetAtomicNumber(); |
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199 | |
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200 | G4bool isApplicable = BuildDEDXTable(atomicNumberIon, material); |
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201 | |
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202 | return isApplicable; |
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203 | } |
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204 | |
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205 | |
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206 | // ######################################################################### |
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207 | |
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208 | G4bool G4IonDEDXHandler::BuildDEDXTable( |
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209 | G4int atomicNumberIon, // Projectile (ion) |
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210 | const G4Material* material) { // Target material |
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211 | |
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212 | G4bool isApplicable = true; |
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213 | |
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214 | if(table == 0 || algorithm == 0) { |
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215 | isApplicable = false; |
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216 | return isApplicable; |
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217 | } |
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218 | |
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219 | G4int atomicNumberBase = |
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220 | algorithm -> AtomicNumberBaseIon(atomicNumberIon, material); |
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221 | |
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222 | // Checking if vector is already built, and returns if this is indeed |
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223 | // the case |
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224 | G4IonKey key = std::make_pair(atomicNumberBase, material); |
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225 | |
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226 | DEDXTable::iterator iter = stoppingPowerTable.find(key); |
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227 | if(iter != stoppingPowerTable.end()) return isApplicable; |
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228 | |
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229 | // Checking if table contains stopping power vector for given material name |
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230 | // or chemical formula |
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231 | const G4String& chemFormula = material -> GetChemicalFormula(); |
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232 | const G4String& materialName = material -> GetName(); |
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233 | |
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234 | isApplicable = table -> BuildPhysicsVector(atomicNumberBase, chemFormula); |
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235 | |
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236 | if(isApplicable) { |
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237 | stoppingPowerTable[key] = |
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238 | table -> GetPhysicsVector(atomicNumberBase, chemFormula); |
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239 | return isApplicable; |
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240 | } |
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241 | |
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242 | isApplicable = table -> BuildPhysicsVector(atomicNumberBase, materialName); |
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243 | if(isApplicable) { |
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244 | stoppingPowerTable[key] = |
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245 | table -> GetPhysicsVector(atomicNumberBase, materialName); |
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246 | return isApplicable; |
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247 | } |
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248 | |
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249 | // Building the stopping power vector based on Bragg's additivity rule |
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250 | const G4ElementVector* elementVector = material -> GetElementVector() ; |
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251 | |
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252 | std::vector<G4PhysicsVector*> dEdxTable; |
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253 | |
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254 | size_t nmbElements = material -> GetNumberOfElements(); |
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255 | |
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256 | for(size_t i = 0; i < nmbElements; i++) { |
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257 | |
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258 | G4int atomicNumberMat = G4int((*elementVector)[i] -> GetZ()); |
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259 | |
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260 | isApplicable = table -> BuildPhysicsVector(atomicNumberBase, atomicNumberMat); |
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261 | |
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262 | if(isApplicable) { |
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263 | |
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264 | G4PhysicsVector* dEdx = |
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265 | table -> GetPhysicsVector(atomicNumberBase, atomicNumberMat); |
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266 | dEdxTable.push_back(dEdx); |
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267 | } |
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268 | else { |
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269 | |
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270 | dEdxTable.clear(); |
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271 | break; |
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272 | } |
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273 | } |
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274 | |
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275 | if(isApplicable) { |
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276 | |
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277 | if(dEdxTable.size() > 0) { |
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278 | |
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279 | size_t nmbdEdxBins = dEdxTable[0] -> GetVectorLength(); |
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280 | G4double lowerEdge = dEdxTable[0] -> GetLowEdgeEnergy(0); |
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281 | G4double upperEdge = dEdxTable[0] -> GetLowEdgeEnergy(nmbdEdxBins-1); |
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282 | |
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283 | G4LPhysicsFreeVector* dEdxBragg = |
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284 | new G4LPhysicsFreeVector(nmbdEdxBins, |
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285 | lowerEdge, |
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286 | upperEdge); |
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287 | dEdxBragg -> SetSpline(useSplines); |
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288 | |
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289 | const G4double* massFractionVector = material -> GetFractionVector(); |
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290 | |
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291 | G4bool b; |
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292 | for(size_t j = 0; j < nmbdEdxBins; j++) { |
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293 | |
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294 | G4double edge = dEdxTable[0] -> GetLowEdgeEnergy(j); |
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295 | |
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296 | G4double value = 0.0; |
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297 | for(size_t i = 0; i < nmbElements; i++) { |
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298 | |
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299 | value += (dEdxTable[i] -> GetValue(edge ,b)) * |
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300 | massFractionVector[i]; |
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301 | } |
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302 | |
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303 | dEdxBragg -> PutValues(j, edge, value); |
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304 | } |
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305 | |
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306 | #ifdef PRINT_DEBUG |
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307 | G4cout << "G4IonDEDXHandler::BuildPhysicsVector() for ion with Z=" |
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308 | << atomicNumberBase << " in " |
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309 | << material -> GetName() |
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310 | << G4endl; |
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311 | |
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312 | G4cout << *dEdxBragg; |
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313 | #endif |
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314 | |
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315 | stoppingPowerTable[key] = dEdxBragg; |
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316 | stoppingPowerTableBragg[key] = dEdxBragg; |
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317 | } |
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318 | } |
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319 | |
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320 | ClearCache(); |
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321 | |
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322 | return isApplicable; |
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323 | } |
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324 | |
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325 | // ######################################################################### |
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326 | |
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327 | G4CacheValue G4IonDEDXHandler::UpdateCacheValue( |
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328 | const G4ParticleDefinition* particle, // Projectile (ion) |
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329 | const G4Material* material) { // Target material |
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330 | |
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331 | G4CacheValue value; |
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332 | |
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333 | G4int atomicNumberIon = particle -> GetAtomicNumber(); |
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334 | G4int atomicNumberBase = |
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335 | algorithm -> AtomicNumberBaseIon(atomicNumberIon, material); |
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336 | |
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337 | G4IonKey key = std::make_pair(atomicNumberBase, material); |
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338 | |
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339 | DEDXTable::iterator iter = stoppingPowerTable.find(key); |
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340 | |
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341 | if(iter != stoppingPowerTable.end()) { |
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342 | value.dedxVector = iter -> second; |
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343 | |
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344 | G4double nmbNucleons = G4double(particle -> GetAtomicMass()); |
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345 | value.energyScaling = |
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346 | algorithm -> ScalingFactorEnergy(particle, material) / nmbNucleons; |
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347 | |
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348 | size_t nmbdEdxBins = value.dedxVector -> GetVectorLength(); |
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349 | value.lowerEnergyEdge = value.dedxVector -> GetLowEdgeEnergy(0); |
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350 | |
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351 | value.upperEnergyEdge = |
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352 | value.dedxVector -> GetLowEdgeEnergy(nmbdEdxBins-1); |
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353 | value.density = material -> GetDensity(); |
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354 | } |
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355 | else { |
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356 | value.dedxVector = 0; |
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357 | value.energyScaling = 0.0; |
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358 | value.lowerEnergyEdge = 0.0; |
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359 | value.upperEnergyEdge = 0.0; |
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360 | value.density = 0.0; |
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361 | } |
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362 | |
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363 | #ifdef PRINT_DEBUG |
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364 | G4cout << "G4IonDEDXHandler::UpdateCacheValue() for " |
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365 | << particle -> GetParticleName() << " in " |
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366 | << material -> GetName() |
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367 | << G4endl; |
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368 | #endif |
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369 | |
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370 | return value; |
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371 | } |
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372 | |
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373 | // ######################################################################### |
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374 | |
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375 | G4CacheValue G4IonDEDXHandler::GetCacheValue( |
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376 | const G4ParticleDefinition* particle, // Projectile (ion) |
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377 | const G4Material* material) { // Target material |
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378 | |
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379 | G4CacheKey key = std::make_pair(particle, material); |
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380 | |
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381 | G4CacheEntry entry; |
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382 | CacheEntryList::iterator* pointerIter = |
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383 | (CacheEntryList::iterator*) cacheKeyPointers[key]; |
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384 | |
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385 | if(!pointerIter) { |
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386 | entry.value = UpdateCacheValue(particle, material); |
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387 | |
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388 | entry.key = key; |
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389 | cacheEntries.push_front(entry); |
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390 | |
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391 | CacheEntryList::iterator* pointerIter = |
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392 | new CacheEntryList::iterator(); |
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393 | *pointerIter = cacheEntries.begin(); |
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394 | cacheKeyPointers[key] = pointerIter; |
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395 | |
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396 | if(G4int(cacheEntries.size()) > maxCacheEntries) { |
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397 | |
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398 | G4CacheEntry lastEntry = cacheEntries.back(); |
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399 | |
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400 | void* pointerIter = cacheKeyPointers[lastEntry.key]; |
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401 | CacheEntryList::iterator* listPointerIter = |
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402 | (CacheEntryList::iterator*) pointerIter; |
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403 | |
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404 | cacheEntries.erase(*listPointerIter); |
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405 | |
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406 | delete listPointerIter; |
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407 | cacheKeyPointers.erase(lastEntry.key); |
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408 | } |
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409 | } |
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410 | else { |
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411 | entry = *(*pointerIter); |
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412 | // Cache entries are currently not re-ordered. |
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413 | // Uncomment for activating re-ordering: |
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414 | // cacheEntries.erase(*pointerIter); |
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415 | // cacheEntries.push_front(entry); |
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416 | // *pointerIter = cacheEntries.begin(); |
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417 | } |
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418 | return entry.value; |
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419 | } |
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420 | |
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421 | // ######################################################################### |
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422 | |
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423 | void G4IonDEDXHandler::ClearCache() { |
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424 | |
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425 | CacheIterPointerMap::iterator iter = cacheKeyPointers.begin(); |
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426 | CacheIterPointerMap::iterator iter_end = cacheKeyPointers.end(); |
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427 | |
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428 | for(;iter != iter_end; iter++) { |
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429 | void* pointerIter = iter -> second; |
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430 | CacheEntryList::iterator* listPointerIter = |
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431 | (CacheEntryList::iterator*) pointerIter; |
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432 | |
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433 | delete listPointerIter; |
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434 | } |
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435 | |
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436 | cacheEntries.clear(); |
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437 | cacheKeyPointers.clear(); |
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438 | } |
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439 | |
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440 | // ######################################################################### |
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441 | |
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442 | void G4IonDEDXHandler::PrintDEDXTable( |
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443 | const G4ParticleDefinition* particle, // Projectile (ion) |
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444 | const G4Material* material, // Target material |
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445 | G4double lowerBoundary, // Minimum energy per nucleon |
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446 | G4double upperBoundary, // Maximum energy per nucleon |
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447 | G4int nmbBins, // Number of bins |
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448 | G4bool logScaleEnergy) { // Logarithmic scaling of energy |
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449 | |
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450 | G4double atomicMassNumber = particle -> GetAtomicMass(); |
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451 | G4double materialDensity = material -> GetDensity(); |
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452 | |
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453 | G4cout << "# dE/dx table for " << particle -> GetParticleName() |
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454 | << " in material " << material -> GetName() |
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455 | << " of density " << materialDensity / g * cm3 |
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456 | << " g/cm3" |
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457 | << G4endl |
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458 | << "# Projectile mass number A1 = " << atomicMassNumber |
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459 | << G4endl |
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460 | << "# Energy range (per nucleon) of tabulation: " |
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461 | << GetLowerEnergyEdge(particle, material) / atomicMassNumber / MeV |
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462 | << " - " |
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463 | << GetUpperEnergyEdge(particle, material) / atomicMassNumber / MeV |
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464 | << " MeV" |
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465 | << G4endl |
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466 | << "# ------------------------------------------------------" |
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467 | << G4endl; |
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468 | G4cout << "#" |
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469 | << std::setw(13) << std::right << "E" |
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470 | << std::setw(14) << "E/A1" |
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471 | << std::setw(14) << "dE/dx" |
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472 | << std::setw(14) << "1/rho*dE/dx" |
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473 | << G4endl; |
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474 | G4cout << "#" |
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475 | << std::setw(13) << std::right << "(MeV)" |
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476 | << std::setw(14) << "(MeV)" |
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477 | << std::setw(14) << "(MeV/cm)" |
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478 | << std::setw(14) << "(MeV*cm2/mg)" |
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479 | << G4endl |
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480 | << "# ------------------------------------------------------" |
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481 | << G4endl; |
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482 | |
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483 | G4CacheValue value = GetCacheValue(particle, material); |
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484 | |
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485 | G4double energyLowerBoundary = lowerBoundary * atomicMassNumber; |
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486 | G4double energyUpperBoundary = upperBoundary * atomicMassNumber; |
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487 | |
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488 | if(logScaleEnergy) { |
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489 | |
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490 | energyLowerBoundary = std::log(energyLowerBoundary); |
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491 | energyUpperBoundary = std::log(energyUpperBoundary); |
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492 | } |
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493 | |
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494 | G4double deltaEnergy = (energyUpperBoundary - energyLowerBoundary) / |
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495 | G4double(nmbBins); |
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496 | |
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497 | G4cout.precision(6); |
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498 | for(int i = 0; i < nmbBins + 1; i++) { |
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499 | |
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500 | G4double energy = energyLowerBoundary + i * deltaEnergy; |
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501 | if(logScaleEnergy) energy = std::exp(energy); |
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502 | |
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503 | G4double loss = GetDEDX(particle, material, energy); |
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504 | |
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505 | G4cout << std::setw(14) << std::right << energy / MeV |
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506 | << std::setw(14) << energy / atomicMassNumber / MeV |
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507 | << std::setw(14) << loss / MeV * cm |
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508 | << std::setw(14) << loss / materialDensity / (MeV*cm2/(0.001*g)) |
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509 | << G4endl; |
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510 | } |
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511 | } |
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512 | |
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513 | // ######################################################################### |
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514 | |
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515 | G4double G4IonDEDXHandler::GetLowerEnergyEdge( |
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516 | const G4ParticleDefinition* particle, // Projectile (ion) |
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517 | const G4Material* material) { // Target material |
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518 | |
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519 | G4double edge = 0.0; |
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520 | |
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521 | G4CacheValue value = GetCacheValue(particle, material); |
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522 | |
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523 | if(value.energyScaling > 0) |
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524 | edge = value.lowerEnergyEdge / value.energyScaling; |
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525 | |
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526 | return edge; |
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527 | } |
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528 | |
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529 | // ######################################################################### |
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530 | |
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531 | G4double G4IonDEDXHandler::GetUpperEnergyEdge( |
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532 | const G4ParticleDefinition* particle, // Projectile (ion) |
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533 | const G4Material* material) { // Target material |
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534 | |
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535 | G4double edge = 0.0; |
---|
536 | |
---|
537 | G4CacheValue value = GetCacheValue(particle, material); |
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538 | |
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539 | if(value.energyScaling > 0) |
---|
540 | edge = value.upperEnergyEdge / value.energyScaling; |
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541 | |
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542 | return edge; |
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543 | } |
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544 | |
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545 | // ######################################################################### |
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546 | |
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547 | G4String G4IonDEDXHandler::GetName() { |
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548 | |
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549 | return tableName; |
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550 | } |
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551 | |
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552 | // ######################################################################### |
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