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: G4PAIxSection.hh,v 1.15 2008/05/30 16:04:40 grichine Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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29 | // |
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30 | // |
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31 | // G4PAIxSection.hh -- header file |
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32 | // |
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33 | // GEANT 4 class header file --- Copyright CERN 1995 |
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34 | // CERB Geneva Switzerland |
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35 | // |
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36 | // for information related to this code, please, contact |
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37 | // CERN, CN Division, ASD Group |
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38 | // |
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39 | // Preparation of ionizing collision cross section according to Photo Absorption |
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40 | // Ionization (PAI) model for simulation of ionization energy losses in very thin |
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41 | // absorbers. Author: Vladimir.Grichine@cern.ch |
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42 | // |
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43 | // History: |
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44 | // |
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45 | // 19.10.03, V. Grichine: Integral dEdx was added for G4PAIModel class |
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46 | // |
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47 | // 13.05.03, V. Grichine: Numerical instability was fixed in SumOverInterval/Border |
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48 | // functions |
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49 | // 10.02.02, V. Grichine: New functions and arrays/gets for Cerenkov and |
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50 | // plasmon collisions dN/dx |
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51 | // 27.10.99, V. Grichine: Bug fixed in constructors, 3rd constructor and |
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52 | // GetStepEnergyLoss(step) were added, fDelta = 0.005 |
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53 | // 30.11.97, V. Grichine: 2nd version |
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54 | // 11.06.97, V. Grichine: 1st version |
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55 | |
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56 | #ifndef G4PAIXSECTION_HH |
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57 | #define G4PAIXSECTION_HH |
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58 | |
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59 | #include "G4ios.hh" |
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60 | #include "globals.hh" |
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61 | #include "Randomize.hh" |
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62 | |
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63 | #include"G4SandiaTable.hh" |
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64 | |
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65 | class G4MaterialCutsCouple; |
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66 | class G4Sandiatable; |
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67 | |
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68 | |
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69 | class G4PAIxSection |
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70 | { |
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71 | public: |
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72 | // Constructors |
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73 | G4PAIxSection( G4MaterialCutsCouple* matCC); |
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74 | |
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75 | G4PAIxSection( G4int materialIndex, |
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76 | G4double maxEnergyTransfer ); |
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77 | |
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78 | G4PAIxSection( G4int materialIndex, // for proton loss table |
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79 | G4double maxEnergyTransfer, |
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80 | G4double betaGammaSq , |
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81 | G4double** photoAbsCof, G4int intNumber ); |
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82 | |
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83 | G4PAIxSection( G4int materialIndex, // test constructor |
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84 | G4double maxEnergyTransfer, |
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85 | G4double betaGammaSq ); |
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86 | |
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87 | // G4PAIxSection(const G4PAIxSection& right); |
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88 | |
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89 | // Destructor |
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90 | |
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91 | ~G4PAIxSection(); |
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92 | |
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93 | // Operators |
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94 | // G4PAIxSection& operator=(const G4PAIxSection& right); |
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95 | // G4int operator==(const G4PAIxSection& right)const; |
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96 | // G4int operator!=(const G4PAIxSection& right)const; |
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97 | |
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98 | // Methods |
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99 | |
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100 | // General control functions |
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101 | |
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102 | void InitPAI(); |
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103 | |
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104 | void NormShift( G4double betaGammaSq ); |
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105 | |
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106 | void SplainPAI( G4double betaGammaSq ); |
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107 | |
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108 | // Physical methods |
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109 | |
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110 | |
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111 | G4double RutherfordIntegral( G4int intervalNumber, |
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112 | G4double limitLow, |
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113 | G4double limitHigh ); |
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114 | |
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115 | G4double ImPartDielectricConst( G4int intervalNumber, |
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116 | G4double energy ); |
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117 | |
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118 | G4double GetPhotonRange( G4double energy ); |
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119 | G4double GetElectronRange( G4double energy ); |
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120 | |
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121 | G4double RePartDielectricConst(G4double energy); |
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122 | |
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123 | G4double DifPAIxSection( G4int intervalNumber, |
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124 | G4double betaGammaSq ); |
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125 | |
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126 | G4double PAIdNdxCerenkov( G4int intervalNumber, |
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127 | G4double betaGammaSq ); |
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128 | G4double PAIdNdxMM( G4int intervalNumber, |
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129 | G4double betaGammaSq ); |
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130 | |
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131 | G4double PAIdNdxPlasmon( G4int intervalNumber, |
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132 | G4double betaGammaSq ); |
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133 | |
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134 | G4double PAIdNdxResonance( G4int intervalNumber, |
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135 | G4double betaGammaSq ); |
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136 | |
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137 | void IntegralPAIxSection(); |
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138 | void IntegralCerenkov(); |
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139 | void IntegralMM(); |
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140 | void IntegralPlasmon(); |
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141 | void IntegralResonance(); |
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142 | |
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143 | G4double SumOverInterval(G4int intervalNumber); |
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144 | G4double SumOverIntervaldEdx(G4int intervalNumber); |
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145 | G4double SumOverInterCerenkov(G4int intervalNumber); |
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146 | G4double SumOverInterMM(G4int intervalNumber); |
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147 | G4double SumOverInterPlasmon(G4int intervalNumber); |
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148 | G4double SumOverInterResonance(G4int intervalNumber); |
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149 | |
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150 | G4double SumOverBorder( G4int intervalNumber, |
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151 | G4double energy ); |
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152 | G4double SumOverBorderdEdx( G4int intervalNumber, |
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153 | G4double energy ); |
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154 | G4double SumOverBordCerenkov( G4int intervalNumber, |
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155 | G4double energy ); |
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156 | G4double SumOverBordMM( G4int intervalNumber, |
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157 | G4double energy ); |
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158 | G4double SumOverBordPlasmon( G4int intervalNumber, |
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159 | G4double energy ); |
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160 | G4double SumOverBordResonance( G4int intervalNumber, |
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161 | G4double energy ); |
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162 | |
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163 | G4double GetStepEnergyLoss( G4double step ); |
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164 | G4double GetStepCerenkovLoss( G4double step ); |
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165 | G4double GetStepMMLoss( G4double step ); |
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166 | G4double GetStepPlasmonLoss( G4double step ); |
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167 | G4double GetStepResonanceLoss( G4double step ); |
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168 | |
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169 | G4double GetEnergyTransfer(); |
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170 | G4double GetCerenkovEnergyTransfer(); |
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171 | G4double GetMMEnergyTransfer(); |
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172 | G4double GetPlasmonEnergyTransfer(); |
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173 | G4double GetResonanceEnergyTransfer(); |
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174 | G4double GetRutherfordEnergyTransfer(); |
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175 | |
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176 | // Inline access functions |
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177 | |
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178 | G4int GetNumberOfGammas() const { return fNumberOfGammas; } |
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179 | |
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180 | G4int GetSplineSize() const { return fSplineNumber; } |
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181 | |
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182 | G4int GetIntervalNumber() const { return fIntervalNumber; } |
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183 | |
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184 | G4double GetEnergyInterval(G4int i){ return fEnergyInterval[i]; } |
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185 | |
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186 | G4double GetDifPAIxSection(G4int i){ return fDifPAIxSection[i]; } |
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187 | G4double GetPAIdNdxCerenkov(G4int i){ return fdNdxCerenkov[i]; } |
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188 | G4double GetPAIdNdxMM(G4int i){ return fdNdxMM[i]; } |
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189 | G4double GetPAIdNdxPlasmon(G4int i){ return fdNdxPlasmon[i]; } |
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190 | G4double GetPAIdNdxResonance(G4int i){ return fdNdxResonance[i]; } |
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191 | |
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192 | G4double GetMeanEnergyLoss() const {return fIntegralPAIxSection[0]; } |
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193 | G4double GetMeanCerenkovLoss() const {return fIntegralCerenkov[0]; } |
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194 | G4double GetMeanMMLoss() const {return fIntegralMM[0]; } |
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195 | G4double GetMeanPlasmonLoss() const {return fIntegralPlasmon[0]; } |
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196 | G4double GetMeanResonanceLoss() const {return fIntegralResonance[0]; } |
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197 | |
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198 | G4double GetNormalizationCof() const { return fNormalizationCof; } |
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199 | |
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200 | inline G4double GetPAItable(G4int i,G4int j) const; |
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201 | |
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202 | inline G4double GetLorentzFactor(G4int i) const; |
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203 | |
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204 | inline G4double GetSplineEnergy(G4int i) const; |
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205 | |
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206 | inline G4double GetIntegralPAIxSection(G4int i) const; |
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207 | inline G4double GetIntegralPAIdEdx(G4int i) const; |
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208 | inline G4double GetIntegralCerenkov(G4int i) const; |
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209 | inline G4double GetIntegralMM(G4int i) const; |
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210 | inline G4double GetIntegralPlasmon(G4int i) const; |
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211 | inline G4double GetIntegralResonance(G4int i) const; |
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212 | |
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213 | protected : |
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214 | |
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215 | private : |
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216 | |
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217 | // Local class constants |
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218 | |
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219 | static const G4double fDelta; // energy shift from interval border = 0.001 |
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220 | static const G4double fError; // error in lin-log approximation = 0.005 |
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221 | |
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222 | static G4int fNumberOfGammas; // = 111; |
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223 | static const G4double fLorentzFactor[112]; // static gamma array |
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224 | |
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225 | static |
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226 | const G4int fRefGammaNumber ; // The number of gamma for creation of spline (15) |
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227 | |
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228 | G4int fIntervalNumber ; // The number of energy intervals |
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229 | G4double fNormalizationCof; // Normalization cof for PhotoAbsorptionXsection |
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230 | |
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231 | // G4double fBetaGammaSq; // (beta*gamma)^2 |
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232 | |
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233 | G4int fMaterialIndex; // current material index |
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234 | G4double fDensity; // Current density |
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235 | G4double fElectronDensity; // Current electron (number) density |
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236 | G4int fSplineNumber; // Current size of spline |
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237 | |
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238 | // Arrays of Sandia coefficients |
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239 | |
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240 | G4OrderedTable* fMatSandiaMatrix; |
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241 | G4SandiaTable* fSandia; |
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242 | |
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243 | G4double* fEnergyInterval; |
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244 | G4double* fA1; |
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245 | G4double* fA2; |
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246 | G4double* fA3; |
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247 | G4double* fA4; |
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248 | |
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249 | static |
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250 | const G4int fMaxSplineSize ; // Max size of output splain arrays = 500 |
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251 | |
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252 | /* ****************** |
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253 | G4double* fSplineEnergy; // energy points of splain |
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254 | G4double* fRePartDielectricConst; // Real part of dielectric const |
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255 | G4double* fImPartDielectricConst; // Imaginary part of dielectric const |
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256 | G4double* fIntegralTerm; // Integral term in PAI cross section |
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257 | G4double* fDifPAIxSection; // Differential PAI cross section |
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258 | G4double* fIntegralPAIxSection; // Integral PAI cross section ? |
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259 | */ /////////////// |
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260 | |
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261 | |
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262 | G4double fSplineEnergy[500]; // energy points of splain |
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263 | G4double fRePartDielectricConst[500]; // Real part of dielectric const |
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264 | G4double fImPartDielectricConst[500]; // Imaginary part of dielectric const |
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265 | G4double fIntegralTerm[500]; // Integral term in PAI cross section |
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266 | G4double fDifPAIxSection[500]; // Differential PAI cross section |
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267 | G4double fdNdxCerenkov[500]; // dNdx of Cerenkov collisions |
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268 | G4double fdNdxMM[500]; // dNdx of MM-Cerenkov collisions |
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269 | G4double fdNdxPlasmon[500]; // dNdx of Plasmon collisions |
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270 | G4double fdNdxResonance[500]; // dNdx of resonance collisions |
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271 | |
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272 | G4double fIntegralPAIxSection[500]; // Integral PAI cross section ? |
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273 | G4double fIntegralPAIdEdx[500]; // Integral PAI dEdx ? |
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274 | G4double fIntegralCerenkov[500]; // Integral Cerenkov N>omega ? |
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275 | G4double fIntegralMM[500]; // Integral MM-Cerenkov N>omega ? |
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276 | G4double fIntegralPlasmon[500]; // Integral Plasmon N>omega ? |
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277 | G4double fIntegralResonance[500]; // Integral resonance N>omega ? |
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278 | |
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279 | G4double fPAItable[500][112]; // Output array |
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280 | |
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281 | }; |
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282 | |
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283 | //////////////// Inline methods ////////////////////////////////// |
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284 | // |
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285 | |
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286 | |
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287 | inline G4double G4PAIxSection::GetPAItable(G4int i, G4int j) const |
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288 | { |
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289 | return fPAItable[i][j]; |
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290 | } |
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291 | |
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292 | inline G4double G4PAIxSection::GetLorentzFactor(G4int j) const |
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293 | { |
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294 | return fLorentzFactor[j]; |
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295 | } |
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296 | |
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297 | inline G4double G4PAIxSection::GetSplineEnergy(G4int i) const |
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298 | { |
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299 | if(i < 1 || i > fSplineNumber) |
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300 | { |
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301 | G4Exception("Invalid argument in G4PAIxSection::GetSplineEnergy"); |
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302 | } |
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303 | return fSplineEnergy[i]; |
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304 | } |
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305 | |
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306 | inline G4double G4PAIxSection::GetIntegralPAIxSection(G4int i) const |
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307 | { |
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308 | if(i < 1 || i > fSplineNumber) |
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309 | { |
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310 | G4Exception("Invalid argument in G4PAIxSection::GetIntegralPAIxSection"); |
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311 | } |
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312 | return fIntegralPAIxSection[i]; |
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313 | } |
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314 | |
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315 | inline G4double G4PAIxSection::GetIntegralPAIdEdx(G4int i) const |
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316 | { |
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317 | if(i < 1 || i > fSplineNumber) |
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318 | { |
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319 | G4Exception("Invalid argument in G4PAIxSection::GetIntegralPAIxSection"); |
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320 | } |
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321 | return fIntegralPAIdEdx[i]; |
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322 | } |
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323 | |
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324 | inline G4double G4PAIxSection::GetIntegralCerenkov(G4int i) const |
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325 | { |
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326 | if(i < 1 || i > fSplineNumber) |
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327 | { |
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328 | G4Exception("Invalid argument in G4PAIxSection::GetIntegralCerenkov"); |
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329 | } |
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330 | return fIntegralCerenkov[i]; |
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331 | } |
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332 | |
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333 | inline G4double G4PAIxSection::GetIntegralMM(G4int i) const |
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334 | { |
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335 | if(i < 1 || i > fSplineNumber) |
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336 | { |
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337 | G4Exception("Invalid argument in G4PAIxSection::GetIntegralMM"); |
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338 | } |
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339 | return fIntegralMM[i]; |
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340 | } |
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341 | |
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342 | inline G4double G4PAIxSection::GetIntegralPlasmon(G4int i) const |
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343 | { |
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344 | if(i < 1 || i > fSplineNumber) |
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345 | { |
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346 | G4Exception("Invalid argument in G4PAIxSection::GetIntegralPlasmon"); |
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347 | } |
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348 | return fIntegralPlasmon[i]; |
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349 | } |
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350 | |
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351 | inline G4double G4PAIxSection::GetIntegralResonance(G4int i) const |
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352 | { |
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353 | if(i < 1 || i > fSplineNumber) |
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354 | { |
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355 | G4Exception("Invalid argument in G4PAIxSection::GetIntegralResonance"); |
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356 | } |
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357 | return fIntegralResonance[i]; |
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358 | } |
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359 | |
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360 | #endif |
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361 | |
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362 | // ----------------- end of G4PAIxSection header file ------------------- |
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