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 | // GEANT4 Class file |
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29 | // |
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30 | // |
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31 | // File name: G4hShellCrossSectionDoubleExp.cc |
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32 | // |
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33 | // Author: Simona Saliceti (simona.saliceti@ge.infn.it) |
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34 | // |
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35 | // History: |
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36 | // ----------- |
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37 | // From 23 Oct 2001 A. Mantero G4hShellCrossSection |
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38 | // 30/03/2004 Simona Saliceti 1st implementation |
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39 | // ------------------------------------------------------------------- |
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40 | // Class Description: |
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41 | // Empiric Model for shell cross sections in proton ionisation |
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42 | // ------------------------------------------------------------------- |
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43 | // $Id: G4hShellCrossSectionDoubleExp.cc,v 1.10 2009/06/10 13:32:36 mantero Exp $ |
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44 | // GEANT4 tag $Name: geant4-09-03 $ |
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45 | |
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46 | #include "globals.hh" |
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47 | #include <vector> |
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48 | #include "G4hShellCrossSectionDoubleExp.hh" |
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49 | #include "G4AtomicTransitionManager.hh" |
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50 | #include "G4Electron.hh" |
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51 | #include "G4hShellCrossSectionDoubleExpData.hh" |
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52 | #include "G4Proton.hh" |
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53 | #include "G4ParticleDefinition.hh" |
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54 | |
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55 | G4hShellCrossSectionDoubleExp::G4hShellCrossSectionDoubleExp() |
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56 | { |
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57 | kShellData = new G4hShellCrossSectionDoubleExpData(); |
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58 | } |
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59 | |
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60 | G4hShellCrossSectionDoubleExp::~G4hShellCrossSectionDoubleExp() |
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61 | { } |
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62 | |
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63 | std::vector<G4double> G4hShellCrossSectionDoubleExp::GetCrossSection(G4int Z, |
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64 | G4double incidentEnergy, |
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65 | G4double mass, |
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66 | G4double deltaEnergy, |
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67 | G4bool testFlag) const |
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68 | { |
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69 | mass = 0.0; |
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70 | deltaEnergy = 0.0; |
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71 | |
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72 | std::vector<G4double> aCrossSection; |
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73 | |
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74 | // Fill the vector of cross sections with the value just calculated |
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75 | aCrossSection.push_back(GetCrossSectionDoubleExp(Z,incidentEnergy)); |
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76 | |
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77 | if (testFlag) |
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78 | { |
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79 | G4cout <<"Element: " <<Z<<" Particle Energy: "<<incidentEnergy/MeV<<" MeV" <<G4endl; |
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80 | G4cout <<"Cross Section: "<<aCrossSection[0]/barn<<" barns"<< G4endl; |
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81 | } |
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82 | return aCrossSection; |
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83 | } |
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84 | |
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85 | //This function calculated the cross section with the Empiric model |
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86 | G4double G4hShellCrossSectionDoubleExp::GetCrossSectionDoubleExp(G4int Z, |
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87 | G4double incidentEnergy) const |
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88 | { |
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89 | // Vector that stores the calculated cross-sections for each shell: |
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90 | G4double crossSectionsInBarn = 0.0; |
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91 | G4double crossSections = 0.0; |
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92 | |
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93 | std::vector<std::vector<G4double>*> parVec = kShellData->GetParam(Z); |
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94 | std::vector<G4double>* energyVec = parVec[0]; |
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95 | std::vector<G4double>* par1Vec = parVec[1]; |
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96 | std::vector<G4double>* par2Vec = parVec[2]; |
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97 | |
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98 | std::vector<G4double>::iterator i = (*par1Vec).begin(); |
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99 | |
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100 | G4double a1 = *i; |
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101 | G4double b1 = *(i+1); |
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102 | G4double c1 = *(i+2); |
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103 | |
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104 | std::vector<G4double>::iterator j = (*par2Vec).begin(); |
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105 | |
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106 | G4double a2 = *j; |
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107 | G4double b2 = *(j+1); |
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108 | G4double c2 = *(j+2); |
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109 | G4double d2 = *(j+3); |
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110 | G4double e2 = *(j+4); |
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111 | |
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112 | G4double incidentEnergyInMeV = incidentEnergy/MeV; |
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113 | |
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114 | // energy is the energy to split the file in low and high energy |
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115 | std::vector<G4double>::iterator l = (*energyVec).begin(); |
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116 | G4double energy = *l; |
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117 | energy = energy/MeV; |
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118 | |
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119 | if(incidentEnergyInMeV <= energy) |
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120 | { |
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121 | if(Z<26) |
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122 | { |
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123 | crossSectionsInBarn = (std::pow(incidentEnergyInMeV,(a1)))*std::exp((b1)-((c1)*(incidentEnergyInMeV))); |
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124 | } |
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125 | else if(Z>=26) |
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126 | { |
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127 | crossSectionsInBarn = a1*(std::pow(b1,(1./incidentEnergyInMeV)))*(std::pow(incidentEnergyInMeV,c1)); |
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128 | } |
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129 | } |
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130 | else if(incidentEnergyInMeV > energy) |
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131 | { |
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132 | if(Z<26 || (Z>=36 && Z<=65)) |
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133 | { |
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134 | crossSectionsInBarn = (a2)*(std::pow((b2),(1./incidentEnergyInMeV)))*(std::pow(incidentEnergyInMeV,(c2))); |
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135 | } |
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136 | else if(Z>=26 && Z<36) |
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137 | { |
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138 | crossSectionsInBarn = a2+b2*(std::log(incidentEnergyInMeV))+c2*(std::pow(std::log(incidentEnergyInMeV),2))+d2*(std::pow(std::log(incidentEnergyInMeV),3)); |
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139 | } |
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140 | else if(Z>65 && Z<=92) |
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141 | { |
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142 | crossSectionsInBarn = a2+b2*(std::log(incidentEnergyInMeV))+c2*(std::pow(std::log(incidentEnergyInMeV),2))+d2*(std::pow(std::log(incidentEnergyInMeV),3))+e2*(std::pow(std::log(incidentEnergyInMeV),4)); |
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143 | } |
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144 | } |
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145 | |
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146 | // if(Z<26 && incidentEnergyInMeV <= energy) |
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147 | // { |
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148 | // crossSectionsInBarn = (std::pow(incidentEnergyInMeV,(a1)))*std::exp((b1)-((c1)*incidentEnergyInMeV)); |
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149 | // } |
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150 | // else if(Z>=26 && incidentEnergyInMeV <= energy) |
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151 | // { |
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152 | // crossSectionsInBarn = a1*(std::pow(b1,(1./incidentEnergyInMeV)))*(std::pow(incidentEnergyInMeV,c1)); |
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153 | // } |
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154 | // else if((Z<26 || (36<=Z && Z<=65)) && incidentEnergyInMeV > energy) |
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155 | // { |
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156 | // crossSectionsInBarn = (a2)*(std::pow((b2),(1./incidentEnergyInMeV)))*(std::pow(incidentEnergyInMeV,(c2))); |
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157 | // } |
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158 | // else if(Z>=26 && Z<=35 && incidentEnergyInMeV > energy) |
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159 | // { |
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160 | // crossSectionsInBarn = a2+b2*(std::log(incidentEnergyInMeV))+c2*(std::pow(std::log(incidentEnergyInMeV),2))+d2*(std::pow(std::log(incidentEnergyInMeV),3)); |
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161 | // } |
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162 | // else if(Z>=67 && Z<=92 && incidentEnergyInMeV > energy) |
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163 | // { |
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164 | // crossSectionsInBarn = a2+b2*(std::log(incidentEnergyInMeV))+c2*(std::pow(std::log(incidentEnergyInMeV),2))+d2*(std::pow(std::log(incidentEnergyInMeV),3))+e2*(std::pow(std::log(incidentEnergyInMeV),4)); |
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165 | // } |
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166 | |
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167 | crossSections = crossSectionsInBarn*barn; |
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168 | return crossSections; |
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169 | } |
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170 | |
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171 | // This function gives the atomic cross section of k shell only |
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172 | void G4hShellCrossSectionDoubleExp::SetTotalCS(G4double value) |
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173 | { |
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174 | atomTotalCrossSection = value; |
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175 | } |
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176 | |
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177 | //A new implementation of Probability to calculate the cross section probability for k shell only |
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178 | std::vector<G4double> G4hShellCrossSectionDoubleExp::Probabilities( |
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179 | G4int Z, |
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180 | G4double incidentEnergy, |
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181 | G4double hMass, |
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182 | G4double deltaEnergy |
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183 | ) const |
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184 | { |
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185 | hMass = 0.0; |
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186 | deltaEnergy = 0.0; |
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187 | |
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188 | std::vector<G4double> kProbability;//(0); |
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189 | |
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190 | |
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191 | if (atomTotalCrossSection!=0.) // SI - 26 june 2008 |
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192 | |
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193 | { |
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194 | kProbability.push_back(GetCrossSectionDoubleExp(Z,incidentEnergy)/atomTotalCrossSection); |
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195 | // ---- MGP ---- Next line corrected to kProbability[0] instead of [1], which is not initialized! |
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196 | kProbability.push_back(1 - kProbability[0]); |
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197 | } |
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198 | |
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199 | return kProbability; |
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200 | } |
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201 | |
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202 | |
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203 | |
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