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 | // Thermal Neutron Scattering |
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27 | // Koi, Tatsumi (SLAC/SCCS) |
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28 | // |
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29 | // Class Description: |
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30 | // |
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31 | // Final State Generators for a high precision (based on evaluated data |
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32 | // libraries) description of themal neutron scattering below 4 eV; |
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33 | // Based on Thermal neutron scattering files |
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34 | // from the evaluated nuclear data files ENDF/B-VI, Release2 |
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35 | // To be used in your physics list in case you need this physics. |
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36 | // In this case you want to register an object of this class with |
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37 | // the corresponding process. |
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38 | |
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39 | |
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40 | // 070625 Fix memory leaking at destructor by T. Koi |
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41 | // 081201 Fix memory leaking at destructor by T. Koi |
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42 | |
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43 | #include "G4NeutronHPThermalScattering.hh" |
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44 | #include "G4Neutron.hh" |
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45 | #include "G4ElementTable.hh" |
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46 | |
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47 | |
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48 | |
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49 | G4NeutronHPThermalScattering::G4NeutronHPThermalScattering() |
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50 | { |
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51 | |
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52 | theHPElastic = new G4NeutronHPElastic(); |
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53 | |
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54 | SetMinEnergy( 0.*eV ); |
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55 | SetMaxEnergy( 4*eV ); |
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56 | theXSection = new G4NeutronHPThermalScatteringData(); |
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57 | theXSection->BuildPhysicsTable( *(G4Neutron::Neutron()) ); |
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58 | |
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59 | // Check Elements |
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60 | std::vector< G4int > indexOfThermalElement; |
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61 | static const G4ElementTable* theElementTable = G4Element::GetElementTable(); |
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62 | size_t numberOfElements = G4Element::GetNumberOfElements(); |
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63 | for ( size_t i = 0 ; i < numberOfElements ; i++ ) |
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64 | { |
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65 | if ( names.IsThisThermalElement ( (*theElementTable)[i]->GetName() ) ) |
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66 | { |
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67 | indexOfThermalElement.push_back( i ); |
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68 | } |
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69 | } |
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70 | |
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71 | if ( !getenv("G4NEUTRONHPDATA") ) |
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72 | throw G4HadronicException(__FILE__, __LINE__, "Please setenv G4NEUTRONHPDATA to point to the neutron cross-section files."); |
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73 | dirName = getenv("G4NEUTRONHPDATA"); |
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74 | |
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75 | // Read data |
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76 | // Element (id) -> FS Type -> read file |
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77 | for ( size_t i = 0 ; i < indexOfThermalElement.size() ; i++ ) |
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78 | { |
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79 | //G4cout << "G4NeutronHPThermalScattering " << (*theElementTable)[i]->GetName() << G4endl; |
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80 | G4String tsndlName = names.GetTS_NDL_Name ( (*theElementTable)[ indexOfThermalElement[ i ] ]->GetName() ); |
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81 | //G4cout << "G4NeutronHPThermalScattering " << tsndlName << std::endl; |
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82 | |
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83 | // coherent elastic |
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84 | G4String fsName = "/ThermalScattering/Coherent/FS/"; |
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85 | G4String fileName = dirName + fsName + tsndlName; |
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86 | coherentFSs.insert ( std::pair < G4int , std::map < G4double , std::vector < std::pair< G4double , G4double >* >* >* > ( indexOfThermalElement[ i ] , readACoherentFSDATA( fileName ) ) ); |
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87 | |
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88 | // incoherent elastic |
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89 | fsName = "/ThermalScattering/Incoherent/FS/"; |
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90 | fileName = dirName + fsName + tsndlName; |
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91 | incoherentFSs.insert ( std::pair < G4int , std::map < G4double , std::vector < E_isoAng* >* >* > ( indexOfThermalElement[ i ] , readAnIncoherentFSDATA( fileName ) ) ); |
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92 | |
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93 | // inelastic |
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94 | fsName = "/ThermalScattering/Inelastic/FS/"; |
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95 | fileName = dirName + fsName + tsndlName; |
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96 | inelasticFSs.insert ( std::pair < G4int , std::map < G4double , std::vector < E_P_E_isoAng* >* >* > ( indexOfThermalElement[ i ] , readAnInelasticFSDATA( fileName ) ) ); |
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97 | } |
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98 | |
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99 | } |
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100 | |
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101 | |
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102 | |
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103 | G4NeutronHPThermalScattering::~G4NeutronHPThermalScattering() |
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104 | { |
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105 | |
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106 | for ( std::map < G4int , std::map < G4double , std::vector < E_isoAng* >* >* >::iterator it = incoherentFSs.begin() ; it != incoherentFSs.end() ; it++ ) |
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107 | { |
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108 | std::map < G4double , std::vector < E_isoAng* >* >::iterator itt; |
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109 | for ( itt = it->second->begin() ; itt != it->second->end() ; itt++ ) |
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110 | { |
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111 | std::vector< E_isoAng* >::iterator ittt; |
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112 | for ( ittt = itt->second->begin(); ittt != itt->second->end() ; ittt++ ) |
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113 | { |
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114 | delete *ittt; |
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115 | } |
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116 | delete itt->second; |
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117 | } |
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118 | delete it->second; |
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119 | } |
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120 | |
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121 | for ( std::map < G4int , std::map < G4double , std::vector < std::pair< G4double , G4double >* >* >* >::iterator it = coherentFSs.begin() ; it != coherentFSs.end() ; it++ ) |
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122 | { |
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123 | std::map < G4double , std::vector < std::pair< G4double , G4double >* >* >::iterator itt; |
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124 | for ( itt = it->second->begin() ; itt != it->second->end() ; itt++ ) |
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125 | { |
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126 | std::vector < std::pair< G4double , G4double >* >::iterator ittt; |
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127 | for ( ittt = itt->second->begin(); ittt != itt->second->end() ; ittt++ ) |
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128 | { |
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129 | delete *ittt; |
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130 | } |
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131 | delete itt->second; |
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132 | } |
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133 | delete it->second; |
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134 | } |
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135 | |
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136 | for ( std::map < G4int , std::map < G4double , std::vector < E_P_E_isoAng* >* >* >::iterator it = inelasticFSs.begin() ; it != inelasticFSs.end() ; it++ ) |
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137 | { |
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138 | std::map < G4double , std::vector < E_P_E_isoAng* >* >::iterator itt; |
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139 | for ( itt = it->second->begin() ; itt != it->second->end() ; itt++ ) |
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140 | { |
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141 | std::vector < E_P_E_isoAng* >::iterator ittt; |
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142 | for ( ittt = itt->second->begin(); ittt != itt->second->end() ; ittt++ ) |
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143 | { |
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144 | std::vector < E_isoAng* >::iterator it4; |
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145 | for ( it4 = (*ittt)->vE_isoAngle.begin() ; it4 != (*ittt)->vE_isoAngle.end() ; it4++ ) |
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146 | { |
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147 | delete *it4; |
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148 | } |
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149 | delete *ittt; |
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150 | } |
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151 | delete itt->second; |
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152 | } |
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153 | delete it->second; |
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154 | } |
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155 | |
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156 | delete theHPElastic; |
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157 | delete theXSection; |
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158 | } |
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159 | |
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160 | |
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161 | |
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162 | std::map < G4double , std::vector < std::pair< G4double , G4double >* >* >* G4NeutronHPThermalScattering::readACoherentFSDATA( G4String name ) |
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163 | { |
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164 | |
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165 | std::map < G4double , std::vector < std::pair< G4double , G4double >* >* >* aCoherentFSDATA = new std::map < G4double , std::vector < std::pair< G4double , G4double >* >* >; |
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166 | |
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167 | std::ifstream theChannel( name.c_str() ); |
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168 | |
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169 | std::vector< G4double > vBraggE; |
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170 | |
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171 | G4int dummy; |
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172 | while ( theChannel >> dummy ) // MF |
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173 | { |
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174 | theChannel >> dummy; // MT |
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175 | G4double temp; |
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176 | theChannel >> temp; |
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177 | std::vector < std::pair< G4double , G4double >* >* anBragE_P = new std::vector < std::pair< G4double , G4double >* >; |
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178 | |
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179 | G4int n; |
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180 | theChannel >> n; |
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181 | for ( G4int i = 0 ; i < n ; i++ ) |
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182 | { |
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183 | G4double Ei; |
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184 | G4double Pi; |
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185 | if ( aCoherentFSDATA->size() == 0 ) |
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186 | { |
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187 | theChannel >> Ei; |
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188 | vBraggE.push_back( Ei ); |
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189 | } |
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190 | else |
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191 | { |
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192 | Ei = vBraggE[ i ]; |
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193 | } |
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194 | theChannel >> Pi; |
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195 | anBragE_P->push_back ( new std::pair < G4double , G4double > ( Ei , Pi ) ); |
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196 | //G4cout << "Coherent Elastic " << Ei << " " << Pi << G4endl; |
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197 | } |
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198 | aCoherentFSDATA->insert ( std::pair < G4double , std::vector < std::pair< G4double , G4double >* >* > ( temp , anBragE_P ) ); |
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199 | } |
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200 | |
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201 | return aCoherentFSDATA; |
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202 | } |
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203 | |
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204 | |
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205 | |
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206 | std::map < G4double , std::vector < E_P_E_isoAng* >* >* G4NeutronHPThermalScattering::readAnInelasticFSDATA ( G4String name ) |
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207 | { |
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208 | std::map < G4double , std::vector < E_P_E_isoAng* >* >* anT_E_P_E_isoAng = new std::map < G4double , std::vector < E_P_E_isoAng* >* >; |
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209 | |
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210 | std::ifstream theChannel( name.c_str() ); |
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211 | |
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212 | G4int dummy; |
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213 | while ( theChannel >> dummy ) // MF |
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214 | { |
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215 | theChannel >> dummy; // MT |
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216 | G4double temp; |
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217 | theChannel >> temp; |
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218 | std::vector < E_P_E_isoAng* >* vE_P_E_isoAng = new std::vector < E_P_E_isoAng* >; |
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219 | G4int n; |
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220 | theChannel >> n; |
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221 | for ( G4int i = 0 ; i < n ; i++ ) |
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222 | { |
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223 | vE_P_E_isoAng->push_back ( readAnE_P_E_isoAng ( &theChannel ) ); |
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224 | } |
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225 | anT_E_P_E_isoAng->insert ( std::pair < G4double , std::vector < E_P_E_isoAng* >* > ( temp , vE_P_E_isoAng ) ); |
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226 | } |
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227 | theChannel.close(); |
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228 | |
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229 | return anT_E_P_E_isoAng; |
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230 | } |
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231 | |
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232 | |
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233 | |
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234 | E_P_E_isoAng* G4NeutronHPThermalScattering::readAnE_P_E_isoAng( std::ifstream* file ) |
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235 | { |
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236 | E_P_E_isoAng* aData = new E_P_E_isoAng; |
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237 | |
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238 | G4double dummy; |
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239 | G4double energy; |
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240 | G4int nep , nl; |
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241 | *file >> dummy; |
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242 | *file >> energy; |
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243 | aData->energy = energy*eV; |
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244 | *file >> dummy; |
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245 | *file >> dummy; |
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246 | *file >> nep; |
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247 | *file >> nl; |
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248 | aData->n = nep/nl; |
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249 | for ( G4int i = 0 ; i < aData->n ; i++ ) |
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250 | { |
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251 | G4double prob; |
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252 | E_isoAng* anE_isoAng = new E_isoAng; |
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253 | aData->vE_isoAngle.push_back( anE_isoAng ); |
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254 | *file >> energy; |
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255 | anE_isoAng->energy = energy*eV; |
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256 | anE_isoAng->n = nl - 2; |
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257 | anE_isoAng->isoAngle.resize( anE_isoAng->n ); |
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258 | *file >> prob; |
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259 | aData->prob.push_back( prob ); |
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260 | //G4cout << "G4NeutronHPThermalScattering inelastic " << energy/eV << " " << i << " " << prob << " " << aData->prob[ i ] << G4endl; |
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261 | for ( G4int j = 0 ; j < anE_isoAng->n ; j++ ) |
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262 | { |
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263 | G4double x; |
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264 | *file >> x; |
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265 | anE_isoAng->isoAngle[j] = x ; |
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266 | //G4cout << "G4NeutronHPThermalScattering inelastic " << x << anE_isoAng->isoAngle[j] << G4endl; |
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267 | } |
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268 | } |
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269 | |
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270 | // Calcuate sum_of_provXdEs |
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271 | G4double total = 0; |
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272 | for ( G4int i = 0 ; i < aData->n - 1 ; i++ ) |
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273 | { |
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274 | G4double E_L = aData->vE_isoAngle[i]->energy/eV; |
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275 | G4double E_H = aData->vE_isoAngle[i+1]->energy/eV; |
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276 | G4double dE = E_H - E_L; |
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277 | total += ( ( aData->prob[i] ) * dE ); |
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278 | } |
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279 | aData->sum_of_probXdEs = total; |
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280 | |
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281 | return aData; |
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282 | } |
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283 | |
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284 | |
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285 | |
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286 | std::map < G4double , std::vector < E_isoAng* >* >* G4NeutronHPThermalScattering::readAnIncoherentFSDATA ( G4String name ) |
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287 | { |
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288 | std::map < G4double , std::vector < E_isoAng* >* >* T_E = new std::map < G4double , std::vector < E_isoAng* >* >; |
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289 | |
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290 | std::ifstream theChannel( name.c_str() ); |
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291 | |
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292 | G4int dummy; |
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293 | while ( theChannel >> dummy ) // MF |
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294 | { |
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295 | theChannel >> dummy; // MT |
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296 | G4double temp; |
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297 | theChannel >> temp; |
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298 | std::vector < E_isoAng* >* vE_isoAng = new std::vector < E_isoAng* >; |
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299 | G4int n; |
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300 | theChannel >> n; |
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301 | for ( G4int i = 0 ; i < n ; i++ ) |
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302 | vE_isoAng->push_back ( readAnE_isoAng( &theChannel ) ); |
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303 | T_E->insert ( std::pair < G4double , std::vector < E_isoAng* >* > ( temp , vE_isoAng ) ); |
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304 | } |
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305 | theChannel.close(); |
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306 | |
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307 | return T_E; |
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308 | } |
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309 | |
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310 | |
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311 | |
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312 | E_isoAng* G4NeutronHPThermalScattering::readAnE_isoAng( std::ifstream* file ) |
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313 | { |
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314 | E_isoAng* aData = new E_isoAng; |
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315 | |
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316 | G4double dummy; |
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317 | G4double energy; |
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318 | G4int n; |
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319 | *file >> dummy; |
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320 | *file >> energy; |
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321 | *file >> dummy; |
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322 | *file >> dummy; |
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323 | *file >> n; |
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324 | *file >> dummy; |
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325 | aData->energy = energy*eV; |
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326 | aData->n = n-2; |
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327 | aData->isoAngle.resize( n ); |
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328 | |
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329 | *file >> dummy; |
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330 | *file >> dummy; |
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331 | for ( G4int i = 0 ; i < aData->n ; i++ ) |
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332 | *file >> aData->isoAngle[i]; |
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333 | |
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334 | return aData; |
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335 | } |
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336 | |
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337 | |
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338 | |
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339 | G4HadFinalState* G4NeutronHPThermalScattering::ApplyYourself(const G4HadProjectile& aTrack, G4Nucleus& aNucleus ) |
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340 | { |
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341 | |
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342 | // Select Element > Reaction > |
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343 | |
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344 | const G4Material * theMaterial = aTrack.GetMaterial(); |
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345 | G4double aTemp = theMaterial->GetTemperature(); |
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346 | G4int n = theMaterial->GetNumberOfElements(); |
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347 | static const G4ElementTable* theElementTable = G4Element::GetElementTable(); |
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348 | |
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349 | G4bool findThermalElement = false; |
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350 | G4int ielement; |
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351 | for ( G4int i = 0; i < n ; i++ ) |
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352 | { |
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353 | G4int index = theMaterial->GetElement(i)->GetIndex(); |
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354 | if ( aNucleus.GetZ() == (*theElementTable)[index]->GetZ() && ( names.IsThisThermalElement ( (*theElementTable)[index]->GetName() ) ) ) |
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355 | { |
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356 | ielement = index; |
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357 | findThermalElement = true; |
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358 | break; |
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359 | } |
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360 | } |
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361 | |
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362 | |
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363 | if ( findThermalElement == true ) |
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364 | { |
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365 | |
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366 | // Select Reaction (Inelastic, coherent, incoherent) |
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367 | |
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368 | G4ParticleDefinition* pd = const_cast< G4ParticleDefinition* >( aTrack.GetDefinition() ); |
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369 | G4DynamicParticle* dp = new G4DynamicParticle ( pd , aTrack.Get4Momentum() ); |
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370 | G4double total = theXSection->GetCrossSection( dp , (*theElementTable)[ ielement ] , aTemp ); |
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371 | G4double inelastic = theXSection->GetInelasticCrossSection( dp , (*theElementTable)[ ielement ] , aTemp ); |
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372 | |
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373 | G4double random = G4UniformRand(); |
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374 | if ( random <= inelastic/total ) |
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375 | { |
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376 | // Inelastic |
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377 | |
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378 | // T_L and T_H |
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379 | std::map < G4double , std::vector< E_P_E_isoAng* >* >::iterator it; |
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380 | std::vector<G4double> v_temp; |
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381 | v_temp.clear(); |
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382 | for ( it = inelasticFSs.find( ielement )->second->begin() ; it != inelasticFSs.find( ielement )->second->end() ; it++ ) |
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383 | { |
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384 | v_temp.push_back( it->first ); |
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385 | } |
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386 | |
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387 | // T_L T_H |
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388 | std::pair < G4double , G4double > tempLH = find_LH ( aTemp , &v_temp ); |
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389 | // |
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390 | // For T_L aNEP_EPM_TL and T_H aNEP_EPM_TH |
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391 | // |
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392 | std::vector< E_P_E_isoAng* >* vNEP_EPM_TL = 0; |
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393 | std::vector< E_P_E_isoAng* >* vNEP_EPM_TH = 0; |
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394 | |
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395 | if ( tempLH.first != 0.0 && tempLH.second != 0.0 ) |
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396 | { |
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397 | vNEP_EPM_TL = inelasticFSs.find( ielement )->second->find ( tempLH.first/kelvin )->second; |
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398 | vNEP_EPM_TH = inelasticFSs.find( ielement )->second->find ( tempLH.second/kelvin )->second; |
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399 | } |
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400 | else if ( tempLH.first == 0.0 ) |
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401 | { |
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402 | std::map < G4double , std::vector< E_P_E_isoAng* >* >::iterator itm; |
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403 | itm = inelasticFSs.find( ielement )->second->begin(); |
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404 | vNEP_EPM_TL = itm->second; |
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405 | itm++; |
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406 | vNEP_EPM_TH = itm->second; |
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407 | } |
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408 | else if ( tempLH.second == 0.0 ) |
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409 | { |
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410 | std::map < G4double , std::vector< E_P_E_isoAng* >* >::iterator itm; |
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411 | itm = inelasticFSs.find( ielement )->second->end(); |
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412 | itm--; |
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413 | vNEP_EPM_TH = itm->second; |
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414 | itm--; |
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415 | vNEP_EPM_TL = itm->second; |
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416 | } |
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417 | |
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418 | // |
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419 | |
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420 | G4double rand_for_sE = G4UniformRand(); |
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421 | |
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422 | std::pair< G4double , E_isoAng > TL = create_sE_and_EPM_from_pE_and_vE_P_E_isoAng ( rand_for_sE , aTrack.GetKineticEnergy() , vNEP_EPM_TL ); |
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423 | std::pair< G4double , E_isoAng > TH = create_sE_and_EPM_from_pE_and_vE_P_E_isoAng ( rand_for_sE , aTrack.GetKineticEnergy() , vNEP_EPM_TH ); |
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424 | |
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425 | G4double sE; |
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426 | sE = get_linear_interpolated ( aTemp , std::pair < G4double , G4double > ( tempLH.first , TL.first ) , std::pair < G4double , G4double > ( tempLH.second , TH.first ) ); |
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427 | E_isoAng anE_isoAng; |
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428 | if ( TL.second.n == TH.second.n ) |
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429 | { |
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430 | anE_isoAng.energy = sE; |
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431 | anE_isoAng.n = TL.second.n; |
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432 | for ( G4int i=0 ; i < anE_isoAng.n ; i++ ) |
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433 | { |
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434 | G4double angle; |
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435 | angle = get_linear_interpolated ( aTemp , std::pair< G4double , G4double > ( tempLH.first , TL.second.isoAngle[ i ] ) , std::pair< G4double , G4double > ( tempLH.second , TH.second.isoAngle[ i ] ) ); |
---|
436 | anE_isoAng.isoAngle.push_back( angle ); |
---|
437 | } |
---|
438 | } |
---|
439 | else |
---|
440 | { |
---|
441 | std::cout << "Do not Suuport yet." << std::endl; |
---|
442 | } |
---|
443 | |
---|
444 | //set |
---|
445 | theParticleChange.SetEnergyChange( sE ); |
---|
446 | G4double mu = getMu( &anE_isoAng ); |
---|
447 | theParticleChange.SetMomentumChange( 0.0 , std::sqrt ( 1 - mu*mu ) , mu ); |
---|
448 | |
---|
449 | } |
---|
450 | else if ( random <= ( inelastic + theXSection->GetCoherentCrossSection( dp , (*theElementTable)[ ielement ] , aTemp ) ) / total ) |
---|
451 | { |
---|
452 | // Coherent Elastic |
---|
453 | |
---|
454 | G4double E = aTrack.GetKineticEnergy(); |
---|
455 | |
---|
456 | // T_L and T_H |
---|
457 | std::map < G4double , std::vector< std::pair< G4double , G4double >* >* >::iterator it; |
---|
458 | std::vector<G4double> v_temp; |
---|
459 | v_temp.clear(); |
---|
460 | for ( it = coherentFSs.find( ielement )->second->begin() ; it != coherentFSs.find( ielement )->second->end() ; it++ ) |
---|
461 | { |
---|
462 | v_temp.push_back( it->first ); |
---|
463 | } |
---|
464 | |
---|
465 | // T_L T_H |
---|
466 | std::pair < G4double , G4double > tempLH = find_LH ( aTemp , &v_temp ); |
---|
467 | // |
---|
468 | // |
---|
469 | // For T_L anEPM_TL and T_H anEPM_TH |
---|
470 | // |
---|
471 | std::vector< std::pair< G4double , G4double >* >* pvE_p_TL = 0; |
---|
472 | std::vector< std::pair< G4double , G4double >* >* pvE_p_TH = 0; |
---|
473 | |
---|
474 | if ( tempLH.first != 0.0 && tempLH.second != 0.0 ) |
---|
475 | { |
---|
476 | pvE_p_TL = coherentFSs.find( ielement )->second->find ( tempLH.first/kelvin )->second; |
---|
477 | pvE_p_TH = coherentFSs.find( ielement )->second->find ( tempLH.first/kelvin )->second; |
---|
478 | } |
---|
479 | else if ( tempLH.first == 0.0 ) |
---|
480 | { |
---|
481 | pvE_p_TL = coherentFSs.find( ielement )->second->find ( v_temp[ 0 ] )->second; |
---|
482 | pvE_p_TH = coherentFSs.find( ielement )->second->find ( v_temp[ 1 ] )->second; |
---|
483 | } |
---|
484 | else if ( tempLH.second == 0.0 ) |
---|
485 | { |
---|
486 | pvE_p_TL = coherentFSs.find( ielement )->second->find ( v_temp.back() )->second; |
---|
487 | std::vector< G4double >::iterator itv; |
---|
488 | itv = v_temp.end(); |
---|
489 | itv--; |
---|
490 | itv--; |
---|
491 | pvE_p_TL = coherentFSs.find( ielement )->second->find ( *itv )->second; |
---|
492 | } |
---|
493 | |
---|
494 | |
---|
495 | std::vector< G4double > vE_T; |
---|
496 | std::vector< G4double > vp_T; |
---|
497 | |
---|
498 | G4int n1 = pvE_p_TL->size(); |
---|
499 | //G4int n2 = pvE_p_TH->size(); |
---|
500 | |
---|
501 | for ( G4int i=1 ; i < n1 ; i++ ) |
---|
502 | { |
---|
503 | if ( (*pvE_p_TL)[i]->first != (*pvE_p_TH)[i]->first ) abort(); |
---|
504 | vE_T.push_back ( (*pvE_p_TL)[i]->first ); |
---|
505 | vp_T.push_back ( get_linear_interpolated ( aTemp , std::pair< G4double , G4double > ( tempLH.first , (*pvE_p_TL)[i]->second ) , std::pair< G4double , G4double > ( tempLH.second , (*pvE_p_TL)[i]->second ) ) ); |
---|
506 | } |
---|
507 | |
---|
508 | G4int j = 0; |
---|
509 | for ( G4int i = 1 ; i < n ; i++ ) |
---|
510 | { |
---|
511 | if ( E/eV < vE_T[ i ] ) |
---|
512 | { |
---|
513 | j = i-1; |
---|
514 | break; |
---|
515 | } |
---|
516 | } |
---|
517 | |
---|
518 | G4double rand_for_mu = G4UniformRand(); |
---|
519 | |
---|
520 | G4int k = 0; |
---|
521 | for ( G4int i = 1 ; i < j ; i++ ) |
---|
522 | { |
---|
523 | G4double Pi = vp_T[ i ] / vp_T[ j ]; |
---|
524 | if ( rand_for_mu < Pi ) |
---|
525 | { |
---|
526 | k = i-1; |
---|
527 | break; |
---|
528 | } |
---|
529 | } |
---|
530 | |
---|
531 | G4double Ei = vE_T[ j ]; |
---|
532 | |
---|
533 | G4double mu = 1 - 2 * Ei / (E/eV) ; |
---|
534 | |
---|
535 | theParticleChange.SetEnergyChange( E ); |
---|
536 | theParticleChange.SetMomentumChange( 0.0 , std::sqrt ( 1 - mu*mu ) , mu ); |
---|
537 | |
---|
538 | |
---|
539 | } |
---|
540 | else |
---|
541 | { |
---|
542 | // InCoherent Elastic |
---|
543 | |
---|
544 | // T_L and T_H |
---|
545 | std::map < G4double , std::vector < E_isoAng* >* >::iterator it; |
---|
546 | std::vector<G4double> v_temp; |
---|
547 | v_temp.clear(); |
---|
548 | for ( it = incoherentFSs.find( ielement )->second->begin() ; it != incoherentFSs.find( ielement )->second->end() ; it++ ) |
---|
549 | { |
---|
550 | v_temp.push_back( it->first ); |
---|
551 | } |
---|
552 | |
---|
553 | // T_L T_H |
---|
554 | std::pair < G4double , G4double > tempLH = find_LH ( aTemp , &v_temp ); |
---|
555 | |
---|
556 | // |
---|
557 | // For T_L anEPM_TL and T_H anEPM_TH |
---|
558 | // |
---|
559 | |
---|
560 | E_isoAng anEPM_TL_E; |
---|
561 | E_isoAng anEPM_TH_E; |
---|
562 | |
---|
563 | if ( tempLH.first != 0.0 && tempLH.second != 0.0 ) |
---|
564 | { |
---|
565 | anEPM_TL_E = create_E_isoAng_from_energy ( aTrack.GetKineticEnergy() , incoherentFSs.find( ielement )->second->find ( tempLH.first/kelvin )->second ); |
---|
566 | anEPM_TH_E = create_E_isoAng_from_energy ( aTrack.GetKineticEnergy() , incoherentFSs.find( ielement )->second->find ( tempLH.second/kelvin )->second ); |
---|
567 | } |
---|
568 | else if ( tempLH.first == 0.0 ) |
---|
569 | { |
---|
570 | anEPM_TL_E = create_E_isoAng_from_energy ( aTrack.GetKineticEnergy() , incoherentFSs.find( ielement )->second->find ( v_temp[ 0 ] )->second ); |
---|
571 | anEPM_TH_E = create_E_isoAng_from_energy ( aTrack.GetKineticEnergy() , incoherentFSs.find( ielement )->second->find ( v_temp[ 1 ] )->second ); |
---|
572 | } |
---|
573 | else if ( tempLH.second == 0.0 ) |
---|
574 | { |
---|
575 | anEPM_TH_E = create_E_isoAng_from_energy ( aTrack.GetKineticEnergy() , incoherentFSs.find( ielement )->second->find ( v_temp.back() )->second ); |
---|
576 | std::vector< G4double >::iterator itv; |
---|
577 | itv = v_temp.end(); |
---|
578 | itv--; |
---|
579 | itv--; |
---|
580 | anEPM_TL_E = create_E_isoAng_from_energy ( aTrack.GetKineticEnergy() , incoherentFSs.find( ielement )->second->find ( *itv )->second ); |
---|
581 | } |
---|
582 | |
---|
583 | // E_isoAng for aTemp and aTrack.GetKineticEnergy() |
---|
584 | E_isoAng anEPM_T_E; |
---|
585 | |
---|
586 | if ( anEPM_TL_E.n == anEPM_TH_E.n ) |
---|
587 | { |
---|
588 | anEPM_T_E.n = anEPM_TL_E.n; |
---|
589 | for ( G4int i=0 ; i < anEPM_TL_E.n ; i++ ) |
---|
590 | { |
---|
591 | G4double angle; |
---|
592 | angle = get_linear_interpolated ( aTemp , std::pair< G4double , G4double > ( tempLH.first , anEPM_TL_E.isoAngle[ i ] ) , std::pair< G4double , G4double > ( tempLH.second , anEPM_TH_E.isoAngle[ i ] ) ); |
---|
593 | anEPM_T_E.isoAngle.push_back( angle ); |
---|
594 | } |
---|
595 | } |
---|
596 | else |
---|
597 | { |
---|
598 | std::cout << "Do not Suuport yet." << std::endl; |
---|
599 | } |
---|
600 | |
---|
601 | // Decide mu |
---|
602 | G4double mu = getMu ( &anEPM_T_E ); |
---|
603 | |
---|
604 | // Set Final State |
---|
605 | theParticleChange.SetEnergyChange( aTrack.GetKineticEnergy() ); // No energy change in Elastic |
---|
606 | theParticleChange.SetMomentumChange( 0.0 , std::sqrt ( 1 - mu*mu ) , mu ); |
---|
607 | |
---|
608 | } |
---|
609 | delete dp; |
---|
610 | |
---|
611 | return &theParticleChange; |
---|
612 | |
---|
613 | } |
---|
614 | else |
---|
615 | { |
---|
616 | // Not thermal element |
---|
617 | // Neutron HP will handle |
---|
618 | return theHPElastic -> ApplyYourself( aTrack, aNucleus ); |
---|
619 | } |
---|
620 | |
---|
621 | } |
---|
622 | |
---|
623 | |
---|
624 | |
---|
625 | G4double G4NeutronHPThermalScattering::getMu( E_isoAng* anEPM ) |
---|
626 | { |
---|
627 | |
---|
628 | G4double random = G4UniformRand(); |
---|
629 | G4double result = 0.0; |
---|
630 | |
---|
631 | G4int in = int ( random * ( (*anEPM).n ) ); |
---|
632 | |
---|
633 | if ( in != 0 ) |
---|
634 | { |
---|
635 | G4double mu_l = (*anEPM).isoAngle[ in-1 ]; |
---|
636 | G4double mu_h = (*anEPM).isoAngle[ in ]; |
---|
637 | result = ( mu_h - mu_l ) * ( random * ( (*anEPM).n ) - in ) + mu_l; |
---|
638 | } |
---|
639 | else |
---|
640 | { |
---|
641 | G4double x = random * (*anEPM).n; |
---|
642 | G4double D = ( (*anEPM).isoAngle[ 0 ] - ( -1 ) ) + ( 1 - (*anEPM).isoAngle[ (*anEPM).n - 1 ] ); |
---|
643 | G4double ratio = ( (*anEPM).isoAngle[ 0 ] - ( -1 ) ) / D; |
---|
644 | if ( x <= ratio ) |
---|
645 | { |
---|
646 | G4double mu_l = -1; |
---|
647 | G4double mu_h = (*anEPM).isoAngle[ 0 ]; |
---|
648 | result = ( mu_h - mu_l ) * x + mu_l; |
---|
649 | } |
---|
650 | else |
---|
651 | { |
---|
652 | G4double mu_l = (*anEPM).isoAngle[ (*anEPM).n - 1 ]; |
---|
653 | G4double mu_h = 1; |
---|
654 | result = ( mu_h - mu_l ) * x + mu_l; |
---|
655 | } |
---|
656 | } |
---|
657 | return result; |
---|
658 | } |
---|
659 | |
---|
660 | |
---|
661 | |
---|
662 | std::pair < G4double , G4double > G4NeutronHPThermalScattering::find_LH ( G4double x , std::vector< G4double >* aVector ) |
---|
663 | { |
---|
664 | G4double L = 0.0; |
---|
665 | G4double H = 0.0; |
---|
666 | std::vector< G4double >::iterator it; |
---|
667 | for ( it = aVector->begin() ; it != aVector->end() ; it++ ) |
---|
668 | { |
---|
669 | if ( x <= *it ) |
---|
670 | { |
---|
671 | H = *it; |
---|
672 | if ( it != aVector->begin() ) |
---|
673 | { |
---|
674 | it--; |
---|
675 | L = *it; |
---|
676 | } |
---|
677 | else |
---|
678 | { |
---|
679 | L = 0.0; |
---|
680 | } |
---|
681 | break; |
---|
682 | } |
---|
683 | } |
---|
684 | if ( H == 0.0 ) |
---|
685 | L = aVector->back(); |
---|
686 | |
---|
687 | return std::pair < G4double , G4double > ( L , H ); |
---|
688 | } |
---|
689 | |
---|
690 | |
---|
691 | |
---|
692 | G4double G4NeutronHPThermalScattering::get_linear_interpolated ( G4double x , std::pair< G4double , G4double > Low , std::pair< G4double , G4double > High ) |
---|
693 | { |
---|
694 | G4double y=0.0; |
---|
695 | if ( High.first - Low.first != 0 ) |
---|
696 | y = ( High.second - Low.second ) / ( High.first - Low.first ) * ( x - Low.first ) + Low.second; |
---|
697 | else |
---|
698 | std::cout << "G4NeutronHPThermalScattering liner interpolation err!!" << std::endl; |
---|
699 | |
---|
700 | return y; |
---|
701 | } |
---|
702 | |
---|
703 | |
---|
704 | |
---|
705 | E_isoAng G4NeutronHPThermalScattering::create_E_isoAng_from_energy ( G4double energy , std::vector< E_isoAng* >* vEPM ) |
---|
706 | { |
---|
707 | E_isoAng anEPM_T_E; |
---|
708 | |
---|
709 | std::vector< E_isoAng* >::iterator iv; |
---|
710 | |
---|
711 | std::vector< G4double > v_e; |
---|
712 | v_e.clear(); |
---|
713 | for ( iv = vEPM->begin() ; iv != vEPM->end() ; iv++ ) |
---|
714 | v_e.push_back ( (*iv)->energy ); |
---|
715 | |
---|
716 | std::pair < G4double , G4double > energyLH = find_LH ( energy , &v_e ); |
---|
717 | //std::cout << " " << energy/eV << " " << energyLH.first/eV << " " << energyLH.second/eV << std::endl; |
---|
718 | |
---|
719 | E_isoAng* panEPM_T_EL=0; |
---|
720 | E_isoAng* panEPM_T_EH=0; |
---|
721 | |
---|
722 | if ( energyLH.first != 0.0 && energyLH.second != 0.0 ) |
---|
723 | { |
---|
724 | for ( iv = vEPM->begin() ; iv != vEPM->end() ; iv++ ) |
---|
725 | { |
---|
726 | if ( energyLH.first == (*iv)->energy ) |
---|
727 | break; |
---|
728 | } |
---|
729 | panEPM_T_EL = *iv; |
---|
730 | iv++; |
---|
731 | panEPM_T_EH = *iv; |
---|
732 | } |
---|
733 | else if ( energyLH.first == 0.0 ) |
---|
734 | { |
---|
735 | panEPM_T_EL = (*vEPM)[0]; |
---|
736 | panEPM_T_EH = (*vEPM)[1]; |
---|
737 | } |
---|
738 | else if ( energyLH.second == 0.0 ) |
---|
739 | { |
---|
740 | panEPM_T_EH = (*vEPM).back(); |
---|
741 | iv = vEPM->end(); |
---|
742 | iv--; |
---|
743 | iv--; |
---|
744 | panEPM_T_EL = *iv; |
---|
745 | } |
---|
746 | |
---|
747 | if ( panEPM_T_EL->n == panEPM_T_EH->n ) |
---|
748 | { |
---|
749 | anEPM_T_E.energy = energy; |
---|
750 | anEPM_T_E.n = panEPM_T_EL->n; |
---|
751 | |
---|
752 | for ( G4int i=0 ; i < panEPM_T_EL->n ; i++ ) |
---|
753 | { |
---|
754 | G4double angle; |
---|
755 | angle = get_linear_interpolated ( energy , std::pair< G4double , G4double > ( energyLH.first , panEPM_T_EL->isoAngle[ i ] ) , std::pair< G4double , G4double > ( energyLH.second , panEPM_T_EH->isoAngle[ i ] ) ); |
---|
756 | anEPM_T_E.isoAngle.push_back( angle ); |
---|
757 | } |
---|
758 | } |
---|
759 | else |
---|
760 | { |
---|
761 | G4cout << "G4NeutronHPThermalScattering Do not Suuport yet." << G4endl; |
---|
762 | } |
---|
763 | |
---|
764 | |
---|
765 | return anEPM_T_E; |
---|
766 | } |
---|
767 | |
---|
768 | |
---|
769 | |
---|
770 | G4double G4NeutronHPThermalScattering::get_secondary_energy_from_E_P_E_isoAng ( G4double random , E_P_E_isoAng* anE_P_E_isoAng ) |
---|
771 | { |
---|
772 | |
---|
773 | G4double secondary_energy = 0.0; |
---|
774 | |
---|
775 | G4int n = anE_P_E_isoAng->n; |
---|
776 | G4double sum_p = 0.0; // sum_p_H |
---|
777 | G4double sum_p_L = 0.0; |
---|
778 | |
---|
779 | G4double total=0.0; |
---|
780 | |
---|
781 | /* |
---|
782 | delete for speed up |
---|
783 | for ( G4int i = 0 ; i < n-1 ; i++ ) |
---|
784 | { |
---|
785 | G4double E_L = anE_P_E_isoAng->vE_isoAngle[i]->energy/eV; |
---|
786 | G4double E_H = anE_P_E_isoAng->vE_isoAngle[i+1]->energy/eV; |
---|
787 | G4double dE = E_H - E_L; |
---|
788 | total += ( ( anE_P_E_isoAng->prob[i] ) * dE ); |
---|
789 | } |
---|
790 | |
---|
791 | if ( std::abs( total - anE_P_E_isoAng->sum_of_probXdEs ) > 1.0e-14 ) std::cout << total - anE_P_E_isoAng->sum_of_probXdEs << std::endl; |
---|
792 | */ |
---|
793 | total = anE_P_E_isoAng->sum_of_probXdEs; |
---|
794 | |
---|
795 | for ( G4int i = 0 ; i < n-1 ; i++ ) |
---|
796 | { |
---|
797 | G4double E_L = anE_P_E_isoAng->vE_isoAngle[i]->energy/eV; |
---|
798 | G4double E_H = anE_P_E_isoAng->vE_isoAngle[i+1]->energy/eV; |
---|
799 | G4double dE = E_H - E_L; |
---|
800 | sum_p += ( ( anE_P_E_isoAng->prob[i] ) * dE ); |
---|
801 | |
---|
802 | if ( random <= sum_p/total ) |
---|
803 | { |
---|
804 | secondary_energy = get_linear_interpolated ( random , std::pair < G4double , G4double > ( sum_p_L/total , E_L ) , std::pair < G4double , G4double > ( sum_p/total , E_H ) ); |
---|
805 | secondary_energy = secondary_energy*eV; //need eV |
---|
806 | break; |
---|
807 | } |
---|
808 | sum_p_L = sum_p; |
---|
809 | } |
---|
810 | |
---|
811 | return secondary_energy; |
---|
812 | } |
---|
813 | |
---|
814 | |
---|
815 | |
---|
816 | std::pair< G4double , E_isoAng > G4NeutronHPThermalScattering::create_sE_and_EPM_from_pE_and_vE_P_E_isoAng ( G4double rand_for_sE , G4double pE , std::vector < E_P_E_isoAng* >* vNEP_EPM ) |
---|
817 | { |
---|
818 | |
---|
819 | std::map< G4double , G4int > map_energy; |
---|
820 | map_energy.clear(); |
---|
821 | std::vector< G4double > v_energy; |
---|
822 | v_energy.clear(); |
---|
823 | std::vector< E_P_E_isoAng* >::iterator itv; |
---|
824 | G4int i = 0; |
---|
825 | for ( itv = vNEP_EPM->begin(); itv != vNEP_EPM->end(); itv++ ) |
---|
826 | { |
---|
827 | v_energy.push_back( (*itv)->energy ); |
---|
828 | map_energy.insert( std::pair < G4double , G4int > ( (*itv)->energy , i ) ); |
---|
829 | i++; |
---|
830 | } |
---|
831 | |
---|
832 | std::pair < G4double , G4double > energyLH = find_LH ( pE , &v_energy ); |
---|
833 | |
---|
834 | E_P_E_isoAng* pE_P_E_isoAng_EL = 0; |
---|
835 | E_P_E_isoAng* pE_P_E_isoAng_EH = 0; |
---|
836 | |
---|
837 | if ( energyLH.first != 0.0 && energyLH.second != 0.0 ) |
---|
838 | { |
---|
839 | pE_P_E_isoAng_EL = (*vNEP_EPM)[ map_energy.find ( energyLH.first )->second ]; |
---|
840 | pE_P_E_isoAng_EH = (*vNEP_EPM)[ map_energy.find ( energyLH.second )->second ]; |
---|
841 | } |
---|
842 | else if ( energyLH.first == 0.0 ) |
---|
843 | { |
---|
844 | pE_P_E_isoAng_EL = (*vNEP_EPM)[ 0 ]; |
---|
845 | pE_P_E_isoAng_EH = (*vNEP_EPM)[ 1 ]; |
---|
846 | } |
---|
847 | if ( energyLH.second == 0.0 ) |
---|
848 | { |
---|
849 | pE_P_E_isoAng_EH = (*vNEP_EPM).back(); |
---|
850 | itv = vNEP_EPM->end(); |
---|
851 | itv--; |
---|
852 | itv--; |
---|
853 | pE_P_E_isoAng_EL = *itv; |
---|
854 | } |
---|
855 | |
---|
856 | |
---|
857 | G4double sE; |
---|
858 | G4double sE_L; |
---|
859 | G4double sE_H; |
---|
860 | |
---|
861 | |
---|
862 | sE_L = get_secondary_energy_from_E_P_E_isoAng ( rand_for_sE , pE_P_E_isoAng_EL ); |
---|
863 | sE_H = get_secondary_energy_from_E_P_E_isoAng ( rand_for_sE , pE_P_E_isoAng_EH ); |
---|
864 | |
---|
865 | sE = get_linear_interpolated ( pE , std::pair < G4double , G4double > ( energyLH.first , sE_L ) , std::pair < G4double , G4double > ( energyLH.second , sE_H ) ); |
---|
866 | |
---|
867 | |
---|
868 | E_isoAng E_isoAng_L = create_E_isoAng_from_energy ( sE , &(pE_P_E_isoAng_EL->vE_isoAngle) ); |
---|
869 | E_isoAng E_isoAng_H = create_E_isoAng_from_energy ( sE , &(pE_P_E_isoAng_EH->vE_isoAngle) ); |
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870 | |
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871 | E_isoAng anE_isoAng; |
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872 | if ( E_isoAng_L.n == E_isoAng_H.n ) |
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873 | { |
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874 | anE_isoAng.n = E_isoAng_L.n; |
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875 | for ( G4int i=0 ; i < anE_isoAng.n ; i++ ) |
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876 | { |
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877 | G4double angle; |
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878 | angle = get_linear_interpolated ( sE , std::pair< G4double , G4double > ( sE_L , E_isoAng_L.isoAngle[ i ] ) , std::pair< G4double , G4double > ( sE_H , E_isoAng_H.isoAngle[ i ] ) ); |
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879 | anE_isoAng.isoAngle.push_back( angle ); |
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880 | } |
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881 | } |
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882 | else |
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883 | { |
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884 | std::cout << "Do not Suuport yet." << std::endl; |
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885 | } |
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886 | |
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887 | |
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888 | |
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889 | return std::pair< G4double , E_isoAng >( sE , anE_isoAng); |
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890 | } |
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891 | |
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