[819] | 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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[962] | 41 | // 081201 Fix memory leaking at destructor by T. Koi |
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[819] | 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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[962] | 106 | for ( std::map < G4int , std::map < G4double , std::vector < E_isoAng* >* >* >::iterator it = incoherentFSs.begin() ; it != incoherentFSs.end() ; it++ ) |
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[819] | 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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[962] | 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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[819] | 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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[962] | 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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[819] | 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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[962] | 156 | delete theHPElastic; |
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[819] | 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 | // |
---|
| 419 | |
---|
| 420 | G4double rand_for_sE = G4UniformRand(); |
---|
| 421 | |
---|
| 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 ); |
---|
| 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 ); |
---|
| 424 | |
---|
| 425 | G4double sE; |
---|
| 426 | sE = get_linear_interpolated ( aTemp , std::pair < G4double , G4double > ( tempLH.first , TL.first ) , std::pair < G4double , G4double > ( tempLH.second , TH.first ) ); |
---|
| 427 | E_isoAng anE_isoAng; |
---|
| 428 | if ( TL.second.n == TH.second.n ) |
---|
| 429 | { |
---|
| 430 | anE_isoAng.energy = sE; |
---|
| 431 | anE_isoAng.n = TL.second.n; |
---|
| 432 | for ( G4int i=0 ; i < anE_isoAng.n ; i++ ) |
---|
| 433 | { |
---|
| 434 | G4double angle; |
---|
| 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; |
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| 825 | for ( itv = vNEP_EPM->begin(); itv != vNEP_EPM->end(); itv++ ) |
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| 826 | { |
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| 827 | v_energy.push_back( (*itv)->energy ); |
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| 828 | map_energy.insert( std::pair < G4double , G4int > ( (*itv)->energy , i ) ); |
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| 829 | i++; |
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| 830 | } |
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| 831 | |
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| 832 | std::pair < G4double , G4double > energyLH = find_LH ( pE , &v_energy ); |
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| 833 | |
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| 834 | E_P_E_isoAng* pE_P_E_isoAng_EL = 0; |
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| 835 | E_P_E_isoAng* pE_P_E_isoAng_EH = 0; |
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| 836 | |
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| 837 | if ( energyLH.first != 0.0 && energyLH.second != 0.0 ) |
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| 838 | { |
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| 839 | pE_P_E_isoAng_EL = (*vNEP_EPM)[ map_energy.find ( energyLH.first )->second ]; |
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| 840 | pE_P_E_isoAng_EH = (*vNEP_EPM)[ map_energy.find ( energyLH.second )->second ]; |
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| 841 | } |
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| 842 | else if ( energyLH.first == 0.0 ) |
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| 843 | { |
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| 844 | pE_P_E_isoAng_EL = (*vNEP_EPM)[ 0 ]; |
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| 845 | pE_P_E_isoAng_EH = (*vNEP_EPM)[ 1 ]; |
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| 846 | } |
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| 847 | if ( energyLH.second == 0.0 ) |
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| 848 | { |
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| 849 | pE_P_E_isoAng_EH = (*vNEP_EPM).back(); |
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| 850 | itv = vNEP_EPM->end(); |
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| 851 | itv--; |
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| 852 | itv--; |
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| 853 | pE_P_E_isoAng_EL = *itv; |
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| 854 | } |
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| 855 | |
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| 856 | |
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| 857 | G4double sE; |
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| 858 | G4double sE_L; |
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| 859 | G4double sE_H; |
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| 860 | |
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| 861 | |
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| 862 | sE_L = get_secondary_energy_from_E_P_E_isoAng ( rand_for_sE , pE_P_E_isoAng_EL ); |
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| 863 | sE_H = get_secondary_energy_from_E_P_E_isoAng ( rand_for_sE , pE_P_E_isoAng_EH ); |
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| 864 | |
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| 865 | sE = get_linear_interpolated ( pE , std::pair < G4double , G4double > ( energyLH.first , sE_L ) , std::pair < G4double , G4double > ( energyLH.second , sE_H ) ); |
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| 866 | |
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| 867 | |
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| 868 | E_isoAng E_isoAng_L = create_E_isoAng_from_energy ( sE , &(pE_P_E_isoAng_EL->vE_isoAngle) ); |
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| 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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