[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 (SCCS/SLAC) |
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| 28 | // |
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| 29 | // Class Description |
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| 30 | // Cross Sections for a high precision (based on evaluated data |
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| 31 | // libraries) description of themal neutron scattering below 4 eV; |
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| 32 | // Based on Thermal neutron scattering files |
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| 33 | // from the evaluated nuclear data files ENDF/B-VI, Release2 |
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| 34 | // To be used in your physics list in case you need this physics. |
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| 35 | // In this case you want to register an object of this class with |
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| 36 | // the corresponding process. |
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| 37 | // Class Description - End |
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| 38 | |
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| 39 | // 15-Nov-06 First implementation is done by T. Koi (SLAC/SCCS) |
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| 40 | // 070625 implement clearCurrentXSData to fix memory leaking by T. Koi |
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| 41 | |
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| 42 | #include "G4NeutronHPThermalScatteringData.hh" |
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| 43 | #include "G4Neutron.hh" |
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| 44 | #include "G4ElementTable.hh" |
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| 45 | //#include "G4NeutronHPData.hh" |
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| 46 | |
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| 47 | |
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| 48 | |
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| 49 | G4NeutronHPThermalScatteringData::G4NeutronHPThermalScatteringData() |
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| 50 | { |
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| 51 | // Upper limit of neutron energy |
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| 52 | emax = 4*eV; |
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| 53 | |
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| 54 | indexOfThermalElement.clear(); |
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| 55 | |
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| 56 | names = new G4NeutronHPThermalScatteringNames(); |
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| 57 | |
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| 58 | BuildPhysicsTable( *G4Neutron::Neutron() ); |
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| 59 | } |
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| 60 | |
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| 61 | |
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| 62 | |
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| 63 | G4NeutronHPThermalScatteringData::~G4NeutronHPThermalScatteringData() |
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| 64 | { |
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| 65 | |
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| 66 | clearCurrentXSData(); |
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| 67 | |
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| 68 | delete names; |
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| 69 | } |
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| 70 | |
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| 71 | |
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| 72 | void G4NeutronHPThermalScatteringData::clearCurrentXSData() |
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| 73 | { |
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| 74 | std::map< G4int , std::map< G4double , G4NeutronHPVector* >* >::iterator it; |
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| 75 | std::map< G4double , G4NeutronHPVector* >::iterator itt; |
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| 76 | |
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| 77 | for ( it = coherent.begin() ; it != coherent.end() ; it++ ) |
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| 78 | { |
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| 79 | if ( it->second != NULL ) |
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| 80 | { |
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| 81 | for ( itt = it->second->begin() ; itt != it->second->end() ; itt++ ) |
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| 82 | { |
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| 83 | delete itt->second; |
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| 84 | } |
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| 85 | } |
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| 86 | delete it->second; |
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| 87 | } |
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| 88 | |
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| 89 | for ( it = incoherent.begin() ; it != incoherent.end() ; it++ ) |
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| 90 | { |
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| 91 | if ( it->second != NULL ) |
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| 92 | { |
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| 93 | for ( itt = it->second->begin() ; itt != it->second->end() ; itt++ ) |
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| 94 | { |
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| 95 | delete itt->second; |
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| 96 | } |
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| 97 | } |
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| 98 | delete it->second; |
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| 99 | } |
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| 100 | |
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| 101 | for ( it = inelastic.begin() ; it != inelastic.end() ; it++ ) |
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| 102 | { |
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| 103 | if ( it->second != NULL ) |
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| 104 | { |
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| 105 | for ( itt = it->second->begin() ; itt != it->second->end() ; itt++ ) |
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| 106 | { |
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| 107 | delete itt->second; |
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| 108 | } |
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| 109 | } |
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| 110 | delete it->second; |
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| 111 | } |
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| 112 | |
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| 113 | coherent.clear(); |
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| 114 | incoherent.clear(); |
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| 115 | inelastic.clear(); |
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| 116 | |
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| 117 | } |
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| 118 | |
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| 119 | |
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| 120 | |
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| 121 | G4bool G4NeutronHPThermalScatteringData::IsApplicable( const G4DynamicParticle* aP , const G4Element* anEle ) |
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| 122 | { |
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| 123 | G4bool result = false; |
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| 124 | |
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| 125 | G4double eKin = aP->GetKineticEnergy(); |
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| 126 | // Check energy |
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| 127 | if ( eKin < emax ) |
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| 128 | { |
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| 129 | // Check Particle Species |
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| 130 | if ( aP->GetDefinition() == G4Neutron::Neutron() ) |
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| 131 | { |
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| 132 | // anEle is one of Thermal elements |
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| 133 | G4int ie = (G4int) anEle->GetIndex(); |
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| 134 | std::vector < G4int >::iterator it; |
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| 135 | for ( it = indexOfThermalElement.begin() ; it != indexOfThermalElement.end() ; it++ ) |
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| 136 | { |
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| 137 | if ( ie == *it ) return true; |
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| 138 | } |
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| 139 | } |
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| 140 | } |
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| 141 | |
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| 142 | /* |
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| 143 | if ( names->IsThisThermalElement ( anEle->GetName() ) ) |
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| 144 | { |
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| 145 | // Check energy and projectile species |
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| 146 | G4double eKin = aP->GetKineticEnergy(); |
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| 147 | if ( eKin < emax && aP->GetDefinition() == G4Neutron::Neutron() ) result = true; |
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| 148 | } |
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| 149 | */ |
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| 150 | return result; |
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| 151 | } |
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| 152 | |
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| 153 | |
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| 154 | void G4NeutronHPThermalScatteringData::BuildPhysicsTable(const G4ParticleDefinition& aP) |
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| 155 | { |
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| 156 | |
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| 157 | if ( &aP != G4Neutron::Neutron() ) |
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| 158 | throw G4HadronicException(__FILE__, __LINE__, "Attempt to use NeutronHP data for particles other than neutrons!!!"); |
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| 159 | |
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| 160 | indexOfThermalElement.clear(); |
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| 161 | |
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| 162 | clearCurrentXSData(); |
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| 163 | |
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| 164 | static const G4ElementTable* theElementTable = G4Element::GetElementTable(); |
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| 165 | size_t numberOfElements = G4Element::GetNumberOfElements(); |
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| 166 | size_t numberOfThermalElements = 0; |
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| 167 | for ( size_t i = 0 ; i < numberOfElements ; i++ ) |
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| 168 | { |
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| 169 | if ( names->IsThisThermalElement ( (*theElementTable)[i]->GetName() ) ) |
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| 170 | { |
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| 171 | indexOfThermalElement.push_back( i ); |
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| 172 | numberOfThermalElements++; |
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| 173 | } |
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| 174 | } |
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| 175 | |
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| 176 | // Read Cross Section Data files |
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| 177 | |
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| 178 | G4String dirName; |
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| 179 | if ( !getenv( "G4NEUTRONHPDATA" ) ) |
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| 180 | throw G4HadronicException(__FILE__, __LINE__, "Please setenv G4NEUTRONHPDATA to point to the neutron cross-section files."); |
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| 181 | G4String baseName = getenv( "G4NEUTRONHPDATA" ); |
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| 182 | |
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| 183 | dirName = baseName + "/ThermalScattering"; |
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| 184 | |
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| 185 | G4String ndl_filename; |
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| 186 | G4String name; |
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| 187 | |
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| 188 | for ( size_t i = 0 ; i < numberOfThermalElements ; i++ ) |
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| 189 | { |
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| 190 | ndl_filename = names->GetTS_NDL_Name( (*theElementTable)[ indexOfThermalElement[ i ] ]->GetName() ); |
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| 191 | |
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| 192 | // Coherent |
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| 193 | name = dirName + "/Coherent/CrossSection/" + ndl_filename; |
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| 194 | std::map< G4double , G4NeutronHPVector* >* coh_amapTemp_EnergyCross = readData( name ); |
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| 195 | coherent.insert ( std::pair < G4int , std::map< G4double , G4NeutronHPVector* >* > ( indexOfThermalElement[ i ] , coh_amapTemp_EnergyCross ) ); |
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| 196 | |
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| 197 | // Incoherent |
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| 198 | name = dirName + "/Incoherent/CrossSection/" + ndl_filename; |
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| 199 | std::map< G4double , G4NeutronHPVector* >* incoh_amapTemp_EnergyCross = readData( name ); |
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| 200 | incoherent.insert ( std::pair < G4int , std::map< G4double , G4NeutronHPVector* >* > ( indexOfThermalElement[ i ] , incoh_amapTemp_EnergyCross ) ); |
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| 201 | |
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| 202 | // Inelastic |
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| 203 | name = dirName + "/Inelastic/CrossSection/" + ndl_filename; |
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| 204 | std::map< G4double , G4NeutronHPVector* >* inela_amapTemp_EnergyCross = readData( name ); |
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| 205 | inelastic.insert ( std::pair < G4int , std::map< G4double , G4NeutronHPVector* >* > ( indexOfThermalElement[ i ] , inela_amapTemp_EnergyCross ) ); |
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| 206 | } |
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| 207 | |
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| 208 | } |
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| 209 | |
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| 210 | |
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| 211 | |
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| 212 | std::map< G4double , G4NeutronHPVector* >* G4NeutronHPThermalScatteringData::readData ( G4String name ) |
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| 213 | { |
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| 214 | |
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| 215 | std::map< G4double , G4NeutronHPVector* >* aData = new std::map< G4double , G4NeutronHPVector* >; |
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| 216 | |
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| 217 | std::ifstream theChannel( name.c_str() ); |
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| 218 | |
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| 219 | //G4cout << "G4NeutronHPThermalScatteringData " << name << G4endl; |
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| 220 | |
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| 221 | G4int dummy; |
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| 222 | while ( theChannel >> dummy ) // MF |
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| 223 | { |
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| 224 | theChannel >> dummy; // MT |
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| 225 | G4double temp; |
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| 226 | theChannel >> temp; |
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| 227 | G4NeutronHPVector* anEnergyCross = new G4NeutronHPVector; |
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| 228 | G4int nData; |
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| 229 | theChannel >> nData; |
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| 230 | anEnergyCross->Init ( theChannel , nData , eV , barn ); |
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| 231 | aData->insert ( std::pair < G4double , G4NeutronHPVector* > ( temp , anEnergyCross ) ); |
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| 232 | } |
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| 233 | theChannel.close(); |
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| 234 | |
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| 235 | return aData; |
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| 236 | |
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| 237 | } |
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| 238 | |
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| 239 | |
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| 240 | |
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| 241 | void G4NeutronHPThermalScatteringData::DumpPhysicsTable( const G4ParticleDefinition& aP ) |
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| 242 | { |
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| 243 | if( &aP != G4Neutron::Neutron() ) |
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| 244 | throw G4HadronicException(__FILE__, __LINE__, "Attempt to use NeutronHP data for particles other than neutrons!!!"); |
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| 245 | // G4cout << "G4NeutronHPThermalScatteringData::DumpPhysicsTable still to be implemented"<<G4endl; |
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| 246 | } |
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| 247 | |
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| 248 | //#include "G4Nucleus.hh" |
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| 249 | //#include "G4NucleiPropertiesTable.hh" |
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| 250 | //#include "G4Neutron.hh" |
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| 251 | //#include "G4Electron.hh" |
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| 252 | |
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| 253 | |
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| 254 | |
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| 255 | G4double G4NeutronHPThermalScatteringData::GetCrossSection( const G4DynamicParticle* aP , const G4Element*anE , G4double aT ) |
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| 256 | { |
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| 257 | G4double result = 0; |
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| 258 | |
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| 259 | G4int iele = anE->GetIndex(); |
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| 260 | |
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| 261 | G4double Xcoh = GetX ( aP , aT , coherent.find(iele)->second ); |
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| 262 | G4double Xincoh = GetX ( aP , aT , incoherent.find(iele)->second ); |
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| 263 | G4double Xinela = GetX ( aP , aT , inelastic.find(iele)->second ); |
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| 264 | |
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| 265 | result = Xcoh + Xincoh + Xinela; |
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| 266 | |
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| 267 | //G4cout << "G4NeutronHPThermalScatteringData::GetCrossSection Tot= " << result/barn << " Coherent= " << Xcoh/barn << " Incoherent= " << Xincoh/barn << " Inelastic= " << Xinela/barn << G4endl; |
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| 268 | |
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| 269 | return result; |
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| 270 | } |
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| 271 | |
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| 272 | |
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| 273 | |
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| 274 | G4double G4NeutronHPThermalScatteringData::GetInelasticCrossSection( const G4DynamicParticle* aP , const G4Element*anE , G4double aT ) |
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| 275 | { |
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| 276 | G4double result = 0; |
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| 277 | G4int iele = anE->GetIndex(); |
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| 278 | result = GetX ( aP , aT , inelastic.find(iele)->second ); |
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| 279 | return result; |
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| 280 | } |
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| 281 | |
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| 282 | |
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| 283 | |
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| 284 | G4double G4NeutronHPThermalScatteringData::GetCoherentCrossSection( const G4DynamicParticle* aP , const G4Element*anE , G4double aT ) |
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| 285 | { |
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| 286 | G4double result = 0; |
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| 287 | G4int iele = anE->GetIndex(); |
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| 288 | result = GetX ( aP , aT , coherent.find(iele)->second ); |
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| 289 | return result; |
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| 290 | } |
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| 291 | |
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| 292 | |
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| 293 | |
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| 294 | G4double G4NeutronHPThermalScatteringData::GetIncoherentCrossSection( const G4DynamicParticle* aP , const G4Element*anE , G4double aT ) |
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| 295 | { |
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| 296 | G4double result = 0; |
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| 297 | G4int iele = anE->GetIndex(); |
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| 298 | result = GetX ( aP , aT , incoherent.find(iele)->second ); |
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| 299 | return result; |
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| 300 | } |
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| 301 | |
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| 302 | |
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| 303 | |
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| 304 | |
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| 305 | G4double G4NeutronHPThermalScatteringData::GetX ( const G4DynamicParticle* aP, G4double aT , std::map < G4double , G4NeutronHPVector* >* amapTemp_EnergyCross ) |
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| 306 | { |
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| 307 | G4double result = 0; |
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| 308 | if ( amapTemp_EnergyCross->size() == 0 ) return result; |
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| 309 | |
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| 310 | std::map< G4double , G4NeutronHPVector* >::iterator it; |
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| 311 | for ( it = amapTemp_EnergyCross->begin() ; it != amapTemp_EnergyCross->end() ; it++ ) |
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| 312 | { |
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| 313 | if ( aT < it->first ) break; |
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| 314 | } |
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| 315 | if ( it == amapTemp_EnergyCross->begin() ) it++; // lower than first |
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| 316 | else if ( it == amapTemp_EnergyCross->end() ) it--; // upper than last |
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| 317 | |
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| 318 | G4double eKinetic = aP->GetKineticEnergy(); |
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| 319 | |
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| 320 | G4double TH = it->first; |
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| 321 | G4double XH = it->second->GetXsec ( eKinetic ); |
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| 322 | |
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| 323 | //G4cout << "G4NeutronHPThermalScatteringData::GetX TH " << TH << " E " << eKinetic << " XH " << XH << G4endl; |
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| 324 | |
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| 325 | it--; |
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| 326 | G4double TL = it->first; |
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| 327 | G4double XL = it->second->GetXsec ( eKinetic ); |
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| 328 | |
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| 329 | //G4cout << "G4NeutronHPThermalScatteringData::GetX TL " << TL << " E " << eKinetic << " XL " << XL << G4endl; |
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| 330 | |
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| 331 | if ( TH == TL ) |
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| 332 | throw G4HadronicException(__FILE__, __LINE__, "Thermal Scattering Data Error!"); |
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| 333 | |
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| 334 | G4double T = aT; |
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| 335 | G4double X = ( XH - XL ) / ( TH - TL ) * ( T - TL ) + XL; |
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| 336 | result = X; |
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| 337 | |
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| 338 | return result; |
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| 339 | } |
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