[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 | // |
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[1196] | 27 | // $Id: G4VRangeToEnergyConverter.cc,v 1.15 2009/09/14 07:27:46 kurasige Exp $ |
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[1337] | 28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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[819] | 29 | // |
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| 30 | // |
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| 31 | // -------------------------------------------------------------- |
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| 32 | // GEANT 4 class implementation file/ History: |
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| 33 | // 5 Oct. 2002, H.Kuirashige : Structure created based on object model |
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| 34 | // -------------------------------------------------------------- |
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| 35 | |
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| 36 | #include "G4VRangeToEnergyConverter.hh" |
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| 37 | #include "G4ParticleTable.hh" |
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| 38 | #include "G4Material.hh" |
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[1196] | 39 | #include "G4MaterialTable.hh" |
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[819] | 40 | #include "G4PhysicsLogVector.hh" |
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| 41 | |
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| 42 | #include "G4ios.hh" |
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| 43 | |
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| 44 | // energy range |
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| 45 | G4double G4VRangeToEnergyConverter::LowestEnergy = 0.99e-3*MeV; |
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| 46 | G4double G4VRangeToEnergyConverter::HighestEnergy = 100.0e6*MeV; |
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| 47 | |
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[1196] | 48 | // max energy cut |
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| 49 | G4double G4VRangeToEnergyConverter::MaxEnergyCut = 10.0*GeV; |
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| 50 | |
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[819] | 51 | G4VRangeToEnergyConverter::G4VRangeToEnergyConverter(): |
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[1196] | 52 | theParticle(0), theLossTable(0), NumberOfElements(0), TotBin(300), |
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[819] | 53 | verboseLevel(1) |
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| 54 | { |
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[1196] | 55 | fMaxEnergyCut = 0.; |
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[819] | 56 | } |
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| 57 | |
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[1196] | 58 | G4VRangeToEnergyConverter::G4VRangeToEnergyConverter(const G4VRangeToEnergyConverter& right) : TotBin(right.TotBin) |
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[819] | 59 | { |
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| 60 | *this = right; |
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| 61 | } |
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| 62 | |
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| 63 | G4VRangeToEnergyConverter & G4VRangeToEnergyConverter::operator=(const G4VRangeToEnergyConverter &right) |
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| 64 | { |
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| 65 | if (this == &right) return *this; |
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| 66 | if (theLossTable) { |
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| 67 | theLossTable->clearAndDestroy(); |
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| 68 | delete theLossTable; |
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| 69 | theLossTable=0; |
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| 70 | } |
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| 71 | |
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| 72 | NumberOfElements = right.NumberOfElements; |
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[1196] | 73 | //TotBin = right.TotBin; |
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[819] | 74 | theParticle = right.theParticle; |
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| 75 | verboseLevel = right.verboseLevel; |
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| 76 | |
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| 77 | // create the loss table |
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| 78 | theLossTable = new G4LossTable(); |
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| 79 | theLossTable->reserve(G4Element::GetNumberOfElements()); |
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| 80 | // fill the loss table |
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| 81 | for (size_t j=0; j<size_t(NumberOfElements); j++){ |
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| 82 | G4LossVector* aVector= new |
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[1196] | 83 | G4LossVector(LowestEnergy, MaxEnergyCut, TotBin); |
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[819] | 84 | for (size_t i=0; i<size_t(TotBin); i++) { |
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| 85 | G4double Value = (*((*right.theLossTable)[j]))[i]; |
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| 86 | aVector->PutValue(i,Value); |
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| 87 | } |
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| 88 | theLossTable->insert(aVector); |
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| 89 | } |
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[1196] | 90 | |
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| 91 | // clean up range vector store |
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| 92 | for (size_t idx=0; idx<fRangeVectorStore.size(); idx++){ |
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| 93 | delete fRangeVectorStore.at(idx); |
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| 94 | } |
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| 95 | fRangeVectorStore.clear(); |
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| 96 | |
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| 97 | // copy range vector store |
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| 98 | for (size_t j=0; j<((right.fRangeVectorStore).size()); j++){ |
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| 99 | G4RangeVector* vector = (right.fRangeVectorStore).at(j); |
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| 100 | G4RangeVector* rangeVector = 0; |
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| 101 | if (vector !=0 ) { |
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| 102 | rangeVector = new G4RangeVector(LowestEnergy, MaxEnergyCut, TotBin); |
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| 103 | for (size_t i=0; i<size_t(TotBin); i++) { |
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| 104 | G4double Value = (*vector)[i]; |
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| 105 | rangeVector->PutValue(i,Value); |
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| 106 | } |
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| 107 | } |
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| 108 | fRangeVectorStore.push_back(rangeVector); |
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| 109 | } |
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[819] | 110 | return *this; |
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| 111 | } |
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| 112 | |
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| 113 | |
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| 114 | G4VRangeToEnergyConverter::~G4VRangeToEnergyConverter() |
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| 115 | { |
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[1196] | 116 | Reset(); |
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[819] | 117 | } |
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| 118 | |
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| 119 | G4int G4VRangeToEnergyConverter::operator==(const G4VRangeToEnergyConverter &right) const |
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| 120 | { |
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| 121 | return this == &right; |
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| 122 | } |
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| 123 | |
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| 124 | G4int G4VRangeToEnergyConverter::operator!=(const G4VRangeToEnergyConverter &right) const |
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| 125 | { |
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| 126 | return this != &right; |
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| 127 | } |
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| 128 | |
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| 129 | |
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| 130 | // ********************************************************************** |
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| 131 | // ************************* Convert *********************************** |
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| 132 | // ********************************************************************** |
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| 133 | G4double G4VRangeToEnergyConverter::Convert(G4double rangeCut, |
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| 134 | const G4Material* material) |
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| 135 | { |
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[1196] | 136 | #ifdef G4VERBOSE |
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| 137 | if (GetVerboseLevel()>3) { |
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| 138 | G4cout << "G4VRangeToEnergyConverter::Convert() "; |
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| 139 | G4cout << "Convert for " << material->GetName() |
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| 140 | << " with Range Cut " << rangeCut/mm << "[mm]" << G4endl; |
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| 141 | } |
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| 142 | #endif |
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| 143 | |
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[819] | 144 | G4double theKineticEnergyCuts = 0.; |
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[1196] | 145 | |
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| 146 | if (fMaxEnergyCut != MaxEnergyCut) { |
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| 147 | fMaxEnergyCut = MaxEnergyCut; |
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| 148 | // clear loss table and renge vectors |
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| 149 | Reset(); |
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| 150 | } |
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[819] | 151 | |
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| 152 | // Build the energy loss table |
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| 153 | BuildLossTable(); |
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| 154 | |
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| 155 | // Build range vector for every material, convert cut into energy-cut, |
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| 156 | // fill theKineticEnergyCuts and delete the range vector |
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| 157 | G4double tune = 0.025*mm*g/cm3 ,lowen = 30.*keV ; |
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| 158 | |
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[1196] | 159 | // check density |
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| 160 | G4double density = material->GetDensity() ; |
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| 161 | if(density <= 0.) { |
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| 162 | #ifdef G4VERBOSE |
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| 163 | if (GetVerboseLevel()>0) { |
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| 164 | G4cout << "G4VRangeToEnergyConverter::Convert() "; |
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| 165 | G4cout << material->GetName() << "has zero density " |
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| 166 | << "( " << density << ")" << G4endl; |
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| 167 | } |
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| 168 | #endif |
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| 169 | return 0.; |
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| 170 | } |
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| 171 | |
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| 172 | // initialize RangeVectorStore |
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| 173 | const G4MaterialTable* table = G4Material::GetMaterialTable(); |
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| 174 | G4int ext_size = table->size() - fRangeVectorStore.size(); |
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| 175 | for (int i=0; i<ext_size; i++) fRangeVectorStore.push_back(0); |
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| 176 | |
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| 177 | // Build Range Vector |
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[819] | 178 | G4int idx = material->GetIndex(); |
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[1196] | 179 | G4RangeVector* rangeVector = fRangeVectorStore.at(idx); |
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| 180 | if (rangeVector == 0) { |
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| 181 | rangeVector = new G4RangeVector(LowestEnergy, MaxEnergyCut, TotBin); |
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| 182 | BuildRangeVector(material, rangeVector); |
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| 183 | fRangeVectorStore.at(idx) = rangeVector; |
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| 184 | } |
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[819] | 185 | |
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[1196] | 186 | // Convert Range Cut ro Kinetic Energy Cut |
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| 187 | theKineticEnergyCuts = ConvertCutToKineticEnergy(rangeVector, rangeCut, idx); |
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| 188 | |
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| 189 | if( ((theParticle->GetParticleName()=="e-")||(theParticle->GetParticleName()=="e+")) |
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| 190 | && (theKineticEnergyCuts < lowen) ) { |
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[819] | 191 | // corr. should be switched on smoothly |
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[1196] | 192 | theKineticEnergyCuts /= (1.+(1.-theKineticEnergyCuts/lowen)* |
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| 193 | tune/(rangeCut*density)); |
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[819] | 194 | } |
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[1196] | 195 | |
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| 196 | if(theKineticEnergyCuts < LowestEnergy) { |
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| 197 | theKineticEnergyCuts = LowestEnergy ; |
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| 198 | } else if(theKineticEnergyCuts > MaxEnergyCut) { |
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| 199 | theKineticEnergyCuts = MaxEnergyCut; |
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| 200 | } |
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| 201 | |
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[819] | 202 | return theKineticEnergyCuts; |
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| 203 | } |
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| 204 | |
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| 205 | // ********************************************************************** |
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| 206 | // ************************ SetEnergyRange ***************************** |
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| 207 | // ********************************************************************** |
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| 208 | void G4VRangeToEnergyConverter::SetEnergyRange(G4double lowedge, |
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| 209 | G4double highedge) |
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| 210 | { |
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| 211 | // check LowestEnergy/ HighestEnergy |
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| 212 | if ( (lowedge<0.0)||(highedge<=lowedge) ){ |
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| 213 | G4cerr << "Error in G4VRangeToEnergyConverter::SetEnergyRange"; |
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| 214 | G4cerr << " : illegal energy range" << "(" << lowedge/GeV; |
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| 215 | G4cerr << "," << highedge/GeV << ") [GeV]" << G4endl; |
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| 216 | } else { |
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| 217 | LowestEnergy = lowedge; |
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| 218 | HighestEnergy = highedge; |
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| 219 | } |
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| 220 | } |
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| 221 | |
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| 222 | |
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| 223 | G4double G4VRangeToEnergyConverter::GetLowEdgeEnergy() |
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| 224 | { |
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| 225 | return LowestEnergy; |
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| 226 | } |
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| 227 | |
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| 228 | |
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| 229 | G4double G4VRangeToEnergyConverter::GetHighEdgeEnergy() |
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| 230 | { |
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| 231 | return HighestEnergy; |
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| 232 | } |
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| 233 | |
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| 234 | // ********************************************************************** |
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[1196] | 235 | // ******************* Get/SetMaxEnergyCut ***************************** |
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[819] | 236 | // ********************************************************************** |
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[1196] | 237 | G4double G4VRangeToEnergyConverter::GetMaxEnergyCut() |
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[819] | 238 | { |
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[1196] | 239 | return MaxEnergyCut; |
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| 240 | } |
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[819] | 241 | |
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[1196] | 242 | void G4VRangeToEnergyConverter::SetMaxEnergyCut(G4double value) |
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| 243 | { |
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| 244 | MaxEnergyCut = value; |
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[819] | 245 | } |
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| 246 | |
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| 247 | // ********************************************************************** |
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[1196] | 248 | // ************************ Reset ************************************** |
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[819] | 249 | // ********************************************************************** |
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[1196] | 250 | void G4VRangeToEnergyConverter::Reset() |
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[819] | 251 | { |
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[1196] | 252 | // delete loss table |
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| 253 | if (theLossTable) { |
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| 254 | theLossTable->clearAndDestroy(); |
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| 255 | delete theLossTable; |
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[819] | 256 | } |
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[1196] | 257 | theLossTable=0; |
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| 258 | NumberOfElements=0; |
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| 259 | |
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| 260 | //clear RangeVectorStore |
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| 261 | for (size_t idx=0; idx<fRangeVectorStore.size(); idx++){ |
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| 262 | delete fRangeVectorStore.at(idx); |
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| 263 | } |
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| 264 | fRangeVectorStore.clear(); |
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| 265 | } |
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[819] | 266 | |
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| 267 | |
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| 268 | // ********************************************************************** |
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| 269 | // ************************ BuildLossTable ****************************** |
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| 270 | // ********************************************************************** |
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| 271 | // create Energy Loss Table for charged particles |
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| 272 | // (cross section tabel for neutral ) |
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| 273 | void G4VRangeToEnergyConverter::BuildLossTable() |
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| 274 | { |
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[1196] | 275 | if (size_t(NumberOfElements) == G4Element::GetNumberOfElements()) return; |
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| 276 | |
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| 277 | // clear Loss table and Range vectors |
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| 278 | Reset(); |
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[819] | 279 | |
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[1196] | 280 | // Build dE/dx tables for elements |
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| 281 | NumberOfElements = G4Element::GetNumberOfElements(); |
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| 282 | theLossTable = new G4LossTable(); |
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| 283 | theLossTable->reserve(G4Element::GetNumberOfElements()); |
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[819] | 284 | #ifdef G4VERBOSE |
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[1196] | 285 | if (GetVerboseLevel()>3) { |
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| 286 | G4cout << "G4VRangeToEnergyConverter::BuildLossTable() "; |
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| 287 | G4cout << "Create theLossTable[" << theLossTable << "]"; |
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| 288 | G4cout << " NumberOfElements=" << NumberOfElements <<G4endl; |
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| 289 | } |
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[819] | 290 | #endif |
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[1196] | 291 | |
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| 292 | |
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| 293 | // fill the loss table |
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| 294 | for (size_t j=0; j<size_t(NumberOfElements); j++){ |
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| 295 | G4double Value; |
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| 296 | G4LossVector* aVector= 0; |
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| 297 | aVector= new G4LossVector(LowestEnergy, MaxEnergyCut, TotBin); |
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| 298 | for (size_t i=0; i<size_t(TotBin); i++) { |
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| 299 | Value = ComputeLoss( (*G4Element::GetElementTable())[j]->GetZ(), |
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| 300 | aVector->GetLowEdgeEnergy(i) |
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| 301 | ); |
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| 302 | aVector->PutValue(i,Value); |
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[819] | 303 | } |
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[1196] | 304 | theLossTable->insert(aVector); |
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[819] | 305 | } |
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| 306 | } |
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| 307 | |
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| 308 | // ********************************************************************** |
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| 309 | // ************************ BuildRangeVector **************************** |
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| 310 | // ********************************************************************** |
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[1196] | 311 | void G4VRangeToEnergyConverter::BuildRangeVector(const G4Material* aMaterial, |
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| 312 | G4PhysicsLogVector* rangeVector) |
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[819] | 313 | { |
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| 314 | // create range vector for a material |
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| 315 | const G4ElementVector* elementVector = aMaterial->GetElementVector(); |
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| 316 | const G4double* atomicNumDensityVector = aMaterial->GetAtomicNumDensityVector(); |
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| 317 | G4int NumEl = aMaterial->GetNumberOfElements(); |
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| 318 | |
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| 319 | // calculate parameters of the low energy part first |
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| 320 | size_t i; |
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[1196] | 321 | std::vector<G4double> lossV; |
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| 322 | for ( size_t ib=0; ib<size_t(TotBin); ib++) { |
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| 323 | G4double loss=0.; |
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| 324 | for (i=0; i<size_t(NumEl); i++) { |
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| 325 | G4int IndEl = (*elementVector)[i]->GetIndex(); |
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| 326 | loss += atomicNumDensityVector[i]* |
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| 327 | (*((*theLossTable)[IndEl]))[ib]; |
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| 328 | } |
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| 329 | lossV.push_back(loss); |
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[819] | 330 | } |
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[1196] | 331 | |
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| 332 | // Integrate with Simpson formula with logarithmic binning |
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| 333 | G4double ltt = std::log(MaxEnergyCut/LowestEnergy); |
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| 334 | G4double dltau = ltt/TotBin; |
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[819] | 335 | |
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[1196] | 336 | G4double s0 = 0.; |
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| 337 | G4double Value; |
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| 338 | for ( i=0; i<size_t(TotBin); i++) { |
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| 339 | G4double t = rangeVector->GetLowEdgeEnergy(i); |
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| 340 | G4double s = t/lossV[i]; |
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| 341 | if (i==0) s0 += 0.5*s; |
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| 342 | else s0 += s; |
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| 343 | |
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| 344 | if (i==0) { |
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| 345 | Value = (s0 + 0.5*s)*dltau ; |
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[819] | 346 | } else { |
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[1196] | 347 | Value = (s0 - 0.5*s)*dltau ; |
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[819] | 348 | } |
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[1196] | 349 | rangeVector->PutValue(i,Value); |
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[819] | 350 | } |
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[1196] | 351 | } |
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[819] | 352 | |
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| 353 | // ********************************************************************** |
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| 354 | // ****************** ConvertCutToKineticEnergy ************************* |
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| 355 | // ********************************************************************** |
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| 356 | G4double G4VRangeToEnergyConverter::ConvertCutToKineticEnergy( |
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| 357 | G4RangeVector* rangeVector, |
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| 358 | G4double theCutInLength, |
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| 359 | size_t materialIndex |
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| 360 | ) const |
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| 361 | { |
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| 362 | const G4double epsilon=0.01; |
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| 363 | |
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| 364 | // find max. range and the corresponding energy (rmax,Tmax) |
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| 365 | G4double rmax= -1.e10*mm; |
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| 366 | |
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[1196] | 367 | G4double T1 = LowestEnergy; |
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| 368 | G4double r1 =(*rangeVector)[0] ; |
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| 369 | |
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| 370 | G4double T2 = MaxEnergyCut; |
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| 371 | |
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| 372 | // check theCutInLength < r1 |
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| 373 | if ( theCutInLength <= r1 ) { return T1; } |
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| 374 | |
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| 375 | // scan range vector to find nearest bin |
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| 376 | // ( suppose that r(Ti) > r(Tj) if Ti >Tj ) |
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[819] | 377 | for (size_t ibin=0; ibin<size_t(TotBin); ibin++) { |
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[1196] | 378 | G4double T=rangeVector->GetLowEdgeEnergy(ibin); |
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| 379 | G4double r=(*rangeVector)[ibin]; |
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| 380 | if ( r>rmax ) rmax=r; |
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| 381 | if (r <theCutInLength ) { |
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| 382 | T1 = T; |
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| 383 | r1 = r; |
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| 384 | } else if (r >theCutInLength ) { |
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| 385 | T2 = T; |
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| 386 | break; |
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[819] | 387 | } |
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| 388 | } |
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| 389 | |
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| 390 | // check cut in length is smaller than range max |
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| 391 | if ( theCutInLength >= rmax ) { |
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| 392 | #ifdef G4VERBOSE |
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[961] | 393 | if (GetVerboseLevel()>2) { |
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[819] | 394 | G4cout << "G4VRangeToEnergyConverter::ConvertCutToKineticEnergy "; |
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| 395 | G4cout << " for " << theParticle->GetParticleName() << G4endl; |
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| 396 | G4cout << "The cut in range [" << theCutInLength/mm << " (mm)] "; |
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| 397 | G4cout << " is too big " ; |
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| 398 | G4cout << " for material idx=" << materialIndex <<G4endl; |
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| 399 | } |
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| 400 | #endif |
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[1196] | 401 | return MaxEnergyCut; |
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[819] | 402 | } |
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| 403 | |
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| 404 | // convert range to energy |
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| 405 | G4double T3 = std::sqrt(T1*T2); |
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[1196] | 406 | G4double r3 = rangeVector->Value(T3); |
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[1055] | 407 | while ( std::fabs(1.-r3/theCutInLength)>epsilon ) { |
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[819] | 408 | if ( theCutInLength <= r3 ) { |
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| 409 | T2 = T3; |
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| 410 | } else { |
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| 411 | T1 = T3; |
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| 412 | } |
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| 413 | T3 = std::sqrt(T1*T2); |
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[1196] | 414 | r3 = rangeVector->Value(T3); |
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[819] | 415 | } |
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| 416 | |
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| 417 | return T3; |
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| 418 | } |
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| 419 | |
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