[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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[1192] | 26 | // $Id: G4BremsstrahlungCrossSectionHandler.cc,v 1.12 2009/09/27 10:47:42 sincerti Exp $ |
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[1196] | 27 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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[819] | 28 | // |
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| 29 | // ------------------------------------------------------------------- |
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| 30 | // |
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| 31 | // GEANT4 Class file |
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| 32 | // |
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| 33 | // |
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| 34 | // File name: G4BremsstrahlungCrossSectionHandler |
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| 35 | // |
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| 36 | // Author: V.Ivanchenko (Vladimir.Ivanchenko@cern.ch) |
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| 37 | // |
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| 38 | // Creation date: 25 September 2001 |
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| 39 | // |
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[1192] | 40 | // Modifications: |
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| 41 | // |
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[819] | 42 | // 10.10.2001 MGP Revision to improve code quality and consistency with design |
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| 43 | // 21.01.2003 VI cut per region |
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[1055] | 44 | // 03.03.2009 LP Added public method to make a easier migration of |
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| 45 | // G4LowEnergyBremsstrahlung to G4LivermoreBremsstrahlungModel |
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[819] | 46 | // |
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[1192] | 47 | // 15 Jul 2009 Nicolas A. Karakatsanis |
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| 48 | // |
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| 49 | // - BuildCrossSectionForMaterials method was revised in order to calculate the |
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| 50 | // logarithmic values of the loaded data. |
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| 51 | // It retrieves the data values from the G4EMLOW data files but, then, calculates the |
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| 52 | // respective log values and loads them to seperate data structures. |
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| 53 | // The EM data sets, initialized this way, contain both non-log and log values. |
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| 54 | // These initialized data sets can enhance the computing performance of data interpolation |
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| 55 | // operations |
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| 56 | // |
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| 57 | // |
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| 58 | // |
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| 59 | // |
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[819] | 60 | // ------------------------------------------------------------------- |
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| 61 | |
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| 62 | #include "G4BremsstrahlungCrossSectionHandler.hh" |
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| 63 | #include "G4eBremsstrahlungSpectrum.hh" |
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| 64 | #include "G4DataVector.hh" |
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| 65 | #include "G4CompositeEMDataSet.hh" |
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| 66 | #include "G4VDataSetAlgorithm.hh" |
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| 67 | #include "G4SemiLogInterpolation.hh" |
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| 68 | #include "G4VEMDataSet.hh" |
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| 69 | #include "G4EMDataSet.hh" |
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| 70 | #include "G4Material.hh" |
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| 71 | #include "G4ProductionCutsTable.hh" |
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| 72 | |
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[1055] | 73 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 74 | |
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[819] | 75 | G4BremsstrahlungCrossSectionHandler::G4BremsstrahlungCrossSectionHandler(const G4VEnergySpectrum* spec, |
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| 76 | G4VDataSetAlgorithm* ) |
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| 77 | : theBR(spec) |
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| 78 | { |
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| 79 | interp = new G4SemiLogInterpolation(); |
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| 80 | } |
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| 81 | |
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[1055] | 82 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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[819] | 83 | |
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| 84 | G4BremsstrahlungCrossSectionHandler::~G4BremsstrahlungCrossSectionHandler() |
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| 85 | { |
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| 86 | delete interp; |
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| 87 | } |
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| 88 | |
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[1055] | 89 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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[819] | 90 | |
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| 91 | std::vector<G4VEMDataSet*>* |
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| 92 | G4BremsstrahlungCrossSectionHandler::BuildCrossSectionsForMaterials(const G4DataVector& energyVector, |
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| 93 | const G4DataVector* energyCuts) |
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| 94 | { |
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| 95 | std::vector<G4VEMDataSet*>* set = new std::vector<G4VEMDataSet*>; |
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| 96 | |
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| 97 | G4DataVector* energies; |
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| 98 | G4DataVector* cs; |
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[1192] | 99 | |
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| 100 | G4DataVector* log_energies; |
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| 101 | G4DataVector* log_cs; |
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| 102 | |
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[819] | 103 | G4int nOfBins = energyVector.size(); |
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| 104 | |
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| 105 | const G4ProductionCutsTable* theCoupleTable= |
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| 106 | G4ProductionCutsTable::GetProductionCutsTable(); |
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| 107 | size_t numOfCouples = theCoupleTable->GetTableSize(); |
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| 108 | |
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| 109 | for (size_t m=0; m<numOfCouples; m++) { |
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| 110 | |
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| 111 | const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(m); |
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| 112 | const G4Material* material= couple->GetMaterial(); |
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| 113 | const G4ElementVector* elementVector = material->GetElementVector(); |
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| 114 | const G4double* nAtomsPerVolume = material->GetVecNbOfAtomsPerVolume(); |
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| 115 | G4int nElements = material->GetNumberOfElements(); |
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| 116 | |
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| 117 | G4double tcut = (*energyCuts)[m]; |
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| 118 | |
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| 119 | G4VDataSetAlgorithm* algo = interp->Clone(); |
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| 120 | G4VEMDataSet* setForMat = new G4CompositeEMDataSet(algo,1.,1.); |
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| 121 | |
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| 122 | for (G4int i=0; i<nElements; i++) { |
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| 123 | |
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| 124 | G4int Z = (G4int) ((*elementVector)[i]->GetZ()); |
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[1192] | 125 | |
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[819] | 126 | energies = new G4DataVector; |
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| 127 | cs = new G4DataVector; |
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[1192] | 128 | |
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| 129 | log_energies = new G4DataVector; |
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| 130 | log_cs = new G4DataVector; |
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| 131 | |
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[819] | 132 | G4double density = nAtomsPerVolume[i]; |
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| 133 | |
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| 134 | for (G4int bin=0; bin<nOfBins; bin++) { |
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| 135 | |
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| 136 | G4double e = energyVector[bin]; |
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| 137 | energies->push_back(e); |
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[1192] | 138 | if (e==0.) e=1e-300; |
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| 139 | log_energies->push_back(std::log10(e)); |
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[819] | 140 | G4double value = 0.0; |
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| 141 | |
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| 142 | if(e > tcut) { |
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| 143 | G4double elemCs = FindValue(Z, e); |
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| 144 | |
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| 145 | value = theBR->Probability(Z, tcut, e, e); |
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| 146 | |
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| 147 | value *= elemCs*density; |
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| 148 | } |
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| 149 | cs->push_back(value); |
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[1192] | 150 | |
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| 151 | if (value==0.) value=1e-300; |
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| 152 | log_cs->push_back(std::log10(value)); |
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[819] | 153 | } |
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| 154 | G4VDataSetAlgorithm* algol = interp->Clone(); |
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[1192] | 155 | |
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| 156 | //G4VEMDataSet* elSet = new G4EMDataSet(i,energies,cs,algol,1.,1.); |
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| 157 | |
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| 158 | G4VEMDataSet* elSet = new G4EMDataSet(i,energies,cs,log_energies,log_cs,algol,1.,1.); |
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| 159 | |
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[819] | 160 | setForMat->AddComponent(elSet); |
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| 161 | } |
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| 162 | set->push_back(setForMat); |
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| 163 | } |
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| 164 | |
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| 165 | return set; |
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| 166 | } |
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[1055] | 167 | |
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| 168 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 169 | |
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| 170 | G4double G4BremsstrahlungCrossSectionHandler::GetCrossSectionAboveThresholdForElement(G4double energy, |
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| 171 | G4double cutEnergy, |
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| 172 | G4int Z) |
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| 173 | { |
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| 174 | G4double value = 0.; |
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| 175 | if(energy > cutEnergy) |
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| 176 | { |
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| 177 | G4double elemCs = FindValue(Z, energy); |
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| 178 | value = theBR->Probability(Z,cutEnergy, energy, energy); |
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| 179 | value *= elemCs; |
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| 180 | } |
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| 181 | return value; |
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| 182 | } |
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