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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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11 | // * Neither the authors of this software system, nor their employing * |
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13 | // * work make any representation or warranty, express or implied, * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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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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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 | // $Id: G4BremsstrahlungCrossSectionHandler.cc,v 1.10 2009/03/03 11:19:18 pandola Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-03-beta-cand-01 $ |
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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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40 | // Modifications: |
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41 | // 10.10.2001 MGP Revision to improve code quality and consistency with design |
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42 | // 21.01.2003 VI cut per region |
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43 | // 03.03.2009 LP Added public method to make a easier migration of |
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44 | // G4LowEnergyBremsstrahlung to G4LivermoreBremsstrahlungModel |
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45 | // |
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46 | // ------------------------------------------------------------------- |
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47 | |
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48 | #include "G4BremsstrahlungCrossSectionHandler.hh" |
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49 | #include "G4eBremsstrahlungSpectrum.hh" |
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50 | #include "G4DataVector.hh" |
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51 | #include "G4CompositeEMDataSet.hh" |
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52 | #include "G4VDataSetAlgorithm.hh" |
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53 | #include "G4SemiLogInterpolation.hh" |
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54 | #include "G4VEMDataSet.hh" |
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55 | #include "G4EMDataSet.hh" |
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56 | #include "G4Material.hh" |
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57 | #include "G4ProductionCutsTable.hh" |
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58 | |
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59 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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60 | |
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61 | G4BremsstrahlungCrossSectionHandler::G4BremsstrahlungCrossSectionHandler(const G4VEnergySpectrum* spec, |
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62 | G4VDataSetAlgorithm* ) |
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63 | : theBR(spec) |
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64 | { |
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65 | interp = new G4SemiLogInterpolation(); |
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66 | } |
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67 | |
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68 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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69 | |
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70 | G4BremsstrahlungCrossSectionHandler::~G4BremsstrahlungCrossSectionHandler() |
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71 | { |
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72 | delete interp; |
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73 | } |
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74 | |
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75 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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76 | |
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77 | std::vector<G4VEMDataSet*>* |
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78 | G4BremsstrahlungCrossSectionHandler::BuildCrossSectionsForMaterials(const G4DataVector& energyVector, |
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79 | const G4DataVector* energyCuts) |
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80 | { |
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81 | std::vector<G4VEMDataSet*>* set = new std::vector<G4VEMDataSet*>; |
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82 | |
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83 | G4DataVector* energies; |
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84 | G4DataVector* cs; |
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85 | G4int nOfBins = energyVector.size(); |
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86 | |
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87 | const G4ProductionCutsTable* theCoupleTable= |
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88 | G4ProductionCutsTable::GetProductionCutsTable(); |
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89 | size_t numOfCouples = theCoupleTable->GetTableSize(); |
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90 | |
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91 | for (size_t m=0; m<numOfCouples; m++) { |
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92 | |
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93 | const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(m); |
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94 | const G4Material* material= couple->GetMaterial(); |
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95 | const G4ElementVector* elementVector = material->GetElementVector(); |
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96 | const G4double* nAtomsPerVolume = material->GetVecNbOfAtomsPerVolume(); |
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97 | G4int nElements = material->GetNumberOfElements(); |
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98 | |
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99 | G4double tcut = (*energyCuts)[m]; |
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100 | |
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101 | G4VDataSetAlgorithm* algo = interp->Clone(); |
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102 | G4VEMDataSet* setForMat = new G4CompositeEMDataSet(algo,1.,1.); |
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103 | |
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104 | for (G4int i=0; i<nElements; i++) { |
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105 | |
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106 | G4int Z = (G4int) ((*elementVector)[i]->GetZ()); |
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107 | energies = new G4DataVector; |
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108 | cs = new G4DataVector; |
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109 | G4double density = nAtomsPerVolume[i]; |
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110 | |
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111 | for (G4int bin=0; bin<nOfBins; bin++) { |
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112 | |
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113 | G4double e = energyVector[bin]; |
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114 | energies->push_back(e); |
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115 | G4double value = 0.0; |
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116 | |
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117 | if(e > tcut) { |
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118 | G4double elemCs = FindValue(Z, e); |
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119 | |
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120 | value = theBR->Probability(Z, tcut, e, e); |
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121 | |
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122 | value *= elemCs*density; |
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123 | } |
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124 | cs->push_back(value); |
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125 | } |
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126 | G4VDataSetAlgorithm* algol = interp->Clone(); |
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127 | G4VEMDataSet* elSet = new G4EMDataSet(i,energies,cs,algol,1.,1.); |
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128 | setForMat->AddComponent(elSet); |
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129 | } |
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130 | set->push_back(setForMat); |
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131 | } |
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132 | |
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133 | return set; |
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134 | } |
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135 | |
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136 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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137 | |
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138 | G4double G4BremsstrahlungCrossSectionHandler::GetCrossSectionAboveThresholdForElement(G4double energy, |
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139 | G4double cutEnergy, |
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140 | G4int Z) |
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141 | { |
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142 | G4double value = 0.; |
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143 | if(energy > cutEnergy) |
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144 | { |
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145 | G4double elemCs = FindValue(Z, energy); |
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146 | value = theBR->Probability(Z,cutEnergy, energy, energy); |
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147 | value *= elemCs; |
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148 | } |
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149 | return value; |
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150 | } |
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