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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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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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 | // GEANT4 Class file |
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27 | // |
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28 | // |
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29 | // File name: G4PenelopeCrossSectionHandler |
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30 | // |
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31 | // Author: Luciano Pandola |
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32 | // |
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33 | // Creation date: 04 Jul 2003 |
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34 | // |
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35 | // ------------------------------------------------------------------- |
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36 | #include "G4PenelopeCrossSectionHandler.hh" |
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37 | #include "G4PenelopeIonisation.hh" |
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38 | #include "G4DataVector.hh" |
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39 | #include "G4CompositeEMDataSet.hh" |
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40 | #include "G4VDataSetAlgorithm.hh" |
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41 | #include "G4LinLogLogInterpolation.hh" |
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42 | #include "G4SemiLogInterpolation.hh" |
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43 | #include "G4VEMDataSet.hh" |
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44 | #include "G4EMDataSet.hh" |
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45 | #include "G4Material.hh" |
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46 | #include "G4ProductionCutsTable.hh" |
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47 | #include "G4ParticleDefinition.hh" |
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48 | |
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49 | G4PenelopeCrossSectionHandler::G4PenelopeCrossSectionHandler(G4PenelopeIonisation* theProcess, |
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50 | const G4ParticleDefinition& aParticleType, |
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51 | G4VDataSetAlgorithm* alg, |
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52 | G4double emin, |
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53 | G4double emax, |
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54 | G4int nbin) |
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55 | : G4VCrossSectionHandler(), |
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56 | process(theProcess), |
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57 | particle(aParticleType) |
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58 | { |
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59 | G4VCrossSectionHandler::Initialise(alg, emin, emax, nbin); |
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60 | interp = new G4LinLogLogInterpolation(); |
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61 | } |
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62 | |
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63 | |
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64 | G4PenelopeCrossSectionHandler::~G4PenelopeCrossSectionHandler() |
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65 | { |
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66 | delete interp; |
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67 | } |
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68 | |
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69 | |
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70 | std::vector<G4VEMDataSet*>* G4PenelopeCrossSectionHandler::BuildCrossSectionsForMaterials( |
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71 | const G4DataVector& energyVector, |
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72 | const G4DataVector* energyCuts) |
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73 | { |
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74 | G4int verbose = 0; |
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75 | std::vector<G4VEMDataSet*>* set = new std::vector<G4VEMDataSet*>; |
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76 | |
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77 | G4DataVector* energies; |
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78 | G4DataVector* cs; |
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79 | G4int nOfBins = energyVector.size(); |
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80 | |
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81 | |
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82 | const G4ProductionCutsTable* theCoupleTable= |
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83 | G4ProductionCutsTable::GetProductionCutsTable(); |
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84 | size_t numOfCouples = theCoupleTable->GetTableSize(); |
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85 | |
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86 | for (size_t m=0; m<numOfCouples; m++) { |
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87 | |
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88 | const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(m); |
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89 | const G4Material* material= couple->GetMaterial(); |
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90 | const G4ElementVector* elementVector = material->GetElementVector(); |
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91 | const G4double* nAtomsPerVolume = material->GetAtomicNumDensityVector(); |
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92 | G4double electronVolumeDensity = |
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93 | material->GetTotNbOfElectPerVolume(); //electron density |
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94 | G4int nElements = material->GetNumberOfElements(); |
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95 | |
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96 | if(verbose > 0) { |
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97 | G4cout << "Penelope CS for " << m << "th material " |
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98 | << material->GetName() |
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99 | << " eEl= " << nElements << G4endl; |
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100 | } |
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101 | |
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102 | G4double tcut = (*energyCuts)[m]; |
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103 | |
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104 | G4VDataSetAlgorithm* algo = interp->Clone(); |
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105 | G4VEMDataSet* setForMat = new G4CompositeEMDataSet(algo,1.,1.); |
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106 | |
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107 | for (G4int i=0; i<nElements; i++) { |
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108 | |
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109 | G4int Z = (G4int) (*elementVector)[i]->GetZ(); |
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110 | energies = new G4DataVector; |
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111 | cs = new G4DataVector; |
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112 | G4double density = nAtomsPerVolume[i]; |
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113 | |
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114 | for (G4int bin=0; bin<nOfBins; bin++) { |
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115 | |
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116 | G4double e = energyVector[bin]; |
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117 | energies->push_back(e); |
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118 | G4double value = 0.0; |
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119 | |
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120 | if(e > tcut) { |
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121 | G4double cross = FindValue(Z, e); |
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122 | G4double p = process->CalculateCrossSectionsRatio(e,tcut,Z,electronVolumeDensity, |
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123 | particle); |
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124 | value += cross * p * density; |
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125 | |
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126 | if(verbose>0 && m == 0 && e>=1. && e<=0.) { |
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127 | G4cout << "G4PenIonCrossSH: e(MeV)= " << e/MeV |
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128 | << " cross= " << cross |
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129 | << " p= " << p |
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130 | << " value= " << value |
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131 | << " tcut(MeV)= " << tcut/MeV |
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132 | << " rho= " << density |
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133 | << " Z= " << Z |
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134 | << G4endl; |
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135 | } |
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136 | |
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137 | } |
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138 | cs->push_back(value); |
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139 | } |
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140 | |
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141 | G4VDataSetAlgorithm* algo = interp->Clone(); |
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142 | G4VEMDataSet* elSet = new G4EMDataSet(i,energies,cs,algo,1.,1.); |
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143 | setForMat->AddComponent(elSet); |
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144 | } |
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145 | set->push_back(setForMat); |
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146 | } |
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147 | return set; |
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148 | } |
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149 | |
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150 | |
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