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 | // $Id: G4eIonisationCrossSectionHandler.cc,v 1.11 2006/06/29 19:42:00 gunter Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-02 $ |
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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: G4eIonisationCrossSectionHandler |
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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 Sept 2001 |
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39 | // |
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40 | // Modifications: |
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41 | // 10 Oct 2001 M.G. Pia Revision to improve code quality and consistency with design |
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42 | // 19 Jul 2002 VI Create composite data set for material |
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43 | // 21 Jan 2003 V.Ivanchenko Cut per region |
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44 | // |
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45 | // ------------------------------------------------------------------- |
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46 | |
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47 | #include "G4eIonisationCrossSectionHandler.hh" |
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48 | #include "G4VEnergySpectrum.hh" |
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49 | #include "G4DataVector.hh" |
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50 | #include "G4CompositeEMDataSet.hh" |
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51 | #include "G4VDataSetAlgorithm.hh" |
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52 | #include "G4LinLogLogInterpolation.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 | |
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60 | G4eIonisationCrossSectionHandler::G4eIonisationCrossSectionHandler( |
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61 | const G4VEnergySpectrum* spec, G4VDataSetAlgorithm* alg, |
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62 | G4double emin, G4double emax, G4int nbin) |
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63 | : G4VCrossSectionHandler(), |
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64 | theParam(spec) |
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65 | { |
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66 | G4VCrossSectionHandler::Initialise(alg, emin, emax, nbin); |
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67 | interp = new G4LinLogLogInterpolation(); |
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68 | } |
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69 | |
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70 | |
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71 | G4eIonisationCrossSectionHandler::~G4eIonisationCrossSectionHandler() |
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72 | { |
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73 | delete interp; |
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74 | } |
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75 | |
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76 | |
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77 | std::vector<G4VEMDataSet*>* G4eIonisationCrossSectionHandler::BuildCrossSectionsForMaterials( |
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78 | const G4DataVector& energyVector, |
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79 | const G4DataVector* energyCuts) |
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80 | { |
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81 | G4int verbose = 0; |
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82 | std::vector<G4VEMDataSet*>* set = new std::vector<G4VEMDataSet*>; |
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83 | |
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84 | G4DataVector* energies; |
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85 | G4DataVector* cs; |
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86 | G4int nOfBins = energyVector.size(); |
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87 | |
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88 | const G4ProductionCutsTable* theCoupleTable= |
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89 | G4ProductionCutsTable::GetProductionCutsTable(); |
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90 | size_t numOfCouples = theCoupleTable->GetTableSize(); |
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91 | |
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92 | for (size_t m=0; m<numOfCouples; m++) { |
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93 | |
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94 | const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(m); |
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95 | const G4Material* material= couple->GetMaterial(); |
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96 | const G4ElementVector* elementVector = material->GetElementVector(); |
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97 | const G4double* nAtomsPerVolume = material->GetAtomicNumDensityVector(); |
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98 | G4int nElements = material->GetNumberOfElements(); |
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99 | |
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100 | if(verbose > 0) { |
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101 | G4cout << "eIonisation CS for " << m << "th material " |
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102 | << material->GetName() |
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103 | << " eEl= " << nElements << G4endl; |
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104 | } |
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105 | |
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106 | G4double tcut = (*energyCuts)[m]; |
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107 | |
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108 | G4VDataSetAlgorithm* algo = interp->Clone(); |
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109 | G4VEMDataSet* setForMat = new G4CompositeEMDataSet(algo,1.,1.); |
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110 | |
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111 | for (G4int i=0; i<nElements; i++) { |
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112 | |
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113 | G4int Z = (G4int) (*elementVector)[i]->GetZ(); |
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114 | G4int nShells = NumberOfComponents(Z); |
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115 | energies = new G4DataVector; |
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116 | cs = new G4DataVector; |
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117 | G4double density = nAtomsPerVolume[i]; |
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118 | |
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119 | for (G4int bin=0; bin<nOfBins; bin++) { |
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120 | |
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121 | G4double e = energyVector[bin]; |
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122 | energies->push_back(e); |
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123 | G4double value = 0.0; |
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124 | |
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125 | if(e > tcut) { |
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126 | for (G4int n=0; n<nShells; n++) { |
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127 | G4double cross = FindValue(Z, e, n); |
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128 | G4double p = theParam->Probability(Z, tcut, e, e, n); |
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129 | value += cross * p * density; |
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130 | |
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131 | if(verbose>0 && m == 0 && e>=1. && e<=0.) { |
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132 | G4cout << "G4eIonCrossSH: e(MeV)= " << e/MeV |
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133 | << " n= " << n |
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134 | << " cross= " << cross |
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135 | << " p= " << p |
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136 | << " value= " << value |
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137 | << " tcut(MeV)= " << tcut/MeV |
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138 | << " rho= " << density |
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139 | << " Z= " << Z |
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140 | << G4endl; |
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141 | } |
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142 | |
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143 | } |
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144 | } |
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145 | cs->push_back(value); |
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146 | } |
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147 | G4VDataSetAlgorithm* algo = interp->Clone(); |
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148 | G4VEMDataSet* elSet = new G4EMDataSet(i,energies,cs,algo,1.,1.); |
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149 | setForMat->AddComponent(elSet); |
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150 | } |
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151 | set->push_back(setForMat); |
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152 | } |
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153 | |
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154 | return set; |
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155 | } |
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156 | |
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157 | |
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