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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27 | // $Id: G4VCrossSectionHandler.hh,v 1.15 2009/09/25 07:41:34 sincerti Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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29 | // |
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30 | // Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch) |
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31 | // |
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32 | // History: |
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33 | // ----------- |
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34 | // 16 Sep 2001 MGP Created |
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35 | // 26 Sep 2001 V.Ivanchenko Hide copy constructor and assignement operator |
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36 | // 18 Apr 2002 V.Ivanchenko Move member function ValueForMaterial to public |
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37 | // 21 Jan 2003 V.Ivanchenko Cut per region |
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38 | // 15 Jul 2009 N.A.Karakatsanis New methods added for loading logarithmic data |
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39 | // to enhance computing performance of interpolation |
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40 | // |
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41 | // ------------------------------------------------------------------- |
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42 | |
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43 | // Class description: |
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44 | // Low Energy Electromagnetic Physics |
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45 | // Base class for cross section manager for an electromagnetic physics process |
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46 | // Further documentation available from http://www.ge.infn.it/geant4/lowE |
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47 | |
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48 | // ------------------------------------------------------------------- |
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49 | |
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50 | #ifndef G4VCROSSSECTIONHANDLER_HH |
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51 | #define G4VCROSSSECTIONHANDLER_HH 1 |
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52 | |
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53 | #include "globals.hh" |
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54 | #include "G4DataVector.hh" |
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55 | #include <map> |
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56 | #include <vector> |
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57 | #include "G4MaterialCutsCouple.hh" |
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58 | |
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59 | class G4VDataSetAlgorithm; |
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60 | class G4VEMDataSet; |
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61 | class G4Material; |
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62 | class G4Element; |
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63 | |
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64 | class G4VCrossSectionHandler { |
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65 | |
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66 | public: |
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67 | |
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68 | G4VCrossSectionHandler(); |
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69 | |
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70 | G4VCrossSectionHandler(G4VDataSetAlgorithm* interpolation, |
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71 | G4double minE = 250*eV, G4double maxE = 100*GeV, |
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72 | G4int nBins = 200, |
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73 | G4double unitE = MeV, G4double unitData = barn, |
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74 | G4int minZ = 1, G4int maxZ = 99); |
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75 | |
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76 | virtual ~G4VCrossSectionHandler(); |
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77 | |
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78 | void Initialise(G4VDataSetAlgorithm* interpolation = 0, |
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79 | G4double minE = 250*eV, G4double maxE = 100*GeV, |
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80 | G4int numberOfBins = 200, |
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81 | G4double unitE = MeV, G4double unitData = barn, |
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82 | G4int minZ = 1, G4int maxZ = 99); |
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83 | |
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84 | G4int SelectRandomAtom(const G4MaterialCutsCouple* couple, G4double e) const; |
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85 | |
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86 | const G4Element* SelectRandomElement(const G4MaterialCutsCouple* material, |
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87 | G4double e) const; |
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88 | |
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89 | G4int SelectRandomShell(G4int Z, G4double e) const; |
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90 | |
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91 | G4VEMDataSet* BuildMeanFreePathForMaterials(const G4DataVector* energyCuts = 0); |
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92 | |
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93 | G4double FindValue(G4int Z, G4double e) const; |
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94 | |
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95 | G4double FindValue(G4int Z, G4double e, G4int shellIndex) const; |
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96 | |
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97 | G4double ValueForMaterial(const G4Material* material, G4double e) const; |
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98 | |
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99 | void LoadData(const G4String& dataFile); |
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100 | |
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101 | void LoadNonLogData(const G4String& dataFile); |
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102 | |
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103 | void LoadShellData(const G4String& dataFile); |
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104 | |
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105 | void PrintData() const; |
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106 | |
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107 | void Clear(); |
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108 | |
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109 | protected: |
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110 | |
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111 | G4int NumberOfComponents(G4int Z) const; |
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112 | |
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113 | void ActiveElements(); |
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114 | |
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115 | // Factory method |
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116 | virtual std::vector<G4VEMDataSet*>* BuildCrossSectionsForMaterials(const G4DataVector& energyVector, |
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117 | const G4DataVector* energyCuts = 0) = 0; |
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118 | |
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119 | // Factory method |
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120 | virtual G4VDataSetAlgorithm* CreateInterpolation(); |
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121 | |
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122 | const G4VDataSetAlgorithm* GetInterpolation() const { return interpolation; } |
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123 | |
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124 | |
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125 | private: |
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126 | |
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127 | // Hide copy constructor and assignment operator |
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128 | G4VCrossSectionHandler(const G4VCrossSectionHandler&); |
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129 | G4VCrossSectionHandler & operator=(const G4VCrossSectionHandler &right); |
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130 | |
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131 | G4VDataSetAlgorithm* interpolation; |
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132 | |
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133 | G4double eMin; |
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134 | G4double eMax; |
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135 | G4int nBins; |
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136 | |
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137 | G4double unit1; |
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138 | G4double unit2; |
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139 | |
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140 | G4int zMin; |
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141 | G4int zMax; |
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142 | |
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143 | G4DataVector activeZ; |
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144 | |
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145 | std::map<G4int,G4VEMDataSet*,std::less<G4int> > dataMap; |
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146 | |
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147 | std::vector<G4VEMDataSet*>* crossSections; |
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148 | }; |
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149 | |
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150 | #endif |
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151 | |
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152 | |
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153 | |
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154 | |
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