[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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| 26 | // |
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[1192] | 27 | // $Id: G4VCrossSectionHandler.hh,v 1.15 2009/09/25 07:41:34 sincerti Exp $ |
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[1228] | 28 | // GEANT4 tag $Name: geant4-09-03 $ |
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[819] | 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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[1192] | 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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[819] | 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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[1192] | 101 | void LoadNonLogData(const G4String& dataFile); |
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| 102 | |
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[819] | 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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