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: G4PenelopeCompton.hh,v 1.11 2008/03/26 15:30:19 pandola Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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28 | // |
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29 | // Author: Luciano Pandola |
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30 | // |
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31 | // History: |
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32 | // ----------- |
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33 | // 05 Dec 2002 L. Pandola 1st implementation |
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34 | // 12 Feb 2003 MG Pia const argument in SelectRandomAtomForCompton |
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35 | // 14 Feb 2003 MG Pia Modified some variables to lowercase initial |
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36 | // 26 Mar 2003 L.Pandola Added fluorescence |
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37 | // 18 Mar 2004 L.Pandola Use of std::map (code review) |
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38 | // 26 Mar 2008 L.Pandola Add boolean flag to control atomic de-excitation |
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39 | // |
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40 | // ------------------------------------------------------------------- |
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41 | |
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42 | // Class description: |
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43 | // Low Energy Electromagnetic Physics, Compton Scattering |
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44 | // Penelope Model |
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45 | // ------------------------------------------------------------------- |
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46 | |
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47 | #ifndef G4PENELOPECOMPTON_HH |
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48 | #define G4PENELOPECOMPTON_HH 1 |
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49 | |
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50 | #include "globals.hh" |
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51 | #include "G4VDiscreteProcess.hh" |
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52 | |
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53 | class G4Track; |
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54 | class G4Step; |
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55 | class G4ParticleDefinition; |
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56 | class G4VParticleChange; |
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57 | class G4VEMDataSet; |
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58 | class G4VRangeTest; |
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59 | class G4Material; |
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60 | |
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61 | class G4PenelopeCompton : public G4VDiscreteProcess { |
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62 | |
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63 | public: |
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64 | |
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65 | G4PenelopeCompton(const G4String& processName ="PenCompton"); |
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66 | |
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67 | ~G4PenelopeCompton(); |
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68 | |
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69 | G4bool IsApplicable(const G4ParticleDefinition& definition); |
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70 | |
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71 | void BuildPhysicsTable(const G4ParticleDefinition& photon); |
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72 | |
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73 | G4VParticleChange* PostStepDoIt(const G4Track& aTrack, const G4Step& aStep); |
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74 | |
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75 | // For testing purpose only |
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76 | G4double DumpMeanFreePath(const G4Track& aTrack, |
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77 | G4double previousStepSize, |
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78 | G4ForceCondition* condition) |
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79 | { return GetMeanFreePath(aTrack, previousStepSize, condition); } |
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80 | |
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81 | void SetUseAtomicDeexcitation(G4bool value){fUseAtomicDeexcitation = value;}; |
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82 | |
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83 | G4bool GetUseAtomicDeexcitation(){return fUseAtomicDeexcitation;}; |
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84 | |
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85 | protected: |
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86 | |
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87 | G4double GetMeanFreePath(const G4Track& aTrack, |
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88 | G4double previousStepSize, |
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89 | G4ForceCondition* condition); |
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90 | |
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91 | private: |
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92 | |
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93 | // Hide copy constructor and assignment operator as private |
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94 | G4PenelopeCompton& operator=(const G4PenelopeCompton& right); |
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95 | G4PenelopeCompton(const G4PenelopeCompton& ); |
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96 | |
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97 | void ReadData(); |
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98 | |
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99 | G4double CrossSection(G4double energy,G4int Z); |
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100 | G4double DifferentialCrossSection (G4double cdt); |
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101 | |
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102 | G4double lowEnergyLimit; // low energy limit applied to the process |
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103 | G4double highEnergyLimit; // high energy limit applied to the process |
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104 | |
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105 | G4VEMDataSet* meanFreePathTable; |
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106 | G4VRangeTest* rangeTest; |
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107 | |
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108 | const G4double intrinsicLowEnergyLimit; // intrinsic validity range |
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109 | const G4double intrinsicHighEnergyLimit; |
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110 | |
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111 | G4double energyForIntegration; //for numerical integration of |
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112 | G4int ZForIntegration;// analytical cross section |
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113 | |
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114 | //Parameters of atomic shells |
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115 | std::map<G4int,G4DataVector*> *ionizationEnergy; |
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116 | std::map<G4int,G4DataVector*> *hartreeFunction; |
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117 | std::map<G4int,G4DataVector*> *occupationNumber; |
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118 | |
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119 | |
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120 | G4int SelectRandomAtomForCompton(const G4Material* material,G4double e) const; |
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121 | |
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122 | const G4int nBins; //for building cross section table |
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123 | |
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124 | std::vector<G4VEMDataSet*> *matCrossSections; //for random choice of atom |
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125 | |
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126 | G4double cutForLowEnergySecondaryPhotons; |
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127 | G4bool fUseAtomicDeexcitation; |
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128 | }; |
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129 | |
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130 | #endif |
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131 | |
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