[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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| 27 | // $Id: G4ComptonScattering52.hh,v 1.4 2007/05/16 14:00:56 vnivanch Exp $ |
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| 28 | // GEANT4 tag $Name: $ |
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| 29 | // |
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| 30 | //------------------ G4ComptonScattering52 physics process ----------------------- |
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| 31 | // by Michel Maire, April 1996 |
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| 32 | // |
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| 33 | // 10-06-96, updated by M.Maire |
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| 34 | // 21-06-96, SetCuts implementation, M.Maire |
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| 35 | // 06-01-97, crossection table + meanfreepath table, M.Maire |
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| 36 | // 17-02-97, New Physics scheme |
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| 37 | // 25-02-97, GetMeanFreePath() now is public function |
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| 38 | // 12-03-97, new physics scheme again |
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| 39 | // 13-08-98, new methods SetBining() PrintInfo() |
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| 40 | // 03-08-01, new methods Store/Retrieve PhysicsTable (mma) |
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| 41 | // 06-08-01, BuildThePhysicsTable() called from constructor (mma) |
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| 42 | // 19-09-01, come back to previous ProcessName "compt" |
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| 43 | // 20-09-01, DoIt: fminimalEnergy = 1*eV (mma) |
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| 44 | // 01-10-01, come back to BuildPhysicsTable(const G4ParticleDefinition&) |
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| 45 | // 13-08-04, suppress icc file; make public ComputeCrossSectionPerAtom() (mma) |
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| 46 | // 09-11-04, Remove Retrieve tables (V.Ivantchenko) |
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| 47 | // 04-05-05, Add 52 to class name (V.Ivanchenko) |
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| 48 | // ----------------------------------------------------------------------------- |
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| 49 | |
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| 50 | // class description |
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| 51 | // |
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| 52 | // inherit from G4VDiscreteProcess |
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| 53 | // |
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| 54 | |
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| 55 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 56 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 57 | |
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| 58 | #ifndef G4ComptonScattering52_h |
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| 59 | #define G4ComptonScattering52_h 1 |
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| 60 | |
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| 61 | #include "G4ios.hh" |
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| 62 | #include "globals.hh" |
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| 63 | #include "Randomize.hh" |
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| 64 | #include "G4VDiscreteProcess.hh" |
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| 65 | #include "G4PhysicsTable.hh" |
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| 66 | #include "G4PhysicsLogVector.hh" |
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| 67 | #include "G4Element.hh" |
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| 68 | #include "G4Gamma.hh" |
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| 69 | #include "G4Electron.hh" |
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| 70 | #include "G4Step.hh" |
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| 71 | |
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| 72 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 73 | |
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| 74 | class G4ComptonScattering52 : public G4VDiscreteProcess |
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| 75 | |
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| 76 | { |
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| 77 | public: // with description |
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| 78 | |
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| 79 | G4ComptonScattering52(const G4String& processName ="compt", |
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| 80 | G4ProcessType type = fElectromagnetic); |
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| 81 | |
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| 82 | ~G4ComptonScattering52(); |
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| 83 | |
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| 84 | G4bool IsApplicable(const G4ParticleDefinition&); |
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| 85 | // true for Gamma only. |
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| 86 | |
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| 87 | void SetPhysicsTableBining(G4double lowE, G4double highE, G4int nBins); |
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| 88 | // Allows to define the binning of the PhysicsTables, |
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| 89 | // before to build them. |
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| 90 | |
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| 91 | void BuildPhysicsTable(const G4ParticleDefinition&); |
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| 92 | // It builds the total CrossSectionPerAtom table, for Gamma, |
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| 93 | // and for every element contained in the elementTable. |
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| 94 | // It builds the MeanFreePath table, for Gamma, |
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| 95 | // and for every material contained in the materialTable. |
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| 96 | |
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| 97 | G4bool StorePhysicsTable(const G4ParticleDefinition* , |
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| 98 | const G4String& directory, G4bool); |
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| 99 | // store CrossSection and MeanFreePath tables into an external file |
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| 100 | // specified by 'directory' (must exist before invokation) |
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| 101 | |
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| 102 | //G4bool RetrievePhysicsTable(const G4ParticleDefinition* , |
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| 103 | // const G4String& directory, G4bool); |
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| 104 | // retrieve CrossSection and MeanFreePath tables from an external file |
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| 105 | // specified by 'directory' |
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| 106 | |
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| 107 | void PrintInfoDefinition(); |
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| 108 | // Print few lines of informations about the process: validity range, |
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| 109 | // origine ..etc.. |
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| 110 | // Invoked by BuildThePhysicsTable(). |
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| 111 | |
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| 112 | G4double GetMeanFreePath(const G4Track& aTrack, |
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| 113 | G4double previousStepSize, |
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| 114 | G4ForceCondition* condition); |
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| 115 | // It returns the MeanFreePath of the process for the current track : |
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| 116 | // (energy, material) |
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| 117 | // The previousStepSize and G4ForceCondition* are not used. |
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| 118 | // This function overloads a virtual function of the base class. |
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| 119 | // It is invoked by the ProcessManager of the Particle. |
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| 120 | |
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| 121 | G4double GetCrossSectionPerAtom(G4DynamicParticle* aDynamicGamma, |
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| 122 | G4Element* anElement); |
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| 123 | // It returns the total CrossSectionPerAtom of the process, |
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| 124 | // for the current DynamicGamma (energy), in anElement. |
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| 125 | |
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| 126 | G4VParticleChange* PostStepDoIt(const G4Track& aTrack, |
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| 127 | const G4Step& aStep); |
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| 128 | // It computes the final state of the process (at end of step), |
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| 129 | // returned as a ParticleChange object. |
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| 130 | // This function overloads a virtual function of the base class. |
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| 131 | // It is invoked by the ProcessManager of the Particle. |
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| 132 | |
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| 133 | virtual |
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| 134 | G4double ComputeCrossSectionPerAtom(G4double GammaEnergy, |
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| 135 | G4double AtomicNumber); |
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| 136 | |
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| 137 | G4double ComputeMeanFreePath(G4double GammaEnergy, |
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| 138 | G4Material* aMaterial); |
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| 139 | private: |
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| 140 | |
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| 141 | // hide assignment operator as private |
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| 142 | G4ComptonScattering52& operator=(const G4ComptonScattering52 &right); |
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| 143 | G4ComptonScattering52(const G4ComptonScattering52& ); |
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| 144 | |
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| 145 | private: |
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| 146 | |
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| 147 | G4PhysicsTable* theCrossSectionTable; // table for crosssection |
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| 148 | G4PhysicsTable* theMeanFreePathTable; // table for mean free path |
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| 149 | |
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| 150 | G4double LowestEnergyLimit; // low energy limit of the tables |
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| 151 | G4double HighestEnergyLimit; // high energy limit of the tables |
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| 152 | G4int NumbBinTable; // number of bins in the tables |
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| 153 | |
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| 154 | protected: |
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| 155 | |
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| 156 | G4double fminimalEnergy; // minimalEnergy of produced particles |
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| 157 | }; |
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| 158 | |
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| 159 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 160 | |
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| 161 | #endif |
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| 162 | |
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