[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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[961] | 27 | // $Id: G4LowEnergyPolarizedCompton.hh,v 1.10 2008/05/02 13:04:41 flongo Exp $ |
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[1347] | 28 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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[819] | 29 | // |
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| 30 | // ------------------------------------------------------------ |
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| 31 | // GEANT 4 class header file |
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| 32 | // CERN Geneva Switzerland |
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| 33 | // |
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| 34 | |
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| 35 | // --------- G4LowEnergyPolarizedCompton class ----- |
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| 36 | // |
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| 37 | // by G.Depaola & F.Longo (21 may 2001) |
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| 38 | // 24 May 2001 - MGP Modified to inherit from G4VDiscreteProcess |
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| 39 | // 25 May 2001 - MGP Added protections to avoid crashes |
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| 40 | // |
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| 41 | // 17 October 2001 - F.Longo Major revision according to design iteration |
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| 42 | // |
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| 43 | // 21 February 2002 - F.Longo Revisions with A.Zoglauer and G.Depaola |
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| 44 | // - better description of parallelism |
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| 45 | // - system of ref change method improved |
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| 46 | // |
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| 47 | // |
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| 48 | // Class description: |
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| 49 | // Low Energy electromagnetic process, Polarised Compton scattering |
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| 50 | // Further documentation available from http://www.ge.infn.it/geant4/lowE |
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| 51 | |
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| 52 | // ------------------------------------------------------------ |
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| 53 | |
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| 54 | #ifndef G4LOWENERGYPOLARIZEDCOMPTON_H |
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| 55 | #define G4LOWENERGYPOLARIZEDCOMPTON_H 1 |
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| 56 | |
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| 57 | #include "globals.hh" |
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| 58 | #include "G4VDiscreteProcess.hh" |
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| 59 | |
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[961] | 60 | // Doppler Broadening |
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| 61 | |
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| 62 | #include "G4ShellData.hh" |
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| 63 | #include "G4DopplerProfile.hh" |
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| 64 | |
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| 65 | |
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[819] | 66 | class G4Track; |
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| 67 | class G4Step; |
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| 68 | class G4ParticleDefinition; |
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| 69 | class G4VParticleChange; |
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| 70 | class G4VEMDataSet; |
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| 71 | class G4VCrossSectionHandler; |
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| 72 | class G4VRangeTest; |
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| 73 | |
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| 74 | class G4LowEnergyPolarizedCompton : public G4VDiscreteProcess |
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| 75 | { |
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| 76 | public: |
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| 77 | |
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| 78 | G4LowEnergyPolarizedCompton(const G4String& processName = "polarLowEnCompt"); |
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| 79 | |
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| 80 | ~G4LowEnergyPolarizedCompton(); |
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| 81 | |
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| 82 | G4bool IsApplicable(const G4ParticleDefinition& definition); |
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| 83 | |
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| 84 | void BuildPhysicsTable(const G4ParticleDefinition& photon); |
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| 85 | G4VParticleChange* PostStepDoIt(const G4Track& aTrack, const G4Step& aStep); |
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| 86 | |
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| 87 | |
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| 88 | // For testing purpose only |
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| 89 | G4double DumpMeanFreePath(const G4Track& aTrack, |
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| 90 | G4double previousStepSize, |
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| 91 | G4ForceCondition* condition) |
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| 92 | { return GetMeanFreePath(aTrack, previousStepSize, condition); } |
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| 93 | |
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| 94 | |
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| 95 | protected: |
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| 96 | |
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| 97 | G4double GetMeanFreePath(const G4Track& aTrack, |
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| 98 | G4double previousStepSize, |
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| 99 | G4ForceCondition* condition); |
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| 100 | private: |
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| 101 | |
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| 102 | // Hide copy constructor and assignment operator as private |
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| 103 | |
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| 104 | G4LowEnergyPolarizedCompton& operator=(const G4LowEnergyPolarizedCompton& |
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| 105 | right); |
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| 106 | G4LowEnergyPolarizedCompton(const G4LowEnergyPolarizedCompton& ); |
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| 107 | |
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| 108 | G4double lowEnergyLimit; // low energy limit applied to the process |
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| 109 | G4double highEnergyLimit; // high energy limit applied to the process |
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| 110 | |
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| 111 | G4VEMDataSet* meanFreePathTable; |
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| 112 | G4VEMDataSet* scatterFunctionData; |
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| 113 | |
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| 114 | G4VCrossSectionHandler* crossSectionHandler; |
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| 115 | G4VRangeTest* rangeTest; |
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| 116 | |
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| 117 | const G4double intrinsicLowEnergyLimit; // intrinsic validity range |
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| 118 | const G4double intrinsicHighEnergyLimit; |
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| 119 | |
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| 120 | // specific methods for polarization |
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| 121 | |
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| 122 | G4ThreeVector GetRandomPolarization(G4ThreeVector& direction0); // Random Polarization |
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| 123 | G4ThreeVector GetPerpendicularPolarization(const G4ThreeVector& direction0, const G4ThreeVector& polarization0) const; |
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| 124 | |
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| 125 | G4ThreeVector SetPerpendicularVector(G4ThreeVector& a); // temporary |
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| 126 | G4ThreeVector SetNewPolarization(G4double epsilon, G4double sinSqrTheta, |
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| 127 | G4double phi, G4double cosTheta); |
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| 128 | G4double SetPhi(G4double, G4double); |
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| 129 | |
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| 130 | void SystemOfRefChange(G4ThreeVector& direction0, G4ThreeVector& direction1, |
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| 131 | G4ThreeVector& polarization0, G4ThreeVector& polarization1); |
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| 132 | |
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[961] | 133 | // Doppler Broadening |
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| 134 | |
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| 135 | G4ShellData shellData; |
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| 136 | G4DopplerProfile profileData; |
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| 137 | |
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| 138 | |
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[819] | 139 | }; |
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| 140 | |
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| 141 | #endif |
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