| 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: G4LivermorePolarizedRayleighModel.hh,v 1.3 2009/05/02 15:20:52 sincerti Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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| 28 | // |
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| 29 | |
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| 30 | #ifndef G4LivermorePolarizedRayleighModel_h |
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| 31 | #define G4LivermorePolarizedRayleighModel_h 1 |
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| 32 | |
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| 33 | #include "G4VEmModel.hh" |
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| 34 | #include "G4ParticleChangeForGamma.hh" |
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| 35 | #include "G4CrossSectionHandler.hh" |
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| 36 | #include "G4LogLogInterpolation.hh" |
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| 37 | #include "G4CompositeEMDataSet.hh" |
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| 38 | #include "G4Gamma.hh" |
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| 39 | |
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| 40 | class G4LivermorePolarizedRayleighModel : public G4VEmModel |
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| 41 | { |
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| 42 | |
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| 43 | public: |
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| 44 | |
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| 45 | G4LivermorePolarizedRayleighModel(const G4ParticleDefinition* p = 0, |
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| 46 | const G4String& nam = "LivermorePolarizedRayleigh"); |
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| 47 | |
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| 48 | virtual ~G4LivermorePolarizedRayleighModel(); |
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| 49 | |
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| 50 | virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&); |
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| 51 | |
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| 52 | virtual G4double ComputeCrossSectionPerAtom( |
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| 53 | const G4ParticleDefinition*, |
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| 54 | G4double kinEnergy, |
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| 55 | G4double Z, |
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| 56 | G4double A=0, |
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| 57 | G4double cut=0, |
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| 58 | G4double emax=DBL_MAX); |
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| 59 | |
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| 60 | virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*, |
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| 61 | const G4MaterialCutsCouple*, |
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| 62 | const G4DynamicParticle*, |
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| 63 | G4double tmin, |
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| 64 | G4double maxEnergy); |
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| 65 | |
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| 66 | protected: |
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| 67 | |
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| 68 | G4ParticleChangeForGamma* fParticleChange; |
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| 69 | |
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| 70 | private: |
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| 71 | |
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| 72 | G4double lowEnergyLimit; |
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| 73 | G4double highEnergyLimit; |
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| 74 | |
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| 75 | G4int verboseLevel; |
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| 76 | G4bool isInitialised; |
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| 77 | |
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| 78 | G4VCrossSectionHandler* crossSectionHandler; |
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| 79 | G4VEMDataSet* formFactorData; |
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| 80 | |
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| 81 | // Generates \f$cos \left ( \theta\right )\f$ of the scattered photon |
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| 82 | // incomingPhotonEnergy The energy of the incoming photon |
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| 83 | // zAtom Atomic number |
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| 84 | // \f$cos \left ( \theta\right )\f$ |
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| 85 | G4double GenerateCosTheta(G4double incomingPhotonEnergy, G4int zAtom) const; |
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| 86 | |
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| 87 | // Generates \f$\phi\f$ of the scattered photon |
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| 88 | // cosTheta \f$cos \left ( \theta\right )\f$ of the scattered photon |
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| 89 | // \f$\phi\f$ |
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| 90 | G4double GeneratePhi(G4double cosTheta) const; |
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| 91 | |
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| 92 | // Generates the polarization direction \f$\beta\f$ in the plane x, y relative to the x direction |
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| 93 | // \f$\beta\f$ |
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| 94 | G4double GeneratePolarizationAngle(void) const; |
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| 95 | |
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| 96 | G4ThreeVector GetPhotonPolarization(const G4DynamicParticle& photon); |
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| 97 | |
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| 98 | G4LivermorePolarizedRayleighModel & operator=(const G4LivermorePolarizedRayleighModel &right); |
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| 99 | G4LivermorePolarizedRayleighModel(const G4LivermorePolarizedRayleighModel&); |
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| 100 | |
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| 101 | }; |
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| 102 | |
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| 103 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 104 | |
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| 105 | #endif |
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