G4LivermorePolarizedRayleighModel.hh

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00025 //
00026 // $Id$
00027 //
00028 // Author: Sebastien Incerti
00029 //         30 October 2008
00030 //         on base of G4LowEnergyPolarizedRayleigh developed by R. Capra
00031 //
00032 
00033 #ifndef G4LivermorePolarizedRayleighModel_h
00034 #define G4LivermorePolarizedRayleighModel_h 1
00035 
00036 #include "G4VEmModel.hh"
00037 #include "G4ParticleChangeForGamma.hh"
00038 #include "G4CrossSectionHandler.hh"
00039 #include "G4LogLogInterpolation.hh"
00040 #include "G4CompositeEMDataSet.hh"
00041 #include "G4Gamma.hh"
00042 
00043 class G4LivermorePolarizedRayleighModel : public G4VEmModel
00044 {
00045 
00046 public:
00047 
00048   G4LivermorePolarizedRayleighModel(const G4ParticleDefinition* p = 0, 
00049                      const G4String& nam = "LivermorePolarizedRayleigh");
00050 
00051   virtual ~G4LivermorePolarizedRayleighModel();
00052 
00053   virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
00054 
00055   virtual G4double ComputeCrossSectionPerAtom(
00056                                 const G4ParticleDefinition*,
00057                                       G4double kinEnergy, 
00058                                       G4double Z, 
00059                                       G4double A=0, 
00060                                       G4double cut=0,
00061                                       G4double emax=DBL_MAX);
00062 
00063   virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
00064                                  const G4MaterialCutsCouple*,
00065                                  const G4DynamicParticle*,
00066                                  G4double tmin,
00067                                  G4double maxEnergy);
00068 
00069 protected:
00070 
00071   G4ParticleChangeForGamma* fParticleChange;
00072 
00073 private:
00074 
00075   G4double lowEnergyLimit;  
00076   G4double highEnergyLimit; 
00077   
00078   G4int verboseLevel;
00079   G4bool isInitialised;
00080 
00081   G4VCrossSectionHandler* crossSectionHandler;
00082   G4VEMDataSet* formFactorData;
00083 
00084   //   Generates \f$cos \left ( \theta\right )\f$ of the scattered photon
00085   //   incomingPhotonEnergy The energy of the incoming photon
00086   //   zAtom Atomic number
00087   //   \f$cos \left ( \theta\right )\f$
00088   G4double GenerateCosTheta(G4double incomingPhotonEnergy, G4int zAtom) const;
00089    
00090   //   Generates \f$\phi\f$ of the scattered photon
00091   //   cosTheta \f$cos \left ( \theta\right )\f$ of the scattered photon
00092   //    \f$\phi\f$
00093   G4double GeneratePhi(G4double cosTheta) const;
00094 
00095   //   Generates the polarization direction \f$\beta\f$ in the plane x, y relative to the x direction
00096   //   \f$\beta\f$
00097   G4double GeneratePolarizationAngle(void) const;
00098  
00099   G4ThreeVector GetPhotonPolarization(const G4DynamicParticle&  photon);
00100 
00101   G4LivermorePolarizedRayleighModel & operator=(const  G4LivermorePolarizedRayleighModel &right);
00102   G4LivermorePolarizedRayleighModel(const  G4LivermorePolarizedRayleighModel&);
00103 
00104 };
00105 
00106 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
00107 
00108 #endif

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