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// $Id: G4PolarizedGammaConversionModel.hh,v 1.2 2007/05/23 08:52:20 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-03 $
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4PolarizedGammaConversionModel
//
// Author:        Karim Laihem
//
// Creation date: 19.04.2005
//
// Modifications:
// 21-08-06 Modified to work in g4.8.1 framework (A.Schaelicke)
//
// Class Description:
//
// Implementation of gamma convertion to e+e- in the field of a nucleus 
// including polarization transfer

// -------------------------------------------------------------------
//

#ifndef G4PolarizedGammaConversionModel_h
#define G4PolarizedGammaConversionModel_h 1

#include "G4BetheHeitlerModel.hh"
#include "G4PhysicsTable.hh"

class G4ParticleChangeForGamma;
class G4VPolarizedCrossSection;
class G4PolarizedGammaConversionModel : public G4BetheHeitlerModel
{

public:

  G4PolarizedGammaConversionModel(const G4ParticleDefinition* p = 0, 
		      const G4String& nam = "polConv");

  virtual ~G4PolarizedGammaConversionModel();
 
  virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);

  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
				 const G4MaterialCutsCouple*,
				 const G4DynamicParticle*,
				 G4double tmin,
				 G4double maxEnergy);

  inline const G4Element* SelectedAtom();

 protected:
  G4VPolarizedCrossSection*           crossSectionCalculator;

};



//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

inline const G4Element* G4PolarizedGammaConversionModel::SelectedAtom()
{
  return GetCurrentElement();
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

#endif
