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// $Id: G4FissionBarrier.hh,v 1.6 2010/11/17 20:22:46 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-04-ref-00 $
//
// Hadronic Process: Nuclear De-excitations
// by V. Lara (Oct 1998)

#ifndef G4FissionBarrier_h
#define G4FissionBarrier_h 1

#include "G4VFissionBarrier.hh"
#include "globals.hh"
#include "G4CameronShellPlusPairingCorrections.hh"

class G4FissionBarrier : public G4VFissionBarrier
{
public:
  G4FissionBarrier();
  ~G4FissionBarrier();

private:
  G4FissionBarrier(const G4FissionBarrier & right);

  const G4FissionBarrier & operator=(const G4FissionBarrier & right);
  G4bool operator==(const G4FissionBarrier & right) const;
  G4bool operator!=(const G4FissionBarrier & right) const;
  
public:
  G4double FissionBarrier(G4int A, G4int Z, G4double U);


private:

  G4double BarashenkovFissionBarrier(G4int A, G4int Z);
  
  inline G4double SellPlusPairingCorrection(G4int Z, G4int N)
  { 
    G4CameronShellPlusPairingCorrections* SPtr = G4CameronShellPlusPairingCorrections::GetInstance();
    return SPtr->GetShellPlusPairingZ(Z) + SPtr->GetShellPlusPairingN(N); 
  }

};

#endif