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//
// -------------------------------------------------------------------
//
// GEANT4 Class file
//
//
// File name:     G4hZiegler1977He
//
// Author:        V.Ivanchenko (Vladimir.Ivanchenko@cern.ch)
// 
// Creation date: 20 July 2000
//
// Modifications: 
// 20/07/2000  V.Ivanchenko First implementation
//
// Class Description: 
//
// Electronic stopping power parameterised according to
// J.F.Ziegler, Helium Stopping Powers and
// Ranges in All Elemental Matter, Vol.4, Pergamon Press, 1977
// Further documentation available from http://www.ge.infn.it/geant4/lowE/

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

#ifndef G4hZiegler1977He_h
#define G4hZiegler1977He_h 1

#include "globals.hh"
#include "G4VhElectronicStoppingPower.hh"

class G4Material;

class G4hZiegler1977He : public G4VhElectronicStoppingPower
{

public:

  G4hZiegler1977He() ;

  ~G4hZiegler1977He() ;

  G4bool HasMaterial(const G4Material* material);

  G4double StoppingPower(const G4Material* material,
                               G4double kineticEnergy);

  G4double ElectronicStoppingPower(G4double z,
                                   G4double kineticEnergy) const;
 
protected:

private:
  G4double rateMass;         // HeMassAMU/ProtonMassAMU

};

#endif