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// $Id$
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4alphaIonisation
//
// Author:        Vladimir Ivanchenko
//
// Creation date: 28.10.2009
//
// Modifications:
//
//
// Class Description:
//
// This class manages the ionisation process for He ions. Effective charge,
// nuclear stopping power, energy loss corrections are taken into account.
// It inherites from G4VEnergyLossLoss.
//

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

#ifndef G4alphaIonisation_h
#define G4alphaIonisation_h 1

#include "G4VEnergyLossProcess.hh"

class G4Material;

class G4alphaIonisation : public G4VEnergyLossProcess
{
public:

  G4alphaIonisation(const G4String& name = "alphaIoni");

  virtual ~G4alphaIonisation();

  virtual G4bool IsApplicable(const G4ParticleDefinition& p);

  // Print out of the class parameters
  virtual void PrintInfo();

protected:

  virtual void InitialiseEnergyLossProcess(const G4ParticleDefinition*,
					   const G4ParticleDefinition*);

  virtual G4double MinPrimaryEnergy(const G4ParticleDefinition* p,
				   const G4Material*, G4double cut);

  inline G4double BetheBlochEnergyThreshold();

private:

  // hide assignment operator
  G4alphaIonisation & operator=(const G4alphaIonisation &right);
  G4alphaIonisation(const G4alphaIonisation&);

  const G4ParticleDefinition* theParticle;

  G4double   mass;
  G4double   ratio;
  G4double   eth;

  G4bool     isInitialised;
};

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

inline G4double G4alphaIonisation::BetheBlochEnergyThreshold()
{
  return eth;
}

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

#endif