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// class description
//
// The class contains few (physical) quantities related to the Ionisation
// process, for the Element defined by its atomic number Z
//
// 09.03.01: copy constructor and assignement operator in public (mma)
// 09.07.98: data moved from G4Element (mma)

#ifndef G4IonisParamElm_HH
#define G4IonisParamElm_HH

#include "G4ios.hh"
#include "globals.hh"

class G4IonisParamElm
{
 public:  // with description
  G4IonisParamElm(G4double Z);
  ~G4IonisParamElm();
  G4IonisParamElm& operator=(const G4IonisParamElm&) = delete;
  G4IonisParamElm(G4IonisParamElm&) = delete;

  // retrieval methods

  // atomic number Z
  G4double GetZ() const { return fZ; }

  // std::pow (Z,1/3)
  G4double GetZ3() const { return fZ3; }

  // std::pow (Z(Z+1),1/3)
  G4double GetZZ3() const { return fZZ3; }

  // std::log(Z)/3
  G4double GetlogZ3() const { return flogZ3; }

  // 0.1*std::pow(Z,1/3)*MeV/proton_mass_c2
  G4double GetTau0() const { return fTau0; };

  // 2*MeV/proton mass
  G4double GetTaul() const { return fTaul; }

  // parameters for the low energy ion.loss
  G4double GetAlow() const { return fAlow; }
  G4double GetBlow() const { return fBlow; }
  G4double GetClow() const { return fClow; }

  // ICRU'37 report
  G4double GetMeanExcitationEnergy() const { return fMeanExcitationEnergy; }

  G4double GetFermiVelocity() const { return fVFermi; };
  G4double GetLFactor() const { return fLFactor; };

  // shell correction coefficients
  G4double* GetShellCorrectionVector() const { return fShellCorrectionVector; }

  G4bool operator==(const G4IonisParamElm&) const = delete;
  G4bool operator!=(const G4IonisParamElm&) const = delete;

 private:
  //
  //  data members
  //
  G4double fZ;  // effective Z
  G4double fZ3;  // std::pow (Z,1/3)
  G4double fZZ3;  // std::pow (Z(Z+1),1/3)
  G4double flogZ3;  // std::log(Z)/3

  //  ------ ionisation loss ---------------------------------

  G4double fTau0;  // 0.1*std::pow(Z,1/3)*MeV/proton_mass_c2
  G4double fTaul;  // 2*MeV/proton mass
  G4double fBetheBlochLow;  // Bethe-Bloch at fTaul*particle mass
  G4double fAlow, fBlow, fClow;  // parameters for the low energy ion.loss
  G4double fMeanExcitationEnergy;  //
  G4double* fShellCorrectionVector;  // shell correction coefficients

  // parameters for ion corrections computations
  G4double fVFermi;
  G4double fLFactor;
};

#endif