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// $Id: G4ASTARStopping.hh,v 1.6 2008/11/13 12:04:37 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-02 $

#ifndef G4ASTARStopping_h
#define G4ASTARStopping_h 1

//---------------------------------------------------------------------------
//
// ClassName:   G4ASTARStopping
//
// Description: Data on stopping power
//
// Author:      Anton Ivantchenko 21.04.2006
//
// Organisation:        QinetiQ Ltd, UK
// Customer:            ESA/ESTEC, NOORDWIJK
// Contract:            CSMAN-5288
//
// Modifications:
// 
//----------------------------------------------------------------------------
//
// Class Description:
//
// Data on Stopping Powers of the He atoms from the NIST Data Base  
// http://physics.nist.gov/PhysRefData/STAR/Text/ASTAR.html
//

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

#include "globals.hh"

class G4Material;

class G4ASTARStopping 
{ 
public: 

  G4ASTARStopping();

  ~G4ASTARStopping();

  G4int GetIndex(const G4Material*);
  G4double GetEffectiveZ(G4int idx);

  G4double GetElectronicDEDX(G4int idx, G4double energy);
  G4double GetElectronicDEDX(const G4Material*, G4double energy);

private:

  void Initialise();

  // hide assignment operator
  G4ASTARStopping & operator=(const  G4ASTARStopping &right);
  G4ASTARStopping(const  G4ASTARStopping&);

  const G4Material* currentMaterial;
  G4int index, matIndex;
  G4String name[74];
  G4double currentE, res;
  G4double e[74][78], kinE[78];
  G4double effZ[74]; 
};

inline G4double G4ASTARStopping::GetElectronicDEDX(const G4Material* mat, 
						   G4double energy)
{
  return GetElectronicDEDX(GetIndex(mat), energy);
}

inline G4double G4ASTARStopping::GetEffectiveZ(G4int idx)
{
  return effZ[idx];
}

#endif
