// This code implementation is the intellectual property of
// the RD44 GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: G4SandiaTable.hh,v 2.2 1998/12/10 11:43:35 maire Exp $
// GEANT4 tag $Name: geant4-00 $
//
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
//
// 18.11.98 simplified public interface; new methods for materials.  mma
// 10.06.97 created. V. Grichine
//
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....

#ifndef G4SANDIATABLE_HH
#define G4SANDIATABLE_HH

#include "G4OrderedTable.hh"      
#include "G4ios.hh"
#include "globals.hh"
#include <assert.h>

class G4Material;

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

class G4SandiaTable
{
public:

    G4SandiaTable(G4Material*);	         
   ~G4SandiaTable();
   
    static G4int     GetNbOfIntervals   (G4int Z);
    static G4double  GetSandiaCofPerAtom(G4int Z, G4int, G4int);
    static G4double* GetSandiaCofPerAtom(G4int Z, G4double energy);
    static G4double  GetIonizationPot   (G4int Z);
    static G4double  GetZtoA            (G4int Z);
    
           G4int     GetMatNbOfIntervals()  {return fMatNbOfIntervals;};
           G4double  GetSandiaCofForMaterial(G4int,G4int);
           G4double* GetSandiaCofForMaterial(G4double energy);

private:
       
    void ComputeMatSandiaMatrix();
    
private:

    static const G4double        fSandiaTable[981][5];
    static const G4int           fNbOfIntervals[101];
    static       G4int           fCumulInterval[101];
    static const G4double        fZtoAratio[101];
    static const G4double        fIonizationPotentials[101];
               
    static       G4double        fSandiaCofPerAtom[4];
    
                 G4Material*     fMaterial;
                 G4int           fMatNbOfIntervals;
                 G4OrderedTable* fMatSandiaMatrix;    
};
    
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....

// Inline function implementations


inline
G4int G4SandiaTable::GetNbOfIntervals(G4int Z)
{
   return fNbOfIntervals[Z];
}

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

inline
G4double  G4SandiaTable::GetSandiaCofPerAtom(G4int Z, G4int interval, G4int j)
{
   assert (Z>0 && Z<101 && interval>=0 && interval<fNbOfIntervals[Z]
                        && j>=0 && j<5);

   G4int row = fCumulInterval[Z-1] + interval;
   if (j==0) return fSandiaTable[row][0]*keV;
   G4double AoverAvo = Z/(fZtoAratio[Z]*Avogadro*mole);         
   return fSandiaTable[row][j]*AoverAvo*cm2*pow(keV,(int)j);     
}

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

inline
G4double* G4SandiaTable::GetSandiaCofPerAtom(G4int Z, G4double energy)
{
   assert (Z > 0);
   G4int interval = fNbOfIntervals[Z] - 1;
   G4int row = fCumulInterval[Z-1] + interval;
   while ((interval>0) && (energy<fSandiaTable[row][0]*keV))
         row = fCumulInterval[Z-1] + --interval;

   if (energy >= fIonizationPotentials[Z]*eV)
     {        
      G4double AoverAvo = Z/(fZtoAratio[Z]*Avogadro*mole);
         
      fSandiaCofPerAtom[0]=fSandiaTable[row][1]*AoverAvo*cm2*keV;     
      fSandiaCofPerAtom[1]=fSandiaTable[row][2]*AoverAvo*cm2*keV*keV;     
      fSandiaCofPerAtom[2]=fSandiaTable[row][3]*AoverAvo*cm2*keV*keV*keV;     
      fSandiaCofPerAtom[3]=fSandiaTable[row][4]*AoverAvo*cm2*keV*keV*keV*keV;
     }
   else
      fSandiaCofPerAtom[0] = fSandiaCofPerAtom[1] = fSandiaCofPerAtom[2] =
      fSandiaCofPerAtom[3] = 0.;
                        
   return fSandiaCofPerAtom;     

}

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

inline
G4double G4SandiaTable::GetIonizationPot(G4int Z)
{
   return fIonizationPotentials[Z]*eV;
}

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

inline
G4double G4SandiaTable::GetZtoA(G4int Z)
{
   return fZtoAratio[Z];
}

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

#endif