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// $Id: G4MuBremsstrahlung.hh,v 1.14 2003/01/20 18:16:25 vnivanch Exp $
// GEANT4 tag $Name: geant4-05-01 $
//
//--------------- G4MuBremsstrahlung physics process ------------------
//                by Laszlo Urban, September 1997
//------------------------------------------------------------------------------
// 10/02/00  modifications , new e.m. structure, L.Urban
// 10-08-01: new methods Store/Retrieve PhysicsTable (mma)
// 29-10-01 all static functions no more inlined (mma)
// 16-01-03 Migrade to cut per region (V.Ivanchenko)
//------------------------------------------------------------------------------

#ifndef G4MuBremsstrahlung_h
#define G4MuBremsstrahlung_h 1

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

#include "G4ios.hh"
#include "globals.hh"
#include "Randomize.hh"
#include "G4VMuEnergyLoss.hh"
#include "G4Track.hh"
#include "G4Step.hh"
#include "G4OrderedTable.hh"
#include "G4PhysicsTable.hh"
#include "G4PhysicsLogVector.hh"
#include "G4MaterialCutsCouple.hh"

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

class G4MuBremsstrahlung : public G4VMuEnergyLoss

{
  public:

     G4MuBremsstrahlung(const G4String& processName = "MuBrems");

    ~G4MuBremsstrahlung();

     G4bool IsApplicable(const G4ParticleDefinition&);

     void BuildPhysicsTable(const G4ParticleDefinition& ParticleType);

     void BuildLossTable(const G4ParticleDefinition& ParticleType);

     void BuildLambdaTable(const G4ParticleDefinition& ParticleType);

     void PrintInfoDefinition();

     G4double GetMeanFreePath(const G4Track& track,
                              G4double previousStepSize,
                              G4ForceCondition* condition );

     G4VParticleChange *PostStepDoIt(const G4Track& track,
                                     const G4Step& Step  );

     G4double GetDMicroscopicCrossSection(
                                      const G4ParticleDefinition* ParticleType,
                                            G4double KineticEnergy,
                                            G4double AtomicNumber,
                                            G4double AtomicMass,
                                            G4double GammaEnergy);

     G4bool StorePhysicsTable(G4ParticleDefinition* ,
  		              const G4String& directory, G4bool);
      // store eLoss and MeanFreePath tables into an external file
      // specified by 'directory' (must exist before invokation)

     G4bool RetrievePhysicsTable(G4ParticleDefinition* ,
			         const G4String& directory, G4bool);
      // retrieve eLoss and MeanFreePath tables from an external file
      // specified by 'directory'

  protected:

     G4double ComputeMeanFreePath( const G4ParticleDefinition* ParticleType,
                                         G4double KineticEnergy,
                                   const G4MaterialCutsCouple* couple);

     void ComputePartialSumSigma(  const G4ParticleDefinition* ParticleType,
                                         G4double KineticEnergy,
                                   const G4MaterialCutsCouple* couple);

     virtual G4double ComputeMicroscopicCrossSection(
                                      const G4ParticleDefinition* ParticleType,
                                            G4double KineticEnergy,
                                            G4double AtomicNumber,
                                            G4double AtomicMass,
                                            G4double GammaEnergyCut);

     virtual G4double ComputeDMicroscopicCrossSection(
                                      const G4ParticleDefinition* ParticleType,
                                            G4double KineticEnergy,
                                            G4double AtomicNumber,
                                            G4double AtomicMass,
                                            G4double GammaEnergy);

  private:

     G4MuBremsstrahlung & operator=(const G4MuBremsstrahlung &right);
     G4MuBremsstrahlung(const G4MuBremsstrahlung&);

     G4double ComputeBremLoss(const G4ParticleDefinition* ParticleType,
                                G4double Z,G4double A,
                                G4double T, G4double Cut);

     const G4Element* SelectRandomAtom(const G4MaterialCutsCouple* couple) const;

     void MakeSamplingTables( const G4ParticleDefinition* ParticleType );

  protected:

     virtual G4double SecondaryEnergyThreshold(size_t index);

  private:

     G4PhysicsTable* theMeanFreePathTable;

     G4OrderedTable PartialSumSigma;

     static G4double LowerBoundLambda; // bining for lambda table
     static G4double UpperBoundLambda;
     static G4int    NbinLambda;
     G4double LowestKineticEnergy,HighestKineticEnergy;
     G4int    TotBin;


     const G4std::vector<G4double>* secondaryEnergyCuts;

     // tables for sampling
     static G4int nzdat,ntdat,NBIN;
     static G4double zdat[5],adat[5],tdat[8];
     static G4double ya[1001],proba[5][8][1001];
     static G4double CutFixed;

  public:

    static void SetLowerBoundLambda(G4double val);
    static void SetUpperBoundLambda(G4double val);
    static void SetNbinLambda(G4int n);
    static G4double GetLowerBoundLambda();
    static G4double GetUpperBoundLambda();
    static G4int GetNbinLambda();

};

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

#include "G4MuBremsstrahlung.icc"

#endif