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//
#ifndef G4TripathiLightCrossSection_h
#define G4TripathiLightCrossSection_h
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//
// MODULE:              G4TripathiLightCrossSection.hh
//
// Version:		B.1
// Date:		15/04/04
// Author:		P R Truscott
// Organisation:	QinetiQ Ltd, UK
// Customer:		ESA/ESTEC, NOORDWIJK
// Contract:		17191/03/NL/LvH
//
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//
// CHANGE HISTORY
// --------------
//
// 6 October 2003, P R Truscott, QinetiQ Ltd, UK
// Created.
//
// 15 March 2004, P R Truscott, QinetiQ Ltd, UK
// Beta release
//
// 26 Dec 2006, D. Wright - added isotope dependence
//
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//
// Class Description
// Implementation of formulas of Tripathi, Cucinotta and Wilson, NASA Technical
// Paper TP-1999-209726 to calculate cross-sections for nuclear-nuclear
// inelastic scattering for light nuclear systems.
//
// Class Description - End
//
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
///////////////////////////////////////////////////////////////////////////////
//
#include "globals.hh"

#include "G4VCrossSectionDataSet.hh"
#include "G4WilsonRadius.hh"
///////////////////////////////////////////////////////////////////////////////
//
class G4TripathiLightCrossSection : public G4VCrossSectionDataSet
{
  public:
    G4TripathiLightCrossSection();
    ~G4TripathiLightCrossSection();
    virtual G4bool IsApplicable(const G4DynamicParticle* theProjectile,
      const G4Element* theTarget);

    virtual G4bool IsIsoApplicable(const G4DynamicParticle* theProjectile,
                                   G4int ZZ, G4int AA);

    virtual G4double GetCrossSection(const G4DynamicParticle* theProjectile,
      const G4Element* theTarget, G4double theTemperature);

    virtual 
    G4double GetZandACrossSection(const G4DynamicParticle* theProjectile,
                                  G4int ZZ, G4int AA, 
                                  G4double theTemperature);

    virtual void BuildPhysicsTable(const G4ParticleDefinition&)
    {}

    virtual void DumpPhysicsTable(const G4ParticleDefinition&)
    {G4cout << "G4TripathiLightCrossSection: uses formula"<<G4endl;}
    void SetLowEnergyCheck(G4bool);

  private:
    G4WilsonRadius *theWilsonRadius;
    G4double       r_0;
    G4double       third;
    G4bool         lowEnergyCheck;
};

#endif
