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// $Id$
//
//
//------------------ G4GammaConversion physics process------------------------
//                   by Michel Maire, 24 May 1996
//
// 11-06-96, Added GetRandomAtom() method and new data member
//           for cumulative total cross section, by M.Maire
// 21-06-96, SetCuts inplementation, M.Maire
// 16-09-96, Dynamical array PartialSumSigma, M.Maire
// 14-01-97, crossection table + meanfreepath table.
//           PartialSumSigma removed, M.Maire
// 14-03-97, new physics scheme for geant4alpha, M.Maire
// 13-08-98, new methods SetBining() PrintInfo()
// 03-08-01, new methods Store/Retrieve PhysicsTable (mma)
// 06-08-01, BuildThePhysicsTable() called from constructor (mma)
// 19-09-01, come back to previous ProcessName: "conv"
// 20-09-01, DoIt: fminimalEnergy = 1*eV (mma)
// 01-10-01, come back to BuildPhysicsTable(const G4ParticleDefinition&)
// 13-08-04, suppress .icc file
//           public ComputeCrossSectionPerAtom() and ComputeMeanFreePath() (mma)
// 09-11-04, Remove Retrieve tables (V.Ivantchenko)
// 19-04-05, Redesign - use G4VEmProcess interface (V.Ivantchenko)
// 04-05-05, Make class to be default (V.Ivanchenko)
// 09-08-06, add SetModel(G4VEmModel*) (mma)
// 12-09-06, move SetModel(G4VEmModel*) in G4VEmProcess (mma)
// -----------------------------------------------------------------------------

// class description
//

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#ifndef G4GammaConversion_h
#define G4GammaConversion_h 1

#include "globals.hh"
#include "G4VEmProcess.hh"
#include "G4Gamma.hh"

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class G4ParticleDefinition;
class G4VEmModel;
class G4MaterialCutsCouple;
class G4DynamicParticle;

class G4GammaConversion : public G4VEmProcess

{
public:  // with description

  G4GammaConversion(const G4String& processName ="conv",
		      G4ProcessType type = fElectromagnetic);

  virtual ~G4GammaConversion();

  // true for Gamma only.
  virtual G4bool IsApplicable(const G4ParticleDefinition&);

  virtual G4double MinPrimaryEnergy(const G4ParticleDefinition*,
				    const G4Material*);

  // Print few lines of informations about the process: validity range,
  virtual void PrintInfo();

protected:

  virtual void InitialiseProcess(const G4ParticleDefinition*);

private:
     
  G4bool  isInitialised;
};

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#endif