G4KleinNishinaCompton.hh

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// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4KleinNishinaCompton
//
// Author:        Vladimir Ivanchenko on base of Michel Maire code
//
// Creation date: 15.03.2005
//
// Modifications:
// 18-04-05 Use G4ParticleChangeForGamma (V.Ivantchenko)
//
//
// Class Description:
//
// Implementation of gamma Compton scatteribg on free electron
// 
 
// -------------------------------------------------------------------
//
 
#ifndef G4KleinNishinaCompton_h
#define G4KleinNishinaCompton_h 1
 
#include "G4VEmModel.hh"
 
class G4ParticleChangeForGamma;
 
class G4KleinNishinaCompton : public G4VEmModel
{
 
public:
 
  explicit G4KleinNishinaCompton(const G4ParticleDefinition* p = nullptr, 
                 const G4String& nam = "Klein-Nishina");
 
  ~G4KleinNishinaCompton() override;
 
  void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
 
  void InitialiseLocal(const G4ParticleDefinition*, 
               G4VEmModel* masterModel) override;
 
  G4double ComputeCrossSectionPerAtom(
                                const G4ParticleDefinition*,
                                      G4double kinEnergy, 
                                      G4double Z, 
                                      G4double A, 
                                      G4double cut,
                                      G4double emax) override;
 
  void SampleSecondaries(std::vector<G4DynamicParticle*>*,
             const G4MaterialCutsCouple*,
             const G4DynamicParticle*,
             G4double tmin,
             G4double maxEnergy) override;
 
  // hide assignment operator
  G4KleinNishinaCompton & operator=
  (const G4KleinNishinaCompton &right) = delete;
  G4KleinNishinaCompton(const  G4KleinNishinaCompton&) = delete;
 
protected:
 
  G4ParticleDefinition*     theGamma;
  G4ParticleDefinition*     theElectron;
  G4ParticleChangeForGamma* fParticleChange;
  G4double                  lowestSecondaryEnergy;
};
 
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#endif