G4KleinNishinaModel.hh

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//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4KleinNishinaModel
//
// Author:        Vladimir Ivanchenko on base of G4KleinNishinaCompton
//
// Creation date: 13.06.2010
//
// Modifications:
//
// Class Description:
//
// Implementation of gamma Compton scattering with atomic effects 
// 
 
// -------------------------------------------------------------------
//
 
#ifndef G4KleinNishinaModel_h
#define G4KleinNishinaModel_h 1
 
#include "G4VEmModel.hh"
#include "G4LorentzVector.hh"
#include <vector>
 
class G4ParticleChangeForGamma;
class G4VAtomDeexcitation;
 
class G4KleinNishinaModel : public G4VEmModel
{
 
public:
 
  explicit G4KleinNishinaModel(const G4String& nam = "KleinNishina");
 
  ~G4KleinNishinaModel() 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
  G4KleinNishinaModel & operator=(const  G4KleinNishinaModel &right) = delete;
  G4KleinNishinaModel(const  G4KleinNishinaModel&) = delete;
 
protected:
 
  G4ParticleDefinition*     theGamma;
  G4ParticleDefinition*     theElectron;
  G4ParticleChangeForGamma* fParticleChange;
  G4double                  lowestSecondaryEnergy;
 
private:
 
  G4LorentzVector lv1, lv2;
  G4ThreeVector bst;
 
  G4VAtomDeexcitation*      fAtomDeexcitation;
  G4double                  limitFactor;
  std::vector<G4double>     fProbabilities;
};
 
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#endif