include/Geant4/G4KleinNishinaModel.hh

0001 //
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0003 // * License and Disclaimer                                           *
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0025 //
0026 //
0027 // -------------------------------------------------------------------
0028 //
0029 // GEANT4 Class header file
0030 //
0031 //
0032 // File name:     G4KleinNishinaModel
0033 //
0034 // Author:        Vladimir Ivanchenko on base of G4KleinNishinaCompton
0035 //
0036 // Creation date: 13.06.2010
0037 //
0038 // Modifications:
0039 //
0040 // Class Description:
0041 //
0042 // Implementation of gamma Compton scattering with atomic effects
0043 //
0044
0045 // -------------------------------------------------------------------
0046 //
0047
0048 #ifndef G4KleinNishinaModel_h
0049 #define G4KleinNishinaModel_h 1
0050
0051 #include "G4VEmModel.hh"
0052 #include "G4LorentzVector.hh"
0053 #include <vector>
0054
0055 class G4ParticleChangeForGamma;
0056 class G4VAtomDeexcitation;
0057
0058 class G4KleinNishinaModel : public G4VEmModel
0059 {
0060
0061 public:
0062
0063   explicit G4KleinNishinaModel(const G4String& nam = "KleinNishina");
0064
0065   ~G4KleinNishinaModel() override;
0066
0067   void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
0068
0069   void InitialiseLocal(const G4ParticleDefinition*,
0070                G4VEmModel* masterModel) override;
0071
0072   G4double ComputeCrossSectionPerAtom(
0073                                 const G4ParticleDefinition*,
0074                                       G4double kinEnergy,
0075                                       G4double Z,
0076                                       G4double A,
0077                                       G4double cut,
0078                                       G4double emax) override;
0079
0080   void SampleSecondaries(std::vector<G4DynamicParticle*>*,
0081              const G4MaterialCutsCouple*,
0082              const G4DynamicParticle*,
0083              G4double tmin,
0084              G4double maxEnergy) override;
0085
0086   // hide assignment operator
0087   G4KleinNishinaModel & operator=(const  G4KleinNishinaModel &right) = delete;
0088   G4KleinNishinaModel(const  G4KleinNishinaModel&) = delete;
0089
0090 protected:
0091
0092   G4ParticleDefinition*     theGamma;
0093   G4ParticleDefinition*     theElectron;
0094   G4ParticleChangeForGamma* fParticleChange;
0095   G4double                  lowestSecondaryEnergy;
0096
0097 private:
0098
0099   G4LorentzVector lv1, lv2;
0100   G4ThreeVector bst;
0101
0102   G4VAtomDeexcitation*      fAtomDeexcitation;
0103   G4double                  limitFactor;
0104   std::vector<G4double>     fProbabilities;
0105 };
0106
0107 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0108
0109 #endif