include/Geant4/G4AllisonPositronAtRestModel.hh

0001 //
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0025 //
0026 // GEANT4 Class header file
0027 //
0028 // File name:  G4AllisonPositronAtRestModel
0029 //
0030 // Author:     Vladimir Ivanchenko
0031 //
0032 // Creation date: 14 May 2024
0033 //
0034 // Class Description:
0035 //
0036 // Allison AtRest positron 2-gamma annihilation model
0037 // Electron of media is assumed to have the Maxwell–Boltzmann
0038 // distribution defined by the temperature of the media.
0039 // Energy of mean ionisation should not be zero - some amount of free
0040 // electrons should be in the media.
0041 // Polarisation of gamma according to M.H.L.Pryce and J.C.Ward,
0042 // Nature 4065 (1947) 435.
0043 // Snyder et al, Physical Review 73 (1948) p.440.
0044 //
0045 // -------------------------------------------------------------------
0046 //
0047
0048 #ifndef G4AllisonPositronAtRestModel_h
0049 #define G4AllisonPositronAtRestModel_h 1
0050
0051 #include "G4VPositronAtRestModel.hh"
0052
0053 class G4AllisonPositronAtRestModel : public G4VPositronAtRestModel
0054 {
0055
0056 public:
0057
0058   G4AllisonPositronAtRestModel();
0059
0060   ~G4AllisonPositronAtRestModel() override = default;
0061
0062   void SampleSecondaries(std::vector<G4DynamicParticle*>& secParticles,
0063              G4double&, const G4Material*) const override;
0064
0065   void PrintGeneratorInformation() const override;
0066
0067   G4AllisonPositronAtRestModel& operator=
0068   (const  G4AllisonPositronAtRestModel& right) = delete;
0069   G4AllisonPositronAtRestModel(const G4AllisonPositronAtRestModel&) = delete;
0070
0071 };
0072
0073 #endif