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25 //
26 // -------------------------------------------------------------------
27 //
28 // Geant4 Class header file
29 //
30 // File name: G4PolarizedIonisation
31 //
32 // Author: A.Schaelicke on base of Vladimir Ivanchenko code
33 //
34 // Class Description:
35 // polarized version of G4eIonisation
36 // ----------------------------------------------------------------------------
37
38 #ifndef G4PolarizedIonisation_h
39 #define G4PolarizedIonisation_h 1
40
41 #include "globals.hh"
42 #include "G4VEnergyLossProcess.hh"
43
44 class G4Material;
45 class G4MaterialCutsCouple;
46 class G4ParticleDefinition;
47 class G4PhysicsTable;
48 class G4VEmFluctuationModel;
49 class G4PolarizedIonisationModel;
50 class G4Track;
51
52 class G4PolarizedIonisation : public G4VEnergyLossProcess
53 {
54 public:
55 explicit G4PolarizedIonisation(const G4String& name = "pol-eIoni");
56
57 virtual ~G4PolarizedIonisation() override;
58
59 virtual G4bool IsApplicable(const G4ParticleDefinition& p) override;
60
61 virtual void ProcessDescription(std::ostream&) const override;
62 virtual void DumpInfo() const override { ProcessDescription(G4cout); };
63
64 G4PolarizedIonisation& operator=(const G4PolarizedIonisation& right) = delete;
65 G4PolarizedIonisation(const G4PolarizedIonisation&) = delete;
66
67 protected:
68 virtual void InitialiseEnergyLossProcess(
69 const G4ParticleDefinition*, const G4ParticleDefinition*) override;
70
71 virtual G4double MinPrimaryEnergy(const G4ParticleDefinition*,
72 const G4Material*, G4double cut) override;
73
74 virtual G4double PostStepGetPhysicalInteractionLength(
75 const G4Track& track, G4double previousStepSize,
76 G4ForceCondition* condition) override;
77
78 virtual G4double GetMeanFreePath(const G4Track& track,
79 G4double previousStepSize,
80 G4ForceCondition* condition) override;
81
82 virtual void BuildPhysicsTable(const G4ParticleDefinition&) override;
83
84 private:
85 void CleanTables();
86
87 void BuildAsymmetryTables(const G4ParticleDefinition& part);
88
89 G4double ComputeAsymmetry(G4double energy, const G4MaterialCutsCouple* couple,
90 const G4ParticleDefinition& particle, G4double cut,
91 G4double& tasm);
92
93 G4double ComputeSaturationFactor(const G4Track& aTrack);
94
95 G4VEmFluctuationModel* fFlucModel;
96 G4PolarizedIonisationModel* fEmModel;
97
98 G4PhysicsTable* fAsymmetryTable;
99 G4PhysicsTable* fTransverseAsymmetryTable;
100
101 G4bool fIsElectron;
102 G4bool fIsInitialised;
103 };
104
105 #endif
106