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25 //
26 // G4TransportationWithMsc
27 //
28 // Class Description:
29 //
30 // It is a generic process of transportation with multiple scattering included
31 // in the step limitation and propagation.
32 //
33 // Original author: Jonas Hahnfeld, 2022
34
35 #ifndef G4TrasportationWithMsc_h
36 #define G4TrasportationWithMsc_h 1
37
38 #include "G4Transportation.hh"
39
40 #include <vector>
41
42 class G4DataVector;
43 class G4EmDataHandler;
44 class G4EmModelManager;
45 class G4LossTableManager;
46 class G4ParticleChangeForGamma;
47 class G4ParticleChangeForMSC;
48 class G4ParticleDefinition;
49 class G4PhysicsTable;
50 class G4Region;
51 class G4VEmModel;
52 class G4VEnergyLossProcess;
53 class G4VMscModel;
54
55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
56
57 class G4TransportationWithMsc : public G4Transportation
58 {
59 public:
60 enum class ScatteringType
61 {
62 MultipleScattering,
63 SingleScattering,
64 };
65
66 explicit G4TransportationWithMsc(ScatteringType type, G4int verbosity = 0);
67
68 ~G4TransportationWithMsc() override;
69
70 inline void SetMultipleSteps(G4bool val);
71 inline G4bool MultipleSteps() const;
72
73 void AddMscModel(G4VMscModel* mscModel, G4int order = 0, const G4Region* region = nullptr);
74
75 void AddSSModel(G4VEmModel* model, G4int order = 0, const G4Region* region = nullptr);
76
77 public:
78 void PreparePhysicsTable(const G4ParticleDefinition& part) override;
79 void BuildPhysicsTable(const G4ParticleDefinition& part) override;
80
81 void StartTracking(G4Track* track) override;
82
83 G4double AlongStepGetPhysicalInteractionLength(const G4Track& track, G4double previousStepSize,
84 G4double currentMinimumStep,
85 G4double& proposedSafety,
86 G4GPILSelection* selection) override;
87
88 private:
89 const ScatteringType fType;
90 G4bool fMultipleSteps = false;
91
92 G4LossTableManager* fEmManager;
93 G4EmModelManager* fModelManager;
94
95 // Not initialized in the constructor, but later in PreparePhysicsTable or StartTracking.
96 const G4DataVector* fCuts = nullptr;
97 const G4ParticleDefinition* fFirstParticle = nullptr;
98 G4VEnergyLossProcess* fIonisation = nullptr;
99
100 // For ScatteringType::MultipleScattering
101 G4ParticleChangeForMSC* fParticleChangeForMSC = nullptr;
102
103 // For ScatteringType::SingleScattering
104 G4EmDataHandler* fEmData = nullptr;
105 G4PhysicsTable* fLambdaTable = nullptr;
106 G4ParticleChangeForGamma* fParticleChangeForSS = nullptr;
107 std::vector<G4DynamicParticle*>* fSecondariesSS = nullptr;
108
109 G4DynamicParticle* fSubStepDynamicParticle;
110 G4Track* fSubStepTrack;
111 G4Step* fSubStep;
112 };
113
114 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
115
116 inline void G4TransportationWithMsc::SetMultipleSteps(G4bool val)
117 {
118 fMultipleSteps = val;
119 }
120
121 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
122
123 inline G4bool G4TransportationWithMsc::MultipleSteps() const
124 {
125 return fMultipleSteps;
126 }
127
128 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
129
130 #endif
131