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26 //
27 /// \file Par02FastSimModelTracker.hh
28 /// \brief Definition of the Par02FastSimModelTracker class
29
30 #ifndef PAR02_TRACKER_FAST_SIM_MODEL_H
31 #define PAR02_TRACKER_FAST_SIM_MODEL_H
32
33 #include "Par02DetectorParametrisation.hh"
34
35 #include "G4Navigator.hh"
36 #include "G4Step.hh"
37 #include "G4VFastSimulationModel.hh"
38
39 /// Shortcut to the ordinary tracking for tracking detectors.
40 ///
41 /// The fast simulation model describes what should be done instead of a
42 /// normal tracking. Instead of the ordinary tracking, a particle momentum
43 /// at the entrance of the tracking detector is smeared
44 /// (by Par02Smearer::SmearMomentum()) and the particle is placed at the
45 /// tracking detector exit, at the place it would reach without the change
46 /// of its momentum. Based on G4
47 /// examples/extended/parametrisations/Par01/include/Par01EMShowerModel.hh .
48 /// @author Anna Zaborowska
49
50 class Par02FastSimModelTracker : public G4VFastSimulationModel
51 {
52 public:
53 /// A constructor.
54 /// @param aModelName A name of the fast simulation model.
55 /// @param aEnvelope A region where the model can take over the ordinary tracking.
56 /// @param aParamType A parametrisation type.
57 Par02FastSimModelTracker(G4String aModelName, G4Region* aEnvelope,
58 Par02DetectorParametrisation::Parametrisation aParamType);
59
60 /// A constructor.
61 /// @param aModelName A name of the fast simulation model.
62 /// @param aEnvelope A region where the model can take over the ordinary tracking.
63 Par02FastSimModelTracker(G4String aModelName, G4Region* aEnvelope);
64
65 /// A constructor.
66 /// @param aModelName A name of the fast simulation model.
67 Par02FastSimModelTracker(G4String aModelName);
68
69 ~Par02FastSimModelTracker();
70
71 /// Checks if this model should be applied to this particle type.
72 /// @param aParticle A particle definition (type).
73 virtual G4bool IsApplicable(const G4ParticleDefinition& aParticle);
74
75 /// Checks if the model should be applied taking into account the kinematics
76 /// of a track.
77 /// @param aFastTrack A track.
78 virtual G4bool ModelTrigger(const G4FastTrack& aFastTrack);
79
80 /// Calculates the final position (at the outer boundary of the tracking detector)
81 /// of a particle with the momentum at the entrance of the tracking detector.
82 /// Smears the particle momentum and saves it, together with the tracking detector
83 /// resolution and efficiency to the Par02PrimaryParticleInformation.
84 /// @param aFastTrack A track.
85 /// @param aFastStep A step.
86 virtual void DoIt(const G4FastTrack& aFastTrack, G4FastStep& aFastStep);
87
88 private:
89 /// A pointer to Par02DetectorParametrisation used to get the efficiency and
90 /// resolution of the tracking detector for a given particle and
91 /// parametrisation type.
92 Par02DetectorParametrisation* fCalculateParametrisation;
93
94 /// A parametrisation type.
95 Par02DetectorParametrisation::Parametrisation fParametrisation;
96 };
97
98 #endif
99