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Geant4/examples/extended/parameterisations/Par02/include/Par02FastSimModelTracker.hh

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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