G4TransportationWithMsc.hh

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// G4TransportationWithMsc
//
// Class Description:
//
// It is a generic process of transportation with multiple scattering included
// in the step limitation and propagation.
//
// Original author: Jonas Hahnfeld, 2022
 
#ifndef G4TrasportationWithMsc_h
#define G4TrasportationWithMsc_h 1
 
#include "G4Transportation.hh"
 
#include <vector>
 
class G4EmModelManager;
class G4LossTableManager;
class G4ParticleDefinition;
class G4Region;
class G4VMscModel;
 
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class G4TransportationWithMsc : public G4Transportation
{
 public:
  enum class ScatteringType
  {
    MultipleScattering,
  };
 
  explicit G4TransportationWithMsc(ScatteringType type, G4int verbosity = 0);
 
  ~G4TransportationWithMsc() override;
 
  inline void SetMultipleSteps(G4bool val);
  inline G4bool MultipleSteps() const;
 
  void AddMscModel(G4VMscModel* mscModel, G4int order = 0,
                   const G4Region* region = nullptr);
 
 public:
  void PreparePhysicsTable(const G4ParticleDefinition& part) override;
  void BuildPhysicsTable(const G4ParticleDefinition& part) override;
 
  void StartTracking(G4Track* track) override;
 
  G4double AlongStepGetPhysicalInteractionLength(
    const G4Track& track, G4double previousStepSize,
    G4double currentMinimumStep, G4double& proposedSafety,
    G4GPILSelection* selection) override;
 
 private:
  const ScatteringType fType;
  G4bool fMultipleSteps = false;
 
  G4LossTableManager* fEmManager;
  G4EmModelManager* fModelManager;
  const G4ParticleDefinition* fFirstParticle = nullptr;
 
  G4DynamicParticle* fSubStepDynamicParticle;
  G4Track* fSubStepTrack;
  G4Step* fSubStep;
};
 
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inline void G4TransportationWithMsc::SetMultipleSteps(G4bool val)
{
  fMultipleSteps = val;
}
 
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inline G4bool G4TransportationWithMsc::MultipleSteps() const
{
  return fMultipleSteps;
}
 
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#endif