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G4OpMieHG.hh
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25 //
27 //
28 // File G4OpMieHG.hh
29 // Description: Discrete Process -- Mie Scattering of Optical Photons
30 // Created: 2010-07-03
31 // Author: Xin Qian
32 // Based on work from Vlasios Vasileiou
33 //
34 // This subroutine will mimic the Mie scattering based on
35 // Henyey-Greenstein phase function
36 // Forward and backward angles are treated separately.
37 //
38 // mail: gum@triumf.ca
39 //
41 
42 #ifndef G4OpMieHG_h
43 #define G4OpMieHG_h 1
44 
45 #include "G4VDiscreteProcess.hh"
46 #include "G4OpticalPhoton.hh"
47 
49 {
50 
51 public:
52 
53  explicit G4OpMieHG(const G4String& processName = "OpMieHG",
54  G4ProcessType type = fOptical);
55  virtual ~G4OpMieHG();
56 
57 public:
58 
59  virtual G4bool IsApplicable(const G4ParticleDefinition& aParticleType) override;
60  // Returns true -> 'is applicable' only for an optical photon.
61 
62  virtual G4double GetMeanFreePath(const G4Track& aTrack,
63  G4double,
64  G4ForceCondition*) override;
65  // Return the mean free path of Mie scattering
66 
67  virtual G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
68  const G4Step& aStep) override;
69  // This is the method implementing Mie scattering.
70 
71 private:
72 
73  G4OpMieHG(const G4OpMieHG &right) = delete;
74  G4OpMieHG& operator=(const G4OpMieHG &right) = delete;
75 
76 };
77 
78 inline
80 {
81  return (&aParticleType == G4OpticalPhoton::OpticalPhoton());
82 }
83 
84 #endif /* G4OpMieHG_h */