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29 ////////////////////////////////////////////////////////////////////////
30 // Optical Photon Rayleigh Scattering Class Definition
31 ////////////////////////////////////////////////////////////////////////
32 //
33 // File: G4OpRayleigh.hh
34 // Description: Discrete Process -- Rayleigh scattering of optical photons
35 // Version: 1.0
36 // Created: 1996-05-31
37 // Author: Juliet Armstrong
38 // Updated: 2014-08-20 allow for more material types
39 // 2005-07-28 add G4ProcessType to constructor
40 // 1999-10-29 add method and class descriptors
41 // 1997-04-09 by Peter Gumplinger
42 // > new physics/tracking scheme
43 //
44 ////////////////////////////////////////////////////////////////////////
45
46 #ifndef G4OpRayleigh_h
47 #define G4OpRayleigh_h 1
48
49 #include "G4VDiscreteProcess.hh"
50 #include "G4OpticalPhoton.hh"
51 #include "G4PhysicsTable.hh"
52
53 class G4OpRayleigh : public G4VDiscreteProcess
54 {
55 public:
56 explicit G4OpRayleigh(const G4String& processName = "OpRayleigh",
57 G4ProcessType type = fOptical);
58 virtual ~G4OpRayleigh();
59
60 virtual G4bool IsApplicable(
61 const G4ParticleDefinition& aParticleType) override;
62 // Returns true -> 'is applicable' only for an optical photon.
63
64 virtual void BuildPhysicsTable(
65 const G4ParticleDefinition& aParticleType) override;
66 // Build thePhysicsTable at a right time
67
68 virtual G4double GetMeanFreePath(const G4Track& aTrack, G4double,
69 G4ForceCondition*) override;
70 // Returns the mean free path for Rayleigh scattering
71
72 virtual G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
73 const G4Step& aStep) override;
74 // This is the method implementing Rayleigh scattering.
75
76 virtual G4PhysicsTable* GetPhysicsTable() const;
77 // Returns the address of the physics table.
78
79 virtual void DumpPhysicsTable() const;
80 // Prints the physics table.
81
82 virtual void PreparePhysicsTable(const G4ParticleDefinition&) override;
83 virtual void Initialise();
84
85 void SetVerboseLevel(G4int);
86
87 protected:
88 G4PhysicsTable* thePhysicsTable;
89
90 private:
91 G4OpRayleigh(const G4OpRayleigh& right) = delete;
92 G4OpRayleigh& operator=(const G4OpRayleigh& right) = delete;
93
94 /// Calculates the mean free paths for a material as a function of
95 /// photon energy
96 G4PhysicsFreeVector* CalculateRayleighMeanFreePaths(
97 const G4Material* material) const;
98
99 size_t idx_rslength = 0;
100 };
101
102 ////////////////////
103 // Inline methods
104 ////////////////////
105
106 inline G4bool G4OpRayleigh::IsApplicable(
107 const G4ParticleDefinition& aParticleType)
108 {
109 return (&aParticleType == G4OpticalPhoton::OpticalPhoton());
110 }
111
112 inline void G4OpRayleigh::DumpPhysicsTable() const
113 {
114 for(size_t i = 0; i < thePhysicsTable->entries(); ++i)
115 {
116 ((G4PhysicsFreeVector*) (*thePhysicsTable)[i])->DumpValues();
117 }
118 }
119
120 inline G4PhysicsTable* G4OpRayleigh::GetPhysicsTable() const
121 {
122 return thePhysicsTable;
123 }
124
125 #endif /* G4OpRayleigh_h */
126