include/Geant4/G4OpRayleigh.hh

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0028 //
0029 ////////////////////////////////////////////////////////////////////////
0030 // Optical Photon Rayleigh Scattering Class Definition
0031 ////////////////////////////////////////////////////////////////////////
0032 //
0033 // File:        G4OpRayleigh.hh
0034 // Description: Discrete Process -- Rayleigh scattering of optical photons
0035 // Version:     1.0
0036 // Created:     1996-05-31
0037 // Author:      Juliet Armstrong
0038 // Updated:     2014-08-20 allow for more material types
0039 //              2005-07-28 add G4ProcessType to constructor
0040 //              1999-10-29 add method and class descriptors
0041 //              1997-04-09 by Peter Gumplinger
0042 //              > new physics/tracking scheme
0043 //
0044 ////////////////////////////////////////////////////////////////////////
0045
0046 #ifndef G4OpRayleigh_h
0047 #define G4OpRayleigh_h 1
0048
0049 #include "G4VDiscreteProcess.hh"
0050 #include "G4OpticalPhoton.hh"
0051 #include "G4PhysicsTable.hh"
0052
0053 class G4OpRayleigh : public G4VDiscreteProcess
0054 {
0055  public:
0056   explicit G4OpRayleigh(const G4String& processName = "OpRayleigh",
0057                         G4ProcessType type          = fOptical);
0058   virtual ~G4OpRayleigh();
0059
0060   virtual G4bool IsApplicable(
0061     const G4ParticleDefinition& aParticleType) override;
0062   // Returns true -> 'is applicable' only for an optical photon.
0063
0064   virtual void BuildPhysicsTable(
0065     const G4ParticleDefinition& aParticleType) override;
0066   // Build thePhysicsTable at a right time
0067
0068   virtual G4double GetMeanFreePath(const G4Track& aTrack, G4double,
0069                                    G4ForceCondition*) override;
0070   // Returns the mean free path for Rayleigh scattering
0071
0072   virtual G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
0073                                           const G4Step& aStep) override;
0074   // This is the method implementing Rayleigh scattering.
0075
0076   virtual G4PhysicsTable* GetPhysicsTable() const;
0077   // Returns the address of the physics table.
0078
0079   virtual void DumpPhysicsTable() const;
0080   // Prints the physics table.
0081
0082   virtual void PreparePhysicsTable(const G4ParticleDefinition&) override;
0083   virtual void Initialise();
0084
0085   void SetVerboseLevel(G4int);
0086
0087  protected:
0088   G4PhysicsTable* thePhysicsTable;
0089
0090  private:
0091   G4OpRayleigh(const G4OpRayleigh& right) = delete;
0092   G4OpRayleigh& operator=(const G4OpRayleigh& right) = delete;
0093
0094   /// Calculates the mean free paths for a material as a function of
0095   /// photon energy
0096   G4PhysicsFreeVector* CalculateRayleighMeanFreePaths(
0097     const G4Material* material) const;
0098
0099   size_t idx_rslength = 0;
0100 };
0101
0102 ////////////////////
0103 // Inline methods
0104 ////////////////////
0105
0106 inline G4bool G4OpRayleigh::IsApplicable(
0107   const G4ParticleDefinition& aParticleType)
0108 {
0109   return (&aParticleType == G4OpticalPhoton::OpticalPhoton());
0110 }
0111
0112 inline void G4OpRayleigh::DumpPhysicsTable() const
0113 {
0114   for(size_t i = 0; i < thePhysicsTable->entries(); ++i)
0115   {
0116     ((G4PhysicsFreeVector*) (*thePhysicsTable)[i])->DumpValues();
0117   }
0118 }
0119
0120 inline G4PhysicsTable* G4OpRayleigh::GetPhysicsTable() const
0121 {
0122   return thePhysicsTable;
0123 }
0124
0125 #endif /* G4OpRayleigh_h */