G4OpticalSurface.hh

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////////////////////////////////////////////////////////////////////////
// G4OpticalSurface Definition
////////////////////////////////////////////////////////////////////////
//
// File:        G4OpticalSurface.hh
// Description: A optical surface class for use in G4OpBoundaryProcess
// Version:     2.0
// Created:     1997-06-26
// Author:      Peter Gumplinger
// Updated:     1999-10-29 add method and class descriptors
//              2017-02-24 Mariele Stockhoff add DAVIS model
//
////////////////////////////////////////////////////////////////////////
 
#ifndef G4OpticalSurface_h
#define G4OpticalSurface_h 1
 
#include "G4Types.hh"
#include "G4Physics2DVector.hh"
#include "G4SurfaceProperty.hh"
 
// Class Description:
// A optical surface class for use in the G4OpBoundaryProcess class.
// Contains the enumerations: G4OpticalSurfaceFinish, G4OpticalSurfaceType,
// and G4OpticalSurfaceModel.
// Class Description - End:
 
enum G4OpticalSurfaceFinish
{
  polished,              // smooth perfectly polished surface
  polishedfrontpainted,  // smooth top-layer (front) paint
  polishedbackpainted,   // same is 'polished' but with a back-paint
 
  ground,              // rough surface
  groundfrontpainted,  // rough top-layer (front) paint
  groundbackpainted,   // same as 'ground' but with a back-paint
 
  // for LBNL LUT model
  polishedlumirrorair,   // mechanically polished surface, with lumirror
  polishedlumirrorglue,  // mechanically polished surface, with lumirror &
                         // meltmount
  polishedair,           // mechanically polished surface
  polishedteflonair,     // mechanically polished surface, with teflon
  polishedtioair,        // mechanically polished surface, with tio paint
  polishedtyvekair,      // mechanically polished surface, with tyvek
  polishedvm2000air,     // mechanically polished surface, with esr film
  polishedvm2000glue,    // mechanically polished surface, with esr film &
                         // meltmount
 
  etchedlumirrorair,   // chemically etched surface, with lumirror
  etchedlumirrorglue,  // chemically etched surface, with lumirror & meltmount
  etchedair,           // chemically etched surface
  etchedteflonair,     // chemically etched surface, with teflon
  etchedtioair,        // chemically etched surface, with tio paint
  etchedtyvekair,      // chemically etched surface, with tyvek
  etchedvm2000air,     // chemically etched surface, with esr film
  etchedvm2000glue,    // chemically etched surface, with esr film & meltmount
 
  groundlumirrorair,   // rough-cut surface, with lumirror
  groundlumirrorglue,  // rough-cut surface, with lumirror & meltmount
  groundair,           // rough-cut surface
  groundteflonair,     // rough-cut surface, with teflon
  groundtioair,        // rough-cut surface, with tio paint
  groundtyvekair,      // rough-cut surface, with tyvek
  groundvm2000air,     // rough-cut surface, with esr film
  groundvm2000glue,    // rough-cut surface, with esr film & meltmount
 
  // for DAVIS model
  Rough_LUT,              // rough surface
  RoughTeflon_LUT,        // rough surface wrapped in Teflon tape
  RoughESR_LUT,           // rough surface wrapped with ESR
  RoughESRGrease_LUT,     // rough surface wrapped with ESR
                          // and coupled with optical grease
  Polished_LUT,           // polished surface
  PolishedTeflon_LUT,     // polished surface wrapped in Teflon tape
  PolishedESR_LUT,        // polished surface wrapped with ESR
  PolishedESRGrease_LUT,  // polished surface wrapped with ESR
                          // and coupled with optical grease
  Detector_LUT            // polished surface with optical grease
};
 
enum G4OpticalSurfaceModel
{
  glisur,   // original GEANT3 model
  unified,  // UNIFIED model
  LUT,      // Look-Up-Table model (LBNL model)
  DAVIS,    // DAVIS model
  dichroic  // dichroic filter
};
 
class G4MaterialPropertiesTable;
 
class G4OpticalSurface : public G4SurfaceProperty
{
 public:
  G4OpticalSurface(const G4OpticalSurface& right);
  G4OpticalSurface& operator=(const G4OpticalSurface& right);
 
  G4bool operator==(const G4OpticalSurface& right) const;
  G4bool operator!=(const G4OpticalSurface& right) const;
 
  G4OpticalSurface(const G4String& name, G4OpticalSurfaceModel model = glisur,
                   G4OpticalSurfaceFinish finish = polished,
                   G4SurfaceType type            = dielectric_dielectric,
                   G4double value                = 1.0);
  // Constructor of an optical surface object.
 
  ~G4OpticalSurface() override;
 
  void SetType(const G4SurfaceType& type) override;
 
  inline G4OpticalSurfaceFinish GetFinish() const { return theFinish; }
  // Returns the optical surface finish.
  void SetFinish(const G4OpticalSurfaceFinish);
  // Sets the optical surface finish.
 
  inline G4OpticalSurfaceModel GetModel() const { return theModel; }
  // Returns the optical surface model used.
  inline void SetModel(const G4OpticalSurfaceModel model) { theModel = model; }
  // Sets the optical surface model to be followed.
 
  inline G4double GetSigmaAlpha() const { return sigma_alpha; }
  // Returns an unified model surface parameter.
  inline void SetSigmaAlpha(const G4double s_a) { sigma_alpha = s_a; }
  // Sets an unified model surface parameter.
 
  G4double GetPolish() const { return polish; }
  // Returns the optical surface polish type.
  inline void SetPolish(const G4double plsh) { polish = plsh; }
  // Sets the optical surface polish type.
 
  inline G4MaterialPropertiesTable* GetMaterialPropertiesTable() const
  {
    return theMaterialPropertiesTable;
  }
  // Retrieves the pointer of the G4MaterialPropertiesTable
  // attached to optical surface.
 
  inline void SetMaterialPropertiesTable(G4MaterialPropertiesTable* anMPT)
  {
    theMaterialPropertiesTable = anMPT;
  }
  // Attaches a G4MaterialPropertiesTable to the optical surface.
 
  void DumpInfo() const;
  // Prints information about the optical surface.
 
  void ReadDataFile();
  // call the correct ReadXXXFile
 
  void ReadCompressedFile(const G4String&, std::istringstream&);
  // read a zlib-compressed file
 
  void ReadLUTFile();
  // Method to read the Look-Up-Table into array AngularDistribution
 
  inline G4double GetAngularDistributionValue(G4int, G4int, G4int);
 
  // for DAVIS model
 
  inline G4double GetAngularDistributionValueLUT(G4int);
  // Returns the AngularDistributionValue
 
  void ReadLUTDAVISFile();
  // Method to read the Davis Look-Up-Table into array AngularDistribution
 
  void ReadReflectivityLUTFile();
  // Method to read the Look-Up-Table for reflectivity
 
  inline G4double GetReflectivityLUTValue(G4int);
  // Returns the reflectivity value from the Davis Look-Up-Table
 
  G4int GetInmax() const;
  // Returns the number of lines in the Davis Look-Up-Table
 
  G4int GetLUTbins() const;
  // Returns the number of probability values per incidentangle
 
  G4int GetRefMax() const;
  // Returns the number of reflectivity values per angle
 
  G4int GetThetaIndexMax() const;
  G4int GetPhiIndexMax() const;
 
  void ReadDichroicFile();
  // Method to read the dichroic surface data file into Dichroic
 
  inline G4Physics2DVector* GetDichroicVector();
 
 private:
  G4OpticalSurfaceModel theModel;    // Surface model
  G4OpticalSurfaceFinish theFinish;  // Surface finish
 
  G4double sigma_alpha;  // The sigma of micro-facet polar angle
  G4double polish;       // Polish parameter in glisur model
 
  G4MaterialPropertiesTable* theMaterialPropertiesTable;
 
  static const G4int incidentIndexMax = 91;
  static const G4int thetaIndexMax    = 45;
  static const G4int phiIndexMax      = 37;
 
  G4float* AngularDistribution;
  G4Physics2DVector* DichroicVector;
 
  // for DAVIS model
  static const G4int indexmax = 7280001;  // 3640001;
  static const G4int RefMax   = 90;
  static const G4int LUTbins  = 20000;
  G4float* AngularDistributionLUT;
  G4float* Reflectivity;
};
 
////////////////////
// Inline methods
////////////////////
 
inline G4double G4OpticalSurface::GetAngularDistributionValue(
  G4int angleIncident, G4int thetaIndex, G4int phiIndex)
{
  G4int product = angleIncident * thetaIndex * phiIndex;
  if(product < 0 || product >= incidentIndexMax * thetaIndexMax * phiIndexMax)
  {
    G4ExceptionDescription ed;
    ed << "Index angleIncident: " << angleIncident
       << " thetaIndex: " << thetaIndex << " phiIndex: " << phiIndex
       << " out of range!";
    G4Exception("G4OpticalSurface::GetAngularDistributionValue", "mat317",
                FatalException, ed);
    return 0.;
  }
  return (G4double)
    AngularDistribution[angleIncident + thetaIndex * incidentIndexMax +
                        phiIndex * thetaIndexMax * incidentIndexMax];
}
 
inline G4double G4OpticalSurface::GetAngularDistributionValueLUT(G4int i)
{
  if(i < 0 || i >= indexmax)
  {
    G4ExceptionDescription ed;
    ed << "Index " << i << " out of range!";
    G4Exception("G4OpticalSurface::GetAngularDistributionValueLUT", "mat318",
                FatalException, ed);
    return 0.;
  }
  return (G4double) AngularDistributionLUT[i];
}
 
inline G4double G4OpticalSurface::GetReflectivityLUTValue(G4int i)
{
  if(i < 0 || i >= RefMax)
  {
    G4ExceptionDescription ed;
    ed << "Index " << i << " out of range!";
    G4Exception("G4OpticalSurface::GetReflectivityLUTValue", "mat319",
                FatalException, ed);
    return 0.;
  }
  return (G4double) Reflectivity[i];
}
 
inline G4Physics2DVector* G4OpticalSurface::GetDichroicVector()
{
  return DichroicVector;
}
 
#endif /* G4OpticalSurface_h */