Garfield::OpticalData Class Reference

Photoabsorption cross-sections for some gases. More...

#include <OpticalData.hh>

Public Member Functions
	OpticalData ()=default
	Constructor.
	~OpticalData ()=default
	Destructor.

Static Public Member Functions
static bool	IsAvailable (const std::string &material)
	Check whether optical data have been implemented for a given gas.
static bool	PhotoabsorptionCrossSection (const std::string &material, const double energy, double &cs, double &eta)
	Photo-absorption cross-section and ionisation yield at a given energy.
static double	PhotoabsorptionCrossSection (const std::string &material, const double energy)
	Photo-absorption cross-section at a given energy.
static double	PhotoionisationYield (const std::string &material, const double energy)
	Photo-ionisation yield at a given energy.

Detailed Description

Photoabsorption cross-sections for some gases.

Definition at line 11 of file OpticalData.hh.

Constructor & Destructor Documentation

OpticalData()

Garfield::OpticalData::OpticalData ( )

default

Constructor.

~OpticalData()

Garfield::OpticalData::~OpticalData ( )

default

Destructor.

Member Function Documentation

IsAvailable()

bool Garfield::OpticalData::IsAvailable ( const std::string & material )

static

Check whether optical data have been implemented for a given gas.

Definition at line 38 of file OpticalData.cc.

                                                       {
  std::array<std::string, 9> materials = {
      {"Ne", "Ar", "CO2", "CH4", "C2H6", "nC4H10", "C2H2", "CF4", "N2"}};
  auto result = std::find(materials.begin(), materials.end(), material);
  return result != materials.end();
}

Referenced by Garfield::MediumGas::GetPhotoAbsorptionCrossSection().

PhotoabsorptionCrossSection() [1/2]

double Garfield::OpticalData::PhotoabsorptionCrossSection ( const std::string & material, const double energy )

static

Photo-absorption cross-section at a given energy.

Definition at line 61 of file OpticalData.cc.

                                                                {
  double cs = 0., eta = 0.;
  if (!PhotoabsorptionCrossSection(material, e, cs, eta)) return 0.;
  return cs;
}

PhotoabsorptionCrossSection() [2/2]

bool Garfield::OpticalData::PhotoabsorptionCrossSection ( const std::string & material, const double energy, double & cs, double & eta )

static

Photo-absorption cross-section and ionisation yield at a given energy.

Definition at line 45 of file OpticalData.cc.

                                                           {
  cs = eta = 0.;
  if (material == "Ne") return PhotoAbsorptionCsNeon(e, cs, eta);
  if (material == "Ar") return PhotoAbsorptionCsArgon(e, cs, eta);
  if (material == "CO2") return PhotoAbsorptionCsCO2(e, cs, eta);
  if (material == "CH4") return PhotoAbsorptionCsMethane(e, cs, eta);
  if (material == "C2H6") return PhotoAbsorptionCsEthane(e, cs, eta);
  if (material == "nC4H10") return PhotoAbsorptionCsButane(e, cs, eta);
  if (material == "C2H2") return PhotoAbsorptionCsAcetylene(e, cs, eta);
  if (material == "CF4") return PhotoAbsorptionCsCF4(e, cs, eta);
  if (material == "N2") return PhotoAbsorptionCsNitrogen(e, cs, eta);
  return false;
}

Referenced by Garfield::MediumGas::GetPhotoAbsorptionCrossSection(), PhotoabsorptionCrossSection(), and PhotoionisationYield().

PhotoionisationYield()

double Garfield::OpticalData::PhotoionisationYield ( const std::string & material, const double energy )

static

Photo-ionisation yield at a given energy.

Definition at line 68 of file OpticalData.cc.

                                                         {
  double cs = 0., eta = 0.;
  if (!PhotoabsorptionCrossSection(material, e, cs, eta)) return 0.;
  return eta;
}

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The documentation for this class was generated from the following files:

• OpticalData.hh
• OpticalData.cc