KM3NET_HIGHQE Namespace Reference

Name space for KM3NeT with high-QE PMTs. More...

Functions
const JK40Rates &	getK40Rates ()
	Get K40 rates. More...
double	getAmbientPressure ()
	Get ambient pressure. More...
double	getPhotocathodeArea ()
	Get photo-cathode area of PMT. More...
double	getAbsorptionLength (const double lambda)
	Get absorption length. More...
double	getScatteringLength (const double lambda)
	Get scattering length. More...
double	getScatteringProbability (const double x)
	Function to describe light scattering in water. More...
double	getAngularAcceptance (const double x)
	Get angular acceptance of PMT. More...
double	getQE (const double lambda)
	Get quantum efficiency of KM3NeT PMT. More...
double	getPhotocathodeArea2D (const double x, const double lambda)
	Get effective photo-cathode area of PMT. More...

Detailed Description

Name space for KM3NeT with high-QE PMTs.

Function Documentation

const JK40Rates& KM3NET_HIGHQE::getK40Rates ( )

inline

Get K40 rates.

This method returns an object with default values.
The singles and multiples rates are based on Analysis e-log entry 575.
They have been scaled with the outputs of JRateK40.cc and JMultiplicityK40.cc for the standard and high-QE PMT, respectively using script JPrintK40Rates.sh (see GIT issue 351).

Returns

K40 rates [Hz]

Definition at line 345 of file KM3NeT.hh.

  {
    static const JK40Rates rates_Hz(8529, { 1014.4, 103.77,  15.44,   1.44});

    return rates_Hz;
  }

double KM3NET_HIGHQE::getAmbientPressure ( )

inline

Get ambient pressure.

Returns

pressure [Atm]

Definition at line 358 of file KM3NeT.hh.

  {
    return KM3NET::getAmbientPressure();
  }

double KM3NET_HIGHQE::getPhotocathodeArea ( )

inline

Get photo-cathode area of PMT.

Returns

photo-cathode area [m^2]

Definition at line 369 of file KM3NeT.hh.

  {
    return KM3NET::getPhotocathodeArea();
  }

double KM3NET_HIGHQE::getAbsorptionLength ( const double  lambda )

inline

Get absorption length.

Parameters

lambda

wavelength of light [nm]

Returns

absorption length [m]

Definition at line 381 of file KM3NeT.hh.

  {
    return KM3NET::getAbsorptionLength(lambda);
  }

double KM3NET_HIGHQE::getScatteringLength ( const double  lambda )

inline

Get scattering length.

Parameters

lambda

wavelength of light [nm]

Returns

scattering length [m]

Definition at line 393 of file KM3NeT.hh.

  {
    return KM3NET::getScatteringLength(lambda);
  }

double KM3NET_HIGHQE::getScatteringProbability ( const double  x )

inline

Function to describe light scattering in water.

Parameters

x	cosine scattering angle

Returns

probability

Definition at line 405 of file KM3NeT.hh.

  {
    return KM3NET::getScatteringProbability(x);
  }

double KM3NET_HIGHQE::getAngularAcceptance ( const double  x )

inline

Get angular acceptance of PMT.

Parameters

x	cosine of angle of incidence

Returns

probability

Definition at line 417 of file KM3NeT.hh.

  {
    return KM3NET::getAngularAcceptance(x);
  }

double KM3NET_HIGHQE::getQE ( const double  lambda )

inline

Get quantum efficiency of KM3NeT PMT.

Note that the QE includes absorption in glass and gel.

Parameters

lambda

wavelength of photon [nm]

Returns

quantum efficiency

Definition at line 431 of file KM3NeT.hh.

  {
    static JGridPolint1Function1D_t f1;
    static const double cola    = 0.95;     // collection efficiency

    if (f1.empty()) {

      f1[280] = 0.0;
      f1[285] = 0.0;
      f1[290] = 0.0;
      f1[295] = 0.2;
      f1[300] = 0.3;
      f1[305] = 2.3;
      f1[310] = 3.9;
      f1[315] = 9.1;
      f1[320] = 13.7;
      f1[325] = 19.5;
      f1[330] = 25.2;
      f1[335] = 28.9;
      f1[340] = 33.0;
      f1[345] = 34.6;
      f1[350] = 36.6;
      f1[355] = 37.5;
      f1[360] = 38.3;
      f1[365] = 38.2;
      f1[370] = 37.8;
      f1[375] = 36.8;
      f1[380] = 36.3;
      f1[385] = 36.8;
      f1[390] = 37.3;
      f1[395] = 36.6;
      f1[400] = 36.5;
      f1[405] = 36.2;
      f1[410] = 35.5;
      f1[415] = 35.2;
      f1[420] = 34.7;
      f1[425] = 34.1;
      f1[430] = 33.7;
      f1[435] = 33.2;
      f1[440] = 32.6;
      f1[445] = 31.8;
      f1[450] = 31.1;
      f1[455] = 30.1;
      f1[460] = 29.1;
      f1[465] = 28.4;
      f1[470] = 27.6;
      f1[475] = 27.0;
      f1[480] = 26.2;
      f1[485] = 25.8;
      f1[490] = 25.2;
      f1[495] = 24.0;
      f1[500] = 22.8;
      f1[505] = 20.9;
      f1[510] = 19.1;
      f1[515] = 17.1;
      f1[520] = 15.3;
      f1[525] = 14.0;
      f1[530] = 12.9;
      f1[535] = 12.3;
      f1[540] = 11.6;
      f1[545] = 11.3;
      f1[550] = 10.7;
      f1[555] = 10.3;
      f1[560] = 9.6;
      f1[565] = 9.1;
      f1[570] = 8.6;
      f1[575] = 8.0;
      f1[580] = 7.3;
      f1[585] = 6.6;
      f1[590] = 5.9;
      f1[595] = 5.3;
      f1[600] = 4.7;
      f1[605] = 4.0;
      f1[610] = 3.4;
      f1[615] = 2.9;
      f1[620] = 2.5;
      f1[625] = 2.1;
      f1[630] = 1.6;
      f1[635] = 1.3;
      f1[640] = 1.0;
      f1[645] = 0.8;
      f1[650] = 0.6;
      f1[655] = 0.5;
      f1[660] = 0.4;
      f1[665] = 0.3;
      f1[670] = 0.2;
      f1[675] = 0.1;
      f1[680] = 0.1;
      f1[685] = 0.1;
      f1[690] = 0.0;
      f1[695] = 0.0;
      f1[700] = 0.0;
      f1[705] = 0.0;

      f1.compile();

      f1.setExceptionHandler(new JGridPolint1Function1D_t::JDefaultResult(0.0));
    }

    return f1(lambda) * 0.01 * cola;
  }

double KM3NET_HIGHQE::getPhotocathodeArea2D ( const double  x, const double  lambda  )

inline

Get effective photo-cathode area of PMT.

Parameters

x	cosine of angle of incidence
lambda	wavelength of photon [nm]

Returns

photo-cathode area [m^2]

Definition at line 541 of file KM3NeT.hh.

  {
    return getPhotocathodeArea() * getQE(lambda) * getAngularAcceptance(x);
  }