HcalPulseContainmentCorrection Class Reference

#include <HcalPulseContainmentCorrection.h>

Public Member Functions
double	fractionContained (double fc_ampl) const
double	getCorrection (double fc_ampl) const
	HcalPulseContainmentCorrection (int num_samples, float fixedphase_ns, float max_fracerror)
	Generate energy correction factors based on a predetermined phase of the hit + time slew. More...
	HcalPulseContainmentCorrection (const HcalPulseShape *shape, int num_samples, float fixedphase_ns, float max_fracerror)

Private Attributes
std::map< double, double >	mCorFactors_

Detailed Description

Amplitude correction for pulse containment in time. Currently only for HPD pulse shape.

Author

P. Dudero - Minnesota

Definition at line 14 of file HcalPulseContainmentCorrection.h.

Constructor & Destructor Documentation

HcalPulseContainmentCorrection::HcalPulseContainmentCorrection	(	int	num_samples,
		float	fixedphase_ns,
		float	max_fracerror
	)

Generate energy correction factors based on a predetermined phase of the hit + time slew.

Definition at line 17 of file HcalPulseContainmentCorrection.cc.

References mCorFactors_.

{
  HcalPulseContainmentAlgo corFalgo(num_samples, (double)fixedphase_ns);

  // Generate lookup map for the correction function, never exceeding
  // a maximum fractional error for lookups.
  //
  //  static const double max_recofc = 5000.0f;   // HPD,  
  //                      max_recofc = 200000.0f; // SiPMs  
  genlkupmap<HcalPulseContainmentAlgo> (1.0, 200000.0f,  // generation domain
                                     max_fracerror,     // maximum fractional error
                                     1.0,   // min_xstep = minimum true fC increment
                                     corFalgo,
                                     mCorFactors_);     // return lookup map
}

HcalPulseContainmentCorrection::HcalPulseContainmentCorrection	(	const HcalPulseShape *	shape,
		int	num_samples,
		float	fixedphase_ns,
		float	max_fracerror
	)

Definition at line 36 of file HcalPulseContainmentCorrection.cc.

References mCorFactors_.

{
  HcalPulseContainmentAlgo corFalgo(shape, num_samples, (double)fixedphase_ns);
  genlkupmap<HcalPulseContainmentAlgo> (1.0, 200000.0f,  // generation domain
                                     max_fracerror,     // maximum fractional error
                                     1.0,   // min_xstep = minimum true fC increment
                                     corFalgo,
                                     mCorFactors_);     // return lookup map
}

Member Function Documentation

double HcalPulseContainmentCorrection::fractionContained ( double  fc_ampl ) const

inline

Definition at line 24 of file HcalPulseContainmentCorrection.h.

References getCorrection().

{ return 1.0/this->getCorrection(fc_ampl); }

double HcalPulseContainmentCorrection::getCorrection

(

double

fc_ampl

)

const

Definition at line 50 of file HcalPulseContainmentCorrection.cc.

References gather_cfg::cout, mCorFactors_, and alignCSCRings::s.

Referenced by JetReCalibrator.JetReCalibrator::correct(), fractionContained(), ZdcSimpleRecAlgoImpl::reco1(), ZdcSimpleRecAlgoImpl::reco2(), and HcalSimpleRecAlgoImpl::removePileup().

{
  double correction;

  std::map<double,double>::const_iterator fcupper,fclower;

  fcupper = mCorFactors_.upper_bound(fc_ampl);
  fclower = fcupper;
  fclower--;

  if (fcupper == mCorFactors_.end()) {
    correction = fclower->second;
  }
  else if (fcupper == mCorFactors_.begin()) {
    correction = fcupper->second;
  }
  else {
    if (fabs(fclower->first - fc_ampl) <
    fabs(fcupper->first - fc_ampl) )
      correction = fclower->second;
    else
      correction = fcupper->second;
  }

#if 0
  char s[80];
  sprintf (s, "%7.1f (%8.5f %8.5f) (%8.5f %8.5f) %8.5f",
       fc_ampl,
       fclower->first, fclower->second,
       fcupper->first, fcupper->second,
       correction);
  cout << s << endl;
#endif

  return correction;
}

Member Data Documentation

std::map<double,double> HcalPulseContainmentCorrection::mCorFactors_

private

Definition at line 27 of file HcalPulseContainmentCorrection.h.

Referenced by getCorrection(), and HcalPulseContainmentCorrection().