HcalTimeSlew Class Reference

#include <HcalTimeSlew.h>

Classes
class	HcalTimeSlewM2Parameters
class	HcalTimeSlewM3Parameters

Public Types
enum	BiasSetting { Slow =0, Medium =1, Fast =2 }
enum	ParaSource { TestStand =0, Data =1, MC =2, HBHE =3 }

Public Member Functions
void	addM2ParameterSet (float tzero, float slope, float tmax)
void	addM3ParameterSet (double cap, double tspar0, double tspar1, double tspar2, double tspar0_siPM, double tspar1_siPM, double tspar2_siPM)
float	delay (float fC, BiasSetting bias=Medium) const
	Returns the amount (ns) by which a pulse of the given number of fC will be delayed by the timeslew effect, for the specified bias setting. More...
double	delay (double fC, ParaSource source=HBHE, BiasSetting bias=Medium, bool isHPD=true) const
	HcalTimeSlew ()
	~HcalTimeSlew ()

Private Attributes
std::vector< HcalTimeSlewM2Parameters >	parametersM2_
std::vector< HcalTimeSlewM3Parameters >	parametersM3_

Detailed Description

Provides pulse delay as a function of amplitude for three choices of QIE bias setting. The "Medium" setting is used in HB and HE, while the "Slow" (and lower noise) setting is used in HO. All data taken from bench measurements of the QIE and plotted in Physics TDR Vol 1.

Not to be used for HF at this time (unlikely to have much effect)

author J. Mans - Minnesota 2017 C. Madrid - Baylor

Definition at line 19 of file HcalTimeSlew.h.

Member Enumeration Documentation

enum HcalTimeSlew::BiasSetting

Enumerator
Slow
Medium
Fast

Definition at line 52 of file HcalTimeSlew.h.

{ Slow=0, Medium=1, Fast=2 };

enum HcalTimeSlew::ParaSource

Enumerator
TestStand
Data
MC
HBHE

Definition at line 51 of file HcalTimeSlew.h.

{ TestStand=0, Data=1, MC=2, HBHE=3 };

Constructor & Destructor Documentation

HcalTimeSlew::HcalTimeSlew ( )

inline

Definition at line 45 of file HcalTimeSlew.h.

{};

HcalTimeSlew::~HcalTimeSlew ( )

inline

Definition at line 46 of file HcalTimeSlew.h.

References addM2ParameterSet(), addM3ParameterSet(), HcalTimeSlew::HcalTimeSlewM2Parameters::slope, HcalTimeSlew::HcalTimeSlewM2Parameters::tmax, and HcalTimeSlew::HcalTimeSlewM2Parameters::tzero.

{}

Member Function Documentation

void HcalTimeSlew::addM2ParameterSet	(	float	tzero,
		float	slope,
		float	tmax
	)

Definition at line 5 of file HcalTimeSlew.cc.

References parametersM2_.

Referenced by ~HcalTimeSlew().

                                                                        {
  parametersM2_.emplace_back(tzero,slope,tmax);
}

void HcalTimeSlew::addM3ParameterSet	(	double	cap,
		double	tspar0,
		double	tspar1,
		double	tspar2,
		double	tspar0_siPM,
		double	tspar1_siPM,
		double	tspar2_siPM
	)

Definition at line 9 of file HcalTimeSlew.cc.

References parametersM3_.

Referenced by ~HcalTimeSlew().

                                                                                                                                                       {
  parametersM3_.emplace_back(cap, tspar0, tspar1, tspar2, tspar0_siPM, tspar1_siPM, tspar2_siPM);
}

float HcalTimeSlew::delay	(	float	fC,
		BiasSetting	bias = Medium
	)		const

Returns the amount (ns) by which a pulse of the given number of fC will be delayed by the timeslew effect, for the specified bias setting.

Definition at line 14 of file HcalTimeSlew.cc.

References cmsBatch::log, parametersM2_, and tmax.

Referenced by HcalPulseContainmentAlgo::calcpair(), HcalTimeSlewSim::delay(), delay(), SimpleHBHEPhase1Algo::m0Time(), HcalDeterministicFit::phase1Apply(), PulseShapeFitOOTPileupCorrection::pulseShapeFit(), HcalSimpleRecAlgoImpl::reco(), PulseShapeFitOOTPileupCorrection::setPulseShapeTemplate(), MahiFit::setPulseShapeTemplate(), and MahiFit::updatePulseShape().

                                                          {
  float rawDelay = parametersM2_[bias].tzero + parametersM2_[bias].slope*std::log(fC);
  return (rawDelay < 0)?(0):((rawDelay > parametersM2_[bias].tmax)?(parametersM2_[bias].tmax):(rawDelay));
}

double HcalTimeSlew::delay	(	double	fC,
		ParaSource	source = HBHE,
		BiasSetting	bias = Medium,
		bool	isHPD = true
	)		const

Definition at line 20 of file HcalTimeSlew.cc.

References delay(), cmsBatch::log, parametersM3_, source, and TestStand.

                                                                                           {
  double rawDelay = 0.0;
  if(source == TestStand){
    return HcalTimeSlew::delay(fC, bias);
  }
  else if(isHPD){
    rawDelay = std::fmin( parametersM3_[source].cap, 
              parametersM3_[source].tspar0+parametersM3_[source].tspar1*std::log(fC+parametersM3_[source].tspar2 ));
  }
  else{
    rawDelay = parametersM3_[source].cap+parametersM3_[source].tspar0_siPM;  
  }
  return rawDelay;
}

Member Data Documentation

std::vector<HcalTimeSlewM2Parameters> HcalTimeSlew::parametersM2_

private

Definition at line 60 of file HcalTimeSlew.h.

Referenced by addM2ParameterSet(), and delay().

std::vector<HcalTimeSlewM3Parameters> HcalTimeSlew::parametersM3_

private

Definition at line 61 of file HcalTimeSlew.h.

Referenced by addM3ParameterSet(), and delay().