HGCFEElectronics< DFr > Class Template Reference

models the behavior of the front-end electronics More...

#include <HGCFEElectronics.h>

Public Types
enum	HGCFEElectronicsFirmwareVersion { TRIVIAL, SIMPLE, WITHTOT }
enum	HGCFEElectronicsTOTMode { WEIGHTEDBYE, SIMPLETHRESHOLD }

Public Member Functions
float	getADClsb ()
	returns the LSB currently configured More...
float	getADCThreshold ()
hgc_digi::FEADCPulseShape &	getDefaultADCPulse ()
	getter for the default ADC pulse configured by python More...
float	getMaxADC ()
float	getMaxTDC ()
int	getTargetMipValue ()
std::array< float, 3 >	getTDCForToAOnset ()
float	getTDClsb ()
float	getTDCOnset ()
float	getTimeJitter (float totalCharge, int thickness)
	HGCFEElectronics (const edm::ParameterSet &ps)
	CTOR. More...
void	runShaper (DFr &dataFrame, hgc::HGCSimHitData &chargeColl, hgc::HGCSimHitData &toa, const hgc_digi::FEADCPulseShape &adcPulse, CLHEP::HepRandomEngine *engine, uint32_t thrADC=0, float lsbADC=-1, uint32_t gainIdx=0, float maxADC=-1, int thickness=1, float tdcOnsetAuto=-1)
	switches according to the firmware version More...
void	runShaper (DFr &dataFrame, hgc::HGCSimHitData &chargeColl, hgc::HGCSimHitData &toa, CLHEP::HepRandomEngine *engine, uint32_t thrADC=0, float lsbADC=-1, uint32_t gainIdx=0, float maxADC=-1, int thickness=1)
void	runShaperWithToT (DFr &dataFrame, hgc::HGCSimHitData &chargeColl, hgc::HGCSimHitData &toa, CLHEP::HepRandomEngine *engine, uint32_t thrADC, float lsbADC, uint32_t gainIdx, float maxADC, int thickness, float tdcOnsetAuto, const hgc_digi::FEADCPulseShape &adcPulse)
	implements pulse shape and switch to time over threshold including deadtime More...
void	runShaperWithToT (DFr &dataFrame, hgc::HGCSimHitData &chargeColl, hgc::HGCSimHitData &toa, CLHEP::HepRandomEngine *engine, uint32_t thrADC, float lsbADC, uint32_t gainIdx, float maxADC, int thickness, float tdcOnsetAuto)
void	runSimpleShaper (DFr &dataFrame, hgc::HGCSimHitData &chargeColl, uint32_t thrADC, float lsbADC, uint32_t gainIdx, float maxADC, const hgc_digi::FEADCPulseShape &adcPulse)
	applies a shape to each time sample and propagates the tails to the subsequent time samples More...
void	runSimpleShaper (DFr &dataFrame, hgc::HGCSimHitData &chargeColl, uint32_t thrADC, float lsbADC, uint32_t gainIdx, float maxADC)
void	runTrivialShaper (DFr &dataFrame, hgc::HGCSimHitData &chargeColl, uint32_t thrADC, float lsbADC, uint32_t gainIdx, float maxADC)
	converts charge to digis without pulse shape More...
void	setADClsb (float newLSB)
void	SetNoiseValues (const std::vector< float > &noise_fC)
void	setTDCfsc (float newTDCfsc)
uint32_t	toaMode () const
	returns how ToT will be computed More...
	~HGCFEElectronics ()
	DTOR. More...

Private Attributes
float	adcLSB_fC_
hgc_digi::FEADCPulseShape	adcPulse_
float	adcSaturation_fC_
float	adcThreshold_fC_
std::array< bool, hgc::nSamples >	busyFlags
uint32_t	fwVersion_
std::array< float, 3 >	jitterConstant2_ns_
std::array< float, 3 >	jitterNoise2_ns_
hgc::HGCSimHitData	newCharge
std::vector< float >	noise_fC_
hgc_digi::FEADCPulseShape	pulseAvgT_
uint32_t	targetMIPvalue_ADC_
std::vector< float >	tdcChargeDrainParameterisation_
std::array< float, 3 >	tdcForToAOnset_fC_
float	tdcLSB_fC_
uint32_t	tdcNbits_
float	tdcOnset_fC_
float	tdcResolutionInNs_
float	tdcSaturation_fC_
bool	thresholdFollowsMIP_
std::array< bool, hgc::nSamples >	toaFlags
hgc::HGCSimHitData	toaFromToT
float	toaLSB_ns_
uint32_t	toaMode_
std::array< bool, hgc::nSamples >	totFlags

Detailed Description

template<class DFr>
class HGCFEElectronics< DFr >

models the behavior of the front-end electronics

Definition at line 24 of file HGCFEElectronics.h.

Member Enumeration Documentation

HGCFEElectronicsFirmwareVersion

template<class DFr >

enum HGCFEElectronics::HGCFEElectronicsFirmwareVersion

Enumerator
TRIVIAL
SIMPLE
WITHTOT

Definition at line 26 of file HGCFEElectronics.h.

{ TRIVIAL, SIMPLE, WITHTOT };

HGCFEElectronicsTOTMode

template<class DFr >

enum HGCFEElectronics::HGCFEElectronicsTOTMode

Enumerator
WEIGHTEDBYE
SIMPLETHRESHOLD

Definition at line 27 of file HGCFEElectronics.h.

{ WEIGHTEDBYE, SIMPLETHRESHOLD };

Constructor & Destructor Documentation

HGCFEElectronics()

template<class DFr >

HGCFEElectronics< DFr >::HGCFEElectronics

(

const edm::ParameterSet &

ps

)

CTOR.

Definition at line 12 of file HGCFEElectronics.cc.

References edm::ParameterSet::getParameter().

    : fwVersion_{ps.getParameter<uint32_t>("fwVersion")},
      adcPulse_{},
      pulseAvgT_{},
      tdcForToAOnset_fC_{},
      adcSaturation_fC_{-1.0},
      adcLSB_fC_{},
      tdcLSB_fC_{},
      tdcSaturation_fC_{-1.0},
      adcThreshold_fC_{},
      tdcOnset_fC_{},
      toaLSB_ns_{},
      tdcResolutionInNs_{1e-9},  // set time resolution very small by default
      targetMIPvalue_ADC_{},
      jitterNoise2_ns_{},
      jitterConstant2_ns_{},
      noise_fC_{},
      toaMode_(WEIGHTEDBYE) {
  edm::LogVerbatim("HGCFE") << "[HGCFEElectronics] running with version " << fwVersion_ << std::endl;
  if (ps.exists("adcPulse")) {
    auto temp = ps.getParameter<std::vector<double> >("adcPulse");
    for (unsigned i = 0; i < temp.size(); ++i) {
      adcPulse_[i] = (float)temp[i];
    }
    // normalize adc pulse
    for (unsigned i = 0; i < adcPulse_.size(); ++i) {
      adcPulse_[i] = adcPulse_[i] / adcPulse_[2];
    }
    temp = ps.getParameter<std::vector<double> >("pulseAvgT");
    for (unsigned i = 0; i < temp.size(); ++i) {
      pulseAvgT_[i] = (float)temp[i];
    }
  }
  if (ps.exists("adcNbits")) {
    uint32_t adcNbits = ps.getParameter<uint32_t>("adcNbits");
    adcSaturation_fC_ = ps.getParameter<double>("adcSaturation_fC");
    adcLSB_fC_ = adcSaturation_fC_ / pow(2., adcNbits);
    edm::LogVerbatim("HGCFE") << "[HGCFEElectronics] " << adcNbits << " bit ADC defined"
                              << " with LSB=" << adcLSB_fC_ << " saturation to occur @ " << adcSaturation_fC_
                              << std::endl;
  }

  if (ps.exists("tdcNbits")) {
    tdcNbits_ = ps.getParameter<uint32_t>("tdcNbits");
    setTDCfsc(ps.getParameter<double>("tdcSaturation_fC"));
    edm::LogVerbatim("HGCFE") << "[HGCFEElectronics] " << tdcNbits_ << " bit TDC defined with LSB=" << tdcLSB_fC_
                              << " saturation to occur @ " << tdcSaturation_fC_
                              << " (NB lowered by 1 part in a million)" << std::endl;
  }
  if (ps.exists("targetMIPvalue_ADC"))
    targetMIPvalue_ADC_ = ps.getParameter<uint32_t>("targetMIPvalue_ADC");
  if (ps.exists("adcThreshold_fC"))
    adcThreshold_fC_ = ps.getParameter<double>("adcThreshold_fC");
  if (ps.exists("tdcOnset_fC"))
    tdcOnset_fC_ = ps.getParameter<double>("tdcOnset_fC");
  if (ps.exists("tdcForToAOnset_fC")) {
    auto temp = ps.getParameter<std::vector<double> >("tdcForToAOnset_fC");
    if (temp.size() == tdcForToAOnset_fC_.size()) {
      std::copy_n(temp.begin(), temp.size(), tdcForToAOnset_fC_.begin());
    } else {
      throw cms::Exception("BadConfiguration") << " HGCFEElectronics wrong size for ToA thresholds ";
    }
  }
  if (ps.exists("toaLSB_ns"))
    toaLSB_ns_ = ps.getParameter<double>("toaLSB_ns");
  if (ps.exists("tdcChargeDrainParameterisation")) {
    for (auto val : ps.getParameter<std::vector<double> >("tdcChargeDrainParameterisation")) {
      tdcChargeDrainParameterisation_.push_back((float)val);
    }
  }
  if (ps.exists("tdcResolutionInPs"))
    tdcResolutionInNs_ = ps.getParameter<double>("tdcResolutionInPs") * 1e-3;  // convert to ns
  if (ps.exists("toaMode"))
    toaMode_ = ps.getParameter<uint32_t>("toaMode");

  if (ps.exists("jitterNoise_ns")) {
    auto temp = ps.getParameter<std::vector<double> >("jitterNoise_ns");
    if (temp.size() == jitterNoise2_ns_.size()) {
      std::copy_n(temp.begin(), temp.size(), jitterNoise2_ns_.begin());
    } else {
      throw cms::Exception("BadConfiguration") << " HGCFEElectronics wrong size for ToA jitterNoise ";
    }
  }
  if (ps.exists("jitterConstant_ns")) {
    auto temp = ps.getParameter<std::vector<double> >("jitterConstant_ns");
    if (temp.size() == jitterConstant2_ns_.size()) {
      std::copy_n(temp.begin(), temp.size(), jitterConstant2_ns_.begin());
    } else {
      throw cms::Exception("BadConfiguration") << " HGCFEElectronics wrong size for ToA jitterConstant ";
    }
  }
}

~HGCFEElectronics()

template<class DFr >

HGCFEElectronics< DFr >::~HGCFEElectronics ( )

inline

DTOR.

Definition at line 170 of file HGCFEElectronics.h.

{}

Member Function Documentation

getADClsb()

template<class DFr >

float HGCFEElectronics< DFr >::getADClsb ( )

inline

returns the LSB currently configured

Definition at line 91 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::adcLSB_fC_.

{ return adcLSB_fC_; }

getADCThreshold()

template<class DFr >

float HGCFEElectronics< DFr >::getADCThreshold ( )

inline

Definition at line 94 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::adcThreshold_fC_.

{ return adcThreshold_fC_; }

getDefaultADCPulse()

template<class DFr >

hgc_digi::FEADCPulseShape& HGCFEElectronics< DFr >::getDefaultADCPulse ( )

inline

getter for the default ADC pulse configured by python

Definition at line 165 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::adcPulse_.

{ return adcPulse_; }

getMaxADC()

template<class DFr >

float HGCFEElectronics< DFr >::getMaxADC ( )

inline

Definition at line 95 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::adcSaturation_fC_.

{ return adcSaturation_fC_; }

getMaxTDC()

template<class DFr >

float HGCFEElectronics< DFr >::getMaxTDC ( )

inline

Definition at line 96 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::tdcSaturation_fC_.

{ return tdcSaturation_fC_; }

getTargetMipValue()

template<class DFr >

int HGCFEElectronics< DFr >::getTargetMipValue ( )

inline

Definition at line 93 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::targetMIPvalue_ADC_.

{ return targetMIPvalue_ADC_; }

getTDCForToAOnset()

template<class DFr >

std::array<float, 3> HGCFEElectronics< DFr >::getTDCForToAOnset ( )

inline

Definition at line 98 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::tdcForToAOnset_fC_.

{ return tdcForToAOnset_fC_; }

getTDClsb()

template<class DFr >

float HGCFEElectronics< DFr >::getTDClsb ( )

inline

Definition at line 92 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::tdcLSB_fC_.

{ return tdcLSB_fC_; }

getTDCOnset()

template<class DFr >

float HGCFEElectronics< DFr >::getTDCOnset ( )

inline

Definition at line 97 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::tdcOnset_fC_.

{ return tdcOnset_fC_; }

getTimeJitter()

template<class DFr >

float HGCFEElectronics< DFr >::getTimeJitter ( float  totalCharge, int  thickness  )

inline

Definition at line 80 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::jitterConstant2_ns_, HGCFEElectronics< DFr >::jitterNoise2_ns_, HGCFEElectronics< DFr >::noise_fC_, funct::pow(), mathSSE::sqrt(), and Calorimetry_cff::thickness.

                                                        {
    float A2 = jitterNoise2_ns_.at(thickness - 1);
    float C2 = jitterConstant2_ns_.at(thickness - 1);
    float X2 = pow((totalCharge / noise_fC_.at(thickness - 1)), 2.);
    float jitter2 = A2 / X2 + C2;
    return sqrt(jitter2);
  };

runShaper() [1/2]

template<class DFr >

void HGCFEElectronics< DFr >::runShaper ( DFr &  dataFrame, hgc::HGCSimHitData &  chargeColl, hgc::HGCSimHitData &  toa, const hgc_digi::FEADCPulseShape &  adcPulse, CLHEP::HepRandomEngine *  engine, uint32_t  thrADC = 0, float  lsbADC = -1, uint32_t  gainIdx = 0, float  maxADC = -1, int  thickness = 1, float  tdcOnsetAuto = -1  )

inline

switches according to the firmware version

Definition at line 37 of file HGCFEElectronics.h.

References hgceeDigitizer_cfi::adcPulse, HGCFEElectronics< DFr >::fwVersion_, HGCFEElectronics< DFr >::runShaperWithToT(), HGCFEElectronics< DFr >::runSimpleShaper(), HGCFEElectronics< DFr >::runTrivialShaper(), HGCFEElectronics< DFr >::SIMPLE, Calorimetry_cff::thickness, and HGCFEElectronics< DFr >::WITHTOT.

Referenced by HGCFEElectronics< DFr >::runShaper().

                                                 {
    switch (fwVersion_) {
      case SIMPLE: {
        runSimpleShaper(dataFrame, chargeColl, thrADC, lsbADC, gainIdx, maxADC, adcPulse);
        break;
      }
      case WITHTOT: {
        runShaperWithToT(
            dataFrame, chargeColl, toa, engine, thrADC, lsbADC, gainIdx, maxADC, thickness, tdcOnsetAuto, adcPulse);
        break;
      }
      default: {
        runTrivialShaper(dataFrame, chargeColl, thrADC, lsbADC, gainIdx, maxADC);
        break;
      }
    }
  }

runShaper() [2/2]

template<class DFr >

void HGCFEElectronics< DFr >::runShaper ( DFr &  dataFrame, hgc::HGCSimHitData &  chargeColl, hgc::HGCSimHitData &  toa, CLHEP::HepRandomEngine *  engine, uint32_t  thrADC = 0, float  lsbADC = -1, uint32_t  gainIdx = 0, float  maxADC = -1, int  thickness = 1  )

inline

Definition at line 64 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::adcPulse_, HGCFEElectronics< DFr >::runShaper(), and Calorimetry_cff::thickness.

                                           {
    runShaper(dataFrame, chargeColl, toa, adcPulse_, engine, thrADC, lsbADC, gainIdx, maxADC, thickness);
  }

runShaperWithToT() [1/2]

template<class DFr >

void HGCFEElectronics< DFr >::runShaperWithToT	(	DFr &	dataFrame,
		hgc::HGCSimHitData &	chargeColl,
		hgc::HGCSimHitData &	toa,
		CLHEP::HepRandomEngine *	engine,
		uint32_t	thrADC,
		float	lsbADC,
		uint32_t	gainIdx,
		float	maxADC,
		int	thickness,
		float	tdcOnsetAuto,
		const hgc_digi::FEADCPulseShape &	adcPulse
	)

implements pulse shape and switch to time over threshold including deadtime

Definition at line 204 of file HGCFEElectronics.cc.

References gpuClustering::adc, hgceeDigitizer_cfi::adcPulse, ALCARECOTkAlJpsiMuMu_cff::charge, debug, MillePedeFileConverter_cfg::e, f, myMath::fast_expf(), createfilelist::int, SiStripPI::max, SiStripPI::min, mps_check::msg, HGCSample::set(), HGCSample::setToAValid(), HGCalUncalibRecHit_cfi::tdcOnset, and Calorimetry_cff::thickness.

Referenced by HGCFEElectronics< DFr >::runShaper(), and HGCFEElectronics< DFr >::runShaperWithToT().

                                                                                      {
  busyFlags.fill(false);
  totFlags.fill(false);
  toaFlags.fill(false);
  newCharge.fill(0.f);
  toaFromToT.fill(0.f);

#ifdef EDM_ML_DEBUG
  constexpr bool debug_state(true);
#else
  constexpr bool debug_state(false);
#endif

  bool debug = debug_state;

  float timeToA = 0.f;

  //configure the ADC <-> TDC transition depending on the value passed as argument
  double tdcOnset(maxADC);
  if (maxADC < 0) {
    maxADC = adcSaturation_fC_;
    tdcOnset = tdcOnset_fC_;
  }

  //configure the ADC LSB depending on the value passed as argument
  if (lsbADC < 0)
    lsbADC = adcLSB_fC_;

  //first look at time
  //for pileup look only at intime signals
  //ToA is in central BX if fired -- std::floor(BX/25.)+9;
  int fireBX = 9;
  //noise fluctuation on charge is added after ToA computation
  //do not recheck the ToA firing threshold tdcForToAOnset_fC_[thickness-1] not to bias the efficiency
  //to be done properly with realistic ToA shaper and jitter for the moment accounted in the smearing
  if (toaColl[fireBX] != 0.f) {
    timeToA = toaColl[fireBX];
    float jitter = getTimeJitter(chargeColl[fireBX], thickness);
    if (jitter != 0)
      timeToA = CLHEP::RandGaussQ::shoot(engine, timeToA, jitter);
    else if (tdcResolutionInNs_ != 0)
      timeToA = CLHEP::RandGaussQ::shoot(engine, timeToA, tdcResolutionInNs_);
    if (timeToA >= 0.f && timeToA <= 25.f)
      toaFlags[fireBX] = true;
  }

  //now look at charge
  //first identify bunches which will trigger ToT
  //if(debug_state) edm::LogVerbatim("HGCFE") << "[runShaperWithToT]" << std::endl;
  for (int it = 0; it < (int)(chargeColl.size()); ++it) {
    debug = debug_state;
    //if already flagged as busy it can't be re-used to trigger the ToT
    if (busyFlags[it])
      continue;

    if (tdcOnsetAuto < 0) {
      tdcOnsetAuto = tdcOnset_fC_;
    }
    //if below TDC onset will be handled by SARS ADC later
    float charge = chargeColl[it];
    if (charge < tdcOnset) {
      debug = false;
      continue;
    }

    //raise TDC mode for charge computation
    //ToA anyway fired independently will be sorted out with realistic ToA dedicated shaper
    float toa = timeToA;
    totFlags[it] = true;

    if (debug)
      edm::LogVerbatim("HGCFE") << "\t q=" << charge << " fC with <toa>=" << toa << " ns, triggers ToT @ " << it
                                << std::endl;

    //compute total charge to be integrated and integration time
    //needs a loop as ToT will last as long as there is charge to dissipate
    int busyBxs(0);
    float totalCharge(charge), finalToA(toa), integTime(0);
    while (true) {
      //compute integration time in ns and # bunches
      //float newIntegTime(0);
      int poffset = 0;
      float charge_offset = 0.f;
      const float charge_kfC(totalCharge * 1e-3);
      if (charge_kfC < tdcChargeDrainParameterisation_[3]) {
        //newIntegTime=tdcChargeDrainParameterisation_[0]*pow(charge_kfC,2)+tdcChargeDrainParameterisation_[1]*charge_kfC+tdcChargeDrainParameterisation_[2];
      } else if (charge_kfC < tdcChargeDrainParameterisation_[7]) {
        poffset = 4;
        charge_offset = tdcChargeDrainParameterisation_[3];
        //newIntegTime=tdcChargeDrainParameterisation_[4]*pow(charge_kfC-tdcChargeDrainParameterisation_[3],2)+tdcChargeDrainParameterisation_[5]*(charge_kfC-tdcChargeDrainParameterisation_[3])+tdcChargeDrainParameterisation_[6];
      } else {
        poffset = 8;
        charge_offset = tdcChargeDrainParameterisation_[7];
        //newIntegTime=tdcChargeDrainParameterisation_[8]*pow(charge_kfC-tdcChargeDrainParameterisation_[7],2)+tdcChargeDrainParameterisation_[9]*(charge_kfC-tdcChargeDrainParameterisation_[7])+tdcChargeDrainParameterisation_[10];
      }
      const float charge_mod = charge_kfC - charge_offset;
      const float newIntegTime =
          ((tdcChargeDrainParameterisation_[poffset] * charge_mod + tdcChargeDrainParameterisation_[poffset + 1]) *
               charge_mod +
           tdcChargeDrainParameterisation_[poffset + 2]);

      const int newBusyBxs = std::floor(newIntegTime / 25.f) + 1;

      //if no update is needed regarding the number of bunches,
      //then the ToT integration time has converged
      integTime = newIntegTime;
      if (newBusyBxs == busyBxs)
        break;

      //update charge integrated during ToT
      if (debug) {
        if (busyBxs == 0)
          edm::LogVerbatim("HGCFE") << "\t Intial busy estimate=" << integTime << " ns = " << newBusyBxs << " bxs"
                                    << std::endl;
        else
          edm::LogVerbatim("HGCFE") << "\t ...integrated charge overflows initial busy estimate, interating again"
                                    << std::endl;
      }

      //update number of busy bunches
      busyBxs = newBusyBxs;

      //reset charge to be integrated
      totalCharge = charge;
      if (toaMode_ == WEIGHTEDBYE)
        finalToA = toa * charge;

      //add leakage from previous bunches in SARS ADC mode
      for (int jt = 0; jt < it; ++jt) {
        const unsigned int deltaT = (it - jt);
        if ((deltaT + 2) >= adcPulse.size() || chargeColl[jt] == 0.f || totFlags[jt] || busyFlags[jt])
          continue;

        const float leakCharge = chargeColl[jt] * adcPulse[deltaT + 2];
        totalCharge += leakCharge;
        if (toaMode_ == WEIGHTEDBYE)
          finalToA += leakCharge * pulseAvgT_[deltaT + 2];

        if (debug)
          edm::LogVerbatim("HGCFE") << "\t\t leaking " << chargeColl[jt] << " fC @ deltaT=-" << deltaT << " -> +"
                                    << leakCharge << " with avgT=" << pulseAvgT_[deltaT + 2] << std::endl;
      }

      //add contamination from posterior bunches
      for (int jt = it + 1; jt < it + busyBxs && jt < dataFrame.size(); ++jt) {
        //this charge will be integrated in TDC mode
        //disable for SARS ADC
        busyFlags[jt] = true;

        const float extraCharge = chargeColl[jt];
        if (extraCharge == 0.f)
          continue;
        if (debug)
          edm::LogVerbatim("HGCFE") << "\t\t adding " << extraCharge << " fC @ deltaT=+" << (jt - it) << std::endl;

        totalCharge += extraCharge;
        if (toaMode_ == WEIGHTEDBYE)
          finalToA += extraCharge * toaColl[jt];
      }

      //finalize ToA contamination
      if (toaMode_ == WEIGHTEDBYE)
        finalToA /= totalCharge;
    }

    newCharge[it] = (totalCharge - tdcOnset);

    if (debug)
      edm::LogVerbatim("HGCFE") << "\t Final busy estimate=" << integTime << " ns = " << busyBxs << " bxs" << std::endl
                                << "\t Total integrated=" << totalCharge << " fC <toa>=" << toaFromToT[it]
                                << " (raw=" << finalToA << ") ns " << std::endl;

    //last fC (tdcOnset) are dissipated trough pulse
    if (it + busyBxs < (int)(newCharge.size())) {
      const float deltaT2nextBx((busyBxs * 25 - integTime));
      const float tdcOnsetLeakage(tdcOnset * vdt::fast_expf(-deltaT2nextBx / tdcChargeDrainParameterisation_[11]));
      if (debug)
        edm::LogVerbatim("HGCFE") << "\t Leaking remainder of TDC onset " << tdcOnset << " fC, to be dissipated in "
                                  << deltaT2nextBx << " DeltaT/tau=" << deltaT2nextBx << " / "
                                  << tdcChargeDrainParameterisation_[11] << " ns, adds " << tdcOnsetLeakage << " fC @ "
                                  << it + busyBxs << " bx (first free bx)" << std::endl;
      newCharge[it + busyBxs] += tdcOnsetLeakage;
    }
  }

  //including the leakage from bunches in SARS ADC when not declared busy or in ToT
  auto runChargeSharing = [&]() {
    int ipulse = 0;
    for (int it = 0; it < (int)(chargeColl.size()); ++it) {
      //if busy, charge has been already integrated
      //if(debug) edm::LogVerbatim("HGCFE") << "\t SARS ADC pulse activated @ " << it << " : ";
      if (!totFlags[it] & !busyFlags[it]) {
        const int start = std::max(0, 2 - it);
        const int stop = std::min((int)adcPulse.size(), (int)newCharge.size() - it + 2);
        for (ipulse = start; ipulse < stop; ++ipulse) {
          const int itoffset = it + ipulse - 2;
          //notice that if the channel is already busy,
          //it has already been affected by the leakage of the SARS ADC
          //if(totFlags[itoffset] || busyFlags[itoffset]) continue;
          if (!totFlags[itoffset] & !busyFlags[itoffset]) {
            newCharge[itoffset] += chargeColl[it] * adcPulse[ipulse];
          }
          //if(debug) edm::LogVerbatim("HGCFE") << " | " << itoffset << " " << chargeColl[it]*adcPulse[ipulse] << "( " << chargeColl[it] << "->";
          //if(debug) edm::LogVerbatim("HGCFE") << newCharge[itoffset] << ") ";
        }
      }

      if (debug)
        edm::LogVerbatim("HGCFE") << std::endl;
    }
  };
  runChargeSharing();

  //For the future need to understand how to deal with toa for out of time signals
  //and for that should keep track of the BX firing the ToA somewhere (also to restore the use of finalToA)
  /*
  float finalToA(0.);
  for(int it=0; it<(int)(newCharge.size()); it++){
    if(toaFlags[it]){
      finalToA = toaFromToT[it];
      //to avoid +=25 for small negative time taken as 0
      while(finalToA < -1.e-5)  finalToA+=25.f;
      while(finalToA > 25.f) finalToA-=25.f;
      toaFromToT[it] = finalToA;
    }
  }
  */
  //timeToA is already in 0-25ns range by construction

  //set new ADCs and ToA
  if (debug)
    edm::LogVerbatim("HGCFE") << "\t final result : ";
  for (int it = 0; it < (int)(newCharge.size()); it++) {
    if (debug)
      edm::LogVerbatim("HGCFE") << chargeColl[it] << " -> " << newCharge[it] << " ";

    HGCSample newSample;
    if (totFlags[it] || busyFlags[it]) {
      if (totFlags[it]) {
        //brute force saturation, maybe could to better with an exponential like saturation
        const float saturatedCharge(std::min(newCharge[it], tdcSaturation_fC_));
        //working version for in-time PU and signal
        newSample.set(
            true, true, gainIdx, (uint16_t)(timeToA / toaLSB_ns_), (uint16_t)(std::floor(saturatedCharge / tdcLSB_fC_)));
        if (toaFlags[it])
          newSample.setToAValid(true);
      } else {
        newSample.set(false, true, gainIdx, 0, 0);
      }
    } else {
      //brute force saturation, maybe could to better with an exponential like saturation
      const uint16_t adc = std::floor(std::min(newCharge[it], maxADC) / lsbADC);
      //working version for in-time PU and signal
      newSample.set(adc > thrADC, false, gainIdx, (uint16_t)(timeToA / toaLSB_ns_), adc);
      if (toaFlags[it])
        newSample.setToAValid(true);
    }
    dataFrame.setSample(it, newSample);
  }

  if (debug) {
    std::ostringstream msg;
    dataFrame.print(msg);
    edm::LogVerbatim("HGCFE") << msg.str() << std::endl;
  }
}

runShaperWithToT() [2/2]

template<class DFr >

void HGCFEElectronics< DFr >::runShaperWithToT ( DFr &  dataFrame, hgc::HGCSimHitData &  chargeColl, hgc::HGCSimHitData &  toa, CLHEP::HepRandomEngine *  engine, uint32_t  thrADC, float  lsbADC, uint32_t  gainIdx, float  maxADC, int  thickness, float  tdcOnsetAuto  )

inline

Definition at line 143 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::adcPulse_, HGCFEElectronics< DFr >::runShaperWithToT(), and Calorimetry_cff::thickness.

                                            {
    runShaperWithToT(
        dataFrame, chargeColl, toa, engine, thrADC, lsbADC, gainIdx, maxADC, thickness, tdcOnsetAuto, adcPulse_);
  }

runSimpleShaper() [1/2]

template<class DFr >

void HGCFEElectronics< DFr >::runSimpleShaper	(	DFr &	dataFrame,
		hgc::HGCSimHitData &	chargeColl,
		uint32_t	thrADC,
		float	lsbADC,
		uint32_t	gainIdx,
		float	maxADC,
		const hgc_digi::FEADCPulseShape &	adcPulse
	)

applies a shape to each time sample and propagates the tails to the subsequent time samples

Definition at line 146 of file HGCFEElectronics.cc.

References gpuClustering::adc, hgceeDigitizer_cfi::adcPulse, ALCARECOTkAlJpsiMuMu_cff::charge, debug, f, createfilelist::int, SiStripPI::min, mps_check::msg, and HGCSample::set().

Referenced by HGCFEElectronics< DFr >::runShaper(), and HGCFEElectronics< DFr >::runSimpleShaper().

                                                                                     {
  //convolute with pulse shape to compute new ADCs
  newCharge.fill(0.f);
  bool debug(false);
  for (int it = 0; it < (int)(chargeColl.size()); it++) {
    const float charge(chargeColl[it]);
    if (charge == 0.f)
      continue;

#ifdef EDM_ML_DEBUG
    debug |= (charge > adcThreshold_fC_);
#endif

    if (debug)
      edm::LogVerbatim("HGCFE") << "\t Redistributing SARS ADC" << charge << " @ " << it;

    for (int ipulse = -2; ipulse < (int)(adcPulse.size()) - 2; ipulse++) {
      if (it + ipulse < 0)
        continue;
      if (it + ipulse >= (int)(dataFrame.size()))
        continue;
      const float chargeLeak = charge * adcPulse[(ipulse + 2)];
      newCharge[it + ipulse] += chargeLeak;

      if (debug)
        edm::LogVerbatim("HGCFE") << " | " << it + ipulse << " " << chargeLeak;
    }

    if (debug)
      edm::LogVerbatim("HGCFE") << std::endl;
  }

  for (int it = 0; it < (int)(newCharge.size()); it++) {
    //brute force saturation, maybe could to better with an exponential like saturation
    const uint32_t adc = std::floor(std::min(newCharge[it], maxADC) / lsbADC);
    HGCSample newSample;
    newSample.set(adc > thrADC, false, gainIdx, 0, adc);
    dataFrame.setSample(it, newSample);

    if (debug)
      edm::LogVerbatim("HGCFE") << adc << " (" << std::min(newCharge[it], maxADC) << "/" << lsbADC << " ) ";
  }

  if (debug) {
    std::ostringstream msg;
    dataFrame.print(msg);
    edm::LogVerbatim("HGCFE") << msg.str() << std::endl;
  }
}

runSimpleShaper() [2/2]

template<class DFr >

void HGCFEElectronics< DFr >::runSimpleShaper ( DFr &  dataFrame, hgc::HGCSimHitData &  chargeColl, uint32_t  thrADC, float  lsbADC, uint32_t  gainIdx, float  maxADC  )

inline

Definition at line 124 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::adcPulse_, and HGCFEElectronics< DFr >::runSimpleShaper().

                                                                                                                   {
    runSimpleShaper(dataFrame, chargeColl, thrADC, lsbADC, gainIdx, maxADC, adcPulse_);
  }

runTrivialShaper()

template<class DFr >

void HGCFEElectronics< DFr >::runTrivialShaper	(	DFr &	dataFrame,
		hgc::HGCSimHitData &	chargeColl,
		uint32_t	thrADC,
		float	lsbADC,
		uint32_t	gainIdx,
		float	maxADC
	)

converts charge to digis without pulse shape

Definition at line 107 of file HGCFEElectronics.cc.

References gpuClustering::adc, debug, MillePedeFileConverter_cfg::e, createfilelist::int, SiStripPI::min, mps_check::msg, and HGCSample::set().

Referenced by HGCFEElectronics< DFr >::runShaper().

                                                                                                              {
  bool debug(false);

#ifdef EDM_ML_DEBUG
  for (int it = 0; it < (int)(chargeColl.size()); it++)
    debug |= (chargeColl[it] > adcThreshold_fC_);
#endif

  if (debug)
    edm::LogVerbatim("HGCFE") << "[runTrivialShaper]" << std::endl;

  if (lsbADC < 0)
    lsbADC = adcLSB_fC_;
  if (maxADC < 0)
    // lower adcSaturation_fC_ by one part in a million
    // to ensure largest charge converted in bits is 0xfff==4095, not 0x1000
    // no effect on charges loewer than; no impact on cpu time, only done once
    maxADC = adcSaturation_fC_ * (1 - 1e-6);
  for (int it = 0; it < (int)(chargeColl.size()); it++) {
    //brute force saturation, maybe could to better with an exponential like saturation
    const uint32_t adc = std::floor(std::min(chargeColl[it], maxADC) / lsbADC);
    HGCSample newSample;
    newSample.set(adc > thrADC, false, gainIdx, 0, adc);
    dataFrame.setSample(it, newSample);

    if (debug)
      edm::LogVerbatim("HGCFE") << adc << " (" << chargeColl[it] << "/" << adcLSB_fC_ << ") ";
  }

  if (debug) {
    std::ostringstream msg;
    dataFrame.print(msg);
    edm::LogVerbatim("HGCFE") << msg.str() << std::endl;
  }
}

setADClsb()

template<class DFr >

void HGCFEElectronics< DFr >::setADClsb ( float  newLSB )

inline

Definition at line 99 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::adcLSB_fC_.

{ adcLSB_fC_ = newLSB; }

SetNoiseValues()

template<class DFr >

void HGCFEElectronics< DFr >::SetNoiseValues ( const std::vector< float > &  noise_fC )

inline

Definition at line 76 of file HGCFEElectronics.h.

References hgceeDigitizer_cfi::noise_fC, and HGCFEElectronics< DFr >::noise_fC_.

                                                        {
    noise_fC_.insert(noise_fC_.end(), noise_fC.begin(), noise_fC.end());
  };

setTDCfsc()

template<class DFr >

void HGCFEElectronics< DFr >::setTDCfsc ( float  newTDCfsc )

inline

Definition at line 100 of file HGCFEElectronics.h.

References MillePedeFileConverter_cfg::e, funct::pow(), HGCFEElectronics< DFr >::tdcLSB_fC_, HGCFEElectronics< DFr >::tdcNbits_, and HGCFEElectronics< DFr >::tdcSaturation_fC_.

                                  {
    tdcSaturation_fC_ = newTDCfsc;
    tdcLSB_fC_ = tdcSaturation_fC_ / pow(2., tdcNbits_);
    // lower tdcSaturation_fC_ by one part in a million
    // to ensure largest charge converted in bits is 0xfff and not 0x000
    tdcSaturation_fC_ *= (1. - 1e-6);
  }

toaMode()

template<class DFr >

uint32_t HGCFEElectronics< DFr >::toaMode ( ) const

inline

returns how ToT will be computed

Definition at line 160 of file HGCFEElectronics.h.

References HGCFEElectronics< DFr >::toaMode_.

{ return toaMode_; }

Member Data Documentation

adcLSB_fC_

template<class DFr >

float HGCFEElectronics< DFr >::adcLSB_fC_

private

Definition at line 178 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getADClsb(), and HGCFEElectronics< DFr >::setADClsb().

adcPulse_

template<class DFr >

hgc_digi::FEADCPulseShape HGCFEElectronics< DFr >::adcPulse_

private

Definition at line 175 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getDefaultADCPulse(), HGCFEElectronics< DFr >::runShaper(), HGCFEElectronics< DFr >::runShaperWithToT(), and HGCFEElectronics< DFr >::runSimpleShaper().

adcSaturation_fC_

template<class DFr >

float HGCFEElectronics< DFr >::adcSaturation_fC_

private

Definition at line 178 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getMaxADC().

adcThreshold_fC_

template<class DFr >

float HGCFEElectronics< DFr >::adcThreshold_fC_

private

Definition at line 178 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getADCThreshold().

busyFlags

template<class DFr >

std::array<bool, hgc::nSamples> HGCFEElectronics< DFr >::busyFlags

private

Definition at line 187 of file HGCFEElectronics.h.

fwVersion_

template<class DFr >

uint32_t HGCFEElectronics< DFr >::fwVersion_

private

Definition at line 174 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::runShaper().

jitterConstant2_ns_

template<class DFr >

std::array<float, 3> HGCFEElectronics< DFr >::jitterConstant2_ns_

private

Definition at line 181 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getTimeJitter().

jitterNoise2_ns_

template<class DFr >

std::array<float, 3> HGCFEElectronics< DFr >::jitterNoise2_ns_

private

Definition at line 181 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getTimeJitter().

newCharge

template<class DFr >

hgc::HGCSimHitData HGCFEElectronics< DFr >::newCharge

private

Definition at line 188 of file HGCFEElectronics.h.

noise_fC_

template<class DFr >

std::vector<float> HGCFEElectronics< DFr >::noise_fC_

private

Definition at line 182 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getTimeJitter(), and HGCFEElectronics< DFr >::SetNoiseValues().

pulseAvgT_

template<class DFr >

hgc_digi::FEADCPulseShape HGCFEElectronics< DFr >::pulseAvgT_

private

Definition at line 175 of file HGCFEElectronics.h.

targetMIPvalue_ADC_

template<class DFr >

uint32_t HGCFEElectronics< DFr >::targetMIPvalue_ADC_

private

Definition at line 180 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getTargetMipValue().

tdcChargeDrainParameterisation_

template<class DFr >

std::vector<float> HGCFEElectronics< DFr >::tdcChargeDrainParameterisation_

private

Definition at line 177 of file HGCFEElectronics.h.

tdcForToAOnset_fC_

template<class DFr >

std::array<float, 3> HGCFEElectronics< DFr >::tdcForToAOnset_fC_

private

Definition at line 176 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getTDCForToAOnset().

tdcLSB_fC_

template<class DFr >

float HGCFEElectronics< DFr >::tdcLSB_fC_

private

Definition at line 178 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getTDClsb(), and HGCFEElectronics< DFr >::setTDCfsc().

tdcNbits_

template<class DFr >

uint32_t HGCFEElectronics< DFr >::tdcNbits_

private

Definition at line 184 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::setTDCfsc().

tdcOnset_fC_

template<class DFr >

float HGCFEElectronics< DFr >::tdcOnset_fC_

private

Definition at line 178 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getTDCOnset().

tdcResolutionInNs_

template<class DFr >

float HGCFEElectronics< DFr >::tdcResolutionInNs_

private

Definition at line 178 of file HGCFEElectronics.h.

tdcSaturation_fC_

template<class DFr >

float HGCFEElectronics< DFr >::tdcSaturation_fC_

private

Definition at line 178 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::getMaxTDC(), and HGCFEElectronics< DFr >::setTDCfsc().

thresholdFollowsMIP_

template<class DFr >

bool HGCFEElectronics< DFr >::thresholdFollowsMIP_

private

Definition at line 185 of file HGCFEElectronics.h.

toaFlags

template<class DFr >

std::array<bool, hgc::nSamples> HGCFEElectronics< DFr >::toaFlags

private

Definition at line 187 of file HGCFEElectronics.h.

toaFromToT

template<class DFr >

hgc::HGCSimHitData HGCFEElectronics< DFr >::toaFromToT

private

Definition at line 188 of file HGCFEElectronics.h.

toaLSB_ns_

template<class DFr >

float HGCFEElectronics< DFr >::toaLSB_ns_

private

Definition at line 178 of file HGCFEElectronics.h.

toaMode_

template<class DFr >

uint32_t HGCFEElectronics< DFr >::toaMode_

private

Definition at line 183 of file HGCFEElectronics.h.

Referenced by HGCFEElectronics< DFr >::toaMode().

totFlags

template<class DFr >

std::array<bool, hgc::nSamples> HGCFEElectronics< DFr >::totFlags

private

Definition at line 187 of file HGCFEElectronics.h.