---

FineDelayTask Class Reference

#include <DQM/SiStripCommissioningSources/interface/FineDelayTask.h>

Inheritance diagram for FineDelayTask:

List of all members.

Public Member Functions
	FineDelayTask (DQMStore *, const FedChannelConnection &)
virtual	~FineDelayTask ()
Private Member Functions
virtual void	book ()
virtual void	fill (const SiStripEventSummary &, const edm::DetSet< SiStripRawDigi > &)
virtual void	update ()
Private Attributes
float	fiberLengthCorrection_
HistoSet *	timing_
Static Private Attributes
static std::map< std::string, HistoSet >	timingMap_

---

Detailed Description

Definition at line 11 of file FineDelayTask.h.

---

Constructor & Destructor Documentation

FineDelayTask::FineDelayTask	(	DQMStore *	dqm,
		const FedChannelConnection &	conn
	)

Definition at line 17 of file FineDelayTask.cc.

References c, FedChannelConnection::fiberLength(), fiberLengthCorrection_, and LogDebug.

                                                                 :
  CommissioningTask( dqm, conn, "FineDelayTask" ), timing_(0)
{
  LogDebug("Commissioning") << "[FineDelayTask::FineDelayTask] Constructing object...";
  // compute the fiber length correction
  float length=conn.fiberLength();
  // convert cm to ns
  float c=30; //speed of light in cm/ns
  float refractionIndex = 1.4; // refraction index of the optical fibers
  fiberLengthCorrection_ =  length/c*refractionIndex;
}

FineDelayTask::~FineDelayTask

(

)

[virtual]

Definition at line 32 of file FineDelayTask.cc.

References LogDebug.

                              {
  LogDebug("Commissioning") << "[FineDelayTask::FineDelayTask] Destructing object...";
}

---

Member Function Documentation

void FineDelayTask::book

(

)

[private, virtual]

Reimplemented from CommissioningTask.

Definition at line 38 of file FineDelayTask.cc.

References sistrip::DET_KEY, CommissioningTask::dqm(), sistrip::EXPERT_HISTO, sistrip::FINE_DELAY, HIGHBIN, LogDebug, LOWBIN, NBINS, timing_, timingMap_, indexGen::title, sistrip::TRACKER, and CommissioningTask::HistoSet::vNumOfEntries_.

                         {
  LogDebug("Commissioning") << "[FineDelayTask::book]";

  // construct the histo title
  // by setting the granularity to sistrip::TRACKER, the title will be identical for all detkeys.
  // therefore, only one histo will be booked/analyzed
  std::string title = SiStripHistoTitle( sistrip::EXPERT_HISTO, 
                                         sistrip::FINE_DELAY, 
                                         sistrip::DET_KEY, 
                                         0,
                                         sistrip::TRACKER, 
                                         0 ).title(); 
  // look if such an histogram is already booked
  if(timingMap_.find(title)!=timingMap_.end()) {
    // if already booked, use it
    LogDebug("Commissioning") << "[FineDelayTask::book] using existing histogram.";
  } else {
    // if not, book it
    int nBins = NBINS;
    LogDebug("Commissioning") << "[LatencyTask::book] booking a new histogram.";
    timingMap_[title].histo( dqm()->bookProfile( title, title,    // name and title
                                                 nBins, LOWBIN, HIGHBIN,   // binning + range
                                                 100, 0., -1., "s" ) );  // Y range : automatic

    timingMap_[title].vNumOfEntries_.resize(nBins,0);
    timingMap_[title].vSumOfContents_.resize(nBins,0);
    timingMap_[title].vSumOfSquares_.resize(nBins,0);
  }
  timing_ = &(timingMap_[title]);
  LogDebug("Commissioning") << "Binning is " << timing_->vNumOfEntries_.size();
  LogDebug("Commissioning") << "[FineDelayTask::book] done";
  
}

void FineDelayTask::fill	(	const SiStripEventSummary &	summary,
		const edm::DetSet< SiStripRawDigi > &	digis
	)			[private, virtual]

Reimplemented from CommissioningTask.

Definition at line 74 of file FineDelayTask.cc.

References edm::DetSet< T >::data, HIGHBIN, int, LogDebug, LOWBIN, NBINS, strip(), timing_, and CommissioningTask::updateHistoSet().

                                                                   {
  LogDebug("Commissioning") << "[FineDelayTask::fill]";
  // retrieve the delay from the EventSummary
  float delay = const_cast<SiStripEventSummary&>(summary).ttcrx();
  float correctedDelay = delay;
  LogDebug("Commissioning") << "[FineDelayTask::fill]; the delay is " << delay;
  // loop on the strips to find the (maybe) non-zero digi
  for(unsigned int strip=0;strip<digis.data.size();strip++) {
    if(digis.data[strip].adc()!=0) {
      // apply the TOF correction
      float tof = (digis.data[strip].adc()>>8)/10.;
      correctedDelay = delay - tof;
      if((digis.data[strip].adc()>>8)==255) continue; // skip hit if TOF is in overflow
      // compute the bin
      float nbins = NBINS;
      float lowbin = LOWBIN;
      float highbin = HIGHBIN;
      int bin = int((correctedDelay-lowbin)/((highbin-lowbin)/nbins));
      LogDebug("Commissioning") << "[FineDelayTask::fill]; using a hit with value " << ( digis.data[strip].adc()&0xff )
                                << " at corrected delay of " << correctedDelay
                                << " in bin " << bin << "  (tof is " << tof << "( since adc = " << digis.data[strip].adc() << "))";
      updateHistoSet( *timing_,bin,digis.data[strip].adc()&0xff);
    }
  }
}

void FineDelayTask::update

(

)

[private, virtual]

Reimplemented from CommissioningTask.

Definition at line 103 of file FineDelayTask.cc.

References LogDebug, timing_, and CommissioningTask::updateHistoSet().

                           {
  LogDebug("Commissioning") << "[FineDelayTask::update]";
  updateHistoSet( *timing_ );
}

---

Member Data Documentation

float FineDelayTask::fiberLengthCorrection_ [private]

Definition at line 28 of file FineDelayTask.h.

Referenced by FineDelayTask().

HistoSet* FineDelayTask::timing_ [private]

Definition at line 26 of file FineDelayTask.h.

Referenced by book(), fill(), and update().

std::map< std::string, CommissioningTask::HistoSet > FineDelayTask::timingMap_ [static, private]

Definition at line 25 of file FineDelayTask.h.

Referenced by book().

---

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

• DQM/SiStripCommissioningSources/interface/FineDelayTask.h
• DQM/SiStripCommissioningSources/src/FineDelayTask.cc

---