SiStripCommissioningSources/src/FineDelayTask.cc

0001 #include "DQM/SiStripCommissioningSources/interface/FineDelayTask.h"
0002 #include "DataFormats/SiStripCommon/interface/SiStripHistoTitle.h"
0003 #include "DQMServices/Core/interface/DQMStore.h"
0004 #include "FWCore/MessageLogger/interface/MessageLogger.h"
0005 #include "DataFormats/SiStripCommon/interface/SiStripDetKey.h"
0006
0007 #define NBINS (500)
0008 #define LOWBIN (-125)
0009 #define HIGHBIN (125)
0010
0011 // -----------------------------------------------------------------------------
0012 //
0013 CommissioningTask::HistoSet FineDelayTask::timing_;
0014 CommissioningTask::MonitorElement* FineDelayTask::mode_ = nullptr;
0015
0016 // -----------------------------------------------------------------------------
0017 //
0018 FineDelayTask::FineDelayTask(DQMStore* dqm, const FedChannelConnection& conn)
0019     : CommissioningTask(dqm, conn, "FineDelayTask") {
0020   LogDebug("Commissioning") << "[FineDelayTask::FineDelayTask] Constructing object...";
0021 }
0022
0023 // -----------------------------------------------------------------------------
0024 //
0025 FineDelayTask::~FineDelayTask() { LogDebug("Commissioning") << "[FineDelayTask::FineDelayTask] Destructing object..."; }
0026
0027 // -----------------------------------------------------------------------------
0028 //
0029 void FineDelayTask::book() {
0030   LogDebug("Commissioning") << "[FineDelayTask::book]";
0031
0032   std::string title;
0033   int nBins = NBINS;
0034   SiStripDetKey detkeytracker((uint32_t)0);
0035
0036   // see if the global timing histogram is already booked
0037   if (timing_.histo()) {
0038     // if already booked, use it
0039     LogDebug("Commissioning") << "[FineDelayTask::book] using existing histogram.";
0040   } else {
0041     // make a new histo on the tracker level if not existing yet
0042     LogDebug("Commissioning") << "[LatencyTask::book] booking a new histogram.";
0043     // construct the histo title
0044     title = SiStripHistoTitle(sistrip::EXPERT_HISTO,
0045                               sistrip::FINE_DELAY,
0046                               sistrip::DET_KEY,
0047                               detkeytracker.key(),
0048                               sistrip::TRACKER,
0049                               0,
0050                               sistrip::extrainfo::clusterCharge_)
0051                 .title();
0052     dqm()->setCurrentFolder(detkeytracker.path());
0053     timing_.histo(dqm()->bookProfile(title,
0054                                      title,  // name and title
0055                                      nBins,
0056                                      LOWBIN,
0057                                      HIGHBIN,  // binning + range
0058                                      100,
0059                                      0.,
0060                                      -1.,
0061                                      "s"));  // Y range : automatic
0062     timing_.vNumOfEntries_.resize(nBins, 0);
0063     timing_.vSumOfContents_.resize(nBins, 0);
0064     timing_.vSumOfSquares_.resize(nBins, 0);
0065   }
0066   LogDebug("Commissioning") << "Binning is " << timing_.vNumOfEntries_.size();
0067   LogDebug("Commissioning") << "[FineDelayTask::book] done";
0068   if (!mode_) {
0069     std::string pwd = dqm()->pwd();
0070     std::string rootDir = pwd.substr(0, pwd.find(std::string(sistrip::root_) + "/") + (sizeof(sistrip::root_)));
0071     dqm()->setCurrentFolder(rootDir);
0072     mode_ = dqm()->bookInt("latencyCode");
0073   }
0074 }
0075
0076 // -----------------------------------------------------------------------------
0077 //
0078 void FineDelayTask::fill(const SiStripEventSummary& summary, const edm::DetSet<SiStripRawDigi>& digis) {
0079   LogDebug("Commissioning") << "[FineDelayTask::fill]";
0080   // retrieve the delay from the EventSummary
0081   float delay = summary.ttcrx();
0082   uint32_t latencyCode = (summary.layerScanned() >> 24) & 0xff;
0083   LogDebug("Commissioning") << "[FineDelayTask::fill]: layerScanned() is " << summary.layerScanned();
0084   int latencyShift =
0085       latencyCode & 0x3f;  // number of bunch crossings between current value and start of scan... must be positive
0086   if (latencyShift > 32)
0087     latencyShift -= 64;  // allow negative values: we cover [-32,32].. should not be needed.
0088   if ((latencyCode >> 6) == 2)
0089     latencyShift -= 3;  // layer in deconv, rest in peak
0090   else if ((latencyCode >> 6) == 1)
0091     latencyShift += 3;  // layer in peak, rest in deconv
0092   float correctedDelayBase =
0093       delay - (latencyShift * 25.);  // shifts the delay so that 0 corresponds to the current settings.
0094
0095   LogDebug("Commissioning") << "[FineDelayTask::fill]; the delay is " << delay;
0096   // loop on the strips to find the (maybe) non-zero digi
0097   for (unsigned int strip = 0; strip < digis.data.size(); strip++) {
0098     if (digis.data[strip].adc() != 0) {
0099       if ((digis.data[strip].adc() >> 8) == 255)
0100         continue;  // skip hit if TOF is in overflow
0101       // apply the TOF correction
0102       float tof = (digis.data[strip].adc() >> 8) / 10.;
0103       float correctedDelay = correctedDelayBase - tof;
0104       // compute the bin
0105       float nbins = NBINS;
0106       float lowbin = LOWBIN;
0107       float highbin = HIGHBIN;
0108       int bin = int((correctedDelay - lowbin) / ((highbin - lowbin) / nbins));
0109       LogDebug("Commissioning") << "[FineDelayTask::fill]; using a hit with value " << (digis.data[strip].adc() & 0xff)
0110                                 << " at corrected delay of " << correctedDelay << " in bin " << bin << "  (tof is "
0111                                 << tof << "( since adc = " << digis.data[strip].adc() << "))";
0112       updateHistoSet(timing_, bin, digis.data[strip].adc() & 0xff);
0113       if (mode_)
0114         mode_->Fill(latencyCode);
0115     }
0116   }
0117 }
0118
0119 // -----------------------------------------------------------------------------
0120 //
0121 void FineDelayTask::update() {
0122   LogDebug("Commissioning") << "[FineDelayTask::update]";
0123   updateHistoSet(timing_);
0124 }