#include <DTNoiseTask.h>

Inheritance diagram for DTNoiseTask:

Public Member Functions
void	bookHistograms (DQMStore::IBooker &, edm::Run const &, edm::EventSetup const &) override

	DTNoiseTask (const edm::ParameterSet &ps)
	Constructor. More...

	~DTNoiseTask () override
	Destructor. More...

Public Member Functions inherited from DQMOneEDAnalyzer< edm::one::WatchLuminosityBlocks >
void	accumulate (edm::Event const &event, edm::EventSetup const &setup) override

void	beginRun (edm::Run const &run, edm::EventSetup const &setup) final

	DQMOneEDAnalyzer ()

void	endRun (edm::Run const &, edm::EventSetup const &) final

void	endRunProduce (edm::Run &run, edm::EventSetup const &setup) final

virtual bool	getCanSaveByLumi ()

Public Member Functions inherited from edm::one::EDProducer< edm::EndRunProducer, edm::one::WatchRuns, edm::Accumulator, Args...>
	EDProducer ()=default

	EDProducer (const EDProducer &)=delete

SerialTaskQueue *	globalLuminosityBlocksQueue () final

SerialTaskQueue *	globalRunsQueue () final

bool	hasAbilityToProduceInBeginLumis () const final

bool	hasAbilityToProduceInBeginProcessBlocks () const final

bool	hasAbilityToProduceInBeginRuns () const final

bool	hasAbilityToProduceInEndLumis () const final

bool	hasAbilityToProduceInEndProcessBlocks () const final

bool	hasAbilityToProduceInEndRuns () const final

const EDProducer &	operator= (const EDProducer &)=delete

bool	wantsGlobalLuminosityBlocks () const final

bool	wantsGlobalRuns () const final

bool	wantsInputProcessBlocks () const final

bool	wantsProcessBlocks () const final

Public Member Functions inherited from edm::one::EDProducerBase
	EDProducerBase ()

ModuleDescription const &	moduleDescription () const

bool	wantsStreamLuminosityBlocks () const

bool	wantsStreamRuns () const

	~EDProducerBase () override

Public Member Functions inherited from edm::ProducerBase
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)

std::vector < edm::ProductResolverIndex > const &	indiciesForPutProducts (BranchType iBranchType) const

	ProducerBase ()

std::vector < edm::ProductResolverIndex > const &	putTokenIndexToProductResolverIndex () const

void	registerProducts (ProducerBase , ProductRegistry , ModuleDescription const &)

std::function< void(BranchDescription const &)>	registrationCallback () const
	used by the fwk to register list of products More...

void	resolvePutIndicies (BranchType iBranchType, ModuleToResolverIndicies const &iIndicies, std::string const &moduleLabel)

	~ProducerBase () noexcept(false) override

Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const

void	convertCurrentProcessAlias (std::string const &processName)
	Convert "@currentProcess" in InputTag process names to the actual current process name. More...

	EDConsumerBase ()

	EDConsumerBase (EDConsumerBase const &)=delete

	EDConsumerBase (EDConsumerBase &&)=default

ESProxyIndex const *	esGetTokenIndices (edm::Transition iTrans) const

std::vector< ESProxyIndex > const &	esGetTokenIndicesVector (edm::Transition iTrans) const

std::vector< ESRecordIndex > const &	esGetTokenRecordIndicesVector (edm::Transition iTrans) const

ProductResolverIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const

void	itemsMayGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const

void	itemsToGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const

std::vector < ProductResolverIndexAndSkipBit > const &	itemsToGetFrom (BranchType iType) const

void	labelsForToken (EDGetToken iToken, Labels &oLabels) const

void	modulesWhoseProductsAreConsumed (std::array< std::vector< ModuleDescription const * > , NumBranchTypes > &modulesAll, std::vector< ModuleProcessName > &modulesInPreviousProcesses, ProductRegistry const &preg, std::map< std::string, ModuleDescription const > const &labelsToDesc, std::string const &processName) const

EDConsumerBase const &	operator= (EDConsumerBase const &)=delete

EDConsumerBase &	operator= (EDConsumerBase &&)=default

bool	registeredToConsume (ProductResolverIndex, bool, BranchType) const

bool	registeredToConsumeMany (TypeID const &, BranchType) const

void	selectInputProcessBlocks (ProductRegistry const &productRegistry, ProcessBlockHelperBase const &processBlockHelperBase)

ProductResolverIndexAndSkipBit	uncheckedIndexFrom (EDGetToken) const

void	updateLookup (BranchType iBranchType, ProductResolverIndexHelper const &, bool iPrefetchMayGet)

void	updateLookup (eventsetup::ESRecordsToProxyIndices const &)

virtual	~EDConsumerBase () noexcept(false)

Protected Member Functions
void	analyze (const edm::Event &e, const edm::EventSetup &c) override
	Analyze. More...

void	beginLuminosityBlock (const edm::LuminosityBlock &lumiSeg, const edm::EventSetup &setup) final

void	dqmBeginRun (const edm::Run &, const edm::EventSetup &) override

void	endLuminosityBlock (const edm::LuminosityBlock &lumiSeg, const edm::EventSetup &setup) override

Protected Member Functions inherited from DQMOneEDAnalyzer< edm::one::WatchLuminosityBlocks >
virtual void	dqmEndRun (edm::Run const &, edm::EventSetup const &)

Protected Member Functions inherited from edm::ProducerBase
ProducesCollector	producesCollector ()

Protected Member Functions inherited from edm::EDConsumerBase
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)

template<BranchType B = InEvent>
EDConsumerBaseAdaptor< B >	consumes (edm::InputTag tag) noexcept

EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)

template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)

ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...

template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()

void	consumesMany (const TypeToGet &id)

template<BranchType B>
void	consumesMany (const TypeToGet &id)

template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes ()

template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes (ESInputTag const &tag)

template<Transition Tr = Transition::Event>
constexpr auto	esConsumes ()

template<Transition Tr = Transition::Event>
auto	esConsumes (ESInputTag tag)

template<Transition Tr = Transition::Event>
ESGetTokenGeneric	esConsumes (eventsetup::EventSetupRecordKey const &iRecord, eventsetup::DataKey const &iKey)
	Used with EventSetupRecord::doGet. More...

template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)

EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

void	resetItemsToGetFrom (BranchType iType)

Private Member Functions
void	bookHistos (DQMStore::IBooker &, DTChamberId chId)

void	bookHistos (DQMStore::IBooker &, DTSuperLayerId slId)

Private Attributes
bool	doSegmentVeto

bool	doTimeBoxHistos

edm::EDGetTokenT < DTDigiCollection >	dtDigiToken_

const DTGeometry *	dtGeom

int	evtNumber

std::map< DTChamberId, int >	mapEvt

edm::ESGetToken< DTGeometry, MuonGeometryRecord >	muonGeomToken_

MonitorElement *	nEventMonitor

std::map< DTChamberId, MonitorElement * >	noiseHistos

edm::EDGetTokenT < DTRecSegment4DCollection >	recHits4DToken_

double	safeMargin

std::map< DTSuperLayerId, MonitorElement * >	tbHistos

const DTTtrig *	tTrigMap

edm::ESGetToken< DTTtrig, DTTtrigRcd >	tTrigMapToken_

std::map< DTChamberId, double >	tTrigStMap

Additional Inherited Members
Public Types inherited from DQMOneEDAnalyzer< edm::one::WatchLuminosityBlocks >
typedef dqm::reco::DQMStore	DQMStore

typedef dqm::reco::MonitorElement	MonitorElement

Public Types inherited from edm::one::EDProducerBase
typedef EDProducerBase	ModuleType

Public Types inherited from edm::ProducerBase
using	ModuleToResolverIndicies = std::unordered_multimap< std::string, std::tuple< edm::TypeID const , const char , edm::ProductResolverIndex >>

typedef ProductRegistryHelper::TypeLabelList	TypeLabelList

Public Types inherited from edm::EDConsumerBase
typedef ProductLabels	Labels

Static Public Member Functions inherited from edm::one::EDProducerBase
static const std::string &	baseType ()

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

Protected Attributes inherited from DQMOneEDAnalyzer< edm::one::WatchLuminosityBlocks >
edm::EDPutTokenT< DQMToken >	runToken_

Detailed Description

No description available.

Authors: G. Mila , G. Cerminara - INFN Torino

Definition at line 39 of file DTNoiseTask.h.

Constructor & Destructor Documentation

DTNoiseTask::DTNoiseTask ( const edm::ParameterSet & ps )

Constructor.

Definition at line 37 of file DTNoiseTask.cc.

References doSegmentVeto, doTimeBoxHistos, dtDigiToken_, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), HLT_FULL_cff::InputTag, recHits4DToken_, and safeMargin.

     : evtNumber(0),
       muonGeomToken_(esConsumes<edm::Transition::BeginRun>()),
       tTrigMapToken_(esConsumes<edm::Transition::BeginRun>()) {
   LogVerbatim("DTNoiseTask") << "[DTNoiseTask]: Constructor" << endl;
 
   //switch for timeBox booking
   doTimeBoxHistos = ps.getUntrackedParameter<bool>("doTbHistos", false);
 
   // The label to retrieve the digis
   dtDigiToken_ = consumes<DTDigiCollection>(ps.getParameter<InputTag>("dtDigiLabel"));
 
   // the name of the 4D rec hits collection
   recHits4DToken_ = consumes<DTRecSegment4DCollection>(edm::InputTag(ps.getParameter<string>("recHits4DLabel")));
 
   // switch for segment veto
   doSegmentVeto = ps.getUntrackedParameter<bool>("doSegmentVeto", false);
 
   // safe margin (ns) between ttrig and beginning of counting area
   safeMargin = ps.getUntrackedParameter<double>("safeMargin", 200.);
 }

DTNoiseTask::~DTNoiseTask ( )

override

Destructor.

Definition at line 59 of file DTNoiseTask.cc.

59 {}

Member Function Documentation

void DTNoiseTask::analyze	(	const edm::Event &	e,
		const edm::EventSetup &	c
	)

overrideprotectedvirtual

Analyze.

Reimplemented from DQMOneEDAnalyzer< edm::one::WatchLuminosityBlocks >.

Definition at line 62 of file DTNoiseTask.cc.

References doSegmentVeto, doTimeBoxHistos, dtDigiToken_, evtNumber, dqm::impl::MonitorElement::Fill(), edm::Event::getByToken(), mapEvt, nEventMonitor, noiseHistos, recHits4DToken_, safeMargin, edm::second(), tbHistos, tTrigStMap, SplitLinear::upperLimit, and cuy::yBin.

                                                                    {
   evtNumber++;
   nEventMonitor->Fill(evtNumber);
 
   if (evtNumber % 1000 == 0)
     LogVerbatim("DTNoiseTask") << "[DTNoiseTask]: Analyzing evt number :" << evtNumber << endl;
 
   // map of the chambers with at least 1 segment
   std::map<DTChamberId, int> segmentsChId;
 
   // Get the 4D segment collection from the event
   edm::Handle<DTRecSegment4DCollection> all4DSegments;
   if (doSegmentVeto) {
     e.getByToken(recHits4DToken_, all4DSegments);
 
     // Loop over all chambers containing a segment and look for the number of segments
     DTRecSegment4DCollection::id_iterator chamberId;
     for (chamberId = all4DSegments->id_begin(); chamberId != all4DSegments->id_end(); ++chamberId) {
       segmentsChId[*chamberId] = 1;
     }
   }
 
   // Get the digis from the event
   edm::Handle<DTDigiCollection> dtdigis;
   e.getByToken(dtDigiToken_, dtdigis);
 
   // LOOP OVER ALL THE DIGIS OF THE EVENT
   DTDigiCollection::DigiRangeIterator dtLayerId_It;
   for (dtLayerId_It = dtdigis->begin(); dtLayerId_It != dtdigis->end(); ++dtLayerId_It) {
     for (DTDigiCollection::const_iterator digiIt = ((*dtLayerId_It).second).first;
          digiIt != ((*dtLayerId_It).second).second;
          ++digiIt) {
       //Check the TDC trigger width
       int tdcTime = (*digiIt).countsTDC();
       double upperLimit = tTrigStMap[(*dtLayerId_It).first.superlayerId().chamberId()] - safeMargin;
       if (doTimeBoxHistos)
         tbHistos[(*dtLayerId_It).first.superlayerId()]->Fill(tdcTime);
       if (tdcTime > upperLimit)
         continue;
 
       //Check the chamber has no 4D segments (optional)
       if (doSegmentVeto && segmentsChId.find((*dtLayerId_It).first.superlayerId().chamberId()) != segmentsChId.end())
         continue;
 
       // fill the occupancy histo
       // FIXME: needs to be optimized: no need to rescale the histo for each digi
       TH2F* noise_root = noiseHistos[(*dtLayerId_It).first.superlayerId().chamberId()]->getTH2F();
       double normalization = 0;
       if (mapEvt.find((*dtLayerId_It).first.superlayerId().chamberId()) != mapEvt.end()) {
         LogVerbatim("DTNoiseTask") << " Last fill: # of events: "
                                    << mapEvt[(*dtLayerId_It).first.superlayerId().chamberId()] << endl;
         normalization = 1e-9 * upperLimit * mapEvt[(*dtLayerId_It).first.superlayerId().chamberId()];
         // revert back to # of entries
         noise_root->Scale(normalization);
       }
       int yBin = (*dtLayerId_It).first.layer() + (4 * ((*dtLayerId_It).first.superlayerId().superlayer() - 1));
       noise_root->Fill((*digiIt).wire(), yBin);
       // normalize the occupancy histo
       mapEvt[(*dtLayerId_It).first.superlayerId().chamberId()] = evtNumber;
       LogVerbatim("DTNoiseTask") << (*dtLayerId_It).first << " wire: " << (*digiIt).wire()
                                  << " # counts: " << noise_root->GetBinContent((*digiIt).wire(), yBin)
                                  << " Time interval: " << upperLimit << " # of events: " << evtNumber << endl;
       ;
       normalization = double(1e-9 * upperLimit * mapEvt[(*dtLayerId_It).first.superlayerId().chamberId()]);
       // update the rate
       noise_root->Scale(1. / normalization);
       LogVerbatim("DTNoiseTask") << "    noise rate: " << noise_root->GetBinContent((*digiIt).wire(), yBin) << endl;
     }
   }
 }

void DTNoiseTask::beginLuminosityBlock	(	const edm::LuminosityBlock &	lumiSeg,
		const edm::EventSetup &	setup
	)

inlinefinalprotected

Definition at line 53 of file DTNoiseTask.h.

53 {}

void DTNoiseTask::bookHistograms	(	DQMStore::IBooker &	ibooker,
		edm::Run const &	run,
		edm::EventSetup const &	setup
	)

overridevirtual

Implements DQMOneEDAnalyzer< edm::one::WatchLuminosityBlocks >.

Definition at line 227 of file DTNoiseTask.cc.

References dqm::implementation::IBooker::bookFloat(), bookHistos(), DTGeometry::chambers(), doTimeBoxHistos, dtGeom, DTTtrig::get(), nEventMonitor, DTTimeUnits::ns, dqm::implementation::NavigatorBase::setCurrentFolder(), tTrigMap, and tTrigStMap.

                                                                                                         {
   ibooker.setCurrentFolder("DT/EventInfo/Counters");
   nEventMonitor = ibooker.bookFloat("nProcessedEventsNoise");
 
   // Loop over all the chambers
   vector<const DTChamber*>::const_iterator ch_it = dtGeom->chambers().begin();
   vector<const DTChamber*>::const_iterator ch_end = dtGeom->chambers().end();
   for (; ch_it != ch_end; ++ch_it) {
     DTChamberId chId = (*ch_it)->id();
     // histo booking
     bookHistos(ibooker, chId);
     vector<const DTSuperLayer*>::const_iterator sl_it = (*ch_it)->superLayers().begin();
     vector<const DTSuperLayer*>::const_iterator sl_end = (*ch_it)->superLayers().end();
     // Loop over the SLs
     for (; sl_it != sl_end; ++sl_it) {
       DTSuperLayerId slId = (*sl_it)->id();
       if (doTimeBoxHistos)
         bookHistos(ibooker, slId);
       float tTrig, tTrigRMS, kFactor;
       tTrigMap->get(slId, tTrig, tTrigRMS, kFactor, DTTimeUnits::ns);
       // tTrig mapping per station
       // check that the ttrig is the lowest of the 3 SLs
       if (tTrigStMap.find(chId) == tTrigStMap.end() ||
           (tTrigStMap.find(chId) != tTrigStMap.end() && tTrig < tTrigStMap[chId]))
         tTrigStMap[chId] = tTrig;
     }
   }
 }

void DTNoiseTask::bookHistos	(	DQMStore::IBooker &	ibooker,
		DTChamberId	chId
	)

private

Definition at line 133 of file DTNoiseTask.cc.

References dqm::implementation::IBooker::book2D(), DTGeometry::chamber(), dtGeom, LayerTriplets::layers(), noiseHistos, DTChamberId::sector(), dqm::implementation::NavigatorBase::setCurrentFolder(), DTChamberId::station(), relativeConstraints::station, AlCaHLTBitMon_QueryRunRegistry::string, DTChamber::superLayers(), and DTChamberId::wheel().

Referenced by bookHistograms().

                                                                        {
   // set the folder
   stringstream wheel;
   wheel << chId.wheel();
   stringstream station;
   station << chId.station();
   stringstream sector;
   sector << chId.sector();
 
   ibooker.setCurrentFolder("DT/05-Noise/Wheel" + wheel.str() +
                            //           "/Station" + station.str() +
                            "/Sector" + sector.str());
 
   // Build the histo name
   string histoName = string("NoiseRate") + "_W" + wheel.str() + "_St" + station.str() + "_Sec" + sector.str();
 
   LogVerbatim("DTNoiseTask") << "[DTNoiseTask]: booking chamber histo:" << endl;
   LogVerbatim("DTNoiseTask") << "              folder "
                              << "DT/05-Noise/Wheel" + wheel.str() +
                                     //     "/Station" + station.str() +
                                     "/Sector" + sector.str() + "/"
                              << endl;
   LogVerbatim("DTNoiseTask") << "              histoName " << histoName << endl;
 
   // Get the chamber from the geometry
   int nWires_max = 0;
   const DTChamber* dtchamber = dtGeom->chamber(chId);
   const vector<const DTSuperLayer*>& superlayers = dtchamber->superLayers();
 
   // Loop over layers and find the max # of wires
   for (vector<const DTSuperLayer*>::const_iterator sl = superlayers.begin(); sl != superlayers.end();
        ++sl) {  // loop over SLs
     vector<const DTLayer*> layers = (*sl)->layers();
     for (vector<const DTLayer*>::const_iterator lay = layers.begin(); lay != layers.end(); ++lay) {  // loop over layers
       int nWires = (*lay)->specificTopology().channels();
       if (nWires > nWires_max)
         nWires_max = nWires;
     }
   }
 
   noiseHistos[chId] =
       ibooker.book2D(histoName, "Noise rate (Hz) per channel", nWires_max, 1, nWires_max + 1, 12, 1, 13);
   noiseHistos[chId]->setAxisTitle("wire number", 1);
   noiseHistos[chId]->setBinLabel(1, "SL1-L1", 2);
   noiseHistos[chId]->setBinLabel(2, "SL1-L2", 2);
   noiseHistos[chId]->setBinLabel(3, "SL1-L3", 2);
   noiseHistos[chId]->setBinLabel(4, "SL1-L4", 2);
   noiseHistos[chId]->setBinLabel(5, "SL2-L1", 2);
   noiseHistos[chId]->setBinLabel(6, "SL2-L2", 2);
   noiseHistos[chId]->setBinLabel(7, "SL2-L3", 2);
   noiseHistos[chId]->setBinLabel(8, "SL2-L4", 2);
   noiseHistos[chId]->setBinLabel(9, "SL3-L1", 2);
   noiseHistos[chId]->setBinLabel(10, "SL3-L2", 2);
   noiseHistos[chId]->setBinLabel(11, "SL3-L3", 2);
   noiseHistos[chId]->setBinLabel(12, "SL3-L4", 2);
 }

void DTNoiseTask::bookHistos	(	DQMStore::IBooker &	ibooker,
		DTSuperLayerId	slId
	)

private

Definition at line 190 of file DTNoiseTask.cc.

References dqm::implementation::IBooker::book1D(), DTSuperLayerId::chamberId(), DTChamberId::sector(), dqm::implementation::NavigatorBase::setCurrentFolder(), DTChamberId::station(), relativeConstraints::station, AlCaHLTBitMon_QueryRunRegistry::string, DTSuperLayerId::superlayer(), tbHistos, and DTChamberId::wheel().

                                                                           {
   // set the folder
   stringstream wheel;
   wheel << slId.chamberId().wheel();
   stringstream station;
   station << slId.chamberId().station();
   stringstream sector;
   sector << slId.chamberId().sector();
   stringstream superlayer;
   superlayer << slId.superlayer();
 
   ibooker.setCurrentFolder("DT/05-Noise/Wheel" + wheel.str() + "/Station" + station.str() + "/Sector" + sector.str());
 
   // Build the histo name
   string histoName =
       string("TimeBox") + "_W" + wheel.str() + "_St" + station.str() + "_Sec" + sector.str() + "_SL" + superlayer.str();
 
   LogVerbatim("DTNoiseTask") << "[DTNoiseTask]: booking SL histo:" << endl;
   LogVerbatim("DTNoiseTask") << "              folder "
                              << "DT/05-Noise/Wheel" + wheel.str() + "/Station" + station.str() + "/Sector" +
                                     sector.str() + "/"
                              << endl;
   LogVerbatim("DTNoiseTask") << "              histoName " << histoName << endl;
 
   tbHistos[slId] = ibooker.book1D(histoName, "Time Box (TDC counts)", 1000, 0, 6000);
 }

void DTNoiseTask::dqmBeginRun	(	const edm::Run &	run,
		const edm::EventSetup &	setup
	)

overrideprotectedvirtual

Reimplemented from DQMOneEDAnalyzer< edm::one::WatchLuminosityBlocks >.

Definition at line 217 of file DTNoiseTask.cc.

References dtGeom, edm::EventSetup::getData(), muonGeomToken_, tTrigMap, and tTrigMapToken_.

                                                                      {
   LogVerbatim("DTNoiseTask") << "[DTNoiseTask]: Begin of run" << endl;
 
   // tTrig Map
   tTrigMap = &setup.getData(tTrigMapToken_);
 
   // get the geometry
   dtGeom = &setup.getData(muonGeomToken_);
 }

void DTNoiseTask::endLuminosityBlock	(	const edm::LuminosityBlock &	lumiSeg,
		const edm::EventSetup &	setup
	)

overrideprotected

Definition at line 256 of file DTNoiseTask.cc.

References alignCSCRings::e, evtNumber, mapEvt, noiseHistos, safeMargin, tTrigStMap, and SplitLinear::upperLimit.

                                                                                             {
   LogVerbatim("DTNoiseTask") << "[DTNoiseTask]: End LS, update rates in all histos" << endl;
 
   // update the rate of all histos (usefull for histos with few entries: they are not updated very often
   for (map<DTChamberId, MonitorElement*>::const_iterator meAndChamber = noiseHistos.begin();
        meAndChamber != noiseHistos.end();
        ++meAndChamber) {
     DTChamberId chId = (*meAndChamber).first;
     TH2F* noise_root = (*meAndChamber).second->getTH2F();
     double upperLimit = tTrigStMap[chId] - safeMargin;
 
     double normalization = 0;
     if (mapEvt.find(chId) != mapEvt.end()) {
       LogVerbatim("DTNoiseTask") << " Ch: " << chId << " Last fill: # of events: " << mapEvt[chId] << endl;
       normalization = 1e-9 * upperLimit * mapEvt[chId];
       // revert back to # of entries
       noise_root->Scale(normalization);
     }
     //check that event analyzed != 0 might happen oline
     if (evtNumber) {
       // set the # of events analyzed until this update
       LogVerbatim("DTNoiseTask") << "          Update for events: " << evtNumber << endl;
       mapEvt[chId] = evtNumber;
       // update the rate
       normalization = double(1e-9 * upperLimit * evtNumber);
       noise_root->Scale(1. / normalization);
     }
   }
 }