#include <HPDNoiseLibraryReader.h>

Public Member Functions
std::vector< std::pair < HcalDetId, const float * > >	getBiasedNoisyHcalDetIds (CLHEP::HepRandomEngine *)

std::vector< std::pair < HcalDetId, const float * > >	getBiasedNoisyHcalDetIds (int timeSliceId, CLHEP::HepRandomEngine *)

double	getIonFeedbackNoise (HcalDetId id, double energy, double bias, CLHEP::HepRandomEngine *)

std::vector< std::pair < HcalDetId, const float * > >	getNoisyHcalDetIds (CLHEP::HepRandomEngine *)

std::vector< std::pair < HcalDetId, const float * > >	getNoisyHcalDetIds (int timeSliceId, CLHEP::HepRandomEngine *)

	HPDNoiseLibraryReader (const edm::ParameterSet &)

	~HPDNoiseLibraryReader ()

Static Public Member Functions
static void	initializeServices ()

Public Attributes
std::vector< float >	theDischargeNoiseRate

std::string	theHPDName

std::vector< float >	theIonFeedbackFirstPeakRate

std::vector< float >	theIonFeedbackSecondPeakRate

std::vector< std::string >	theNames

std::vector< int >	theNoisyPhi

HPDNoiseReader *	theReader

Private Member Functions
void	clearPhi ()

void	fillRates ()

void	getBiasedNoisyPhis (CLHEP::HepRandomEngine *)

HPDNoiseData *	getNoiseData (int iphi, CLHEP::HepRandomEngine *)

void	getNoisyPhis (CLHEP::HepRandomEngine *)

bool	IsNoiseApplicable (int iphi)

std::string	itos (int i)

void	Rannor (double &a, double &b, CLHEP::HepRandomEngine *)

void	shuffleData (int timeSliceId, float *&data)

Detailed Description

Definition at line 40 of file HPDNoiseLibraryReader.h.

Constructor & Destructor Documentation

HPDNoiseLibraryReader::HPDNoiseLibraryReader ( const edm::ParameterSet & iConfig )

Definition at line 25 of file HPDNoiseLibraryReader.cc.

References HPDNoiseReader::allNames(), archive::filepath, fillRates(), edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), theHPDName, theNames, and theReader.

 :theDischargeNoiseRate(0),
 theIonFeedbackFirstPeakRate(0),
 theIonFeedbackSecondPeakRate(0),
 theNoisyPhi(0) {
 
     ParameterSet pSet = iConfig.getParameter < edm::ParameterSet > ("HPDNoiseLibrary");
     FileInPath filepath = pSet.getParameter < edm::FileInPath > ("FileName");
 
     theHPDName = pSet.getUntrackedParameter < string > ("HPDName", "HPD");
     string pName = filepath.fullPath();
 
     if (pName.find(".") == 0)
         pName.erase(0, 2);
     theReader = new HPDNoiseReader(pName);
     theNames = theReader->allNames();   // all 72x2 HPDs
 
     fillRates();
 }

HPDNoiseLibraryReader::~HPDNoiseLibraryReader ( )

Definition at line 45 of file HPDNoiseLibraryReader.cc.

45 {

46 }

Member Function Documentation

void HPDNoiseLibraryReader::clearPhi ( )

private

Definition at line 353 of file HPDNoiseLibraryReader.cc.

References theNoisyPhi.

Referenced by getBiasedNoisyPhis(), and getNoisyPhis().

                                      {
     theNoisyPhi.clear();
 }

void HPDNoiseLibraryReader::fillRates ( )

private

Definition at line 48 of file HPDNoiseLibraryReader.cc.

References dtNoiseDBValidation_cfg::cerr, HPDNoiseReader::dischargeRate(), HPDNoiseReader::getHandle(), i, HPDNoiseReader::ionFeedbackFirstPeakRate(), HPDNoiseReader::ionFeedbackSecondPeakRate(), theDischargeNoiseRate, theIonFeedbackFirstPeakRate, theIonFeedbackSecondPeakRate, theNames, theReader, and HPDNoiseReader::valid().

Referenced by HPDNoiseLibraryReader().

                                       {
     for (size_t i = 0; i < theNames.size(); ++i) {
         HPDNoiseReader::Handle hpdObj = theReader->getHandle(theNames[i]);
         if (theReader->valid(hpdObj)) {
             theDischargeNoiseRate.push_back(theReader->dischargeRate(hpdObj));
             theIonFeedbackFirstPeakRate.push_back(theReader->ionFeedbackFirstPeakRate(hpdObj));
             theIonFeedbackSecondPeakRate.push_back(theReader->ionFeedbackSecondPeakRate(hpdObj));
         } else {
             std::cerr << "HPD Handle Object is not valid!" << endl;
         }
     }
 }

vector< pair< HcalDetId, const float * > > HPDNoiseLibraryReader::getBiasedNoisyHcalDetIds ( CLHEP::HepRandomEngine * engine )

Definition at line 196 of file HPDNoiseLibraryReader.cc.

References data, getBiasedNoisyPhis(), HPDNoiseData::getDataFrame(), HPDNoiseDataFrame::getFrame(), getNoiseData(), i, HPDNoiseDataFrame::id(), query::result, HPDNoiseData::size(), and theNoisyPhi.

                                                                                                                        {
 
     vector < pair < HcalDetId, const float *> >result;
 
     // decide which phi are noisy by using noise rates 
     // and random numbers (to be called for each event)
     // at least one Phi is always noisy.
     getBiasedNoisyPhis(engine);
     for (int i = 0; i < int (theNoisyPhi.size()); ++i) {
         int iphi = theNoisyPhi[i];
         HPDNoiseData *data;
 
         data = getNoiseData(iphi, engine);
         for (unsigned int i = 0; i < data->size(); ++i) {
             result.emplace_back(data->getDataFrame(i).id(), data->getDataFrame(i).getFrame());
         }
     }
     return result;
 }

vector< pair< HcalDetId, const float * > > HPDNoiseLibraryReader::getBiasedNoisyHcalDetIds	(	int	timeSliceId,
		CLHEP::HepRandomEngine *	engine
	)

Definition at line 173 of file HPDNoiseLibraryReader.cc.

References data, getBiasedNoisyPhis(), HPDNoiseData::getDataFrame(), HPDNoiseDataFrame::getFrame(), getNoiseData(), i, HPDNoiseDataFrame::id(), query::result, shuffleData(), HPDNoiseData::size(), and theNoisyPhi.

                                                                                                                                         {
 
     vector < pair < HcalDetId, const float *> >result;
 
     // decide which phi are noisy by using noise rates 
     // and random numbers (to be called for each event)
     // at least one Phi is always noisy.
     getBiasedNoisyPhis(engine);
     for (int i = 0; i < int (theNoisyPhi.size()); ++i) {
         int iphi = theNoisyPhi[i];
         HPDNoiseData *data;
 
         data = getNoiseData(iphi, engine);
         for (unsigned int i = 0; i < data->size(); ++i) {
         float* data_ = const_cast<float*>(data->getDataFrame(i).getFrame());
         shuffleData(timeSliceId, data_);
         const float* _data_ =const_cast<const float*>(data_);
             result.emplace_back(data->getDataFrame(i).id(), _data_);
         }
     }
     return result;
 }

void HPDNoiseLibraryReader::getBiasedNoisyPhis ( CLHEP::HepRandomEngine * engine )

private

Definition at line 113 of file HPDNoiseLibraryReader.cc.

References clearPhi(), i, theDischargeNoiseRate, and theNoisyPhi.

Referenced by getBiasedNoisyHcalDetIds().

                                                                            {
 
     clearPhi();
     double rndm[144];
 
     CLHEP::RandFlat::shootArray(engine, 144, rndm);
     for (int i = 0; i < 144; ++i) {
         if (rndm[i] < theDischargeNoiseRate[i]) {
             theNoisyPhi.push_back(i + 1);
         }
     }
     // make sure one HPD is always noisy
     if (theNoisyPhi.size() == 0) {
         int iPhi = (CLHEP::RandFlat::shootInt(engine, 144)) + 1; // integer from interval [0-144[ + 1
 
         theNoisyPhi.push_back(iPhi);
     }
 }

double HPDNoiseLibraryReader::getIonFeedbackNoise	(	HcalDetId	id,
		double	energy,
		double	bias,
		CLHEP::HepRandomEngine *	engine
	)

HPD Ion feedback simulation based on LED data. A simple simulation which uses gaussian fit to data. biased = false ==> HPD noise from Ion Feedback only, unbiased biased = true ==> HPD noise from Ion Feedback only, biased (rate is X times larger than nominal rate)

Definition at line 216 of file HPDNoiseLibraryReader.cc.

References a, b, edm::hlt::Exception, j, p4, pe2Charge, Rannor(), theIonFeedbackFirstPeakRate, and theIonFeedbackSecondPeakRate.

                                                                                                                         {
 
     // constants for simulation/parameterization
     double pe2Charge = 0.333333;    // fC/p.e.
     double GeVperfC = 0.177;    // in unit GeV/fC and this will be updated when it start reading from DB.
     double PedSigma = 0.8;
     double noise = 0.;          // fC
 
     int iphi = (id.ieta() > 0) ? (id.iphi()) : (id.iphi() + 72);
     double rateInTail = theIonFeedbackFirstPeakRate[iphi - 1];
     double rateInSecondTail = theIonFeedbackSecondPeakRate[iphi - 1];
 
     if (bias != 0.) {
         rateInTail = rateInTail * bias;
         rateInSecondTail = rateInSecondTail * bias;
     } else {
         edm::LogError("HPDNoise") << "HPDNoise: ion feedback error (biased or unbiased selection)." << bias << " failed";
         throw cms::Exception("Unknown", "biase selection ")
         << "Usage of " << bias << " fails\n";
     }
     double Charge = energy / GeVperfC;
 
     // three gauss fit is applied to data to get ion feedback distribution
     // the script is at neutralino: /home/tyetkin/work/hpd_noise/PlotFromPelin.C
     // a new fit woth double-sigmoids is under way.
     // parameters (in fC)
     // first gaussian
     // double p0 = 9.53192e+05;
     // double p1 = -3.13653e-01;
     // double p2 = 2.78350e+00;
 
     // second gaussian
     // double p3 = 2.41611e+03;
     double p4 = 2.06117e+01;
     double p5 = 1.09239e+01;
 
     // third gaussian
     // double p6 = 3.42793e+01;
     double p7 = 5.45548e+01;
     double p8 = 1.59696e+01;
 
     if (Charge > 3 * PedSigma) {    // 3 sigma away from pedestal mean
         int npe = int (Charge / pe2Charge);
         double a = 0.;
         double b = 0.;
 
         for (int j = 0; j < npe; ++j) {
             double probability = CLHEP::RandFlat::shoot(engine);
 
             if (probability < rateInTail) { // total tail
                 if (probability < rateInSecondTail) {   // second tail
                     Rannor(a, b, engine);
                     noise += b * p8 + p7;
                 } else {
                     Rannor(a, b, engine);
                     noise += b * p5 + p4;
                 }
             }
         }
         // add pedestal 
         if (noise > 0.)
             noise += CLHEP::RandGaussQ::shoot(engine, 0, 2 * PedSigma);
     }
     return (noise * GeVperfC);  // returns noise in GeV.
 
 }

HPDNoiseData * HPDNoiseLibraryReader::getNoiseData	(	int	iphi,
		CLHEP::HepRandomEngine *	engine
	)

private

Definition at line 61 of file HPDNoiseLibraryReader.cc.

References dtNoiseDBValidation_cfg::cerr, data, HPDNoiseReader::getEntry(), HPDNoiseReader::getHandle(), IsNoiseApplicable(), itos(), mergeVDriftHistosByStation::name, AlCaHLTBitMon_QueryRunRegistry::string, theHPDName, theReader, HPDNoiseReader::totalEntries(), HPDNoiseReader::valid(), and ecaldqm::zside().

Referenced by getBiasedNoisyHcalDetIds(), and getNoisyHcalDetIds().

                                                                                         {
 
 
     HPDNoiseData *data = 0; //data->size() is checked wherever actually used  
 
     // make sure that iphi from HcalDetId is found noisy at first.
     // In other words, be sure that iphi is in the collection of
     // noisy Phis
     if (!(IsNoiseApplicable(iphi)))         
         return data;
 
     int zside = 1;
 
     if (iphi > 72) {
         iphi = iphi - 72;
         zside = -1;
     }
     std::string name;
     if (zside == 1) {
         name = "ZPlus" + theHPDName + itos(iphi);
     } else if (zside == -1) {
         name = "ZMinus" + theHPDName + itos(iphi);
     } else {
         cerr << " ZSide Calculation Error." << endl;
     }
     HPDNoiseReader::Handle hpdObj = theReader->getHandle(name);
     if (theReader->valid(hpdObj)) {
         // randomly select one entry from library for this HPD
         unsigned long entry = CLHEP::RandFlat::shootInt(engine, theReader->totalEntries(hpdObj));
 
         theReader->getEntry(hpdObj, entry, &data);
     } else {
         std::cerr << " HPD Name in the library is not valid." << std::endl;
     }
     return data;
 }

vector< pair< HcalDetId, const float * > > HPDNoiseLibraryReader::getNoisyHcalDetIds ( CLHEP::HepRandomEngine * engine )

Definition at line 132 of file HPDNoiseLibraryReader.cc.

References data, HPDNoiseData::getDataFrame(), HPDNoiseDataFrame::getFrame(), getNoiseData(), getNoisyPhis(), i, HPDNoiseDataFrame::id(), query::result, HPDNoiseData::size(), and theNoisyPhi.

Referenced by HPDNoiseGenerator::fillNoiseSignals().

                                                                                                               {
 
     vector <pair< HcalDetId, const float *> >result;
 
     // decide which phi are noisy by using noise rates 
     // and random numbers (to be called for each event)
     getNoisyPhis(engine);
     for (int i = 0; i < int (theNoisyPhi.size()); ++i) {
         int iphi = theNoisyPhi[i];
         HPDNoiseData *data;
 
         data = getNoiseData(iphi, engine);
         for (unsigned int i = 0; i < data->size(); ++i) {
 
             result.emplace_back(data->getDataFrame(i).id(), data->getDataFrame(i).getFrame());
         }
     }
     return result;
 }

vector< pair< HcalDetId, const float * > > HPDNoiseLibraryReader::getNoisyHcalDetIds	(	int	timeSliceId,
		CLHEP::HepRandomEngine *	engine
	)

Definition at line 152 of file HPDNoiseLibraryReader.cc.

References data, HPDNoiseData::getDataFrame(), HPDNoiseDataFrame::getFrame(), getNoiseData(), getNoisyPhis(), i, HPDNoiseDataFrame::id(), query::result, shuffleData(), HPDNoiseData::size(), and theNoisyPhi.

 {
     vector <pair< HcalDetId, const float *> >result;
     // decide which phi are noisy by using noise rates 
     // and random numbers (to be called for each event)
     getNoisyPhis(engine);
     for (int i = 0; i < int (theNoisyPhi.size()); ++i) {
         int iphi = theNoisyPhi[i];
         HPDNoiseData *data;
 
         data = getNoiseData(iphi, engine);
         for (unsigned int i = 0; i < data->size(); ++i) {
         float* data_ = const_cast<float*>(data->getDataFrame(i).getFrame());
         shuffleData(timeSliceId, data_);
         const float* _data_ =const_cast<const float*>(data_);
             result.emplace_back(data->getDataFrame(i).id(), _data_);
         }
     }
     return result;
 
 }

void HPDNoiseLibraryReader::getNoisyPhis ( CLHEP::HepRandomEngine * engine )

private

Definition at line 99 of file HPDNoiseLibraryReader.cc.

References clearPhi(), i, theDischargeNoiseRate, and theNoisyPhi.

Referenced by getNoisyHcalDetIds().

                                                                      {
 
     clearPhi();
     double rndm[144];
 
     CLHEP::RandFlat::shootArray(engine, 144, rndm);
 
     for (int i = 0; i < 144; ++i) {
         if (rndm[i] < theDischargeNoiseRate[i]) {
             theNoisyPhi.push_back(i + 1);
         }
     }
 }

static void HPDNoiseLibraryReader::initializeServices ( )

static

bool HPDNoiseLibraryReader::IsNoiseApplicable ( int iphi )

private

Definition at line 283 of file HPDNoiseLibraryReader.cc.

References spr::find(), and theNoisyPhi.

Referenced by getNoiseData().

                                                       {
 
     bool isAccepted = false;
     vector < int >::iterator phi_iter;
 
     phi_iter = find(theNoisyPhi.begin(), theNoisyPhi.end(), iphi);
     if (phi_iter != theNoisyPhi.end()) {
         isAccepted = true;
     }
     return isAccepted;
 }

string HPDNoiseLibraryReader::itos ( int i )

private

Definition at line 346 of file HPDNoiseLibraryReader.cc.

References i, and alignCSCRings::s.

Referenced by getNoiseData().

                                         {
     stringstream s;
 
     s << i;
     return s.str();
 }

void HPDNoiseLibraryReader::Rannor	(	double &	a,
		double &	b,
		CLHEP::HepRandomEngine *	engine
	)

private

Definition at line 333 of file HPDNoiseLibraryReader.cc.

References alignCSCRings::r, x, detailsBasic3DVector::y, and detailsBasic3DVector::z.

Referenced by getIonFeedbackNoise().

                                                                                      {
     double r,
       x,
       y,
       z;
 
     y = CLHEP::RandFlat::shoot(engine);
     z = CLHEP::RandFlat::shoot(engine);
     x = z * 6.28318530717958623;
     r = TMath::Sqrt(-2 * TMath::Log(y));
     a = r * TMath::Sin(x);
     b = r * TMath::Cos(x);
 }

void HPDNoiseLibraryReader::shuffleData	(	int	timeSliceId,
		float *&	data
	)

private

Definition at line 294 of file HPDNoiseLibraryReader.cc.

References createTree::dd, i, gen::k, and max().

Referenced by getBiasedNoisyHcalDetIds(), and getNoisyHcalDetIds().

 {
    if(timeSliceId == -1 || (timeSliceId>=10)) return;
    //make a local copy of input data
    float Data[10] = {0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
    for(int i=0;i<10;++i){
        Data[i] = data[i];
    }
    int ts_max = -1;
    float max = -999.;
    for(int i=0;i<10;++i){
        if(Data[i]>max){
            max = data[i];
        ts_max = i;
        }
    }
    if((ts_max == -1)){//couldn't find ts_max, return the same value.
        return;
    }else{
        // always shift the noise to the right by putting zeroes to the previous slices.
        // the noise is pedestal subtracted. 0 value is acceptable.
        int k = -1;
        for(int i=0;i<10;++i){
        data[i] = 0.;
        int newIdx = timeSliceId+k;
        float dd = 0.;
        if(newIdx < 10){
            data[newIdx] = Data[ts_max+k];
            dd = Data[ts_max+k];
            i = newIdx;
        }
        data[i] = dd;
        ++k;
        }
                                                        
    }
 }