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SiPixelDigitizerAlgorithm Class Reference

#include <SiPixelDigitizerAlgorithm.h>

List of all members.

Classes

class  Amplitude
class  CalParameters
class  EnergyDepositUnit
class  SignalPoint

Public Member Functions

void fillDeadModules (const edm::EventSetup &es)
void fillLorentzAngle (const edm::EventSetup &es)
void fillMapandGeom (const edm::EventSetup &es)
void init (const edm::EventSetup &es)
std::vector< PixelDigiSimLinkmake_link ()
edm::DetSet< PixelDigi >
::collection_type 
run (const std::vector< PSimHit > &input, PixelGeomDetUnit *pixdet, GlobalVector)
 SiPixelDigitizerAlgorithm (const edm::ParameterSet &conf, CLHEP::HepRandomEngine &)
 ~SiPixelDigitizerAlgorithm ()

Private Types

typedef GloballyPositioned
< double > 
Frame
typedef std::vector
< edm::ParameterSet
Parameters
typedef signal_map_type::iterator signal_map_iterator
typedef std::map< int,
Amplitude, std::less< int > > 
signal_map_type
typedef std::map< unsigned int,
std::vector< float >
, std::less< unsigned int > > 
simlink_map

Private Member Functions

void add_noise ()
std::vector< PixelDigidigitize (PixelGeomDetUnit *det)
void drift (const PSimHit &hit)
LocalVector DriftDirection ()
void fluctuateEloss (int particleId, float momentum, float eloss, float length, int NumberOfSegments, float elossVector[])
void induce_signal (const PSimHit &hit)
void make_digis ()
float missCalibrate (int col, int row, float amp) const
void module_killing_conf ()
void module_killing_DB ()
void pixel_inefficiency ()
void pixel_inefficiency_db ()
void primary_ionization (const PSimHit &hit)

Private Attributes

GlobalVector _bfield
std::vector< SignalPoint_collection_points
const PixelGeomDetUnit_detp
std::vector< EnergyDepositUnit_ionization_points
std::vector< PSimHit_PixelHits
signal_map_type _signal
bool addChargeVCALSmearing
bool addNoise
bool addNoisyPixels
bool addPixelInefficiency
bool addThresholdSmearing
bool alpha2Order
float BPix_p0
float BPix_p1
float BPix_p2
float BPix_p3
std::map< int, CalParameters,
std::less< int > > 
calmap
float ClusterWidth
edm::ParameterSet conf_
Parameters DeadModules
uint32_t detID
float Dist300
bool doMissCalibrate
double electronsPerVCAL
double electronsPerVCAL_Offset
CLHEP::RandFlat * flatDistribution_
SiG4UniversalFluctuationfluctuate
bool fluctuateCharge
float FPix_p0
float FPix_p1
float FPix_p2
float FPix_p3
CLHEP::RandGaussQ * gaussDistribution_
CLHEP::RandGaussQ * gaussDistributionVCALNoise_
edm::ESHandle< TrackerGeometrygeom_
float GeVperElectron
std::vector< PixelDigiinternal_coll
std::vector< PixelDigiSimLinklink_coll
float lorentzAngle
edm::ESHandle
< SiPixelFedCablingMap
map_
float moduleThickness
int NumberOfSegments
int numColumns
int numRows
PixelIndicespIndexConverter
float PixelChipEff
float PixelChipEfficiency
float PixelColEff
float PixelColEfficiency
float PixelEff
float PixelEfficiency
bool pixelInefficiency
CLHEP::HepRandomEngine & rndEngine
float Sigma0
simlink_map simi
edm::ESHandle< SiPixelQualitySiPixelBadModule_
edm::ESHandle
< SiPixelLorentzAngle
SiPixelLorentzAngle_
CLHEP::RandGaussQ * smearedChargeDistribution_
CLHEP::RandGaussQ * smearedThreshold_BPix_
CLHEP::RandGaussQ * smearedThreshold_FPix_
float tanLorentzAnglePerTesla_BPix
float tanLorentzAnglePerTesla_FPix
int theAdcFullScale
int theColsInChip
float theElectronPerADC
float theGainSmearing
CLHEP::RandGaussQ * theGaussianDistribution
float theNoiseInElectrons
GaussianTailNoiseGeneratortheNoiser
float theOffsetSmearing
float thePixelChipEfficiency [6]
float thePixelColEfficiency [6]
float thePixelEfficiency [6]
int thePixelLuminosity
float thePixelThreshold
float thePixelThresholdInE
float theReadoutNoise
int theRowsInChip
SiPixelGainCalibrationOfflineSimServicetheSiPixelGainCalibrationService_
float theSmearedChargeRMS
float theThresholdInE_BPix
float theThresholdInE_FPix
double theThresholdSmearing_BPix
double theThresholdSmearing_FPix
float theTofLowerCut
float theTofUpperCut
double tMax
const PixelTopologytopol
bool use_deadmodule_DB_
bool use_ineff_from_db_
bool use_LorentzAngle_DB_
bool use_module_killing_

Detailed Description

Definition at line 59 of file SiPixelDigitizerAlgorithm.h.


Member Typedef Documentation

Definition at line 231 of file SiPixelDigitizerAlgorithm.h.

Definition at line 90 of file SiPixelDigitizerAlgorithm.h.

typedef signal_map_type::iterator SiPixelDigitizerAlgorithm::signal_map_iterator [private]

Definition at line 228 of file SiPixelDigitizerAlgorithm.h.

typedef std::map< int, Amplitude, std::less<int> > SiPixelDigitizerAlgorithm::signal_map_type [private]

Definition at line 227 of file SiPixelDigitizerAlgorithm.h.

typedef std::map<unsigned int, std::vector<float>,std::less<unsigned int> > SiPixelDigitizerAlgorithm::simlink_map [private]

Definition at line 230 of file SiPixelDigitizerAlgorithm.h.


Constructor & Destructor Documentation

SiPixelDigitizerAlgorithm::SiPixelDigitizerAlgorithm ( const edm::ParameterSet conf,
CLHEP::HepRandomEngine &  eng 
)

Definition at line 141 of file SiPixelDigitizerAlgorithm.cc.

References addChargeVCALSmearing, addNoise, addNoisyPixels, addThresholdSmearing, alpha2Order, BPix_p0, BPix_p1, BPix_p2, BPix_p3, calmap, dtNoiseDBValidation_cfg::cerr, PixelIndices::channelToPixelROC(), ClusterWidth, conf_, gather_cfg::cout, Dist300, doMissCalibrate, electronsPerVCAL, electronsPerVCAL_Offset, lut2db_cfg::filename, flatDistribution_, fluctuate, fluctuateCharge, FPix_p0, FPix_p1, FPix_p2, FPix_p3, gaussDistribution_, gaussDistributionVCALNoise_, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), GeVperElectron, i, recoMuon::in, geometryCSVtoXML::line, LogDebug, mergeVDriftHistosByStation::name, NumberOfSegments, AlCaHLTBitMon_ParallelJobs::p, SiPixelDigitizerAlgorithm::CalParameters::p0, SiPixelDigitizerAlgorithm::CalParameters::p1, SiPixelDigitizerAlgorithm::CalParameters::p2, SiPixelDigitizerAlgorithm::CalParameters::p3, fitWZ::par0, pixelInefficiency, PixelIndices::pixelToChannelROC(), rndEngine, Sigma0, smearedThreshold_BPix_, smearedThreshold_FPix_, theAdcFullScale, theElectronPerADC, theGainSmearing, theNoiseInElectrons, theNoiser, theOffsetSmearing, thePixelChipEfficiency, thePixelColEfficiency, thePixelEfficiency, thePixelLuminosity, theReadoutNoise, theThresholdInE_BPix, theThresholdInE_FPix, theThresholdSmearing_BPix, theThresholdSmearing_FPix, theTofLowerCut, theTofUpperCut, and tMax.

                                                                                                           :
  conf_(conf) , fluctuate(0), theNoiser(0), pIndexConverter(0),
  use_ineff_from_db_(conf_.getParameter<bool>("useDB")),
  use_module_killing_(conf_.getParameter<bool>("killModules")), // boolean to kill or not modules
  use_deadmodule_DB_(conf_.getParameter<bool>("DeadModules_DB")), // boolean to access dead modules from DB
  use_LorentzAngle_DB_(conf_.getParameter<bool>("LorentzAngle_DB")), // boolean to access Lorentz angle from DB
  theSiPixelGainCalibrationService_(0),rndEngine(eng)
{
  using std::cout;
  using std::endl;

  // Common pixel parameters
  // These are parameters which are not likely to be changed
  NumberOfSegments = 20; // Default number of track segment divisions
  ClusterWidth = 3.;     // Charge integration spread on the collection plane
  GeVperElectron = 3.61E-09; // 1 electron =3.61eV, 1keV=277e, mod 9/06 d.k.
  Sigma0 = 0.00037;           // Charge diffusion constant 7->3.7
  Dist300 = 0.0300;          //   normalized to 300micron Silicon

  alpha2Order = conf_.getParameter<bool>("Alpha2Order");   // switch on/off of E.B effect

  // get external parameters:
  // ADC calibration 1adc count = 135e.
  // Corresponds to 2adc/kev, 270[e/kev]/135[e/adc]=2[adc/kev]
  // Be carefull, this parameter is also used in SiPixelDet.cc to
  // calculate the noise in adc counts from noise in electrons.
  // Both defaults should be the same.
  theElectronPerADC=conf_.getParameter<double>("ElectronPerAdc");

  // ADC saturation value, 255=8bit adc.
  //theAdcFullScale=conf_.getUntrackedParameter<int>("AdcFullScale",255);
  theAdcFullScale=conf_.getParameter<int>("AdcFullScale");

  // Pixel threshold in units of noise:
  // thePixelThreshold=conf_.getParameter<double>("ThresholdInNoiseUnits");
  // Pixel threshold in electron units.
  theThresholdInE_FPix=conf_.getParameter<double>("ThresholdInElectrons_FPix");
  theThresholdInE_BPix=conf_.getParameter<double>("ThresholdInElectrons_BPix");

  // Add threshold gaussian smearing:
  addThresholdSmearing = conf_.getParameter<bool>("AddThresholdSmearing");
  theThresholdSmearing_FPix = conf_.getParameter<double>("ThresholdSmearing_FPix");
  theThresholdSmearing_BPix = conf_.getParameter<double>("ThresholdSmearing_BPix");

  // signal response new parameterization: split Fpix and BPix
  FPix_p0 = conf_.getParameter<double>("FPix_SignalResponse_p0");
  FPix_p1 = conf_.getParameter<double>("FPix_SignalResponse_p1");
  FPix_p2 = conf_.getParameter<double>("FPix_SignalResponse_p2");
  FPix_p3 = conf_.getParameter<double>("FPix_SignalResponse_p3");

  BPix_p0 = conf_.getParameter<double>("BPix_SignalResponse_p0");
  BPix_p1 = conf_.getParameter<double>("BPix_SignalResponse_p1");
  BPix_p2 = conf_.getParameter<double>("BPix_SignalResponse_p2");
  BPix_p3 = conf_.getParameter<double>("BPix_SignalResponse_p3");

  // electrons to VCAL conversion needed in misscalibrate()
  electronsPerVCAL = conf_.getParameter<double>("ElectronsPerVcal");
  electronsPerVCAL_Offset = conf_.getParameter<double>("ElectronsPerVcal_Offset");

  // Add noise
  addNoise=conf_.getParameter<bool>("AddNoise");

  // Smear the pixel charge with a gaussian which RMS is a function of the
  // pixel charge (Danek's study)
  addChargeVCALSmearing=conf_.getParameter<bool>("ChargeVCALSmearing");

  // Add noisy pixels
  addNoisyPixels=conf_.getParameter<bool>("AddNoisyPixels");
  // Noise in electrons:
  // Pixel cell noise, relevant for generating noisy pixels
  theNoiseInElectrons=conf_.getParameter<double>("NoiseInElectrons");
  // Fill readout noise, including all readout chain, relevant for smearing
  //theReadoutNoise=conf_.getUntrackedParameter<double>("ReadoutNoiseInElec",500.);
  theReadoutNoise=conf_.getParameter<double>("ReadoutNoiseInElec");

  //theTofCut 12.5, cut in particle TOD +/- 12.5ns
  //theTofCut=conf_.getUntrackedParameter<double>("TofCut",12.5);
  theTofLowerCut=conf_.getParameter<double>("TofLowerCut");
  theTofUpperCut=conf_.getParameter<double>("TofUpperCut");

  // Fluctuate charge in track subsegments
  fluctuateCharge=conf_.getUntrackedParameter<bool>("FluctuateCharge",true);

  // delta cutoff in MeV, has to be same as in OSCAR=0.030/cmsim=1.0 MeV
  //tMax = 0.030; // In MeV.
  //tMax =conf_.getUntrackedParameter<double>("DeltaProductionCut",0.030);
  tMax =conf_.getParameter<double>("DeltaProductionCut");

  // Control the pixel inefficiency
  thePixelLuminosity=conf_.getParameter<int>("AddPixelInefficiency");

  // Get the constants for the miss-calibration studies
  doMissCalibrate=conf_.getParameter<bool>("MissCalibrate"); // Enable miss-calibration
  theGainSmearing=conf_.getParameter<double>("GainSmearing"); // sigma of the gain smearing
  theOffsetSmearing=conf_.getParameter<double>("OffsetSmearing"); //sigma of the offset smearing

  //pixel inefficiency
 if (thePixelLuminosity==-20){
                     thePixelColEfficiency[0] = conf_.getParameter<double>("thePixelColEfficiency_BPix1");
                     thePixelColEfficiency[1] = conf_.getParameter<double>("thePixelColEfficiency_BPix2");
                     thePixelColEfficiency[2] = conf_.getParameter<double>("thePixelColEfficiency_BPix3");
                     thePixelColEfficiency[3] = conf_.getParameter<double>("thePixelColEfficiency_FPix1");
                     thePixelColEfficiency[4] = conf_.getParameter<double>("thePixelColEfficiency_FPix2"); // Not used, but leave it in in case we want use it to later
                     cout<<"\nReading in custom Pixel efficiencies "<<thePixelColEfficiency[0]<<" , "<<thePixelColEfficiency[1]<<" , "
                                   <<thePixelColEfficiency[2]<<" , "<<thePixelColEfficiency[3]<<" , "<<thePixelColEfficiency[4]<<"\n";
                     if (thePixelColEfficiency[0]<=0.5) {cout <<"\n\nDid you mean to set the Pixel efficiency at "<<thePixelColEfficiency[0]
                                                              <<", or did you mean for this to be the inefficiency?\n\n\n";}
                     }
  // the first 3 settings [0],[1],[2] are for the barrel pixels
  // the next  3 settings [3],[4],[5] are for the endcaps (undecided how)

  if(thePixelLuminosity==-1) {  // No inefficiency, all 100% efficient
    pixelInefficiency=false;
    for (int i=0; i<6;i++) {
      thePixelEfficiency[i]     = 1.;  // pixels = 100%
      thePixelColEfficiency[i]  = 1.;  // columns = 100%
      thePixelChipEfficiency[i] = 1.; // chips = 100%
    }

    // include only the static (non rate depedent) efficiency
    // Usefull for very low rates (luminosity)
  } else if(thePixelLuminosity==0) { // static effciency
    pixelInefficiency=true;
    // Default efficiencies
    for (int i=0; i<6;i++) {
      if(i<3) {  // For the barrel
        // Assume 1% inefficiency for single pixels,
        // this is given by faulty bump-bonding and seus.
        thePixelEfficiency[i]     = 1.-0.001;  // pixels = 99.9%
        // For columns make 0.1% default.
        thePixelColEfficiency[i]  = 1.-0.001;  // columns = 99.9%
        // A flat 0.1% inefficiency due to lost rocs
        thePixelChipEfficiency[i] = 1.-0.001; // chips = 99.9%
      } else { // For the endcaps
        // Assume 1% inefficiency for single pixels,
        // this is given by faulty bump-bonding and seus.
        thePixelEfficiency[i]     = 1.-0.001;  // pixels = 99.9%
        // For columns make 0.1% default.
        thePixelColEfficiency[i]  = 1.-0.001;  // columns = 99.9%
        // A flat 0.1% inefficiency due to lost rocs
        thePixelChipEfficiency[i] = 1.-0.001; // chips = 99.9%
      }
    }

    // Include also luminosity rate dependent inefficieny
  } else if(thePixelLuminosity>0) { // Include effciency
    pixelInefficiency=true;
    // Default efficiencies
    for (int i=0; i<6;i++) {
      if(i<3) { // For the barrel
        // Assume 1% inefficiency for single pixels,
        // this is given by faulty bump-bonding and seus.
        thePixelEfficiency[i]     = 1.-0.01;  // pixels = 99%
        // For columns make 1% default.
        thePixelColEfficiency[i]  = 1.-0.01;  // columns = 99%
        // A flat 0.25% inefficiency due to lost data packets from TBM
        thePixelChipEfficiency[i] = 1.-0.0025; // chips = 99.75%
      } else { // For the endcaps
        // Assume 1% inefficiency for single pixels,
        // this is given by faulty bump-bonding and seus.
        thePixelEfficiency[i]     = 1.-0.01;  // pixels = 99%
        // For columns make 1% default.
        thePixelColEfficiency[i]  = 1.-0.01;  // columns = 99%
        // A flat 0.25% inefficiency due to lost data packets from TBM
        thePixelChipEfficiency[i] = 1.-0.0025; // chips = 99.75%
      }
    }

    // Special cases ( High-lumi for 4cm layer) where the readout losses are higher
    if(thePixelLuminosity==10) { // For high luminosity, bar layer 1
      thePixelColEfficiency[0] = 1.-0.034; // 3.4% for r=4 only
      thePixelEfficiency[0]    = 1.-0.015; // 1.5% for r=4
    }

  } // end the pixel inefficiency part

  // Init the random number services
  if(addNoise || thePixelLuminosity || fluctuateCharge || addThresholdSmearing ) {
    gaussDistribution_ = new CLHEP::RandGaussQ(rndEngine, 0., theReadoutNoise);
    gaussDistributionVCALNoise_ = new CLHEP::RandGaussQ(rndEngine, 0., 1.);
    flatDistribution_ = new CLHEP::RandFlat(rndEngine, 0., 1.);

    if(addNoise) {
      theNoiser = new GaussianTailNoiseGenerator(rndEngine);
    }

    if(fluctuateCharge) {
      fluctuate = new SiG4UniversalFluctuation(rndEngine);
    }

    // Threshold smearing with gaussian distribution:
    if(addThresholdSmearing) {
      smearedThreshold_FPix_ = new CLHEP::RandGaussQ(rndEngine, theThresholdInE_FPix , theThresholdSmearing_FPix);
      smearedThreshold_BPix_ = new CLHEP::RandGaussQ(rndEngine, theThresholdInE_BPix , theThresholdSmearing_BPix);
    }
    } //end Init the random number services


  // Prepare for the analog amplitude miss-calibration
  if(doMissCalibrate) {
    LogDebug ("PixelDigitizer ")
      << " miss-calibrate the pixel amplitude ";

    const bool ReadCalParameters = false;
    if(ReadCalParameters) {   // Read the calibration files from file
      // read the calibration constants from a file (testing only)
      ifstream in_file;  // data file pointer
      char filename[80] = "phCalibrationFit_C0.dat";

      in_file.open(filename, ios::in ); // in C++
      if(in_file.bad()) {
        cout << " File not found " << endl;
        return; // signal error
      }
      cout << " file opened : " << filename << endl;

      char line[500];
      for (int i = 0; i < 3; i++) {
        in_file.getline(line, 500,'\n');
        cout<<line<<endl;
      }

      cout << " test map" << endl;

      float par0,par1,par2,par3;
      int colid,rowid;
      string name;
      // Read MC tracks
      for(int i=0;i<(52*80);i++)  { // loop over tracks
        in_file >> par0 >> par1 >> par2 >> par3 >> name >> colid
                >> rowid;
        if(in_file.bad()) { // check for errors
          cerr << "Cannot read data file" << endl;
          return;
        }
        if( in_file.eof() != 0 ) {
          cerr << in_file.eof() << " " << in_file.gcount() << " "
               << in_file.fail() << " " << in_file.good() << " end of file "
               << endl;
          return;
        }

        //cout << " line " << i << " " <<par0<<" "<<par1<<" "<<par2<<" "<<par3<<" "
        //   <<colid<<" "<<rowid<<endl;

        CalParameters onePix;
        onePix.p0=par0;
        onePix.p1=par1;
        onePix.p2=par2;
        onePix.p3=par3;

        // Convert ROC pixel index to channel
        int chan = PixelIndices::pixelToChannelROC(rowid,colid);
        calmap.insert(pair<int,CalParameters>(chan,onePix));

        // Testing the index conversion, can be skipped
        pair<int,int> p = PixelIndices::channelToPixelROC(chan);
        if(rowid!=p.first) cout<<" wrong channel row "<<rowid<<" "<<p.first<<endl;
        if(colid!=p.second) cout<<" wrong channel col "<<colid<<" "<<p.second<<endl;

      } // pixel loop in a ROC

      cout << " map size  " << calmap.size() <<" max "<<calmap.max_size() << " "
           <<calmap.empty()<< endl;

//     cout << " map size  " << calmap.size()  << endl;
//     map<int,CalParameters,less<int> >::iterator ix,it;
//     map<int,CalParameters,less<int> >::const_iterator ip;
//     for (ix = calmap.begin(); ix != calmap.end(); ++ix) {
//       int i = (*ix).first;
//       pair<int,int> p = channelToPixelROC(i);
//       it  = calmap.find(i);
//       CalParameters y  = (*it).second;
//       CalParameters z = (*ix).second;
//       cout << i <<" "<<p.first<<" "<<p.second<<" "<<y.p0<<" "<<z.p0<<" "<<calmap[i].p0<<endl;

//       //int dummy=0;
//       //cin>>dummy;
//     }

    } // end if readparameters
  } // end if missCalibration

  LogInfo ("PixelDigitizer ") <<"SiPixelDigitizerAlgorithm constructed"
                              <<"Configuration parameters:"
                              << "Threshold/Gain = "
                              << "threshold in electron FPix = "
                              << theThresholdInE_FPix
                              << "threshold in electron BPix = "
                              << theThresholdInE_BPix
                              <<" " << theElectronPerADC << " " << theAdcFullScale
                              << " The delta cut-off is set to " << tMax
                              << " pix-inefficiency "<<thePixelLuminosity;

}
SiPixelDigitizerAlgorithm::~SiPixelDigitizerAlgorithm ( )

Member Function Documentation

void SiPixelDigitizerAlgorithm::add_noise ( ) [private]

Definition at line 1162 of file SiPixelDigitizerAlgorithm.cc.

References _signal, addChargeVCALSmearing, addNoisyPixels, gaussDistribution_, gaussDistributionVCALNoise_, GaussianTailNoiseGenerator::generate(), i, LogDebug, numColumns, numRows, PixelDigi::pixelToChannel(), theNoiseInElectrons, theNoiser, thePixelThreshold, theSmearedChargeRMS, theThresholdInE_BPix, and theThresholdInE_FPix.

Referenced by digitize().

                                          {

#ifdef TP_DEBUG
  LogDebug ("Pixel Digitizer") << " enter add_noise " << theNoiseInElectrons;
#endif

  // First add noise to hit pixels

  for ( signal_map_iterator i = _signal.begin(); i != _signal.end(); i++) {

         if(addChargeVCALSmearing)
      {
        if((*i).second < 3000)
          {
            theSmearedChargeRMS = 543.6 - (*i).second * 0.093;
          } else if((*i).second < 6000){
            theSmearedChargeRMS = 307.6 - (*i).second * 0.01;
          } else{
            theSmearedChargeRMS = -432.4 +(*i).second * 0.123;
        }

        // Noise from Vcal smearing:
        float noise_ChargeVCALSmearing = theSmearedChargeRMS * gaussDistributionVCALNoise_->fire() ;
        // Noise from full readout:
        float noise  = gaussDistribution_->fire() ;

                if(((*i).second + Amplitude(noise+noise_ChargeVCALSmearing,0,-1.)) < 0. ) {
                  (*i).second.set(0);}
                else{
        (*i).second +=Amplitude(noise+noise_ChargeVCALSmearing,0,-1.);
                }

      } // End if addChargeVCalSmearing
         else
     {
        // Noise: ONLY full READOUT Noise.
        // Use here the FULL readout noise, including TBM,ALT,AOH,OPT-REC.

        float noise  = gaussDistribution_->fire() ;
                if(((*i).second + Amplitude(noise,0,-1.)) < 0. ) {
                  (*i).second.set(0);}
                else{
        (*i).second +=Amplitude(noise,0,-1.);
                }
     } // end if only Noise from full readout

  }

  if(!addNoisyPixels)  // Option to skip noise in non-hit pixels
    return;

  // Add noise on non-hit pixels
  // Use here the pixel noise
  int numberOfPixels = (numRows * numColumns);
  map<int,float, less<int> > otherPixels;
  map<int,float, less<int> >::iterator mapI;

  theNoiser->generate(numberOfPixels,
                      thePixelThreshold, //thr. in un. of nois
                      theNoiseInElectrons, // noise in elec.
                      otherPixels );

#ifdef TP_DEBUG
  LogDebug ("Pixel Digitizer")
    <<  " Add noisy pixels " << numRows << " "
    << numColumns << " " << theNoiseInElectrons << " "
    << theThresholdInE_FPix << theThresholdInE_BPix <<" "<< numberOfPixels<<" "
    << otherPixels.size() ;
#endif

  // Add noisy pixels
  for (mapI = otherPixels.begin(); mapI!= otherPixels.end(); mapI++) {
    int iy = ((*mapI).first) / numRows;
    int ix = ((*mapI).first) - (iy*numRows);

    // Keep for a while for testing.
    if( iy < 0 || iy > (numColumns-1) )
      LogWarning ("Pixel Geometry") << " error in iy " << iy ;
    if( ix < 0 || ix > (numRows-1) )
      LogWarning ("Pixel Geometry")  << " error in ix " << ix ;

    int chan = PixelDigi::pixelToChannel(ix, iy);

#ifdef TP_DEBUG
    LogDebug ("Pixel Digitizer")
      <<" Storing noise = " << (*mapI).first << " " << (*mapI).second
      << " " << ix << " " << iy << " " << chan ;
#endif

    if(_signal[chan] == 0){
      //      float noise = float( (*mapI).second );
      int noise=int( (*mapI).second );
      _signal[chan] = Amplitude (noise, 0,-1.);
    }
  }

}
vector< PixelDigi > SiPixelDigitizerAlgorithm::digitize ( PixelGeomDetUnit det) [private]

Definition at line 494 of file SiPixelDigitizerAlgorithm.cc.

References _collection_points, _PixelHits, _signal, add_noise(), addNoise, addNoisyPixels, addThresholdSmearing, BoundSurface::bounds(), detID, doMissCalibrate, drift(), induce_signal(), internal_coll, LogDebug, make_digis(), module_killing_conf(), module_killing_DB(), moduleThickness, PixelTopology::ncolumns(), PixelTopology::nrows(), numColumns, numRows, pIndexConverter, pixel_inefficiency(), pixel_inefficiency_db(), PixelSubdetector::PixelBarrel, pixelInefficiency, primary_ionization(), smearedThreshold_BPix_, smearedThreshold_FPix_, GeomDet::specificSurface(), PixelGeomDetUnit::specificTopology(), DetId::subdetId(), theNoiseInElectrons, thePixelThreshold, thePixelThresholdInE, theThresholdInE_BPix, theThresholdInE_FPix, theTofLowerCut, theTofUpperCut, Bounds::thickness(), topol, use_deadmodule_DB_, use_ineff_from_db_, and use_module_killing_.

Referenced by run().

                                                                          {

  if( _PixelHits.size() > 0 || addNoisyPixels) {

    topol=&det->specificTopology(); // cache topology
    numColumns = topol->ncolumns();  // det module number of cols&rows
    numRows = topol->nrows();

    // full detector thickness
    moduleThickness = det->specificSurface().bounds().thickness();

    // The index converter is only needed when inefficiencies or misscalibration
    // are simulated.
    if((pixelInefficiency>0) || doMissCalibrate ) {  // Init pixel indices
      pIndexConverter = new PixelIndices(numColumns,numRows);
    }

    // Noise already defined in electrons
    //thePixelThresholdInE = thePixelThreshold * theNoiseInElectrons ;
    // Find the threshold in noise units, needed for the noiser.

  unsigned int Sub_detid=DetId(detID).subdetId();

  if(theNoiseInElectrons>0.){
    if(Sub_detid == PixelSubdetector::PixelBarrel){ // Barrel modules
      if(addThresholdSmearing) {
        thePixelThresholdInE = smearedThreshold_BPix_->fire(); // gaussian smearing
      } else {
        thePixelThresholdInE = theThresholdInE_BPix; // no smearing
      }

      thePixelThreshold = thePixelThresholdInE/theNoiseInElectrons;

    } else { // Forward disks modules
      if(addThresholdSmearing) {
        thePixelThresholdInE = smearedThreshold_FPix_->fire(); // gaussian smearing
      } else {
        thePixelThresholdInE = theThresholdInE_FPix; // no smearing
      }

      thePixelThreshold = thePixelThresholdInE/theNoiseInElectrons;

    }
  } else {
    thePixelThreshold = 0.;
  }


#ifdef TP_DEBUG
    LogDebug ("PixelDigitizer")
      << " PixelDigitizer "
      << numColumns << " " << numRows << " " << moduleThickness;
#endif

    // produce SignalPoint's for all SimHit's in detector
    // Loop over hits

    vector<PSimHit>::const_iterator ssbegin;
    for (ssbegin= _PixelHits.begin();ssbegin !=_PixelHits.end(); ++ssbegin) {

#ifdef TP_DEBUG
      LogDebug ("Pixel Digitizer")
        << (*ssbegin).particleType() << " " << (*ssbegin).pabs() << " "
        << (*ssbegin).energyLoss() << " " << (*ssbegin).tof() << " "
        << (*ssbegin).trackId() << " " << (*ssbegin).processType() << " "
        << (*ssbegin).detUnitId()
        << (*ssbegin).entryPoint() << " " << (*ssbegin).exitPoint() ;
#endif

      _collection_points.clear();  // Clear the container
      // fill _collection_points for this SimHit, indpendent of topology
      // Check the TOF cut
      //if(std::abs( (*ssbegin).tof() )<theTofCut){ // old cut
      if( ((*ssbegin).tof() >= theTofLowerCut) && ((*ssbegin).tof() <= theTofUpperCut) ) {
        primary_ionization(*ssbegin); // fills _ionization_points
        drift(*ssbegin);  // transforms _ionization_points to _collection_points
        // compute induced signal on readout elements and add to _signal
        induce_signal(*ssbegin); // *ihit needed only for SimHit<-->Digi link
      } //  end if
    } // end for

    if(addNoise) add_noise();  // generate noise
    // Do only if needed

    if((pixelInefficiency>0) && (_signal.size()>0))
      pixel_inefficiency(); // Kill some pixels

    if(use_ineff_from_db_ && (_signal.size()>0))
      pixel_inefficiency_db();

    delete pIndexConverter;

    if(use_module_killing_ && use_deadmodule_DB_) // remove dead modules using DB
      module_killing_DB();

    if(use_module_killing_ && !use_deadmodule_DB_) // remove dead modules using the list in cfg file
      module_killing_conf();

  }

  make_digis();

  return internal_coll;
}
void SiPixelDigitizerAlgorithm::drift ( const PSimHit hit) [private]

Definition at line 729 of file SiPixelDigitizerAlgorithm.cc.

References _collection_points, _ionization_points, alpha2Order, PSimHit::detUnitId(), Dist300, DriftDirection(), i, LogDebug, lorentzAngle, moduleThickness, FitTarget::Sigma, Sigma0, SiPixelLorentzAngle_, mathSSE::sqrt(), PSimHit::tof(), use_LorentzAngle_DB_, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by digitize().

                                                       {


#ifdef TP_DEBUG
  LogDebug ("Pixel Digitizer") << " enter drift " ;
#endif

  _collection_points.resize( _ionization_points.size()); // set size

  if(use_LorentzAngle_DB_){
    //float LorentzAng = SiPixelLorentzAngle_->getLorentzAngle(hit.detUnitId());
    lorentzAngle = SiPixelLorentzAngle_->getLorentzAngle(hit.detUnitId());
  } 

  //LocalVector driftDir=DriftDirection(LorentzAng);  // get the charge drift direction
  LocalVector driftDir=DriftDirection();  // get the charge drift direction
  if(driftDir.z() ==0.) {
    LogWarning("Magnetic field") << " pxlx: drift in z is zero ";
    return;
  }
  
  // tangent of Lorentz angle
  //float TanLorenzAngleX = driftDir.x()/driftDir.z();
  //float TanLorenzAngleY = 0.; // force to 0, driftDir.y()/driftDir.z();
  
  float TanLorenzAngleX, TanLorenzAngleY,dir_z, CosLorenzAngleX,
    CosLorenzAngleY;
  if( alpha2Order) {

    TanLorenzAngleX = driftDir.x(); // tangen of Lorentz angle
    TanLorenzAngleY = driftDir.y();
    dir_z = driftDir.z(); // The z drift direction
    CosLorenzAngleX = 1./sqrt(1.+TanLorenzAngleX*TanLorenzAngleX); //cosine
    CosLorenzAngleY = 1./sqrt(1.+TanLorenzAngleY*TanLorenzAngleY); //cosine;

  } else{

    TanLorenzAngleX = driftDir.x();
    TanLorenzAngleY = 0.; // force to 0, driftDir.y()/driftDir.z();
    dir_z = driftDir.z(); // The z drift direction
    CosLorenzAngleX = 1./sqrt(1.+TanLorenzAngleX*TanLorenzAngleX); //cosine to estimate the path length
    CosLorenzAngleY = 1.;
  }


#ifdef TP_DEBUG
  LogDebug ("Pixel Digitizer")
    << " Lorentz Tan " << TanLorenzAngleX << " " << TanLorenzAngleY <<" "
    << CosLorenzAngleX << " " << CosLorenzAngleY << " "
    << moduleThickness*TanLorenzAngleX << " " << driftDir;
#endif

  float Sigma_x = 1.;  // Charge spread
  float Sigma_y = 1.;
  float DriftDistance; // Distance between charge generation and collection
  float DriftLength;   // Actual Drift Lentgh
  float Sigma;


  for (unsigned int i = 0; i != _ionization_points.size(); i++) {

    float SegX, SegY, SegZ; // position
    SegX = _ionization_points[i].x();
    SegY = _ionization_points[i].y();
    SegZ = _ionization_points[i].z();

    // Distance from the collection plane
    //DriftDistance = (moduleThickness/2. + SegZ); // Drift to -z
    // Include explixitely the E drift direction (for CMS dir_z=-1)
    DriftDistance = moduleThickness/2. - (dir_z * SegZ); // Drift to -z

    //if( DriftDistance <= 0.)
    //cout<<" <=0 "<<DriftDistance<<" "<<i<<" "<<SegZ<<" "<<dir_z<<" "
    //  <<SegX<<" "<<SegY<<" "<<(moduleThickness/2)<<" "
    //  <<_ionization_points[i].energy()<<" "
    //  <<hit.particleType()<<" "<<hit.pabs()<<" "<<hit.energyLoss()<<" "
    //  <<hit.entryPoint()<<" "<<hit.exitPoint()
    //  <<endl;

    if( DriftDistance < 0.) {
      DriftDistance = 0.;
    } else if( DriftDistance > moduleThickness )
      DriftDistance = moduleThickness;

    // Assume full depletion now, partial depletion will come later.
    float XDriftDueToMagField = DriftDistance * TanLorenzAngleX;
    float YDriftDueToMagField = DriftDistance * TanLorenzAngleY;

    // Shift cloud center
    float CloudCenterX = SegX + XDriftDueToMagField;
    float CloudCenterY = SegY + YDriftDueToMagField;

    // Calculate how long is the charge drift path
    DriftLength = sqrt( DriftDistance*DriftDistance +
                        XDriftDueToMagField*XDriftDueToMagField +
                        YDriftDueToMagField*YDriftDueToMagField );

    // What is the charge diffusion after this path
    Sigma = sqrt(DriftLength/Dist300) * Sigma0;

    // Project the diffusion sigma on the collection plane
    Sigma_x = Sigma / CosLorenzAngleX ;
    Sigma_y = Sigma / CosLorenzAngleY ;

    SignalPoint sp( CloudCenterX, CloudCenterY,
     Sigma_x, Sigma_y, hit.tof(), _ionization_points[i].energy() );

    // Load the Charge distribution parameters
    _collection_points[i] = (sp);

  } // loop over ionization points, i.

} // end drift
LocalVector SiPixelDigitizerAlgorithm::DriftDirection ( ) [private]

Definition at line 1464 of file SiPixelDigitizerAlgorithm.cc.

References _bfield, _detp, alpha2Order, detID, LogDebug, lorentzAngle, PixelSubdetector::PixelBarrel, GloballyPositioned< T >::position(), GloballyPositioned< T >::rotation(), pileupReCalc_HLTpaths::scale, DetId::subdetId(), GeomDet::surface(), tanLorentzAnglePerTesla_BPix, tanLorentzAnglePerTesla_FPix, and use_LorentzAngle_DB_.

Referenced by drift().

                                                     {
  Frame detFrame(_detp->surface().position(),_detp->surface().rotation());
  LocalVector Bfield=detFrame.toLocal(_bfield);
  
  float alpha2_FPix;
  float alpha2_BPix;
  float alpha2;
  
  //float dir_x = -tanLorentzAnglePerTesla * Bfield.y();
  //float dir_y = +tanLorentzAnglePerTesla * Bfield.x();
  //float dir_z = -1.; // E field always in z direction, so electrons go to -z
  // The dir_z has to be +/- 1. !
  // LocalVector theDriftDirection = LocalVector(dir_x,dir_y,dir_z);

  float dir_x = 0.0;
  float dir_y = 0.0;
  float dir_z = 0.0;
  float scale = 0.0;

  unsigned int Sub_detid=DetId(detID).subdetId();

  // Read Lorentz angle from cfg file:**************************************************************

  if(!use_LorentzAngle_DB_){
    
    if( alpha2Order) {
      alpha2_FPix = tanLorentzAnglePerTesla_FPix*tanLorentzAnglePerTesla_FPix;
      alpha2_BPix = tanLorentzAnglePerTesla_BPix*tanLorentzAnglePerTesla_BPix;
    }else {
      alpha2_FPix = 0.0;
      alpha2_BPix = 0.0;
    }
    
    if(Sub_detid == PixelSubdetector::PixelBarrel){// barrel layers
      dir_x = -( tanLorentzAnglePerTesla_BPix * Bfield.y() + alpha2_BPix* Bfield.z()* Bfield.x() );
      dir_y = +( tanLorentzAnglePerTesla_BPix * Bfield.x() - alpha2_BPix* Bfield.z()* Bfield.y() );
      dir_z = -(1 + alpha2_BPix* Bfield.z()*Bfield.z() );
      scale = (1 + alpha2_BPix* Bfield.z()*Bfield.z() );

    } else {// forward disks
      dir_x = -( tanLorentzAnglePerTesla_FPix * Bfield.y() + alpha2_FPix* Bfield.z()* Bfield.x() );
      dir_y = +( tanLorentzAnglePerTesla_FPix * Bfield.x() - alpha2_FPix* Bfield.z()* Bfield.y() );
      dir_z = -(1 + alpha2_FPix* Bfield.z()*Bfield.z() );
      scale = (1 + alpha2_FPix* Bfield.z()*Bfield.z() );
    }
    } // end: Read LA from cfg file.

  //Read Lorentz angle from DB:********************************************************************
  if(use_LorentzAngle_DB_){
    alpha2 = lorentzAngle * lorentzAngle;
    //std::cout << "detID is: "<< it->first <<"The LA per tesla is: "<< it->second << std::endl;
    dir_x = -( lorentzAngle * Bfield.y() + alpha2 * Bfield.z()* Bfield.x() );
    dir_y = +( lorentzAngle * Bfield.x() - alpha2 * Bfield.z()* Bfield.y() );
    dir_z = -(1 + alpha2 * Bfield.z()*Bfield.z() );
    scale = (1 + alpha2 * Bfield.z()*Bfield.z() );
  }// end: Read LA from DataBase.
  
  LocalVector theDriftDirection = LocalVector(dir_x/scale, dir_y/scale, dir_z/scale );
  
#ifdef TP_DEBUG
  LogDebug ("Pixel Digitizer") << " The drift direction in local coordinate is "
                               << theDriftDirection ;
#endif
  
  return theDriftDirection;
}
void SiPixelDigitizerAlgorithm::fillDeadModules ( const edm::EventSetup es)

Definition at line 110 of file SiPixelDigitizerAlgorithm.cc.

References edm::EventSetup::get().

                                                                      {
  if(!use_deadmodule_DB_){
    DeadModules = conf_.getParameter<Parameters>("DeadModules"); // get dead module from cfg file
  }
  else{  // Get dead module from DB record
    // ESHandle was defined in the header file   edm::ESHandle<SiPixelQuality> SiPixelBadModule_;
    es.get<SiPixelQualityRcd>().get(SiPixelBadModule_);
  }
}
void SiPixelDigitizerAlgorithm::fillLorentzAngle ( const edm::EventSetup es)

Definition at line 120 of file SiPixelDigitizerAlgorithm.cc.

References edm::EventSetup::get().

                                                                       {
  if(!use_LorentzAngle_DB_){
    // Get the Lorentz angle from the cfg file:
    tanLorentzAnglePerTesla_FPix=conf_.getParameter<double>("TanLorentzAnglePerTesla_FPix");
    tanLorentzAnglePerTesla_BPix=conf_.getParameter<double>("TanLorentzAnglePerTesla_BPix");
  }
  else {
    // Get Lorentz angle from DB record
    // ESHandle was defined in the header file edm::ESHandle<SiPixelLorentzAngle> SiPixelLorentzAngle_;
    es.get<SiPixelLorentzAngleSimRcd>().get(SiPixelLorentzAngle_);
  }
}
void SiPixelDigitizerAlgorithm::fillMapandGeom ( const edm::EventSetup es)

Definition at line 134 of file SiPixelDigitizerAlgorithm.cc.

References edm::EventSetup::get().

void SiPixelDigitizerAlgorithm::fluctuateEloss ( int  particleId,
float  momentum,
float  eloss,
float  length,
int  NumberOfSegments,
float  elossVector[] 
) [private]

Definition at line 674 of file SiPixelDigitizerAlgorithm.cc.

References abs, fluctuate, i, SiG4UniversalFluctuation::SampleFluctuations(), and tMax.

Referenced by primary_ionization().

                                                                            {

  // Get dedx for this track
  //float dedx;
  //if( length > 0.) dedx = eloss/length;
  //else dedx = eloss;

  double particleMass = 139.6; // Mass in MeV, Assume pion
  pid = abs(pid);
  if(pid!=211) {       // Mass in MeV
    if(pid==11)        particleMass = 0.511;
    else if(pid==13)   particleMass = 105.7;
    else if(pid==321)  particleMass = 493.7;
    else if(pid==2212) particleMass = 938.3;
  }
  // What is the track segment length.
  float segmentLength = length/NumberOfSegs;

  // Generate charge fluctuations.
  float de=0.;
  float sum=0.;
  double segmentEloss = (1000.*eloss)/NumberOfSegs; //eloss in MeV
  for (int i=0;i<NumberOfSegs;i++) {
    //       material,*,   momentum,energy,*, *,  mass
    //myglandz_(14.,segmentLength,2.,2.,dedx,de,0.14);
    // The G4 routine needs momentum in MeV, mass in Mev, delta-cut in MeV,
    // track segment length in mm, segment eloss in MeV
    // Returns fluctuated eloss in MeV
    double deltaCutoff = tMax; // the cutoff is sometimes redefined inside, so fix it.
    de = fluctuate->SampleFluctuations(double(particleMomentum*1000.),
                                      particleMass, deltaCutoff,
                                      double(segmentLength*10.),
                                      segmentEloss )/1000.; //convert to GeV

    elossVector[i]=de;
    sum +=de;
  }

  if(sum>0.) {  // If fluctuations give eloss>0.
    // Rescale to the same total eloss
    float ratio = eloss/sum;

    for (int ii=0;ii<NumberOfSegs;ii++) elossVector[ii]= ratio*elossVector[ii];
  } else {  // If fluctuations gives 0 eloss
    float averageEloss = eloss/NumberOfSegs;
    for (int ii=0;ii<NumberOfSegs;ii++) elossVector[ii]= averageEloss;
  }
  return;
}
void SiPixelDigitizerAlgorithm::induce_signal ( const PSimHit hit) [private]

Definition at line 845 of file SiPixelDigitizerAlgorithm.cc.

References _collection_points, _signal, Topology::channel(), PixelDigi::channelToPixel(), ClusterWidth, i, Topology::localPosition(), LogDebug, Topology::measurementPosition(), numColumns, numRows, PixelTopology::pitch(), PixelDigi::pixelToChannel(), query::result, ntuplemaker::status, topol, PV3DBase< T, PVType, FrameType >::x(), PV2DBase< T, PVType, FrameType >::x(), x, PV3DBase< T, PVType, FrameType >::y(), PV2DBase< T, PVType, FrameType >::y(), and detailsBasic3DVector::y.

Referenced by digitize().

                                                                 {

  // X  - Rows, Left-Right, 160, (1.6cm)   for barrel
  // Y  - Columns, Down-Up, 416, (6.4cm)

#ifdef TP_DEBUG
    LogDebug ("Pixel Digitizer")
      << " enter induce_signal, "
      << topol->pitch().first << " " << topol->pitch().second; //OK
#endif

   // local map to store pixels hit by 1 Hit.
   typedef map< int, float, less<int> > hit_map_type;
   hit_map_type hit_signal;

   // map to store pixel integrals in the x and in the y directions
   map<int, float, less<int> > x,y;

   // Assign signals to readout channels and store sorted by channel number

   // Iterate over collection points on the collection plane
   for ( vector<SignalPoint>::const_iterator i=_collection_points.begin();
         i != _collection_points.end(); i++) {

     float CloudCenterX = i->position().x(); // Charge position in x
     float CloudCenterY = i->position().y(); //                 in y
     float SigmaX = i->sigma_x();            // Charge spread in x
     float SigmaY = i->sigma_y();            //               in y
     float Charge = i->amplitude();          // Charge amplitude


     //if(SigmaX==0 || SigmaY==0) {
     //cout<<SigmaX<<" "<<SigmaY
     //   << " cloud " << i->position().x() << " " << i->position().y() << " "
     //   << i->sigma_x() << " " << i->sigma_y() << " " << i->amplitude()<<endl;
     //}

#ifdef TP_DEBUG
       LogDebug ("Pixel Digitizer")
         << " cloud " << i->position().x() << " " << i->position().y() << " "
         << i->sigma_x() << " " << i->sigma_y() << " " << i->amplitude();
#endif

     // Find the maximum cloud spread in 2D plane , assume 3*sigma
     float CloudRight = CloudCenterX + ClusterWidth*SigmaX;
     float CloudLeft  = CloudCenterX - ClusterWidth*SigmaX;
     float CloudUp    = CloudCenterY + ClusterWidth*SigmaY;
     float CloudDown  = CloudCenterY - ClusterWidth*SigmaY;

     // Define 2D cloud limit points
     LocalPoint PointRightUp  = LocalPoint(CloudRight,CloudUp);
     LocalPoint PointLeftDown = LocalPoint(CloudLeft,CloudDown);

     // This points can be located outside the sensor area.
     // The conversion to measurement point does not check for that
     // so the returned pixel index might be wrong (outside range).
     // We rely on the limits check below to fix this.
     // But remember whatever we do here THE CHARGE OUTSIDE THE ACTIVE
     // PIXEL ARE IS LOST, it should not be collected.

     // Convert the 2D points to pixel indices
     MeasurementPoint mp = topol->measurementPosition(PointRightUp ); //OK

     int IPixRightUpX = int( floor( mp.x()));
     int IPixRightUpY = int( floor( mp.y()));

#ifdef TP_DEBUG
     LogDebug ("Pixel Digitizer") << " right-up " << PointRightUp << " "
                                  << mp.x() << " " << mp.y() << " "
                                  << IPixRightUpX << " " << IPixRightUpY ;
#endif

     mp = topol->measurementPosition(PointLeftDown ); //OK

     int IPixLeftDownX = int( floor( mp.x()));
     int IPixLeftDownY = int( floor( mp.y()));

#ifdef TP_DEBUG
     LogDebug ("Pixel Digitizer") << " left-down " << PointLeftDown << " "
                                  << mp.x() << " " << mp.y() << " "
                                  << IPixLeftDownX << " " << IPixLeftDownY ;
#endif

     // Check detector limits to correct for pixels outside range.
     IPixRightUpX = numRows>IPixRightUpX ? IPixRightUpX : numRows-1 ;
     IPixRightUpY = numColumns>IPixRightUpY ? IPixRightUpY : numColumns-1 ;
     IPixLeftDownX = 0<IPixLeftDownX ? IPixLeftDownX : 0 ;
     IPixLeftDownY = 0<IPixLeftDownY ? IPixLeftDownY : 0 ;

     x.clear(); // clear temporary integration array
     y.clear();

     // First integrate cahrge strips in x
     int ix; // TT for compatibility
     for (ix=IPixLeftDownX; ix<=IPixRightUpX; ix++) {  // loop over x index
       float xUB, xLB, UpperBound, LowerBound;

       // Why is set to 0 if ix=0, does it meen that we accept charge
       // outside the sensor? CHeck How it was done in ORCA?
       //if(ix == 0) LowerBound = 0.;
       if(ix == 0 || SigmaX==0. )  // skip for surface segemnts
         LowerBound = 0.;
       else {
         mp = MeasurementPoint( float(ix), 0.0);
         xLB = topol->localPosition(mp).x();
         gsl_sf_result result;
         int status = gsl_sf_erf_Q_e( (xLB-CloudCenterX)/SigmaX, &result);
         if(status != 0)
           LogWarning ("Integration")<<"could not compute gaussian probability";
         LowerBound = 1-result.val;
       }

       if(ix == numRows-1 || SigmaX==0. )
         UpperBound = 1.;
       else {
         mp = MeasurementPoint( float(ix+1), 0.0);
         xUB = topol->localPosition(mp).x();
         gsl_sf_result result;
         int status = gsl_sf_erf_Q_e( (xUB-CloudCenterX)/SigmaX, &result);
         if(status != 0)
           LogWarning ("Integration")<<"could not compute gaussian probability";
         UpperBound = 1. - result.val;
       }

       float   TotalIntegrationRange = UpperBound - LowerBound; // get strip
       x[ix] = TotalIntegrationRange; // save strip integral
       //if(SigmaX==0 || SigmaY==0)
       //cout<<TotalIntegrationRange<<" "<<ix<<endl;

     }

    // Now integarte strips in y
    int iy; // TT for compatibility
    for (iy=IPixLeftDownY; iy<=IPixRightUpY; iy++) { //loope over y ind
      float yUB, yLB, UpperBound, LowerBound;

      if(iy == 0 || SigmaY==0.)
        LowerBound = 0.;
      else {
        mp = MeasurementPoint( 0.0, float(iy) );
        yLB = topol->localPosition(mp).y();
        gsl_sf_result result;
        int status = gsl_sf_erf_Q_e( (yLB-CloudCenterY)/SigmaY, &result);
        if(status != 0)
          LogWarning ("Integration")<<"could not compute gaussian probability";
        LowerBound = 1. - result.val;
      }

      if(iy == numColumns-1 || SigmaY==0. )
        UpperBound = 1.;
      else {
        mp = MeasurementPoint( 0.0, float(iy+1) );
        yUB = topol->localPosition(mp).y();
        gsl_sf_result result;
        int status = gsl_sf_erf_Q_e( (yUB-CloudCenterY)/SigmaY, &result);
        if(status != 0)
          LogWarning ("Integration")<<"could not compute gaussian probability";
        UpperBound = 1. - result.val;
      }

      float   TotalIntegrationRange = UpperBound - LowerBound;
      y[iy] = TotalIntegrationRange; // save strip integral
      //if(SigmaX==0 || SigmaY==0)
      //cout<<TotalIntegrationRange<<" "<<iy<<endl;
    }

    // Get the 2D charge integrals by folding x and y strips
    int chan;
    for (ix=IPixLeftDownX; ix<=IPixRightUpX; ix++) {  // loop over x index
      for (iy=IPixLeftDownY; iy<=IPixRightUpY; iy++) { //loope over y ind

        float ChargeFraction = Charge*x[ix]*y[iy];

        if( ChargeFraction > 0. ) {
          chan = PixelDigi::pixelToChannel( ix, iy);  // Get index
          // Load the amplitude
          hit_signal[chan] += ChargeFraction;
        } // endif


        mp = MeasurementPoint( float(ix), float(iy) );
        LocalPoint lp = topol->localPosition(mp);
        chan = topol->channel(lp);

#ifdef TP_DEBUG
        LogDebug ("Pixel Digitizer")
          << " pixel " << ix << " " << iy << " - "<<" "
          << chan << " " << ChargeFraction<<" "
          << mp.x() << " " << mp.y() <<" "
          << lp.x() << " " << lp.y() << " "  // givex edge position
          << chan; // edge belongs to previous ?
#endif

      } // endfor iy
    } //endfor ix


    // Test conversions (THIS IS FOR TESTING ONLY) comment-out.
    //     mp = topol->measurementPosition( i->position() ); //OK
    //     LocalPoint lp = topol->localPosition(mp);     //OK
    //     pair<float,float> p = topol->pixel( i->position() );  //OK
    //     chan = PixelDigi::pixelToChannel( int(p.first), int(p.second));
    //     pair<int,int> ip = PixelDigi::channelToPixel(chan);
    //     MeasurementPoint mp1 = MeasurementPoint( float(ip.first),
    //                                       float(ip.second) );
    //     LogDebug ("Pixel Digitizer") << " Test "<< mp.x() << " " << mp.y()
    //                           << " "<< lp.x() << " " << lp.y() << " "<<" "
    //                           <<p.first <<" "<<p.second<<" "<<chan<< " "
    //                           <<" " << ip.first << " " << ip.second << " "
    //                           << mp1.x() << " " << mp1.y() << " " //OK
    //                           << topol->localPosition(mp1).x() << " "  //OK
    //                           << topol->localPosition(mp1).y() << " "
    //                           << topol->channel( i->position() ); //OK


  } // loop over charge distributions

  // Fill the global map with all hit pixels from this event

  for ( hit_map_type::const_iterator im = hit_signal.begin();
        im != hit_signal.end(); im++) {
    _signal[(*im).first] += Amplitude( (*im).second, &hit, (*im).second);

    int chan =  (*im).first;
    pair<int,int> ip = PixelDigi::channelToPixel(chan);

#ifdef TP_DEBUG
    LogDebug ("Pixel Digitizer")
      << " pixel " << ip.first << " " << ip.second << " "
      << _signal[(*im).first];
#endif
  }

} // end induce_signal
void SiPixelDigitizerAlgorithm::init ( const edm::EventSetup es)

Definition at line 97 of file SiPixelDigitizerAlgorithm.cc.

Referenced by cms::SiPixelDigitizer::produce().

                                                           {
  if(use_ineff_from_db_){// load gain calibration service fromdb...
    theSiPixelGainCalibrationService_= new SiPixelGainCalibrationOfflineSimService(conf_);
    theSiPixelGainCalibrationService_->setESObjects( es );
  }

  fillDeadModules(es); // gets the dead module from config file or DB.
  fillLorentzAngle(es); // gets the Lorentz angle from the config file or DB.
  fillMapandGeom(es);  //gets the map and geometry from the DB (to kill ROCs)
}
void SiPixelDigitizerAlgorithm::make_digis ( ) [private]

Definition at line 1083 of file SiPixelDigitizerAlgorithm.cc.

References _signal, ecalMGPA::adc(), PixelDigi::channelToPixel(), doMissCalibrate, i, internal_coll, link_coll, LogDebug, min, missCalibrate(), simi, theAdcFullScale, theElectronPerADC, thePixelThresholdInE, theThresholdInE_BPix, and theThresholdInE_FPix.

Referenced by digitize().

                                           {
  internal_coll.reserve(50); internal_coll.clear();

#ifdef TP_DEBUG
  LogDebug ("Pixel Digitizer") << " make digis "<<" "
                               << " pixel threshold FPix" << theThresholdInE_FPix << " "
                               << " pixel threshold BPix" << theThresholdInE_BPix << " "
                               << " List pixels passing threshold ";
#endif

  // Loop over hit pixels

  for ( signal_map_iterator i = _signal.begin(); i != _signal.end(); i++) {

        float signalInElectrons = (*i).second ;   // signal in electrons

    // Do the miss calibration for calibration studies only.
    //if(doMissCalibrate) signalInElectrons = missCalibrate(signalInElectrons)

    // Do only for pixels above threshold

       if( signalInElectrons >= thePixelThresholdInE) { // check threshold

      int chan =  (*i).first;  // channel number
      pair<int,int> ip = PixelDigi::channelToPixel(chan);
      int adc=0;  // ADC count as integer

      // Do the miss calibration for calibration studies only.
      if(doMissCalibrate) {
        int row = ip.first;  // X in row
        int col = ip.second; // Y is in col
        adc = int(missCalibrate(col,row,signalInElectrons)); //full misscalib.
      } else { // Just do a simple electron->adc conversion
        adc = int( signalInElectrons / theElectronPerADC ); // calibrate gain
      }
      adc = min(adc, theAdcFullScale); // Check maximum value

#ifdef TP_DEBUG
      LogDebug ("Pixel Digitizer")
        << (*i).first << " " << (*i).second << " " << signalInElectrons
        << " " << adc << ip.first << " " << ip.second ;
#endif

      // Load digis
      internal_coll.push_back( PixelDigi( ip.first, ip.second, adc));

      //digilink
      if((*i).second.hits().size()>0){
        simi.clear();
        unsigned int il=0;
        for( vector<const PSimHit*>::const_iterator ihit = (*i).second.hits().begin();
             ihit != (*i).second.hits().end(); ihit++) {
          simi[(**ihit).trackId()].push_back((*i).second.individualampl()[il]);
          il++;
        }

        //sum the contribution of the same trackid
        for( simlink_map::iterator simiiter=simi.begin();
             simiiter!=simi.end();
             simiiter++){

          float sum_samechannel=0;
          for (unsigned int iii=0;iii<(*simiiter).second.size();iii++){
            sum_samechannel+=(*simiiter).second[iii];
          }
          float fraction=sum_samechannel/(*i).second;
          if(fraction>1.) fraction=1.;
          link_coll.push_back(PixelDigiSimLink((*i).first,(*simiiter).first,((*i).second.hits().front())->eventId(),fraction));
        }

      }
    }

  }
}
std::vector<PixelDigiSimLink> SiPixelDigitizerAlgorithm::make_link ( ) [inline]

Definition at line 70 of file SiPixelDigitizerAlgorithm.h.

References link_coll.

Referenced by cms::SiPixelDigitizer::produce().

                                          {
    return link_coll; }
float SiPixelDigitizerAlgorithm::missCalibrate ( int  col,
int  row,
float  amp 
) const [private]

Definition at line 1381 of file SiPixelDigitizerAlgorithm.cc.

References BPix_p0, BPix_p1, BPix_p2, BPix_p3, detID, electronsPerVCAL, electronsPerVCAL_Offset, FPix_p0, FPix_p1, FPix_p2, FPix_p3, p1, p2, p3, PixelSubdetector::PixelBarrel, and DetId::subdetId().

Referenced by make_digis().

                                                                      {

  // Central values
  //const float p0=0.00352, p1=0.868, p2=112., p3=113.; // pix(0,0,0)
  //  const float p0=0.00382, p1=0.886, p2=112.7, p3=113.0; // average roc=0
  //const float p0=0.00492, p1=1.998, p2=90.6, p3=134.1; // average roc=6
  // Smeared (rms)
  //const float s0=0.00020, s1=0.051, s2=5.4, s3=4.4; // average roc=0
  //const float s0=0.00015, s1=0.043, s2=3.2, s3=3.1; // col average roc=0

  // Make 2 sets of parameters for Fpix and BPIx:

  float p0=0.0;
  float p1=0.0;
  float p2=0.0;
  float p3=0.0;

  unsigned int Sub_detid=DetId(detID).subdetId();

    if(Sub_detid == PixelSubdetector::PixelBarrel){// barrel layers
      p0 = BPix_p0;
      p1 = BPix_p1;
      p2 = BPix_p2;
      p3 = BPix_p3;
    } else {// forward disks
      p0 = FPix_p0;
      p1 = FPix_p1;
      p2 = FPix_p2;
      p3 = FPix_p3;
    }

  //  const float electronsPerVCAL = 65.5; // our present VCAL calibration (feb 2009)
  //  const float electronsPerVCAL_Offset = -414.0; // our present VCAL calibration (feb 2009)
  float newAmp = 0.; //Modified signal

  // Convert electrons to VCAL units
  float signal = (signalInElectrons-electronsPerVCAL_Offset)/electronsPerVCAL;

  // Simulate the analog response with fixed parametrization
  newAmp = p3 + p2 * tanh(p0*signal - p1);


  // Use the pixel-by-pixel calibrations
  //transform to ROC index coordinates
  //int chipIndex=0, colROC=0, rowROC=0;
  //pIndexConverter->transformToROC(col,row,chipIndex,colROC,rowROC);

  // Use calibration from a file
  //int chanROC = PixelIndices::pixelToChannelROC(rowROC,colROC); // use ROC coordinates
  //float pp0=0, pp1=0,pp2=0,pp3=0;
  //map<int,CalParameters,less<int> >::const_iterator it=calmap.find(chanROC);
  //CalParameters y  = (*it).second;
  //pp0 = y.p0;
  //pp1 = y.p1;
  //pp2 = y.p2;
  //pp3 = y.p3;

  //
  // Use random smearing
  // Randomize the pixel response
  //float pp0  = RandGaussQ::shoot(p0,s0);
  //float pp1  = RandGaussQ::shoot(p1,s1);
  //float pp2  = RandGaussQ::shoot(p2,s2);
  //float pp3  = RandGaussQ::shoot(p3,s3);

  //newAmp = pp3 + pp2 * tanh(pp0*signal - pp1); // Final signal

  //cout<<" misscalibrate "<<col<<" "<<row<<" "<<chipIndex<<" "<<colROC<<" "
  //  <<rowROC<<" "<<signalInElectrons<<" "<<signal<<" "<<newAmp<<" "
  //  <<(signalInElectrons/theElectronPerADC)<<endl;

  return newAmp;
}
void SiPixelDigitizerAlgorithm::module_killing_conf ( void  ) [private]

Definition at line 1557 of file SiPixelDigitizerAlgorithm.cc.

References _signal, PixelDigi::channelToPixel(), DeadModules, detID, cond::rpcobgas::detid, i, Module, and use_module_killing_.

Referenced by digitize().

                                                       {
  if(!use_module_killing_)
    return;
  
  bool isbad=false;
  int detid = detID;
  
  Parameters::iterator itDeadModules=DeadModules.begin();
  
  for(; itDeadModules != DeadModules.end(); ++itDeadModules){
    int Dead_detID = itDeadModules->getParameter<int>("Dead_detID");
    if(detid==Dead_detID){
      isbad=true;
      break;
    }
  }
  
  if(!isbad)
    return;
  
  std::string Module = itDeadModules->getParameter<std::string>("Module");
  
  if(Module=="whole"){
    for(signal_map_iterator i = _signal.begin();i != _signal.end(); i++) {
      i->second.set(0.); // reset amplitude
    }
  }
  
  for(signal_map_iterator i = _signal.begin();i != _signal.end(); i++) {
    pair<int,int> ip = PixelDigi::channelToPixel(i->first);//get pixel pos

    if(Module=="tbmA" && ip.first>=80 && ip.first<=159){
      i->second.set(0.);
    }

    if( Module=="tbmB" && ip.first<=79){
      i->second.set(0.);

    }
  }
}
void SiPixelDigitizerAlgorithm::module_killing_DB ( void  ) [private]

Definition at line 1599 of file SiPixelDigitizerAlgorithm.cc.

References _signal, PixelDigi::channelToPixel(), detID, cond::rpcobgas::detid, SiPixelQuality::disabledModuleType::errorType, i, sipixelobjects::PixelROC::idInDetUnit(), j, map_, getHLTPrescaleColumns::path, edm::ESHandle< T >::product(), SiPixelBadModule_, sipixelobjects::PixelROC::toGlobal(), and use_module_killing_.

Referenced by digitize().

                                                     {
  if(!use_module_killing_)
    return;
  
  bool isbad=false;
  uint32_t detid = detID;
  
  std::vector<SiPixelQuality::disabledModuleType>disabledModules = SiPixelBadModule_->getBadComponentList();
  
  SiPixelQuality::disabledModuleType badmodule;
  
  for (size_t id=0;id<disabledModules.size();id++)
    {
      if(detid==disabledModules[id].DetID){
        isbad=true;
        badmodule = disabledModules[id];
        break;
      }
    }
  
  if(!isbad)
    return;

  //cout<<"Hit in: "<< detid <<" errorType "<< badmodule.errorType<<" BadRocs="<<hex<<SiPixelBadModule_->getBadRocs(detid)<<dec<<" "<<endl;
  if(badmodule.errorType == 0){ // this is a whole dead module.
    
    for(signal_map_iterator i = _signal.begin();i != _signal.end(); i++) {
      i->second.set(0.); // reset amplitude
    }
  }
  else { // all other module types: half-modules and single ROCs.
    // Get Bad ROC position:
    //follow the example of getBadRocPositions in CondFormats/SiPixelObjects/src/SiPixelQuality.cc
    std::vector<GlobalPixel> badrocpositions (0);
    for(unsigned int j = 0; j < 16; j++){
      if(SiPixelBadModule_->IsRocBad(detid, j) == true){
        
        std::vector<CablingPathToDetUnit> path = map_.product()->pathToDetUnit(detid);
        typedef  std::vector<CablingPathToDetUnit>::const_iterator IT;
        for  (IT it = path.begin(); it != path.end(); ++it) {
          const PixelROC* myroc = map_.product()->findItem(*it);
          if( myroc->idInDetUnit() == j) {
            LocalPixel::RocRowCol  local = { 39, 25};   //corresponding to center of ROC row, col
            GlobalPixel global = myroc->toGlobal( LocalPixel(local) );
            badrocpositions.push_back(global);
            break;
          }
        }
      }
    }// end of getBadRocPositions
    
    
    for(signal_map_iterator i = _signal.begin();i != _signal.end(); i++) {
      pair<int,int> ip = PixelDigi::channelToPixel(i->first);//get pixel pos
      
      for(std::vector<GlobalPixel>::const_iterator it = badrocpositions.begin(); it != badrocpositions.end(); ++it){
        if(it->row >= 80 && ip.first >= 80 ){
          if((fabs(ip.second - it->col) < 26) ) {i->second.set(0.);}
          else if(it->row==120 && ip.second-it->col==26){i->second.set(0.);}
          else if(it->row==119 && it->col-ip.second==26){i->second.set(0.);}
        }
        else if(it->row < 80 && ip.first < 80 ){
          if((fabs(ip.second - it->col) < 26) ){i->second.set(0.);}
          else if(it->row==40 && ip.second-it->col==26){i->second.set(0.);}
          else if(it->row==39 && it->col-ip.second==26){i->second.set(0.);}
       }
      }
    }
  }
}
void SiPixelDigitizerAlgorithm::pixel_inefficiency ( ) [private]

Definition at line 1264 of file SiPixelDigitizerAlgorithm.cc.

References _signal, PixelDigi::channelToPixel(), PixelIndices::DColumn(), PixelIndices::DColumnInModule(), detID, flatDistribution_, i, PXBDetId::layer(), LogDebug, numColumns, numRows, pIndexConverter, PixelSubdetector::PixelBarrel, DetId::subdetId(), thePixelChipEfficiency, thePixelColEfficiency, thePixelEfficiency, and PixelIndices::transformToROC().

Referenced by digitize().

                                                   {


  // Predefined efficiencies
  float pixelEfficiency  = 1.0;
  float columnEfficiency = 1.0;
  float chipEfficiency   = 1.0;

  // setup the chip indices conversion
  unsigned int Subid=DetId(detID).subdetId();
  if    (Subid==  PixelSubdetector::PixelBarrel){// barrel layers
    int layerIndex=PXBDetId(detID).layer();
    pixelEfficiency  = thePixelEfficiency[layerIndex-1];
    columnEfficiency = thePixelColEfficiency[layerIndex-1];
    chipEfficiency   = thePixelChipEfficiency[layerIndex-1];

    // This should never happen
    if(numColumns>416)  LogWarning ("Pixel Geometry") <<" wrong columns in barrel "<<numColumns;
    if(numRows>160)  LogWarning ("Pixel Geometry") <<" wrong rows in barrel "<<numRows;

  } else {                // forward disks

    // For endcaps take same for each endcap
    pixelEfficiency  = thePixelEfficiency[3];
    columnEfficiency = thePixelColEfficiency[3];
    chipEfficiency   = thePixelChipEfficiency[3];

    // Sometimes the forward pixels have wrong size,
    // this crashes the index conversion, so exit.
    if(numColumns>260 || numRows>160) {
      if(numColumns>260)  LogWarning ("Pixel Geometry") <<" wrong columns in endcaps "<<numColumns;
      if(numRows>160)  LogWarning ("Pixel Geometry") <<" wrong rows in endcaps "<<numRows;
      return;
    }
  } // if barrel/forward

#ifdef TP_DEBUG
  LogDebug ("Pixel Digitizer") << " enter pixel_inefficiency " << pixelEfficiency << " "
                               << columnEfficiency << " " << chipEfficiency;
#endif

  // Initilize the index converter
  //PixelIndices indexConverter(numColumns,numRows);
  int chipIndex = 0;
  int rowROC = 0;
  int colROC = 0;
  map<int, int, less<int> >chips, columns;
  map<int, int, less<int> >::iterator iter;

  // Find out the number of columns and rocs hits
  // Loop over hit pixels, amplitude in electrons, channel = coded row,col
  for (signal_map_iterator i = _signal.begin();i != _signal.end();i++) {

    int chan = i->first;
    pair<int,int> ip = PixelDigi::channelToPixel(chan);
    int row = ip.first;  // X in row
    int col = ip.second; // Y is in col
    //transform to ROC index coordinates
    pIndexConverter->transformToROC(col,row,chipIndex,colROC,rowROC);
    int dColInChip = pIndexConverter->DColumn(colROC); // get ROC dcol from ROC col
    //dcol in mod
    int dColInDet = pIndexConverter->DColumnInModule(dColInChip,chipIndex);

    chips[chipIndex]++;
    columns[dColInDet]++;
  }

  // Delete some ROC hits.
  for ( iter = chips.begin(); iter != chips.end() ; iter++ ) {
    //float rand  = RandFlat::shoot();
    float rand  = flatDistribution_->fire();
    if( rand > chipEfficiency ) chips[iter->first]=0;
  }

  // Delete some Dcol hits.
  for ( iter = columns.begin(); iter != columns.end() ; iter++ ) {
    //float rand  = RandFlat::shoot();
    float rand  = flatDistribution_->fire();
    if( rand > columnEfficiency ) columns[iter->first]=0;
  }

  // Now loop again over pixels to kill some of them.
  // Loop over hit pixels, amplitude in electrons, channel = coded row,col
  for(signal_map_iterator i = _signal.begin();i != _signal.end(); i++) {

    //    int chan = i->first;
    pair<int,int> ip = PixelDigi::channelToPixel(i->first);//get pixel pos
    int row = ip.first;  // X in row
    int col = ip.second; // Y is in col
    //transform to ROC index coordinates
    pIndexConverter->transformToROC(col,row,chipIndex,colROC,rowROC);
    int dColInChip = pIndexConverter->DColumn(colROC); //get ROC dcol from ROC col
    //dcol in mod
    int dColInDet = pIndexConverter->DColumnInModule(dColInChip,chipIndex);


    //float rand  = RandFlat::shoot();
    float rand  = flatDistribution_->fire();
    if( chips[chipIndex]==0 || columns[dColInDet]==0
        || rand>pixelEfficiency ) {
      // make pixel amplitude =0, pixel will be lost at clusterization
      i->second.set(0.); // reset amplitude,
    } // end if

  } // end pixel loop

} // end pixel_indefficiency
void SiPixelDigitizerAlgorithm::pixel_inefficiency_db ( void  ) [private]

Definition at line 1533 of file SiPixelDigitizerAlgorithm.cc.

References _signal, PixelDigi::channelToPixel(), detID, cond::rpcobgas::detid, i, SiPixelGainCalibrationOfflineSimService::isDead(), theSiPixelGainCalibrationService_, and use_ineff_from_db_.

Referenced by digitize().

                                                         {
  if(!use_ineff_from_db_)
    return;
  
  // Loop over hit pixels, amplitude in electrons, channel = coded row,col
  for(signal_map_iterator i = _signal.begin();i != _signal.end(); i++) {

    //    int chan = i->first;
    pair<int,int> ip = PixelDigi::channelToPixel(i->first);//get pixel pos
    int row = ip.first;  // X in row
    int col = ip.second; // Y is in col
    uint32_t detid = detID;
    //transform to ROC index coordinates
    if(theSiPixelGainCalibrationService_->isDead(detid, col, row)){
      //      std::cout << "now in isdead check, row " << detid << " " << col << "," << row << std::endl;
      // make pixel amplitude =0, pixel will be lost at clusterization
      i->second.set(0.); // reset amplitude,
    } // end if
  } // end pixel loop
} // end pixel_indefficiency
void SiPixelDigitizerAlgorithm::primary_ionization ( const PSimHit hit) [private]

Definition at line 602 of file SiPixelDigitizerAlgorithm.cc.

References _ionization_points, relval_parameters_module::energy, PSimHit::energyLoss(), PSimHit::entryPoint(), PSimHit::exitPoint(), fluctuateCharge, fluctuateEloss(), GeVperElectron, i, LogDebug, PV3DBase< T, PVType, FrameType >::mag(), NumberOfSegments, PSimHit::pabs(), PSimHit::particleType(), evf::utils::pid, point, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by digitize().

                                                                     {

// Straight line approximation for trajectory inside active media

  const float SegmentLength = 0.0010; //10microns in cm
  float energy;

  // Get the 3D segment direction vector
  LocalVector direction = hit.exitPoint() - hit.entryPoint();

  float eLoss = hit.energyLoss();  // Eloss in GeV
  float length = direction.mag();  // Track length in Silicon

  NumberOfSegments = int ( length / SegmentLength); // Number of segments
  if(NumberOfSegments < 1) NumberOfSegments = 1;

#ifdef TP_DEBUG
  LogDebug ("Pixel Digitizer")
    << " enter primary_ionzation " << NumberOfSegments
    << " shift = "
    << (hit.exitPoint().x()-hit.entryPoint().x()) << " "
    << (hit.exitPoint().y()-hit.entryPoint().y()) << " "
    << (hit.exitPoint().z()-hit.entryPoint().z()) << " "
    << hit.particleType() <<" "<< hit.pabs() ;
#endif

  float* elossVector = new float[NumberOfSegments];  // Eloss vector

  if( fluctuateCharge ) {
    //MP DA RIMUOVERE ASSOLUTAMENTE
    int pid = hit.particleType();
    //int pid=211;  // assume it is a pion

    float momentum = hit.pabs();
    // Generate fluctuated charge points
    fluctuateEloss(pid, momentum, eLoss, length, NumberOfSegments,
                   elossVector);
  }

  _ionization_points.resize( NumberOfSegments); // set size

  // loop over segments
  for ( int i = 0; i != NumberOfSegments; i++) {
    // Divide the segment into equal length subsegments
    Local3DPoint point = hit.entryPoint() +
      float((i+0.5)/NumberOfSegments) * direction;

    if( fluctuateCharge )
      energy = elossVector[i]/GeVperElectron; // Convert charge to elec.
    else
      energy = hit.energyLoss()/GeVperElectron/float(NumberOfSegments);

    EnergyDepositUnit edu( energy, point); //define position,energy point
    _ionization_points[i] = edu; // save

#ifdef TP_DEBUG
    LogDebug ("Pixel Digitizer")
      << i << " " << _ionization_points[i].x() << " "
      << _ionization_points[i].y() << " "
      << _ionization_points[i].z() << " "
      << _ionization_points[i].energy();
#endif

  }  // end for loop

  delete[] elossVector;

}
edm::DetSet< PixelDigi >::collection_type SiPixelDigitizerAlgorithm::run ( const std::vector< PSimHit > &  input,
PixelGeomDetUnit pixdet,
GlobalVector  bfield 
)

Definition at line 461 of file SiPixelDigitizerAlgorithm.cc.

References _bfield, _detp, _PixelHits, _signal, detID, digitize(), GeomDet::geographicalId(), collect_tpl::input, link_coll, LogDebug, and DetId::rawId().

Referenced by cms::SiPixelDigitizer::produce().

                                                    {

  _detp = pixdet; //cache the PixGeomDetUnit
  _PixelHits=input; //cache the SimHit
  _bfield=bfield; //cache the drift direction

  // Pixel Efficiency moved from the constructor to the method run because
  // the information of the det are not available in the constructor
  // Effciency parameters. 0 - no inefficiency, 1-low lumi, 10-high lumi

  detID= _detp->geographicalId().rawId();

  _signal.clear();

  // initalization  of pixeldigisimlinks
  link_coll.clear();

  //Digitization of the SimHits of a given pixdet
  vector<PixelDigi> collector =digitize(pixdet);

  // edm::DetSet<PixelDigi> collector;

#ifdef TP_DEBUG
  LogDebug ("PixelDigitizer") << "[SiPixelDigitizerAlgorithm] converted " << collector.size() << " PixelDigis in DetUnit" << detID;
#endif

  return collector;
}

Member Data Documentation

Definition at line 317 of file SiPixelDigitizerAlgorithm.h.

Referenced by DriftDirection(), and run().

Definition at line 352 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), drift(), and induce_signal().

Definition at line 307 of file SiPixelDigitizerAlgorithm.h.

Referenced by DriftDirection(), and run().

Definition at line 351 of file SiPixelDigitizerAlgorithm.h.

Referenced by drift(), and primary_ionization().

Definition at line 311 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), and run().

Definition at line 290 of file SiPixelDigitizerAlgorithm.h.

Referenced by add_noise(), and SiPixelDigitizerAlgorithm().

Definition at line 291 of file SiPixelDigitizerAlgorithm.h.

Referenced by add_noise(), digitize(), and SiPixelDigitizerAlgorithm().

Definition at line 293 of file SiPixelDigitizerAlgorithm.h.

Definition at line 244 of file SiPixelDigitizerAlgorithm.h.

Referenced by drift(), DriftDirection(), and SiPixelDigitizerAlgorithm().

Definition at line 282 of file SiPixelDigitizerAlgorithm.h.

Referenced by missCalibrate(), and SiPixelDigitizerAlgorithm().

Definition at line 283 of file SiPixelDigitizerAlgorithm.h.

Referenced by missCalibrate(), and SiPixelDigitizerAlgorithm().

Definition at line 284 of file SiPixelDigitizerAlgorithm.h.

Referenced by missCalibrate(), and SiPixelDigitizerAlgorithm().

Definition at line 285 of file SiPixelDigitizerAlgorithm.h.

Referenced by missCalibrate(), and SiPixelDigitizerAlgorithm().

std::map<int,CalParameters,std::less<int> > SiPixelDigitizerAlgorithm::calmap [private]

Definition at line 358 of file SiPixelDigitizerAlgorithm.h.

Referenced by SiPixelDigitizerAlgorithm().

Definition at line 249 of file SiPixelDigitizerAlgorithm.h.

Referenced by induce_signal(), and SiPixelDigitizerAlgorithm().

Definition at line 234 of file SiPixelDigitizerAlgorithm.h.

Referenced by SiPixelDigitizerAlgorithm().

Definition at line 91 of file SiPixelDigitizerAlgorithm.h.

Referenced by module_killing_conf().

Definition at line 243 of file SiPixelDigitizerAlgorithm.h.

Referenced by drift(), and SiPixelDigitizerAlgorithm().

Definition at line 330 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), make_digis(), and SiPixelDigitizerAlgorithm().

Definition at line 269 of file SiPixelDigitizerAlgorithm.h.

Referenced by missCalibrate(), and SiPixelDigitizerAlgorithm().

Definition at line 270 of file SiPixelDigitizerAlgorithm.h.

Referenced by missCalibrate(), and SiPixelDigitizerAlgorithm().

Definition at line 278 of file SiPixelDigitizerAlgorithm.h.

Referenced by missCalibrate(), and SiPixelDigitizerAlgorithm().

Definition at line 279 of file SiPixelDigitizerAlgorithm.h.

Referenced by missCalibrate(), and SiPixelDigitizerAlgorithm().

Definition at line 280 of file SiPixelDigitizerAlgorithm.h.

Referenced by missCalibrate(), and SiPixelDigitizerAlgorithm().

Definition at line 281 of file SiPixelDigitizerAlgorithm.h.

Referenced by missCalibrate(), and SiPixelDigitizerAlgorithm().

CLHEP::RandGaussQ* SiPixelDigitizerAlgorithm::gaussDistribution_ [private]

Definition at line 88 of file SiPixelDigitizerAlgorithm.h.

Definition at line 239 of file SiPixelDigitizerAlgorithm.h.

Referenced by primary_ionization(), and SiPixelDigitizerAlgorithm().

Definition at line 314 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), and make_digis().

Definition at line 316 of file SiPixelDigitizerAlgorithm.h.

Referenced by make_digis(), make_link(), and run().

Definition at line 276 of file SiPixelDigitizerAlgorithm.h.

Referenced by drift(), and DriftDirection().

Definition at line 87 of file SiPixelDigitizerAlgorithm.h.

Referenced by module_killing_DB().

Definition at line 305 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), and drift().

Definition at line 237 of file SiPixelDigitizerAlgorithm.h.

Referenced by primary_ionization(), and SiPixelDigitizerAlgorithm().

Definition at line 349 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), and pixel_inefficiency().

Definition at line 321 of file SiPixelDigitizerAlgorithm.h.

Definition at line 324 of file SiPixelDigitizerAlgorithm.h.

Definition at line 320 of file SiPixelDigitizerAlgorithm.h.

Definition at line 323 of file SiPixelDigitizerAlgorithm.h.

Definition at line 319 of file SiPixelDigitizerAlgorithm.h.

Definition at line 322 of file SiPixelDigitizerAlgorithm.h.

Definition at line 295 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), and SiPixelDigitizerAlgorithm().

CLHEP::HepRandomEngine& SiPixelDigitizerAlgorithm::rndEngine [private]

Definition at line 389 of file SiPixelDigitizerAlgorithm.h.

Referenced by SiPixelDigitizerAlgorithm().

Definition at line 242 of file SiPixelDigitizerAlgorithm.h.

Referenced by drift(), and SiPixelDigitizerAlgorithm().

Definition at line 354 of file SiPixelDigitizerAlgorithm.h.

Referenced by make_digis().

Definition at line 84 of file SiPixelDigitizerAlgorithm.h.

Referenced by module_killing_DB().

Definition at line 81 of file SiPixelDigitizerAlgorithm.h.

Referenced by drift().

Definition at line 400 of file SiPixelDigitizerAlgorithm.h.

Definition at line 275 of file SiPixelDigitizerAlgorithm.h.

Referenced by DriftDirection().

Definition at line 274 of file SiPixelDigitizerAlgorithm.h.

Referenced by DriftDirection().

Definition at line 252 of file SiPixelDigitizerAlgorithm.h.

Referenced by make_digis(), and SiPixelDigitizerAlgorithm().

Definition at line 300 of file SiPixelDigitizerAlgorithm.h.

Definition at line 251 of file SiPixelDigitizerAlgorithm.h.

Referenced by make_digis(), and SiPixelDigitizerAlgorithm().

Definition at line 331 of file SiPixelDigitizerAlgorithm.h.

Referenced by SiPixelDigitizerAlgorithm().

Definition at line 403 of file SiPixelDigitizerAlgorithm.h.

Definition at line 253 of file SiPixelDigitizerAlgorithm.h.

Referenced by add_noise(), digitize(), and SiPixelDigitizerAlgorithm().

Definition at line 332 of file SiPixelDigitizerAlgorithm.h.

Referenced by SiPixelDigitizerAlgorithm().

Definition at line 327 of file SiPixelDigitizerAlgorithm.h.

Referenced by pixel_inefficiency(), and SiPixelDigitizerAlgorithm().

Definition at line 326 of file SiPixelDigitizerAlgorithm.h.

Referenced by pixel_inefficiency(), and SiPixelDigitizerAlgorithm().

Definition at line 325 of file SiPixelDigitizerAlgorithm.h.

Referenced by pixel_inefficiency(), and SiPixelDigitizerAlgorithm().

Definition at line 296 of file SiPixelDigitizerAlgorithm.h.

Referenced by SiPixelDigitizerAlgorithm().

Definition at line 259 of file SiPixelDigitizerAlgorithm.h.

Referenced by add_noise(), and digitize().

Definition at line 261 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), and make_digis().

Definition at line 254 of file SiPixelDigitizerAlgorithm.h.

Referenced by SiPixelDigitizerAlgorithm().

Definition at line 301 of file SiPixelDigitizerAlgorithm.h.

Definition at line 257 of file SiPixelDigitizerAlgorithm.h.

Referenced by add_noise().

Definition at line 267 of file SiPixelDigitizerAlgorithm.h.

Referenced by SiPixelDigitizerAlgorithm().

Definition at line 266 of file SiPixelDigitizerAlgorithm.h.

Referenced by SiPixelDigitizerAlgorithm().

Definition at line 272 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), and SiPixelDigitizerAlgorithm().

Definition at line 273 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), and SiPixelDigitizerAlgorithm().

Definition at line 340 of file SiPixelDigitizerAlgorithm.h.

Referenced by fluctuateEloss(), and SiPixelDigitizerAlgorithm().

Definition at line 312 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), and induce_signal().

Definition at line 376 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize().

Definition at line 373 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), and pixel_inefficiency_db().

Definition at line 377 of file SiPixelDigitizerAlgorithm.h.

Referenced by drift(), and DriftDirection().

Definition at line 375 of file SiPixelDigitizerAlgorithm.h.

Referenced by digitize(), module_killing_conf(), and module_killing_DB().