#include <RPCSimAverageNoiseEff.h>

Inheritance diagram for RPCSimAverageNoiseEff:

Public Member Functions
int	getClSize (float posX)
	RPCSimAverageNoiseEff (const edm::ParameterSet &config)
void	setRandomEngine (CLHEP::HepRandomEngine &eng)
void	simulate (const RPCRoll *roll, const edm::PSimHitContainer &rpcHits)
void	simulateNoise (const RPCRoll *)
	~RPCSimAverageNoiseEff ()
Private Member Functions
void	init ()
Private Attributes
RPCSynchronizer *	_rpcSync
double	aveCls
double	aveEff
std::map< int, std::vector < double > >	clsMap
double	dtimCs
CLHEP::RandFlat *	flatDistribution
CLHEP::RandFlat *	flatDistribution2
double	frate
double	gate
std::ifstream *	infile
double	lbGate
int	N_hits
int	nbxing
CLHEP::RandPoissonQ *	poissonDistribution_
double	rate
double	resEle
double	resRPC
bool	rpcdigiprint
double	sspeed
std::vector< double >	sum_clsize
double	timOff

Detailed Description

Definition at line 31 of file RPCSimAverageNoiseEff.h.

Constructor & Destructor Documentation

RPCSimAverageNoiseEff::RPCSimAverageNoiseEff ( const edm::ParameterSet & config )

Definition at line 50 of file RPCSimAverageNoiseEff.cc.

References _rpcSync, aveCls, aveEff, gather_cfg::cout, dtimCs, frate, gate, edm::ParameterSet::getParameter(), lbGate, nbxing, rate, resEle, resRPC, rpcdigiprint, sspeed, and timOff.

                                                                          : 
  RPCSim(config)
{

  aveEff = config.getParameter<double>("averageEfficiency");
  aveCls = config.getParameter<double>("averageClusterSize");
  resRPC = config.getParameter<double>("timeResolution");
  timOff = config.getParameter<double>("timingRPCOffset");
  dtimCs = config.getParameter<double>("deltatimeAdjacentStrip");
  resEle = config.getParameter<double>("timeJitter");
  sspeed = config.getParameter<double>("signalPropagationSpeed");
  lbGate = config.getParameter<double>("linkGateWidth");
  rpcdigiprint = config.getParameter<bool>("printOutDigitizer");

  rate=config.getParameter<double>("Rate");
  nbxing=config.getParameter<int>("Nbxing");
  gate=config.getParameter<double>("Gate");
  frate=config.getParameter<double>("Frate");

  if (rpcdigiprint) {
    std::cout <<"Average Efficiency        = "<<aveEff<<std::endl;
    std::cout <<"Average Cluster Size      = "<<aveCls<<" strips"<<std::endl;
    std::cout <<"RPC Time Resolution       = "<<resRPC<<" ns"<<std::endl;
    std::cout <<"RPC Signal formation time = "<<timOff<<" ns"<<std::endl;
    std::cout <<"RPC adjacent strip delay  = "<<dtimCs<<" ns"<<std::endl;
    std::cout <<"Electronic Jitter         = "<<resEle<<" ns"<<std::endl;
    std::cout <<"Signal propagation time   = "<<sspeed<<" x c"<<std::endl;
    std::cout <<"Link Board Gate Width     = "<<lbGate<<" ns"<<std::endl;
  }

  _rpcSync = new RPCSynchronizer(config);

}

RPCSimAverageNoiseEff::~RPCSimAverageNoiseEff ( )

Definition at line 91 of file RPCSimAverageNoiseEff.cc.

References _rpcSync, flatDistribution, flatDistribution2, and poissonDistribution_.

{
  //Deleting the distribution defined in the constructor
  delete flatDistribution;
  delete flatDistribution2;
  delete poissonDistribution_;
  delete _rpcSync;
}

Member Function Documentation

int RPCSimAverageNoiseEff::getClSize ( float posX )

Definition at line 100 of file RPCSimAverageNoiseEff.cc.

References clsMap, flatDistribution, RPCSimSetUp::getClsMap(), RPCSim::getRPCSimSetUp(), min, and sum_clsize.

Referenced by simulate().

{

  std::map< int, std::vector<double> > clsMap = getRPCSimSetUp()->getClsMap();

  int cnt = 1;
  int min = 1;
  double func=0.0;
  std::vector<double> sum_clsize;

  double rr_cl = flatDistribution->fire(1);
  if(0.0 <= posX && posX < 0.2)  {
    func = (clsMap[1])[(clsMap[1]).size()-1]*(rr_cl);
    sum_clsize = clsMap[1];
  }
  if(0.2 <= posX && posX < 0.4) {
    func = (clsMap[2])[(clsMap[2]).size()-1]*(rr_cl);
    sum_clsize = clsMap[2];
  }
  if(0.4 <= posX && posX < 0.6) {
    func = (clsMap[3])[(clsMap[3]).size()-1]*(rr_cl);
    sum_clsize = clsMap[3];
  }
  if(0.6 <= posX && posX < 0.8) {
    func = (clsMap[4])[(clsMap[4]).size()-1]*(rr_cl);
    sum_clsize = clsMap[4];
  }
  if(0.8 <= posX && posX < 1.0)  {
    func = (clsMap[5])[(clsMap[5]).size()-1]*(rr_cl);
    sum_clsize = clsMap[5];
  }

  for(vector<double>::iterator iter = sum_clsize.begin();
      iter != sum_clsize.end(); ++iter){
    cnt++;
    if(func > (*iter)){
      min = cnt;
    }
    else if(func < (*iter)){
      break;
    }
  }
  return min;
}

void RPCSimAverageNoiseEff::init ( void ) [inline, private, virtual]

Implements RPCSim.

Definition at line 47 of file RPCSimAverageNoiseEff.h.

{};

void RPCSimAverageNoiseEff::setRandomEngine ( CLHEP::HepRandomEngine & eng ) [virtual]

Implements RPCSim.

Definition at line 84 of file RPCSimAverageNoiseEff.cc.

References _rpcSync, flatDistribution, flatDistribution2, poissonDistribution_, and RPCSynchronizer::setRandomEngine().

                                                                    {
  flatDistribution = new CLHEP::RandFlat(eng);
  flatDistribution2 = new CLHEP::RandFlat(eng);
  poissonDistribution_ = new CLHEP::RandPoissonQ(eng);
  _rpcSync->setRandomEngine(eng);
}

void RPCSimAverageNoiseEff::simulate	(	const RPCRoll *	roll,
		const edm::PSimHitContainer &	rpcHits
	)		`[virtual]`

Implements RPCSim.

Definition at line 146 of file RPCSimAverageNoiseEff.cc.

References _rpcSync, RPCRoll::centreOfStrip(), Topology::channel(), edm::DetSet< T >::clear(), alignCSCRings::e, flatDistribution, getClSize(), RPCSim::getRPCSimSetUp(), RPCSynchronizer::getSimHitBx(), i, RPCRoll::id(), RPCGeomServ::name(), RPCRoll::nstrips(), DetId::rawId(), RPCSynchronizer::setRPCSimSetUp(), RPCRoll::specs(), RPCRoll::strip(), RPCSim::strips, RPCSim::theDetectorHitMap, RPCSim::theRpcDigiSimLinks, RPCRollSpecs::topology(), w(), and PV3DBase< T, PVType, FrameType >::x().

{

  _rpcSync->setRPCSimSetUp(getRPCSimSetUp());
  theRpcDigiSimLinks.clear();
  theDetectorHitMap.clear();
  theRpcDigiSimLinks = RPCDigiSimLinks(roll->id().rawId());

  RPCDetId rpcId = roll->id();
  RPCGeomServ RPCname(rpcId);
  std::string nameRoll = RPCname.name();

  const Topology& topology=roll->specs()->topology();

  for (edm::PSimHitContainer::const_iterator _hit = rpcHits.begin();
       _hit != rpcHits.end(); ++_hit){

    if(_hit-> particleType() == 11) continue;

    // Here I hould check if the RPC are up side down;
    const LocalPoint& entr=_hit->entryPoint();

    int time_hit = _rpcSync->getSimHitBx(&(*_hit));
    float posX = roll->strip(_hit->localPosition()) - static_cast<int>(roll->strip(_hit->localPosition()));

    std::vector<float> veff = (getRPCSimSetUp())->getEff(rpcId.rawId());

    // Effinciecy
    int centralStrip = topology.channel(entr)+1;;
    float fire = flatDistribution->fire(1);

    if (fire < veff[centralStrip-1]) {

      int fstrip=centralStrip;
      int lstrip=centralStrip;

      // Compute the cluster size
      double w = flatDistribution->fire(1);
      if (w < 1.e-10) w=1.e-10;
      int clsize = this->getClSize(posX);

      std::vector<int> cls;
      cls.push_back(centralStrip);
      if (clsize > 1){
        for (int cl = 0; cl < (clsize-1)/2; cl++){
          if (centralStrip - cl -1 >= 1  ){
            fstrip = centralStrip-cl-1;
            cls.push_back(fstrip);
          }
          if (centralStrip + cl + 1 <= roll->nstrips() ){
            lstrip = centralStrip+cl+1;
            cls.push_back(lstrip);
          }
        }
        if (clsize%2 == 0 ){
          // insert the last strip according to the 
          // simhit position in the central strip 
          double deltaw=roll->centreOfStrip(centralStrip).x()-entr.x();
          if (deltaw<0.) {
            if (lstrip < roll->nstrips() ){
              lstrip++;
              cls.push_back(lstrip);
            }
          }else{
            if (fstrip > 1 ){
              fstrip--;
              cls.push_back(fstrip);
            }
          }
        }
      }

      for (std::vector<int>::iterator i=cls.begin(); i!=cls.end();i++){
        // Check the timing of the adjacent strip
        if(*i != centralStrip){
          if(flatDistribution->fire(1) < veff[*i-1]){
            std::pair<int, int> digi(*i,time_hit);
            strips.insert(digi);

            theDetectorHitMap.insert(DetectorHitMap::value_type(digi,&(*_hit)));
          }
        } 
        else {
          std::pair<int, int> digi(*i,time_hit);
          theDetectorHitMap.insert(DetectorHitMap::value_type(digi,&(*_hit)));

          strips.insert(digi);
        }
      }
    }
  }
}

void RPCSimAverageNoiseEff::simulateNoise ( const RPCRoll * roll ) [virtual]

Implements RPCSim.

Definition at line 240 of file RPCSimAverageNoiseEff.cc.

References compareJSON::const, flatDistribution2, frate, gate, RPCSim::getRPCSimSetUp(), i, RPCRoll::id(), j, N_hits, RPCGeomServ::name(), nbxing, RPCRoll::nstrips(), poissonDistribution_, DetId::rawId(), RPCDetId::region(), RPCSim::strips, RPCRoll::topology(), and x.

{

  RPCDetId rpcId = roll->id();

  RPCGeomServ RPCname(rpcId);
  std::string nameRoll = RPCname.name();

  std::vector<float> vnoise = (getRPCSimSetUp())->getNoise(rpcId.rawId());
  std::vector<float> veff = (getRPCSimSetUp())->getEff(rpcId.rawId());

  unsigned int nstrips = roll->nstrips();
  double area = 0.0;
  
  if ( rpcId.region() == 0 )
    {
      const RectangularStripTopology* top_ = dynamic_cast<const
        RectangularStripTopology*>(&(roll->topology()));
      float xmin = (top_->localPosition(0.)).x();
      float xmax = (top_->localPosition((float)roll->nstrips())).x();
      float striplength = (top_->stripLength());
      area = striplength*(xmax-xmin);
    }
  else
    {
      const TrapezoidalStripTopology* top_=dynamic_cast<const TrapezoidalStripTopology*>(&(roll->topology()));
      float xmin = (top_->localPosition(0.)).x();
      float xmax = (top_->localPosition((float)roll->nstrips())).x();
      float striplength = (top_->stripLength());
      area = striplength*(xmax-xmin);
    }

  for(unsigned int j = 0; j < vnoise.size(); ++j){
    
    if(j >= nstrips) break; 
    
    // The efficiency of 0% does not imply on the noise rate. 
    // If the strip is masked the noise rate should be 0 Hz/cm^2 
    //    if(veff[j] == 0) continue;


    //    double ave = vnoise[j]*nbxing*gate*area*1.0e-9*frate;
    // The vnoise is the noise rate per strip, so we shout multiply not 
    // by the chamber area, 
    // but the strip area which is area/((float)roll->nstrips()));
    double ave = 
      vnoise[j]*nbxing*gate*area*1.0e-9*frate/((float)roll->nstrips());

    N_hits = poissonDistribution_->fire(ave);

    for (int i = 0; i < N_hits; i++ ){
      
      int time_hit = (static_cast<int>(flatDistribution2->fire((nbxing*gate)/gate))) - nbxing/2;
      std::pair<int, int> digi(j+1,time_hit);
      strips.insert(digi);
    }
  }
}