MTDTimeCalib Class Reference

#include <MTDTimeCalib.h>

Public Member Functions
float	getTimeCalib (const MTDDetId &id) const
	MTDTimeCalib (edm::ParameterSet const &conf, const MTDGeometry *geom, const MTDTopology *topo)
	~MTDTimeCalib ()

Private Attributes
float	btlLightCollSlope_
float	btlLightCollTime_
float	btlTimeOffset_
float	etlTimeOffset_
const MTDGeometry *	geom_
const MTDTopology *	topo_

Detailed Description

Definition at line 11 of file MTDTimeCalib.h.

Constructor & Destructor Documentation

MTDTimeCalib()

MTDTimeCalib::MTDTimeCalib	(	edm::ParameterSet const &	conf,
		const MTDGeometry *	geom,
		const MTDTopology *	topo
	)

Definition at line 11 of file MTDTimeCalib.cc.

    : geom_(geom),
      topo_(topo),
      btlTimeOffset_(conf.getParameter<double>("BTLTimeOffset")),
      etlTimeOffset_(conf.getParameter<double>("ETLTimeOffset")),
      btlLightCollTime_(conf.getParameter<double>("BTLLightCollTime")),
      btlLightCollSlope_(conf.getParameter<double>("BTLLightCollSlope")) {}

~MTDTimeCalib()

MTDTimeCalib::~MTDTimeCalib ( )

inline

Definition at line 15 of file MTDTimeCalib.h.

{};

Member Function Documentation

getTimeCalib()

float MTDTimeCalib::getTimeCalib

(

const MTDDetId &

id

)

const

Definition at line 19 of file MTDTimeCalib.cc.

                                                         {
  if (id.subDetector() != MTDDetId::FastTime) {
    throw cms::Exception("MTDTimeCalib") << "MTDDetId: " << std::hex << id.rawId() << " is invalid!" << std::dec
                                         << std::endl;
  }
 
  float time_calib = 0.;
 
  if (id.mtdSubDetector() == MTDDetId::BTL) {
    time_calib += btlTimeOffset_;
    BTLDetId hitId(id);
    //for BTL topology gives different layout id
    DetId geoId = hitId.geographicalId(MTDTopologyMode::crysLayoutFromTopoMode(topo_->getMTDTopologyMode()));
    const MTDGeomDet* thedet = geom_->idToDet(geoId);
 
    if (thedet == nullptr) {
      throw cms::Exception("MTDTimeCalib") << "GeographicalID: " << std::hex << geoId.rawId() << " (" << id.rawId()
                                           << ") is invalid!" << std::dec << std::endl;
    }
    const ProxyMTDTopology& topoproxy = static_cast<const ProxyMTDTopology&>(thedet->topology());
    const RectangularMTDTopology& topo = static_cast<const RectangularMTDTopology&>(topoproxy.specificTopology());
 
    if (MTDTopologyMode::crysLayoutFromTopoMode(topo_->getMTDTopologyMode()) == BTLDetId::CrysLayout::tile) {
      time_calib -= btlLightCollTime_;  //simply remove the offset introduced at sim level
    } else if (MTDTopologyMode::crysLayoutFromTopoMode(topo_->getMTDTopologyMode()) == BTLDetId::CrysLayout::bar ||
               MTDTopologyMode::crysLayoutFromTopoMode(topo_->getMTDTopologyMode()) ==
                   BTLDetId::CrysLayout::barphiflat) {
      //for bars in phi
      time_calib -= 0.5 * topo.pitch().first * btlLightCollSlope_;  //time offset for bar time is L/2v
    } else if (MTDTopologyMode::crysLayoutFromTopoMode(topo_->getMTDTopologyMode()) == BTLDetId::CrysLayout::barzflat) {
      //for bars in z
      time_calib -= 0.5 * topo.pitch().second * btlLightCollSlope_;  //time offset for bar time is L/2v
    }
  } else if (id.mtdSubDetector() == MTDDetId::ETL) {
    time_calib += etlTimeOffset_;
  } else {
    throw cms::Exception("MTDTimeCalib") << "MTDDetId: " << std::hex << id.rawId() << " is invalid!" << std::dec
                                         << std::endl;
  }
 
  return time_calib;
}

References BTLDetId::bar, BTLDetId::barphiflat, BTLDetId::barzflat, MTDDetId::BTL, btlLightCollSlope_, btlLightCollTime_, btlTimeOffset_, MTDTopologyMode::crysLayoutFromTopoMode(), TauDecayModes::dec, MTDDetId::ETL, etlTimeOffset_, Exception, MTDDetId::FastTime, BTLDetId::geographicalId(), geom_, MTDTopology::getMTDTopologyMode(), MTDGeometry::idToDet(), DetId::rawId(), ProxyMTDTopology::specificTopology(), BTLDetId::tile, topo_, and GeomDet::topology().

Referenced by MTDRecHitAlgo::makeRecHit().

Member Data Documentation

btlLightCollSlope_

float MTDTimeCalib::btlLightCollSlope_

private

Definition at line 28 of file MTDTimeCalib.h.

Referenced by getTimeCalib().

btlLightCollTime_

float MTDTimeCalib::btlLightCollTime_

private

Definition at line 27 of file MTDTimeCalib.h.

Referenced by getTimeCalib().

btlTimeOffset_

float MTDTimeCalib::btlTimeOffset_

private

Definition at line 23 of file MTDTimeCalib.h.

Referenced by getTimeCalib().

etlTimeOffset_

float MTDTimeCalib::etlTimeOffset_

private

Definition at line 24 of file MTDTimeCalib.h.

Referenced by getTimeCalib().

geom_

const MTDGeometry* MTDTimeCalib::geom_

private

Definition at line 21 of file MTDTimeCalib.h.

Referenced by getTimeCalib().

topo_

const MTDTopology* MTDTimeCalib::topo_

private

Definition at line 22 of file MTDTimeCalib.h.

Referenced by getTimeCalib().