EcalTBH4BeamSD.cc

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// File: EcalTBH4BeamSD.cc
// Description: Sensitive Detector class for electromagnetic calorimeters
#include "DetectorDescription/Core/interface/DDFilter.h"
#include "DetectorDescription/Core/interface/DDFilteredView.h"
#include "DetectorDescription/Core/interface/DDSolid.h"
#include "DetectorDescription/Core/interface/DDSplit.h"
#include "DetectorDescription/Core/interface/DDValue.h"
#include "Geometry/EcalCommonData/interface/EcalBaseNumber.h"
#include "Geometry/EcalTestBeam/interface/EcalHodoscopeNumberingScheme.h"
#include "SimG4CMS/EcalTestBeam/interface/EcalTBH4BeamSD.h"

#include "Geometry/EcalCommonData/interface/EcalBaseNumber.h"

#include "G4Step.hh"
#include "G4Track.hh"
#include "G4VProcess.hh"

#include <CLHEP/Units/SystemOfUnits.h>

EcalTBH4BeamSD::EcalTBH4BeamSD(const std::string &name,
                               const SensitiveDetectorCatalog &clg,
                               edm::ParameterSet const &p,
                               const SimTrackManager *manager)
    : CaloSD(name, clg, p, manager), numberingScheme(nullptr) {
  edm::ParameterSet m_EcalTBH4BeamSD = p.getParameter<edm::ParameterSet>("EcalTBH4BeamSD");
  useBirk = m_EcalTBH4BeamSD.getParameter<bool>("UseBirkLaw");
  birk1 = m_EcalTBH4BeamSD.getParameter<double>("BirkC1") * (CLHEP::g / (CLHEP::MeV * CLHEP::cm2));
  birk2 = m_EcalTBH4BeamSD.getParameter<double>("BirkC2");
  birk3 = m_EcalTBH4BeamSD.getParameter<double>("BirkC3");

  EcalNumberingScheme *scheme = nullptr;
  if (name == "EcalTBH4BeamHits") {
    scheme = dynamic_cast<EcalNumberingScheme *>(new EcalHodoscopeNumberingScheme());
  } else {
    edm::LogWarning("EcalTBSim") << "EcalTBH4BeamSD: ReadoutName not supported\n";
  }

  if (scheme)
    setNumberingScheme(scheme);
  edm::LogInfo("EcalTBSim") << "Constructing a EcalTBH4BeamSD  with name " << GetName();
  edm::LogInfo("EcalTBSim") << "EcalTBH4BeamSD:: Use of Birks law is set to  " << useBirk
                            << "        with three constants kB = " << birk1 << ", C1 = " << birk2
                            << ", C2 = " << birk3;
}

EcalTBH4BeamSD::~EcalTBH4BeamSD() {
  if (numberingScheme)
    delete numberingScheme;
}

double EcalTBH4BeamSD::getEnergyDeposit(const G4Step *aStep) {
  // take into account light collection curve for crystals
  double weight = 1.;
  if (useBirk)
    weight *= getAttenuation(aStep, birk1, birk2, birk3);
  double edep = aStep->GetTotalEnergyDeposit() * weight;
  LogDebug("EcalTBSim") << "EcalTBH4BeamSD:: " << aStep->GetPreStepPoint()->GetPhysicalVolume()->GetName()
                        << " Light Collection Efficiency " << weight << " Weighted Energy Deposit " << edep / CLHEP::MeV
                        << " MeV";
  return edep;
}

uint32_t EcalTBH4BeamSD::setDetUnitId(const G4Step *aStep) {
  getBaseNumber(aStep);
  return (numberingScheme == nullptr ? 0 : numberingScheme->getUnitID(theBaseNumber));
}

void EcalTBH4BeamSD::setNumberingScheme(EcalNumberingScheme *scheme) {
  if (scheme != nullptr) {
    edm::LogInfo("EcalTBSim") << "EcalTBH4BeamSD: updates numbering scheme for " << GetName() << "\n";
    if (numberingScheme)
      delete numberingScheme;
    numberingScheme = scheme;
  }
}

void EcalTBH4BeamSD::getBaseNumber(const G4Step *aStep) {
  theBaseNumber.reset();
  const G4VTouchable *touch = aStep->GetPreStepPoint()->GetTouchable();
  int theSize = touch->GetHistoryDepth() + 1;
  if (theBaseNumber.getCapacity() < theSize)
    theBaseNumber.setSize(theSize);
  // Get name and copy numbers
  if (theSize > 1) {
    for (int ii = 0; ii < theSize; ii++) {
      theBaseNumber.addLevel(touch->GetVolume(ii)->GetName(), touch->GetReplicaNumber(ii));
      LogDebug("EcalTBSim") << "EcalTBH4BeamSD::getBaseNumber(): Adding level " << ii << ": "
                            << touch->GetVolume(ii)->GetName() << "[" << touch->GetReplicaNumber(ii) << "]";
    }
  }
}