CalorimeterSD.cc

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#include "CalorimeterSD.hh"
 
#include "G4HCofThisEvent.hh"
#include "G4SDManager.hh"
#include "G4Step.hh"
 
namespace B4c {
 
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CalorimeterSD::CalorimeterSD(const G4String& name, const G4String& hitsCollectionName,
                             G4int nofCells)
    : G4VSensitiveDetector(name), fNofCells(nofCells) {
  collectionName.insert(hitsCollectionName);
}
 
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void CalorimeterSD::Initialize(G4HCofThisEvent* hce) {
  // Create hits collection
  fHitsCollection = new CalorHitsCollection(SensitiveDetectorName, collectionName[0]);
 
  // Add this collection in hce
  auto hcID = G4SDManager::GetSDMpointer()->GetCollectionID(collectionName[0]);
  hce->AddHitsCollection(hcID, fHitsCollection);
 
  // Create hits
  // fNofCells for cells + one more for total sums
  for (G4int i = 0; i < fNofCells + 1; i++) {
    fHitsCollection->insert(new CalorHit());
  }
}
 
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G4bool CalorimeterSD::ProcessHits(G4Step* step, G4TouchableHistory*) {
  // energy deposit
  auto edep = step->GetTotalEnergyDeposit();
 
  // step length
  G4double stepLength = 0.;
  if (step->GetTrack()->GetDefinition()->GetPDGCharge() != 0.) {
    stepLength = step->GetStepLength();
  }
 
  if (edep == 0. && stepLength == 0.)
    return false;
 
  auto touchable = (step->GetPreStepPoint()->GetTouchable());
 
  // Get calorimeter cell id
  auto layerNumber = touchable->GetReplicaNumber(1);
 
  // Get hit accounting data for this cell
  auto hit = (*fHitsCollection)[layerNumber];
  if (!hit) {
    G4ExceptionDescription msg;
    msg << "Cannot access hit " << layerNumber;
    G4Exception("CalorimeterSD::ProcessHits()", "MyCode0004", FatalException, msg);
  }
 
  // Get hit for total accounting
  auto hitTotal = (*fHitsCollection)[fHitsCollection->entries() - 1];
 
  // Add values
  hit->Add(edep, stepLength);
  hitTotal->Add(edep, stepLength);
 
  return true;
}
 
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void CalorimeterSD::EndOfEvent(G4HCofThisEvent*) {
  if (verboseLevel > 1) {
    auto nofHits = fHitsCollection->entries();
    G4cout << G4endl << "-------->Hits Collection: in this event they are " << nofHits
           << " hits in the tracker chambers: " << G4endl;
    for (std::size_t i = 0; i < nofHits; ++i)
      (*fHitsCollection)[i]->Print();
  }
}
 
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} // namespace B4c