CaTS/src/CalorimeterSD.cc

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0025 //
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0027 //
0028 //  CaTS (Calorimetry and Tracking Simulation)
0029 //
0030 //  Authors : Hans Wenzel
0031 //            Soon Yung Jun
0032 //            (Fermi National Accelerator Laboratory)
0033 //
0034 // History
0035 //   October 18th, 2021 : first implementation
0036 //
0037 // ********************************************************************
0038 //
0039 /// \file CalorimeterSD.cc
0040 /// \brief Implementation of the CaTS::CalorimeterSD class
0041
0042 // Geant4 headers
0043 #include "G4HCofThisEvent.hh"
0044 #include "G4Step.hh"
0045 #include "G4SDManager.hh"
0046 #include "G4ios.hh"
0047 // project headers
0048 #include "CalorimeterSD.hh"
0049 #include "ConfigurationManager.hh"
0050
0051 CalorimeterSD::CalorimeterSD(G4String name)
0052   : G4VSensitiveDetector(name)
0053 {
0054   G4String HCname = name + "_HC";
0055   collectionName.insert(HCname);
0056   G4cout << collectionName.size() << "   CalorimeterSD name:  " << name
0057          << " collection Name: " << HCname << G4endl;
0058   fHCID   = -1;
0059   verbose = ConfigurationManager::getInstance()->isEnable_verbose();
0060 }
0061
0062 void CalorimeterSD::Initialize(G4HCofThisEvent* hce)
0063 {
0064   fCalorimeterHitsCollection =
0065     new CalorimeterHitsCollection(SensitiveDetectorName, collectionName[0]);
0066   if(fHCID < 0)
0067   {
0068     if(verbose)
0069       G4cout << "CalorimeterSD::Initialize:  " << SensitiveDetectorName << "   "
0070              << collectionName[0] << G4endl;
0071     fHCID = G4SDManager::GetSDMpointer()->GetCollectionID(collectionName[0]);
0072   }
0073   hce->AddHitsCollection(fHCID, fCalorimeterHitsCollection);
0074 }
0075
0076 G4bool CalorimeterSD::ProcessHits(G4Step* aStep, G4TouchableHistory*)
0077 {
0078   // auto can be used for all results from retrieving functions
0079   auto edep = aStep->GetTotalEnergyDeposit() / CLHEP::MeV;
0080   if(edep == 0.)
0081     return false;
0082   auto time       = aStep->GetPreStepPoint()->GetGlobalTime() / CLHEP::ns;
0083   auto touch      = aStep->GetPreStepPoint()->GetTouchable();
0084   auto cellpos    = touch->GetTranslation();
0085   unsigned int ID = aStep->GetPreStepPoint()->GetPhysicalVolume()->GetCopyNo();
0086   auto theTrack   = aStep->GetTrack();
0087   auto particleType = theTrack->GetDefinition()->GetParticleName();
0088   //
0089   //  check if this cell has been hit before
0090   // fCalorimeterHitsCollection
0091   for(unsigned int j = 0; j < fCalorimeterHitsCollection->entries(); j++)
0092   {
0093     CalorimeterHit* aPreviousHit = (*fCalorimeterHitsCollection)[j];
0094     if(ID == aPreviousHit->GetId())
0095     {
0096       aPreviousHit->SetEdep(aStep->GetTotalEnergyDeposit() +
0097                             aPreviousHit->GetEdep());
0098       if((particleType == "e+") || (particleType == "gamma") ||
0099          (particleType == "e-"))
0100       {
0101         aPreviousHit->Setem_Edep(edep + aPreviousHit->Getem_Edep());
0102       }
0103       return true;
0104     }
0105   }
0106   //
0107   // otherwise create a new hit:
0108   //
0109   CalorimeterHit* newHit;
0110   if((particleType == "e+") || (particleType == "gamma") ||
0111      (particleType == "e-"))
0112   {
0113     newHit = new CalorimeterHit(ID, edep, edep, time, cellpos);
0114   }
0115   else
0116   {
0117     newHit = new CalorimeterHit(ID, edep, 0.0, time, cellpos);
0118   }
0119   fCalorimeterHitsCollection->insert(newHit);
0120   return true;
0121 }
0122
0123 void CalorimeterSD::EndOfEvent(G4HCofThisEvent*)
0124 {
0125   G4int NbHits = fCalorimeterHitsCollection->entries();
0126   if(verbose)
0127     G4cout << " Number of CalorimeterHits:  " << NbHits << G4endl;
0128 }