LXe/src/LXePMTSD.cc

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0025 //
0026 /// \file LXePMTSD.cc
0027 /// \brief Implementation of the LXePMTSD class
0028
0029 #include "LXePMTSD.hh"
0030
0031 #include "LXeDetectorConstruction.hh"
0032 #include "LXePMTHit.hh"
0033 #include "LXeUserTrackInformation.hh"
0034
0035 #include "G4LogicalVolume.hh"
0036 #include "G4ParticleDefinition.hh"
0037 #include "G4ParticleTypes.hh"
0038 #include "G4SDManager.hh"
0039 #include "G4Step.hh"
0040 #include "G4TouchableHistory.hh"
0041 #include "G4Track.hh"
0042 #include "G4VPhysicalVolume.hh"
0043 #include "G4VTouchable.hh"
0044 #include "G4ios.hh"
0045
0046 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0047
0048 LXePMTSD::LXePMTSD(G4String name) : G4VSensitiveDetector(name)
0049 {
0050   collectionName.insert("pmtHitCollection");
0051 }
0052
0053 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0054
0055 LXePMTSD::~LXePMTSD()
0056 {
0057   delete fPMTPositionsX;
0058   delete fPMTPositionsY;
0059   delete fPMTPositionsZ;
0060 }
0061
0062 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0063
0064 void LXePMTSD::SetPmtPositions(const std::vector<G4ThreeVector>& positions)
0065 {
0066   for (size_t i = 0; i < positions.size(); ++i) {
0067     if (fPMTPositionsX) fPMTPositionsX->push_back(positions[i].x());
0068     if (fPMTPositionsY) fPMTPositionsY->push_back(positions[i].y());
0069     if (fPMTPositionsZ) fPMTPositionsZ->push_back(positions[i].z());
0070   }
0071 }
0072
0073 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0074
0075 void LXePMTSD::Initialize(G4HCofThisEvent* hitsCE)
0076 {
0077   fPMTHitCollection = new LXePMTHitsCollection(SensitiveDetectorName, collectionName[0]);
0078
0079   if (fHitCID < 0) {
0080     fHitCID = G4SDManager::GetSDMpointer()->GetCollectionID(fPMTHitCollection);
0081   }
0082   hitsCE->AddHitsCollection(fHitCID, fPMTHitCollection);
0083 }
0084
0085 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0086
0087 G4bool LXePMTSD::ProcessHits(G4Step*, G4TouchableHistory*)
0088 {
0089   return false;
0090 }
0091
0092 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0093
0094 // Generates a hit and uses the postStepPoint's mother volume replica number
0095 // PostStepPoint because the hit is generated manually when the photon is
0096 // absorbed by the photocathode
0097
0098 G4bool LXePMTSD::ProcessHits_boundary(const G4Step* aStep, G4TouchableHistory*)
0099 {
0100   // need to know if this is an optical photon
0101   if (aStep->GetTrack()->GetDefinition() != G4OpticalPhoton::OpticalPhotonDefinition())
0102     return false;
0103
0104   // User replica number 1 since photocathode is a daughter volume
0105   // to the pmt which was replicated
0106   G4int pmtNumber = aStep->GetPostStepPoint()->GetTouchable()->GetReplicaNumber(1);
0107   G4VPhysicalVolume* physVol = aStep->GetPostStepPoint()->GetTouchable()->GetVolume(1);
0108
0109   // Find the correct hit collection
0110   size_t n = fPMTHitCollection->entries();
0111   LXePMTHit* hit = nullptr;
0112   for (size_t i = 0; i < n; ++i) {
0113     if ((*fPMTHitCollection)[i]->GetPMTNumber() == pmtNumber) {
0114       hit = (*fPMTHitCollection)[i];
0115       break;
0116     }
0117   }
0118
0119   if (hit == nullptr) {  // this pmt wasn't previously hit in this event
0120     hit = new LXePMTHit();  // so create new hit
0121     hit->SetPMTNumber(pmtNumber);
0122     hit->SetPMTPhysVol(physVol);
0123     fPMTHitCollection->insert(hit);
0124     hit->SetPMTPos((*fPMTPositionsX)[pmtNumber], (*fPMTPositionsY)[pmtNumber],
0125                    (*fPMTPositionsZ)[pmtNumber]);
0126   }
0127
0128   hit->IncPhotonCount();  // increment hit for the selected pmt
0129
0130   if (!LXeDetectorConstruction::GetSphereOn()) {
0131     hit->SetDrawit(true);
0132     // If the sphere is disabled then this hit is automaticaly drawn
0133   }
0134   else {  // sphere enabled
0135     auto trackInfo = (LXeUserTrackInformation*)aStep->GetTrack()->GetUserInformation();
0136     if (trackInfo->GetTrackStatus() & hitSphere)
0137       // only draw this hit if the photon has hit the sphere first
0138       hit->SetDrawit(true);
0139   }
0140
0141   return true;
0142 }