wls/src/WLSPhotonDetSD.cc

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0026 //
0027 /// \file optical/wls/src/WLSPhotonDetSD.cc
0028 /// \brief Implementation of the WLSPhotonDetSD class
0029 //
0030 //
0031 #include "WLSPhotonDetSD.hh"
0032
0033 #include "WLSPhotonDetHit.hh"
0034 #include "WLSUserTrackInformation.hh"
0035
0036 #include "G4OpticalPhoton.hh"
0037 #include "G4SDManager.hh"
0038 #include "G4Step.hh"
0039 #include "G4ThreeVector.hh"
0040 #include "G4TouchableHistory.hh"
0041 #include "G4Track.hh"
0042 #include "G4VTouchable.hh"
0043
0044 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0045
0046 WLSPhotonDetSD::WLSPhotonDetSD(G4String name) : G4VSensitiveDetector(name)
0047 {
0048   collectionName.insert("PhotonDetHitCollection");
0049 }
0050
0051 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0052
0053 void WLSPhotonDetSD::Initialize(G4HCofThisEvent* HCE)
0054 {
0055   fPhotonDetHitCollection =
0056     new WLSPhotonDetHitsCollection(SensitiveDetectorName, collectionName[0]);
0057
0058   if (fHCID < 0) {
0059     fHCID = G4SDManager::GetSDMpointer()->GetCollectionID(fPhotonDetHitCollection);
0060   }
0061   HCE->AddHitsCollection(fHCID, fPhotonDetHitCollection);
0062 }
0063
0064 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0065
0066 G4bool WLSPhotonDetSD::ProcessHits(G4Step* aStep, G4TouchableHistory*)
0067 {
0068   if (!aStep) return false;
0069   G4Track* theTrack = aStep->GetTrack();
0070
0071   // Need to know if this is an optical photon
0072   if (theTrack->GetDefinition() != G4OpticalPhoton::OpticalPhotonDefinition()) {
0073     return false;
0074   }
0075
0076   // Find out information regarding the hit
0077   G4StepPoint* thePostPoint = aStep->GetPostStepPoint();
0078
0079   auto trackInformation = (WLSUserTrackInformation*)theTrack->GetUserInformation();
0080
0081   auto theTouchable = (G4TouchableHistory*)(thePostPoint->GetTouchable());
0082
0083   G4ThreeVector photonExit = trackInformation->GetExitPosition();
0084   G4ThreeVector photonArrive = thePostPoint->GetPosition();
0085   G4double arrivalTime = theTrack->GetGlobalTime();
0086   G4double energy = theTrack->GetTotalEnergy();
0087
0088   // Convert the global coordinate for arriving photons into
0089   // the local coordinate of the detector
0090   photonArrive = theTouchable->GetHistory()->GetTopTransform().TransformPoint(photonArrive);
0091
0092   // Creating the hit and add it to the collection
0093   fPhotonDetHitCollection->insert(
0094     new WLSPhotonDetHit(photonExit, photonArrive, arrivalTime, energy));
0095
0096   return true;
0097 }
0098
0099 void WLSPhotonDetSD::EndOfEvent(G4HCofThisEvent*)
0100 {
0101   if (verboseLevel > 1) {
0102     G4int nofHits = fPhotonDetHitCollection->entries();
0103     G4cout << G4endl << "-------->Hits Collection: in this event there are " << nofHits
0104            << " hits in the photon detector: " << G4endl;
0105     for (G4int i = 0; i < nofHits; i++)
0106       (*fPhotonDetHitCollection)[i]->Print();
0107   }
0108 }