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25 //
26 //
27 /// \file optical/LXe/src/LXePMTSD.cc
28 /// \brief Implementation of the LXePMTSD class
29 //
30 //
31 #include "LXePMTSD.hh"
32
33 #include "LXeDetectorConstruction.hh"
34 #include "LXePMTHit.hh"
35 #include "LXeUserTrackInformation.hh"
36
37 #include "G4LogicalVolume.hh"
38 #include "G4ParticleDefinition.hh"
39 #include "G4ParticleTypes.hh"
40 #include "G4SDManager.hh"
41 #include "G4Step.hh"
42 #include "G4TouchableHistory.hh"
43 #include "G4Track.hh"
44 #include "G4VPhysicalVolume.hh"
45 #include "G4VTouchable.hh"
46 #include "G4ios.hh"
47
48 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
49
50 LXePMTSD::LXePMTSD(G4String name) : G4VSensitiveDetector(name)
51 {
52 collectionName.insert("pmtHitCollection");
53 }
54
55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
56
57 LXePMTSD::~LXePMTSD()
58 {
59 delete fPMTPositionsX;
60 delete fPMTPositionsY;
61 delete fPMTPositionsZ;
62 }
63
64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
65
66 void LXePMTSD::SetPmtPositions(const std::vector<G4ThreeVector>& positions)
67 {
68 for (size_t i = 0; i < positions.size(); ++i) {
69 if (fPMTPositionsX) fPMTPositionsX->push_back(positions[i].x());
70 if (fPMTPositionsY) fPMTPositionsY->push_back(positions[i].y());
71 if (fPMTPositionsZ) fPMTPositionsZ->push_back(positions[i].z());
72 }
73 }
74
75 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
76
77 void LXePMTSD::Initialize(G4HCofThisEvent* hitsCE)
78 {
79 fPMTHitCollection = new LXePMTHitsCollection(SensitiveDetectorName, collectionName[0]);
80
81 if (fHitCID < 0) {
82 fHitCID = G4SDManager::GetSDMpointer()->GetCollectionID(fPMTHitCollection);
83 }
84 hitsCE->AddHitsCollection(fHitCID, fPMTHitCollection);
85 }
86
87 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
88
89 G4bool LXePMTSD::ProcessHits(G4Step*, G4TouchableHistory*)
90 {
91 return false;
92 }
93
94 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
95
96 // Generates a hit and uses the postStepPoint's mother volume replica number
97 // PostStepPoint because the hit is generated manually when the photon is
98 // absorbed by the photocathode
99
100 G4bool LXePMTSD::ProcessHits_boundary(const G4Step* aStep, G4TouchableHistory*)
101 {
102 // need to know if this is an optical photon
103 if (aStep->GetTrack()->GetDefinition() != G4OpticalPhoton::OpticalPhotonDefinition())
104 return false;
105
106 // User replica number 1 since photocathode is a daughter volume
107 // to the pmt which was replicated
108 G4int pmtNumber = aStep->GetPostStepPoint()->GetTouchable()->GetReplicaNumber(1);
109 G4VPhysicalVolume* physVol = aStep->GetPostStepPoint()->GetTouchable()->GetVolume(1);
110
111 // Find the correct hit collection
112 size_t n = fPMTHitCollection->entries();
113 LXePMTHit* hit = nullptr;
114 for (size_t i = 0; i < n; ++i) {
115 if ((*fPMTHitCollection)[i]->GetPMTNumber() == pmtNumber) {
116 hit = (*fPMTHitCollection)[i];
117 break;
118 }
119 }
120
121 if (hit == nullptr) { // this pmt wasn't previously hit in this event
122 hit = new LXePMTHit(); // so create new hit
123 hit->SetPMTNumber(pmtNumber);
124 hit->SetPMTPhysVol(physVol);
125 fPMTHitCollection->insert(hit);
126 hit->SetPMTPos((*fPMTPositionsX)[pmtNumber], (*fPMTPositionsY)[pmtNumber],
127 (*fPMTPositionsZ)[pmtNumber]);
128 }
129
130 hit->IncPhotonCount(); // increment hit for the selected pmt
131
132 if (!LXeDetectorConstruction::GetSphereOn()) {
133 hit->SetDrawit(true);
134 // If the sphere is disabled then this hit is automaticaly drawn
135 }
136 else { // sphere enabled
137 auto trackInfo = (LXeUserTrackInformation*)aStep->GetTrack()->GetUserInformation();
138 if (trackInfo->GetTrackStatus() & hitSphere)
139 // only draw this hit if the photon has hit the sphere first
140 hit->SetDrawit(true);
141 }
142
143 return true;
144 }
145