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25 //
26 /// \file TrackingAction.cc
27 /// \brief Implementation of the TrackingAction class
28 //
29 //
30
31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
33
34 #include "TrackingAction.hh"
35
36 #include "Run.hh"
37
38 #include "G4IonTable.hh"
39 #include "G4ParticleDefinition.hh"
40 #include "G4ParticleTypes.hh"
41 #include "G4Step.hh"
42 #include "G4StepPoint.hh"
43 #include "G4SystemOfUnits.hh"
44 #include "G4Track.hh"
45
46 const std::array<G4String, TrackingAction::fkNumberScoringVolumes>
47 TrackingAction::fkArrayScoringVolumeNames = {"layer"};
48
49 const std::array<G4String, TrackingAction::fkNumberKinematicRegions>
50 TrackingAction::fkArrayKinematicRegionNames = {"", "below 20 MeV", "above 20 MeV"};
51
52 const std::array<G4String, TrackingAction::fkNumberParticleTypes>
53 TrackingAction::fkArrayParticleTypeNames = {"all", "electron", "gamma", "muon",
54 "neutrino", "pion", "neutron", "proton",
55 "ion", "otherMeson", "otherBaryon"};
56
57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
58
59 G4int TrackingAction::GetIndex(const G4int iScoringVolume, const G4int iKinematicRegion,
60 const G4int iParticleType)
61 {
62 G4int index = -1;
63 if (iScoringVolume >= 0 && iScoringVolume < fkNumberScoringVolumes && iKinematicRegion >= 0
64 && iKinematicRegion < fkNumberKinematicRegions && iParticleType >= 0
65 && iParticleType < fkNumberParticleTypes)
66 {
67 index = iScoringVolume * fkNumberKinematicRegions * fkNumberParticleTypes
68 + iKinematicRegion * fkNumberParticleTypes + iParticleType;
69 }
70 return index;
71 }
72
73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
74
75 TrackingAction::TrackingAction() : G4UserTrackingAction()
76 {
77 Initialize();
78 }
79
80 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
81
82 void TrackingAction::Initialize()
83 {
84 // Initialization needed at the beginning of each Run
85 fArrayMultiplicities.fill(0);
86 fArraySumKineticEnergies.fill(0.0);
87 }
88
89 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
90
91 void TrackingAction::PreUserTrackingAction(const G4Track* aTrack)
92 {
93 // This method is called not only once when a particle is created,
94 // but also each time it is resumed, in the case the track gets suspended,
95 // as it happens in the case of neutrons with _HP Physics Lists.
96 // To be sure that we collect information about a track one and only once,
97 // we require that the current step be the first one.
98 if (aTrack == nullptr || aTrack->GetCurrentStepNumber() != 0 || aTrack->GetDefinition() == nullptr
99 || aTrack->GetLogicalVolumeAtVertex() == nullptr
100 || aTrack->GetLogicalVolumeAtVertex()->GetName() != "logicLayer")
101 return;
102 G4int iScoringVolume = 0;
103 // Three kinematical regions: [0] : any value ; [1] : below 20 MeV ; [2] : above 20 MeV
104 G4int iKinematicRegion = aTrack->GetKineticEnergy() < 20.0 ? 1 : 2;
105 G4int absPdg = std::abs(aTrack->GetDefinition()->GetPDGEncoding());
106 G4int iParticleType = -1;
107 if (absPdg == 11)
108 iParticleType = 1; // electron (and positron)
109 else if (absPdg == 22)
110 iParticleType = 2; // gamma
111 else if (absPdg == 13)
112 iParticleType = 3; // muons (mu- and mu+)
113 else if (absPdg == 12 || absPdg == 14 || absPdg == 16)
114 iParticleType = 4;
115 // neutrinos (and anti-neutrinos), all flavors
116 else if (absPdg == 111 || absPdg == 211)
117 iParticleType = 5; // (charged) pions
118 else if (absPdg == 2112)
119 iParticleType = 6; // neutron (and anti-neutron)
120 else if (absPdg == 2212)
121 iParticleType = 7; // proton (and anti-proton)
122 else if (G4IonTable::IsIon(aTrack->GetDefinition())
123 || G4IonTable::IsAntiIon(aTrack->GetDefinition()))
124 iParticleType = 8;
125 // ions (and anti-ions)
126 else if (absPdg < 1000)
127 iParticleType = 9; // other mesons (e.g. kaons)
128 // (Note: this works in most cases, but not always!)
129 else if (absPdg > 1000)
130 iParticleType = 10; // other baryons (e.g. hyperons,
131 // anti-hyperons, etc.)
132 // Consider the specific case : scoring volume, kinematic region and particle type
133 G4int index = GetIndex(iScoringVolume, iKinematicRegion, iParticleType);
134 ++fArrayMultiplicities[index];
135 fArraySumKineticEnergies[index] += aTrack->GetKineticEnergy();
136 // Consider the "all" particle case, with the same scoring volume and kinematic region
137 index = GetIndex(iScoringVolume, iKinematicRegion, 0);
138 ++fArrayMultiplicities[index];
139 fArraySumKineticEnergies[index] += aTrack->GetKineticEnergy();
140 // Consider the "any" kinematic region case, with the same scoring volume and particle type
141 index = GetIndex(iScoringVolume, 0, iParticleType);
142 ++fArrayMultiplicities[index];
143 fArraySumKineticEnergies[index] += aTrack->GetKineticEnergy();
144 // Consider the "any" kinematic region and "all" particle, with the same scoring volume
145 index = GetIndex(iScoringVolume, 0, 0);
146 ++fArrayMultiplicities[index];
147 fArraySumKineticEnergies[index] += aTrack->GetKineticEnergy();
148 if (fRunPtr) {
149 fRunPtr->SetTrackingArray1(fArrayMultiplicities);
150 fRunPtr->SetTrackingArray2(fArraySumKineticEnergies);
151 }
152 }
153
154 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
155
156 void TrackingAction::PostUserTrackingAction(const G4Track* /* aTrack */) {}
157
158 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
159