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25 //
26 /// \file medical/fanoCavity/src/SteppingAction.cc
27 /// \brief Implementation of the SteppingAction class
28 //
29 //
30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32
33 #include "SteppingAction.hh"
34
35 #include "DetectorConstruction.hh"
36 #include "HistoManager.hh"
37 #include "Run.hh"
38 #include "RunAction.hh"
39 #include "TrackingAction.hh"
40
41 #include "G4Gamma.hh"
42 #include "G4RunManager.hh"
43 #include "G4SteppingManager.hh"
44 #include "G4UnitsTable.hh"
45
46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
47
48 SteppingAction::SteppingAction(DetectorConstruction* det, TrackingAction* TrAct)
49 : fDetector(det), fTrackAction(TrAct), fWall(0), fCavity(0)
50 {
51 first = true;
52 fTrackSegm = 0.;
53 fDirectionIn = G4ThreeVector(0., 0., 0.);
54 }
55
56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
57
58 SteppingAction::~SteppingAction() {}
59
60 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
61
62 void SteppingAction::UserSteppingAction(const G4Step* step)
63 {
64 // get fDetector pointers
65 if (first) {
66 fWall = fDetector->GetWall();
67 fCavity = fDetector->GetCavity();
68 first = false;
69 }
70
71 // histograms
72 G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
73
74 // get volume
75 //
76 G4StepPoint* point1 = step->GetPreStepPoint();
77 G4VPhysicalVolume* volume = point1->GetTouchableHandle()->GetVolume();
78
79 Run* run = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());
80 // count processes
81 //
82 G4StepPoint* point2 = step->GetPostStepPoint();
83 const G4VProcess* process = point2->GetProcessDefinedStep();
84 if (process) run->CountProcesses(process->GetProcessName());
85
86 // energy deposit in cavity
87 //
88 if (volume == fCavity) {
89 G4double edep = step->GetTotalEnergyDeposit();
90 if (edep > 0.) fTrackAction->AddEdepCavity(edep);
91 }
92
93 // keep only charged particles
94 //
95 if (step->GetTrack()->GetDefinition() == G4Gamma::Gamma()) return;
96
97 // step size of charged particles
98 //
99 G4int id;
100 G4double steplen = step->GetStepLength();
101 if (volume == fWall) {
102 run->StepInWall(steplen);
103 id = 9;
104 }
105 else {
106 run->StepInCavity(steplen);
107 id = 10;
108 }
109 analysisManager->FillH1(id, steplen);
110
111 // last step before hitting the cavity
112 //
113 if ((volume == fWall) && (point2->GetStepStatus() == fGeomBoundary)) {
114 fDirectionIn = point1->GetMomentumDirection();
115 }
116
117 // keep only charged particles within cavity
118 //
119 if (volume == fWall) return;
120
121 G4double ekin1 = point1->GetKineticEnergy();
122 G4double ekin2 = point2->GetKineticEnergy();
123
124 // first step in cavity
125 //
126 if (point1->GetStepStatus() == fGeomBoundary) {
127 fTrackSegm = 0.;
128 G4ThreeVector vertex = step->GetTrack()->GetVertexPosition();
129 analysisManager->FillH1(4, vertex.z());
130 run->FlowInCavity(0, ekin1);
131 analysisManager->FillH1(5, ekin1);
132 if (steplen > 0.) {
133 G4ThreeVector directionOut = (point2->GetPosition() - point1->GetPosition()).unit();
134 G4ThreeVector normal =
135 point1->GetTouchableHandle()->GetSolid()->SurfaceNormal(point1->GetPosition());
136 analysisManager->FillH1(6, std::acos(-fDirectionIn * normal));
137 analysisManager->FillH1(7, std::acos(-directionOut * normal));
138 }
139 }
140
141 // within cavity
142 //
143 if (step->GetTrack()->GetCurrentStepNumber() == 1) fTrackSegm = 0.;
144 fTrackSegm += steplen;
145 if (ekin2 <= 0.) {
146 run->AddTrakCavity(fTrackSegm);
147 analysisManager->FillH1(8, fTrackSegm);
148 }
149
150 // exit cavity
151 //
152 if (point2->GetStepStatus() == fGeomBoundary) {
153 run->FlowInCavity(1, ekin2);
154 run->AddTrakCavity(fTrackSegm);
155 analysisManager->FillH1(8, fTrackSegm);
156 }
157 }
158
159 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
160