source: trunk/examples/extended/electromagnetic/TestEm5/src/TrackingAction.cc

Last change on this file was 1337, checked in by garnier, 15 years ago

tag geant4.9.4 beta 1 + modifs locales
File size: 6.5 KB
Line 
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25//
26//
27// $Id: TrackingAction.cc,v 1.18 2008/08/28 15:28:04 maire Exp $
28// GEANT4 tag $Name: geant4-09-04-beta-01 $
29//
30//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32
33#include "TrackingAction.hh"
34
35#include "DetectorConstruction.hh"
36#include "RunAction.hh"
37#include "EventAction.hh"
38#include "HistoManager.hh"
39
40#include "G4Track.hh"
41
42//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
43
44TrackingAction::TrackingAction(DetectorConstruction* DET,RunAction* RA,
45 EventAction* EA, HistoManager* HM)
46:detector(DET), runaction(RA), eventaction(EA), histoManager(HM)
47{ }
48
49//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
50
51void TrackingAction::PreUserTrackingAction(const G4Track* aTrack )
52{
53 // few initialisations
54 //
55 if (aTrack->GetTrackID() == 1) {
56 xstartAbs = detector->GetxstartAbs();
57 xendAbs = detector->GetxendAbs();
58 primaryCharge = aTrack->GetDefinition()->GetPDGCharge();
59 }
60}
61
62//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
63
64void TrackingAction::PostUserTrackingAction(const G4Track* aTrack)
65{
66 G4ThreeVector position = aTrack->GetPosition();
67 G4ThreeVector vertex = aTrack->GetVertexPosition();
68 G4double charge = aTrack->GetDefinition()->GetPDGCharge();
69
70 G4bool transmit = ((position.x() >= xendAbs) && (vertex.x() < xendAbs));
71 G4bool reflect = (position.x() <= xstartAbs);
72 G4bool notabsor = (transmit || reflect);
73
74 //transmitted + reflected particles counter
75 //
76 G4int flag = 0;
77 if (charge == primaryCharge) flag = 1;
78 if (aTrack->GetTrackID() == 1) flag = 2;
79 if (transmit) eventaction->SetTransmitFlag(flag);
80 if (reflect) eventaction->SetReflectFlag(flag);
81
82 //
83 //histograms
84 //
85 G4bool charged = (charge != 0.);
86 G4bool neutral = !charged;
87
88 //energy spectrum at exit
89 //
90 G4int id = 0;
91 if (transmit && charged) id = 10;
92 else if (transmit && neutral) id = 20;
93 else if (reflect && charged) id = 30;
94 else if (reflect && neutral) id = 40;
95
96 if (id>0)
97 histoManager->FillHisto(id, aTrack->GetKineticEnergy());
98
99 //energy leakage
100 //
101 if (notabsor) {
102 G4int trackID = aTrack->GetTrackID();
103 G4int index = 0; if (trackID > 1) index = 1; //primary=0, secondaries=1
104 G4double eleak = aTrack->GetKineticEnergy();
105 if ((aTrack->GetDefinition() == G4Positron::Positron()) && (trackID > 1))
106 eleak += 2*electron_mass_c2;
107 runaction->AddEnergyLeak(eleak,index);
108 }
109
110 //space angle distribution at exit : dN/dOmega
111 //
112 G4ThreeVector direction = aTrack->GetMomentumDirection();
113 id = 0;
114 if (transmit && charged) id = 12;
115 else if (transmit && neutral) id = 22;
116 else if (reflect && charged) id = 32;
117 else if (reflect && neutral) id = 42;
118
119 if (id>0) {
120 G4double theta = std::acos(direction.x());
121 G4double dteta = histoManager->GetBinWidth(id);
122 G4double unit = histoManager->GetHistoUnit(id);
123 G4double weight = (unit*unit)/(twopi*std::sin(theta)*dteta);
124 histoManager->FillHisto(id,theta,weight);
125 }
126
127 //energy fluence at exit : dE(MeV)/dOmega
128 //
129 id = 0;
130 if (transmit && charged) id = 11;
131 else if (transmit && neutral) id = 21;
132 else if (reflect && charged) id = 31;
133 else if (reflect && neutral) id = 41;
134
135 if (id>0) {
136 G4double theta = std::acos(direction.x());
137 G4double dteta = histoManager->GetBinWidth(id);
138 G4double unit = histoManager->GetHistoUnit(id);
139 G4double weight = (unit*unit)/(twopi*std::sin(theta)*dteta);
140 weight *= (aTrack->GetKineticEnergy()/MeV);
141 histoManager->FillHisto(id,theta,weight);
142 }
143
144 //projected angles distribution at exit
145 //
146 id = 0;
147 if (transmit && charged) id = 13;
148 else if (transmit && neutral) id = 23;
149 else if (reflect && charged) id = 33;
150 else if (reflect && neutral) id = 43;
151
152 if(id>0) {
153 G4double tet = std::atan(direction.y()/std::fabs(direction.x()));
154 histoManager->FillHisto(id,tet);
155 if (transmit && (flag == 2)) runaction->AddMscProjTheta(tet);
156
157 tet = std::atan(direction.z()/std::fabs(direction.x()));
158 histoManager->FillHisto(id,tet);
159 if (transmit && (flag == 2)) runaction->AddMscProjTheta(tet);
160 }
161
162 //projected position and radius at exit
163 //
164 id = 0;
165 if (transmit && charged) id = 14;
166
167 if (id>0) {
168 G4double y = position.y(), z = position.z();
169 G4double r = std::sqrt(y*y + z*z);
170 histoManager->FillHisto(id, y);
171 histoManager->FillHisto(id, z);
172 histoManager->FillHisto(id+1, r);
173 }
174
175 //x-vertex of charged secondaries
176 //
177 if ((aTrack->GetParentID() == 1) && charged) {
178 G4double xVertex = (aTrack->GetVertexPosition()).x();
179 histoManager->FillHisto(4, xVertex);
180 if (notabsor) histoManager->FillHisto(5, xVertex);
181 }
182}
183
184//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
185
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