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25 // 25 //
26 /// \file electromagnetic/TestEm15/src/Steppin 26 /// \file electromagnetic/TestEm15/src/SteppingAction.cc
27 /// \brief Implementation of the SteppingActio 27 /// \brief Implementation of the SteppingAction class
28 // 28 //
29 // << 29 //
30 //....oooOO0OOooo........oooOO0OOooo........oo 30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oo 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 32
33 #include "SteppingAction.hh" 33 #include "SteppingAction.hh"
34 <<
35 #include "DetectorConstruction.hh" 34 #include "DetectorConstruction.hh"
36 #include "HistoManager.hh" <<
37 #include "RunAction.hh" 35 #include "RunAction.hh"
38 << 36 #include "HistoManager.hh"
39 #include "G4ParticleTypes.hh" 37 #include "G4ParticleTypes.hh"
>> 38
40 #include "G4RunManager.hh" 39 #include "G4RunManager.hh"
41 40
42 #include <G4RotationMatrix.hh> <<
43 #include <G4ThreeVector.hh> 41 #include <G4ThreeVector.hh>
>> 42 #include <G4RotationMatrix.hh>
44 43
45 //....oooOO0OOooo........oooOO0OOooo........oo 44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
46 45
47 SteppingAction::SteppingAction(DetectorConstru << 46 SteppingAction::SteppingAction(DetectorConstruction* det,
48 : G4UserSteppingAction(), fDetector(det), fR << 47 RunAction* RuAct)
49 {} << 48 :G4UserSteppingAction(),fDetector(det), fRunAction(RuAct)
>> 49 { }
50 50
51 //....oooOO0OOooo........oooOO0OOooo........oo 51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
52 52
53 SteppingAction::~SteppingAction() {} << 53 SteppingAction::~SteppingAction()
>> 54 { }
54 55
55 //....oooOO0OOooo........oooOO0OOooo........oo 56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
56 57
57 void SteppingAction::UserSteppingAction(const 58 void SteppingAction::UserSteppingAction(const G4Step* aStep)
58 { 59 {
59 G4StepPoint* prePoint = aStep->GetPreStepPoi 60 G4StepPoint* prePoint = aStep->GetPreStepPoint();
60 << 61
61 // if World --> return 62 // if World --> return
62 if (prePoint->GetTouchableHandle()->GetVolum << 63 if(prePoint->GetTouchableHandle()->GetVolume()==fDetector->GetWorld()) return;
63 << 64
64 // here we enter in the absorber Box 65 // here we enter in the absorber Box
65 // tag the event to be killed anyway after t 66 // tag the event to be killed anyway after this step
66 // 67 //
67 G4RunManager::GetRunManager()->AbortEvent(); 68 G4RunManager::GetRunManager()->AbortEvent();
68 << 69
69 // count processes and keep only Multiple Sc << 70 //count processes and keep only Multiple Scattering or gamma converion
70 // << 71 //
71 G4StepPoint* endPoint = aStep->GetPostStepPo 72 G4StepPoint* endPoint = aStep->GetPostStepPoint();
72 G4String procName = endPoint->GetProcessDefi 73 G4String procName = endPoint->GetProcessDefinedStep()->GetProcessName();
73 fRunAction->CountProcesses(procName); 74 fRunAction->CountProcesses(procName);
74 << 75
75 if (procName == "msc" || procName == "muMsc" 76 if (procName == "msc" || procName == "muMsc" || procName == "stepMax") {
76 // below, only multiple Scattering happens << 77
>> 78 //below, only multiple Scattering happens
77 // 79 //
78 G4ThreeVector position = endPoint->GetPosi << 80 G4ThreeVector position = endPoint->GetPosition();
79 G4ThreeVector direction = endPoint->GetMom 81 G4ThreeVector direction = endPoint->GetMomentumDirection();
80 << 82
81 G4double truePathLength = aStep->GetStepLe << 83 G4double truePathLength = aStep->GetStepLength();
82 G4double geomPathLength = position.x() + 0 << 84 G4double geomPathLength = position.x() + 0.5*fDetector->GetBoxSize();
83 G4double ratio = geomPathLength / truePath << 85 G4double ratio = geomPathLength/truePathLength;
84 fRunAction->SumPathLength(truePathLength, << 86 fRunAction->SumPathLength(truePathLength,geomPathLength);
85 G4AnalysisManager* analysisManager = G4Ana << 87 G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
86 analysisManager->FillH1(1, truePathLength) << 88 analysisManager->FillH1(1,truePathLength);
87 analysisManager->FillH1(2, geomPathLength) << 89 analysisManager->FillH1(2,geomPathLength);
88 analysisManager->FillH1(3, ratio); << 90 analysisManager->FillH1(3,ratio);
89 << 91
90 G4double yend = position.y(), zend = posit 92 G4double yend = position.y(), zend = position.z();
91 G4double lateralDisplacement = std::sqrt(y << 93 G4double lateralDisplacement = std::sqrt(yend*yend + zend*zend);
92 fRunAction->SumLateralDisplacement(lateral 94 fRunAction->SumLateralDisplacement(lateralDisplacement);
93 analysisManager->FillH1(4, lateralDisplace << 95 analysisManager->FillH1(4,lateralDisplacement);
94 << 96
95 G4double psi = std::atan(lateralDisplaceme << 97 G4double psi = std::atan(lateralDisplacement/geomPathLength);
96 fRunAction->SumPsi(psi); 98 fRunAction->SumPsi(psi);
97 analysisManager->FillH1(5, psi); << 99 analysisManager->FillH1(5,psi);
98 << 100
99 G4double xdir = direction.x(), ydir = dire << 101 G4double xdir = direction.x(), ydir = direction.y(), zdir = direction.z();
100 G4double tetaPlane = std::atan2(ydir, xdir << 102 G4double tetaPlane = std::atan2(ydir, xdir);
101 fRunAction->SumTetaPlane(tetaPlane); 103 fRunAction->SumTetaPlane(tetaPlane);
102 analysisManager->FillH1(6, tetaPlane); << 104 analysisManager->FillH1(6,tetaPlane);
103 tetaPlane = std::atan2(zdir, xdir); << 105 tetaPlane = std::atan2(zdir, xdir);
104 fRunAction->SumTetaPlane(tetaPlane); 106 fRunAction->SumTetaPlane(tetaPlane);
105 analysisManager->FillH1(6, tetaPlane); << 107 analysisManager->FillH1(6,tetaPlane);
106 << 108
107 G4double phiPos = std::atan2(zend, yend); << 109 G4double phiPos = std::atan2(zend, yend);
108 analysisManager->FillH1(7, phiPos); << 110 analysisManager->FillH1(7,phiPos);
109 G4double phiDir = std::atan2(zdir, ydir); << 111 G4double phiDir = std::atan2(zdir, ydir);
110 analysisManager->FillH1(8, phiDir); << 112 analysisManager->FillH1(8,phiDir);
111 113
112 G4double phiCorrel = 0.; 114 G4double phiCorrel = 0.;
113 if (lateralDisplacement > 0.) phiCorrel = << 115 if (lateralDisplacement > 0.)
>> 116 phiCorrel = (yend*ydir + zend*zdir)/lateralDisplacement;
114 fRunAction->SumPhiCorrel(phiCorrel); 117 fRunAction->SumPhiCorrel(phiCorrel);
115 analysisManager->FillH1(9, phiCorrel); << 118 analysisManager->FillH1(9,phiCorrel);
116 } << 119 } else if (procName == "conv" || procName == "GammaToMuPair" ) {
117 else if (procName == "conv" || procName == " <<
118 // gamma conversion <<
119 120
>> 121 // gamma conversion
>> 122
120 G4StepPoint* PrePoint = aStep->GetPreStepP 123 G4StepPoint* PrePoint = aStep->GetPreStepPoint();
121 G4double EGamma = PrePoint->GetTotalEnergy << 124 G4double EGamma = PrePoint->GetTotalEnergy();
122 G4ThreeVector PGamma = PrePoint->GetMoment << 125 G4ThreeVector PGamma = PrePoint->GetMomentum();
123 G4ThreeVector PolaGamma = PrePoint->GetPol << 126 G4ThreeVector PolaGamma = PrePoint->GetPolarization();
124 127
125 G4double Eplus = -1; << 128 G4double Eplus=-1;
126 G4ThreeVector Pplus, Pminus, Precoil; 129 G4ThreeVector Pplus, Pminus, Precoil;
127 130
128 const G4TrackVector* secondary = fpSteppin 131 const G4TrackVector* secondary = fpSteppingManager->GetSecondary();
129 132
130 const size_t Nsecondaries = (*secondary).s 133 const size_t Nsecondaries = (*secondary).size();
131 134
132 // No conversion , E < threshold << 135 //No conversion , E < threshold
133 if (Nsecondaries == 0) return; 136 if (Nsecondaries == 0) return;
134 << 137
135 for (size_t lp = 0; lp < std::min(Nseconda << 138 for (size_t lp=0; lp< std::min(Nsecondaries,size_t(2) ); lp++) {
136 if (((*secondary)[lp]->GetDefinition() = << 139 if (((*secondary)[lp]->GetDefinition()==G4Electron::Definition())
137 || ((*secondary)[lp]->GetDefinition( << 140 || ((*secondary)[lp]->GetDefinition()==G4MuonMinus::Definition()) )
138 { << 141 {
139 Pminus = (*secondary)[lp]->GetMomentum << 142 Pminus = (*secondary)[lp]->GetMomentum();
140 } << 143 }
141 if (((*secondary)[lp]->GetDefinition() = << 144 if (((*secondary)[lp]->GetDefinition()==G4Positron::Definition())
142 || ((*secondary)[lp]->GetDefinition( << 145 || ((*secondary)[lp]->GetDefinition()==G4MuonPlus::Definition()) )
143 { << 146 {
144 Eplus = (*secondary)[lp]->GetTotalEner << 147 Eplus = (*secondary)[lp]->GetTotalEnergy();
145 Pplus = (*secondary)[lp]->GetMomentum( << 148 Pplus = (*secondary)[lp]->GetMomentum();
146 } << 149 }
147 } 150 }
148 151
149 if (Nsecondaries >= 3) { << 152 if ( Nsecondaries >= 3 ) {
150 Precoil = (*secondary)[2]->GetMomentum() << 153 Precoil = (*secondary)[2]->GetMomentum();
151 } 154 }
152 155
153 G4AnalysisManager* analysisManager = G4Ana 156 G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
154 << 157
155 // Fill Histograms 158 // Fill Histograms
156 << 159
157 G4ThreeVector z = PGamma.unit(); // gamma << 160 G4ThreeVector z = PGamma.unit(); // gamma direction
158 G4ThreeVector x(1., 0., 0.); << 161 G4ThreeVector x(1.,0.,0.);
159 << 162
160 // pola perpendicular to direction 163 // pola perpendicular to direction
161 164
162 if (PolaGamma.mag() != 0.0) { << 165 if ( PolaGamma.mag() != 0.0 ) {
163 x = PolaGamma.unit(); 166 x = PolaGamma.unit();
164 } << 167 } else { // Pola = 0 case
165 else { // Pola = 0 case <<
166 x = z.orthogonal().unit(); 168 x = z.orthogonal().unit();
167 } 169 }
168 170
169 G4ThreeVector y = z; 171 G4ThreeVector y = z;
170 y = y.cross(x); 172 y = y.cross(x);
171 173
172 G4RotationMatrix GtoW(x, y, z); // from << 174 G4RotationMatrix GtoW(x,y,z); // from gamma ref. sys. to World
173 G4RotationMatrix WtoG = inverseOf(GtoW); << 175 G4RotationMatrix WtoG = inverseOf(GtoW); // from World to gamma ref. sys.
174 176
175 G4double angleE = Pplus.angle(Pminus) * EG <<
176 analysisManager->FillH1(10, angleE); <<
177 177
178 if (Nsecondaries >= 3) { << 178 G4double angleE = Pplus.angle(Pminus) * EGamma;
>> 179 analysisManager->FillH1(10,angleE);
>> 180
>> 181 if ( Nsecondaries >= 3 ) {
179 // recoil returned 182 // recoil returned
180 analysisManager->FillH1(11, std::log10(P << 183 analysisManager->FillH1(11,std::log10(Precoil.mag()));
181 analysisManager->FillH1(12, Precoil.tran << 184 analysisManager->FillH1(12,Precoil.transform(WtoG).phi());
182 } 185 }
183 G4double phiPlus = Pplus.transform(WtoG).p << 186 G4double phiPlus = Pplus.transform(WtoG).phi();
184 G4double phiMinus = Pminus.transform(WtoG) << 187 G4double phiMinus = Pminus.transform(WtoG).phi();
185 analysisManager->FillH1(13, phiPlus); << 188 analysisManager->FillH1(13,phiPlus);
186 analysisManager->FillH1(14, std::cos(phiPl << 189 analysisManager->FillH1(14,std::cos(phiPlus + phiMinus) * -2.0);
187 analysisManager->FillH1(15, Eplus / EGamma << 190 analysisManager->FillH1(15,Eplus/EGamma);
188 << 191
189 G4double phiPola = PolaGamma.transform(Wto << 192 G4double phiPola = PolaGamma.transform(WtoG).phi();
190 analysisManager->FillH1(16, phiPola); 193 analysisManager->FillH1(16, phiPola);
191 } 194 }
192 } 195 }
193 196
194 //....oooOO0OOooo........oooOO0OOooo........oo 197 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
195 198