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25 // 25 //
26 // 26 //
27 /// \file optical/wls/src/WLSSteppingAction.cc <<
28 /// \brief Implementation of the WLSSteppingAc <<
29 // 27 //
30 // <<
31 #include "WLSSteppingAction.hh" <<
32 28
>> 29 #include "G4Run.hh"
>> 30 #include "G4Step.hh"
>> 31 #include "G4Track.hh"
>> 32 #include "G4StepPoint.hh"
>> 33 #include "G4TrackStatus.hh"
>> 34 #include "G4VPhysicalVolume.hh"
>> 35 #include "G4ParticleDefinition.hh"
>> 36
>> 37 #include "WLSSteppingAction.hh"
33 #include "WLSDetectorConstruction.hh" 38 #include "WLSDetectorConstruction.hh"
34 #include "WLSEventAction.hh" <<
35 #include "WLSPhotonDetSD.hh" <<
36 #include "WLSSteppingActionMessenger.hh" 39 #include "WLSSteppingActionMessenger.hh"
>> 40 #include "WLSPhotonDetSD.hh"
>> 41
>> 42 #include "G4ParticleTypes.hh"
>> 43
37 #include "WLSUserTrackInformation.hh" 44 #include "WLSUserTrackInformation.hh"
38 45
39 #include "G4OpBoundaryProcess.hh" <<
40 #include "G4OpticalPhoton.hh" <<
41 #include "G4ProcessManager.hh" 46 #include "G4ProcessManager.hh"
42 #include "G4Run.hh" << 47 #include "G4OpBoundaryProcess.hh"
>> 48
>> 49 #include "G4RunManager.hh"
43 #include "G4SDManager.hh" 50 #include "G4SDManager.hh"
44 #include "G4Step.hh" <<
45 #include "G4StepPoint.hh" <<
46 #include "G4SystemOfUnits.hh" <<
47 #include "G4ThreeVector.hh" <<
48 #include "G4Track.hh" <<
49 #include "G4TrackStatus.hh" <<
50 #include "G4UImanager.hh" 51 #include "G4UImanager.hh"
51 #include "G4VPhysicalVolume.hh" << 52
>> 53 #include "G4ThreeVector.hh"
52 #include "G4ios.hh" 54 #include "G4ios.hh"
>> 55 #include <sstream>
53 56
54 // Purpose: Save relevant information into Use 57 // Purpose: Save relevant information into User Track Information
55 58
56 //....oooOO0OOooo........oooOO0OOooo........oo << 59 static const G4ThreeVector ZHat = G4ThreeVector(0.0,0.0,1.0);
57 60
58 WLSSteppingAction::WLSSteppingAction(WLSDetect << 61 G4int WLSSteppingAction::maxRndmSave = 10000;
59 : fDetector(detector), fEventAction(event) << 62
>> 63 WLSSteppingAction::WLSSteppingAction(WLSDetectorConstruction* DC)
>> 64 : detector(DC)
60 { 65 {
61 fSteppingMessenger = new WLSSteppingActionMe << 66 steppingMessenger = new WLSSteppingActionMessenger(this);
>> 67
>> 68 counterEnd = 0;
>> 69 counterMid = 0;
>> 70 bounceLimit = 100000;
>> 71
62 ResetCounters(); 72 ResetCounters();
63 } 73 }
64 74
65 //....oooOO0OOooo........oooOO0OOooo........oo <<
66 <<
67 WLSSteppingAction::~WLSSteppingAction() 75 WLSSteppingAction::~WLSSteppingAction()
68 { 76 {
69 delete fSteppingMessenger; << 77 delete steppingMessenger;
70 } 78 }
71 79
72 //....oooOO0OOooo........oooOO0OOooo........oo << 80 void WLSSteppingAction::SetBounceLimit(G4int i) {bounceLimit = i;}
73 << 81 G4int WLSSteppingAction::GetNumberOfBounces() {return counterBounce;}
74 void WLSSteppingAction::SetBounceLimit(G4int i << 82 G4int WLSSteppingAction::GetNumberOfClad1Bounces() {return counterClad1Bounce;}
75 { << 83 G4int WLSSteppingAction::GetNumberOfClad2Bounces() {return counterClad2Bounce;}
76 fBounceLimit = i; << 84 G4int WLSSteppingAction::GetNumberOfWLSBounces() {return counterWLSBounce;}
>> 85 G4int WLSSteppingAction::ResetSuccessCounter() {
>> 86 G4int temp = counterEnd; counterEnd = 0; return temp;
77 } 87 }
78 88
79 //....oooOO0OOooo........oooOO0OOooo........oo << 89 // save the random status into a sub-directory
>> 90 // Pre: subDir must be empty or ended with "/"
>> 91 inline void WLSSteppingAction::saveRandomStatus(G4String subDir) {
>> 92
>> 93 // don't save if the maximum amount has been reached
>> 94 if (WLSSteppingAction::maxRndmSave == 0) return;
80 95
81 G4int WLSSteppingAction::GetNumberOfBounces() << 96 G4RunManager* theRunManager = G4RunManager::GetRunManager();
82 { << 97 G4String randomNumberStatusDir = theRunManager->GetRandomNumberStoreDir();
83 return fCounterBounce; << 98
84 } << 99 G4String fileIn = randomNumberStatusDir + "currentEvent.rndm";
85 100
86 //....oooOO0OOooo........oooOO0OOooo........oo << 101 std::ostringstream os;
87 102
88 G4int WLSSteppingAction::GetNumberOfClad1Bounc << 103 os << "run" << theRunManager->GetCurrentRun()->GetRunID() << "evt"
89 { << 104 << theRunManager->GetCurrentEvent()->GetEventID() << ".rndm" << '\0';
90 return fCounterClad1Bounce; <<
91 } <<
92 <<
93 //....oooOO0OOooo........oooOO0OOooo........oo <<
94 105
95 G4int WLSSteppingAction::GetNumberOfClad2Bounc << 106 G4String fileOut = randomNumberStatusDir + subDir + os.str();
96 { <<
97 return fCounterClad2Bounce; <<
98 } <<
99 107
100 //....oooOO0OOooo........oooOO0OOooo........oo << 108 G4String copCmd = "/control/shell cp "+fileIn+" "+fileOut;
>> 109 G4UImanager::GetUIpointer()->ApplyCommand(copCmd);
101 110
102 G4int WLSSteppingAction::GetNumberOfWLSBounces << 111 WLSSteppingAction::maxRndmSave--;
103 { <<
104 return fCounterWLSBounce; <<
105 } 112 }
106 113
107 //....oooOO0OOooo........oooOO0OOooo........oo << 114 void WLSSteppingAction::UpdateHistogramSuccess(G4StepPoint* ,G4Track* ) {}
108 115
109 G4int WLSSteppingAction::ResetSuccessCounter() << 116 void WLSSteppingAction::UpdateHistogramReflect(G4StepPoint* ,G4Track* ) {}
110 { << 117
111 G4int temp = fCounterEnd; << 118 void WLSSteppingAction::UpdateHistogramEscape(G4StepPoint* , G4Track* ) {}
112 fCounterEnd = 0; <<
113 return temp; <<
114 } <<
115 119
116 //....oooOO0OOooo........oooOO0OOooo........oo << 120 void WLSSteppingAction::UpdateHistogramAbsorb(G4StepPoint* , G4Track* ) {}
117 121
118 void WLSSteppingAction::UserSteppingAction(con 122 void WLSSteppingAction::UserSteppingAction(const G4Step* theStep)
119 { 123 {
120 G4Track* theTrack = theStep->GetTrack(); 124 G4Track* theTrack = theStep->GetTrack();
121 auto trackInformation = (WLSUserTrackInforma << 125 WLSUserTrackInformation* trackInformation
122 << 126 = (WLSUserTrackInformation*)theTrack->GetUserInformation();
123 G4StepPoint* thePrePoint = theStep->GetPreSt << 127
>> 128 G4StepPoint* thePrePoint = theStep->GetPreStepPoint();
124 G4StepPoint* thePostPoint = theStep->GetPost 129 G4StepPoint* thePostPoint = theStep->GetPostStepPoint();
125 130
126 G4VPhysicalVolume* thePrePV = thePrePoint->G << 131 G4VPhysicalVolume* thePrePV = thePrePoint->GetPhysicalVolume();
127 G4VPhysicalVolume* thePostPV = thePostPoint- 132 G4VPhysicalVolume* thePostPV = thePostPoint->GetPhysicalVolume();
128 133
129 G4String thePrePVname = " "; << 134 G4String thePrePVname = " ";
130 G4String thePostPVname = " "; 135 G4String thePostPVname = " ";
131 136
132 if (thePostPV) { 137 if (thePostPV) {
133 thePrePVname = thePrePV->GetName(); << 138 thePrePVname = thePrePV->GetName();
134 thePostPVname = thePostPV->GetName(); << 139 thePostPVname = thePostPV->GetName();
135 } 140 }
136 141
137 // Recording data for start << 142 //Recording data for start
138 // static const G4ThreeVector ZHat = G4Three << 143 if (theTrack->GetParentID()==0) {
139 if (theTrack->GetParentID() == 0) { << 144 //This is a primary track
140 // This is a primary track << 145 if ( theTrack->GetCurrentStepNumber() == 1 ) {
141 if (theTrack->GetCurrentStepNumber() == 1) << 146 // G4double x = theTrack->GetVertexPosition().x();
142 // G4double x = theTrack->GetVer << 147 // G4double y = theTrack->GetVertexPosition().y();
143 // G4double y = theTrack->GetVer << 148 G4double z = theTrack->GetVertexPosition().z();
144 // G4double z = theTrack->GetVer << 149 // G4double pz = theTrack->GetVertexMomentumDirection().z();
145 // G4double pz = theTrack->GetVer << 150 initTheta = theTrack->GetVertexMomentumDirection().angle(ZHat);
146 // G4double fInitTheta = << 151 initZ = z;
147 // theTrack->Get << 152 }
148 } <<
149 } 153 }
150 154
151 // Retrieve the status of the photon 155 // Retrieve the status of the photon
152 G4OpBoundaryProcessStatus theStatus = Undefi 156 G4OpBoundaryProcessStatus theStatus = Undefined;
153 157
154 static G4ThreadLocal G4ProcessManager* OpMan << 158 G4ProcessManager* OpManager =
155 G4OpticalPhoton::OpticalPhoton()->GetProce << 159 G4OpticalPhoton::OpticalPhoton()->GetProcessManager();
156 160
157 if (OpManager) { 161 if (OpManager) {
158 G4int nproc = OpManager->GetPostStepProces << 162 G4int MAXofPostStepLoops =
159 G4ProcessVector* fPostStepDoItVector = OpM << 163 OpManager->GetPostStepProcessVector()->entries();
160 << 164 G4ProcessVector* fPostStepDoItVector =
161 for (G4int i = 0; i < nproc; ++i) { << 165 OpManager->GetPostStepProcessVector(typeDoIt);
162 G4VProcess* fCurrentProcess = (*fPostSte << 166
163 fOpProcess = dynamic_cast<G4OpBoundaryPr << 167 for ( G4int i=0; i<MAXofPostStepLoops; i++) {
164 if (fOpProcess) { << 168 G4VProcess* fCurrentProcess = (*fPostStepDoItVector)[i];
165 theStatus = fOpProcess->GetStatus(); << 169 opProcess = dynamic_cast<G4OpBoundaryProcess*>(fCurrentProcess);
166 break; << 170 if (opProcess) { theStatus = opProcess->GetStatus(); break;}
167 } << 171 }
168 } <<
169 } 172 }
170 173
171 // Find the skewness of the ray at first cha 174 // Find the skewness of the ray at first change of boundary
172 if (fInitGamma == -1 << 175 if ( initGamma == -1 &&
173 && (theStatus == TotalInternalReflection << 176 (theStatus == TotalInternalReflection
174 || theStatus == FresnelRefraction) << 177 || theStatus == FresnelReflection
175 && trackInformation->IsStatus(InsideOfFi << 178 || theStatus == FresnelRefraction)
176 { << 179 && trackInformation->isStatus(InsideOfFiber) ) {
177 G4double px = theTrack->GetVertexMomentumD <<
178 G4double py = theTrack->GetVertexMomentumD <<
179 G4double x = theTrack->GetPosition().x(); <<
180 G4double y = theTrack->GetPosition().y(); <<
181 180
182 fInitGamma = x * px + y * py; << 181 G4double px = theTrack->GetVertexMomentumDirection().x();
>> 182 G4double py = theTrack->GetVertexMomentumDirection().y();
>> 183 G4double x = theTrack->GetPosition().x();
>> 184 G4double y = theTrack->GetPosition().y();
183 185
184 fInitGamma = fInitGamma / std::sqrt(px * p << 186 initGamma = x * px + y * py;
185 187
186 fInitGamma = std::acos(fInitGamma * rad); << 188 initGamma = initGamma / std::sqrt(px*px + py*py) / std::sqrt(x*x + y*y);
187 189
188 if (fInitGamma / deg > 90.0) { << 190 initGamma = std::acos(initGamma*rad);
189 fInitGamma = 180 * deg - fInitGamma; << 191
190 } << 192 if ( initGamma / deg > 90.0) { initGamma = 180 * deg - initGamma;}
191 } 193 }
192 // Record Photons that missed the photon det 194 // Record Photons that missed the photon detector but escaped from readout
193 if (!thePostPV && trackInformation->IsStatus << 195 if ( !thePostPV && trackInformation->isStatus(EscapedFromReadOut) ) {
194 // G4cout << "SteppingAction: status = Esc << 196 // UpdateHistogramSuccess(thePostPoint,theTrack);
195 fEventAction->AddEscaped(); << 197 ResetCounters();
196 // UpdateHistogramSuccess(thePostPoint,the << 198
197 ResetCounters(); << 199 return;
198 <<
199 return; <<
200 } 200 }
201 201
202 // Assumed photons are originated at the fib 202 // Assumed photons are originated at the fiber OR
203 // the fiber is the first material the photo 203 // the fiber is the first material the photon hits
204 switch (theStatus) { 204 switch (theStatus) {
205 // Exiting the fiber << 205
206 case FresnelRefraction: << 206 // Exiting the fiber
207 case SameMaterial: << 207 case FresnelRefraction:
208 fEventAction->AddExiting(); << 208 case SameMaterial:
209 << 209
210 if (thePostPVname == "WLSFiber" || thePo << 210 G4bool isFiber;
211 if (trackInformation->IsStatus(Outside << 211 isFiber = thePostPVname == "WLSFiber"
212 trackInformation->AddStatusFlag(Insi << 212 || thePostPVname == "Clad1"
213 << 213 || thePostPVname == "Clad2";
214 // Set the Exit flag when the photon r << 214
215 } << 215 if ( isFiber ) {
216 else if (trackInformation->IsStatus(Insi << 216
217 // EscapedFromReadOut if the z positio << 217 if (trackInformation->isStatus(OutsideOfFiber))
218 if (theTrack->GetPosition().z() == fDe << 218 trackInformation->AddStatusFlag(InsideOfFiber);
219 trackInformation->AddStatusFlag(Esca << 219
220 fCounterEnd++; << 220 // Set the Exit flag when the photon refracted out of the fiber
221 fEventAction->AddEscapedEnd(); << 221 } else if (trackInformation->isStatus(InsideOfFiber)) {
222 } << 222
223 else // Escaped from side << 223 // EscapedFromReadOut if the z position is the same as fiber's end
224 { << 224 if (theTrack->GetPosition().z() == detector->GetWLSFiberEnd())
225 trackInformation->AddStatusFlag(Esca << 225 {
226 trackInformation->SetExitPosition(th << 226 trackInformation->AddStatusFlag(EscapedFromReadOut);
227 // UpdateHistogramEscape(thePostPoi << 227 counterEnd++;
>> 228 }
>> 229 else // Escaped from side
>> 230 {
>> 231 trackInformation->AddStatusFlag(EscapedFromSide);
>> 232 trackInformation->SetExitPosition(theTrack->GetPosition());
>> 233
>> 234 // UpdateHistogramEscape(thePostPoint,theTrack);
>> 235
>> 236 counterMid++;
>> 237 ResetCounters();
>> 238 }
>> 239
>> 240 trackInformation->AddStatusFlag(OutsideOfFiber);
>> 241 trackInformation->SetExitPosition(theTrack->GetPosition());
>> 242
>> 243 }
>> 244
>> 245 return;
>> 246
>> 247 // Internal Reflections
>> 248 case TotalInternalReflection:
>> 249
>> 250 // Kill the track if it's number of bounces exceeded the limit
>> 251 if (bounceLimit > 0 && counterBounce >= bounceLimit)
>> 252 {
>> 253 theTrack->SetTrackStatus(fStopAndKill);
>> 254 trackInformation->AddStatusFlag(murderee);
>> 255 ResetCounters();
>> 256 G4cout << "\n Bounce Limit Exceeded" << G4endl;
>> 257 return;
>> 258 }
>> 259
>> 260 case FresnelReflection:
>> 261
>> 262 counterBounce++;
>> 263
>> 264 if ( thePrePVname == "WLSFiber") counterWLSBounce++;
>> 265
>> 266 else if ( thePrePVname == "Clad1") counterClad1Bounce++;
>> 267
>> 268 else if ( thePrePVname == "Clad2") counterClad2Bounce++;
>> 269
>> 270 // Determine if the photon has reflected off the read-out end
>> 271 if (theTrack->GetPosition().z() == detector->GetWLSFiberEnd())
>> 272 {
>> 273 if (!trackInformation->isStatus(ReflectedAtReadOut) &&
>> 274 trackInformation->isStatus(InsideOfFiber))
>> 275 {
>> 276 trackInformation->AddStatusFlag(ReflectedAtReadOut);
>> 277
>> 278 if (detector->IsPerfectFiber() &&
>> 279 theStatus == TotalInternalReflection)
>> 280 {
>> 281 theTrack->SetTrackStatus(fStopAndKill);
>> 282 trackInformation->AddStatusFlag(murderee);
>> 283 // UpdateHistogramReflect(thePostPoint,theTrack);
>> 284 ResetCounters();
>> 285 return;
>> 286 }
>> 287 }
>> 288 }
>> 289 return;
>> 290
>> 291 // Reflection of the mirror
>> 292 case LambertianReflection:
>> 293 case LobeReflection:
>> 294 case SpikeReflection:
>> 295
>> 296 // Check if it hits the mirror
>> 297 if ( thePostPVname == "Mirror" )
>> 298 trackInformation->AddStatusFlag(ReflectedAtMirror);
>> 299
>> 300 return;
>> 301
>> 302 // Detected by a detector
>> 303 case Detection:
>> 304
>> 305 // Check if the photon hits the detector and process the hit if it does
>> 306 if ( thePostPVname == "PhotonDet" ) {
>> 307
>> 308 G4SDManager* SDman = G4SDManager::GetSDMpointer();
>> 309 G4String SDname="WLS/PhotonDet";
>> 310 WLSPhotonDetSD* mppcSD =
>> 311 (WLSPhotonDetSD*)SDman->FindSensitiveDetector(SDname);
>> 312
>> 313 if (mppcSD) mppcSD->ProcessHits_constStep(theStep,NULL);
>> 314
>> 315 // Record Photons that escaped at the end
>> 316 // if (trackInformation->isStatus(EscapedFromReadOut))
>> 317 // UpdateHistogramSuccess(thePostPoint,theTrack);
228 318
229 fCounterMid++; << 319 // Stop Tracking when it hits the detector's surface
230 fEventAction->AddEscapedMid(); <<
231 ResetCounters(); 320 ResetCounters();
232 } << 321 theTrack->SetTrackStatus(fStopAndKill);
233 322
234 trackInformation->AddStatusFlag(Outsid << 323 return;
235 trackInformation->SetExitPosition(theT << 324 }
236 } <<
237 <<
238 return; <<
239 <<
240 // Internal Reflections <<
241 case TotalInternalReflection: <<
242 <<
243 fEventAction->AddTIR(); <<
244 <<
245 // Kill the track if it's number of boun <<
246 if (fBounceLimit > 0 && fCounterBounce > <<
247 theTrack->SetTrackStatus(fStopAndKill) <<
248 trackInformation->AddStatusFlag(murder <<
249 ResetCounters(); <<
250 G4cout << "\n Bounce Limit Exceeded" < <<
251 return; <<
252 } <<
253 break; <<
254 <<
255 case FresnelReflection: <<
256 <<
257 fCounterBounce++; <<
258 fEventAction->AddBounce(); <<
259 <<
260 if (thePrePVname == "WLSFiber") { <<
261 fCounterWLSBounce++; <<
262 fEventAction->AddWLSBounce(); <<
263 } <<
264 else if (thePrePVname == "Clad1") { <<
265 fCounterClad1Bounce++; <<
266 fEventAction->AddClad1Bounce(); <<
267 } <<
268 else if (thePrePVname == "Clad2") { <<
269 fCounterClad2Bounce++; <<
270 fEventAction->AddClad1Bounce(); <<
271 } <<
272 <<
273 // Determine if the photon has reflected <<
274 if (theTrack->GetPosition().z() == fDete <<
275 if (!trackInformation->IsStatus(Reflec <<
276 && trackInformation->IsStatus(Insi <<
277 { <<
278 trackInformation->AddStatusFlag(Refl <<
279 <<
280 if (fDetector->IsPerfectFiber() && t <<
281 theTrack->SetTrackStatus(fStopAndK <<
282 trackInformation->AddStatusFlag(mu <<
283 // UpdateHistogramReflect(thePostP <<
284 ResetCounters(); <<
285 return; <<
286 } <<
287 } <<
288 } <<
289 return; <<
290 <<
291 // Reflection off the mirror <<
292 case LambertianReflection: <<
293 case LobeReflection: <<
294 case SpikeReflection: <<
295 <<
296 fEventAction->AddReflected(); <<
297 // Check if it hits the mirror <<
298 if (thePostPVname == "Mirror") { <<
299 trackInformation->AddStatusFlag(Reflec <<
300 fEventAction->AddMirror(); <<
301 } <<
302 return; <<
303 <<
304 // Detected by a detector <<
305 case Detection: <<
306 // Detected automatically with G4OpBound <<
307 <<
308 // Stop Tracking when it hits the detect <<
309 ResetCounters(); <<
310 theTrack->SetTrackStatus(fStopAndKill); <<
311 return; <<
312 325
313 default: << 326 break;
314 break; <<
315 } <<
316 327
>> 328 default: break;
>> 329
>> 330 }
>> 331
317 // Check for absorbed photons 332 // Check for absorbed photons
318 if (theTrack->GetTrackStatus() != fAlive && << 333 if (theTrack->GetTrackStatus() != fAlive &&
319 // UpdateHistogramAbsorb(thePostPoint,theT << 334 trackInformation->isStatus(InsideOfFiber))
320 ResetCounters(); << 335 {
321 return; << 336 // UpdateHistogramAbsorb(thePostPoint,theTrack);
>> 337 ResetCounters();
>> 338 return;
322 } 339 }
>> 340
323 } 341 }
324 342