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25 // 25 //
26 // <<
27 /// \file optical/wls/src/WLSSteppingAction.cc 26 /// \file optical/wls/src/WLSSteppingAction.cc
28 /// \brief Implementation of the WLSSteppingAc 27 /// \brief Implementation of the WLSSteppingAction class
29 // 28 //
30 // 29 //
31 #include "WLSSteppingAction.hh" << 30 //
32 31
>> 32 #include "G4Run.hh"
>> 33 #include "G4Step.hh"
>> 34 #include "G4Track.hh"
>> 35 #include "G4StepPoint.hh"
>> 36 #include "G4TrackStatus.hh"
>> 37 #include "G4VPhysicalVolume.hh"
>> 38 #include "G4ParticleDefinition.hh"
>> 39
>> 40 #include "WLSSteppingAction.hh"
33 #include "WLSDetectorConstruction.hh" 41 #include "WLSDetectorConstruction.hh"
34 #include "WLSEventAction.hh" <<
35 #include "WLSPhotonDetSD.hh" <<
36 #include "WLSSteppingActionMessenger.hh" 42 #include "WLSSteppingActionMessenger.hh"
>> 43 #include "WLSPhotonDetSD.hh"
>> 44
>> 45 #include "G4ParticleTypes.hh"
>> 46
37 #include "WLSUserTrackInformation.hh" 47 #include "WLSUserTrackInformation.hh"
38 48
39 #include "G4OpBoundaryProcess.hh" <<
40 #include "G4OpticalPhoton.hh" <<
41 #include "G4ProcessManager.hh" 49 #include "G4ProcessManager.hh"
42 #include "G4Run.hh" << 50 #include "G4OpBoundaryProcess.hh"
>> 51
>> 52 #include "G4RunManager.hh"
43 #include "G4SDManager.hh" 53 #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" 54 #include "G4UImanager.hh"
51 #include "G4VPhysicalVolume.hh" << 55
>> 56 #include "G4ThreeVector.hh"
52 #include "G4ios.hh" 57 #include "G4ios.hh"
>> 58 #include "G4SystemOfUnits.hh"
>> 59 #include <sstream>
53 60
54 // Purpose: Save relevant information into Use 61 // Purpose: Save relevant information into User Track Information
55 62
56 //....oooOO0OOooo........oooOO0OOooo........oo << 63 static const G4ThreeVector ZHat = G4ThreeVector(0.0,0.0,1.0);
57 64
58 WLSSteppingAction::WLSSteppingAction(WLSDetect << 65 G4int WLSSteppingAction::maxRndmSave = 10000;
59 : fDetector(detector), fEventAction(event) << 66
>> 67 WLSSteppingAction::WLSSteppingAction(WLSDetectorConstruction* DC)
>> 68 : detector(DC)
60 { 69 {
61 fSteppingMessenger = new WLSSteppingActionMe << 70 steppingMessenger = new WLSSteppingActionMessenger(this);
>> 71
>> 72 counterEnd = 0;
>> 73 counterMid = 0;
>> 74 bounceLimit = 100000;
>> 75
62 ResetCounters(); 76 ResetCounters();
63 } 77 }
64 78
65 //....oooOO0OOooo........oooOO0OOooo........oo <<
66 <<
67 WLSSteppingAction::~WLSSteppingAction() 79 WLSSteppingAction::~WLSSteppingAction()
68 { 80 {
69 delete fSteppingMessenger; << 81 delete steppingMessenger;
70 } 82 }
71 83
72 //....oooOO0OOooo........oooOO0OOooo........oo << 84 void WLSSteppingAction::SetBounceLimit(G4int i) {bounceLimit = i;}
73 << 85 G4int WLSSteppingAction::GetNumberOfBounces() {return counterBounce;}
74 void WLSSteppingAction::SetBounceLimit(G4int i << 86 G4int WLSSteppingAction::GetNumberOfClad1Bounces() {return counterClad1Bounce;}
75 { << 87 G4int WLSSteppingAction::GetNumberOfClad2Bounces() {return counterClad2Bounce;}
76 fBounceLimit = i; << 88 G4int WLSSteppingAction::GetNumberOfWLSBounces() {return counterWLSBounce;}
>> 89 G4int WLSSteppingAction::ResetSuccessCounter() {
>> 90 G4int temp = counterEnd; counterEnd = 0; return temp;
77 } 91 }
78 92
79 //....oooOO0OOooo........oooOO0OOooo........oo << 93 // save the random status into a sub-directory
>> 94 // Pre: subDir must be empty or ended with "/"
>> 95 inline void WLSSteppingAction::saveRandomStatus(G4String subDir) {
>> 96
>> 97 // don't save if the maximum amount has been reached
>> 98 if (WLSSteppingAction::maxRndmSave == 0) return;
80 99
81 G4int WLSSteppingAction::GetNumberOfBounces() << 100 G4RunManager* theRunManager = G4RunManager::GetRunManager();
82 { << 101 G4String randomNumberStatusDir = theRunManager->GetRandomNumberStoreDir();
83 return fCounterBounce; << 102
84 } << 103 G4String fileIn = randomNumberStatusDir + "currentEvent.rndm";
85 104
86 //....oooOO0OOooo........oooOO0OOooo........oo << 105 std::ostringstream os;
87 106
88 G4int WLSSteppingAction::GetNumberOfClad1Bounc << 107 os << "run" << theRunManager->GetCurrentRun()->GetRunID() << "evt"
89 { << 108 << theRunManager->GetCurrentEvent()->GetEventID() << ".rndm" << '\0';
90 return fCounterClad1Bounce; <<
91 } <<
92 <<
93 //....oooOO0OOooo........oooOO0OOooo........oo <<
94 109
95 G4int WLSSteppingAction::GetNumberOfClad2Bounc << 110 G4String fileOut = randomNumberStatusDir + subDir + os.str();
96 { <<
97 return fCounterClad2Bounce; <<
98 } <<
99 111
100 //....oooOO0OOooo........oooOO0OOooo........oo << 112 G4String copCmd = "/control/shell cp "+fileIn+" "+fileOut;
>> 113 G4UImanager::GetUIpointer()->ApplyCommand(copCmd);
101 114
102 G4int WLSSteppingAction::GetNumberOfWLSBounces << 115 WLSSteppingAction::maxRndmSave--;
103 { <<
104 return fCounterWLSBounce; <<
105 } 116 }
106 117
107 //....oooOO0OOooo........oooOO0OOooo........oo << 118 void WLSSteppingAction::UpdateHistogramSuccess(G4StepPoint* ,G4Track* ) {}
108 119
109 G4int WLSSteppingAction::ResetSuccessCounter() << 120 void WLSSteppingAction::UpdateHistogramReflect(G4StepPoint* ,G4Track* ) {}
110 { <<
111 G4int temp = fCounterEnd; <<
112 fCounterEnd = 0; <<
113 return temp; <<
114 } <<
115 121
116 //....oooOO0OOooo........oooOO0OOooo........oo << 122 void WLSSteppingAction::UpdateHistogramEscape(G4StepPoint* , G4Track* ) {}
>> 123
>> 124 void WLSSteppingAction::UpdateHistogramAbsorb(G4StepPoint* , G4Track* ) {}
117 125
118 void WLSSteppingAction::UserSteppingAction(con 126 void WLSSteppingAction::UserSteppingAction(const G4Step* theStep)
119 { 127 {
120 G4Track* theTrack = theStep->GetTrack(); 128 G4Track* theTrack = theStep->GetTrack();
121 auto trackInformation = (WLSUserTrackInforma << 129 WLSUserTrackInformation* trackInformation
122 << 130 = (WLSUserTrackInformation*)theTrack->GetUserInformation();
123 G4StepPoint* thePrePoint = theStep->GetPreSt << 131
>> 132 G4StepPoint* thePrePoint = theStep->GetPreStepPoint();
124 G4StepPoint* thePostPoint = theStep->GetPost 133 G4StepPoint* thePostPoint = theStep->GetPostStepPoint();
125 134
126 G4VPhysicalVolume* thePrePV = thePrePoint->G << 135 G4VPhysicalVolume* thePrePV = thePrePoint->GetPhysicalVolume();
127 G4VPhysicalVolume* thePostPV = thePostPoint- 136 G4VPhysicalVolume* thePostPV = thePostPoint->GetPhysicalVolume();
128 137
129 G4String thePrePVname = " "; << 138 G4String thePrePVname = " ";
130 G4String thePostPVname = " "; 139 G4String thePostPVname = " ";
131 140
132 if (thePostPV) { 141 if (thePostPV) {
133 thePrePVname = thePrePV->GetName(); << 142 thePrePVname = thePrePV->GetName();
134 thePostPVname = thePostPV->GetName(); << 143 thePostPVname = thePostPV->GetName();
135 } 144 }
136 145
137 // Recording data for start << 146 //Recording data for start
138 // static const G4ThreeVector ZHat = G4Three << 147 if (theTrack->GetParentID()==0) {
139 if (theTrack->GetParentID() == 0) { << 148 //This is a primary track
140 // This is a primary track << 149 if ( theTrack->GetCurrentStepNumber() == 1 ) {
141 if (theTrack->GetCurrentStepNumber() == 1) << 150 // G4double x = theTrack->GetVertexPosition().x();
142 // G4double x = theTrack->GetVer << 151 // G4double y = theTrack->GetVertexPosition().y();
143 // G4double y = theTrack->GetVer << 152 G4double z = theTrack->GetVertexPosition().z();
144 // G4double z = theTrack->GetVer << 153 // G4double pz = theTrack->GetVertexMomentumDirection().z();
145 // G4double pz = theTrack->GetVer << 154 initTheta = theTrack->GetVertexMomentumDirection().angle(ZHat);
146 // G4double fInitTheta = << 155 initZ = z;
147 // theTrack->Get << 156 }
148 } <<
149 } 157 }
150 158
151 // Retrieve the status of the photon 159 // Retrieve the status of the photon
152 G4OpBoundaryProcessStatus theStatus = Undefi 160 G4OpBoundaryProcessStatus theStatus = Undefined;
153 161
154 static G4ThreadLocal G4ProcessManager* OpMan << 162 G4ProcessManager* OpManager =
155 G4OpticalPhoton::OpticalPhoton()->GetProce << 163 G4OpticalPhoton::OpticalPhoton()->GetProcessManager();
156 164
157 if (OpManager) { 165 if (OpManager) {
158 G4int nproc = OpManager->GetPostStepProces << 166 G4int MAXofPostStepLoops =
159 G4ProcessVector* fPostStepDoItVector = OpM << 167 OpManager->GetPostStepProcessVector()->entries();
160 << 168 G4ProcessVector* fPostStepDoItVector =
161 for (G4int i = 0; i < nproc; ++i) { << 169 OpManager->GetPostStepProcessVector(typeDoIt);
162 G4VProcess* fCurrentProcess = (*fPostSte << 170
163 fOpProcess = dynamic_cast<G4OpBoundaryPr << 171 for ( G4int i=0; i<MAXofPostStepLoops; i++) {
164 if (fOpProcess) { << 172 G4VProcess* fCurrentProcess = (*fPostStepDoItVector)[i];
165 theStatus = fOpProcess->GetStatus(); << 173 opProcess = dynamic_cast<G4OpBoundaryProcess*>(fCurrentProcess);
166 break; << 174 if (opProcess) { theStatus = opProcess->GetStatus(); break;}
167 } << 175 }
168 } <<
169 } 176 }
170 177
171 // Find the skewness of the ray at first cha 178 // Find the skewness of the ray at first change of boundary
172 if (fInitGamma == -1 << 179 if ( initGamma == -1 &&
173 && (theStatus == TotalInternalReflection << 180 (theStatus == TotalInternalReflection
174 || theStatus == FresnelRefraction) << 181 || theStatus == FresnelReflection
175 && trackInformation->IsStatus(InsideOfFi << 182 || theStatus == FresnelRefraction)
176 { << 183 && 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(); <<
181 184
182 fInitGamma = x * px + y * py; << 185 G4double px = theTrack->GetVertexMomentumDirection().x();
>> 186 G4double py = theTrack->GetVertexMomentumDirection().y();
>> 187 G4double x = theTrack->GetPosition().x();
>> 188 G4double y = theTrack->GetPosition().y();
183 189
184 fInitGamma = fInitGamma / std::sqrt(px * p << 190 initGamma = x * px + y * py;
185 191
186 fInitGamma = std::acos(fInitGamma * rad); << 192 initGamma = initGamma / std::sqrt(px*px + py*py) / std::sqrt(x*x + y*y);
187 193
188 if (fInitGamma / deg > 90.0) { << 194 initGamma = std::acos(initGamma*rad);
189 fInitGamma = 180 * deg - fInitGamma; << 195
190 } << 196 if ( initGamma / deg > 90.0) { initGamma = 180 * deg - initGamma;}
191 } 197 }
192 // Record Photons that missed the photon det 198 // Record Photons that missed the photon detector but escaped from readout
193 if (!thePostPV && trackInformation->IsStatus << 199 if ( !thePostPV && trackInformation->isStatus(EscapedFromReadOut) ) {
194 // G4cout << "SteppingAction: status = Esc << 200 // UpdateHistogramSuccess(thePostPoint,theTrack);
195 fEventAction->AddEscaped(); << 201 ResetCounters();
196 // UpdateHistogramSuccess(thePostPoint,the << 202
197 ResetCounters(); << 203 return;
198 <<
199 return; <<
200 } 204 }
201 205
202 // Assumed photons are originated at the fib 206 // Assumed photons are originated at the fiber OR
203 // the fiber is the first material the photo 207 // the fiber is the first material the photon hits
204 switch (theStatus) { 208 switch (theStatus) {
205 // Exiting the fiber << 209
206 case FresnelRefraction: << 210 // Exiting the fiber
207 case SameMaterial: << 211 case FresnelRefraction:
208 fEventAction->AddExiting(); << 212 case SameMaterial:
209 << 213
210 if (thePostPVname == "WLSFiber" || thePo << 214 G4bool isFiber;
211 if (trackInformation->IsStatus(Outside << 215 isFiber = thePostPVname == "WLSFiber"
212 trackInformation->AddStatusFlag(Insi << 216 || thePostPVname == "Clad1"
213 << 217 || thePostPVname == "Clad2";
214 // Set the Exit flag when the photon r << 218
215 } << 219 if ( isFiber ) {
216 else if (trackInformation->IsStatus(Insi << 220
217 // EscapedFromReadOut if the z positio << 221 if (trackInformation->isStatus(OutsideOfFiber))
218 if (theTrack->GetPosition().z() == fDe << 222 trackInformation->AddStatusFlag(InsideOfFiber);
219 trackInformation->AddStatusFlag(Esca << 223
220 fCounterEnd++; << 224 // Set the Exit flag when the photon refracted out of the fiber
221 fEventAction->AddEscapedEnd(); << 225 } else if (trackInformation->isStatus(InsideOfFiber)) {
222 } << 226
223 else // Escaped from side << 227 // EscapedFromReadOut if the z position is the same as fiber's end
224 { << 228 if (theTrack->GetPosition().z() == detector->GetWLSFiberEnd())
225 trackInformation->AddStatusFlag(Esca << 229 {
226 trackInformation->SetExitPosition(th << 230 trackInformation->AddStatusFlag(EscapedFromReadOut);
227 // UpdateHistogramEscape(thePostPoi << 231 counterEnd++;
>> 232 }
>> 233 else // Escaped from side
>> 234 {
>> 235 trackInformation->AddStatusFlag(EscapedFromSide);
>> 236 trackInformation->SetExitPosition(theTrack->GetPosition());
>> 237
>> 238 // UpdateHistogramEscape(thePostPoint,theTrack);
>> 239
>> 240 counterMid++;
>> 241 ResetCounters();
>> 242 }
>> 243
>> 244 trackInformation->AddStatusFlag(OutsideOfFiber);
>> 245 trackInformation->SetExitPosition(theTrack->GetPosition());
>> 246
>> 247 }
>> 248
>> 249 return;
>> 250
>> 251 // Internal Reflections
>> 252 case TotalInternalReflection:
>> 253
>> 254 // Kill the track if it's number of bounces exceeded the limit
>> 255 if (bounceLimit > 0 && counterBounce >= bounceLimit)
>> 256 {
>> 257 theTrack->SetTrackStatus(fStopAndKill);
>> 258 trackInformation->AddStatusFlag(murderee);
>> 259 ResetCounters();
>> 260 G4cout << "\n Bounce Limit Exceeded" << G4endl;
>> 261 return;
>> 262 }
>> 263
>> 264 case FresnelReflection:
>> 265
>> 266 counterBounce++;
>> 267
>> 268 if ( thePrePVname == "WLSFiber") counterWLSBounce++;
>> 269
>> 270 else if ( thePrePVname == "Clad1") counterClad1Bounce++;
>> 271
>> 272 else if ( thePrePVname == "Clad2") counterClad2Bounce++;
>> 273
>> 274 // Determine if the photon has reflected off the read-out end
>> 275 if (theTrack->GetPosition().z() == detector->GetWLSFiberEnd())
>> 276 {
>> 277 if (!trackInformation->isStatus(ReflectedAtReadOut) &&
>> 278 trackInformation->isStatus(InsideOfFiber))
>> 279 {
>> 280 trackInformation->AddStatusFlag(ReflectedAtReadOut);
>> 281
>> 282 if (detector->IsPerfectFiber() &&
>> 283 theStatus == TotalInternalReflection)
>> 284 {
>> 285 theTrack->SetTrackStatus(fStopAndKill);
>> 286 trackInformation->AddStatusFlag(murderee);
>> 287 // UpdateHistogramReflect(thePostPoint,theTrack);
>> 288 ResetCounters();
>> 289 return;
>> 290 }
>> 291 }
>> 292 }
>> 293 return;
>> 294
>> 295 // Reflection of the mirror
>> 296 case LambertianReflection:
>> 297 case LobeReflection:
>> 298 case SpikeReflection:
>> 299
>> 300 // Check if it hits the mirror
>> 301 if ( thePostPVname == "Mirror" )
>> 302 trackInformation->AddStatusFlag(ReflectedAtMirror);
>> 303
>> 304 return;
>> 305
>> 306 // Detected by a detector
>> 307 case Detection:
>> 308
>> 309 // Check if the photon hits the detector and process the hit if it does
>> 310 if ( thePostPVname == "PhotonDet" ) {
>> 311
>> 312 G4SDManager* SDman = G4SDManager::GetSDMpointer();
>> 313 G4String SDname="WLS/PhotonDet";
>> 314 WLSPhotonDetSD* mppcSD =
>> 315 (WLSPhotonDetSD*)SDman->FindSensitiveDetector(SDname);
>> 316
>> 317 if (mppcSD) mppcSD->ProcessHits_constStep(theStep,NULL);
>> 318
>> 319 // Record Photons that escaped at the end
>> 320 // if (trackInformation->isStatus(EscapedFromReadOut))
>> 321 // UpdateHistogramSuccess(thePostPoint,theTrack);
228 322
229 fCounterMid++; << 323 // Stop Tracking when it hits the detector's surface
230 fEventAction->AddEscapedMid(); <<
231 ResetCounters(); 324 ResetCounters();
232 } << 325 theTrack->SetTrackStatus(fStopAndKill);
233 326
234 trackInformation->AddStatusFlag(Outsid << 327 return;
235 trackInformation->SetExitPosition(theT << 328 }
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; <<
312 329
313 default: << 330 break;
314 break; <<
315 } <<
316 331
>> 332 default: break;
>> 333
>> 334 }
>> 335
317 // Check for absorbed photons 336 // Check for absorbed photons
318 if (theTrack->GetTrackStatus() != fAlive && << 337 if (theTrack->GetTrackStatus() != fAlive &&
319 // UpdateHistogramAbsorb(thePostPoint,theT << 338 trackInformation->isStatus(InsideOfFiber))
320 ResetCounters(); << 339 {
321 return; << 340 // UpdateHistogramAbsorb(thePostPoint,theTrack);
>> 341 ResetCounters();
>> 342 return;
322 } 343 }
>> 344
323 } 345 }
324 346