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26 ////////////////////////////////////////////// 1 ////////////////////////////////////////////////////////////////////////
27 // Optical Photon Boundary Process Class Imple 2 // Optical Photon Boundary Process Class Implementation
28 ////////////////////////////////////////////// 3 ////////////////////////////////////////////////////////////////////////
29 // 4 //
30 // File: G4OpBoundaryProcess.cc 5 // File: G4OpBoundaryProcess.cc
31 // Description: Discrete Process -- reflection 6 // Description: Discrete Process -- reflection/refraction at
32 // optical in 7 // optical interfaces
33 // Version: 1.1 8 // Version: 1.1
34 // Created: 1997-06-18 9 // Created: 1997-06-18
35 // Modified: 1998-05-25 - Correct parallel 10 // Modified: 1998-05-25 - Correct parallel component of polarization
36 // (thanks to: Stefa 11 // (thanks to: Stefano Magni + Giovanni Pieri)
37 // 1998-05-28 - NULL Rindex point 12 // 1998-05-28 - NULL Rindex pointer before reuse
38 // (thanks to: Stefa 13 // (thanks to: Stefano Magni)
39 // 1998-06-11 - delete *sint1 in 14 // 1998-06-11 - delete *sint1 in oblique reflection
40 // (thanks to: Giova 15 // (thanks to: Giovanni Pieri)
41 // 1998-06-19 - move from GetLoca << 16 // 1998-06-19 - move from GetLocalExitNormal() to the new
42 // method: GetLocalE 17 // method: GetLocalExitNormal(&valid) to get
43 // the surface norma 18 // the surface normal in all cases
44 // 1998-11-07 - NULL OpticalSurfa 19 // 1998-11-07 - NULL OpticalSurface pointer before use
45 // comparison not sh << 20 // comparison not sharp for: abs(cost1) < 1.0
46 // remove sin1, sin2 21 // remove sin1, sin2 in lines 556,567
47 // (thanks to Stefan 22 // (thanks to Stefano Magni)
48 // 1999-10-10 - Accommodate chang 23 // 1999-10-10 - Accommodate changes done in DoAbsorption by
49 // changing logic in 24 // changing logic in DielectricMetal
50 // 2001-10-18 - avoid Linux (gcc- <<
51 // might be used uni <<
52 // moved E2_perp, E2 <<
53 // 2003-11-27 - Modified line 168 <<
54 // G4OpticalSurface <<
55 // 2004-02-02 - Set theStatus = U <<
56 // 2005-07-28 - add G4ProcessType <<
57 // 2006-11-04 - add capability of <<
58 // off a metal surfa <<
59 // of refraction - T <<
60 // Hauptman (Dept. o <<
61 // 2009-11-10 - add capability of <<
62 // with Look-Up-Tabl <<
63 // optical reflectan <<
64 // treatments - Than <<
65 // William Moses (La <<
66 // 2013-06-01 - add the capabilit <<
67 // of a dichronic fi <<
68 // 2017-02-24 - add capability of <<
69 // with Look-Up-Tabl <<
70 // 25 //
71 // Author: Peter Gumplinger 26 // Author: Peter Gumplinger
72 // adopted from work by Werner Keil - April 27 // adopted from work by Werner Keil - April 2/96
>> 28 // mail: gum@triumf.ca
73 // 29 //
74 ////////////////////////////////////////////// 30 ////////////////////////////////////////////////////////////////////////
75 31
76 #include "G4OpBoundaryProcess.hh" <<
77 <<
78 #include "G4ios.hh" 32 #include "G4ios.hh"
79 #include "G4GeometryTolerance.hh" << 33 #include "G4OpBoundaryProcess.hh"
80 #include "G4LogicalBorderSurface.hh" <<
81 #include "G4LogicalSkinSurface.hh" <<
82 #include "G4OpProcessSubType.hh" <<
83 #include "G4OpticalParameters.hh" <<
84 #include "G4ParallelWorldProcess.hh" <<
85 #include "G4PhysicalConstants.hh" <<
86 #include "G4SystemOfUnits.hh" <<
87 #include "G4TransportationManager.hh" <<
88 #include "G4VSensitiveDetector.hh" <<
89 <<
90 //....oooOO0OOooo........oooOO0OOooo........oo <<
91 G4OpBoundaryProcess::G4OpBoundaryProcess(const <<
92 G4Pro <<
93 : G4VDiscreteProcess(processName, ptype) <<
94 { <<
95 Initialise(); <<
96 <<
97 if(verboseLevel > 0) <<
98 { <<
99 G4cout << GetProcessName() << " is created <<
100 } <<
101 SetProcessSubType(fOpBoundary); <<
102 <<
103 fStatus = Undefined; <<
104 fModel = glisur; <<
105 fFinish = polished; <<
106 fReflectivity = 1.; <<
107 fEfficiency = 0.; <<
108 fTransmittance = 0.; <<
109 fSurfaceRoughness = 0.; <<
110 fProb_sl = 0.; <<
111 fProb_ss = 0.; <<
112 fProb_bs = 0.; <<
113 <<
114 fRealRIndexMPV = nullptr; <<
115 fImagRIndexMPV = nullptr; <<
116 fMaterial1 = nullptr; <<
117 fMaterial2 = nullptr; <<
118 fOpticalSurface = nullptr; <<
119 fCarTolerance = G4GeometryTolerance::GetIn <<
120 <<
121 f_iTE = f_iTM = 0; <<
122 fPhotonMomentum = 0.; <<
123 fRindex1 = fRindex2 = 1.; <<
124 fSint1 = 0.; <<
125 fDichroicVector = nullptr; <<
126 } <<
127 <<
128 //....oooOO0OOooo........oooOO0OOooo........oo <<
129 G4OpBoundaryProcess::~G4OpBoundaryProcess() = <<
130 <<
131 //....oooOO0OOooo........oooOO0OOooo........oo <<
132 void G4OpBoundaryProcess::PreparePhysicsTable( <<
133 { <<
134 Initialise(); <<
135 } <<
136 <<
137 //....oooOO0OOooo........oooOO0OOooo........oo <<
138 void G4OpBoundaryProcess::Initialise() <<
139 { <<
140 G4OpticalParameters* params = G4OpticalParam <<
141 SetInvokeSD(params->GetBoundaryInvokeSD()); <<
142 SetVerboseLevel(params->GetBoundaryVerboseLe <<
143 } <<
144 <<
145 //....oooOO0OOooo........oooOO0OOooo........oo <<
146 G4VParticleChange* G4OpBoundaryProcess::PostSt <<
147 <<
148 { <<
149 fStatus = Undefined; <<
150 aParticleChange.Initialize(aTrack); <<
151 aParticleChange.ProposeVelocity(aTrack.GetVe <<
152 <<
153 // Get hyperStep from G4ParallelWorldProces <<
154 // NOTE: PostSetpDoIt of this process to be <<
155 // G4ParallelWorldProcess! <<
156 const G4Step* pStep = &aStep; <<
157 const G4Step* hStep = G4ParallelWorldProcess <<
158 if(hStep != nullptr) <<
159 pStep = hStep; <<
160 <<
161 if(pStep->GetPostStepPoint()->GetStepStatus( <<
162 { <<
163 fMaterial1 = pStep->GetPreStepPoint()->Get <<
164 fMaterial2 = pStep->GetPostStepPoint()->Ge <<
165 } <<
166 else <<
167 { <<
168 fStatus = NotAtBoundary; <<
169 if(verboseLevel > 1) <<
170 BoundaryProcessVerbose(); <<
171 return G4VDiscreteProcess::PostStepDoIt(aT <<
172 } <<
173 <<
174 G4VPhysicalVolume* thePrePV = pStep->GetPre <<
175 G4VPhysicalVolume* thePostPV = pStep->GetPos <<
176 <<
177 if(verboseLevel > 1) <<
178 { <<
179 G4cout << " Photon at Boundary! " << G4end <<
180 if(thePrePV != nullptr) <<
181 G4cout << " thePrePV: " << thePrePV->Ge <<
182 if(thePostPV != nullptr) <<
183 G4cout << " thePostPV: " << thePostPV->G <<
184 } <<
185 <<
186 G4double stepLength = aTrack.GetStepLength() <<
187 if(stepLength <= fCarTolerance) <<
188 { <<
189 fStatus = StepTooSmall; <<
190 if(verboseLevel > 1) <<
191 BoundaryProcessVerbose(); <<
192 <<
193 G4MaterialPropertyVector* groupvel = nullp <<
194 G4MaterialPropertiesTable* aMPT = fMateria <<
195 if(aMPT != nullptr) <<
196 { <<
197 groupvel = aMPT->GetProperty(kGROUPVEL); <<
198 } <<
199 <<
200 if(groupvel != nullptr) <<
201 { <<
202 aParticleChange.ProposeVelocity( <<
203 groupvel->Value(fPhotonMomentum, idx_g <<
204 } <<
205 return G4VDiscreteProcess::PostStepDoIt(aT <<
206 } <<
207 else if (stepLength <= 10.*fCarTolerance && <<
208 { // see bug 2510 <<
209 ++fNumSmallStepWarnings; <<
210 if(verboseLevel > 0) <<
211 { <<
212 G4ExceptionDescription ed; <<
213 ed << "G4OpBoundaryProcess: " <<
214 << "Opticalphoton step length: " << s <<
215 << "This is larger than the threshold <<
216 "to set status StepTooSmall." << G <<
217 << "Boundary scattering may be incorr <<
218 if(fNumSmallStepWarnings == 10) <<
219 { <<
220 ed << G4endl << "*** Step size warning <<
221 } <<
222 G4Exception("G4OpBoundaryProcess", "OpBo <<
223 } <<
224 } <<
225 <<
226 const G4DynamicParticle* aParticle = aTrack. <<
227 <<
228 fPhotonMomentum = aParticle->GetTotalMoment <<
229 fOldMomentum = aParticle->GetMomentumDir <<
230 fOldPolarization = aParticle->GetPolarizatio <<
231 <<
232 if(verboseLevel > 1) <<
233 { <<
234 G4cout << " Old Momentum Direction: " << f <<
235 << " Old Polarization: " << f <<
236 } <<
237 <<
238 G4ThreeVector theGlobalPoint = pStep->GetPos <<
239 G4bool valid; <<
240 <<
241 // ID of Navigator which limits step <<
242 G4int hNavId = G4ParallelWorldProcess::GetHy <<
243 auto iNav = G4TransportationManager::GetT <<
244 ->GetActiveNavigatorsIterator( <<
245 fGlobalNormal = (iNav[hNavId])->GetGlobalExi <<
246 <<
247 if(valid) <<
248 { <<
249 fGlobalNormal = -fGlobalNormal; <<
250 } <<
251 else <<
252 { <<
253 G4ExceptionDescription ed; <<
254 ed << " G4OpBoundaryProcess/PostStepDoIt() <<
255 << " The Navigator reports that it retu <<
256 G4Exception( <<
257 "G4OpBoundaryProcess::PostStepDoIt", "Op <<
258 "Invalid Surface Normal - Geometry must <<
259 } <<
260 <<
261 if(fOldMomentum * fGlobalNormal > 0.0) <<
262 { <<
263 #ifdef G4OPTICAL_DEBUG <<
264 G4ExceptionDescription ed; <<
265 ed << " G4OpBoundaryProcess/PostStepDoIt() <<
266 "wrong direction. " <<
267 << G4endl <<
268 << " The momentum of the photon arriv <<
269 << " must exit the volume cross in th <<
270 << " So it MUST have dot < 0 with the <<
271 "volume (globalNormal)." <<
272 << G4endl << " >> The dot product of <<
273 << fOldMomentum * fGlobalNormal << G4en <<
274 << " Old Momentum (during step) <<
275 << " Global Normal (Exiting New Vol <<
276 << G4endl; <<
277 G4Exception("G4OpBoundaryProcess::PostStep <<
278 EventMustBeAborted, // Or Jus <<
279 // repeat <<
280 ed, <<
281 "Invalid Surface Normal - Geom <<
282 "normal pointing in the right <<
283 #else <<
284 fGlobalNormal = -fGlobalNormal; <<
285 #endif <<
286 } <<
287 <<
288 G4MaterialPropertyVector* rIndexMPV = nullpt <<
289 G4MaterialPropertiesTable* MPT = fMaterial1- <<
290 if(MPT != nullptr) <<
291 { <<
292 rIndexMPV = MPT->GetProperty(kRINDEX); <<
293 } <<
294 if(rIndexMPV != nullptr) <<
295 { <<
296 fRindex1 = rIndexMPV->Value(fPhotonMomentu <<
297 } <<
298 else <<
299 { <<
300 fStatus = NoRINDEX; <<
301 if(verboseLevel > 1) <<
302 BoundaryProcessVerbose(); <<
303 aParticleChange.ProposeLocalEnergyDeposit( <<
304 aParticleChange.ProposeTrackStatus(fStopAn <<
305 return G4VDiscreteProcess::PostStepDoIt(aT <<
306 } <<
307 <<
308 fReflectivity = 1.; <<
309 fEfficiency = 0.; <<
310 fTransmittance = 0.; <<
311 fSurfaceRoughness = 0.; <<
312 fModel = glisur; <<
313 fFinish = polished; <<
314 G4SurfaceType type = dielectric_dielectric; <<
315 <<
316 rIndexMPV = nullptr; <<
317 fOpticalSurface = nullptr; <<
318 <<
319 G4LogicalSurface* surface = <<
320 G4LogicalBorderSurface::GetSurface(thePreP <<
321 if(surface == nullptr) <<
322 { <<
323 if(thePostPV->GetMotherLogical() == thePre <<
324 { <<
325 surface = G4LogicalSkinSurface::GetSurfa <<
326 if(surface == nullptr) <<
327 { <<
328 surface = <<
329 G4LogicalSkinSurface::GetSurface(the <<
330 } <<
331 } <<
332 else <<
333 { <<
334 surface = G4LogicalSkinSurface::GetSurfa <<
335 if(surface == nullptr) <<
336 { <<
337 surface = <<
338 G4LogicalSkinSurface::GetSurface(the <<
339 } <<
340 } <<
341 } <<
342 <<
343 if(surface != nullptr) <<
344 { <<
345 fOpticalSurface = <<
346 dynamic_cast<G4OpticalSurface*>(surface- <<
347 } <<
348 if(fOpticalSurface != nullptr) <<
349 { <<
350 type = fOpticalSurface->GetType(); <<
351 fModel = fOpticalSurface->GetModel(); <<
352 fFinish = fOpticalSurface->GetFinish(); <<
353 <<
354 G4MaterialPropertiesTable* sMPT = <<
355 fOpticalSurface->GetMaterialPropertiesTa <<
356 if(sMPT != nullptr) <<
357 { <<
358 if(fFinish == polishedbackpainted || fFi <<
359 { <<
360 rIndexMPV = sMPT->GetProperty(kRINDEX) <<
361 if(rIndexMPV != nullptr) <<
362 { <<
363 fRindex2 = rIndexMPV->Value(fPhotonM <<
364 } <<
365 else <<
366 { <<
367 fStatus = NoRINDEX; <<
368 if(verboseLevel > 1) <<
369 BoundaryProcessVerbose(); <<
370 aParticleChange.ProposeLocalEnergyDe <<
371 aParticleChange.ProposeTrackStatus(f <<
372 return G4VDiscreteProcess::PostStepD <<
373 } <<
374 } <<
375 34
376 fRealRIndexMPV = sMPT->GetProperty(kREAL << 35 /////////////////////////
377 fImagRIndexMPV = sMPT->GetProperty(kIMAG << 36 // Class Implementation
378 f_iTE = f_iTM = 1; << 37 /////////////////////////
379 <<
380 G4MaterialPropertyVector* pp; <<
381 if((pp = sMPT->GetProperty(kREFLECTIVITY <<
382 { <<
383 fReflectivity = pp->Value(fPhotonMomen <<
384 } <<
385 else if(fRealRIndexMPV && fImagRIndexMPV <<
386 { <<
387 CalculateReflectivity(); <<
388 } <<
389 <<
390 if((pp = sMPT->GetProperty(kEFFICIENCY)) <<
391 { <<
392 fEfficiency = pp->Value(fPhotonMomentu <<
393 } <<
394 if((pp = sMPT->GetProperty(kTRANSMITTANC <<
395 { <<
396 fTransmittance = pp->Value(fPhotonMome <<
397 } <<
398 if(sMPT->ConstPropertyExists(kSURFACEROU <<
399 { <<
400 fSurfaceRoughness = sMPT->GetConstProp <<
401 } <<
402 <<
403 if(fModel == unified) <<
404 { <<
405 fProb_sl = (pp = sMPT->GetProperty(kSP <<
406 ? pp->Value(fPhotonMoment <<
407 : 0.; <<
408 fProb_ss = (pp = sMPT->GetProperty(kSP <<
409 ? pp->Value(fPhotonMoment <<
410 : 0.; <<
411 fProb_bs = (pp = sMPT->GetProperty(kBA <<
412 ? pp->Value(fPhotonMoment <<
413 : 0.; <<
414 } <<
415 } // end of if(sMPT) <<
416 else if(fFinish == polishedbackpainted || <<
417 { <<
418 aParticleChange.ProposeLocalEnergyDeposi <<
419 aParticleChange.ProposeTrackStatus(fStop <<
420 return G4VDiscreteProcess::PostStepDoIt( <<
421 } <<
422 } // end of if(fOpticalSurface) <<
423 <<
424 // DIELECTRIC-DIELECTRIC <<
425 if(type == dielectric_dielectric) <<
426 { <<
427 if(fFinish == polished || fFinish == groun <<
428 { <<
429 if(fMaterial1 == fMaterial2) <<
430 { <<
431 fStatus = SameMaterial; <<
432 if(verboseLevel > 1) <<
433 BoundaryProcessVerbose(); <<
434 return G4VDiscreteProcess::PostStepDoI <<
435 } <<
436 MPT = fMaterial2->GetMaterialPrope <<
437 rIndexMPV = nullptr; <<
438 if(MPT != nullptr) <<
439 { <<
440 rIndexMPV = MPT->GetProperty(kRINDEX); <<
441 } <<
442 if(rIndexMPV != nullptr) <<
443 { <<
444 fRindex2 = rIndexMPV->Value(fPhotonMom <<
445 } <<
446 else <<
447 { <<
448 fStatus = NoRINDEX; <<
449 if(verboseLevel > 1) <<
450 BoundaryProcessVerbose(); <<
451 aParticleChange.ProposeLocalEnergyDepo <<
452 aParticleChange.ProposeTrackStatus(fSt <<
453 return G4VDiscreteProcess::PostStepDoI <<
454 } <<
455 } <<
456 if(fFinish == polishedbackpainted || fFini <<
457 { <<
458 DielectricDielectric(); <<
459 } <<
460 else <<
461 { <<
462 G4double rand = G4UniformRand(); <<
463 if(rand > fReflectivity + fTransmittance <<
464 { <<
465 DoAbsorption(); <<
466 } <<
467 else if(rand > fReflectivity) <<
468 { <<
469 fStatus = Transmission; <<
470 fNewMomentum = fOldMomentum; <<
471 fNewPolarization = fOldPolarization; <<
472 } <<
473 else <<
474 { <<
475 if(fFinish == polishedfrontpainted) <<
476 { <<
477 DoReflection(); <<
478 } <<
479 else if(fFinish == groundfrontpainted) <<
480 { <<
481 fStatus = LambertianReflection; <<
482 DoReflection(); <<
483 } <<
484 else <<
485 { <<
486 DielectricDielectric(); <<
487 } <<
488 } <<
489 } <<
490 } <<
491 else if(type == dielectric_metal) <<
492 { <<
493 DielectricMetal(); <<
494 } <<
495 else if(type == dielectric_LUT) <<
496 { <<
497 DielectricLUT(); <<
498 } <<
499 else if(type == dielectric_LUTDAVIS) <<
500 { <<
501 DielectricLUTDAVIS(); <<
502 } <<
503 else if(type == dielectric_dichroic) <<
504 { <<
505 DielectricDichroic(); <<
506 } <<
507 else if(type == coated) <<
508 { <<
509 CoatedDielectricDielectric(); <<
510 } <<
511 else <<
512 { <<
513 if(fNumBdryTypeWarnings <= 10) <<
514 { <<
515 ++fNumBdryTypeWarnings; <<
516 if(verboseLevel > 0) <<
517 { <<
518 G4ExceptionDescription ed; <<
519 ed << " PostStepDoIt(): Illegal bounda <<
520 if(fNumBdryTypeWarnings == 10) <<
521 { <<
522 ed << "** Boundary type warnings sto <<
523 } <<
524 G4Exception("G4OpBoundaryProcess", "Op <<
525 } <<
526 } <<
527 return G4VDiscreteProcess::PostStepDoIt(aT <<
528 } <<
529 <<
530 fNewMomentum = fNewMomentum.unit(); <<
531 fNewPolarization = fNewPolarization.unit(); <<
532 <<
533 if(verboseLevel > 1) <<
534 { <<
535 G4cout << " New Momentum Direction: " << f <<
536 << " New Polarization: " << f <<
537 BoundaryProcessVerbose(); <<
538 } <<
539 <<
540 aParticleChange.ProposeMomentumDirection(fNe <<
541 aParticleChange.ProposePolarization(fNewPola <<
542 <<
543 if(fStatus == FresnelRefraction || fStatus = <<
544 { <<
545 // not all surface types check that fMater <<
546 G4MaterialPropertiesTable* aMPT = fMateria <<
547 G4MaterialPropertyVector* groupvel = nullp <<
548 if(aMPT != nullptr) <<
549 { <<
550 groupvel = aMPT->GetProperty(kGROUPVEL); <<
551 } <<
552 if(groupvel != nullptr) <<
553 { <<
554 aParticleChange.ProposeVelocity( <<
555 groupvel->Value(fPhotonMomentum, idx_g <<
556 } <<
557 } <<
558 <<
559 if(fStatus == Detection && fInvokeSD) <<
560 InvokeSD(pStep); <<
561 return G4VDiscreteProcess::PostStepDoIt(aTra <<
562 } <<
563 38
564 //....oooOO0OOooo........oooOO0OOooo........oo << 39 //////////////
565 void G4OpBoundaryProcess::BoundaryProcessVerbo << 40 // Operators
566 { << 41 //////////////
567 G4cout << " *** "; <<
568 if(fStatus == Undefined) <<
569 G4cout << "Undefined"; <<
570 else if(fStatus == Transmission) <<
571 G4cout << "Transmission"; <<
572 else if(fStatus == FresnelRefraction) <<
573 G4cout << "FresnelRefraction"; <<
574 else if(fStatus == FresnelReflection) <<
575 G4cout << "FresnelReflection"; <<
576 else if(fStatus == TotalInternalReflection) <<
577 G4cout << "TotalInternalReflection"; <<
578 else if(fStatus == LambertianReflection) <<
579 G4cout << "LambertianReflection"; <<
580 else if(fStatus == LobeReflection) <<
581 G4cout << "LobeReflection"; <<
582 else if(fStatus == SpikeReflection) <<
583 G4cout << "SpikeReflection"; <<
584 else if(fStatus == BackScattering) <<
585 G4cout << "BackScattering"; <<
586 else if(fStatus == PolishedLumirrorAirReflec <<
587 G4cout << "PolishedLumirrorAirReflection"; <<
588 else if(fStatus == PolishedLumirrorGlueRefle <<
589 G4cout << "PolishedLumirrorGlueReflection" <<
590 else if(fStatus == PolishedAirReflection) <<
591 G4cout << "PolishedAirReflection"; <<
592 else if(fStatus == PolishedTeflonAirReflecti <<
593 G4cout << "PolishedTeflonAirReflection"; <<
594 else if(fStatus == PolishedTiOAirReflection) <<
595 G4cout << "PolishedTiOAirReflection"; <<
596 else if(fStatus == PolishedTyvekAirReflectio <<
597 G4cout << "PolishedTyvekAirReflection"; <<
598 else if(fStatus == PolishedVM2000AirReflecti <<
599 G4cout << "PolishedVM2000AirReflection"; <<
600 else if(fStatus == PolishedVM2000GlueReflect <<
601 G4cout << "PolishedVM2000GlueReflection"; <<
602 else if(fStatus == EtchedLumirrorAirReflecti <<
603 G4cout << "EtchedLumirrorAirReflection"; <<
604 else if(fStatus == EtchedLumirrorGlueReflect <<
605 G4cout << "EtchedLumirrorGlueReflection"; <<
606 else if(fStatus == EtchedAirReflection) <<
607 G4cout << "EtchedAirReflection"; <<
608 else if(fStatus == EtchedTeflonAirReflection <<
609 G4cout << "EtchedTeflonAirReflection"; <<
610 else if(fStatus == EtchedTiOAirReflection) <<
611 G4cout << "EtchedTiOAirReflection"; <<
612 else if(fStatus == EtchedTyvekAirReflection) <<
613 G4cout << "EtchedTyvekAirReflection"; <<
614 else if(fStatus == EtchedVM2000AirReflection <<
615 G4cout << "EtchedVM2000AirReflection"; <<
616 else if(fStatus == EtchedVM2000GlueReflectio <<
617 G4cout << "EtchedVM2000GlueReflection"; <<
618 else if(fStatus == GroundLumirrorAirReflecti <<
619 G4cout << "GroundLumirrorAirReflection"; <<
620 else if(fStatus == GroundLumirrorGlueReflect <<
621 G4cout << "GroundLumirrorGlueReflection"; <<
622 else if(fStatus == GroundAirReflection) <<
623 G4cout << "GroundAirReflection"; <<
624 else if(fStatus == GroundTeflonAirReflection <<
625 G4cout << "GroundTeflonAirReflection"; <<
626 else if(fStatus == GroundTiOAirReflection) <<
627 G4cout << "GroundTiOAirReflection"; <<
628 else if(fStatus == GroundTyvekAirReflection) <<
629 G4cout << "GroundTyvekAirReflection"; <<
630 else if(fStatus == GroundVM2000AirReflection <<
631 G4cout << "GroundVM2000AirReflection"; <<
632 else if(fStatus == GroundVM2000GlueReflectio <<
633 G4cout << "GroundVM2000GlueReflection"; <<
634 else if(fStatus == Absorption) <<
635 G4cout << "Absorption"; <<
636 else if(fStatus == Detection) <<
637 G4cout << "Detection"; <<
638 else if(fStatus == NotAtBoundary) <<
639 G4cout << "NotAtBoundary"; <<
640 else if(fStatus == SameMaterial) <<
641 G4cout << "SameMaterial"; <<
642 else if(fStatus == StepTooSmall) <<
643 G4cout << "StepTooSmall"; <<
644 else if(fStatus == NoRINDEX) <<
645 G4cout << "NoRINDEX"; <<
646 else if(fStatus == Dichroic) <<
647 G4cout << "Dichroic Transmission"; <<
648 else if(fStatus == CoatedDielectricReflectio <<
649 G4cout << "Coated Dielectric Reflection"; <<
650 else if(fStatus == CoatedDielectricRefractio <<
651 G4cout << "Coated Dielectric Refraction"; <<
652 else if(fStatus == CoatedDielectricFrustrate <<
653 G4cout << "Coated Dielectric Frustrated Tr <<
654 42
655 G4cout << " ***" << G4endl; << 43 // G4OpBoundaryProcess::operator=(const G4OpBoundaryProcess &right)
656 } << 44 // {
>> 45 // }
657 46
658 //....oooOO0OOooo........oooOO0OOooo........oo << 47 /////////////////
659 G4ThreeVector G4OpBoundaryProcess::GetFacetNor << 48 // Constructors
660 const G4ThreeVector& momentum, const G4Three << 49 /////////////////
661 { <<
662 G4ThreeVector facetNormal; <<
663 if(fModel == unified || fModel == LUT || fMo <<
664 { <<
665 /* This function codes alpha to a random v <<
666 distribution p(alpha) = g(alpha; 0, sigma_ <<
667 for alpha > 0 and alpha < 90, where g(alph <<
668 gaussian distribution with mean 0 and stan <<
669 <<
670 G4double sigma_alpha = 0.0; <<
671 if(fOpticalSurface) <<
672 sigma_alpha = fOpticalSurface->GetSigmaA <<
673 if(sigma_alpha == 0.0) <<
674 { <<
675 return normal; <<
676 } <<
677 <<
678 G4double f_max = std::min(1.0, 4. * sigma_ <<
679 G4double alpha, phi, sinAlpha; <<
680 <<
681 do <<
682 { // Loop checking, 13-Aug-2015, Peter Gu <<
683 do <<
684 { // Loop checking, 13-Aug-2015, Peter <<
685 alpha = G4RandGauss::shoot(0.0, sig <<
686 sinAlpha = std::sin(alpha); <<
687 } while(G4UniformRand() * f_max > sinAlp <<
688 <<
689 phi = G4UniformRand() * twopi; <<
690 facetNormal.set(sinAlpha * std::cos(phi) <<
691 std::cos(alpha)); <<
692 facetNormal.rotateUz(normal); <<
693 } while(momentum * facetNormal >= 0.0); <<
694 } <<
695 else <<
696 { <<
697 G4double polish = 1.0; <<
698 if(fOpticalSurface) <<
699 polish = fOpticalSurface->GetPolish(); <<
700 if(polish < 1.0) <<
701 { <<
702 do <<
703 { // Loop checking, 13-Aug-2015, Peter <<
704 G4ThreeVector smear; <<
705 do <<
706 { // Loop checking, 13-Aug-2015, Pete <<
707 smear.setX(2. * G4UniformRand() - 1. <<
708 smear.setY(2. * G4UniformRand() - 1. <<
709 smear.setZ(2. * G4UniformRand() - 1. <<
710 } while(smear.mag2() > 1.0); <<
711 facetNormal = normal + (1. - polish) * <<
712 } while(momentum * facetNormal >= 0.0); <<
713 facetNormal = facetNormal.unit(); <<
714 } <<
715 else <<
716 { <<
717 facetNormal = normal; <<
718 } <<
719 } <<
720 return facetNormal; <<
721 } <<
722 50
723 //....oooOO0OOooo........oooOO0OOooo........oo << 51 G4OpBoundaryProcess::G4OpBoundaryProcess(const G4String& processName)
724 void G4OpBoundaryProcess::DielectricMetal() << 52 : G4VDiscreteProcess(processName)
725 { 53 {
726 G4int n = 0; << 54 if ( verboseLevel > 0) {
727 G4double rand; << 55 G4cout << GetProcessName() << " is created " << endl;
728 G4ThreeVector A_trans; <<
729 <<
730 do <<
731 { <<
732 ++n; <<
733 rand = G4UniformRand(); <<
734 if(rand > fReflectivity && n == 1) <<
735 { <<
736 if(rand > fReflectivity + fTransmittance <<
737 { <<
738 DoAbsorption(); <<
739 } <<
740 else <<
741 { <<
742 fStatus = Transmission; <<
743 fNewMomentum = fOldMomentum; <<
744 fNewPolarization = fOldPolarization; <<
745 } <<
746 break; <<
747 } <<
748 else <<
749 { <<
750 if(fRealRIndexMPV && fImagRIndexMPV) <<
751 { <<
752 if(n > 1) <<
753 { <<
754 CalculateReflectivity(); <<
755 if(!G4BooleanRand(fReflectivity)) <<
756 { <<
757 DoAbsorption(); <<
758 break; <<
759 } <<
760 } <<
761 } <<
762 if(fModel == glisur || fFinish == polish <<
763 { <<
764 DoReflection(); <<
765 } <<
766 else <<
767 { <<
768 if(n == 1) <<
769 ChooseReflection(); <<
770 if(fStatus == LambertianReflection) <<
771 { <<
772 DoReflection(); <<
773 } 56 }
774 else if(fStatus == BackScattering) <<
775 { <<
776 fNewMomentum = -fOldMomentum; <<
777 fNewPolarization = -fOldPolarization <<
778 } <<
779 else <<
780 { <<
781 if(fStatus == LobeReflection) <<
782 { <<
783 if(!fRealRIndexMPV || !fImagRIndex <<
784 { <<
785 fFacetNormal = GetFacetNormal(fO <<
786 } <<
787 // else <<
788 // case of complex rindex needs t <<
789 } <<
790 fNewMomentum = <<
791 fOldMomentum - 2. * fOldMomentum * <<
792 <<
793 if(f_iTE > 0 && f_iTM > 0) <<
794 { <<
795 fNewPolarization = <<
796 -fOldPolarization + <<
797 (2. * fOldPolarization * fFacetN <<
798 } <<
799 else if(f_iTE > 0) <<
800 { <<
801 A_trans = (fSint1 > 0.0) ? fOldMom <<
802 : fOldPol <<
803 fNewPolarization = -A_trans; <<
804 } <<
805 else if(f_iTM > 0) <<
806 { <<
807 fNewPolarization = <<
808 -fNewMomentum.cross(A_trans).uni <<
809 } <<
810 } <<
811 } <<
812 fOldMomentum = fNewMomentum; <<
813 fOldPolarization = fNewPolarization; <<
814 } <<
815 // Loop checking, 13-Aug-2015, Peter Gumpl <<
816 } while(fNewMomentum * fGlobalNormal < 0.0); <<
817 } <<
818 57
819 //....oooOO0OOooo........oooOO0OOooo........oo << 58 theStatus = Undefined;
820 void G4OpBoundaryProcess::DielectricLUT() << 59 theModel = glisur;
821 { << 60 theFinish = polished;
822 G4int thetaIndex, phiIndex; <<
823 G4double angularDistVal, thetaRad, phiRad; <<
824 G4ThreeVector perpVectorTheta, perpVectorPhi <<
825 <<
826 fStatus = G4OpBoundaryProcessStatus( <<
827 G4int(fFinish) + (G4int(NoRINDEX) - G4int( <<
828 <<
829 G4int thetaIndexMax = fOpticalSurface->GetTh <<
830 G4int phiIndexMax = fOpticalSurface->GetPh <<
831 <<
832 G4double rand; <<
833 <<
834 do <<
835 { <<
836 rand = G4UniformRand(); <<
837 if(rand > fReflectivity) <<
838 { <<
839 if(rand > fReflectivity + fTransmittance <<
840 { <<
841 DoAbsorption(); <<
842 } <<
843 else <<
844 { <<
845 fStatus = Transmission; <<
846 fNewMomentum = fOldMomentum; <<
847 fNewPolarization = fOldPolarization; <<
848 } <<
849 break; <<
850 } <<
851 else <<
852 { <<
853 // Calculate Angle between Normal and Ph <<
854 G4double anglePhotonToNormal = fOldMomen <<
855 // Round to closest integer: LBNL model <<
856 G4int angleIncident = (G4int)std::lrint( <<
857 <<
858 // Take random angles THETA and PHI, <<
859 // and see if below Probability - if not <<
860 do <<
861 { <<
862 thetaIndex = (G4int)G4RandFlat::shootI <<
863 phiIndex = (G4int)G4RandFlat::shootI <<
864 // Find probability with the new indec <<
865 angularDistVal = fOpticalSurface->GetA <<
866 angleIncident, thetaIndex, phiIndex) <<
867 // Loop checking, 13-Aug-2015, Peter G <<
868 } while(!G4BooleanRand(angularDistVal)); <<
869 <<
870 thetaRad = G4double(-90 + 4 * thetaIndex <<
871 phiRad = G4double(-90 + 5 * phiIndex) <<
872 // Rotate Photon Momentum in Theta, then <<
873 fNewMomentum = -fOldMomentum; <<
874 <<
875 perpVectorTheta = fNewMomentum.cross(fGl <<
876 if(perpVectorTheta.mag() < fCarTolerance <<
877 { <<
878 perpVectorTheta = fNewMomentum.orthogo <<
879 } <<
880 fNewMomentum = <<
881 fNewMomentum.rotate(anglePhotonToNorma <<
882 perpVectorPhi = perpVectorTheta.cross(fN <<
883 fNewMomentum = fNewMomentum.rotate(-phi <<
884 <<
885 // Rotate Polarization too: <<
886 fFacetNormal = (fNewMomentum - fOldM <<
887 fNewPolarization = -fOldPolarization + <<
888 (2. * fOldPolarizatio <<
889 } <<
890 // Loop checking, 13-Aug-2015, Peter Gumpl <<
891 } while(fNewMomentum * fGlobalNormal <= 0.0) <<
892 } 61 }
893 62
894 //....oooOO0OOooo........oooOO0OOooo........oo << 63 // G4OpBoundaryProcess::G4OpBoundaryProcess(const G4OpBoundaryProcess &right)
895 void G4OpBoundaryProcess::DielectricLUTDAVIS() << 64 // {
896 { << 65 // }
897 G4int angindex, random, angleIncident; <<
898 G4double reflectivityValue, elevation, azimu <<
899 G4double anglePhotonToNormal; <<
900 <<
901 G4int lutbin = fOpticalSurface->GetLUTbins( <<
902 G4double rand = G4UniformRand(); <<
903 <<
904 G4double sinEl; <<
905 G4ThreeVector u, vNorm, w; <<
906 <<
907 do <<
908 { <<
909 anglePhotonToNormal = fOldMomentum.angle(- <<
910 <<
911 // Davis model has 90 reflection bins: rou <<
912 // don't allow angleIncident to be 90 for <<
913 angleIncident = std::min( <<
914 static_cast<G4int>(std::floor(anglePhoto <<
915 reflectivityValue = fOpticalSurface->GetRe <<
916 <<
917 if(rand > reflectivityValue) <<
918 { <<
919 if(fEfficiency > 0.) <<
920 { <<
921 DoAbsorption(); <<
922 break; <<
923 } <<
924 else <<
925 { <<
926 fStatus = Transmission; <<
927 <<
928 if(angleIncident <= 0.01) <<
929 { <<
930 fNewMomentum = fOldMomentum; <<
931 break; <<
932 } <<
933 <<
934 do <<
935 { <<
936 random = (G4int)G4RandFlat::shootInt <<
937 angindex = <<
938 (((random * 2) - 1)) + angleIncide <<
939 <<
940 azimuth = <<
941 fOpticalSurface->GetAngularDistrib <<
942 elevation = fOpticalSurface->GetAngu <<
943 } while(elevation == 0. && azimuth == <<
944 <<
945 sinEl = std::sin(elevation); <<
946 vNorm = (fGlobalNormal.cross(fOldMomen <<
947 u = vNorm.cross(fGlobalNormal) * ( <<
948 vNorm *= (sinEl * std::sin(azimuth)); <<
949 // fGlobalNormal shouldn't be modified <<
950 w = (fGlobalNormal *= std:: <<
951 fNewMomentum = u + vNorm + w; <<
952 <<
953 // Rotate Polarization too: <<
954 fFacetNormal = (fNewMomentum - fOl <<
955 fNewPolarization = -fOldPolarization + <<
956 <<
957 } <<
958 } <<
959 else <<
960 { <<
961 fStatus = LobeReflection; <<
962 <<
963 if(angleIncident == 0) <<
964 { <<
965 fNewMomentum = -fOldMomentum; <<
966 break; <<
967 } <<
968 <<
969 do <<
970 { <<
971 random = (G4int)G4RandFlat::shootInt <<
972 angindex = (((random * 2) - 1)) + (ang <<
973 <<
974 azimuth = fOpticalSurface->GetAngularD <<
975 elevation = fOpticalSurface->GetAngula <<
976 } while(elevation == 0. && azimuth == 0. <<
977 <<
978 sinEl = std::sin(elevation); <<
979 vNorm = (fGlobalNormal.cross(fOldMomentu <<
980 u = vNorm.cross(fGlobalNormal) * (si <<
981 vNorm *= (sinEl * std::sin(azimuth)); <<
982 // fGlobalNormal shouldn't be modified h <<
983 w = (fGlobalNormal *= std::cos(elevation <<
984 <<
985 fNewMomentum = u + vNorm + w; <<
986 <<
987 // Rotate Polarization too: (needs revis <<
988 fNewPolarization = fOldPolarization; <<
989 } <<
990 } while(fNewMomentum * fGlobalNormal <= 0.0) <<
991 } <<
992 66
993 //....oooOO0OOooo........oooOO0OOooo........oo << 67 ////////////////
994 void G4OpBoundaryProcess::DielectricDichroic() << 68 // Destructors
995 { << 69 ////////////////
996 // Calculate Angle between Normal and Photon <<
997 G4double anglePhotonToNormal = fOldMomentum. <<
998 70
999 // Round it to closest integer << 71 G4OpBoundaryProcess::~G4OpBoundaryProcess(){}
1000 G4double angleIncident = std::floor(180. / <<
1001 72
1002 if(!fDichroicVector) << 73 ////////////
1003 { << 74 // Methods
1004 if(fOpticalSurface) << 75 ////////////
1005 fDichroicVector = fOpticalSurface->GetD <<
1006 } <<
1007 <<
1008 if(fDichroicVector) <<
1009 { <<
1010 G4double wavelength = h_Planck * c_light <<
1011 fTransmittance = fDichroicVector->Va <<
1012 i <<
1013 perCent; <<
1014 // G4cout << "wavelength: " << std::flo <<
1015 // << "nm" << <<
1016 // G4cout << "Incident angle: " << angl <<
1017 // G4cout << "Transmittance: " <<
1018 // << std::floor(fTransmittance/ <<
1019 } <<
1020 else <<
1021 { <<
1022 G4ExceptionDescription ed; <<
1023 ed << " G4OpBoundaryProcess/DielectricDic <<
1024 << " The dichroic surface has no G4Phy <<
1025 G4Exception("G4OpBoundaryProcess::Dielect <<
1026 FatalException, ed, <<
1027 "A dichroic surface must have <<
1028 } <<
1029 <<
1030 if(!G4BooleanRand(fTransmittance)) <<
1031 { // Not transmitted, so reflect <<
1032 if(fModel == glisur || fFinish == polishe <<
1033 { <<
1034 DoReflection(); <<
1035 } <<
1036 else <<
1037 { <<
1038 ChooseReflection(); <<
1039 if(fStatus == LambertianReflection) <<
1040 { <<
1041 DoReflection(); <<
1042 } <<
1043 else if(fStatus == BackScattering) <<
1044 { <<
1045 fNewMomentum = -fOldMomentum; <<
1046 fNewPolarization = -fOldPolarization; <<
1047 } <<
1048 else <<
1049 { <<
1050 G4double PdotN, EdotN; <<
1051 do <<
1052 { <<
1053 if(fStatus == LobeReflection) <<
1054 { <<
1055 fFacetNormal = GetFacetNormal(fOl <<
1056 } <<
1057 PdotN = fOldMomentum * fFace <<
1058 fNewMomentum = fOldMomentum - (2. * <<
1059 // Loop checking, 13-Aug-2015, Pete <<
1060 } while(fNewMomentum * fGlobalNormal <<
1061 <<
1062 EdotN = fOldPolarization * <<
1063 fNewPolarization = -fOldPolarization <<
1064 } <<
1065 } <<
1066 } <<
1067 else <<
1068 { <<
1069 fStatus = Dichroic; <<
1070 fNewMomentum = fOldMomentum; <<
1071 fNewPolarization = fOldPolarization; <<
1072 } <<
1073 } <<
1074 76
1075 //....oooOO0OOooo........oooOO0OOooo........o << 77 // PostStepDoIt
1076 void G4OpBoundaryProcess::DielectricDielectri << 78 // ------------
>> 79 //
>> 80 G4VParticleChange*
>> 81 G4OpBoundaryProcess::PostStepDoIt(const G4Track& aTrack, const G4Step& aStep)
1077 { 82 {
1078 G4bool inside = false; << 83 aParticleChange.Initialize(aTrack);
1079 G4bool swap = false; <<
1080 84
1081 if(fFinish == polished) << 85 G4StepPoint* pPreStepPoint = aStep.GetPreStepPoint();
1082 { << 86 G4StepPoint* pPostStepPoint = aStep.GetPostStepPoint();
1083 fFacetNormal = fGlobalNormal; <<
1084 } <<
1085 else <<
1086 { <<
1087 fFacetNormal = GetFacetNormal(fOldMomentu <<
1088 } <<
1089 G4double cost1 = -fOldMomentum * fFacetNorm <<
1090 G4double cost2 = 0.; <<
1091 G4double sint2 = 0.; <<
1092 <<
1093 G4bool surfaceRoughnessCriterionPass = true <<
1094 if(fSurfaceRoughness != 0. && fRindex1 > fR <<
1095 { <<
1096 G4double wavelength = h_Pl <<
1097 G4double surfaceRoughnessCriterion = std: <<
1098 (4. * pi * fSurfaceRoughness * fRindex1 <<
1099 surfaceRoughnessCriterionPass = G4Boolean <<
1100 } <<
1101 <<
1102 leap: <<
1103 <<
1104 G4bool through = false; <<
1105 G4bool done = false; <<
1106 <<
1107 G4ThreeVector A_trans, A_paral, E1pp, E1pl; <<
1108 G4double E1_perp, E1_parl; <<
1109 G4double s1, s2, E2_perp, E2_parl, E2_total <<
1110 G4double E2_abs, C_parl, C_perp; <<
1111 G4double alpha; <<
1112 <<
1113 do <<
1114 { <<
1115 if(through) <<
1116 { <<
1117 swap = !swap; <<
1118 through = false; <<
1119 fGlobalNormal = -fGlobalNormal; <<
1120 G4SwapPtr(fMaterial1, fMaterial2); <<
1121 G4SwapObj(&fRindex1, &fRindex2); <<
1122 } <<
1123 <<
1124 if(fFinish == polished) <<
1125 { <<
1126 fFacetNormal = fGlobalNormal; <<
1127 } <<
1128 else <<
1129 { <<
1130 fFacetNormal = GetFacetNormal(fOldMomen <<
1131 } <<
1132 <<
1133 cost1 = -fOldMomentum * fFacetNormal; <<
1134 if(std::abs(cost1) < 1.0 - fCarTolerance) <<
1135 { <<
1136 fSint1 = std::sqrt(1. - cost1 * cost1); <<
1137 sint2 = fSint1 * fRindex1 / fRindex2; <<
1138 // this isn't a sine as we might expect <<
1139 } <<
1140 else <<
1141 { <<
1142 fSint1 = 0.0; <<
1143 sint2 = 0.0; <<
1144 } <<
1145 <<
1146 // TOTAL INTERNAL REFLECTION <<
1147 if(sint2 >= 1.0) <<
1148 { <<
1149 swap = false; <<
1150 <<
1151 fStatus = TotalInternalReflection; <<
1152 if(!surfaceRoughnessCriterionPass) <<
1153 fStatus = LambertianReflection; <<
1154 if(fModel == unified && fFinish != poli <<
1155 ChooseReflection(); <<
1156 if(fStatus == LambertianReflection) <<
1157 { <<
1158 DoReflection(); <<
1159 } <<
1160 else if(fStatus == BackScattering) <<
1161 { <<
1162 fNewMomentum = -fOldMomentum; <<
1163 fNewPolarization = -fOldPolarization; <<
1164 } <<
1165 else <<
1166 { <<
1167 fNewMomentum = <<
1168 fOldMomentum - 2. * fOldMomentum * <<
1169 fNewPolarization = -fOldPolarization <<
1170 <<
1171 } <<
1172 } <<
1173 // NOT TIR <<
1174 else if(sint2 < 1.0) <<
1175 { <<
1176 // Calculate amplitude for transmission <<
1177 if(cost1 > 0.0) <<
1178 { <<
1179 cost2 = std::sqrt(1. - sint2 * sint2) <<
1180 } <<
1181 else <<
1182 { <<
1183 cost2 = -std::sqrt(1. - sint2 * sint2 <<
1184 } <<
1185 <<
1186 if(fSint1 > 0.0) <<
1187 { <<
1188 A_trans = (fOldMomentum.cross(fFacetN <<
1189 E1_perp = fOldPolarization * A_trans; <<
1190 E1pp = E1_perp * A_trans; <<
1191 E1pl = fOldPolarization - E1pp; <<
1192 E1_parl = E1pl.mag(); <<
1193 } <<
1194 else <<
1195 { <<
1196 A_trans = fOldPolarization; <<
1197 // Here we Follow Jackson's conventio <<
1198 // component = 1 in case of a ray per <<
1199 E1_perp = 0.0; <<
1200 E1_parl = 1.0; <<
1201 } <<
1202 <<
1203 s1 = fRindex1 * cost1; <<
1204 E2_perp = 2. * s1 * E1_perp / (fRindex <<
1205 E2_parl = 2. * s1 * E1_parl / (fRindex <<
1206 E2_total = E2_perp * E2_perp + E2_parl <<
1207 s2 = fRindex2 * cost2 * E2_total; <<
1208 <<
1209 // D.Sawkey, 24 May 24 <<
1210 // Transmittance has already been taken <<
1211 // For e.g. specular surfaces, the rati <<
1212 // reflection should be given by the ma <<
1213 // TRANSMITTANCE <<
1214 //if(fTransmittance > 0.) <<
1215 // transCoeff = fTransmittance; <<
1216 //else if(cost1 != 0.0) <<
1217 if(cost1 != 0.0) <<
1218 transCoeff = s2 / s1; <<
1219 else <<
1220 transCoeff = 0.0; <<
1221 <<
1222 // NOT TIR: REFLECTION <<
1223 if(!G4BooleanRand(transCoeff)) <<
1224 { <<
1225 swap = false; <<
1226 fStatus = FresnelReflection; <<
1227 <<
1228 if(!surfaceRoughnessCriterionPass) <<
1229 fStatus = LambertianReflection; <<
1230 if(fModel == unified && fFinish != po <<
1231 ChooseReflection(); <<
1232 if(fStatus == LambertianReflection) <<
1233 { <<
1234 DoReflection(); <<
1235 } <<
1236 else if(fStatus == BackScattering) <<
1237 { <<
1238 fNewMomentum = -fOldMomentum; <<
1239 fNewPolarization = -fOldPolarizatio <<
1240 } <<
1241 else <<
1242 { <<
1243 fNewMomentum = <<
1244 fOldMomentum - 2. * fOldMomentum <<
1245 if(fSint1 > 0.0) <<
1246 { // incident ray oblique <<
1247 E2_parl = fRindex2 * E2_parl / f <<
1248 E2_perp = E2_perp - E1_perp; <<
1249 E2_total = E2_perp * E2_perp + E2 <<
1250 A_paral = (fNewMomentum.cross(A_ <<
1251 E2_abs = std::sqrt(E2_total); <<
1252 C_parl = E2_parl / E2_abs; <<
1253 C_perp = E2_perp / E2_abs; <<
1254 <<
1255 fNewPolarization = C_parl * A_par <<
1256 } <<
1257 else <<
1258 { // incident ray perpendicular <<
1259 if(fRindex2 > fRindex1) <<
1260 { <<
1261 fNewPolarization = -fOldPolariz <<
1262 } <<
1263 else <<
1264 { <<
1265 fNewPolarization = fOldPolariza <<
1266 } <<
1267 } <<
1268 } <<
1269 } <<
1270 // NOT TIR: TRANSMISSION <<
1271 else <<
1272 { <<
1273 inside = !inside; <<
1274 through = true; <<
1275 fStatus = FresnelRefraction; <<
1276 <<
1277 if(fSint1 > 0.0) <<
1278 { // incident ray oblique <<
1279 alpha = cost1 - cost2 * (fRi <<
1280 fNewMomentum = (fOldMomentum + alph <<
1281 A_paral = (fNewMomentum.cross( <<
1282 E2_abs = std::sqrt(E2_total); <<
1283 C_parl = E2_parl / E2_abs; <<
1284 C_perp = E2_perp / E2_abs; <<
1285 87
1286 fNewPolarization = C_parl * A_paral << 88 if (pPostStepPoint->GetStepStatus() != fGeomBoundary)
1287 } << 89 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
1288 else << 90
1289 { // incident ray perpendicular << 91 if (aTrack.GetStepLength()<=kCarTolerance/2)
1290 fNewMomentum = fOldMomentum; << 92 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
1291 fNewPolarization = fOldPolarization << 93
>> 94 Material1 = pPreStepPoint ->GetPhysicalVolume()->
>> 95 GetLogicalVolume()->GetMaterial();
>> 96 Material2 = pPostStepPoint->GetPhysicalVolume()->
>> 97 GetLogicalVolume()->GetMaterial();
>> 98
>> 99 if (Material1 == Material2)
>> 100 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 101
>> 102 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
>> 103
>> 104 thePhotonMomentum = aParticle->GetTotalMomentum();
>> 105 OldMomentum = aParticle->GetMomentumDirection();
>> 106 OldPolarization = aParticle->GetPolarization();
>> 107
>> 108 if ( verboseLevel > 0 ) {
>> 109 G4cout << " Photon at Boundary! " << endl;
>> 110 G4cout << " Old Momentum Direction: " << OldMomentum << endl;
>> 111 G4cout << " Old Polarization: " << OldPolarization << endl;
>> 112 }
>> 113
>> 114 G4MaterialPropertiesTable* aMaterialPropertiesTable;
>> 115 G4MaterialPropertyVector* Rindex;
>> 116
>> 117 aMaterialPropertiesTable = Material1->GetMaterialPropertiesTable();
>> 118 if (aMaterialPropertiesTable) {
>> 119 Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
>> 120 }
>> 121 else {
>> 122 aParticleChange.SetStatusChange(fStopAndKill);
>> 123 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 124 }
>> 125
>> 126 if (Rindex) {
>> 127 Rindex1 = Rindex->GetProperty(thePhotonMomentum);
>> 128 }
>> 129 else {
>> 130 aParticleChange.SetStatusChange(fStopAndKill);
>> 131 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 132 }
>> 133
>> 134 Rindex = NULL;
>> 135 OpticalSurface = NULL;
>> 136
>> 137 aMaterialPropertiesTable = Material2->GetMaterialPropertiesTable();
>> 138 if (aMaterialPropertiesTable)
>> 139 Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
>> 140
>> 141 G4LogicalSurface* Surface = G4LogicalBorderSurface::GetSurface
>> 142 (pPreStepPoint ->GetPhysicalVolume(),
>> 143 pPostStepPoint->GetPhysicalVolume());
>> 144
>> 145 if (Surface == NULL) Surface = G4LogicalSkinSurface::GetSurface
>> 146 (pPreStepPoint->GetPhysicalVolume()->
>> 147 GetLogicalVolume());
>> 148
>> 149 if (Surface != NULL) OpticalSurface = Surface->GetOpticalSurface();
>> 150
>> 151 theModel = glisur;
>> 152 theFinish = polished;
>> 153
>> 154 G4OpticalSurfaceType type;
>> 155 if (Rindex) {
>> 156 type = dielectric_dielectric;
>> 157 // if (OpticalSurface) type = OpticalSurface->GetType();
>> 158 Rindex2 = Rindex->GetProperty(thePhotonMomentum);
>> 159 }
>> 160 else if (OpticalSurface) {
>> 161 type = OpticalSurface->GetType();
>> 162 }
>> 163 else {
>> 164 aParticleChange.SetStatusChange(fStopAndKill);
>> 165 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 166 }
>> 167
>> 168 if (OpticalSurface) {
>> 169 theModel = OpticalSurface->GetModel();
>> 170 theFinish = OpticalSurface->GetFinish();
>> 171
>> 172 aMaterialPropertiesTable = OpticalSurface->
>> 173 GetMaterialPropertiesTable();
>> 174
>> 175 if (aMaterialPropertiesTable) {
>> 176 G4MaterialPropertyVector* PropertyPointer;
>> 177
>> 178 if(!Rindex) {
>> 179 PropertyPointer =
>> 180 aMaterialPropertiesTable->GetProperty("RINDEX");
>> 181 if (PropertyPointer) Rindex2 =
>> 182 PropertyPointer->GetProperty(thePhotonMomentum);
>> 183 }
>> 184
>> 185 PropertyPointer =
>> 186 aMaterialPropertiesTable->GetProperty("REFLECTIVITY");
>> 187 if (PropertyPointer) theReflectivity =
>> 188 PropertyPointer->GetProperty(thePhotonMomentum);
>> 189
>> 190 PropertyPointer =
>> 191 aMaterialPropertiesTable->GetProperty("EFFICIENCY");
>> 192 if (PropertyPointer) theEfficiency =
>> 193 PropertyPointer->GetProperty(thePhotonMomentum);
>> 194
>> 195 if ( theModel == unified ) {
>> 196 PropertyPointer =
>> 197 aMaterialPropertiesTable->GetProperty("SPECULARLOBECONSTANT");
>> 198 if (PropertyPointer) prob_sl =
>> 199 PropertyPointer->GetProperty(thePhotonMomentum);
>> 200
>> 201 PropertyPointer =
>> 202 aMaterialPropertiesTable->GetProperty("SPECULARSPIKECONSTANT");
>> 203 if (PropertyPointer) prob_ss =
>> 204 PropertyPointer->GetProperty(thePhotonMomentum);
>> 205
>> 206 PropertyPointer =
>> 207 aMaterialPropertiesTable->GetProperty("BACKSCATTERCONSTANT");
>> 208 if (PropertyPointer) prob_bs =
>> 209 PropertyPointer->GetProperty(thePhotonMomentum);
>> 210 }
>> 211 }
>> 212 }
>> 213
>> 214 G4ThreeVector theGlobalPoint = pPostStepPoint->GetPosition();
>> 215
>> 216 G4Navigator* theNavigator =
>> 217 G4TransportationManager::GetTransportationManager()->
>> 218 GetNavigatorForTracking();
>> 219
>> 220 G4ThreeVector theLocalPoint = theNavigator->
>> 221 GetGlobalToLocalTransform().
>> 222 TransformPoint(theGlobalPoint);
>> 223
>> 224 G4ThreeVector theLocalNormal; // Normal points back into volume
>> 225
>> 226 G4bool valid;
>> 227 theLocalNormal = theNavigator->GetLocalExitNormal(&valid);
>> 228
>> 229 if (valid) {
>> 230 theLocalNormal = -theLocalNormal;
>> 231 }
>> 232 else {
>> 233 G4cerr << " G4OpBoundaryProcess/PostStepDoIt(): "
>> 234 << " The Navigator reports that it returned an invalid normal"
>> 235 << endl;
>> 236 }
>> 237
>> 238 theGlobalNormal = theNavigator->GetLocalToGlobalTransform().
>> 239 TransformAxis(theLocalNormal);
>> 240
>> 241 theStatus = Undefined;
>> 242
>> 243 if (type == dielectric_metal) {
>> 244
>> 245 DielectricMetal();
>> 246
>> 247 }
>> 248 else if (type == dielectric_dielectric) {
>> 249
>> 250 if ( theFinish == polishedfrontpainted ||
>> 251 theFinish == groundfrontpainted ) {
>> 252 if( !G4BooleanRand(theReflectivity) ) {
>> 253 DoAbsorption();
>> 254 }
>> 255 else {
>> 256 if ( theFinish == groundfrontpainted )
>> 257 theStatus = LambertianReflection;
>> 258 DoReflection();
>> 259 }
>> 260 }
>> 261 else {
>> 262 DielectricDielectric();
>> 263 }
>> 264 }
>> 265 else {
>> 266
>> 267 G4cout << " Error: G4BoundaryProcess: illegal boundary type " << endl;
>> 268 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 269
>> 270 }
>> 271
>> 272 NewMomentum = NewMomentum.unit();
>> 273 NewPolarization = NewPolarization.unit();
>> 274
>> 275 if ( verboseLevel > 0) {
>> 276 G4cout << " New Momentum Direction: " << NewMomentum << endl;
>> 277 G4cout << " New Polarization: " << NewPolarization << endl;
>> 278 if ( theStatus == Undefined )
>> 279 G4cout << " *** Undefined *** " << endl;
>> 280 if ( theStatus == FresnelRefraction )
>> 281 G4cout << " *** FresnelRefraction *** " << endl;
>> 282 if ( theStatus == FresnelReflection )
>> 283 G4cout << " *** FresnelReflection *** " << endl;
>> 284 if ( theStatus == TotalInternalReflection )
>> 285 G4cout << " *** TotalInternalReflection *** " << endl;
>> 286 if ( theStatus == LambertianReflection )
>> 287 G4cout << " *** LambertianReflection *** " << endl;
>> 288 if ( theStatus == LobeReflection )
>> 289 G4cout << " *** LobeReflection *** " << endl;
>> 290 if ( theStatus == SpikeReflection )
>> 291 G4cout << " *** SpikeReflection *** " << endl;
>> 292 if ( theStatus == BackScattering )
>> 293 G4cout << " *** BackScattering *** " << endl;
>> 294 if ( theStatus == Absorption )
>> 295 G4cout << " *** Absorption *** " << endl;
>> 296 if ( theStatus == Detection )
>> 297 G4cout << " *** Detection *** " << endl;
1292 } 298 }
1293 } <<
1294 } <<
1295 <<
1296 fOldMomentum = fNewMomentum.unit(); <<
1297 fOldPolarization = fNewPolarization.unit( <<
1298 <<
1299 if(fStatus == FresnelRefraction) <<
1300 { <<
1301 done = (fNewMomentum * fGlobalNormal <= <<
1302 } <<
1303 else <<
1304 { <<
1305 done = (fNewMomentum * fGlobalNormal >= <<
1306 } <<
1307 // Loop checking, 13-Aug-2015, Peter Gump <<
1308 } while(!done); <<
1309 <<
1310 if(inside && !swap) <<
1311 { <<
1312 if(fFinish == polishedbackpainted || fFin <<
1313 { <<
1314 G4double rand = G4UniformRand(); <<
1315 if(rand > fReflectivity + fTransmittanc <<
1316 { <<
1317 DoAbsorption(); <<
1318 } <<
1319 else if(rand > fReflectivity) <<
1320 { <<
1321 fStatus = Transmission; <<
1322 fNewMomentum = fOldMomentum; <<
1323 fNewPolarization = fOldPolarization; <<
1324 } <<
1325 else <<
1326 { <<
1327 if(fStatus != FresnelRefraction) <<
1328 { <<
1329 fGlobalNormal = -fGlobalNormal; <<
1330 } <<
1331 else <<
1332 { <<
1333 swap = !swap; <<
1334 G4SwapPtr(fMaterial1, fMaterial2); <<
1335 G4SwapObj(&fRindex1, &fRindex2); <<
1336 } <<
1337 if(fFinish == groundbackpainted) <<
1338 fStatus = LambertianReflection; <<
1339 <<
1340 DoReflection(); <<
1341 299
1342 fGlobalNormal = -fGlobalNormal; << 300 aParticleChange.SetMomentumChange(NewMomentum);
1343 fOldMomentum = fNewMomentum; << 301 aParticleChange.SetPolarizationChange(NewPolarization);
1344 302
1345 goto leap; << 303 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
1346 } <<
1347 } <<
1348 } <<
1349 } 304 }
1350 305
1351 //....oooOO0OOooo........oooOO0OOooo........o << 306 G4ThreeVector
1352 G4double G4OpBoundaryProcess::GetMeanFreePath << 307 G4OpBoundaryProcess::GetFacetNormal(const G4ThreeVector& Momentum,
1353 << 308 const G4ThreeVector& Normal ) const
1354 { << 309 {
1355 *condition = Forced; << 310 G4ThreeVector FacetNormal;
1356 return DBL_MAX; << 311
>> 312 if (theModel == unified) {
>> 313
>> 314 /* This function code alpha to a random value taken from the
>> 315 distribution p(alpha) = g(alpha; 0, sigma_alpha)*sin(alpha),
>> 316 for alpha > 0 and alpha < 90, where g(alpha; 0, sigma_alpha)
>> 317 is a gaussian distribution with mean 0 and standard deviation
>> 318 sigma_alpha. */
>> 319
>> 320 G4double alpha;
>> 321
>> 322 G4double sigma_alpha = 0.0;
>> 323 if (OpticalSurface) sigma_alpha = OpticalSurface->GetSigmaAlpha();
>> 324
>> 325 G4double f_max = min(1.0,4.*sigma_alpha);
>> 326
>> 327 do {
>> 328 do {
>> 329 alpha = RandGauss::shoot(0.0,sigma_alpha);
>> 330 } while (G4UniformRand()*f_max > sin(alpha) || alpha >= halfpi );
>> 331
>> 332 G4double phi = G4UniformRand()*twopi;
>> 333
>> 334 G4double SinAlpha = sin(alpha);
>> 335 G4double CosAlpha = cos(alpha);
>> 336 G4double SinPhi = sin(phi);
>> 337 G4double CosPhi = cos(phi);
>> 338
>> 339 G4double unit_x = SinAlpha * CosPhi;
>> 340 G4double unit_y = SinAlpha * SinPhi;
>> 341 G4double unit_z = CosAlpha;
>> 342
>> 343 FacetNormal.setX(unit_x);
>> 344 FacetNormal.setY(unit_y);
>> 345 FacetNormal.setZ(unit_z);
>> 346
>> 347 G4ThreeVector tmpNormal = Normal;
>> 348
>> 349 FacetNormal.rotateUz(tmpNormal);
>> 350 } while (Momentum * FacetNormal >= 0.0);
>> 351 }
>> 352 else {
>> 353
>> 354 G4double polish = 1.0;
>> 355 if (OpticalSurface) polish = OpticalSurface->GetPolish();
>> 356
>> 357 if (polish < 1.0) {
>> 358 do {
>> 359 G4ThreeVector smear;
>> 360 do {
>> 361 smear.setX(2.*G4UniformRand()-1.0);
>> 362 smear.setY(2.*G4UniformRand()-1.0);
>> 363 smear.setZ(2.*G4UniformRand()-1.0);
>> 364 } while (smear.mag()>1.0);
>> 365 smear = (1.-polish) * smear;
>> 366 FacetNormal = Normal + smear;
>> 367 } while (Momentum * FacetNormal >= 0.0);
>> 368 FacetNormal = FacetNormal.unit();
>> 369 }
>> 370 else {
>> 371 FacetNormal = Normal;
>> 372 }
>> 373 }
>> 374 return FacetNormal;
1357 } 375 }
1358 376
1359 //....oooOO0OOooo........oooOO0OOooo........o << 377 void G4OpBoundaryProcess::DielectricMetal()
1360 G4double G4OpBoundaryProcess::GetIncidentAngl <<
1361 { 378 {
1362 return pi - std::acos(fOldMomentum * fFacet << 379 do {
1363 (fOldMomentum.mag() * << 380 if( !G4BooleanRand(theReflectivity) ) {
1364 } <<
1365 381
1366 //....oooOO0OOooo........oooOO0OOooo........o << 382 DoAbsorption();
1367 G4double G4OpBoundaryProcess::GetReflectivity << 383 break;
1368 <<
1369 <<
1370 <<
1371 <<
1372 { <<
1373 G4complex reflectivity, reflectivity_TE, re <<
1374 G4complex N1(fRindex1, 0.), N2(realRindex, <<
1375 G4complex cosPhi; <<
1376 <<
1377 G4complex u(1., 0.); // unit number 1 <<
1378 <<
1379 G4complex numeratorTE; // E1_perp=1 E1_par <<
1380 G4complex numeratorTM; // E1_parl=1 E1_per <<
1381 G4complex denominatorTE, denominatorTM; <<
1382 G4complex rTM, rTE; <<
1383 <<
1384 G4MaterialPropertiesTable* MPT = fMaterial1 <<
1385 G4MaterialPropertyVector* ppR = MPT->GetPr <<
1386 G4MaterialPropertyVector* ppI = MPT->GetPr <<
1387 if(ppR && ppI) <<
1388 { <<
1389 G4double rRindex = ppR->Value(fPhotonMome <<
1390 G4double iRindex = ppI->Value(fPhotonMome <<
1391 N1 = G4complex(rRindex, iRi <<
1392 } <<
1393 <<
1394 // Following two equations, rTM and rTE, ar <<
1395 // Optics" written by Fowles <<
1396 cosPhi = std::sqrt(u - ((std::sin(incidenta <<
1397 (N1 * N1) / (N2 * N <<
1398 <<
1399 numeratorTE = N1 * std::cos(incidentangle <<
1400 denominatorTE = N1 * std::cos(incidentangle <<
1401 rTE = numeratorTE / denominatorTE <<
1402 <<
1403 numeratorTM = N2 * std::cos(incidentangle <<
1404 denominatorTM = N2 * std::cos(incidentangle <<
1405 rTM = numeratorTM / denominatorTM <<
1406 <<
1407 // This is my (PG) calculaton for reflectiv <<
1408 // depending on the fraction of TE and TM p <<
1409 // when TE polarization, E1_parl=0 and E1_p <<
1410 // when TM polarization, E1_parl=1 and E1_p <<
1411 <<
1412 reflectivity_TE = (rTE * conj(rTE)) * (E1_p <<
1413 (E1_perp * E1_perp + E1_p <<
1414 reflectivity_TM = (rTM * conj(rTM)) * (E1_p <<
1415 (E1_perp * E1_perp + E1_p <<
1416 reflectivity = reflectivity_TE + reflectivi <<
1417 <<
1418 do <<
1419 { <<
1420 if(G4UniformRand() * real(reflectivity) > <<
1421 { <<
1422 f_iTE = -1; <<
1423 } <<
1424 else <<
1425 { <<
1426 f_iTE = 1; <<
1427 } <<
1428 if(G4UniformRand() * real(reflectivity) > <<
1429 { <<
1430 f_iTM = -1; <<
1431 } <<
1432 else <<
1433 { <<
1434 f_iTM = 1; <<
1435 } <<
1436 // Loop checking, 13-Aug-2015, Peter Gump <<
1437 } while(f_iTE < 0 && f_iTM < 0); <<
1438 384
1439 return real(reflectivity); << 385 }
1440 } << 386 else {
1441 387
1442 //....oooOO0OOooo........oooOO0OOooo........o << 388 DoReflection();
1443 void G4OpBoundaryProcess::CalculateReflectivi <<
1444 { <<
1445 G4double realRindex = fRealRIndexMPV->Value <<
1446 G4double imaginaryRindex = <<
1447 fImagRIndexMPV->Value(fPhotonMomentum, id <<
1448 <<
1449 // calculate FacetNormal <<
1450 if(fFinish == ground) <<
1451 { <<
1452 fFacetNormal = GetFacetNormal(fOldMomentu <<
1453 } <<
1454 else <<
1455 { <<
1456 fFacetNormal = fGlobalNormal; <<
1457 } <<
1458 <<
1459 G4double cost1 = -fOldMomentum * fFacetNorm <<
1460 if(std::abs(cost1) < 1.0 - fCarTolerance) <<
1461 { <<
1462 fSint1 = std::sqrt(1. - cost1 * cost1); <<
1463 } <<
1464 else <<
1465 { <<
1466 fSint1 = 0.0; <<
1467 } <<
1468 <<
1469 G4ThreeVector A_trans, A_paral, E1pp, E1pl; <<
1470 G4double E1_perp, E1_parl; <<
1471 <<
1472 if(fSint1 > 0.0) <<
1473 { <<
1474 A_trans = (fOldMomentum.cross(fFacetNorma <<
1475 E1_perp = fOldPolarization * A_trans; <<
1476 E1pp = E1_perp * A_trans; <<
1477 E1pl = fOldPolarization - E1pp; <<
1478 E1_parl = E1pl.mag(); <<
1479 } <<
1480 else <<
1481 { <<
1482 A_trans = fOldPolarization; <<
1483 // Here we Follow Jackson's conventions a <<
1484 // component = 1 in case of a ray perpend <<
1485 E1_perp = 0.0; <<
1486 E1_parl = 1.0; <<
1487 } <<
1488 <<
1489 G4double incidentangle = GetIncidentAngle() <<
1490 <<
1491 // calculate the reflectivity depending on <<
1492 // polarization and complex refractive <<
1493 fReflectivity = GetReflectivity(E1_perp, E1 <<
1494 imaginaryRi <<
1495 } <<
1496 389
1497 //....oooOO0OOooo........oooOO0OOooo........o << 390 OldMomentum = NewMomentum;
1498 G4bool G4OpBoundaryProcess::InvokeSD(const G4 << 391 OldPolarization = NewPolarization;
1499 { <<
1500 G4Step aStep = *pStep; <<
1501 aStep.AddTotalEnergyDeposit(fPhotonMomentum <<
1502 392
1503 G4VSensitiveDetector* sd = aStep.GetPostSte << 393 }
1504 if(sd != nullptr) <<
1505 return sd->Hit(&aStep); <<
1506 else <<
1507 return false; <<
1508 } <<
1509 394
1510 //....oooOO0OOooo........oooOO0OOooo........o << 395 } while (NewMomentum * theGlobalNormal < 0.0);
1511 inline void G4OpBoundaryProcess::SetInvokeSD( <<
1512 { <<
1513 fInvokeSD = flag; <<
1514 G4OpticalParameters::Instance()->SetBoundar <<
1515 } <<
1516 <<
1517 //....oooOO0OOooo........oooOO0OOooo........o <<
1518 void G4OpBoundaryProcess::SetVerboseLevel(G4i <<
1519 { <<
1520 verboseLevel = verbose; <<
1521 G4OpticalParameters::Instance()->SetBoundar <<
1522 } 396 }
1523 397
1524 //....oooOO0OOooo........oooOO0OOooo........o << 398 void G4OpBoundaryProcess::DielectricDielectric()
1525 void G4OpBoundaryProcess::CoatedDielectricDie <<
1526 { 399 {
1527 G4MaterialPropertyVector* pp = nullptr; << 400 G4bool Inside = false;
1528 << 401 G4bool Swap = false;
1529 G4MaterialPropertiesTable* MPT = fMaterial2 <<
1530 if((pp = MPT->GetProperty(kRINDEX))) <<
1531 { <<
1532 fRindex2 = pp->Value(fPhotonMomentum, idx <<
1533 } <<
1534 <<
1535 MPT = fOpticalSurface->GetMaterialPropertie <<
1536 if((pp = MPT->GetProperty(kCOATEDRINDEX))) <<
1537 { <<
1538 fCoatedRindex = pp->Value(fPhotonMomentum <<
1539 } <<
1540 if(MPT->ConstPropertyExists(kCOATEDTHICKNES <<
1541 { <<
1542 fCoatedThickness = MPT->GetConstProperty( <<
1543 } <<
1544 if(MPT->ConstPropertyExists(kCOATEDFRUSTRAT <<
1545 { <<
1546 fCoatedFrustratedTransmission = <<
1547 (G4bool)MPT->GetConstProperty(kCOATEDFR <<
1548 } <<
1549 <<
1550 G4double sintTL; <<
1551 G4double wavelength = h_Planck * c_light / <<
1552 G4double PdotN; <<
1553 G4double E1_perp, E1_parl; <<
1554 G4double s1, E2_perp, E2_parl, E2_total, tr <<
1555 G4double E2_abs, C_parl, C_perp; <<
1556 G4double alpha; <<
1557 G4ThreeVector A_trans, A_paral, E1pp, E1pl; <<
1558 //G4bool Inside = false; <<
1559 //G4bool Swap = false; <<
1560 G4bool through = false; <<
1561 G4bool done = false; <<
1562 <<
1563 do { <<
1564 if (through) <<
1565 { <<
1566 //Swap = !Swap; <<
1567 through = false; <<
1568 fGlobalNormal = -fGlobalNormal; <<
1569 G4SwapPtr(fMaterial1, fMaterial2); <<
1570 G4SwapObj(&fRindex1, &fRindex2); <<
1571 } <<
1572 <<
1573 if(fFinish == polished) <<
1574 { <<
1575 fFacetNormal = fGlobalNormal; <<
1576 } <<
1577 else <<
1578 { <<
1579 fFacetNormal = GetFacetNormal(fOldMomen <<
1580 } <<
1581 <<
1582 PdotN = fOldMomentum * fFacetNormal; <<
1583 G4double cost1 = -PdotN; <<
1584 G4double sint2, cost2 = 0.; <<
1585 <<
1586 if (std::abs(cost1) < 1.0 - fCarTolerance <<
1587 { <<
1588 fSint1 = std::sqrt(1. - cost1 * cost1); <<
1589 sint2 = fSint1 * fRindex1 / fRindex2; <<
1590 sintTL = fSint1 * fRindex1 / fCoatedRin <<
1591 } else <<
1592 { <<
1593 fSint1 = 0.0; <<
1594 sint2 = 0.0; <<
1595 sintTL = 0.0; <<
1596 } <<
1597 <<
1598 if (fSint1 > 0.0) <<
1599 { <<
1600 A_trans = fOldMomentum.cross(fFacetNorm <<
1601 A_trans = A_trans.unit(); <<
1602 E1_perp = fOldPolarization * A_trans; <<
1603 E1pp = E1_perp * A_trans; <<
1604 E1pl = fOldPolarization - E1pp; <<
1605 E1_parl = E1pl.mag(); <<
1606 } <<
1607 else <<
1608 { <<
1609 A_trans = fOldPolarization; <<
1610 E1_perp = 0.0; <<
1611 E1_parl = 1.0; <<
1612 } <<
1613 <<
1614 s1 = fRindex1 * cost1; <<
1615 <<
1616 if (cost1 > 0.0) <<
1617 { <<
1618 cost2 = std::sqrt(1. - sint2 * sint2); <<
1619 } <<
1620 else <<
1621 { <<
1622 cost2 = -std::sqrt(1. - sint2 * sint2); <<
1623 } <<
1624 <<
1625 transCoeff = 0.0; <<
1626 <<
1627 if (sintTL >= 1.0) <<
1628 { // --> Angle > Angle Limit <<
1629 //Swap = false; <<
1630 } <<
1631 E2_perp = 2. * s1 * E1_perp / (fRindex1 * <<
1632 E2_parl = 2. * s1 * E1_parl / (fRindex2 * <<
1633 E2_total = E2_perp * E2_perp + E2_parl * <<
1634 <<
1635 transCoeff = 1. - GetReflectivityThroughT <<
1636 sintTL, E1_perp, E1_p <<
1637 if (!G4BooleanRand(transCoeff)) <<
1638 { <<
1639 if(verboseLevel > 2) <<
1640 G4cout << "Reflection from " << fMate <<
1641 << fMaterial2->GetName() << G4 <<
1642 <<
1643 //Swap = false; <<
1644 <<
1645 if (sintTL >= 1.0) <<
1646 { <<
1647 fStatus = TotalInternalReflection; <<
1648 } <<
1649 else <<
1650 { <<
1651 fStatus = CoatedDielectricReflection; <<
1652 } <<
1653 <<
1654 PdotN = fOldMomentum * fFacetNormal; <<
1655 fNewMomentum = fOldMomentum - (2. * Pdo <<
1656 <<
1657 if (fSint1 > 0.0) { // incident ray o <<
1658 <<
1659 E2_parl = fRindex2 * E2_parl / fRinde <<
1660 E2_perp = E2_perp - E1_perp; <<
1661 E2_total = E2_perp * E2_perp + E2_par <<
1662 A_paral = fNewMomentum.cross(A_trans) <<
1663 A_paral = A_paral.unit(); <<
1664 E2_abs = std::sqrt(E2_total); <<
1665 C_parl = E2_parl / E2_abs; <<
1666 C_perp = E2_perp / E2_abs; <<
1667 <<
1668 fNewPolarization = C_parl * A_paral + <<
1669 <<
1670 } <<
1671 else <<
1672 { // incident ray perpend <<
1673 if (fRindex2 > fRindex1) <<
1674 { <<
1675 fNewPolarization = -fOldPolarizatio <<
1676 } <<
1677 else <<
1678 { <<
1679 fNewPolarization = fOldPolarization <<
1680 } <<
1681 } <<
1682 <<
1683 } else { // photon gets transmitted <<
1684 if (verboseLevel > 2) <<
1685 G4cout << "Transmission from " << fMa <<
1686 << fMaterial2->GetName() << G4 <<
1687 <<
1688 //Inside = !Inside; <<
1689 through = true; <<
1690 <<
1691 if (fEfficiency > 0.) <<
1692 { <<
1693 DoAbsorption(); <<
1694 return; <<
1695 } <<
1696 else <<
1697 { <<
1698 if (sintTL >= 1.0) <<
1699 { <<
1700 fStatus = CoatedDielectricFrustrate <<
1701 } <<
1702 else <<
1703 { <<
1704 fStatus = CoatedDielectricRefractio <<
1705 } <<
1706 <<
1707 if (fSint1 > 0.0) { // incident <<
1708 <<
1709 alpha = cost1 - cost2 * (fRindex2 / <<
1710 fNewMomentum = fOldMomentum + alpha <<
1711 fNewMomentum = fNewMomentum.unit(); <<
1712 A_paral = fNewMomentum.cross(A_tran <<
1713 A_paral = A_paral.unit(); <<
1714 E2_abs = std::sqrt(E2_total); <<
1715 C_parl = E2_parl / E2_abs; <<
1716 C_perp = E2_perp / E2_abs; <<
1717 <<
1718 fNewPolarization = C_parl * A_paral <<
1719 402
1720 } << 403 leap:
1721 else <<
1722 { // incident ray pe <<
1723 fNewMomentum = fOldMomentum; <<
1724 fNewPolarization = fOldPolarization <<
1725 } <<
1726 } <<
1727 } <<
1728 404
1729 fOldMomentum = fNewMomentum.unit(); << 405 G4bool Through = false;
1730 fOldPolarization = fNewPolarization.unit( << 406 G4bool Done = false;
1731 if ((fStatus == CoatedDielectricFrustrate <<
1732 (fStatus == CoatedDielectricRefractio <<
1733 { <<
1734 done = (fNewMomentum * fGlobalNormal <= <<
1735 } <<
1736 else <<
1737 { <<
1738 done = (fNewMomentum * fGlobalNormal >= <<
1739 } <<
1740 407
1741 } while (!done); << 408 do {
>> 409
>> 410 if (Through) {
>> 411 Swap = !Swap;
>> 412 Through = false;
>> 413 theGlobalNormal = -theGlobalNormal;
>> 414 G4Swap(Material1,Material2);
>> 415 G4Swap(&Rindex1,&Rindex2);
>> 416 }
>> 417
>> 418 if ( theFinish == ground || theFinish == groundbackpainted ) {
>> 419 theFacetNormal =
>> 420 GetFacetNormal(OldMomentum,theGlobalNormal);
>> 421 }
>> 422 else {
>> 423 theFacetNormal = theGlobalNormal;
>> 424 }
>> 425
>> 426 G4double PdotN = OldMomentum * theFacetNormal;
>> 427 G4double EdotN = OldPolarization * theFacetNormal;
>> 428
>> 429 cost1 = - PdotN;
>> 430 if (abs(cost1) < 1.0-kCarTolerance){
>> 431 sint1 = sqrt(1-cost1*cost1);
>> 432 sint2 = sint1*Rindex1/Rindex2; // *** Snell's Law ***
>> 433 }
>> 434 else {
>> 435 sint1 = 0.0;
>> 436 sint2 = 0.0;
>> 437 }
>> 438
>> 439 if (sint2 >= 1.0) {
>> 440
>> 441 // Simulate total internal reflection
>> 442
>> 443 if (Swap) Swap = !Swap;
>> 444
>> 445 theStatus = TotalInternalReflection;
>> 446
>> 447 if ( theModel == unified && theFinish != polished )
>> 448 ChooseReflection();
>> 449
>> 450 if ( theStatus == LambertianReflection ) {
>> 451 DoReflection();
>> 452 }
>> 453 else if ( theStatus == BackScattering ) {
>> 454 NewMomentum = -OldMomentum;
>> 455 NewPolarization = -OldPolarization;
>> 456 }
>> 457 else {
>> 458
>> 459 PdotN = OldMomentum * theFacetNormal;
>> 460 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
>> 461 EdotN = OldPolarization * theFacetNormal;
>> 462 NewPolarization = -OldPolarization + (2.*EdotN)*theFacetNormal;
>> 463
>> 464 }
>> 465 }
>> 466 else if (sint2 < 1.0) {
>> 467
>> 468 // Calculate amplitude for transmission (Q = P x N)
>> 469
>> 470 if (cost1 > 0.0) {
>> 471 cost2 = sqrt(1-sint2*sint2);
>> 472 }
>> 473 else {
>> 474 cost2 = -sqrt(1-sint2*sint2);
>> 475 }
>> 476
>> 477 G4ThreeVector A_trans, Atrans, E1pp, E1pl;
>> 478 G4double E1_perp, E1_parl;
>> 479
>> 480 if (sint1 > 0.0) {
>> 481 A_trans = OldMomentum.cross(theFacetNormal);
>> 482 Atrans = A_trans.unit();
>> 483 E1_perp = OldPolarization * Atrans;
>> 484 E1pp = E1_perp * Atrans;
>> 485 E1pl = OldPolarization - E1pp;
>> 486 E1_parl = E1pl.mag();
>> 487 }
>> 488 else {
>> 489 A_trans = OldPolarization;
>> 490 // Here we Follow Jackson's conventions and we set the
>> 491 // parallel component = 1 in case of a ray perpendicular
>> 492 // to the surface
>> 493 E1_perp = 0.0;
>> 494 E1_parl = 1.0;
>> 495 }
>> 496
>> 497 G4double E2_perp, E2_parl, E2_total, TransCoeff;
>> 498
>> 499 if (cost1 != 0.0) {
>> 500 G4double s1 = Rindex1*cost1;
>> 501 E2_perp = 2.*s1*E1_perp/(Rindex1*cost1+Rindex2*cost2);
>> 502 E2_parl = 2.*s1*E1_parl/(Rindex2*cost1+Rindex1*cost2);
>> 503 E2_total = E2_perp*E2_perp + E2_parl*E2_parl;
>> 504 G4double s2 = Rindex2*cost2*E2_total;
>> 505 TransCoeff = s2/s1;
>> 506 }
>> 507 else {
>> 508 TransCoeff = 0.0;
>> 509 }
>> 510
>> 511 G4ThreeVector Refracted, Deflected;
>> 512 G4double E2_abs, C_parl, C_perp;
>> 513
>> 514 if ( !G4BooleanRand(TransCoeff) ) {
>> 515
>> 516 // Simulate reflection
>> 517
>> 518 if (Swap) Swap = !Swap;
>> 519
>> 520 theStatus = FresnelReflection;
>> 521 if ( theModel == unified && theFinish != polished )
>> 522 ChooseReflection();
>> 523
>> 524 if ( theStatus == LambertianReflection ) {
>> 525 DoReflection();
>> 526 }
>> 527 else if ( theStatus == BackScattering ) {
>> 528 NewMomentum = -OldMomentum;
>> 529 NewPolarization = -OldPolarization;
>> 530 }
>> 531 else {
>> 532
>> 533 PdotN = OldMomentum * theFacetNormal;
>> 534 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
>> 535
>> 536 if (sint1 > 0.0) { // incident ray oblique
>> 537
>> 538 E2_parl = Rindex2*E2_parl/Rindex1 - E1_parl;
>> 539 E2_perp = E2_perp - E1_perp;
>> 540 E2_total = E2_perp*E2_perp + E2_parl*E2_parl;
>> 541 Refracted = theFacetNormal + PdotN * NewMomentum;
>> 542 E2_abs = sqrt(E2_total);
>> 543 C_parl = E2_parl/E2_abs;
>> 544 C_perp = E2_perp/E2_abs;
>> 545
>> 546 NewPolarization = C_parl*Refracted - C_perp*A_trans;
>> 547
>> 548 }
>> 549
>> 550 else if (Rindex2 > Rindex1) { // incident ray perpendicular
>> 551
>> 552 NewPolarization = - OldPolarization;
>> 553
>> 554 }
>> 555 }
>> 556 }
>> 557 else { // photon gets transmitted
>> 558
>> 559 // Simulate transmission/refraction
>> 560
>> 561 Inside = !Inside;
>> 562 Through = true;
>> 563 theStatus = FresnelRefraction;
>> 564
>> 565 if (sint1 > 0.0) { // incident ray oblique
>> 566
>> 567 G4double alpha = cost1 - cost2*(Rindex2/Rindex1);
>> 568 Deflected = OldMomentum + alpha*theFacetNormal;
>> 569 NewMomentum = Deflected.unit();
>> 570 PdotN = -cost2;
>> 571 Refracted = theFacetNormal - PdotN*NewMomentum;
>> 572 E2_abs = sqrt(E2_total);
>> 573 C_parl = E2_parl/E2_abs;
>> 574 C_perp = E2_perp/E2_abs;
>> 575 NewPolarization = C_parl*Refracted + C_perp*A_trans;
>> 576
>> 577 }
>> 578 else { // incident ray perpendicular
>> 579
>> 580 NewMomentum = OldMomentum;
>> 581 NewPolarization = OldPolarization;
>> 582
>> 583 }
>> 584 }
>> 585 }
>> 586
>> 587 OldMomentum = NewMomentum;
>> 588 OldPolarization = NewPolarization;
>> 589
>> 590 if (theStatus == FresnelRefraction) {
>> 591 Done = (NewMomentum * theGlobalNormal <= 0.0);
>> 592 }
>> 593 else {
>> 594 Done = (NewMomentum * theGlobalNormal >= 0.0);
>> 595 }
>> 596
>> 597 } while (!Done);
>> 598
>> 599 if (Inside && !Swap) {
>> 600 if( theFinish == polishedbackpainted ||
>> 601 theFinish == groundbackpainted ) {
>> 602 if( !G4BooleanRand(theReflectivity) ) {
>> 603 DoAbsorption();
>> 604 }
>> 605 else {
>> 606 if (theStatus != FresnelRefraction ) {
>> 607 theGlobalNormal = -theGlobalNormal;
>> 608 }
>> 609 else {
>> 610 Swap = !Swap;
>> 611 G4Swap(Material1,Material2);
>> 612 G4Swap(&Rindex1,&Rindex2);
>> 613 }
>> 614 if ( theFinish == groundbackpainted )
>> 615 theStatus = LambertianReflection;
>> 616
>> 617 DoReflection();
>> 618
>> 619 theGlobalNormal = -theGlobalNormal;
>> 620 OldMomentum = NewMomentum;
>> 621
>> 622 goto leap;
>> 623 }
>> 624 }
>> 625 }
1742 } 626 }
1743 627
1744 //....oooOO0OOooo........oooOO0OOooo........o << 628 // GetMeanFreePath
1745 G4double G4OpBoundaryProcess::GetReflectivity << 629 // ---------------
1746 G4double E1_perp, << 630 //
1747 G4double E1_parl, << 631 G4double G4OpBoundaryProcess::GetMeanFreePath(const G4Track& ,
1748 G4double wavelength, G4dou << 632 G4double ,
1749 G4complex Reflectivity, Reflectivity_TE, Re << 633 G4ForceCondition* condition)
1750 G4double gammaTL, costTL; << 634 {
1751 << 635 *condition = Forced;
1752 G4complex i(0, 1); <<
1753 G4complex rTM, rTE; <<
1754 G4complex r1toTL, rTLto2; <<
1755 G4double k0 = 2 * pi / wavelength; <<
1756 <<
1757 // Angle > Angle limit <<
1758 if (sinTL >= 1.0) { <<
1759 if (fCoatedFrustratedTransmission) { //Fr <<
1760 <<
1761 if (cost1 > 0.0) <<
1762 { <<
1763 gammaTL = std::sqrt(fRindex1 * fRinde <<
1764 fCoatedRindex * fCoatedRin <<
1765 } <<
1766 else <<
1767 { <<
1768 gammaTL = -std::sqrt(fRindex1 * fRind <<
1769 fCoatedRindex * fCoatedRin <<
1770 } <<
1771 <<
1772 // TE <<
1773 r1toTL = (fRindex1 * cost1 - i * gammaT <<
1774 rTLto2 = (i * gammaTL - fRindex2 * cost <<
1775 if (cost1 != 0.0) <<
1776 { <<
1777 rTE = (r1toTL + rTLto2 * std::exp(-2 <<
1778 (1.0 + r1toTL * rTLto2 * std <<
1779 } <<
1780 // TM <<
1781 r1toTL = (fRindex1 * i * gammaTL - fCoa <<
1782 (fRindex1 * i * gammaTL + f <<
1783 rTLto2 = (fCoatedRindex * fCoatedRindex <<
1784 (fCoatedRindex * fCoatedRin <<
1785 if (cost1 != 0.0) <<
1786 { <<
1787 rTM = (r1toTL + rTLto2 * std::exp(-2 <<
1788 (1.0 + r1toTL * rTLto2 * std <<
1789 } <<
1790 } <<
1791 else <<
1792 { //Total reflection <<
1793 return(1.); <<
1794 } <<
1795 } <<
1796 <<
1797 // Angle <= Angle limit <<
1798 else //if (sinTL < 1.0) <<
1799 { <<
1800 if (cost1 > 0.0) <<
1801 { <<
1802 costTL = std::sqrt(1. - sinTL * sinTL); <<
1803 } <<
1804 else <<
1805 { <<
1806 costTL = -std::sqrt(1. - sinTL * sinTL) <<
1807 } <<
1808 // TE <<
1809 r1toTL = (fRindex1 * cost1 - fCoatedRinde <<
1810 rTLto2 = (fCoatedRindex * costTL - fRinde <<
1811 if (cost1 != 0.0) <<
1812 { <<
1813 rTE = (r1toTL + rTLto2 * std::exp(2.0 * <<
1814 (1.0 + r1toTL * rTLto2 * std::exp <<
1815 } <<
1816 // TM <<
1817 r1toTL = (fRindex1 * costTL - fCoatedRind <<
1818 rTLto2 = (fCoatedRindex * cost2 - fRindex <<
1819 if (cost1 != 0.0) <<
1820 { <<
1821 rTM = (r1toTL + rTLto2 * std::exp(2.0 * <<
1822 (1.0 + r1toTL * rTLto2 * std::exp <<
1823 } <<
1824 } <<
1825 <<
1826 Reflectivity_TE = (rTE * conj(rTE)) * (E1_p <<
1827 Reflectivity_TM = (rTM * conj(rTM)) * (E1_p <<
1828 Reflectivity = Reflectivity_TE + Reflectivi <<
1829 636
1830 return real(Reflectivity); << 637 return DBL_MAX;
1831 } 638 }
1832 639