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25 // 25 //
26 ////////////////////////////////////////////// 26 ////////////////////////////////////////////////////////////////////////
27 // Optical Photon Boundary Process Class Imple 27 // Optical Photon Boundary Process Class Implementation
28 ////////////////////////////////////////////// 28 ////////////////////////////////////////////////////////////////////////
29 // 29 //
30 // File: G4OpBoundaryProcess.cc 30 // File: G4OpBoundaryProcess.cc
31 // Description: Discrete Process -- reflection 31 // Description: Discrete Process -- reflection/refraction at
32 // optical in 32 // optical interfaces
33 // Version: 1.1 33 // Version: 1.1
34 // Created: 1997-06-18 34 // Created: 1997-06-18
35 // Modified: 1998-05-25 - Correct parallel 35 // Modified: 1998-05-25 - Correct parallel component of polarization
36 // (thanks to: Stefa 36 // (thanks to: Stefano Magni + Giovanni Pieri)
37 // 1998-05-28 - NULL Rindex point 37 // 1998-05-28 - NULL Rindex pointer before reuse
38 // (thanks to: Stefa 38 // (thanks to: Stefano Magni)
39 // 1998-06-11 - delete *sint1 in 39 // 1998-06-11 - delete *sint1 in oblique reflection
40 // (thanks to: Giova 40 // (thanks to: Giovanni Pieri)
41 // 1998-06-19 - move from GetLoca << 41 // 1998-06-19 - move from GetLocalExitNormal() to the new
42 // method: GetLocalE 42 // method: GetLocalExitNormal(&valid) to get
43 // the surface norma 43 // the surface normal in all cases
44 // 1998-11-07 - NULL OpticalSurfa 44 // 1998-11-07 - NULL OpticalSurface pointer before use
45 // comparison not sh 45 // comparison not sharp for: std::abs(cost1) < 1.0
46 // remove sin1, sin2 46 // remove sin1, sin2 in lines 556,567
47 // (thanks to Stefan 47 // (thanks to Stefano Magni)
48 // 1999-10-10 - Accommodate chang 48 // 1999-10-10 - Accommodate changes done in DoAbsorption by
49 // changing logic in 49 // changing logic in DielectricMetal
50 // 2001-10-18 - avoid Linux (gcc- 50 // 2001-10-18 - avoid Linux (gcc-2.95.2) warning about variables
51 // might be used uni 51 // might be used uninitialized in this function
52 // moved E2_perp, E2 52 // moved E2_perp, E2_parl and E2_total out of 'if'
53 // 2003-11-27 - Modified line 168 53 // 2003-11-27 - Modified line 168-9 to reflect changes made to
54 // G4OpticalSurface 54 // G4OpticalSurface class ( by Fan Lei)
55 // 2004-02-02 - Set theStatus = U 55 // 2004-02-02 - Set theStatus = Undefined at start of DoIt
56 // 2005-07-28 - add G4ProcessType 56 // 2005-07-28 - add G4ProcessType to constructor
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 // 57 //
71 // Author: Peter Gumplinger 58 // Author: Peter Gumplinger
72 // adopted from work by Werner Keil - April 59 // adopted from work by Werner Keil - April 2/96
>> 60 // mail: gum@triumf.ca
73 // 61 //
74 ////////////////////////////////////////////// 62 ////////////////////////////////////////////////////////////////////////
75 63
>> 64 #include "G4ios.hh"
76 #include "G4OpBoundaryProcess.hh" 65 #include "G4OpBoundaryProcess.hh"
77 66
78 #include "G4ios.hh" << 67 /////////////////////////
79 #include "G4GeometryTolerance.hh" << 68 // Class Implementation
80 #include "G4LogicalBorderSurface.hh" << 69 /////////////////////////
81 #include "G4LogicalSkinSurface.hh" << 70
82 #include "G4OpProcessSubType.hh" << 71 //////////////
83 #include "G4OpticalParameters.hh" << 72 // Operators
84 #include "G4ParallelWorldProcess.hh" << 73 //////////////
85 #include "G4PhysicalConstants.hh" << 74
86 #include "G4SystemOfUnits.hh" << 75 // G4OpBoundaryProcess::operator=(const G4OpBoundaryProcess &right)
87 #include "G4TransportationManager.hh" << 76 // {
88 #include "G4VSensitiveDetector.hh" << 77 // }
>> 78
>> 79 /////////////////
>> 80 // Constructors
>> 81 /////////////////
89 82
90 //....oooOO0OOooo........oooOO0OOooo........oo <<
91 G4OpBoundaryProcess::G4OpBoundaryProcess(const 83 G4OpBoundaryProcess::G4OpBoundaryProcess(const G4String& processName,
92 G4Pro << 84 G4ProcessType type)
93 : G4VDiscreteProcess(processName, ptype) << 85 : G4VDiscreteProcess(processName, type)
94 { 86 {
95 Initialise(); << 87 if ( verboseLevel > 0) {
>> 88 G4cout << GetProcessName() << " is created " << G4endl;
>> 89 }
>> 90
>> 91 theStatus = Undefined;
>> 92 theModel = glisur;
>> 93 theFinish = polished;
>> 94 theReflectivity = 1.;
>> 95 theEfficiency = 0.;
>> 96
>> 97 prob_sl = 0.;
>> 98 prob_ss = 0.;
>> 99 prob_bs = 0.;
96 100
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 } 101 }
127 102
128 //....oooOO0OOooo........oooOO0OOooo........oo << 103 // G4OpBoundaryProcess::G4OpBoundaryProcess(const G4OpBoundaryProcess &right)
129 G4OpBoundaryProcess::~G4OpBoundaryProcess() = << 104 // {
>> 105 // }
130 106
131 //....oooOO0OOooo........oooOO0OOooo........oo << 107 ////////////////
132 void G4OpBoundaryProcess::PreparePhysicsTable( << 108 // Destructors
133 { << 109 ////////////////
134 Initialise(); <<
135 } <<
136 110
137 //....oooOO0OOooo........oooOO0OOooo........oo << 111 G4OpBoundaryProcess::~G4OpBoundaryProcess(){}
138 void G4OpBoundaryProcess::Initialise() <<
139 { <<
140 G4OpticalParameters* params = G4OpticalParam <<
141 SetInvokeSD(params->GetBoundaryInvokeSD()); <<
142 SetVerboseLevel(params->GetBoundaryVerboseLe <<
143 } <<
144 112
145 //....oooOO0OOooo........oooOO0OOooo........oo << 113 ////////////
146 G4VParticleChange* G4OpBoundaryProcess::PostSt << 114 // Methods
147 << 115 ////////////
>> 116
>> 117 // PostStepDoIt
>> 118 // ------------
>> 119 //
>> 120 G4VParticleChange*
>> 121 G4OpBoundaryProcess::PostStepDoIt(const G4Track& aTrack, const G4Step& aStep)
148 { 122 {
149 fStatus = Undefined; << 123 theStatus = 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 } <<
287 124
288 G4MaterialPropertyVector* rIndexMPV = nullpt << 125 aParticleChange.Initialize(aTrack);
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 } <<
375 126
376 fRealRIndexMPV = sMPT->GetProperty(kREAL << 127 G4StepPoint* pPreStepPoint = aStep.GetPreStepPoint();
377 fImagRIndexMPV = sMPT->GetProperty(kIMAG << 128 G4StepPoint* pPostStepPoint = aStep.GetPostStepPoint();
378 f_iTE = f_iTM = 1; << 129
379 << 130 if (pPostStepPoint->GetStepStatus() != fGeomBoundary){
380 G4MaterialPropertyVector* pp; << 131 theStatus = NotAtBoundary;
381 if((pp = sMPT->GetProperty(kREFLECTIVITY << 132 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
382 { << 133 }
383 fReflectivity = pp->Value(fPhotonMomen << 134
384 } << 135 if (aTrack.GetStepLength()<=kCarTolerance/2){
385 else if(fRealRIndexMPV && fImagRIndexMPV << 136 theStatus = StepTooSmall;
386 { << 137 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
387 CalculateReflectivity(); << 138 }
388 } << 139
389 << 140 Material1 = pPreStepPoint -> GetMaterial();
390 if((pp = sMPT->GetProperty(kEFFICIENCY)) << 141 Material2 = pPostStepPoint -> GetMaterial();
391 { << 142
392 fEfficiency = pp->Value(fPhotonMomentu << 143 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
393 } << 144
394 if((pp = sMPT->GetProperty(kTRANSMITTANC << 145 thePhotonMomentum = aParticle->GetTotalMomentum();
395 { << 146 OldMomentum = aParticle->GetMomentumDirection();
396 fTransmittance = pp->Value(fPhotonMome << 147 OldPolarization = aParticle->GetPolarization();
397 } << 148
398 if(sMPT->ConstPropertyExists(kSURFACEROU << 149 G4MaterialPropertiesTable* aMaterialPropertiesTable;
399 { << 150 G4MaterialPropertyVector* Rindex;
400 fSurfaceRoughness = sMPT->GetConstProp << 151
401 } << 152 aMaterialPropertiesTable = Material1->GetMaterialPropertiesTable();
402 << 153 if (aMaterialPropertiesTable) {
403 if(fModel == unified) << 154 Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
404 { << 155 }
405 fProb_sl = (pp = sMPT->GetProperty(kSP << 156 else {
406 ? pp->Value(fPhotonMoment << 157 theStatus = NoRINDEX;
407 : 0.; << 158 aParticleChange.ProposeTrackStatus(fStopAndKill);
408 fProb_ss = (pp = sMPT->GetProperty(kSP << 159 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
409 ? pp->Value(fPhotonMoment << 160 }
410 : 0.; << 161
411 fProb_bs = (pp = sMPT->GetProperty(kBA << 162 if (Rindex) {
412 ? pp->Value(fPhotonMoment << 163 Rindex1 = Rindex->GetProperty(thePhotonMomentum);
413 : 0.; << 164 }
414 } << 165 else {
415 } // end of if(sMPT) << 166 theStatus = NoRINDEX;
416 else if(fFinish == polishedbackpainted || << 167 aParticleChange.ProposeTrackStatus(fStopAndKill);
417 { << 168 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
418 aParticleChange.ProposeLocalEnergyDeposi << 169 }
419 aParticleChange.ProposeTrackStatus(fStop << 170
420 return G4VDiscreteProcess::PostStepDoIt( << 171 theModel = glisur;
421 } << 172 theFinish = polished;
422 } // end of if(fOpticalSurface) << 173
423 << 174 G4SurfaceType type = dielectric_dielectric;
424 // DIELECTRIC-DIELECTRIC << 175
425 if(type == dielectric_dielectric) << 176 Rindex = NULL;
426 { << 177 OpticalSurface = NULL;
427 if(fFinish == polished || fFinish == groun << 178
428 { << 179 G4LogicalSurface* Surface = G4LogicalBorderSurface::GetSurface
429 if(fMaterial1 == fMaterial2) << 180 (pPreStepPoint ->GetPhysicalVolume(),
430 { << 181 pPostStepPoint->GetPhysicalVolume());
431 fStatus = SameMaterial; << 182
432 if(verboseLevel > 1) << 183 if (Surface == NULL){
433 BoundaryProcessVerbose(); << 184 G4bool enteredDaughter=(pPostStepPoint->GetPhysicalVolume()
434 return G4VDiscreteProcess::PostStepDoI << 185 ->GetMotherLogical() ==
435 } << 186 pPreStepPoint->GetPhysicalVolume()
436 MPT = fMaterial2->GetMaterialPrope << 187 ->GetLogicalVolume());
437 rIndexMPV = nullptr; << 188 if(enteredDaughter){
438 if(MPT != nullptr) << 189 Surface = G4LogicalSkinSurface::GetSurface
439 { << 190 (pPostStepPoint->GetPhysicalVolume()->
440 rIndexMPV = MPT->GetProperty(kRINDEX); << 191 GetLogicalVolume());
441 } << 192 if(Surface == NULL)
442 if(rIndexMPV != nullptr) << 193 Surface = G4LogicalSkinSurface::GetSurface
443 { << 194 (pPreStepPoint->GetPhysicalVolume()->
444 fRindex2 = rIndexMPV->Value(fPhotonMom << 195 GetLogicalVolume());
445 } << 196 }
446 else << 197 else{
447 { << 198 Surface = G4LogicalSkinSurface::GetSurface
448 fStatus = NoRINDEX; << 199 (pPreStepPoint->GetPhysicalVolume()->
449 if(verboseLevel > 1) << 200 GetLogicalVolume());
450 BoundaryProcessVerbose(); << 201 if(Surface == NULL)
451 aParticleChange.ProposeLocalEnergyDepo << 202 Surface = G4LogicalSkinSurface::GetSurface
452 aParticleChange.ProposeTrackStatus(fSt << 203 (pPostStepPoint->GetPhysicalVolume()->
453 return G4VDiscreteProcess::PostStepDoI << 204 GetLogicalVolume());
454 } << 205 }
455 } << 206 }
456 if(fFinish == polishedbackpainted || fFini << 207
457 { << 208 // if (Surface) OpticalSurface = dynamic_cast <G4OpticalSurface*> (Surface->GetSurfaceProperty());
458 DielectricDielectric(); << 209 if (Surface) OpticalSurface = (G4OpticalSurface*) Surface->GetSurfaceProperty();
459 } << 210
460 else << 211 if (OpticalSurface) {
461 { << 212
462 G4double rand = G4UniformRand(); << 213 type = OpticalSurface->GetType();
463 if(rand > fReflectivity + fTransmittance << 214 theModel = OpticalSurface->GetModel();
464 { << 215 theFinish = OpticalSurface->GetFinish();
465 DoAbsorption(); << 216
466 } << 217 aMaterialPropertiesTable = OpticalSurface->
467 else if(rand > fReflectivity) << 218 GetMaterialPropertiesTable();
468 { << 219
469 fStatus = Transmission; << 220 if (aMaterialPropertiesTable) {
470 fNewMomentum = fOldMomentum; << 221
471 fNewPolarization = fOldPolarization; << 222 if (theFinish == polishedbackpainted ||
472 } << 223 theFinish == groundbackpainted ) {
473 else << 224 Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
474 { << 225 if (Rindex) {
475 if(fFinish == polishedfrontpainted) << 226 Rindex2 = Rindex->GetProperty(thePhotonMomentum);
476 { << 227 }
477 DoReflection(); << 228 else {
478 } << 229 theStatus = NoRINDEX;
479 else if(fFinish == groundfrontpainted) << 230 aParticleChange.ProposeTrackStatus(fStopAndKill);
480 { << 231 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
481 fStatus = LambertianReflection; << 232 }
482 DoReflection(); << 233 }
483 } << 234
484 else << 235 G4MaterialPropertyVector* PropertyPointer;
485 { << 236
486 DielectricDielectric(); << 237 PropertyPointer =
487 } << 238 aMaterialPropertiesTable->GetProperty("REFLECTIVITY");
488 } << 239 if (PropertyPointer) {
489 } << 240 theReflectivity =
490 } << 241 PropertyPointer->GetProperty(thePhotonMomentum);
491 else if(type == dielectric_metal) << 242 } else {
492 { << 243 theReflectivity = 1.0;
493 DielectricMetal(); << 244 }
494 } << 245
495 else if(type == dielectric_LUT) << 246 PropertyPointer =
496 { << 247 aMaterialPropertiesTable->GetProperty("EFFICIENCY");
497 DielectricLUT(); << 248 if (PropertyPointer) {
498 } << 249 theEfficiency =
499 else if(type == dielectric_LUTDAVIS) << 250 PropertyPointer->GetProperty(thePhotonMomentum);
500 { << 251 } else {
501 DielectricLUTDAVIS(); << 252 theEfficiency = 0.0;
502 } << 253 }
503 else if(type == dielectric_dichroic) << 254
504 { << 255 if ( theModel == unified ) {
505 DielectricDichroic(); << 256 PropertyPointer =
506 } << 257 aMaterialPropertiesTable->GetProperty("SPECULARLOBECONSTANT");
507 else if(type == coated) << 258 if (PropertyPointer) {
508 { << 259 prob_sl =
509 CoatedDielectricDielectric(); << 260 PropertyPointer->GetProperty(thePhotonMomentum);
510 } << 261 } else {
511 else << 262 prob_sl = 0.0;
512 { << 263 }
513 if(fNumBdryTypeWarnings <= 10) << 264
514 { << 265 PropertyPointer =
515 ++fNumBdryTypeWarnings; << 266 aMaterialPropertiesTable->GetProperty("SPECULARSPIKECONSTANT");
516 if(verboseLevel > 0) << 267 if (PropertyPointer) {
517 { << 268 prob_ss =
518 G4ExceptionDescription ed; << 269 PropertyPointer->GetProperty(thePhotonMomentum);
519 ed << " PostStepDoIt(): Illegal bounda << 270 } else {
520 if(fNumBdryTypeWarnings == 10) << 271 prob_ss = 0.0;
521 { << 272 }
522 ed << "** Boundary type warnings sto << 273
>> 274 PropertyPointer =
>> 275 aMaterialPropertiesTable->GetProperty("BACKSCATTERCONSTANT");
>> 276 if (PropertyPointer) {
>> 277 prob_bs =
>> 278 PropertyPointer->GetProperty(thePhotonMomentum);
>> 279 } else {
>> 280 prob_bs = 0.0;
>> 281 }
>> 282 }
>> 283 }
>> 284 else if (theFinish == polishedbackpainted ||
>> 285 theFinish == groundbackpainted ) {
>> 286 aParticleChange.ProposeTrackStatus(fStopAndKill);
>> 287 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 288 }
>> 289 }
>> 290
>> 291 if (type == dielectric_dielectric ) {
>> 292 if (theFinish == polished || theFinish == ground ) {
>> 293
>> 294 if (Material1 == Material2){
>> 295 theStatus = SameMaterial;
>> 296 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 297 }
>> 298 aMaterialPropertiesTable =
>> 299 Material2->GetMaterialPropertiesTable();
>> 300 if (aMaterialPropertiesTable)
>> 301 Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
>> 302 if (Rindex) {
>> 303 Rindex2 = Rindex->GetProperty(thePhotonMomentum);
>> 304 }
>> 305 else {
>> 306 theStatus = NoRINDEX;
>> 307 aParticleChange.ProposeTrackStatus(fStopAndKill);
>> 308 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
>> 309 }
>> 310 }
>> 311 }
>> 312
>> 313 if ( verboseLevel > 0 ) {
>> 314 G4cout << " Photon at Boundary! " << G4endl;
>> 315 G4cout << " Old Momentum Direction: " << OldMomentum << G4endl;
>> 316 G4cout << " Old Polarization: " << OldPolarization << G4endl;
>> 317 }
>> 318
>> 319 G4ThreeVector theGlobalPoint = pPostStepPoint->GetPosition();
>> 320
>> 321 G4Navigator* theNavigator =
>> 322 G4TransportationManager::GetTransportationManager()->
>> 323 GetNavigatorForTracking();
>> 324
>> 325 G4ThreeVector theLocalPoint = theNavigator->
>> 326 GetGlobalToLocalTransform().
>> 327 TransformPoint(theGlobalPoint);
>> 328
>> 329 G4ThreeVector theLocalNormal; // Normal points back into volume
>> 330
>> 331 G4bool valid;
>> 332 theLocalNormal = theNavigator->GetLocalExitNormal(&valid);
>> 333
>> 334 if (valid) {
>> 335 theLocalNormal = -theLocalNormal;
>> 336 }
>> 337 else {
>> 338 G4cerr << " G4OpBoundaryProcess/PostStepDoIt(): "
>> 339 << " The Navigator reports that it returned an invalid normal"
>> 340 << G4endl;
>> 341 }
>> 342
>> 343 theGlobalNormal = theNavigator->GetLocalToGlobalTransform().
>> 344 TransformAxis(theLocalNormal);
>> 345 if (OldMomentum * theGlobalNormal > 0.0) {
>> 346 #ifdef G4DEBUG_OPTICAL
>> 347 G4cerr << " G4OpBoundaryProcess/PostStepDoIt(): "
>> 348 << " theGlobalNormal points the wrong direction "
>> 349 << G4endl;
>> 350 #endif
>> 351 theGlobalNormal = -theGlobalNormal;
523 } 352 }
524 G4Exception("G4OpBoundaryProcess", "Op << 353 if (type == dielectric_metal) {
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 } <<
563 354
564 //....oooOO0OOooo........oooOO0OOooo........oo << 355 DielectricMetal();
565 void G4OpBoundaryProcess::BoundaryProcessVerbo <<
566 { <<
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 <<
655 G4cout << " ***" << G4endl; <<
656 } <<
657 356
658 //....oooOO0OOooo........oooOO0OOooo........oo << 357 }
659 G4ThreeVector G4OpBoundaryProcess::GetFacetNor << 358 else if (type == dielectric_dielectric) {
660 const G4ThreeVector& momentum, const G4Three <<
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 } <<
722 359
723 //....oooOO0OOooo........oooOO0OOooo........oo << 360 if ( theFinish == polishedfrontpainted ||
724 void G4OpBoundaryProcess::DielectricMetal() << 361 theFinish == groundfrontpainted ) {
725 { << 362 if( !G4BooleanRand(theReflectivity) ) {
726 G4int n = 0; << 363 DoAbsorption();
727 G4double rand; << 364 }
728 G4ThreeVector A_trans; << 365 else {
729 << 366 if ( theFinish == groundfrontpainted )
730 do << 367 theStatus = LambertianReflection;
731 { << 368 DoReflection();
732 ++n; << 369 }
733 rand = G4UniformRand(); << 370 }
734 if(rand > fReflectivity && n == 1) << 371 else {
735 { << 372 DielectricDielectric();
736 if(rand > fReflectivity + fTransmittance << 373 }
737 { << 374 }
738 DoAbsorption(); << 375 else {
739 } << 376
740 else << 377 G4cerr << " Error: G4BoundaryProcess: illegal boundary type " << G4endl;
741 { << 378 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
742 fStatus = Transmission; << 379
743 fNewMomentum = fOldMomentum; << 380 }
744 fNewPolarization = fOldPolarization; << 381
745 } << 382 NewMomentum = NewMomentum.unit();
746 break; << 383 NewPolarization = NewPolarization.unit();
747 } << 384
748 else << 385 if ( verboseLevel > 0) {
749 { << 386 G4cout << " New Momentum Direction: " << NewMomentum << G4endl;
750 if(fRealRIndexMPV && fImagRIndexMPV) << 387 G4cout << " New Polarization: " << NewPolarization << G4endl;
751 { << 388 if ( theStatus == Undefined )
752 if(n > 1) << 389 G4cout << " *** Undefined *** " << G4endl;
753 { << 390 if ( theStatus == FresnelRefraction )
754 CalculateReflectivity(); << 391 G4cout << " *** FresnelRefraction *** " << G4endl;
755 if(!G4BooleanRand(fReflectivity)) << 392 if ( theStatus == FresnelReflection )
756 { << 393 G4cout << " *** FresnelReflection *** " << G4endl;
757 DoAbsorption(); << 394 if ( theStatus == TotalInternalReflection )
758 break; << 395 G4cout << " *** TotalInternalReflection *** " << G4endl;
759 } << 396 if ( theStatus == LambertianReflection )
760 } << 397 G4cout << " *** LambertianReflection *** " << G4endl;
761 } << 398 if ( theStatus == LobeReflection )
762 if(fModel == glisur || fFinish == polish << 399 G4cout << " *** LobeReflection *** " << G4endl;
763 { << 400 if ( theStatus == SpikeReflection )
764 DoReflection(); << 401 G4cout << " *** SpikeReflection *** " << G4endl;
765 } << 402 if ( theStatus == BackScattering )
766 else << 403 G4cout << " *** BackScattering *** " << G4endl;
767 { << 404 if ( theStatus == Absorption )
768 if(n == 1) << 405 G4cout << " *** Absorption *** " << G4endl;
769 ChooseReflection(); << 406 if ( theStatus == Detection )
770 if(fStatus == LambertianReflection) << 407 G4cout << " *** Detection *** " << G4endl;
771 { << 408 if ( theStatus == NotAtBoundary )
772 DoReflection(); << 409 G4cout << " *** NotAtBoundary *** " << G4endl;
773 } << 410 if ( theStatus == SameMaterial )
774 else if(fStatus == BackScattering) << 411 G4cout << " *** SameMaterial *** " << G4endl;
775 { << 412 if ( theStatus == StepTooSmall )
776 fNewMomentum = -fOldMomentum; << 413 G4cout << " *** StepTooSmall *** " << G4endl;
777 fNewPolarization = -fOldPolarization << 414 if ( theStatus == NoRINDEX )
778 } << 415 G4cout << " *** NoRINDEX *** " << G4endl;
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 } 416 }
811 } <<
812 fOldMomentum = fNewMomentum; <<
813 fOldPolarization = fNewPolarization; <<
814 } <<
815 // Loop checking, 13-Aug-2015, Peter Gumpl <<
816 } while(fNewMomentum * fGlobalNormal < 0.0); <<
817 } <<
818 417
819 //....oooOO0OOooo........oooOO0OOooo........oo << 418 aParticleChange.ProposeMomentumDirection(NewMomentum);
820 void G4OpBoundaryProcess::DielectricLUT() << 419 aParticleChange.ProposePolarization(NewPolarization);
821 { <<
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 } <<
893 420
894 //....oooOO0OOooo........oooOO0OOooo........oo << 421 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
895 void G4OpBoundaryProcess::DielectricLUTDAVIS() << 422 }
896 { <<
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 } <<
933 423
934 do << 424 G4ThreeVector
935 { << 425 G4OpBoundaryProcess::GetFacetNormal(const G4ThreeVector& Momentum,
936 random = (G4int)G4RandFlat::shootInt << 426 const G4ThreeVector& Normal ) const
937 angindex = << 427 {
938 (((random * 2) - 1)) + angleIncide << 428 G4ThreeVector FacetNormal;
939 << 429
940 azimuth = << 430 if (theModel == unified) {
941 fOpticalSurface->GetAngularDistrib << 431
942 elevation = fOpticalSurface->GetAngu << 432 /* This function code alpha to a random value taken from the
943 } while(elevation == 0. && azimuth == << 433 distribution p(alpha) = g(alpha; 0, sigma_alpha)*std::sin(alpha),
944 << 434 for alpha > 0 and alpha < 90, where g(alpha; 0, sigma_alpha)
945 sinEl = std::sin(elevation); << 435 is a gaussian distribution with mean 0 and standard deviation
946 vNorm = (fGlobalNormal.cross(fOldMomen << 436 sigma_alpha. */
947 u = vNorm.cross(fGlobalNormal) * ( << 437
948 vNorm *= (sinEl * std::sin(azimuth)); << 438 G4double alpha;
949 // fGlobalNormal shouldn't be modified << 439
950 w = (fGlobalNormal *= std:: << 440 G4double sigma_alpha = 0.0;
951 fNewMomentum = u + vNorm + w; << 441 if (OpticalSurface) sigma_alpha = OpticalSurface->GetSigmaAlpha();
952 << 442
953 // Rotate Polarization too: << 443 G4double f_max = std::min(1.0,4.*sigma_alpha);
954 fFacetNormal = (fNewMomentum - fOl << 444
955 fNewPolarization = -fOldPolarization + << 445 do {
956 << 446 do {
957 } << 447 alpha = G4RandGauss::shoot(0.0,sigma_alpha);
958 } << 448 } while (G4UniformRand()*f_max > std::sin(alpha) || alpha >= halfpi );
959 else << 449
960 { << 450 G4double phi = G4UniformRand()*twopi;
961 fStatus = LobeReflection; << 451
962 << 452 G4double SinAlpha = std::sin(alpha);
963 if(angleIncident == 0) << 453 G4double CosAlpha = std::cos(alpha);
964 { << 454 G4double SinPhi = std::sin(phi);
965 fNewMomentum = -fOldMomentum; << 455 G4double CosPhi = std::cos(phi);
966 break; << 456
967 } << 457 G4double unit_x = SinAlpha * CosPhi;
968 << 458 G4double unit_y = SinAlpha * SinPhi;
969 do << 459 G4double unit_z = CosAlpha;
970 { << 460
971 random = (G4int)G4RandFlat::shootInt << 461 FacetNormal.setX(unit_x);
972 angindex = (((random * 2) - 1)) + (ang << 462 FacetNormal.setY(unit_y);
973 << 463 FacetNormal.setZ(unit_z);
974 azimuth = fOpticalSurface->GetAngularD << 464
975 elevation = fOpticalSurface->GetAngula << 465 G4ThreeVector tmpNormal = Normal;
976 } while(elevation == 0. && azimuth == 0. << 466
977 << 467 FacetNormal.rotateUz(tmpNormal);
978 sinEl = std::sin(elevation); << 468 } while (Momentum * FacetNormal >= 0.0);
979 vNorm = (fGlobalNormal.cross(fOldMomentu << 469 }
980 u = vNorm.cross(fGlobalNormal) * (si << 470 else {
981 vNorm *= (sinEl * std::sin(azimuth)); << 471
982 // fGlobalNormal shouldn't be modified h << 472 G4double polish = 1.0;
983 w = (fGlobalNormal *= std::cos(elevation << 473 if (OpticalSurface) polish = OpticalSurface->GetPolish();
984 << 474
985 fNewMomentum = u + vNorm + w; << 475 if (polish < 1.0) {
986 << 476 do {
987 // Rotate Polarization too: (needs revis << 477 G4ThreeVector smear;
988 fNewPolarization = fOldPolarization; << 478 do {
989 } << 479 smear.setX(2.*G4UniformRand()-1.0);
990 } while(fNewMomentum * fGlobalNormal <= 0.0) << 480 smear.setY(2.*G4UniformRand()-1.0);
>> 481 smear.setZ(2.*G4UniformRand()-1.0);
>> 482 } while (smear.mag()>1.0);
>> 483 smear = (1.-polish) * smear;
>> 484 FacetNormal = Normal + smear;
>> 485 } while (Momentum * FacetNormal >= 0.0);
>> 486 FacetNormal = FacetNormal.unit();
>> 487 }
>> 488 else {
>> 489 FacetNormal = Normal;
>> 490 }
>> 491 }
>> 492 return FacetNormal;
991 } 493 }
992 494
993 //....oooOO0OOooo........oooOO0OOooo........oo << 495 void G4OpBoundaryProcess::DielectricMetal()
994 void G4OpBoundaryProcess::DielectricDichroic() <<
995 { 496 {
996 // Calculate Angle between Normal and Photon << 497 G4int n = 0;
997 G4double anglePhotonToNormal = fOldMomentum. <<
998 498
999 // Round it to closest integer << 499 do {
1000 G4double angleIncident = std::floor(180. / <<
1001 500
1002 if(!fDichroicVector) << 501 n++;
1003 { <<
1004 if(fOpticalSurface) <<
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 502
1075 //....oooOO0OOooo........oooOO0OOooo........o << 503 if( !G4BooleanRand(theReflectivity) && n == 1 ) {
1076 void G4OpBoundaryProcess::DielectricDielectri <<
1077 { <<
1078 G4bool inside = false; <<
1079 G4bool swap = false; <<
1080 504
1081 if(fFinish == polished) << 505 DoAbsorption();
1082 { << 506 break;
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 507
1286 fNewPolarization = C_parl * A_paral << 508 }
1287 } << 509 else {
1288 else <<
1289 { // incident ray perpendicular <<
1290 fNewMomentum = fOldMomentum; <<
1291 fNewPolarization = fOldPolarization <<
1292 } <<
1293 } <<
1294 } <<
1295 510
1296 fOldMomentum = fNewMomentum.unit(); << 511 if ( theModel == glisur || theFinish == polished ) {
1297 fOldPolarization = fNewPolarization.unit( <<
1298 512
1299 if(fStatus == FresnelRefraction) << 513 DoReflection();
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 514
1340 DoReflection(); << 515 } else {
1341 516
1342 fGlobalNormal = -fGlobalNormal; << 517 if ( n == 1 ) ChooseReflection();
1343 fOldMomentum = fNewMomentum; << 518
>> 519 if ( theStatus == LambertianReflection ) {
>> 520 DoReflection();
>> 521 }
>> 522 else if ( theStatus == BackScattering ) {
>> 523 NewMomentum = -OldMomentum;
>> 524 NewPolarization = -OldPolarization;
>> 525 }
>> 526 else {
1344 527
1345 goto leap; << 528 if(theStatus==LobeReflection)theFacetNormal =
1346 } << 529 GetFacetNormal(OldMomentum,theGlobalNormal);
1347 } <<
1348 } <<
1349 } <<
1350 530
1351 //....oooOO0OOooo........oooOO0OOooo........o << 531 G4double PdotN = OldMomentum * theFacetNormal;
1352 G4double G4OpBoundaryProcess::GetMeanFreePath << 532 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
1353 << 533 G4double EdotN = OldPolarization * theFacetNormal;
1354 { << 534 NewPolarization = -OldPolarization + (2.*EdotN)*theFacetNormal;
1355 *condition = Forced; << 535 }
1356 return DBL_MAX; <<
1357 } <<
1358 536
1359 //....oooOO0OOooo........oooOO0OOooo........o << 537 }
1360 G4double G4OpBoundaryProcess::GetIncidentAngl <<
1361 { <<
1362 return pi - std::acos(fOldMomentum * fFacet <<
1363 (fOldMomentum.mag() * <<
1364 } <<
1365 538
1366 //....oooOO0OOooo........oooOO0OOooo........o << 539 OldMomentum = NewMomentum;
1367 G4double G4OpBoundaryProcess::GetReflectivity << 540 OldPolarization = NewPolarization;
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 541
1439 return real(reflectivity); << 542 }
1440 } <<
1441 543
1442 //....oooOO0OOooo........oooOO0OOooo........o << 544 } while (NewMomentum * theGlobalNormal < 0.0);
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 } 545 }
1496 546
1497 //....oooOO0OOooo........oooOO0OOooo........o << 547 void G4OpBoundaryProcess::DielectricDielectric()
1498 G4bool G4OpBoundaryProcess::InvokeSD(const G4 <<
1499 { 548 {
1500 G4Step aStep = *pStep; << 549 G4bool Inside = false;
1501 aStep.AddTotalEnergyDeposit(fPhotonMomentum << 550 G4bool Swap = false;
1502 551
1503 G4VSensitiveDetector* sd = aStep.GetPostSte << 552 leap:
1504 if(sd != nullptr) <<
1505 return sd->Hit(&aStep); <<
1506 else <<
1507 return false; <<
1508 } <<
1509 553
1510 //....oooOO0OOooo........oooOO0OOooo........o << 554 G4bool Through = false;
1511 inline void G4OpBoundaryProcess::SetInvokeSD( << 555 G4bool Done = false;
1512 { <<
1513 fInvokeSD = flag; <<
1514 G4OpticalParameters::Instance()->SetBoundar <<
1515 } <<
1516 556
1517 //....oooOO0OOooo........oooOO0OOooo........o << 557 do {
1518 void G4OpBoundaryProcess::SetVerboseLevel(G4i << 558
1519 { << 559 if (Through) {
1520 verboseLevel = verbose; << 560 Swap = !Swap;
1521 G4OpticalParameters::Instance()->SetBoundar << 561 Through = false;
>> 562 theGlobalNormal = -theGlobalNormal;
>> 563 G4Swap(Material1,Material2);
>> 564 G4Swap(&Rindex1,&Rindex2);
>> 565 }
>> 566
>> 567 if ( theFinish == ground || theFinish == groundbackpainted ) {
>> 568 theFacetNormal =
>> 569 GetFacetNormal(OldMomentum,theGlobalNormal);
>> 570 }
>> 571 else {
>> 572 theFacetNormal = theGlobalNormal;
>> 573 }
>> 574
>> 575 G4double PdotN = OldMomentum * theFacetNormal;
>> 576 G4double EdotN = OldPolarization * theFacetNormal;
>> 577
>> 578 cost1 = - PdotN;
>> 579 if (std::abs(cost1) < 1.0-kCarTolerance){
>> 580 sint1 = std::sqrt(1.-cost1*cost1);
>> 581 sint2 = sint1*Rindex1/Rindex2; // *** Snell's Law ***
>> 582 }
>> 583 else {
>> 584 sint1 = 0.0;
>> 585 sint2 = 0.0;
>> 586 }
>> 587
>> 588 if (sint2 >= 1.0) {
>> 589
>> 590 // Simulate total internal reflection
>> 591
>> 592 if (Swap) Swap = !Swap;
>> 593
>> 594 theStatus = TotalInternalReflection;
>> 595
>> 596 if ( theModel == unified && theFinish != polished )
>> 597 ChooseReflection();
>> 598
>> 599 if ( theStatus == LambertianReflection ) {
>> 600 DoReflection();
>> 601 }
>> 602 else if ( theStatus == BackScattering ) {
>> 603 NewMomentum = -OldMomentum;
>> 604 NewPolarization = -OldPolarization;
>> 605 }
>> 606 else {
>> 607
>> 608 PdotN = OldMomentum * theFacetNormal;
>> 609 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
>> 610 EdotN = OldPolarization * theFacetNormal;
>> 611 NewPolarization = -OldPolarization + (2.*EdotN)*theFacetNormal;
>> 612
>> 613 }
>> 614 }
>> 615 else if (sint2 < 1.0) {
>> 616
>> 617 // Calculate amplitude for transmission (Q = P x N)
>> 618
>> 619 if (cost1 > 0.0) {
>> 620 cost2 = std::sqrt(1.-sint2*sint2);
>> 621 }
>> 622 else {
>> 623 cost2 = -std::sqrt(1.-sint2*sint2);
>> 624 }
>> 625
>> 626 G4ThreeVector A_trans, A_paral, E1pp, E1pl;
>> 627 G4double E1_perp, E1_parl;
>> 628
>> 629 if (sint1 > 0.0) {
>> 630 A_trans = OldMomentum.cross(theFacetNormal);
>> 631 A_trans = A_trans.unit();
>> 632 E1_perp = OldPolarization * A_trans;
>> 633 E1pp = E1_perp * A_trans;
>> 634 E1pl = OldPolarization - E1pp;
>> 635 E1_parl = E1pl.mag();
>> 636 }
>> 637 else {
>> 638 A_trans = OldPolarization;
>> 639 // Here we Follow Jackson's conventions and we set the
>> 640 // parallel component = 1 in case of a ray perpendicular
>> 641 // to the surface
>> 642 E1_perp = 0.0;
>> 643 E1_parl = 1.0;
>> 644 }
>> 645
>> 646 G4double s1 = Rindex1*cost1;
>> 647 G4double E2_perp = 2.*s1*E1_perp/(Rindex1*cost1+Rindex2*cost2);
>> 648 G4double E2_parl = 2.*s1*E1_parl/(Rindex2*cost1+Rindex1*cost2);
>> 649 G4double E2_total = E2_perp*E2_perp + E2_parl*E2_parl;
>> 650 G4double s2 = Rindex2*cost2*E2_total;
>> 651
>> 652 G4double TransCoeff;
>> 653
>> 654 if (cost1 != 0.0) {
>> 655 TransCoeff = s2/s1;
>> 656 }
>> 657 else {
>> 658 TransCoeff = 0.0;
>> 659 }
>> 660
>> 661 G4double E2_abs, C_parl, C_perp;
>> 662
>> 663 if ( !G4BooleanRand(TransCoeff) ) {
>> 664
>> 665 // Simulate reflection
>> 666
>> 667 if (Swap) Swap = !Swap;
>> 668
>> 669 theStatus = FresnelReflection;
>> 670
>> 671 if ( theModel == unified && theFinish != polished )
>> 672 ChooseReflection();
>> 673
>> 674 if ( theStatus == LambertianReflection ) {
>> 675 DoReflection();
>> 676 }
>> 677 else if ( theStatus == BackScattering ) {
>> 678 NewMomentum = -OldMomentum;
>> 679 NewPolarization = -OldPolarization;
>> 680 }
>> 681 else {
>> 682
>> 683 PdotN = OldMomentum * theFacetNormal;
>> 684 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
>> 685
>> 686 if (sint1 > 0.0) { // incident ray oblique
>> 687
>> 688 E2_parl = Rindex2*E2_parl/Rindex1 - E1_parl;
>> 689 E2_perp = E2_perp - E1_perp;
>> 690 E2_total = E2_perp*E2_perp + E2_parl*E2_parl;
>> 691 A_paral = NewMomentum.cross(A_trans);
>> 692 A_paral = A_paral.unit();
>> 693 E2_abs = std::sqrt(E2_total);
>> 694 C_parl = E2_parl/E2_abs;
>> 695 C_perp = E2_perp/E2_abs;
>> 696
>> 697 NewPolarization = C_parl*A_paral + C_perp*A_trans;
>> 698
>> 699 }
>> 700
>> 701 else { // incident ray perpendicular
>> 702
>> 703 if (Rindex2 > Rindex1) {
>> 704 NewPolarization = - OldPolarization;
>> 705 }
>> 706 else {
>> 707 NewPolarization = OldPolarization;
>> 708 }
>> 709
>> 710 }
>> 711 }
>> 712 }
>> 713 else { // photon gets transmitted
>> 714
>> 715 // Simulate transmission/refraction
>> 716
>> 717 Inside = !Inside;
>> 718 Through = true;
>> 719 theStatus = FresnelRefraction;
>> 720
>> 721 if (sint1 > 0.0) { // incident ray oblique
>> 722
>> 723 G4double alpha = cost1 - cost2*(Rindex2/Rindex1);
>> 724 NewMomentum = OldMomentum + alpha*theFacetNormal;
>> 725 NewMomentum = NewMomentum.unit();
>> 726 PdotN = -cost2;
>> 727 A_paral = NewMomentum.cross(A_trans);
>> 728 A_paral = A_paral.unit();
>> 729 E2_abs = std::sqrt(E2_total);
>> 730 C_parl = E2_parl/E2_abs;
>> 731 C_perp = E2_perp/E2_abs;
>> 732
>> 733 NewPolarization = C_parl*A_paral + C_perp*A_trans;
>> 734
>> 735 }
>> 736 else { // incident ray perpendicular
>> 737
>> 738 NewMomentum = OldMomentum;
>> 739 NewPolarization = OldPolarization;
>> 740
>> 741 }
>> 742 }
>> 743 }
>> 744
>> 745 OldMomentum = NewMomentum.unit();
>> 746 OldPolarization = NewPolarization.unit();
>> 747
>> 748 if (theStatus == FresnelRefraction) {
>> 749 Done = (NewMomentum * theGlobalNormal <= 0.0);
>> 750 }
>> 751 else {
>> 752 Done = (NewMomentum * theGlobalNormal >= 0.0);
>> 753 }
>> 754
>> 755 } while (!Done);
>> 756
>> 757 if (Inside && !Swap) {
>> 758 if( theFinish == polishedbackpainted ||
>> 759 theFinish == groundbackpainted ) {
>> 760 if( !G4BooleanRand(theReflectivity) ) {
>> 761 DoAbsorption();
>> 762 }
>> 763 else {
>> 764 if (theStatus != FresnelRefraction ) {
>> 765 theGlobalNormal = -theGlobalNormal;
>> 766 }
>> 767 else {
>> 768 Swap = !Swap;
>> 769 G4Swap(Material1,Material2);
>> 770 G4Swap(&Rindex1,&Rindex2);
>> 771 }
>> 772 if ( theFinish == groundbackpainted )
>> 773 theStatus = LambertianReflection;
>> 774
>> 775 DoReflection();
>> 776
>> 777 theGlobalNormal = -theGlobalNormal;
>> 778 OldMomentum = NewMomentum;
>> 779
>> 780 goto leap;
>> 781 }
>> 782 }
>> 783 }
1522 } 784 }
1523 785
1524 //....oooOO0OOooo........oooOO0OOooo........o << 786 // GetMeanFreePath
1525 void G4OpBoundaryProcess::CoatedDielectricDie << 787 // ---------------
>> 788 //
>> 789 G4double G4OpBoundaryProcess::GetMeanFreePath(const G4Track& ,
>> 790 G4double ,
>> 791 G4ForceCondition* condition)
1526 { 792 {
1527 G4MaterialPropertyVector* pp = nullptr; << 793 *condition = Forced;
1528 <<
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 794
1707 if (fSint1 > 0.0) { // incident << 795 return DBL_MAX;
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 <<
1720 } <<
1721 else <<
1722 { // incident ray pe <<
1723 fNewMomentum = fOldMomentum; <<
1724 fNewPolarization = fOldPolarization <<
1725 } <<
1726 } <<
1727 } <<
1728 <<
1729 fOldMomentum = fNewMomentum.unit(); <<
1730 fOldPolarization = fNewPolarization.unit( <<
1731 if ((fStatus == CoatedDielectricFrustrate <<
1732 (fStatus == CoatedDielectricRefractio <<
1733 { <<
1734 done = (fNewMomentum * fGlobalNormal <= <<
1735 } <<
1736 else <<
1737 { <<
1738 done = (fNewMomentum * fGlobalNormal >= <<
1739 } <<
1740 <<
1741 } while (!done); <<
1742 } 796 }
1743 797
1744 //....oooOO0OOooo........oooOO0OOooo........o <<
1745 G4double G4OpBoundaryProcess::GetReflectivity <<
1746 G4double E1_perp, <<
1747 G4double E1_parl, <<
1748 G4double wavelength, G4dou <<
1749 G4complex Reflectivity, Reflectivity_TE, Re <<
1750 G4double gammaTL, costTL; <<
1751 <<
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 <<
1830 return real(Reflectivity); <<
1831 } <<
1832 798