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26 // 26 //
>> 27 // $Id: G4OpBoundaryProcess.hh,v 1.16 2007/10/15 21:16:24 gum Exp $
>> 28 // GEANT4 tag $Name: geant4-09-01 $
27 // 29 //
28 // << 30 //
29 ////////////////////////////////////////////// 31 ////////////////////////////////////////////////////////////////////////
30 // Optical Photon Boundary Process Class Defin 32 // Optical Photon Boundary Process Class Definition
31 ////////////////////////////////////////////// 33 ////////////////////////////////////////////////////////////////////////
32 // 34 //
33 // File: G4OpBoundaryProcess.hh 35 // File: G4OpBoundaryProcess.hh
34 // Description: Discrete Process -- reflection 36 // Description: Discrete Process -- reflection/refraction at
35 // optical in 37 // optical interfaces
36 // Version: 1.1 38 // Version: 1.1
37 // Created: 1997-06-18 39 // Created: 1997-06-18
38 // Modified: 2005-07-28 add G4ProcessType t 40 // Modified: 2005-07-28 add G4ProcessType to constructor
39 // 1999-10-29 add method and clas 41 // 1999-10-29 add method and class descriptors
40 // 1999-10-10 - Fill NewMomentum/ << 42 // 1999-10-10 - Fill NewMomentum/NewPolarization in
41 // DoAbsorption. The 43 // DoAbsorption. These members need to be
42 // filled since DoIt << 44 // filled since DoIt calls
43 // aParticleChange.S 45 // aParticleChange.SetMomentumChange etc.
44 // upon return (than 46 // upon return (thanks to: Clark McGrew)
45 // 2006-11-04 - add capability of 47 // 2006-11-04 - add capability of calculating the reflectivity
46 // off a metal surfa 48 // off a metal surface by way of a complex index
47 // of refraction - T 49 // of refraction - Thanks to Sehwook Lee and John
48 // Hauptman (Dept. o 50 // Hauptman (Dept. of Physics - Iowa State Univ.)
49 // 2009-11-10 - add capability of <<
50 // with Look-Up-Tabl <<
51 // optical reflectan <<
52 // treatments - Than <<
53 // William Moses (La <<
54 // 2013-06-01 - add the capabilit <<
55 // of a dichronic fi <<
56 // 2017-02-24 - add capability of <<
57 // with Look-Up-Tabl <<
58 // 51 //
59 // Author: Peter Gumplinger 52 // Author: Peter Gumplinger
60 // adopted from work by Werner Ke 53 // adopted from work by Werner Keil - April 2/96
>> 54 // mail: gum@triumf.ca
61 // 55 //
>> 56 // CVS version tag:
62 ////////////////////////////////////////////// 57 ////////////////////////////////////////////////////////////////////////
63 58
64 #ifndef G4OpBoundaryProcess_h 59 #ifndef G4OpBoundaryProcess_h
65 #define G4OpBoundaryProcess_h 1 60 #define G4OpBoundaryProcess_h 1
66 61
67 #include "G4OpticalPhoton.hh" << 62 /////////////
68 #include "G4OpticalSurface.hh" << 63 // Includes
69 #include "G4RandomTools.hh" << 64 /////////////
>> 65
>> 66 #include "globals.hh"
>> 67 #include "templates.hh"
>> 68 #include "geomdefs.hh"
>> 69 #include "Randomize.hh"
>> 70 #include "G4Step.hh"
70 #include "G4VDiscreteProcess.hh" 71 #include "G4VDiscreteProcess.hh"
>> 72 #include "G4DynamicParticle.hh"
>> 73 #include "G4Material.hh"
>> 74 #include "G4LogicalBorderSurface.hh"
>> 75 #include "G4LogicalSkinSurface.hh"
>> 76 #include "G4OpticalSurface.hh"
>> 77 #include "G4OpticalPhoton.hh"
>> 78 #include "G4TransportationManager.hh"
71 79
72 enum G4OpBoundaryProcessStatus << 80 // Class Description:
73 { << 81 // Discrete Process -- reflection/refraction at optical interfaces.
74 Undefined, << 82 // Class inherits publicly from G4VDiscreteProcess.
75 Transmission, << 83 // Class Description - End:
76 FresnelRefraction, << 84
77 FresnelReflection, << 85 /////////////////////
78 TotalInternalReflection, << 86 // Class Definition
79 LambertianReflection, << 87 /////////////////////
80 LobeReflection, << 88
81 SpikeReflection, << 89 enum G4OpBoundaryProcessStatus { Undefined,
82 BackScattering, << 90 FresnelRefraction, FresnelReflection,
83 Absorption, << 91 TotalInternalReflection,
84 Detection, << 92 LambertianReflection, LobeReflection,
85 NotAtBoundary, << 93 SpikeReflection, BackScattering,
86 SameMaterial, << 94 Absorption, Detection, NotAtBoundary,
87 StepTooSmall, << 95 SameMaterial, StepTooSmall, NoRINDEX };
88 NoRINDEX, <<
89 PolishedLumirrorAirReflection, <<
90 PolishedLumirrorGlueReflection, <<
91 PolishedAirReflection, <<
92 PolishedTeflonAirReflection, <<
93 PolishedTiOAirReflection, <<
94 PolishedTyvekAirReflection, <<
95 PolishedVM2000AirReflection, <<
96 PolishedVM2000GlueReflection, <<
97 EtchedLumirrorAirReflection, <<
98 EtchedLumirrorGlueReflection, <<
99 EtchedAirReflection, <<
100 EtchedTeflonAirReflection, <<
101 EtchedTiOAirReflection, <<
102 EtchedTyvekAirReflection, <<
103 EtchedVM2000AirReflection, <<
104 EtchedVM2000GlueReflection, <<
105 GroundLumirrorAirReflection, <<
106 GroundLumirrorGlueReflection, <<
107 GroundAirReflection, <<
108 GroundTeflonAirReflection, <<
109 GroundTiOAirReflection, <<
110 GroundTyvekAirReflection, <<
111 GroundVM2000AirReflection, <<
112 GroundVM2000GlueReflection, <<
113 Dichroic, <<
114 CoatedDielectricReflection, <<
115 CoatedDielectricRefraction, <<
116 CoatedDielectricFrustratedTransmission <<
117 }; <<
118 96
119 class G4OpBoundaryProcess : public G4VDiscrete 97 class G4OpBoundaryProcess : public G4VDiscreteProcess
120 { 98 {
121 public: <<
122 explicit G4OpBoundaryProcess(const G4String& <<
123 G4ProcessType t <<
124 virtual ~G4OpBoundaryProcess(); <<
125 99
126 virtual G4bool IsApplicable( << 100 private:
127 const G4ParticleDefinition& aParticleType) << 101
128 // Returns true -> 'is applicable' only for << 102 //////////////
>> 103 // Operators
>> 104 //////////////
>> 105
>> 106 // G4OpBoundaryProcess& operator=(const G4OpBoundaryProcess &right);
>> 107
>> 108 // G4OpBoundaryProcess(const G4OpBoundaryProcess &right);
129 109
130 virtual G4double GetMeanFreePath(const G4Tra << 110 public: // Without description
131 G4ForceCond <<
132 // Returns infinity; i. e. the process does <<
133 // 'Forced' condition for the DoIt to be inv <<
134 // at a boundary will any action be taken. <<
135 111
136 G4VParticleChange* PostStepDoIt(const G4Trac << 112 ////////////////////////////////
137 const G4Step << 113 // Constructors and Destructor
138 // This is the method implementing boundary << 114 ////////////////////////////////
139 115
140 virtual G4OpBoundaryProcessStatus GetStatus( << 116 G4OpBoundaryProcess(const G4String& processName = "OpBoundary",
141 // Returns the current status. << 117 G4ProcessType type = fOptical);
142 118
143 virtual void SetInvokeSD(G4bool); << 119 ~G4OpBoundaryProcess();
144 // Set flag for call to InvokeSD method. <<
145 120
146 virtual void PreparePhysicsTable(const G4Par << 121 ////////////
>> 122 // Methods
>> 123 ////////////
147 124
148 virtual void Initialise(); << 125 public: // With description
149 126
150 void SetVerboseLevel(G4int); << 127 G4bool IsApplicable(const G4ParticleDefinition& aParticleType);
>> 128 // Returns true -> 'is applicable' only for an optical photon.
151 129
152 private: << 130 G4double GetMeanFreePath(const G4Track& ,
153 G4OpBoundaryProcess(const G4OpBoundaryProces << 131 G4double ,
154 G4OpBoundaryProcess& operator=(const G4OpBou << 132 G4ForceCondition* condition);
>> 133 // Returns infinity; i. e. the process does not limit the step,
>> 134 // but sets the 'Forced' condition for the DoIt to be invoked at
>> 135 // every step. However, only at a boundary will any action be
>> 136 // taken.
155 137
156 G4bool G4BooleanRand(const G4double prob) co << 138 G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
>> 139 const G4Step& aStep);
>> 140 // This is the method implementing boundary processes.
157 141
158 G4ThreeVector GetFacetNormal(const G4ThreeVe << 142 G4OpticalSurfaceModel GetModel() const;
159 const G4ThreeVe << 143 // Returns the optical surface mode.
160 144
161 void DielectricMetal(); << 145 G4OpBoundaryProcessStatus GetStatus() const;
162 void DielectricDielectric(); << 146 // Returns the current status.
163 147
164 void DielectricLUT(); << 148 G4double GetIncidentAngle();
165 void DielectricLUTDAVIS(); << 149 // Returns the incident angle of optical photon
166 150
167 void DielectricDichroic(); << 151 G4double GetReflectivity(G4double E1_perp,
168 void CoatedDielectricDielectric(); << 152 G4double E1_parl,
>> 153 G4double incidentangle,
>> 154 G4double RealRindex,
>> 155 G4double ImaginaryRindex);
>> 156 // Returns the Reflectivity on a metalic surface
169 157
170 void ChooseReflection(); << 158 void SetModel(G4OpticalSurfaceModel model);
171 void DoAbsorption(); << 159 // Set the optical surface model to be followed
172 void DoReflection(); << 160 // (glisur || unified).
173 161
174 G4double GetIncidentAngle(); << 162 private:
175 // Returns the incident angle of optical pho <<
176 163
177 G4double GetReflectivity(G4double E1_perp, G << 164 void G4Swap(G4double* a, G4double* b) const;
178 G4double incidentan <<
179 G4double ImaginaryR <<
180 // Returns the Reflectivity on a metallic su <<
181 165
182 G4double GetReflectivityThroughThinLayer(G4d << 166 void G4Swap(G4Material* a, G4Material* b) const;
183 G4d <<
184 G4d <<
185 // Returns the Reflectivity on a coated surf <<
186 167
187 void CalculateReflectivity(); << 168 void G4VectorSwap(G4ThreeVector* vec1, G4ThreeVector* vec2) const;
188 169
189 void BoundaryProcessVerbose() const; << 170 G4bool G4BooleanRand(const G4double prob) const;
190 171
191 // Invoke SD for post step point if the phot << 172 G4ThreeVector G4IsotropicRand() const;
192 G4bool InvokeSD(const G4Step* step); <<
193 173
194 G4ThreeVector fOldMomentum; << 174 G4ThreeVector G4LambertianRand(const G4ThreeVector& normal);
195 G4ThreeVector fOldPolarization; <<
196 175
197 G4ThreeVector fNewMomentum; << 176 G4ThreeVector G4PlaneVectorRand(const G4ThreeVector& normal) const;
198 G4ThreeVector fNewPolarization; <<
199 177
200 G4ThreeVector fGlobalNormal; << 178 G4ThreeVector GetFacetNormal(const G4ThreeVector& Momentum,
201 G4ThreeVector fFacetNormal; << 179 const G4ThreeVector& Normal) const;
202 180
203 const G4Material* fMaterial1; << 181 void DielectricMetal();
204 const G4Material* fMaterial2; << 182 void DielectricDielectric();
205 183
206 G4OpticalSurface* fOpticalSurface; << 184 void ChooseReflection();
>> 185 void DoAbsorption();
>> 186 void DoReflection();
207 187
208 G4MaterialPropertyVector* fRealRIndexMPV; << 188 private:
209 G4MaterialPropertyVector* fImagRIndexMPV; <<
210 G4Physics2DVector* fDichroicVector; <<
211 189
212 G4double fPhotonMomentum; << 190 G4double thePhotonMomentum;
213 G4double fRindex1; <<
214 G4double fRindex2; <<
215 191
216 G4double fSint1; << 192 G4ThreeVector OldMomentum;
>> 193 G4ThreeVector OldPolarization;
217 194
218 G4double fReflectivity; << 195 G4ThreeVector NewMomentum;
219 G4double fEfficiency; << 196 G4ThreeVector NewPolarization;
220 G4double fTransmittance; <<
221 G4double fSurfaceRoughness; <<
222 197
223 G4double fProb_sl, fProb_ss, fProb_bs; << 198 G4ThreeVector theGlobalNormal;
224 G4double fCarTolerance; << 199 G4ThreeVector theFacetNormal;
225 200
226 // Used by CoatedDielectricDielectric() << 201 G4Material* Material1;
227 G4double fCoatedRindex, fCoatedThickness; << 202 G4Material* Material2;
228 203
229 G4OpBoundaryProcessStatus fStatus; << 204 G4OpticalSurface* OpticalSurface;
230 G4OpticalSurfaceModel fModel; <<
231 G4OpticalSurfaceFinish fFinish; <<
232 205
233 G4int f_iTE, f_iTM; << 206 G4double Rindex1;
>> 207 G4double Rindex2;
234 208
235 G4int fNumSmallStepWarnings = 0; // number o << 209 G4double cost1, cost2, sint1, sint2;
236 G4int fNumBdryTypeWarnings = 0; // number o <<
237 210
238 size_t idx_dichroicX = 0; << 211 G4OpBoundaryProcessStatus theStatus;
239 size_t idx_dichroicY = 0; <<
240 size_t idx_rindex1 = 0; <<
241 size_t idx_rindex_surface = 0; <<
242 size_t idx_reflect = 0; <<
243 size_t idx_eff = 0; <<
244 size_t idx_trans = 0; <<
245 size_t idx_lobe = 0; <<
246 size_t idx_spike = 0; <<
247 size_t idx_back = 0; <<
248 size_t idx_rindex2 = 0; <<
249 size_t idx_groupvel = 0; <<
250 size_t idx_rrindex = 0; <<
251 size_t idx_irindex = 0; <<
252 size_t idx_coatedrindex = 0; <<
253 212
254 // Used by CoatedDielectricDielectric() << 213 G4OpticalSurfaceModel theModel;
255 G4bool fCoatedFrustratedTransmission = true; <<
256 214
257 G4bool fInvokeSD; << 215 G4OpticalSurfaceFinish theFinish;
>> 216
>> 217 G4double theReflectivity;
>> 218 G4double theEfficiency;
>> 219 G4double prob_sl, prob_ss, prob_bs;
>> 220
>> 221 G4int iTE, iTM;
>> 222
>> 223 G4double kCarTolerance;
258 }; 224 };
259 225
260 //////////////////// 226 ////////////////////
261 // Inline methods 227 // Inline methods
262 //////////////////// 228 ////////////////////
263 229
264 inline G4bool G4OpBoundaryProcess::G4BooleanRa << 230 inline
>> 231 void G4OpBoundaryProcess::G4Swap(G4double* a, G4double* b) const
265 { 232 {
266 // Returns a random boolean variable with th << 233 // swaps the contents of the objects pointed
>> 234 // to by 'a' and 'b'!
>> 235
>> 236 G4double temp;
>> 237
>> 238 temp = *a;
>> 239 *a = *b;
>> 240 *b = temp;
>> 241 }
>> 242
>> 243 inline
>> 244 void G4OpBoundaryProcess::G4Swap(G4Material* a, G4Material* b) const
>> 245 {
>> 246 // ONLY swaps the pointers; i.e. what used to be pointed
>> 247 // to by 'a' is now pointed to by 'b' and vice versa!
>> 248
>> 249 G4Material* temp = a;
>> 250
>> 251 a = b;
>> 252 b = temp;
>> 253 }
>> 254
>> 255 inline
>> 256 void G4OpBoundaryProcess::G4VectorSwap(G4ThreeVector* vec1,
>> 257 G4ThreeVector* vec2) const
>> 258 {
>> 259 // swaps the contents of the objects pointed
>> 260 // to by 'vec1' and 'vec2'!
>> 261
>> 262 G4ThreeVector temp;
>> 263
>> 264 temp = *vec1;
>> 265 *vec1 = *vec2;
>> 266 *vec2 = temp;
>> 267 }
>> 268
>> 269 inline
>> 270 G4bool G4OpBoundaryProcess::G4BooleanRand(const G4double prob) const
>> 271 {
>> 272 /* Returns a random boolean variable with the specified probability */
>> 273
267 return (G4UniformRand() < prob); 274 return (G4UniformRand() < prob);
268 } 275 }
269 276
270 inline G4bool G4OpBoundaryProcess::IsApplicabl << 277 inline
271 const G4ParticleDefinition& aParticleType) << 278 G4ThreeVector G4OpBoundaryProcess::G4IsotropicRand() const
272 { 279 {
273 return (&aParticleType == G4OpticalPhoton::O << 280 /* Returns a random isotropic unit vector. */
>> 281
>> 282 G4ThreeVector vect;
>> 283 G4double len2;
>> 284
>> 285 do {
>> 286
>> 287 vect.setX(G4UniformRand() - 0.5);
>> 288 vect.setY(G4UniformRand() - 0.5);
>> 289 vect.setZ(G4UniformRand() - 0.5);
>> 290
>> 291 len2 = vect.mag2();
>> 292
>> 293 } while (len2 < 0.01 || len2 > 0.25);
>> 294
>> 295 return vect.unit();
274 } 296 }
275 297
276 inline G4OpBoundaryProcessStatus G4OpBoundaryP << 298 inline
>> 299 G4ThreeVector G4OpBoundaryProcess::
>> 300 G4LambertianRand(const G4ThreeVector& normal)
277 { 301 {
278 return fStatus; << 302 /* Returns a random lambertian unit vector. */
279 } << 303
280 << 304 G4ThreeVector vect;
281 inline void G4OpBoundaryProcess::ChooseReflect << 305 G4double ndotv;
282 { << 306
283 G4double rand = G4UniformRand(); << 307 do {
284 if(rand < fProb_ss) << 308 vect = G4IsotropicRand();
285 { << 309
286 fStatus = SpikeReflection; << 310 ndotv = normal * vect;
287 fFacetNormal = fGlobalNormal; << 311
288 } << 312 if (ndotv < 0.0) {
289 else if(rand < fProb_ss + fProb_sl) << 313 vect = -vect;
290 { << 314 ndotv = -ndotv;
291 fStatus = LobeReflection; <<
292 } <<
293 else if(rand < fProb_ss + fProb_sl + fProb_b <<
294 { <<
295 fStatus = BackScattering; <<
296 } <<
297 else <<
298 { <<
299 fStatus = LambertianReflection; <<
300 } <<
301 } <<
302 <<
303 inline void G4OpBoundaryProcess::DoAbsorption( <<
304 { <<
305 fStatus = Absorption; <<
306 <<
307 if(G4BooleanRand(fEfficiency)) <<
308 { <<
309 // EnergyDeposited =/= 0 means: photon has <<
310 fStatus = Detection; <<
311 aParticleChange.ProposeLocalEnergyDeposit( <<
312 } <<
313 else <<
314 { <<
315 aParticleChange.ProposeLocalEnergyDeposit( <<
316 } <<
317 <<
318 fNewMomentum = fOldMomentum; <<
319 fNewPolarization = fOldPolarization; <<
320 <<
321 aParticleChange.ProposeTrackStatus(fStopAndK <<
322 } <<
323 <<
324 inline void G4OpBoundaryProcess::DoReflection( <<
325 { <<
326 if(fStatus == LambertianReflection) <<
327 { <<
328 fNewMomentum = G4LambertianRand(fGlobalNor <<
329 fFacetNormal = (fNewMomentum - fOldMomentu <<
330 } <<
331 else if(fFinish == ground) <<
332 { <<
333 fStatus = LobeReflection; <<
334 if(!fRealRIndexMPV || !fImagRIndexMPV) <<
335 { <<
336 fFacetNormal = GetFacetNormal(fOldMoment <<
337 } 315 }
338 // else << 316
339 // complex ref. index to be implemented << 317 } while (!G4BooleanRand(ndotv));
340 fNewMomentum = << 318 return vect;
341 fOldMomentum - (2. * fOldMomentum * fFac << 319 }
342 } << 320
343 else << 321 inline
344 { << 322 G4ThreeVector G4OpBoundaryProcess::
345 fStatus = SpikeReflection; << 323 G4PlaneVectorRand(const G4ThreeVector& normal) const
346 fFacetNormal = fGlobalNormal; << 324
347 fNewMomentum = << 325 /* This function chooses a random vector within a plane given
348 fOldMomentum - (2. * fOldMomentum * fFac << 326 by the unit normal */
349 } << 327 {
350 fNewPolarization = << 328 G4ThreeVector vec1 = normal.orthogonal();
351 -fOldPolarization + (2. * fOldPolarization << 329
>> 330 G4ThreeVector vec2 = vec1.cross(normal);
>> 331
>> 332 G4double phi = twopi*G4UniformRand();
>> 333 G4double cosphi = std::cos(phi);
>> 334 G4double sinphi = std::sin(phi);
>> 335
>> 336 return cosphi * vec1 + sinphi * vec2;
>> 337 }
>> 338
>> 339 inline
>> 340 G4bool G4OpBoundaryProcess::IsApplicable(const G4ParticleDefinition&
>> 341 aParticleType)
>> 342 {
>> 343 return ( &aParticleType == G4OpticalPhoton::OpticalPhoton() );
>> 344 }
>> 345
>> 346 inline
>> 347 G4OpticalSurfaceModel G4OpBoundaryProcess::GetModel() const
>> 348 {
>> 349 return theModel;
>> 350 }
>> 351
>> 352 inline
>> 353 G4OpBoundaryProcessStatus G4OpBoundaryProcess::GetStatus() const
>> 354 {
>> 355 return theStatus;
>> 356 }
>> 357
>> 358 inline
>> 359 void G4OpBoundaryProcess::SetModel(G4OpticalSurfaceModel model)
>> 360 {
>> 361 theModel = model;
>> 362 }
>> 363
>> 364 inline
>> 365 void G4OpBoundaryProcess::ChooseReflection()
>> 366 {
>> 367 G4double rand = G4UniformRand();
>> 368 if ( rand >= 0.0 && rand < prob_ss ) {
>> 369 theStatus = SpikeReflection;
>> 370 theFacetNormal = theGlobalNormal;
>> 371 }
>> 372 else if ( rand >= prob_ss &&
>> 373 rand <= prob_ss+prob_sl) {
>> 374 theStatus = LobeReflection;
>> 375 }
>> 376 else if ( rand > prob_ss+prob_sl &&
>> 377 rand < prob_ss+prob_sl+prob_bs ) {
>> 378 theStatus = BackScattering;
>> 379 }
>> 380 else {
>> 381 theStatus = LambertianReflection;
>> 382 }
>> 383 }
>> 384
>> 385 inline
>> 386 void G4OpBoundaryProcess::DoAbsorption()
>> 387 {
>> 388 theStatus = Absorption;
>> 389
>> 390 if ( G4BooleanRand(theEfficiency) ) {
>> 391
>> 392 // EnergyDeposited =/= 0 means: photon has been detected
>> 393 theStatus = Detection;
>> 394 aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
>> 395 }
>> 396 else {
>> 397 aParticleChange.ProposeLocalEnergyDeposit(0.0);
>> 398 }
>> 399
>> 400 NewMomentum = OldMomentum;
>> 401 NewPolarization = OldPolarization;
>> 402
>> 403 // aParticleChange.ProposeEnergy(0.0);
>> 404 aParticleChange.ProposeTrackStatus(fStopAndKill);
>> 405 }
>> 406
>> 407 inline
>> 408 void G4OpBoundaryProcess::DoReflection()
>> 409 {
>> 410 if ( theStatus == LambertianReflection ) {
>> 411
>> 412 NewMomentum = G4LambertianRand(theGlobalNormal);
>> 413 theFacetNormal = (NewMomentum - OldMomentum).unit();
>> 414
>> 415 }
>> 416 else if ( theFinish == ground ) {
>> 417
>> 418 theStatus = LobeReflection;
>> 419 theFacetNormal = GetFacetNormal(OldMomentum,theGlobalNormal);
>> 420 G4double PdotN = OldMomentum * theFacetNormal;
>> 421 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
>> 422
>> 423 }
>> 424 else {
>> 425
>> 426 theStatus = SpikeReflection;
>> 427 theFacetNormal = theGlobalNormal;
>> 428 G4double PdotN = OldMomentum * theFacetNormal;
>> 429 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
>> 430
>> 431 }
>> 432 G4double EdotN = OldPolarization * theFacetNormal;
>> 433 NewPolarization = -OldPolarization + (2.*EdotN)*theFacetNormal;
352 } 434 }
353 435
354 #endif /* G4OpBoundaryProcess_h */ 436 #endif /* G4OpBoundaryProcess_h */
355 437