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26 // 26 //
>> 27 // $Id: G4OpBoundaryProcess.hh 104458 2017-05-31 15:54:11Z gcosmo $
27 // 28 //
28 // << 29 //
29 ////////////////////////////////////////////// 30 ////////////////////////////////////////////////////////////////////////
30 // Optical Photon Boundary Process Class Defin 31 // Optical Photon Boundary Process Class Definition
31 ////////////////////////////////////////////// 32 ////////////////////////////////////////////////////////////////////////
32 // 33 //
33 // File: G4OpBoundaryProcess.hh 34 // File: G4OpBoundaryProcess.hh
34 // Description: Discrete Process -- reflection 35 // Description: Discrete Process -- reflection/refraction at
35 // optical in 36 // optical interfaces
36 // Version: 1.1 37 // Version: 1.1
37 // Created: 1997-06-18 38 // Created: 1997-06-18
38 // Modified: 2005-07-28 add G4ProcessType t 39 // Modified: 2005-07-28 add G4ProcessType to constructor
39 // 1999-10-29 add method and clas 40 // 1999-10-29 add method and class descriptors
40 // 1999-10-10 - Fill NewMomentum/ << 41 // 1999-10-10 - Fill NewMomentum/NewPolarization in
41 // DoAbsorption. The 42 // DoAbsorption. These members need to be
42 // filled since DoIt << 43 // filled since DoIt calls
43 // aParticleChange.S 44 // aParticleChange.SetMomentumChange etc.
44 // upon return (than 45 // upon return (thanks to: Clark McGrew)
45 // 2006-11-04 - add capability of 46 // 2006-11-04 - add capability of calculating the reflectivity
46 // off a metal surfa 47 // off a metal surface by way of a complex index
47 // of refraction - T 48 // of refraction - Thanks to Sehwook Lee and John
48 // Hauptman (Dept. o 49 // Hauptman (Dept. of Physics - Iowa State Univ.)
49 // 2009-11-10 - add capability of 50 // 2009-11-10 - add capability of simulating surface reflections
50 // with Look-Up-Tabl 51 // with Look-Up-Tables (LUT) containing measured
51 // optical reflectan 52 // optical reflectance for a variety of surface
52 // treatments - Than 53 // treatments - Thanks to Martin Janecek and
53 // William Moses (La 54 // William Moses (Lawrence Berkeley National Lab.)
54 // 2013-06-01 - add the capabilit 55 // 2013-06-01 - add the capability of simulating the transmission
55 // of a dichronic fi 56 // of a dichronic filter
56 // 2017-02-24 - add capability of 57 // 2017-02-24 - add capability of simulating surface reflections
57 // with Look-Up-Tabl 58 // with Look-Up-Tables (LUT) developed in DAVIS
58 // 59 //
59 // Author: Peter Gumplinger 60 // Author: Peter Gumplinger
60 // adopted from work by Werner Ke 61 // adopted from work by Werner Keil - April 2/96
>> 62 // mail: gum@triumf.ca
61 // 63 //
62 ////////////////////////////////////////////// 64 ////////////////////////////////////////////////////////////////////////
63 65
64 #ifndef G4OpBoundaryProcess_h 66 #ifndef G4OpBoundaryProcess_h
65 #define G4OpBoundaryProcess_h 1 67 #define G4OpBoundaryProcess_h 1
66 68
67 #include "G4OpticalPhoton.hh" << 69 /////////////
68 #include "G4OpticalSurface.hh" << 70 // Includes
>> 71 /////////////
>> 72
>> 73 #include "globals.hh"
>> 74 #include "templates.hh"
>> 75 #include "geomdefs.hh"
>> 76 #include "Randomize.hh"
>> 77
69 #include "G4RandomTools.hh" 78 #include "G4RandomTools.hh"
>> 79 #include "G4RandomDirection.hh"
>> 80
>> 81 #include "G4Step.hh"
70 #include "G4VDiscreteProcess.hh" 82 #include "G4VDiscreteProcess.hh"
>> 83 #include "G4DynamicParticle.hh"
>> 84 #include "G4Material.hh"
>> 85 #include "G4LogicalBorderSurface.hh"
>> 86 #include "G4LogicalSkinSurface.hh"
>> 87 #include "G4OpticalSurface.hh"
>> 88 #include "G4OpticalPhoton.hh"
>> 89 #include "G4TransportationManager.hh"
71 90
72 enum G4OpBoundaryProcessStatus << 91 // Class Description:
73 { << 92 // Discrete Process -- reflection/refraction at optical interfaces.
74 Undefined, << 93 // Class inherits publicly from G4VDiscreteProcess.
75 Transmission, << 94 // Class Description - End:
76 FresnelRefraction, << 95
77 FresnelReflection, << 96 /////////////////////
78 TotalInternalReflection, << 97 // Class Definition
79 LambertianReflection, << 98 /////////////////////
80 LobeReflection, << 99
81 SpikeReflection, << 100 enum G4OpBoundaryProcessStatus { Undefined,
82 BackScattering, << 101 Transmission, FresnelRefraction,
83 Absorption, << 102 FresnelReflection, TotalInternalReflection,
84 Detection, << 103 LambertianReflection, LobeReflection,
85 NotAtBoundary, << 104 SpikeReflection, BackScattering,
86 SameMaterial, << 105 Absorption, Detection, NotAtBoundary,
87 StepTooSmall, << 106 SameMaterial, StepTooSmall, NoRINDEX,
88 NoRINDEX, << 107 PolishedLumirrorAirReflection,
89 PolishedLumirrorAirReflection, << 108 PolishedLumirrorGlueReflection,
90 PolishedLumirrorGlueReflection, << 109 PolishedAirReflection,
91 PolishedAirReflection, << 110 PolishedTeflonAirReflection,
92 PolishedTeflonAirReflection, << 111 PolishedTiOAirReflection,
93 PolishedTiOAirReflection, << 112 PolishedTyvekAirReflection,
94 PolishedTyvekAirReflection, << 113 PolishedVM2000AirReflection,
95 PolishedVM2000AirReflection, << 114 PolishedVM2000GlueReflection,
96 PolishedVM2000GlueReflection, << 115 EtchedLumirrorAirReflection,
97 EtchedLumirrorAirReflection, << 116 EtchedLumirrorGlueReflection,
98 EtchedLumirrorGlueReflection, << 117 EtchedAirReflection,
99 EtchedAirReflection, << 118 EtchedTeflonAirReflection,
100 EtchedTeflonAirReflection, << 119 EtchedTiOAirReflection,
101 EtchedTiOAirReflection, << 120 EtchedTyvekAirReflection,
102 EtchedTyvekAirReflection, << 121 EtchedVM2000AirReflection,
103 EtchedVM2000AirReflection, << 122 EtchedVM2000GlueReflection,
104 EtchedVM2000GlueReflection, << 123 GroundLumirrorAirReflection,
105 GroundLumirrorAirReflection, << 124 GroundLumirrorGlueReflection,
106 GroundLumirrorGlueReflection, << 125 GroundAirReflection,
107 GroundAirReflection, << 126 GroundTeflonAirReflection,
108 GroundTeflonAirReflection, << 127 GroundTiOAirReflection,
109 GroundTiOAirReflection, << 128 GroundTyvekAirReflection,
110 GroundTyvekAirReflection, << 129 GroundVM2000AirReflection,
111 GroundVM2000AirReflection, << 130 GroundVM2000GlueReflection,
112 GroundVM2000GlueReflection, << 131 Dichroic };
113 Dichroic, <<
114 CoatedDielectricReflection, <<
115 CoatedDielectricRefraction, <<
116 CoatedDielectricFrustratedTransmission <<
117 }; <<
118 132
119 class G4OpBoundaryProcess : public G4VDiscrete 133 class G4OpBoundaryProcess : public G4VDiscreteProcess
120 { 134 {
121 public: <<
122 explicit G4OpBoundaryProcess(const G4String& <<
123 G4ProcessType t <<
124 virtual ~G4OpBoundaryProcess(); <<
125 135
126 virtual G4bool IsApplicable( << 136 public:
127 const G4ParticleDefinition& aParticleType) << 137
128 // Returns true -> 'is applicable' only for << 138 ////////////////////////////////
>> 139 // Constructors and Destructor
>> 140 ////////////////////////////////
>> 141
>> 142 G4OpBoundaryProcess(const G4String& processName = "OpBoundary",
>> 143 G4ProcessType type = fOptical);
>> 144 ~G4OpBoundaryProcess();
>> 145
>> 146 private:
>> 147
>> 148 G4OpBoundaryProcess(const G4OpBoundaryProcess &right);
129 149
130 virtual G4double GetMeanFreePath(const G4Tra << 150 //////////////
131 G4ForceCond << 151 // Operators
132 // Returns infinity; i. e. the process does << 152 //////////////
133 // 'Forced' condition for the DoIt to be inv <<
134 // at a boundary will any action be taken. <<
135 153
136 G4VParticleChange* PostStepDoIt(const G4Trac << 154 G4OpBoundaryProcess& operator=(const G4OpBoundaryProcess &right);
137 const G4Step <<
138 // This is the method implementing boundary <<
139 155
140 virtual G4OpBoundaryProcessStatus GetStatus( << 156 public:
141 // Returns the current status. <<
142 157
143 virtual void SetInvokeSD(G4bool); << 158 ////////////
144 // Set flag for call to InvokeSD method. << 159 // Methods
>> 160 ////////////
145 161
146 virtual void PreparePhysicsTable(const G4Par << 162 G4bool IsApplicable(const G4ParticleDefinition& aParticleType);
>> 163 // Returns true -> 'is applicable' only for an optical photon.
147 164
148 virtual void Initialise(); << 165 G4double GetMeanFreePath(const G4Track& ,
>> 166 G4double ,
>> 167 G4ForceCondition* condition);
>> 168 // Returns infinity; i. e. the process does not limit the step,
>> 169 // but sets the 'Forced' condition for the DoIt to be invoked at
>> 170 // every step. However, only at a boundary will any action be
>> 171 // taken.
149 172
150 void SetVerboseLevel(G4int); << 173 G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
>> 174 const G4Step& aStep);
>> 175 // This is the method implementing boundary processes.
151 176
152 private: << 177 G4OpBoundaryProcessStatus GetStatus() const;
153 G4OpBoundaryProcess(const G4OpBoundaryProces << 178 // Returns the current status.
154 G4OpBoundaryProcess& operator=(const G4OpBou <<
155 179
156 G4bool G4BooleanRand(const G4double prob) co << 180 void SetInvokeSD(G4bool );
>> 181 // Set flag for call to InvokeSD method.
157 182
158 G4ThreeVector GetFacetNormal(const G4ThreeVe << 183 private:
159 const G4ThreeVe <<
160 184
161 void DielectricMetal(); << 185 G4bool G4BooleanRand(const G4double prob) const;
162 void DielectricDielectric(); <<
163 186
164 void DielectricLUT(); << 187 G4ThreeVector GetFacetNormal(const G4ThreeVector& Momentum,
165 void DielectricLUTDAVIS(); << 188 const G4ThreeVector& Normal) const;
166 189
167 void DielectricDichroic(); << 190 void DielectricMetal();
168 void CoatedDielectricDielectric(); << 191 void DielectricDielectric();
169 192
170 void ChooseReflection(); << 193 void DielectricLUT();
171 void DoAbsorption(); << 194 void DielectricLUTDAVIS();
172 void DoReflection(); <<
173 195
174 G4double GetIncidentAngle(); << 196 void DielectricDichroic();
175 // Returns the incident angle of optical pho <<
176 197
177 G4double GetReflectivity(G4double E1_perp, G << 198 void ChooseReflection();
178 G4double incidentan << 199 void DoAbsorption();
179 G4double ImaginaryR << 200 void DoReflection();
180 // Returns the Reflectivity on a metallic su <<
181 201
182 G4double GetReflectivityThroughThinLayer(G4d << 202 G4double GetIncidentAngle();
183 G4d << 203 // Returns the incident angle of optical photon
184 G4d <<
185 // Returns the Reflectivity on a coated surf <<
186 204
187 void CalculateReflectivity(); << 205 G4double GetReflectivity(G4double E1_perp,
>> 206 G4double E1_parl,
>> 207 G4double incidentangle,
>> 208 G4double RealRindex,
>> 209 G4double ImaginaryRindex);
>> 210 // Returns the Reflectivity on a metalic surface
188 211
189 void BoundaryProcessVerbose() const; << 212 void CalculateReflectivity(void);
190 213
191 // Invoke SD for post step point if the phot << 214 void BoundaryProcessVerbose(void) const;
192 G4bool InvokeSD(const G4Step* step); <<
193 215
194 G4ThreeVector fOldMomentum; << 216 // Invoke SD for post step point if the photon is 'detected'
195 G4ThreeVector fOldPolarization; << 217 G4bool InvokeSD(const G4Step* step);
196 218
197 G4ThreeVector fNewMomentum; << 219 private:
198 G4ThreeVector fNewPolarization; <<
199 220
200 G4ThreeVector fGlobalNormal; << 221 G4double thePhotonMomentum;
201 G4ThreeVector fFacetNormal; <<
202 222
203 const G4Material* fMaterial1; << 223 G4ThreeVector OldMomentum;
204 const G4Material* fMaterial2; << 224 G4ThreeVector OldPolarization;
205 225
206 G4OpticalSurface* fOpticalSurface; << 226 G4ThreeVector NewMomentum;
>> 227 G4ThreeVector NewPolarization;
207 228
208 G4MaterialPropertyVector* fRealRIndexMPV; << 229 G4ThreeVector theGlobalNormal;
209 G4MaterialPropertyVector* fImagRIndexMPV; << 230 G4ThreeVector theFacetNormal;
210 G4Physics2DVector* fDichroicVector; <<
211 231
212 G4double fPhotonMomentum; << 232 G4Material* Material1;
213 G4double fRindex1; << 233 G4Material* Material2;
214 G4double fRindex2; <<
215 234
216 G4double fSint1; << 235 G4OpticalSurface* OpticalSurface;
217 236
218 G4double fReflectivity; << 237 G4MaterialPropertyVector* PropertyPointer;
219 G4double fEfficiency; << 238 G4MaterialPropertyVector* PropertyPointer1;
220 G4double fTransmittance; << 239 G4MaterialPropertyVector* PropertyPointer2;
221 G4double fSurfaceRoughness; <<
222 240
223 G4double fProb_sl, fProb_ss, fProb_bs; << 241 G4double Rindex1;
224 G4double fCarTolerance; << 242 G4double Rindex2;
225 243
226 // Used by CoatedDielectricDielectric() << 244 G4double cost1, cost2, sint1, sint2;
227 G4double fCoatedRindex, fCoatedThickness; <<
228 245
229 G4OpBoundaryProcessStatus fStatus; << 246 G4OpBoundaryProcessStatus theStatus;
230 G4OpticalSurfaceModel fModel; <<
231 G4OpticalSurfaceFinish fFinish; <<
232 247
233 G4int f_iTE, f_iTM; << 248 G4OpticalSurfaceModel theModel;
234 249
235 G4int fNumSmallStepWarnings = 0; // number o << 250 G4OpticalSurfaceFinish theFinish;
236 G4int fNumBdryTypeWarnings = 0; // number o <<
237 251
238 size_t idx_dichroicX = 0; << 252 G4double theReflectivity;
239 size_t idx_dichroicY = 0; << 253 G4double theEfficiency;
240 size_t idx_rindex1 = 0; << 254 G4double theTransmittance;
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; <<
253 255
254 // Used by CoatedDielectricDielectric() << 256 G4double theSurfaceRoughness;
255 G4bool fCoatedFrustratedTransmission = true; <<
256 257
257 G4bool fInvokeSD; << 258 G4double prob_sl, prob_ss, prob_bs;
>> 259
>> 260 G4int iTE, iTM;
>> 261
>> 262 G4double kCarTolerance;
>> 263
>> 264 size_t idx, idy;
>> 265 G4Physics2DVector* DichroicVector;
>> 266
>> 267 G4bool fInvokeSD;
258 }; 268 };
259 269
260 //////////////////// 270 ////////////////////
261 // Inline methods 271 // Inline methods
262 //////////////////// 272 ////////////////////
263 273
264 inline G4bool G4OpBoundaryProcess::G4BooleanRa << 274 inline
>> 275 G4bool G4OpBoundaryProcess::G4BooleanRand(const G4double prob) const
265 { 276 {
266 // Returns a random boolean variable with th << 277 /* Returns a random boolean variable with the specified probability */
>> 278
267 return (G4UniformRand() < prob); 279 return (G4UniformRand() < prob);
268 } 280 }
269 281
270 inline G4bool G4OpBoundaryProcess::IsApplicabl << 282 inline
271 const G4ParticleDefinition& aParticleType) << 283 G4bool G4OpBoundaryProcess::IsApplicable(const G4ParticleDefinition&
>> 284 aParticleType)
>> 285 {
>> 286 return ( &aParticleType == G4OpticalPhoton::OpticalPhoton() );
>> 287 }
>> 288
>> 289 inline
>> 290 G4OpBoundaryProcessStatus G4OpBoundaryProcess::GetStatus() const
272 { 291 {
273 return (&aParticleType == G4OpticalPhoton::O << 292 return theStatus;
274 } 293 }
275 294
276 inline G4OpBoundaryProcessStatus G4OpBoundaryP << 295 inline
>> 296 void G4OpBoundaryProcess::SetInvokeSD(G4bool flag)
277 { 297 {
278 return fStatus; << 298 fInvokeSD = flag;
279 } 299 }
280 300
281 inline void G4OpBoundaryProcess::ChooseReflect << 301 inline
>> 302 void G4OpBoundaryProcess::ChooseReflection()
282 { 303 {
283 G4double rand = G4UniformRand(); << 304 G4double rand = G4UniformRand();
284 if(rand < fProb_ss) << 305 if ( rand >= 0.0 && rand < prob_ss ) {
285 { << 306 theStatus = SpikeReflection;
286 fStatus = SpikeReflection; << 307 theFacetNormal = theGlobalNormal;
287 fFacetNormal = fGlobalNormal; << 308 }
288 } << 309 else if ( rand >= prob_ss &&
289 else if(rand < fProb_ss + fProb_sl) << 310 rand <= prob_ss+prob_sl) {
290 { << 311 theStatus = LobeReflection;
291 fStatus = LobeReflection; << 312 }
292 } << 313 else if ( rand > prob_ss+prob_sl &&
293 else if(rand < fProb_ss + fProb_sl + fProb_b << 314 rand < prob_ss+prob_sl+prob_bs ) {
294 { << 315 theStatus = BackScattering;
295 fStatus = BackScattering; << 316 }
296 } << 317 else {
297 else << 318 theStatus = LambertianReflection;
298 { << 319 }
299 fStatus = LambertianReflection; <<
300 } <<
301 } 320 }
302 321
303 inline void G4OpBoundaryProcess::DoAbsorption( << 322 inline
>> 323 void G4OpBoundaryProcess::DoAbsorption()
304 { 324 {
305 fStatus = Absorption; << 325 theStatus = Absorption;
>> 326
>> 327 if ( G4BooleanRand(theEfficiency) ) {
306 328
307 if(G4BooleanRand(fEfficiency)) << 329 // EnergyDeposited =/= 0 means: photon has been detected
308 { << 330 theStatus = Detection;
309 // EnergyDeposited =/= 0 means: photon has << 331 aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
310 fStatus = Detection; << 332 }
311 aParticleChange.ProposeLocalEnergyDeposit( << 333 else {
312 } << 334 aParticleChange.ProposeLocalEnergyDeposit(0.0);
313 else << 335 }
314 { <<
315 aParticleChange.ProposeLocalEnergyDeposit( <<
316 } <<
317 336
318 fNewMomentum = fOldMomentum; << 337 NewMomentum = OldMomentum;
319 fNewPolarization = fOldPolarization; << 338 NewPolarization = OldPolarization;
320 339
321 aParticleChange.ProposeTrackStatus(fStopAndK << 340 // aParticleChange.ProposeEnergy(0.0);
>> 341 aParticleChange.ProposeTrackStatus(fStopAndKill);
322 } 342 }
323 343
324 inline void G4OpBoundaryProcess::DoReflection( << 344 inline
>> 345 void G4OpBoundaryProcess::DoReflection()
325 { 346 {
326 if(fStatus == LambertianReflection) << 347 if ( theStatus == LambertianReflection ) {
327 { << 348
328 fNewMomentum = G4LambertianRand(fGlobalNor << 349 NewMomentum = G4LambertianRand(theGlobalNormal);
329 fFacetNormal = (fNewMomentum - fOldMomentu << 350 theFacetNormal = (NewMomentum - OldMomentum).unit();
330 } << 351
331 else if(fFinish == ground) << 352 }
332 { << 353 else if ( theFinish == ground ) {
333 fStatus = LobeReflection; << 354
334 if(!fRealRIndexMPV || !fImagRIndexMPV) << 355 theStatus = LobeReflection;
335 { << 356 if ( PropertyPointer1 && PropertyPointer2 ){
336 fFacetNormal = GetFacetNormal(fOldMoment << 357 } else {
337 } << 358 theFacetNormal =
338 // else << 359 GetFacetNormal(OldMomentum,theGlobalNormal);
339 // complex ref. index to be implemented << 360 }
340 fNewMomentum = << 361 G4double PdotN = OldMomentum * theFacetNormal;
341 fOldMomentum - (2. * fOldMomentum * fFac << 362 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
342 } << 363
343 else << 364 }
344 { << 365 else {
345 fStatus = SpikeReflection; << 366
346 fFacetNormal = fGlobalNormal; << 367 theStatus = SpikeReflection;
347 fNewMomentum = << 368 theFacetNormal = theGlobalNormal;
348 fOldMomentum - (2. * fOldMomentum * fFac << 369 G4double PdotN = OldMomentum * theFacetNormal;
349 } << 370 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
350 fNewPolarization = << 371
351 -fOldPolarization + (2. * fOldPolarization << 372 }
>> 373 G4double EdotN = OldPolarization * theFacetNormal;
>> 374 NewPolarization = -OldPolarization + (2.*EdotN)*theFacetNormal;
352 } 375 }
353 376
354 #endif /* G4OpBoundaryProcess_h */ 377 #endif /* G4OpBoundaryProcess_h */
355 378