Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/processes/optical/History

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  1 # Category op History
  2 
  3 See `CONTRIBUTING.rst` for details of **required** info/format for each entry,
  4 which **must** added in reverse chronological order (newest at the top).
  5 It must **not** be used as a substitute for writing good git commit messages!
  6 
  7 -------------------------------------------------------------------------------
  8 ## 2024-07-18 Hans Wenzel (op-V11-02-01)
  9 - G4OpWLS2.cc: change SetProcessSubType from fOpWLS to fOpWLS2 
 10 
 11 ## 2024-05-24 Daren Sawkey (op-V11-02-00)
 12 - G4OpBoundaryProcess: Calculate Fresnel reflection/refraction correctly when
 13   material property TRANSMITTANCE is specified. The ratio of Fresnel
 14   reflection/refraction now does not change when a non-zero transmission is
 15   specified. Previously, if transmission of X% was specified, there would be
 16   transmission of X% as expected, but the ratio of Fresnel refraction to
 17   Fresnel reflection would be set to X%. Addressing bug 2578.
 18 
 19 ## 2023-10-27 Daren Sawkey (op-V11-01-00)
 20 - G4OpBoundaryProcess: verbosity of 0 silences run-time warnings
 21 
 22 ## 2022-11-23 Gabriele Cosmo (op-V11-00-08)
 23 - Fixed compilation warnings for implicit type conversions on macOS/XCode 14.1.
 24 
 25 ## 2022-10-26 Daren Sawkey (op-V11-00-07)
 26 - G4OpBoundaryProcess. Contribution of Laurie Cappellugola et al, Aix Marseille U.
 27   Calculate reflection/refraction from thin film coating.
 28 
 29 ## 2022-10-18 Daren Sawkey (op-V11-00-06)
 30 - G4OpBoundaryProcess: issue warning when step size slightly larger than 
 31   geometry tolerance, in which case boundary scattering may be incorrect.
 32   Addresses bug 2510.
 33 
 34 ## 2022-04-27 Daren Sawkey (op-V11-00-05)
 35 - many files: apply clang-tidy recommendations. Use default ctor, auto keyword,
 36   remove (void) function argument, don't check for nullptr before delete, == for
 37   string comparisons.
 38 
 39 ## 2022-04-11 Daren Sawkey (op-V11-00-04)
 40 - G4OpBoundaryProcess: Check for nullptr before dereferencing. Addresses bug 2471.
 41 
 42 ## 2022-04-07 Daren Sawkey (op-V11-00-03)
 43 - G4OpWLS2: fix incorrect call to set time profile. Addresses bug 2482.
 44 
 45 ## 2022-01-18 Jonas Hahnfeld (op-V11-00-02)
 46 - Prefer pointer to `const G4Material` if possible
 47 
 48 ## 2022-01-10 Daren Sawkey (op-V11-00-01)
 49 - Remove G4lrint/G4lint to calculate angle bin for Davis/LBNL LUT. Fixes crash
 50   when angle = 0. Addresses issue 116.
 51 
 52 ## 2021-12-10 Ben Morgan (op-V11-00-00)
 53 - Change to new Markdown History format
 54 
 55 ---
 56 
 57 # History entries prior to 11.0
 58 
 59 21 Oct 21: D. Sawkey (op-V10-07-05)
 60 - G4OpBoundaryProcess - rename variables: class start with f; lowercase
 61   - make comparison to nullptr explicit
 62   - remove unneeded intermediate variable
 63   - refactor Davis LUT calculation
 64 
 65 21 Oct 21: D. Sawkey (op-V10-07-04)
 66 - G4OpBoundaryProcess - on StepTooSmall, propose velocity corresponding to
 67   material of post step point. Addresses bug 2438.
 68 
 69 19 Oct 21: D. Sawkey (op-V10-07-03)
 70 - all process classes - update G4OpticalParameters when process
 71   parameters updated directly. Addresses bug 2425.
 72 
 73 21 May 21: D. Sawkey (op-V10-07-02)
 74 - G4OpBoundaryProcess: make some variables local and initialize them
 75   properly. Addresses bug 2364.
 76 
 77 18 May 21: V. Ivanchenko (op-V10-07-01)
 78 - G4OpRayleigh, G4OpWLS, G4OpWLS2 - use G4PhysicsFreeVector instead
 79   of G4PhysicsOrderedFreeVector
 80 
 81 16 Apr 21: Ben Morgan (op-V10-07-00)
 82 - Migrate build to modular CMake API
 83 
 84 04 Nov 20: D. Sawkey (op-V10-06-07)
 85 - Fix reading Davis LUT out of bounds (addresses bug 2287)
 86 
 87 05 Oct 20: D. Sawkey (op-V10-06-06)
 88 - All files: apply clang-format style guidelines
 89 
 90 30 Sept 20: D. Sawkey (op-V10-06-05)
 91 - G4OpBoundaryProcess: increase geometry tolerance to kCarTolerance
 92 
 93 20 July 20: D. Sawkey (op-V10-06-04)
 94 - G4OpRayleigh, G4OpAbsorption, G4OpMieHG, G4OpWLS, G4OpWLS2: move to new
 95   G4OpticalParameters class to control simulation parameters
 96 
 97 29 May 20: D. Sawkey (op-V10-06-03)
 98 - all files - thorough cleaning; shorten temporary variable names;
 99   improve readability
100 
101 26 May 20: A. Howard (op-V10-06-02)
102 - Add second wavelength shifting process - G4OpWLS2
103 
104 15 Feb 20: V. Ivanchenko (op-V10-06-01)
105 - G4OpRayleigh - avoid double deletion of property vectors
106 
107 21 Jan 20: D. Sawkey (op-V10-06-00)
108 - use new ConstPropertyExists(G4int) rather than (G4String)
109 
110 28 Oct 19: D. Sawkey (op-V10-05-02)
111 -  G4OpWLS.cc - call G4VParticleChange->SetNumberOfSecondaries only once
112  - address bug 2200
113 
114 23 Aug 19: D. Sawkey (op-V10-05-01)
115 - G4OpBoundaryProcess: fix Coverity reports
116 
117 23 May 19: D. Sawkey (op-V10-05-00)
118 - most files: format indentation, parentheses; add C++11 keywords;
119     - some changes to if/else loops and variable names
120 
121 25 May 18: D. Sawkey (op-V10-04-00)
122 - G4OpMieHG: change GetProperty from string to enum
123 
124 11 September 17: S.Y. Jun (op-V10-03-03)
125 - change material property keys by the enum type defined in
126   G4MaterialPropertiesIndex
127 
128 29 May 17: P. Gumplinger (op-V10-03-02)
129 - This version of Mariele Stockhoff's DAVIS model includes not only
130   reflection but also the capability of transmitting photons based on LUTs
131 
132 22 Mar 17: P. Gumplinger (op-V10-03-00/op-V10-03-01)
133 - add Mariele Stockhoff's DAVIS model
134 
135 03 Oct 16: P. Gumplinger (op-V10-02-02)
136 - act on bug report 1888
137 
138 07 Mar 16: P. Gumplinger (op-V10-02-01)
139 - add flag for InvokeSD method call in G4OpBoundaryProcess
140 
141 16 Feb 16: P. Gumplinger (op-V10-02-00)
142 - addresses bug report #1826, thanks to Tetsuma Yaguchi
143   in DielectricLUT of G4OpBoundaryProcess
144 
145  9 Oct 15: P. Gumplinger (op-V10-01-05)
146 -  fix Coverity error in G4OpBoundaryProcess.cc
147 
148 13 Aug 15: P. Gumplinger (op-V10-01-04)
149 - G4OpBoundaryProcess.cc, G4OpRayleigh.cc - checked while loops
150 
151 3 July 2015 P. Gumplinger (op-V10-01-03)
152 - Allow for a real and imaginary part of the index of refraction
153   for Material1 in G4OpBoundaryProcess::GetReflectivity
154   Bug report: #1762
155 
156 26 June 2015 P. Gumplinger (op-V10-01-02)
157 - Correct the reflectivity calculation with complex refractive index;
158   include the index of refraction of the PreStepPoint medium
159   Bug report: #1762
160 
161 23 March 2015 P. Gumplinger (op-V10-01-01)
162 - change the calculation of NewPolarization in G4OpRayleigh.cc to avoid a
163   divided by zero when the NewMomentumDirection is perpendicular to the
164   OldPolarization. If the polarization is perpendicular to the scattering
165   plane, it will not change after the scattering.
166 
167 11 March 2015 P. Gumplinger (op-V10-01-00)
168 - add aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
169   to G4OpAbsorption
170 
171 06 November 2014 P. Gumplinger (op-V10-00-10)
172 - fix Coverity error in G4OpWLS.cc
173 
174 27 October 2014 A. Dotti (op-V10-00-09)
175 - Address problem #1675, this requires re engineering of
176   all UI commands related to optical processes and created
177   in G4OpticalPhysics.
178 - Co-working tags: xrays-V10-00-06, op-V10-00-09, phys-ctor-em-V10-00-17
179 
180 17th October 2014 P. Gumplinger (op-V10-00-08)
181 - fix G4OpRayleigh.cc to actually set the temperature for materials other
182   than Water
183 - G4OpBoundaryProcess: Add a ConstProperty "SURFACEROUGHNESS". If set,
184   the reflectivity at dielectric_dielectric surface is angular dependent
185   and calculated from:
186   exp(-pow((4*pi*theSurfaceroughness*Rindex1*cost1/wavelength),2))
187   for Rindex1 > Rindex2. Thanks to M. van Dijk (Bristol University).
188 
189 16th October 2014 P. Gumplinger (op-V10-00-07)
190 - previous tag was committed only to /include directory
191 
192 10th October 2014 P. Gumplinger (op-V10-00-06)
193 - G4OpRayleigh Process: This version calculates the Rayleigh scattering
194   length for more materials than just Water (although the Water default
195   is kept). To do this the user would need to specify the
196   ISOTHERMAL_COMPRESSIBILITY as a material property and optionally an
197   RS_SCALE_LENGTH (useful for testing). Code comes from Philip Graham
198   (Queen Mary University of London).
199 
200 9th October 2014 P. Gumplinger (op-V10-00-05)
201 - G4OpBoundaryProcess allow for a Transmittance, Reflectivity and
202   Absorption on dielectric_dielectric and dielectric_metal boundaries
203 
204 10th June 2014 P. Gumplinger (op-V10-00-04)
205 - G4OpWLS always rebuild theIntegralTable in BuildPhysicsTable method
206 - G4OpRayleigh always rebuild thePhysicsTable in BuildPhysicsTable method
207 - remove the private method BuildThePhysicsTable
208 
209 6th June 2014 P. Gumplinger (op-V10-00-03)
210 - implement the full UNIFIED reflectivity probabilities when a
211   dichroic surface reflects
212 
213 23rd December 2013 M. Asai (op-V10-00-02)
214 - Additional protection.
215 
216 22nd December 2013 M. Asai (op-V10-00-01)
217 - move construction of WLSTimeGeneratorProfile to the constructor of G4OpWLS.
218 
219 18th December 2013 P. Gumplinger (op-V10-00-00)
220 - make WLSTimeGeneratorProfile and UseTimeProfile static in G4OpWLS
221 
222 26th August 2013 P. Gumplinger (op-V09-06-06)
223 - move theStatus assignment for Dichroic where the decision is actually made
224 - made the necessary and required modifications for G4OpBoundaryProcess to
225   work in situations with parallel worlds
226 - G4OpBoundaryProcess will now invoke the ProcessHit method of the sensitive
227   detector associated with the PostStepPoint volume when optical photons are
228   detected at the entrance boundary
229 
230 14th June 2013 P. Gumplinger (op-V09-06-05)
231 - fix coverity errors in G4OpBoundaryProcess
232 
233 13th June 2013 P.Gumplinger (op-V09-06-04)
234 - G4OpWLS and G4OpRayleigh -  added BuildPhysicsTable method which is doing
235   as before but at the moment when material list is fully defined.
236 
237 6th June 2013 P.Gumplinger (op-V09-06-03)
238 - comment out G4cout in G4OpBoundaryProcess::DielectricDichroic()
239 
240 5th June 2013 P.Gumplinger (op-V09-06-02)
241 - fix compilation error in G4OpWLS
242 
243 5th June 2013 P.Gumplinger (op-V09-06-01)
244 - Require that WLS photons have a longer wavelength than the photon that
245   is being absorbed/shifted. Please, see bug report on the Forum:
246   http://hypernews.slac.stanford.edu/HyperNews/geant4/get/opticalphotons/509.html
247   Thanks to Ben Loer (FNAL)
248 - Add the capability of simulating the transmission of a dichroic filter;
249 
250   In this first implementation, the photon is either reflected or transmitted
251   without changing direction. Surface->SetType(dielectric_dichroic);
252   You must also supply a 2D data file with the format:
253   4     #ofWavelength-bins     #ofIncidentAngle-bins
254   List of Wavelength-bin values in nm (i)
255   List of IncidentAngle-bin values in deg (j) - angle from the normal
256   Transmittance[1,1],..,Transmittance[i,1],..,Transmittance[n,1]
257   .....................,Transmittance[i,j],.....................
258   Transmittance[1,m],..,Transmittance[i,m],..,Transmittance[n,m] in %
259 
260   and: setenv G4DICHROICDATA dichroic.data
261 
262 30th Apr.2013 P.Gumplinger (op-V09-06-00)
263               replace CLHEP::Rand*::shoot.. with G4Rand*::shoot...
264               in G4OpBoundaryProcess
265 
266 19th Oct.2012 G.Cosmo (op-V09-05-12)
267               Corrected debug flag in G4OpBoundaryProcess.cc to be
268               G4OPTICAL_DEBUG, as the one defined in GNUmakefile...
269 
270 17th Oct.2012 J.Apostolakis (op-V09-05-11)
271         Avoid the 'new' Event-abort exception, by 'protecting'
272                  it with G4DEBUG_OPTICAL_PROC flag.
273               By default, the normal is now flipped instead
274                  (as Geant4 9.5 and 9.5 patch 1 worked.)
275 
276  5th Oct.2012 J.Apostolakis (op-V09-05-10)
277               G4OpBoundaryProcess now uses GlobalExitNormal()
278                ( same code as op-V09-05-06 )
279 
280 ********* G4OpBoundaryProcess uses the *Global* Normal  ****
281 
282  5th Oct.2012 J.Apostolakis (op-V09-05-09)
283               Retagged to enable testing - same code as -07 below.
284  4th Oct.2012 J.Apostolakis (op-V09-05-07)
285               Added information in printout of Exception on direction of
286               momentum and exiting normal.
287 
288 03rd Oct.2012 P.Gumplinger (op-V09-05-05a)
289               add G4Exception when theGlobalNormal points the
290               wrong direction in G4OpBoundaryProcess
291 
292 10th Jul.2012 G.Cosmo (op-V09-05-05)
293               Explicitly use inclusion of headers for system of units and
294               physical constants, in plan to remove implicit inclusion from
295               globals.hh.
296 
297 20th Jun 2012 P.Gumplinger (op-V09-05-04)
298               remove methods: SetModel/GetModel from G4OpBoundaryProcess class
299 
300 7th  Jun 2012 G.Cosmo (op-V09-05-03)
301               Fixed trivial cases of variable shadowing in G4OpMieHG.cc
302               and G4OpWLS.cc.
303 
304 17th May 2012 P.Gumplinger (op-V09-05-02)
305               G4OpWLS.hh, G4OpRayleigh.hh, G4OpAbsorption.hh,
306               G4OpMieHG.hh and G4OpBoundaryProcess.hh -
307               more fixing Coverity warnings
308 
309 16th May 2012 P.Gumplinger (op-V09-05-01)
310               G4OpBoundaryProcess.cc - trying to fix Coverity warnings
311 
312 24th Jan 2012 P.Gumplinger (op-V09-05-00)
313               G4OpBoundaryProcess.cc - solves Problem #1275
314               call aParticleChange.ProposeVelocity(aTrack.GetVelocity())
315               at every invocation of DoIt; for FresnelRefraction calculate
316               finalVelocity locally from Material2->
317               GetMaterialPropertiesTable()->GetProperty("GROUPVEL")
318 
319 28th Oct 2011 P.Gumplinger (op-V09-04-03)
320               add logic for ProposeVelocity to G4OpBoundaryProcess::PostStepDoIt
321 
322 13th Oct 2011 P.Gumplinger (op-V09-04-02)
323               modify to work with materials-V09-04-14
324 
325 6th  Oct 2011 P.Gumplinger (op-V09-04-01)
326               update G4Exception syntax in G4OpWLS.cc and
327               G4OpBoundaryProcess.cc
328 
329 14th Jun 2011 Peter Gumplinger (op-V09-04-00)
330               A dielectric_dielectric surface may now have a wavelength
331               dependent property "TRANSMITTANCE". If this is specified
332               for a surface it overwrites the Snell's law's probability.
333               This allows the simulation of anti-reflective coatings.
334               Thanks to Evgueni Goudzovski (CERN) for the idea.
335 
336 29th Oct 2010 Peter Gumplinger (op-V09-03-06)
337               Fix minor Coverty Errors
338 
339 22th Oct 2010 Peter Gumplinger (op-V09-03-05)
340               Add Mie Scattering of Optical Photons
341               Thanks to Xin Qian (Kellogg Radiation Lab of Caltech)
342               Based on work from Vlasios Vasileiou (University of Maryland)
343               Henyey-Greenstein phase functions
344 
345 21th Oct 2010 Peter Gumplinger (op-V09-03-04)
346               Fix Bug 207; Thanks to Xin Qian (Kellogg Radiation Lab of Caltech)
347 
348 14th Jun 2010 Peter Gumplinger (op-V09-03-03)
349               ProposeLocalEnergyDeposit(thePhotonMomentum) every time the
350               photon is fStopAndKill because of NoRINDEX. This will trigger
351               scoring when a photon encounters a volume not defined as an
352               optical medium (indirect user request):
353               http://hypernews.slac.stanford.edu/HyperNews/geant4/get/opticalphotons/335/1.html
354 
355 18th May 2010 Peter Gumplinger (op-V09-03-02)
356               fix a bug reported at:
357               http://hypernews.slac.stanford.edu/HyperNews/geant4/get/opticalphotons/334/1/1.html
358               theFacetNormal was not sampled for polishedbackpainted
359               in DielectricDielectric method of G4OpBoundaryProcess
360 
361 19th Apr 2010 Peter Gumplinger (op-V09-03-01)
362               fix Problem report #1114 in that for backpainted
363               surfaces theReflectivity is not applied twice.
364               While doing the fix I also completely refashioning the
365               code in the case of type == dielectric_dielect.
366 
367 19th Jan 2010 Peter Gumplinger (op-V09-03-00)
368               assign PropertyPointers to NULL at the start of the
369               PostStepDoIt, addresses bug report #1094
370 
371 19th Nov 2009 Peter Gumplinger (op-V09-02-06)
372               change the code such that the LUT are now read in and kept
373               by G4OpticalSurface and not G4OpBoundaryProcess, reordering
374               of enumeration and set theStatus in DielectricLUT.
375 
376 11th Nov 2009 Peter Gumplinger (op-V09-02-05)
377               add capability of simulating surface reflections
378               with Look-Up-Tables (LUT) containing measured
379               optical reflectance for a variety of surface
380               treatments - Thanks to Martin Janecek and
381               William Moses (Lawrence Berkeley National Lab.)
382 
383 9th  Nov 2009 Peter Gumplinger (op-V09-02-04)
384               G4OpBoundary: initialze theReflectivity and theEfficiency
385               at the beginning of the PostStepDoIt; add method
386               BoundaryProcessVerbose which will now print the process
387               status for every call to PostStepDoIt.
388 
389 5th  Nov 2009 Peter Gumplinger (op-V09-02-03)
390               G4OpBoundary::PostStepDoIt - all dielectric_dielectric
391               surfaces may now have a reflectivity <1; not only
392               'frontpainted' as was the case in the past.
393 
394 6th  May 2009 Peter Gumplinger (op-V09-02-02)
395               G4OpBoundary::PostStepDoIt now throws an G4Exception
396               EventMustBeAborted when an invalid surface normal is returnd;
397               addresses bug report #1060
398 
399 23th Mar 2009 Peter Gumplinger (op-V09-02-01)
400               for complex index of refraction: (1)resample the reflectivity
401               every time in the do-while of DielectricMetal, but don't
402               re-calculate theFacetNormal (which has already been chosen
403               in CalculateReflectivity), also (2) avoid an infinite loop by
404               resetting iTE and iTM inside the do-while of GetReflectivity;
405               both are bug-fixes.
406 
407 14th Jan 2009 Peter Gumplinger (op-V09-02-00)
408               respond to bug report 1040 by fixing G4OpBoundaryProcess.cc
409 
410 07th Nov 2008 Peter Gumplinger (op-V09-01-09)
411               use new global/HEPRandom's G4RandomTools.hh
412 
413 24th Oct 2008 Peter Gumplinger (op-V09-01-08)
414               use local G4OpProcessSubType.hh
415 
416 21st Oct 2008 Peter Gumplinger (op-V09-01-07)
417               add SetProcessSubType for G4OpAbsorption, G4OpBoundaryProcess,
418               G4OpRayleigh and G4OpWLS
419 
420 18th Aug 2008 Peter Gumplinger (op-V09-01-06)
421               use signatures G4SwapPtr(T*& and G4SwapObj(T*
422               in G4OpBoundaryProcess - to work with global-V09-01-12
423 
424 15th Aug 2008 Peter Gumplinger (op-V09-01-05)
425               replaced G4SwapPtr with G4SwapObj for Rindex
426               in G4OpBoundaryProcess - serious error since op-V09-01-00
427               (see also Problem Report 1020)
428 
429 4th July 2008 Peter Gumplinger (op-V09-01-04)
430               In G4OpWLS now SetTouchableHandle(aTrack.GetTouchableHandle())
431               for the secondaries in the DoIt.
432               In G4OpBoundaryProcess.cc initialize the pointer:
433               G4LogicalSurface* Surface = NULL;
434 
435 27th June 2008 Peter Gumplinger (op-V09-01-03)
436                In G4OpBoundaryProcess changed unsafe cast
437                (G4OpticalSurface*) to dynamic_cast<G4OpticalSurface*>
438                following suggestion in bug-report #1014
439 
440 6th June 2008 Peter Gumplinger (op-V09-01-02)
441               G4OpRayleigh, G4OpWLS = trivial name changes:
442               momentum->energy, momenta->energies
443 
444 5th June 2008 Peter Gumplinger (op-V09-01-00)
445               G4OpBoundaryProcess: Removed G4Swap methods - replaced by
446               G4SwapPtr. Removed G4IsotropicRand method - replaced by
447               G4RandomDirection. Add commented code to change absorption
448               at a dielectric/metal boundary into transmission.
449 
450 29th Oct 2007 Peter Gumplinger (op-V09-00-01)
451               In G4OpWLS.cc allow for the MeanNumberOfPhotons to be
452               different from one, in case the constant property:
453               WLSMEANNUMBERPHOTONS is provided and, if it is, sample
454               NumPhotons with G4Poisson.
455 
456 15th Oct 2007 Peter Gumplinger (op-V09-00-00)
457               Add capability of calculating the reflectivity off a metal
458               surface by way of a complex index of refraction.
459               Thanks to Sehwook Lee and John Hauptman
460               (Dept. of Physics - Iowa State Univ.)
461 
462 11th May 2007 Gabriele Cosmo (op-V08-03-00)
463               Use call to G4GeometryTolerance instead of kCarTolerance in
464               G4OpBoundaryProcess.
465               Requires tag "global-V08-03-00" and related tag set.
466 
467 11th May 2006 Peter Gumplinger (op-V08-00-01)
468               thanks to Andreia Trindade and Pedro Rodrigues, the WLS time
469               delay can now be a delta function or exponential. New classes:
470               G4VWLSTimeGeneratorProfile, G4WLSTimeGeneratorProfileDelta and
471               G4WLSTimeGeneratorProfileExponential
472 
473 17th Feb 2006 Peter Gumplinger (op-V08-00-00)
474               fix default behaviour for unified model of dielectric_metal
475 
476 28th July 2005 Peter Gumplinger (op-V07-01-00)
477                add G4ProcessType to all constructors
478 
479 10th December 2004 Gabriele Cosmo (op-V06-02-06)
480                 replaced M_PI with CLHEP's pi
481 
482 02nd December 2004 Peter Gumplinger (op-V06-02-05)
483                 migration to cmath
484 
485 28th October 2004 Gabriele Cosmo (op-V06-02-04)
486                 Added G4OPTICAL_DEBUG flag for debug printout.
487 
488 18th October 2004 Peter Gumplinger (op-V06-02-03)
489                 Fix bug in DielectricMetal only GetFacetNormal for
490                 LobeReflection.
491                 Migrate files to 7.0 ParticleChange method names:
492                 G4OpBoundaryProcess.hh, G4OpBoundaryProcess.cc,
493                 G4OpWLS.cc, G4OpRayleigh.cc, G4OpAbsorption.cc
494 
495 27th September 2004 Peter Gumplinger (op-V06-02-02)
496                 Fix bug in G4PlaneVectorRand and resample
497                 theFacetNormal for LobeReflection in DielectricMetal
498 
499 12th August 2004 Peter Gumplinger (op-V06-02-01)
500                 In G4OpBoundaryProcess.cc: use GetMaterial from
501                 G4StepPoint directly; apply/sample reflectivity and
502                 Unified model reflection parameters only once even
503                 for rough dielectric/metal surfaces - i.e. not again
504                 even when reflected ray still points toward the
505                 surface - fixes problem report 654.
506 
507 05th August 2004 Peter Gumplinger (op-V06-02-00)
508                 Allow for unified model reflectivity parameters
509                 to also work in case of dielectric_metal surfaces;
510                 addresses in part problem report 654.
511 
512 26th April 2004 Peter Gumplinger (op-V06-01-01)
513                 Protect against NULL pointers in G4OpRayleigh.
514                 Do not overwrite Rayleigh scattering length
515                 for the material named 'Water' if it has been
516                 specified by the user through a call to
517                 AddProperty("RAYLEIGH"
518 
519 21st April 2004 Peter Gumplinger (op-V06-01-00)
520                 Assign class members to defaults in DoIt.
521 
522 17th March 2004 Peter Gumplinger (op-V06-00-03)
523                 Assign all class members in constructor.
524 
525 24th February 2004 Gabriele Cosmo (op-V06-00-02)
526                 Added EOL at end of file in G4OpBoundaryProcess.cc to clear
527                 compilation warning in Linux-g++.
528 
529 19th February 2004 Peter Gumplinger (op-V06-00-01)
530                 Add process status: NotAtBoundary, SameMaterial,
531                                     StepTooSmall, NoRINDEX
532                 Allow for a skin-surface between mother and daughter
533                 volumes, with the daughter skin taking precedence.
534 
535 2nd February 2004 Peter Gumplinger (op-V06-00-00)
536                 Set theStatus = Undefined at start of DoIt
537                 Replace usage of 0 with NULL.
538 
539 1st December 2003 Peter Gumplinger (op-V05-02-02)
540                 G4OpBoundaryProcess.cc: modified to adopt G4SurfaceProperty.
541                 Requires tag "materials-V05-02-00".
542     Replaced usage of NULL with 0.
543 
544 4th October 2003 Gabriele Cosmo (op-V05-02-01)
545                 Modified GNUmakefile: added dependency to new module
546                 "geometry/navigation".
547                 Coworks with "geometry-V05-02-00" and "digits_hits-V05-02-00".
548 
549 23rd September 2003 Peter Gumplinger (op-V05-02-00)
550                 Add WLS (wavelength shifting) process
551 15th March 2003 Peter Gumplinger (op-V05-00-01)
552                 Change logic for assigning of Rindex2; bug report #444
553 4th February 2003 Peter Gumplinger (op-V05-00-00)
554                 Fix calculation of polarization for perpendicular
555                 incidence when Rindex1 > Rindex2; bug report #442
556 12th November 2002 Peter Gumplinger (op-V04-01-01)
557                 Fix calculation of polarization on dielectric dielectric
558                 interfaces; bug report #427
559 28th March 2002 Peter Gumplinger (op-V04-00-01)
560                 Add public inline method GetStatus and make enum
561                 G4OpBoundaryProcessStatus public in G4OpBoundaryProcess.hh
562 18th October 2001 Peter Gumplinger (op-V03-02-01)
563               Avoid warnings on Linux (gcc-2.95.2) compiler
564 - G4OpRayleigh.cc: remove unused variable 'aMaterial' in PostStepDoIt and
565                    'no_unit' in RayleighAttenuationLengthGenerator
566 - G4OpBoundaryProcess.cc: moved definition of E2_perp, E2_parl, E2_total
567                           outside IF-statement
568 31st August 2001 Peter Gumplinger (op-V03-02-00)
569 - G4OpRayleigh.hh, G4OpBoundary.hh and G4OpAbsorption.hh: changed processName
570                    to 'OpRayleigh', 'OpBoundary' and 'OpAbsorption' respectively
571 
572 30th January 2001 Peter Gumplinger (op-V03-00-05)
573 - G4OpRayleigh.cc: allow for positiv and negative CosTheta and force the
574                    new momentum direction to be in the same plane as the
575                    new and old polarization vectors
576                    still bug report: 207
577 
578 29th January 2001 Peter Gumplinger (op-V03-00-04)
579 - G4OpRayleigh.cc: fix calculation of SinTheta from CosTheta
580                    bug report: 207
581 
582 23rd January 2001 Peter Gumplinger (op-V03-00-02)
583 - G4OpRayleigh.cc: Allow for Rayleigh scattering length to be defined for
584            arbitrary material through the use of G4MaterialPropertyTable.
585 
586 5th October 2000  Peter Gumplinger (op-V02-00-02)
587 - G4OpAbsorption.cc: Comment out warning - No Absorption length specified.
588 
589 3rd August 2000  Gabriele Cosmo (op-V02-00-00r)
590 - G4OpBoundaryProcess.cc: changed RandGauss to G4RandGauss to fix problem
591   of events' reproducibility.
592 - Syncronized with HEAD (only CVS headers changes).
593 
594 21th October 1999  Peter Gumplinger (op-V00-01-01)
595 - G4OpBoundaryProcess.hh and G4OpBoundaryProcess.cc have been modified
596   (Fill NewMomentum/NewPolarization in DoAbsorption. These members need
597   to be filled since DoIt calls aParticleChange.SetMomentumChange etc.
598   upon return (thanks to: Clark McGrew)