1 | // |
---|
2 | // ******************************************************************** |
---|
3 | // * License and Disclaimer * |
---|
4 | // * * |
---|
5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
7 | // * conditions of the Geant4 Software License, included in the file * |
---|
8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
9 | // * include a list of copyright holders. * |
---|
10 | // * * |
---|
11 | // * Neither the authors of this software system, nor their employing * |
---|
12 | // * institutes,nor the agencies providing financial support for this * |
---|
13 | // * work make any representation or warranty, express or implied, * |
---|
14 | // * regarding this software system or assume any liability for its * |
---|
15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
16 | // * for the full disclaimer and the limitation of liability. * |
---|
17 | // * * |
---|
18 | // * This code implementation is the result of the scientific and * |
---|
19 | // * technical work of the GEANT4 collaboration. * |
---|
20 | // * By using, copying, modifying or distributing the software (or * |
---|
21 | // * any work based on the software) you agree to acknowledge its * |
---|
22 | // * use in resulting scientific publications, and indicate your * |
---|
23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
24 | // ******************************************************************** |
---|
25 | // |
---|
26 | // $Id: G4VMultipleScattering.hh,v 1.56 2009/04/07 18:39:47 vnivanch Exp $ |
---|
27 | // GEANT4 tag $Name: geant4-09-03-beta-cand-01 $ |
---|
28 | // |
---|
29 | // ------------------------------------------------------------------- |
---|
30 | // |
---|
31 | // GEANT4 Class header file |
---|
32 | // |
---|
33 | // |
---|
34 | // File name: G4VMultipleScattering |
---|
35 | // |
---|
36 | // Author: Vladimir Ivanchenko on base of Laszlo Urban code |
---|
37 | // |
---|
38 | // Creation date: 12.03.2002 |
---|
39 | // |
---|
40 | // Modifications: |
---|
41 | // |
---|
42 | // 16-07-03 Update GetRange interface (V.Ivanchenko) |
---|
43 | // |
---|
44 | // |
---|
45 | // Class Description: |
---|
46 | // |
---|
47 | // It is the generic process of multiple scattering it includes common |
---|
48 | // part of calculations for all charged particles |
---|
49 | // |
---|
50 | // 26-11-03 bugfix in AlongStepDoIt (L.Urban) |
---|
51 | // 25-05-04 add protection against case when range is less than steplimit (VI) |
---|
52 | // 30-06-04 make destructor virtual (V.Ivanchenko) |
---|
53 | // 27-08-04 Add InitialiseForRun method (V.Ivanchneko) |
---|
54 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivanchenko) |
---|
55 | // 15-04-05 optimize internal interfaces (V.Ivanchenko) |
---|
56 | // 15-04-05 remove boundary flag (V.Ivanchenko) |
---|
57 | // 07-10-05 error in a protection in GetContinuousStepLimit corrected (L.Urban) |
---|
58 | // 27-10-05 introduce virtual function MscStepLimitation() (V.Ivanchenko) |
---|
59 | // 26-01-06 Rename GetRange -> GetRangeFromRestricteDEDX (V.Ivanchenko) |
---|
60 | // 17-02-06 Save table of transport cross sections not mfp (V.Ivanchenko) |
---|
61 | // 07-03-06 Move step limit calculation to model (V.Ivanchenko) |
---|
62 | // 13-05-06 Add method to access model by index (V.Ivanchenko) |
---|
63 | // 12-02-07 Add get/set skin (V.Ivanchenko) |
---|
64 | // 27-10-07 Virtual functions moved to source (V.Ivanchenko) |
---|
65 | // 15-07-08 Reorder class members for further multi-thread development (VI) |
---|
66 | // 07-04-09 Moved msc methods from G4VEmModel to G4VMscModel (VI) |
---|
67 | // |
---|
68 | |
---|
69 | // ------------------------------------------------------------------- |
---|
70 | // |
---|
71 | |
---|
72 | #ifndef G4VMultipleScattering_h |
---|
73 | #define G4VMultipleScattering_h 1 |
---|
74 | |
---|
75 | #include "G4VContinuousDiscreteProcess.hh" |
---|
76 | #include "globals.hh" |
---|
77 | #include "G4Material.hh" |
---|
78 | #include "G4MaterialCutsCouple.hh" |
---|
79 | #include "G4ParticleChangeForMSC.hh" |
---|
80 | #include "G4Track.hh" |
---|
81 | #include "G4Step.hh" |
---|
82 | #include "G4EmModelManager.hh" |
---|
83 | #include "G4VMscModel.hh" |
---|
84 | #include "G4MscStepLimitType.hh" |
---|
85 | |
---|
86 | class G4ParticleDefinition; |
---|
87 | class G4DataVector; |
---|
88 | class G4PhysicsTable; |
---|
89 | class G4PhysicsVector; |
---|
90 | |
---|
91 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
92 | |
---|
93 | class G4VMultipleScattering : public G4VContinuousDiscreteProcess |
---|
94 | { |
---|
95 | public: |
---|
96 | |
---|
97 | G4VMultipleScattering(const G4String& name = "msc", |
---|
98 | G4ProcessType type = fElectromagnetic); |
---|
99 | |
---|
100 | virtual ~G4VMultipleScattering(); |
---|
101 | |
---|
102 | //------------------------------------------------------------------------ |
---|
103 | // Virtual methods to be implemented for the concrete model |
---|
104 | //------------------------------------------------------------------------ |
---|
105 | |
---|
106 | virtual G4bool IsApplicable(const G4ParticleDefinition& p) = 0; |
---|
107 | |
---|
108 | virtual void PrintInfo() = 0; |
---|
109 | |
---|
110 | protected: |
---|
111 | |
---|
112 | virtual void InitialiseProcess(const G4ParticleDefinition*) = 0; |
---|
113 | |
---|
114 | public: |
---|
115 | |
---|
116 | //------------------------------------------------------------------------ |
---|
117 | // Generic methods common to all ContinuousDiscrete processes |
---|
118 | //------------------------------------------------------------------------ |
---|
119 | |
---|
120 | // Initialise for build of tables |
---|
121 | void PreparePhysicsTable(const G4ParticleDefinition&); |
---|
122 | |
---|
123 | // Build physics table during initialisation |
---|
124 | void BuildPhysicsTable(const G4ParticleDefinition&); |
---|
125 | |
---|
126 | // Print out of generic class parameters |
---|
127 | void PrintInfoDefinition(); |
---|
128 | |
---|
129 | G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&); |
---|
130 | |
---|
131 | G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step&); |
---|
132 | |
---|
133 | // Store PhysicsTable in a file. |
---|
134 | // Return false in case of failure at I/O |
---|
135 | G4bool StorePhysicsTable(const G4ParticleDefinition*, |
---|
136 | const G4String& directory, |
---|
137 | G4bool ascii = false); |
---|
138 | |
---|
139 | // Retrieve Physics from a file. |
---|
140 | // (return true if the Physics Table can be build by using file) |
---|
141 | // (return false if the process has no functionality or in case of failure) |
---|
142 | // File name should is constructed as processName+particleName and the |
---|
143 | // should be placed under the directory specifed by the argument. |
---|
144 | G4bool RetrievePhysicsTable(const G4ParticleDefinition*, |
---|
145 | const G4String& directory, |
---|
146 | G4bool ascii); |
---|
147 | |
---|
148 | // The function overloads the corresponding function of the base |
---|
149 | // class.It limits the step near to boundaries only |
---|
150 | // and invokes the method GetMscContinuousStepLimit at every step. |
---|
151 | G4double AlongStepGetPhysicalInteractionLength( |
---|
152 | const G4Track&, |
---|
153 | G4double previousStepSize, |
---|
154 | G4double currentMinimalStep, |
---|
155 | G4double& currentSafety, |
---|
156 | G4GPILSelection* selection); |
---|
157 | |
---|
158 | // The function overloads the corresponding function of the base |
---|
159 | // class. |
---|
160 | G4double PostStepGetPhysicalInteractionLength( |
---|
161 | const G4Track&, |
---|
162 | G4double previousStepSize, |
---|
163 | G4ForceCondition* condition); |
---|
164 | |
---|
165 | // This method does not used for tracking, it is intended only for tests |
---|
166 | inline G4double ContinuousStepLimit(const G4Track& track, |
---|
167 | G4double previousStepSize, |
---|
168 | G4double currentMinimalStep, |
---|
169 | G4double& currentSafety); |
---|
170 | |
---|
171 | //------------------------------------------------------------------------ |
---|
172 | // Specific methods to build and access Physics Tables |
---|
173 | //------------------------------------------------------------------------ |
---|
174 | |
---|
175 | // Build empty Physics Vector |
---|
176 | G4PhysicsVector* PhysicsVector(const G4MaterialCutsCouple*); |
---|
177 | |
---|
178 | inline void SetBinning(G4int nbins); |
---|
179 | inline G4int Binning() const; |
---|
180 | |
---|
181 | inline void SetMinKinEnergy(G4double e); |
---|
182 | inline G4double MinKinEnergy() const; |
---|
183 | |
---|
184 | inline void SetMaxKinEnergy(G4double e); |
---|
185 | inline G4double MaxKinEnergy() const; |
---|
186 | |
---|
187 | inline void SetBuildLambdaTable(G4bool val); |
---|
188 | |
---|
189 | inline G4PhysicsTable* LambdaTable() const; |
---|
190 | |
---|
191 | // access particle type |
---|
192 | inline const G4ParticleDefinition* Particle() const; |
---|
193 | |
---|
194 | //------------------------------------------------------------------------ |
---|
195 | // Specific methods to set, access, modify models |
---|
196 | //------------------------------------------------------------------------ |
---|
197 | |
---|
198 | protected: |
---|
199 | // Select model in run time |
---|
200 | inline G4VEmModel* SelectModel(G4double kinEnergy); |
---|
201 | |
---|
202 | public: |
---|
203 | // Select model in run time |
---|
204 | inline G4VEmModel* SelectModelForMaterial(G4double kinEnergy, |
---|
205 | size_t& idxRegion) const; |
---|
206 | |
---|
207 | // Add model for region, smaller value of order defines which |
---|
208 | // model will be selected for a given energy interval |
---|
209 | void AddEmModel(G4int order, G4VEmModel*, const G4Region* region = 0); |
---|
210 | |
---|
211 | // Access to models by index |
---|
212 | G4VEmModel* GetModelByIndex(G4int idx = 0, G4bool ver = false); |
---|
213 | |
---|
214 | //------------------------------------------------------------------------ |
---|
215 | // Get/Set parameters for simulation of multiple scattering |
---|
216 | //------------------------------------------------------------------------ |
---|
217 | |
---|
218 | inline G4bool LateralDisplasmentFlag() const; |
---|
219 | inline void SetLateralDisplasmentFlag(G4bool val); |
---|
220 | |
---|
221 | inline G4double Skin() const; |
---|
222 | inline void SetSkin(G4double val); |
---|
223 | |
---|
224 | inline G4double RangeFactor() const; |
---|
225 | inline void SetRangeFactor(G4double val); |
---|
226 | |
---|
227 | inline G4double GeomFactor() const; |
---|
228 | inline void SetGeomFactor(G4double val); |
---|
229 | |
---|
230 | inline G4double PolarAngleLimit() const; |
---|
231 | inline void SetPolarAngleLimit(G4double val); |
---|
232 | |
---|
233 | inline G4MscStepLimitType StepLimitType() const; |
---|
234 | inline void SetStepLimitType(G4MscStepLimitType val); |
---|
235 | |
---|
236 | //------------------------------------------------------------------------ |
---|
237 | // Run time methods |
---|
238 | //------------------------------------------------------------------------ |
---|
239 | |
---|
240 | protected: |
---|
241 | |
---|
242 | // This method is not used for tracking, it returns mean free path value |
---|
243 | G4double GetMeanFreePath(const G4Track& track, |
---|
244 | G4double, |
---|
245 | G4ForceCondition* condition); |
---|
246 | |
---|
247 | // This method is not used for tracking, it returns step limit |
---|
248 | G4double GetContinuousStepLimit(const G4Track& track, |
---|
249 | G4double previousStepSize, |
---|
250 | G4double currentMinimalStep, |
---|
251 | G4double& currentSafety); |
---|
252 | |
---|
253 | // This method returns inversed transport cross section |
---|
254 | inline G4double GetLambda(const G4ParticleDefinition* p, |
---|
255 | G4double& kineticEnergy); |
---|
256 | |
---|
257 | // This method is used for tracking, it returns step limit |
---|
258 | inline G4double GetMscContinuousStepLimit(const G4Track& track, |
---|
259 | G4double scaledKinEnergy, |
---|
260 | G4double currentMinimalStep, |
---|
261 | G4double& currentSafety); |
---|
262 | |
---|
263 | // defines current material in run time |
---|
264 | inline void DefineMaterial(const G4MaterialCutsCouple* couple); |
---|
265 | |
---|
266 | inline const G4MaterialCutsCouple* CurrentMaterialCutsCouple() const; |
---|
267 | |
---|
268 | private: |
---|
269 | |
---|
270 | // hide assignment operator |
---|
271 | G4VMultipleScattering(G4VMultipleScattering &); |
---|
272 | G4VMultipleScattering & operator=(const G4VMultipleScattering &right); |
---|
273 | |
---|
274 | // ======== Parameters of the class fixed at construction ========= |
---|
275 | |
---|
276 | G4EmModelManager* modelManager; |
---|
277 | G4bool buildLambdaTable; |
---|
278 | |
---|
279 | // ======== Parameters of the class fixed at initialisation ======= |
---|
280 | |
---|
281 | G4PhysicsTable* theLambdaTable; |
---|
282 | const G4ParticleDefinition* firstParticle; |
---|
283 | |
---|
284 | G4MscStepLimitType stepLimit; |
---|
285 | |
---|
286 | G4double minKinEnergy; |
---|
287 | G4double maxKinEnergy; |
---|
288 | G4double skin; |
---|
289 | G4double facrange; |
---|
290 | G4double facgeom; |
---|
291 | G4double polarAngleLimit; |
---|
292 | |
---|
293 | G4int nBins; |
---|
294 | |
---|
295 | G4bool latDisplasment; |
---|
296 | |
---|
297 | // ======== Cashed values - may be state dependent ================ |
---|
298 | |
---|
299 | protected: |
---|
300 | |
---|
301 | G4GPILSelection valueGPILSelectionMSC; |
---|
302 | G4ParticleChangeForMSC fParticleChange; |
---|
303 | |
---|
304 | private: |
---|
305 | |
---|
306 | G4VMscModel* currentModel; |
---|
307 | |
---|
308 | // cache |
---|
309 | const G4ParticleDefinition* currentParticle; |
---|
310 | const G4MaterialCutsCouple* currentCouple; |
---|
311 | size_t currentMaterialIndex; |
---|
312 | |
---|
313 | }; |
---|
314 | |
---|
315 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
316 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
317 | |
---|
318 | inline G4double G4VMultipleScattering::ContinuousStepLimit( |
---|
319 | const G4Track& track, |
---|
320 | G4double previousStepSize, |
---|
321 | G4double currentMinimalStep, |
---|
322 | G4double& currentSafety) |
---|
323 | { |
---|
324 | return GetMscContinuousStepLimit(track,previousStepSize,currentMinimalStep, |
---|
325 | currentSafety); |
---|
326 | } |
---|
327 | |
---|
328 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
329 | |
---|
330 | inline void G4VMultipleScattering::SetBinning(G4int nbins) |
---|
331 | { |
---|
332 | nBins = nbins; |
---|
333 | } |
---|
334 | |
---|
335 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
336 | |
---|
337 | inline G4int G4VMultipleScattering::Binning() const |
---|
338 | { |
---|
339 | return nBins; |
---|
340 | } |
---|
341 | |
---|
342 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
343 | |
---|
344 | inline void G4VMultipleScattering::SetMinKinEnergy(G4double e) |
---|
345 | { |
---|
346 | minKinEnergy = e; |
---|
347 | } |
---|
348 | |
---|
349 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
350 | |
---|
351 | inline G4double G4VMultipleScattering::MinKinEnergy() const |
---|
352 | { |
---|
353 | return minKinEnergy; |
---|
354 | } |
---|
355 | |
---|
356 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
357 | |
---|
358 | inline void G4VMultipleScattering::SetMaxKinEnergy(G4double e) |
---|
359 | { |
---|
360 | maxKinEnergy = e; |
---|
361 | } |
---|
362 | |
---|
363 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
364 | |
---|
365 | inline G4double G4VMultipleScattering::MaxKinEnergy() const |
---|
366 | { |
---|
367 | return maxKinEnergy; |
---|
368 | } |
---|
369 | |
---|
370 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
371 | |
---|
372 | inline void G4VMultipleScattering::SetBuildLambdaTable(G4bool val) |
---|
373 | { |
---|
374 | buildLambdaTable = val; |
---|
375 | } |
---|
376 | |
---|
377 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
378 | |
---|
379 | inline G4PhysicsTable* G4VMultipleScattering::LambdaTable() const |
---|
380 | { |
---|
381 | return theLambdaTable; |
---|
382 | } |
---|
383 | |
---|
384 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
385 | |
---|
386 | inline const G4ParticleDefinition* G4VMultipleScattering::Particle() const |
---|
387 | { |
---|
388 | return currentParticle; |
---|
389 | } |
---|
390 | |
---|
391 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
392 | |
---|
393 | inline G4VEmModel* G4VMultipleScattering::SelectModel(G4double kinEnergy) |
---|
394 | { |
---|
395 | return modelManager->SelectModel(kinEnergy, currentMaterialIndex); |
---|
396 | } |
---|
397 | |
---|
398 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
399 | |
---|
400 | inline G4VEmModel* G4VMultipleScattering::SelectModelForMaterial( |
---|
401 | G4double kinEnergy, size_t& idxRegion) const |
---|
402 | { |
---|
403 | return modelManager->SelectModel(kinEnergy, idxRegion); |
---|
404 | } |
---|
405 | |
---|
406 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
407 | |
---|
408 | inline G4bool G4VMultipleScattering::LateralDisplasmentFlag() const |
---|
409 | { |
---|
410 | return latDisplasment; |
---|
411 | } |
---|
412 | |
---|
413 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
414 | |
---|
415 | inline void G4VMultipleScattering::SetLateralDisplasmentFlag(G4bool val) |
---|
416 | { |
---|
417 | latDisplasment = val; |
---|
418 | } |
---|
419 | |
---|
420 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
421 | |
---|
422 | inline G4double G4VMultipleScattering::Skin() const |
---|
423 | { |
---|
424 | return skin; |
---|
425 | } |
---|
426 | |
---|
427 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
428 | |
---|
429 | inline void G4VMultipleScattering::SetSkin(G4double val) |
---|
430 | { |
---|
431 | if(val < 1.0) skin = 0.0; |
---|
432 | else skin = val; |
---|
433 | } |
---|
434 | |
---|
435 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
436 | |
---|
437 | inline G4double G4VMultipleScattering::RangeFactor() const |
---|
438 | { |
---|
439 | return facrange; |
---|
440 | } |
---|
441 | |
---|
442 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
443 | |
---|
444 | inline void G4VMultipleScattering::SetRangeFactor(G4double val) |
---|
445 | { |
---|
446 | if(val > 0.0) facrange = val; |
---|
447 | } |
---|
448 | |
---|
449 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
450 | |
---|
451 | inline G4double G4VMultipleScattering::GeomFactor() const |
---|
452 | { |
---|
453 | return facgeom; |
---|
454 | } |
---|
455 | |
---|
456 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
457 | |
---|
458 | inline void G4VMultipleScattering::SetGeomFactor(G4double val) |
---|
459 | { |
---|
460 | if(val > 0.0) facgeom = val; |
---|
461 | } |
---|
462 | |
---|
463 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
464 | |
---|
465 | inline G4double G4VMultipleScattering::PolarAngleLimit() const |
---|
466 | { |
---|
467 | return polarAngleLimit; |
---|
468 | } |
---|
469 | |
---|
470 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
471 | |
---|
472 | inline void G4VMultipleScattering::SetPolarAngleLimit(G4double val) |
---|
473 | { |
---|
474 | if(val < 0.0) polarAngleLimit = 0.0; |
---|
475 | else if(val > pi) polarAngleLimit = pi; |
---|
476 | else polarAngleLimit = val; |
---|
477 | } |
---|
478 | |
---|
479 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
480 | |
---|
481 | inline G4MscStepLimitType G4VMultipleScattering::StepLimitType() const |
---|
482 | { |
---|
483 | return stepLimit; |
---|
484 | } |
---|
485 | |
---|
486 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
487 | |
---|
488 | inline void G4VMultipleScattering::SetStepLimitType(G4MscStepLimitType val) |
---|
489 | { |
---|
490 | stepLimit = val; |
---|
491 | if(val == fMinimal) facrange = 0.2; |
---|
492 | } |
---|
493 | |
---|
494 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
495 | |
---|
496 | inline |
---|
497 | G4double G4VMultipleScattering::GetLambda(const G4ParticleDefinition* p, |
---|
498 | G4double& e) |
---|
499 | { |
---|
500 | G4double x; |
---|
501 | if(theLambdaTable) { |
---|
502 | G4bool b; |
---|
503 | x = ((*theLambdaTable)[currentMaterialIndex])->GetValue(e, b); |
---|
504 | } else { |
---|
505 | x = currentModel->CrossSection(currentCouple,p,e); |
---|
506 | } |
---|
507 | if(x > DBL_MIN) x = 1./x; |
---|
508 | else x = DBL_MAX; |
---|
509 | return x; |
---|
510 | } |
---|
511 | |
---|
512 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
513 | |
---|
514 | inline G4double G4VMultipleScattering::GetMscContinuousStepLimit( |
---|
515 | const G4Track& track, |
---|
516 | G4double scaledKinEnergy, |
---|
517 | G4double currentMinimalStep, |
---|
518 | G4double&) |
---|
519 | { |
---|
520 | G4double x = currentMinimalStep; |
---|
521 | DefineMaterial(track.GetMaterialCutsCouple()); |
---|
522 | currentModel = static_cast<G4VMscModel*>(SelectModel(scaledKinEnergy)); |
---|
523 | if(x > 0.0 && scaledKinEnergy > 0.0) { |
---|
524 | G4double tPathLength = |
---|
525 | currentModel->ComputeTruePathLengthLimit(track, theLambdaTable, x); |
---|
526 | if (tPathLength < x) valueGPILSelectionMSC = CandidateForSelection; |
---|
527 | x = currentModel->ComputeGeomPathLength(tPathLength); |
---|
528 | // G4cout << "tPathLength= " << tPathLength |
---|
529 | // << " stepLimit= " << x |
---|
530 | // << " currentMinimalStep= " << currentMinimalStep<< G4endl; |
---|
531 | } |
---|
532 | return x; |
---|
533 | } |
---|
534 | |
---|
535 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
536 | |
---|
537 | inline |
---|
538 | void G4VMultipleScattering::DefineMaterial(const G4MaterialCutsCouple* couple) |
---|
539 | { |
---|
540 | if(couple != currentCouple) { |
---|
541 | currentCouple = couple; |
---|
542 | currentMaterialIndex = couple->GetIndex(); |
---|
543 | } |
---|
544 | } |
---|
545 | |
---|
546 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
547 | |
---|
548 | inline const G4MaterialCutsCouple* |
---|
549 | G4VMultipleScattering::CurrentMaterialCutsCouple() const |
---|
550 | { |
---|
551 | return currentCouple; |
---|
552 | } |
---|
553 | |
---|
554 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
555 | |
---|
556 | #endif |
---|