source: trunk/source/processes/electromagnetic/utils/include/G4VEnergyLossProcess.hh@ 819

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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: G4VEnergyLossProcess.hh,v 1.76 2007/11/07 18:38:49 vnivanch Exp $
27// GEANT4 tag $Name:
28//
29// -------------------------------------------------------------------
30//
31// GEANT4 Class header file
32//
33//
34// File name: G4VEnergyLossProcess
35//
36// Author: Vladimir Ivanchenko on base of Laszlo Urban code
37//
38// Creation date: 03.01.2002
39//
40// Modifications:
41//
42// 26-12-02 Secondary production moved to derived classes (V.Ivanchenko)
43// 20-01-03 Migrade to cut per region (V.Ivanchenko)
44// 24-01-03 Make models region aware (V.Ivanchenko)
45// 05-02-03 Fix compilation warnings (V.Ivanchenko)
46// 13-02-03 SubCutoffProcessors defined for regions (V.Ivanchenko)
47// 17-02-03 Fix problem of store/restore tables (V.Ivanchenko)
48// 26-02-03 Region dependent step limit (V.Ivanchenko)
49// 26-03-03 Add GetDEDXDispersion (V.Ivanchenko)
50// 09-04-03 Fix problem of negative range limit for non integral (V.Ivanchenko)
51// 13-05-03 Add calculation of precise range (V.Ivanchenko)
52// 21-07-03 Add UpdateEmModel method (V.Ivanchenko)
53// 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko)
54// 14-01-04 Activate precise range calculation (V.Ivanchenko)
55// 10-03-04 Fix problem of step limit calculation (V.Ivanchenko)
56// 30-06-04 make destructor virtual (V.Ivanchenko)
57// 05-07-04 fix problem of GenericIons seen at small cuts (V.Ivanchenko)
58// 03-08-04 Add DEDX table to all processes for control on integral range(VI)
59// 06-08-04 Clear up names of member functions (V.Ivanchenko)
60// 27-08-04 Add NeedBuildTables method (V.Ivanchneko)
61// 09-09-04 Bug fix for the integral mode with 2 peaks (V.Ivanchneko)
62// 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivanchenko)
63// 08-04-05 Major optimisation of internal interfaces (V.Ivanchenko)
64// 11-04-05 Use MaxSecondaryEnergy from a model (V.Ivanchenko)
65// 10-01-05 Remove SetStepLimits (V.Ivanchenko)
66// 10-01-06 PreciseRange -> CSDARange (V.Ivantchenko)
67// 13-01-06 Remove AddSubCutSecondaries and cleanup (V.Ivantchenko)
68// 20-01-06 Introduce G4EmTableType and reducing number of methods (VI)
69// 26-01-06 Add public method GetCSDARange (V.Ivanchenko)
70// 22-03-06 Add SetDynamicMassCharge (V.Ivanchenko)
71// 23-03-06 Use isIonisation flag (V.Ivanchenko)
72// 13-05-06 Add method to access model by index (V.Ivanchenko)
73// 14-01-07 add SetEmModel(index) and SetFluctModel() (mma)
74// 15-01-07 Add separate ionisation tables and reorganise get/set methods for
75// dedx tables (V.Ivanchenko)
76// 13-03-07 use SafetyHelper instead of navigator (V.Ivanchenko)
77// 27-07-07 use stl vector for emModels instead of C-array (V.Ivanchenko)
78// 25-09-07 More accurate handling zero xsect in
79// PostStepGetPhysicalInteractionLength (V.Ivanchenko)
80// 27-10-07 Virtual functions moved to source (V.Ivanchenko)
81//
82// Class Description:
83//
84// It is the unified energy loss process it calculates the continuous
85// energy loss for charged particles using a set of Energy Loss
86// models valid for different energy regions. There are a possibility
87// to create and access to dE/dx and range tables, or to calculate
88// that information on fly.
89
90// -------------------------------------------------------------------
91//
92
93#ifndef G4VEnergyLossProcess_h
94#define G4VEnergyLossProcess_h 1
95
96#include "G4VContinuousDiscreteProcess.hh"
97#include "globals.hh"
98#include "G4Material.hh"
99#include "G4MaterialCutsCouple.hh"
100#include "G4Track.hh"
101#include "G4EmModelManager.hh"
102#include "G4UnitsTable.hh"
103#include "G4ParticleChangeForLoss.hh"
104#include "G4EmTableType.hh"
105#include "G4PhysicsTable.hh"
106#include "G4PhysicsVector.hh"
107
108class G4Step;
109class G4ParticleDefinition;
110class G4VEmModel;
111class G4VEmFluctuationModel;
112class G4DataVector;
113class G4Region;
114class G4SafetyHelper;
115
116//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
117
118class G4VEnergyLossProcess : public G4VContinuousDiscreteProcess
119{
120public:
121
122 G4VEnergyLossProcess(const G4String& name = "EnergyLoss",
123 G4ProcessType type = fElectromagnetic);
124
125 virtual ~G4VEnergyLossProcess();
126
127 //------------------------------------------------------------------------
128 // Virtual methods to be implemented in concrete processes
129 //------------------------------------------------------------------------
130
131 virtual G4bool IsApplicable(const G4ParticleDefinition& p) = 0;
132
133 virtual void PrintInfo() = 0;
134
135protected:
136
137 virtual void InitialiseEnergyLossProcess(const G4ParticleDefinition*,
138 const G4ParticleDefinition*) = 0;
139
140 //------------------------------------------------------------------------
141 // Methods with standard implementation; may be overwritten if needed
142 //------------------------------------------------------------------------
143protected:
144
145 virtual G4double MinPrimaryEnergy(const G4ParticleDefinition*,
146 const G4Material*, G4double cut);
147
148 virtual void CorrectionsAlongStep(const G4MaterialCutsCouple*,
149 const G4DynamicParticle*,
150 G4double& eloss,
151 G4double& length);
152
153 //------------------------------------------------------------------------
154 // Generic methods common to all ContinuousDiscrete processes
155 //------------------------------------------------------------------------
156public:
157
158 void PrintInfoDefinition();
159
160 void PreparePhysicsTable(const G4ParticleDefinition&);
161
162 void BuildPhysicsTable(const G4ParticleDefinition&);
163
164 G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&);
165
166 G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step&);
167
168 // Store PhysicsTable in a file.
169 // Return false in case of failure at I/O
170 G4bool StorePhysicsTable(const G4ParticleDefinition*,
171 const G4String& directory,
172 G4bool ascii = false);
173
174 // Retrieve Physics from a file.
175 // (return true if the Physics Table can be build by using file)
176 // (return false if the process has no functionality or in case of failure)
177 // File name should is constructed as processName+particleName and the
178 // should be placed under the directory specifed by the argument.
179 G4bool RetrievePhysicsTable(const G4ParticleDefinition*,
180 const G4String& directory,
181 G4bool ascii);
182
183protected:
184
185 G4double GetMeanFreePath(const G4Track& track,
186 G4double previousStepSize,
187 G4ForceCondition* condition);
188
189 G4double GetContinuousStepLimit(const G4Track& track,
190 G4double previousStepSize,
191 G4double currentMinimumStep,
192 G4double& currentSafety);
193
194 //------------------------------------------------------------------------
195 // Specific methods for along/post step EM processes
196 //------------------------------------------------------------------------
197
198public:
199
200 void AddCollaborativeProcess(G4VEnergyLossProcess*);
201
202 void SampleSubCutSecondaries(std::vector<G4Track*>&, const G4Step&,
203 G4VEmModel* model, G4int matIdx,
204 G4double& extraEdep);
205
206 G4double GetDEDXDispersion(const G4MaterialCutsCouple *couple,
207 const G4DynamicParticle* dp,
208 G4double length);
209
210
211 virtual G4double AlongStepGetPhysicalInteractionLength(
212 const G4Track&,
213 G4double previousStepSize,
214 G4double currentMinimumStep,
215 G4double& currentSafety,
216 G4GPILSelection* selection
217 );
218
219 virtual G4double PostStepGetPhysicalInteractionLength(
220 const G4Track& track,
221 G4double previousStepSize,
222 G4ForceCondition* condition
223 );
224
225 //------------------------------------------------------------------------
226 // Specific methods to build and access Physics Tables
227 //------------------------------------------------------------------------
228
229 G4double MicroscopicCrossSection(G4double kineticEnergy,
230 const G4MaterialCutsCouple* couple);
231
232 G4PhysicsTable* BuildDEDXTable(G4EmTableType tType = fRestricted);
233
234 G4PhysicsTable* BuildLambdaTable(G4EmTableType tType = fRestricted);
235
236 void SetDEDXTable(G4PhysicsTable* p, G4EmTableType tType);
237 void SetCSDARangeTable(G4PhysicsTable* pRange);
238 void SetRangeTableForLoss(G4PhysicsTable* p);
239 void SetInverseRangeTable(G4PhysicsTable* p);
240 void SetSecondaryRangeTable(G4PhysicsTable* p);
241
242 void SetLambdaTable(G4PhysicsTable* p);
243 void SetSubLambdaTable(G4PhysicsTable* p);
244
245 // Binning for dEdx, range, inverse range and labda tables
246 inline void SetDEDXBinning(G4int nbins);
247 inline void SetLambdaBinning(G4int nbins);
248
249 // Binning for dEdx, range, and inverse range tables
250 inline void SetDEDXBinningForCSDARange(G4int nbins);
251
252 // Min kinetic energy for tables
253 inline void SetMinKinEnergy(G4double e);
254 inline G4double MinKinEnergy() const;
255
256 // Max kinetic energy for tables
257 inline void SetMaxKinEnergy(G4double e);
258 inline G4double MaxKinEnergy() const;
259
260 // Max kinetic energy for tables
261 inline void SetMaxKinEnergyForCSDARange(G4double e);
262
263 // Access to specific tables
264 inline G4PhysicsTable* DEDXTable() const;
265 inline G4PhysicsTable* DEDXTableForSubsec() const;
266 inline G4PhysicsTable* DEDXunRestrictedTable() const;
267 inline G4PhysicsTable* IonisationTable() const;
268 inline G4PhysicsTable* IonisationTableForSubsec() const;
269 inline G4PhysicsTable* CSDARangeTable() const;
270 inline G4PhysicsTable* RangeTableForLoss() const;
271 inline G4PhysicsTable* InverseRangeTable() const;
272 inline G4PhysicsTable* LambdaTable();
273 inline G4PhysicsTable* SubLambdaTable();
274
275 // Return values for given G4MaterialCutsCouple
276 inline G4double GetDEDX(G4double& kineticEnergy, const G4MaterialCutsCouple*);
277 inline G4double GetDEDXForSubsec(G4double& kineticEnergy,
278 const G4MaterialCutsCouple*);
279 inline G4double GetRange(G4double& kineticEnergy, const G4MaterialCutsCouple*);
280 inline G4double GetCSDARange(G4double& kineticEnergy, const G4MaterialCutsCouple*);
281 inline G4double GetRangeForLoss(G4double& kineticEnergy, const G4MaterialCutsCouple*);
282 inline G4double GetKineticEnergy(G4double& range, const G4MaterialCutsCouple*);
283 inline G4double GetLambda(G4double& kineticEnergy, const G4MaterialCutsCouple*);
284
285 inline G4bool TablesAreBuilt() const;
286
287 //------------------------------------------------------------------------
288 // Define and access particle type
289 //------------------------------------------------------------------------
290
291 inline void SetBaseParticle(const G4ParticleDefinition* p);
292 inline const G4ParticleDefinition* Particle() const;
293 inline const G4ParticleDefinition* BaseParticle() const;
294 inline const G4ParticleDefinition* SecondaryParticle() const;
295
296 //------------------------------------------------------------------------
297 // Specific methods to set, access, modify models
298 //------------------------------------------------------------------------
299
300 // Add EM model coupled with fluctuation model for the region
301 inline void AddEmModel(G4int, G4VEmModel*, G4VEmFluctuationModel* fluc = 0,
302 const G4Region* region = 0);
303
304 // Assign a model to a process
305 inline void SetEmModel(G4VEmModel*, G4int index=1);
306
307 // return the assigned model
308 inline G4VEmModel* EmModel(G4int index=1);
309
310 // Assign a fluctuation model to a process
311 inline void SetFluctModel(G4VEmFluctuationModel*);
312
313 // return the assigned fluctuation model
314 inline G4VEmFluctuationModel* FluctModel();
315
316 // Define new energy range for the model identified by the name
317 inline void UpdateEmModel(const G4String&, G4double, G4double);
318
319 // Access to models
320 inline G4VEmModel* GetModelByIndex(G4int idx = 0);
321
322 inline G4int NumberOfModels();
323
324 //------------------------------------------------------------------------
325 // Get/set parameters used for simulation of energy loss
326 //------------------------------------------------------------------------
327
328 inline void SetLossFluctuations(G4bool val);
329 inline void SetRandomStep(G4bool val);
330 inline void SetIntegral(G4bool val);
331 inline G4bool IsIntegral() const;
332
333 // Set/Get flag "isIonisation"
334 inline void SetIonisation(G4bool val);
335 inline G4bool IsIonisationProcess() const;
336
337 // Redefine parameteters for stepping control
338 //
339 inline void SetLinearLossLimit(G4double val);
340 inline void SetMinSubRange(G4double val);
341 inline void SetStepFunction(G4double v1, G4double v2);
342 inline void SetLambdaFactor(G4double val);
343
344
345 // Add subcutoff option for the region
346 void ActivateSubCutoff(G4bool val, const G4Region* region = 0);
347
348 inline G4int NumberOfSubCutoffRegions() const;
349
350 // Activate deexcitation code
351 virtual void ActivateDeexcitation(G4bool, const G4Region* region = 0);
352
353 //------------------------------------------------------------------------
354 // Run time method for simulation of ionisation
355 //------------------------------------------------------------------------
356
357 inline G4double SampleRange();
358
359 inline G4VEmModel* SelectModelForMaterial(G4double kinEnergy, size_t& idx) const;
360
361
362 // Set scaling parameters
363 inline void SetDynamicMassCharge(G4double massratio, G4double charge2ratio);
364
365 // Helper functions
366 inline G4double MeanFreePath(const G4Track& track);
367
368 inline G4double ContinuousStepLimit(const G4Track& track,
369 G4double previousStepSize,
370 G4double currentMinimumStep,
371 G4double& currentSafety);
372
373protected:
374
375 G4PhysicsVector* LambdaPhysicsVector(const G4MaterialCutsCouple*,
376 G4double cut);
377
378 inline virtual void InitialiseMassCharge(const G4Track&);
379
380 inline void SetParticle(const G4ParticleDefinition* p);
381
382 inline void SetSecondaryParticle(const G4ParticleDefinition* p);
383
384 inline G4VEmModel* SelectModel(G4double kinEnergy);
385
386 inline size_t CurrentMaterialCutsCoupleIndex() const;
387
388 inline G4double GetCurrentRange() const;
389
390private:
391
392 // Clear tables
393 void Clear();
394
395 inline void InitialiseStep(const G4Track&);
396
397 inline void DefineMaterial(const G4MaterialCutsCouple* couple);
398
399 // Returnd values for scaled energy and base particles mass
400 //
401 inline G4double GetDEDXForScaledEnergy(G4double scaledKinEnergy);
402 inline G4double GetSubDEDXForScaledEnergy(G4double scaledKinEnergy);
403 inline G4double GetIonisationForScaledEnergy(G4double scaledKinEnergy);
404 inline G4double GetSubIonisationForScaledEnergy(G4double scaledKinEnergy);
405 inline G4double GetScaledRangeForScaledEnergy(G4double scaledKinEnergy);
406 inline G4double GetLimitScaledRangeForScaledEnergy(G4double scaledKinEnergy);
407 inline G4double GetLambdaForScaledEnergy(G4double scaledKinEnergy);
408 inline G4double ScaledKinEnergyForLoss(G4double range);
409 inline void ComputeLambdaForScaledEnergy(G4double scaledKinEnergy);
410
411 // hide assignment operator
412
413 G4VEnergyLossProcess(G4VEnergyLossProcess &);
414 G4VEnergyLossProcess & operator=(const G4VEnergyLossProcess &right);
415
416// =====================================================================
417
418protected:
419
420 G4ParticleChangeForLoss fParticleChange;
421
422private:
423
424 G4EmModelManager* modelManager;
425 std::vector<G4VEmModel*> emModels;
426 G4VEmFluctuationModel* fluctModel;
427 std::vector<const G4Region*> scoffRegions;
428 G4int nSCoffRegions;
429 G4int* idxSCoffRegions;
430 std::vector<G4DynamicParticle*> secParticles;
431 std::vector<G4Track*> scTracks;
432 std::vector<G4VEnergyLossProcess*> scProcesses;
433 G4int nProcesses;
434
435 // tables and vectors
436 G4PhysicsTable* theDEDXTable;
437 G4PhysicsTable* theDEDXSubTable;
438 G4PhysicsTable* theDEDXunRestrictedTable;
439 G4PhysicsTable* theIonisationTable;
440 G4PhysicsTable* theIonisationSubTable;
441 G4PhysicsTable* theRangeTableForLoss;
442 G4PhysicsTable* theCSDARangeTable;
443 G4PhysicsTable* theSecondaryRangeTable;
444 G4PhysicsTable* theInverseRangeTable;
445 G4PhysicsTable* theLambdaTable;
446 G4PhysicsTable* theSubLambdaTable;
447 G4double* theDEDXAtMaxEnergy;
448 G4double* theRangeAtMaxEnergy;
449 G4double* theEnergyOfCrossSectionMax;
450 G4double* theCrossSectionMax;
451
452 const G4DataVector* theCuts;
453 const G4DataVector* theSubCuts;
454
455 G4SafetyHelper* safetyHelper;
456
457 const G4ParticleDefinition* particle;
458 const G4ParticleDefinition* baseParticle;
459 const G4ParticleDefinition* secondaryParticle;
460 const G4ParticleDefinition* theElectron;
461 const G4ParticleDefinition* thePositron;
462
463 G4PhysicsVector* vstrag;
464
465 // cash
466 const G4Material* currentMaterial;
467 const G4MaterialCutsCouple* currentCouple;
468 size_t currentMaterialIndex;
469
470 G4int nBins;
471 G4int nBinsCSDA;
472 G4int nWarnings;
473
474 G4double lowestKinEnergy;
475 G4double minKinEnergy;
476 G4double maxKinEnergy;
477 G4double maxKinEnergyCSDA;
478
479 G4double massRatio;
480 G4double reduceFactor;
481 G4double chargeSquare;
482 G4double chargeSqRatio;
483
484 G4double preStepLambda;
485 G4double fRange;
486 G4double preStepKinEnergy;
487 G4double preStepScaledEnergy;
488 G4double linLossLimit;
489 G4double minSubRange;
490 G4double dRoverRange;
491 G4double finalRange;
492 G4double lambdaFactor;
493 G4double mfpKinEnergy;
494
495 G4GPILSelection aGPILSelection;
496
497 G4bool lossFluctuationFlag;
498 G4bool rndmStepFlag;
499 G4bool tablesAreBuilt;
500 G4bool integral;
501 G4bool isIonisation;
502 G4bool useSubCutoff;
503};
504
505//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
506//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
507
508inline void G4VEnergyLossProcess::DefineMaterial(
509 const G4MaterialCutsCouple* couple)
510{
511 if(couple != currentCouple) {
512 currentCouple = couple;
513 currentMaterial = couple->GetMaterial();
514 currentMaterialIndex = couple->GetIndex();
515 mfpKinEnergy = DBL_MAX;
516 }
517}
518
519//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
520
521inline void G4VEnergyLossProcess::InitialiseStep(const G4Track& track)
522{
523 InitialiseMassCharge(track);
524 preStepKinEnergy = track.GetKineticEnergy();
525 preStepScaledEnergy = preStepKinEnergy*massRatio;
526 DefineMaterial(track.GetMaterialCutsCouple());
527 if (theNumberOfInteractionLengthLeft < 0.0) mfpKinEnergy = DBL_MAX;
528}
529
530//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
531
532inline void G4VEnergyLossProcess::InitialiseMassCharge(const G4Track&)
533{}
534
535//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
536
537inline G4double G4VEnergyLossProcess::GetDEDX(G4double& kineticEnergy,
538 const G4MaterialCutsCouple* couple)
539{
540 DefineMaterial(couple);
541 return GetDEDXForScaledEnergy(kineticEnergy*massRatio);
542}
543
544//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
545
546inline G4double G4VEnergyLossProcess::GetDEDXForSubsec(G4double& kineticEnergy,
547 const G4MaterialCutsCouple* couple)
548{
549 DefineMaterial(couple);
550 return GetSubDEDXForScaledEnergy(kineticEnergy*massRatio);
551}
552
553//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
554
555inline G4double G4VEnergyLossProcess::GetDEDXForScaledEnergy(G4double e)
556{
557 G4bool b;
558 G4double x =
559 ((*theDEDXTable)[currentMaterialIndex]->GetValue(e, b))*chargeSqRatio;
560 if(e < minKinEnergy) x *= std::sqrt(e/minKinEnergy);
561 return x;
562}
563
564//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
565
566inline G4double G4VEnergyLossProcess::GetSubDEDXForScaledEnergy(G4double e)
567{
568 G4bool b;
569 G4double x =
570 ((*theDEDXSubTable)[currentMaterialIndex]->GetValue(e, b))*chargeSqRatio;
571 if(e < minKinEnergy) x *= std::sqrt(e/minKinEnergy);
572 return x;
573}
574
575//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
576
577inline G4double G4VEnergyLossProcess::GetIonisationForScaledEnergy(G4double e)
578{
579 G4bool b;
580 G4double x = 0.0;
581 // if(theIonisationTable) {
582 x = ((*theIonisationTable)[currentMaterialIndex]->GetValue(e, b))
583 *chargeSqRatio;
584 if(e < minKinEnergy) x *= std::sqrt(e/minKinEnergy);
585 //}
586 return x;
587}
588
589//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
590
591inline
592G4double G4VEnergyLossProcess::GetSubIonisationForScaledEnergy(G4double e)
593{
594 G4bool b;
595 G4double x = 0.0;
596 //if(theIonisationSubTable) {
597 x = ((*theIonisationSubTable)[currentMaterialIndex]->GetValue(e, b))
598 *chargeSqRatio;
599 if(e < minKinEnergy) x *= std::sqrt(e/minKinEnergy);
600 //}
601 return x;
602}
603
604//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
605
606inline G4double G4VEnergyLossProcess::GetRange(G4double& kineticEnergy,
607 const G4MaterialCutsCouple* couple)
608{
609 G4double x = fRange;
610 if(kineticEnergy != preStepKinEnergy || couple != currentCouple) {
611 DefineMaterial(couple);
612 if(theCSDARangeTable)
613 x = GetLimitScaledRangeForScaledEnergy(kineticEnergy*massRatio)
614 * reduceFactor;
615 else if(theRangeTableForLoss)
616 x = GetScaledRangeForScaledEnergy(kineticEnergy*massRatio)*reduceFactor;
617 }
618 return x;
619}
620
621//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
622
623inline G4double G4VEnergyLossProcess::GetCSDARange(
624 G4double& kineticEnergy, const G4MaterialCutsCouple* couple)
625{
626 DefineMaterial(couple);
627 G4double x = DBL_MAX;
628 if(theCSDARangeTable)
629 x = GetLimitScaledRangeForScaledEnergy(kineticEnergy*massRatio)
630 * reduceFactor;
631 return x;
632}
633
634//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
635
636inline G4double G4VEnergyLossProcess::GetLimitScaledRangeForScaledEnergy(
637 G4double e)
638{
639 G4bool b;
640 G4double x;
641
642 if (e < maxKinEnergyCSDA) {
643 x = ((*theCSDARangeTable)[currentMaterialIndex])->GetValue(e, b);
644 if(e < minKinEnergy) x *= std::sqrt(e/minKinEnergy);
645 } else {
646 x = theRangeAtMaxEnergy[currentMaterialIndex] +
647 (e - maxKinEnergyCSDA)/theDEDXAtMaxEnergy[currentMaterialIndex];
648 }
649 return x;
650}
651
652//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
653
654inline G4double G4VEnergyLossProcess::GetRangeForLoss(
655 G4double& kineticEnergy,
656 const G4MaterialCutsCouple* couple)
657{
658 DefineMaterial(couple);
659 G4double x = DBL_MAX;
660 if(theRangeTableForLoss)
661 x = GetScaledRangeForScaledEnergy(kineticEnergy*massRatio)*reduceFactor;
662 // G4cout << "Range from " << GetProcessName()
663 // << " e= " << kineticEnergy << " r= " << x << G4endl;
664 return x;
665}
666
667//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
668
669inline G4double G4VEnergyLossProcess::GetScaledRangeForScaledEnergy(G4double e)
670{
671 G4bool b;
672 G4double x = ((*theRangeTableForLoss)[currentMaterialIndex])->GetValue(e, b);
673 if(e < minKinEnergy) x *= std::sqrt(e/minKinEnergy);
674 return x;
675}
676
677//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
678
679inline G4double G4VEnergyLossProcess::GetKineticEnergy(
680 G4double& range,
681 const G4MaterialCutsCouple* couple)
682{
683 DefineMaterial(couple);
684 G4double r = range/reduceFactor;
685 G4double e = ScaledKinEnergyForLoss(r)/massRatio;
686 return e;
687}
688
689//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
690
691inline G4double G4VEnergyLossProcess::ScaledKinEnergyForLoss(G4double r)
692{
693 G4PhysicsVector* v = (*theInverseRangeTable)[currentMaterialIndex];
694 G4double rmin = v->GetLowEdgeEnergy(0);
695 G4double e = 0.0;
696 if(r >= rmin) {
697 G4bool b;
698 e = v->GetValue(r, b);
699 } else if(r > 0.0) {
700 G4double x = r/rmin;
701 e = minKinEnergy*x*x;
702 }
703 return e;
704}
705
706//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
707
708inline G4double G4VEnergyLossProcess::GetLambda(G4double& kineticEnergy,
709 const G4MaterialCutsCouple* couple)
710{
711 DefineMaterial(couple);
712 G4double x = 0.0;
713 if(theLambdaTable) x = GetLambdaForScaledEnergy(kineticEnergy*massRatio);
714 return x;
715}
716
717//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
718
719inline G4double G4VEnergyLossProcess::GetLambdaForScaledEnergy(G4double e)
720{
721 G4bool b;
722 return
723 chargeSqRatio*(((*theLambdaTable)[currentMaterialIndex])->GetValue(e, b));
724}
725
726//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
727
728inline void G4VEnergyLossProcess::ComputeLambdaForScaledEnergy(G4double e)
729{
730 mfpKinEnergy = theEnergyOfCrossSectionMax[currentMaterialIndex];
731 if (e <= mfpKinEnergy) {
732 preStepLambda = GetLambdaForScaledEnergy(e);
733
734 } else {
735 G4double e1 = e*lambdaFactor;
736 if(e1 > mfpKinEnergy) {
737 preStepLambda = GetLambdaForScaledEnergy(e);
738 G4double preStepLambda1 = GetLambdaForScaledEnergy(e1);
739 if(preStepLambda1 > preStepLambda) {
740 mfpKinEnergy = e1;
741 preStepLambda = preStepLambda1;
742 }
743 } else {
744 preStepLambda = chargeSqRatio*theCrossSectionMax[currentMaterialIndex];
745 }
746 }
747}
748
749//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
750
751inline G4double G4VEnergyLossProcess::ContinuousStepLimit(
752 const G4Track& track, G4double x, G4double y, G4double& z)
753{
754 G4GPILSelection sel;
755 return AlongStepGetPhysicalInteractionLength(track, x, y, z, &sel);
756}
757
758//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
759
760inline G4double G4VEnergyLossProcess::SampleRange()
761{
762 G4double e = amu_c2*preStepKinEnergy/particle->GetPDGMass();
763 G4bool b;
764 G4double s = fRange*std::pow(10.,vstrag->GetValue(e,b));
765 G4double x = fRange + G4RandGauss::shoot(0.0,s);
766 if(x > 0.0) fRange = x;
767 return fRange;
768}
769
770//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
771
772inline G4double G4VEnergyLossProcess::MeanFreePath(const G4Track& track)
773{
774 DefineMaterial(track.GetMaterialCutsCouple());
775 preStepLambda = GetLambdaForScaledEnergy(track.GetKineticEnergy()*massRatio);
776 G4double x = DBL_MAX;
777 if(DBL_MIN < preStepLambda) x = 1.0/preStepLambda;
778 return x;
779}
780
781//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
782
783inline G4double G4VEnergyLossProcess::MinPrimaryEnergy(
784 const G4ParticleDefinition*, const G4Material*, G4double cut)
785{
786 return cut;
787}
788
789//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
790
791inline G4VEmModel* G4VEnergyLossProcess::SelectModel(G4double kinEnergy)
792{
793 return modelManager->SelectModel(kinEnergy, currentMaterialIndex);
794}
795
796//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
797
798inline G4VEmModel* G4VEnergyLossProcess::SelectModelForMaterial(
799 G4double kinEnergy, size_t& idx) const
800{
801 return modelManager->SelectModel(kinEnergy, idx);
802}
803
804//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
805
806inline const G4ParticleDefinition* G4VEnergyLossProcess::Particle() const
807{
808 return particle;
809}
810
811//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
812
813inline const G4ParticleDefinition* G4VEnergyLossProcess::BaseParticle() const
814{
815 return baseParticle;
816}
817
818//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
819
820inline const G4ParticleDefinition* G4VEnergyLossProcess::SecondaryParticle() const
821{
822 return secondaryParticle;
823}
824
825//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
826
827inline void G4VEnergyLossProcess::CorrectionsAlongStep(
828 const G4MaterialCutsCouple*,
829 const G4DynamicParticle*,
830 G4double&,
831 G4double&)
832{}
833
834//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
835
836inline G4PhysicsTable* G4VEnergyLossProcess::DEDXTable() const
837{
838 return theDEDXTable;
839}
840
841//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
842
843inline G4PhysicsTable* G4VEnergyLossProcess::DEDXTableForSubsec() const
844{
845 return theDEDXSubTable;
846}
847
848//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
849
850inline G4PhysicsTable* G4VEnergyLossProcess::DEDXunRestrictedTable() const
851{
852 return theDEDXunRestrictedTable;
853}
854
855//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
856
857inline G4PhysicsTable* G4VEnergyLossProcess::IonisationTable() const
858{
859 G4PhysicsTable* t = theDEDXTable;
860 if(theIonisationTable) t = theIonisationTable;
861 return t;
862}
863
864//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
865
866inline G4PhysicsTable* G4VEnergyLossProcess::IonisationTableForSubsec() const
867{
868 G4PhysicsTable* t = theDEDXSubTable;
869 if(theIonisationSubTable) t = theIonisationSubTable;
870 return t;
871}
872
873//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
874
875inline G4PhysicsTable* G4VEnergyLossProcess::CSDARangeTable() const
876{
877 return theCSDARangeTable;
878}
879
880//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
881
882inline G4PhysicsTable* G4VEnergyLossProcess::RangeTableForLoss() const
883{
884 return theRangeTableForLoss;
885}
886
887//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
888
889inline G4PhysicsTable* G4VEnergyLossProcess::InverseRangeTable() const
890{
891 return theInverseRangeTable;
892}
893
894//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
895
896inline G4PhysicsTable* G4VEnergyLossProcess::LambdaTable()
897{
898 return theLambdaTable;
899}
900
901//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
902
903inline G4PhysicsTable* G4VEnergyLossProcess::SubLambdaTable()
904{
905 return theSubLambdaTable;
906}
907
908//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
909
910inline G4bool G4VEnergyLossProcess::IsIntegral() const
911{
912 return integral;
913}
914
915//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
916
917inline size_t G4VEnergyLossProcess::CurrentMaterialCutsCoupleIndex() const
918{
919 return currentMaterialIndex;
920}
921
922//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
923
924inline void G4VEnergyLossProcess::SetDynamicMassCharge(G4double massratio,
925 G4double charge2ratio)
926{
927 massRatio = massratio;
928 chargeSqRatio = charge2ratio;
929 chargeSquare = charge2ratio*eplus*eplus;
930 if(chargeSqRatio > 0.0) reduceFactor = 1.0/(chargeSqRatio*massRatio);
931}
932
933//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
934
935inline G4double G4VEnergyLossProcess::GetCurrentRange() const
936{
937 return fRange;
938}
939
940//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
941
942void G4VEnergyLossProcess::AddEmModel(G4int order, G4VEmModel* p,
943 G4VEmFluctuationModel* fluc,
944 const G4Region* region)
945{
946 modelManager->AddEmModel(order, p, fluc, region);
947 if(p) p->SetParticleChange(pParticleChange, fluc);
948}
949
950//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
951
952inline G4VEmModel* G4VEnergyLossProcess::GetModelByIndex(G4int idx)
953{
954 return modelManager->GetModel(idx);
955}
956
957//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
958
959inline G4int G4VEnergyLossProcess::NumberOfModels()
960{
961 return modelManager->NumberOfModels();
962}
963
964//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
965
966inline void G4VEnergyLossProcess::SetEmModel(G4VEmModel* p, G4int index)
967{
968 G4int n = emModels.size();
969 if(index >= n) for(G4int i=n; i<index+1; i++) {emModels.push_back(0);}
970 emModels[index] = p;
971}
972
973//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
974
975inline G4VEmModel* G4VEnergyLossProcess::EmModel(G4int index)
976{
977 G4VEmModel* p = 0;
978 if(index >= 0 && index < G4int(emModels.size())) p = emModels[index];
979 return p;
980}
981
982//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
983
984inline void G4VEnergyLossProcess::SetFluctModel(G4VEmFluctuationModel* p)
985{
986 fluctModel = p;
987}
988
989//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
990
991inline G4VEmFluctuationModel* G4VEnergyLossProcess::FluctModel()
992{
993 return fluctModel;
994}
995
996//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
997
998inline void G4VEnergyLossProcess::UpdateEmModel(const G4String& nam,
999 G4double emin, G4double emax)
1000{
1001 modelManager->UpdateEmModel(nam, emin, emax);
1002}
1003
1004//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1005
1006inline void G4VEnergyLossProcess::SetIntegral(G4bool val)
1007{
1008 integral = val;
1009}
1010
1011//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1012
1013inline void G4VEnergyLossProcess::SetParticle(const G4ParticleDefinition* p)
1014{
1015 particle = p;
1016}
1017
1018//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1019
1020inline void G4VEnergyLossProcess::SetBaseParticle(const G4ParticleDefinition* p)
1021{
1022 baseParticle = p;
1023}
1024
1025//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1026
1027inline void G4VEnergyLossProcess::SetSecondaryParticle(const G4ParticleDefinition* p)
1028{
1029 secondaryParticle = p;
1030}
1031
1032//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1033
1034inline void G4VEnergyLossProcess::SetLinearLossLimit(G4double val)
1035{
1036 linLossLimit = val;
1037}
1038
1039//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1040
1041inline void G4VEnergyLossProcess::SetLossFluctuations(G4bool val)
1042{
1043 lossFluctuationFlag = val;
1044}
1045
1046//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1047
1048inline void G4VEnergyLossProcess::SetRandomStep(G4bool val)
1049{
1050 rndmStepFlag = val;
1051}
1052
1053//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1054
1055inline void G4VEnergyLossProcess::SetMinSubRange(G4double val)
1056{
1057 minSubRange = val;
1058}
1059
1060//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1061
1062inline G4bool G4VEnergyLossProcess::TablesAreBuilt() const
1063{
1064 return tablesAreBuilt;
1065}
1066
1067//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1068
1069inline G4int G4VEnergyLossProcess::NumberOfSubCutoffRegions() const
1070{
1071 return nSCoffRegions;
1072}
1073
1074//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1075
1076inline void G4VEnergyLossProcess::SetDEDXBinning(G4int nbins)
1077{
1078 nBins = nbins;
1079}
1080
1081//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1082
1083inline void G4VEnergyLossProcess::SetLambdaBinning(G4int nbins)
1084{
1085 nBins = nbins;
1086}
1087
1088//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1089
1090inline void G4VEnergyLossProcess::SetDEDXBinningForCSDARange(G4int nbins)
1091{
1092 nBinsCSDA = nbins;
1093}
1094
1095//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1096
1097inline G4double G4VEnergyLossProcess::MinKinEnergy() const
1098{
1099 return minKinEnergy;
1100}
1101
1102//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1103
1104inline void G4VEnergyLossProcess::SetMinKinEnergy(G4double e)
1105{
1106 minKinEnergy = e;
1107}
1108
1109//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1110
1111inline void G4VEnergyLossProcess::SetMaxKinEnergy(G4double e)
1112{
1113 maxKinEnergy = e;
1114 if(e < maxKinEnergyCSDA) maxKinEnergyCSDA = e;
1115}
1116
1117//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1118
1119inline void G4VEnergyLossProcess::SetMaxKinEnergyForCSDARange(G4double e)
1120{
1121 maxKinEnergyCSDA = e;
1122}
1123
1124//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1125
1126inline G4double G4VEnergyLossProcess::MaxKinEnergy() const
1127{
1128 return maxKinEnergy;
1129}
1130
1131//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1132
1133inline void G4VEnergyLossProcess::SetLambdaFactor(G4double val)
1134{
1135 if(val > 0.0 && val <= 1.0) lambdaFactor = val;
1136}
1137
1138//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1139
1140inline void G4VEnergyLossProcess::SetIonisation(G4bool val)
1141{
1142 isIonisation = val;
1143 if(val) aGPILSelection = CandidateForSelection;
1144 else aGPILSelection = NotCandidateForSelection;
1145}
1146
1147//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1148
1149inline G4bool G4VEnergyLossProcess::IsIonisationProcess() const
1150{
1151 return isIonisation;
1152}
1153
1154//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1155
1156void G4VEnergyLossProcess::SetStepFunction(G4double v1, G4double v2)
1157{
1158 dRoverRange = v1;
1159 finalRange = v2;
1160 if (dRoverRange > 0.999) dRoverRange = 1.0;
1161 currentCouple = 0;
1162 mfpKinEnergy = DBL_MAX;
1163}
1164
1165//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1166
1167#endif
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