source: trunk/source/processes/electromagnetic/utils/src/G4VMultipleScattering.cc @ 1129

Last change on this file since 1129 was 1055, checked in by garnier, 15 years ago

maj sur la beta de geant 4.9.3
File size: 14.4 KB
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25//
26// $Id: G4VMultipleScattering.cc,v 1.66 2009/05/27 11:55:02 vnivanch Exp $
27// GEANT4 tag $Name: geant4-09-03-beta-cand-01 $
28//
29// -------------------------------------------------------------------
30//
31// GEANT4 Class file
32//
33//
34// File name:     G4VMultipleScattering
35//
36// Author:        Vladimir Ivanchenko on base of Laszlo Urban code
37//
38// Creation date: 25.03.2003
39//
40// Modifications:
41//
42// 13.04.03 Change printout (V.Ivanchenko)
43// 04-06-03 Fix compilation warnings (V.Ivanchenko)
44// 16-07-03 Use G4VMscModel interface (V.Ivanchenko)
45// 03-11-03 Fix initialisation problem in RetrievePhysicsTable (V.Ivanchenko)
46// 04-11-03 Update PrintInfoDefinition (V.Ivanchenko)
47// 01-03-04 SampleCosineTheta signature changed
48// 22-04-04 SampleCosineTheta signature changed back to original
49// 27-08-04 Add InitialiseForRun method (V.Ivanchneko)
50// 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
51// 11-03-05 Shift verbose level by 1 (V.Ivantchenko)
52// 15-04-05 optimize internal interface (V.Ivanchenko)
53// 15-04-05 remove boundary flag (V.Ivanchenko)
54// 27-10-05 introduce virtual function MscStepLimitation() (V.Ivanchenko)
55// 12-04-07 Add verbosity at destruction (V.Ivanchenko)
56// 27-10-07 Virtual functions moved to source (V.Ivanchenko)
57// 11-03-08 Set skin value does not effect step limit type (V.Ivanchenko)
58//
59// Class Description:
60//
61// It is the generic process of multiple scattering it includes common
62// part of calculations for all charged particles
63
64// -------------------------------------------------------------------
65//
66//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
67//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
68
69#include "G4VMultipleScattering.hh"
70#include "G4LossTableManager.hh"
71#include "G4Step.hh"
72#include "G4ParticleDefinition.hh"
73#include "G4VEmFluctuationModel.hh"
74#include "G4DataVector.hh"
75#include "G4PhysicsTable.hh"
76#include "G4PhysicsVector.hh"
77#include "G4PhysicsLogVector.hh"
78#include "G4UnitsTable.hh"
79#include "G4ProductionCutsTable.hh"
80#include "G4Region.hh"
81#include "G4RegionStore.hh"
82#include "G4PhysicsTableHelper.hh"
83#include "G4GenericIon.hh"
84#include "G4Electron.hh"
85#include "G4EmConfigurator.hh"
86
87//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
88
89G4VMultipleScattering::G4VMultipleScattering(const G4String& name, 
90                                             G4ProcessType type):
91  G4VContinuousDiscreteProcess(name, type),
92  buildLambdaTable(true),
93  theLambdaTable(0),
94  firstParticle(0),
95  stepLimit(fUseSafety),
96  skin(3.0),
97  facrange(0.04),
98  facgeom(2.5),
99  latDisplasment(true),
100  currentParticle(0),
101  currentCouple(0)
102{
103  SetVerboseLevel(1);
104  SetProcessSubType(fMultipleScattering);
105
106  // Size of tables assuming spline
107  minKinEnergy = 0.1*keV;
108  maxKinEnergy = 10.0*TeV;
109  nBins        = 77;
110
111  // default limit on polar angle
112  polarAngleLimit = 0.0;
113
114  pParticleChange = &fParticleChange;
115
116  modelManager = new G4EmModelManager();
117  (G4LossTableManager::Instance())->Register(this);
118
119}
120
121//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
122
123G4VMultipleScattering::~G4VMultipleScattering()
124{
125  if(1 < verboseLevel) {
126    G4cout << "G4VMultipleScattering destruct " << GetProcessName() 
127           << G4endl;
128  }
129  delete modelManager;
130  if (theLambdaTable) {
131    theLambdaTable->clearAndDestroy();
132    delete theLambdaTable;
133  }
134  (G4LossTableManager::Instance())->DeRegister(this);
135}
136
137//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
138
139void G4VMultipleScattering::AddEmModel(G4int order, G4VEmModel* p,
140                                       const G4Region* region)
141{
142  G4VEmFluctuationModel* fm = 0;
143  modelManager->AddEmModel(order, p, fm, region);
144  if(p) p->SetParticleChange(pParticleChange);
145}
146
147//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
148
149G4VEmModel* G4VMultipleScattering::GetModelByIndex(G4int idx, G4bool ver)
150{
151  return modelManager->GetModel(idx, ver);
152}
153
154//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
155
156void G4VMultipleScattering::BuildPhysicsTable(const G4ParticleDefinition& part)
157{
158  G4String num = part.GetParticleName();
159  if(1 < verboseLevel) {
160    G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
161           << GetProcessName()
162           << " and particle " << num
163           << G4endl;
164  }
165
166  if (buildLambdaTable && firstParticle == &part) {
167
168    const G4ProductionCutsTable* theCoupleTable=
169          G4ProductionCutsTable::GetProductionCutsTable();
170    size_t numOfCouples = theCoupleTable->GetTableSize();
171
172    for (size_t i=0; i<numOfCouples; i++) {
173
174      if (theLambdaTable->GetFlag(i)) {
175        // create physics vector and fill it
176        const G4MaterialCutsCouple* couple = 
177          theCoupleTable->GetMaterialCutsCouple(i);
178        G4PhysicsVector* aVector = PhysicsVector(couple);
179        modelManager->FillLambdaVector(aVector, couple, false);
180        G4PhysicsTableHelper::SetPhysicsVector(theLambdaTable, i, aVector);
181      }
182    }
183
184    if(1 < verboseLevel) {
185      G4cout << "Lambda table is built for "
186             << num
187             << G4endl;
188    }
189  }
190  if(verboseLevel>0 && ( num == "e-" || num == "mu+" || 
191                         num == "proton" || num == "pi-" || 
192                         num == "GenericIon")) {
193    PrintInfoDefinition();
194    if(2 < verboseLevel && theLambdaTable) G4cout << *theLambdaTable << G4endl;
195  }
196
197  if(1 < verboseLevel) {
198    G4cout << "### G4VMultipleScattering::BuildPhysicsTable() done for "
199           << GetProcessName()
200           << " and particle " << num
201           << G4endl;
202  }
203}
204
205//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
206
207void G4VMultipleScattering::PreparePhysicsTable(const G4ParticleDefinition& part)
208{
209  if (!firstParticle) {
210    currentCouple = 0;
211    if(part.GetParticleType() == "nucleus" && 
212       part.GetParticleSubType() == "generic") {
213      firstParticle = G4GenericIon::GenericIon();
214    } else {
215      firstParticle = &part;
216    } 
217
218    currentParticle = &part;
219  }
220
221  if(1 < verboseLevel) {
222    G4cout << "### G4VMultipleScattering::PrepearPhysicsTable() for "
223           << GetProcessName()
224           << " and particle " << part.GetParticleName()
225           << " local particle " << firstParticle->GetParticleName()
226           << G4endl;
227  }
228
229  (G4LossTableManager::Instance())->EmConfigurator()->AddModels();
230
231  if(firstParticle == &part) {
232
233    InitialiseProcess(firstParticle);
234    if(buildLambdaTable)
235      theLambdaTable = G4PhysicsTableHelper::PreparePhysicsTable(theLambdaTable);
236    const G4DataVector* theCuts = 
237      modelManager->Initialise(firstParticle, 
238                               G4Electron::Electron(), 
239                               10.0, verboseLevel);
240
241    if(2 < verboseLevel) G4cout << theCuts << G4endl;
242
243  }
244}
245
246//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
247
248void G4VMultipleScattering::PrintInfoDefinition()
249{
250  if (0 < verboseLevel) {
251    G4cout << G4endl << GetProcessName() 
252           << ":   for " << firstParticle->GetParticleName()
253           << "    SubType= " << GetProcessSubType() 
254           << G4endl;
255    if (theLambdaTable) {
256      G4cout << "      Lambda tables from "
257             << G4BestUnit(MinKinEnergy(),"Energy")
258             << " to "
259             << G4BestUnit(MaxKinEnergy(),"Energy")
260             << " in " << nBins << " bins, spline: " 
261             << (G4LossTableManager::Instance())->SplineFlag()
262             << G4endl;
263    }
264    PrintInfo();
265    modelManager->DumpModelList(verboseLevel);
266    if (2 < verboseLevel) {
267      G4cout << "LambdaTable address= " << theLambdaTable << G4endl;
268      if(theLambdaTable) G4cout << (*theLambdaTable) << G4endl;
269    }
270  }
271}
272
273//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
274
275G4double G4VMultipleScattering::AlongStepGetPhysicalInteractionLength(
276                             const G4Track& track,
277                             G4double,
278                             G4double currentMinimalStep,
279                             G4double& currentSafety,
280                             G4GPILSelection* selection)
281{
282  // get Step limit proposed by the process
283  valueGPILSelectionMSC = NotCandidateForSelection;
284  G4double steplength = GetMscContinuousStepLimit(track,
285                                                  track.GetKineticEnergy(),
286                                                  currentMinimalStep,
287                                                  currentSafety);
288  // G4cout << "StepLimit= " << steplength << G4endl;
289  // set return value for G4GPILSelection
290  *selection = valueGPILSelectionMSC;
291  return  steplength;
292}
293
294//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
295
296G4double G4VMultipleScattering::PostStepGetPhysicalInteractionLength(
297              const G4Track&, G4double, G4ForceCondition* condition)
298{
299  *condition = Forced;
300  return DBL_MAX;
301}
302
303//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
304
305G4double G4VMultipleScattering::GetContinuousStepLimit(
306                                       const G4Track& track,
307                                       G4double previousStepSize,
308                                       G4double currentMinimalStep,
309                                       G4double& currentSafety)
310{
311  return GetMscContinuousStepLimit(track,previousStepSize,currentMinimalStep,
312                                   currentSafety);
313}
314
315//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
316
317G4double G4VMultipleScattering::GetMeanFreePath(
318              const G4Track&, G4double, G4ForceCondition* condition)
319{
320  *condition = Forced;
321  return DBL_MAX;
322}
323
324//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
325
326G4VParticleChange* G4VMultipleScattering::AlongStepDoIt(const G4Track&,
327                                                        const G4Step& step)
328{
329  fParticleChange.ProposeTrueStepLength(
330    currentModel->ComputeTrueStepLength(step.GetStepLength()));
331  return &fParticleChange;
332}
333
334//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
335
336G4VParticleChange* G4VMultipleScattering::PostStepDoIt(const G4Track& track,
337                                                       const G4Step& step)
338{
339  fParticleChange.Initialize(track);
340  currentModel->SampleScattering(track.GetDynamicParticle(),
341                                 step.GetPostStepPoint()->GetSafety());
342  return &fParticleChange;
343}
344
345//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
346
347G4PhysicsVector* G4VMultipleScattering::PhysicsVector(const G4MaterialCutsCouple* couple)
348{
349  G4int nbins = 3;
350  if( couple->IsUsed() ) nbins = nBins;
351  G4PhysicsVector* v = new G4PhysicsLogVector(minKinEnergy, maxKinEnergy, nbins);
352  v->SetSpline((G4LossTableManager::Instance())->SplineFlag());
353  return v;
354}
355
356//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
357
358G4bool G4VMultipleScattering::StorePhysicsTable(const G4ParticleDefinition* part,
359                                                const G4String& directory,
360                                                      G4bool ascii)
361{
362  G4bool yes = true;
363  if ( theLambdaTable && part == firstParticle) {
364    const G4String name = GetPhysicsTableFileName(part,directory,"Lambda",ascii);
365    G4bool yes = theLambdaTable->StorePhysicsTable(name,ascii);
366
367    if ( yes ) {
368      if ( verboseLevel>0 ) {
369        G4cout << "Physics table are stored for " << part->GetParticleName()
370               << " and process " << GetProcessName()
371               << " in the directory <" << directory
372               << "> " << G4endl;
373      }
374    } else {
375      G4cout << "Fail to store Physics Table for " << part->GetParticleName()
376             << " and process " << GetProcessName()
377             << " in the directory <" << directory
378             << "> " << G4endl;
379    }
380  }
381  return yes;
382}
383
384//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
385
386G4bool G4VMultipleScattering::RetrievePhysicsTable(const G4ParticleDefinition* part,
387                                                   const G4String& directory,
388                                                         G4bool ascii)
389{
390  if(0 < verboseLevel) {
391//    G4cout << "========================================================" << G4endl;
392    G4cout << "G4VMultipleScattering::RetrievePhysicsTable() for "
393           << part->GetParticleName() << " and process "
394           << GetProcessName() << G4endl;
395  }
396  G4bool yes = true;
397
398  if(!buildLambdaTable || firstParticle != part) return yes;
399
400  const G4String particleName = part->GetParticleName();
401
402  G4String filename = GetPhysicsTableFileName(part,directory,"Lambda",ascii);
403  yes = G4PhysicsTableHelper::RetrievePhysicsTable(theLambdaTable,filename,ascii);
404  if ( yes ) {
405    if (0 < verboseLevel) {
406        G4cout << "Lambda table for " << part->GetParticleName() << " is retrieved from <"
407               << filename << ">"
408               << G4endl;
409    }
410    if((G4LossTableManager::Instance())->SplineFlag()) {
411      size_t n = theLambdaTable->length();
412      for(size_t i=0; i<n; i++) {(* theLambdaTable)[i]->SetSpline(true);}
413    }
414  } else {
415    if (1 < verboseLevel) {
416        G4cout << "Lambda table for " << part->GetParticleName() << " in file <"
417               << filename << "> is not exist"
418               << G4endl;
419    }
420  }
421  return yes;
422}
423
424//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
425
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