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25 // 25 //
>> 26 // $Id: G4VMultipleScattering.cc 97742 2016-06-08 09:24:54Z gcosmo $
26 // 27 //
27 // ------------------------------------------- 28 // -------------------------------------------------------------------
28 // 29 //
29 // GEANT4 Class file 30 // GEANT4 Class file
30 // 31 //
31 // 32 //
32 // File name: G4VMultipleScattering 33 // File name: G4VMultipleScattering
33 // 34 //
34 // Author: Vladimir Ivanchenko on base 35 // Author: Vladimir Ivanchenko on base of Laszlo Urban code
35 // 36 //
36 // Creation date: 25.03.2003 37 // Creation date: 25.03.2003
37 // 38 //
38 // Modifications: 39 // Modifications:
39 // 40 //
>> 41 // 13.04.03 Change printout (V.Ivanchenko)
>> 42 // 04-06-03 Fix compilation warnings (V.Ivanchenko)
40 // 16-07-03 Use G4VMscModel interface (V.Ivanc 43 // 16-07-03 Use G4VMscModel interface (V.Ivanchenko)
41 // 03-11-03 Fix initialisation problem in Retr 44 // 03-11-03 Fix initialisation problem in RetrievePhysicsTable (V.Ivanchenko)
42 // 04-11-03 Update PrintInfoDefinition (V.Ivan 45 // 04-11-03 Update PrintInfoDefinition (V.Ivanchenko)
43 // 01-03-04 SampleCosineTheta signature change 46 // 01-03-04 SampleCosineTheta signature changed
44 // 22-04-04 SampleCosineTheta signature change 47 // 22-04-04 SampleCosineTheta signature changed back to original
45 // 27-08-04 Add InitialiseForRun method (V.Iva 48 // 27-08-04 Add InitialiseForRun method (V.Ivanchneko)
46 // 08-11-04 Migration to new interface of Stor 49 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
47 // 11-03-05 Shift verbose level by 1 (V.Ivantc 50 // 11-03-05 Shift verbose level by 1 (V.Ivantchenko)
48 // 15-04-05 optimize internal interface (V.Iva 51 // 15-04-05 optimize internal interface (V.Ivanchenko)
49 // 15-04-05 remove boundary flag (V.Ivanchenko 52 // 15-04-05 remove boundary flag (V.Ivanchenko)
50 // 27-10-05 introduce virtual function MscStep 53 // 27-10-05 introduce virtual function MscStepLimitation() (V.Ivanchenko)
51 // 12-04-07 Add verbosity at destruction (V.Iv 54 // 12-04-07 Add verbosity at destruction (V.Ivanchenko)
52 // 27-10-07 Virtual functions moved to source 55 // 27-10-07 Virtual functions moved to source (V.Ivanchenko)
53 // 11-03-08 Set skin value does not effect ste 56 // 11-03-08 Set skin value does not effect step limit type (V.Ivanchenko)
54 // 24-06-09 Removed hidden bin in G4PhysicsVec 57 // 24-06-09 Removed hidden bin in G4PhysicsVector (V.Ivanchenko)
55 // 04-06-13 Adoptation to MT mode (V.Ivanchenk 58 // 04-06-13 Adoptation to MT mode (V.Ivanchenko)
56 // 59 //
>> 60 // Class Description:
>> 61 //
>> 62 // It is the generic process of multiple scattering it includes common
>> 63 // part of calculations for all charged particles
57 64
58 // ------------------------------------------- 65 // -------------------------------------------------------------------
59 // 66 //
60 //....oooOO0OOooo........oooOO0OOooo........oo 67 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
61 //....oooOO0OOooo........oooOO0OOooo........oo 68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
62 69
63 #include "G4VMultipleScattering.hh" 70 #include "G4VMultipleScattering.hh"
64 #include "G4PhysicalConstants.hh" 71 #include "G4PhysicalConstants.hh"
65 #include "G4SystemOfUnits.hh" 72 #include "G4SystemOfUnits.hh"
66 #include "G4LossTableManager.hh" 73 #include "G4LossTableManager.hh"
67 #include "G4MaterialCutsCouple.hh" 74 #include "G4MaterialCutsCouple.hh"
68 #include "G4Step.hh" 75 #include "G4Step.hh"
69 #include "G4ParticleDefinition.hh" 76 #include "G4ParticleDefinition.hh"
70 #include "G4VEmFluctuationModel.hh" 77 #include "G4VEmFluctuationModel.hh"
71 #include "G4UnitsTable.hh" 78 #include "G4UnitsTable.hh"
72 #include "G4ProductionCutsTable.hh" 79 #include "G4ProductionCutsTable.hh"
73 #include "G4Electron.hh" 80 #include "G4Electron.hh"
74 #include "G4GenericIon.hh" 81 #include "G4GenericIon.hh"
75 #include "G4TransportationManager.hh" 82 #include "G4TransportationManager.hh"
76 #include "G4SafetyHelper.hh" 83 #include "G4SafetyHelper.hh"
77 #include "G4ParticleTable.hh" 84 #include "G4ParticleTable.hh"
78 #include "G4ProcessVector.hh" 85 #include "G4ProcessVector.hh"
79 #include "G4ProcessManager.hh" 86 #include "G4ProcessManager.hh"
80 #include "G4LossTableBuilder.hh" <<
81 #include "G4EmTableUtil.hh" <<
82 #include <iostream> 87 #include <iostream>
83 88
84 //....oooOO0OOooo........oooOO0OOooo........oo 89 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
85 90
86 G4VMultipleScattering::G4VMultipleScattering(c << 91 G4VMultipleScattering::G4VMultipleScattering(const G4String& name, G4ProcessType)
87 : G4VContinuousDiscreteProcess("msc", fElect 92 : G4VContinuousDiscreteProcess("msc", fElectromagnetic),
>> 93 numberOfModels(0),
>> 94 firstParticle(nullptr),
>> 95 currParticle(nullptr),
>> 96 stepLimit(fUseSafety),
>> 97 facrange(0.04),
>> 98 latDisplacement(true),
>> 99 isIon(false),
>> 100 fDispBeyondSafety(false),
88 fNewPosition(0.,0.,0.), 101 fNewPosition(0.,0.,0.),
89 fNewDirection(0.,0.,1.) 102 fNewDirection(0.,0.,1.)
90 { 103 {
91 theParameters = G4EmParameters::Instance(); 104 theParameters = G4EmParameters::Instance();
92 SetVerboseLevel(1); 105 SetVerboseLevel(1);
93 SetProcessSubType(fMultipleScattering); 106 SetProcessSubType(fMultipleScattering);
>> 107 if("ionmsc" == name) { firstParticle = G4GenericIon::GenericIon(); }
94 108
95 lowestKinEnergy = 10*CLHEP::eV; 109 lowestKinEnergy = 10*CLHEP::eV;
96 110
97 geomMin = 0.05*CLHEP::nm; << 111 physStepLimit = gPathLength = tPathLength = 0.0;
>> 112 fIonisation = nullptr;
>> 113
>> 114 geomMin = 0.05*CLHEP::nm;
98 minDisplacement2 = geomMin*geomMin; 115 minDisplacement2 = geomMin*geomMin;
99 116
100 pParticleChange = &fParticleChange; 117 pParticleChange = &fParticleChange;
>> 118 safetyHelper = nullptr;
>> 119 fPositionChanged = false;
>> 120 isActive = false;
101 121
>> 122 currentModel = nullptr;
102 modelManager = new G4EmModelManager(); 123 modelManager = new G4EmModelManager();
103 emManager = G4LossTableManager::Instance(); 124 emManager = G4LossTableManager::Instance();
104 mscModels.reserve(2); <<
105 emManager->Register(this); 125 emManager->Register(this);
106 } 126 }
107 127
108 //....oooOO0OOooo........oooOO0OOooo........oo 128 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
109 129
110 G4VMultipleScattering::~G4VMultipleScattering( 130 G4VMultipleScattering::~G4VMultipleScattering()
111 { 131 {
>> 132 /*
>> 133 if(1 < verboseLevel) {
>> 134 G4cout << "G4VMultipleScattering destruct " << GetProcessName()
>> 135 << G4endl;
>> 136 }
>> 137 */
112 delete modelManager; 138 delete modelManager;
113 emManager->DeRegister(this); 139 emManager->DeRegister(this);
114 } 140 }
115 141
116 //....oooOO0OOooo........oooOO0OOooo........oo 142 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
117 143
118 void G4VMultipleScattering::AddEmModel(G4int o << 144 void G4VMultipleScattering::AddEmModel(G4int order, G4VEmModel* p,
119 const G 145 const G4Region* region)
120 { 146 {
121 if(nullptr == ptr) { return; } <<
122 G4VEmFluctuationModel* fm = nullptr; 147 G4VEmFluctuationModel* fm = nullptr;
123 modelManager->AddEmModel(order, ptr, fm, reg << 148 modelManager->AddEmModel(order, p, fm, region);
124 ptr->SetParticleChange(pParticleChange); << 149 if(p) { p->SetParticleChange(pParticleChange); }
125 } 150 }
126 151
127 //....oooOO0OOooo........oooOO0OOooo........oo 152 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
128 153
129 void G4VMultipleScattering::SetEmModel(G4VMscM << 154 void G4VMultipleScattering::SetEmModel(G4VMscModel* p, G4int index)
130 { 155 {
131 if(nullptr == ptr) { return; } << 156 G4int n = mscModels.size();
132 if(!mscModels.empty()) { << 157 if(index >= n) { for(G4int i=n; i<=index; ++i) { mscModels.push_back(0); } }
133 for(auto & msc : mscModels) { if(msc == pt << 158 mscModels[index] = p;
134 } << 159 }
135 mscModels.push_back(ptr); << 160
>> 161 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 162
>> 163 G4VMscModel* G4VMultipleScattering::EmModel(G4int index) const
>> 164 {
>> 165 G4VMscModel* p = nullptr;
>> 166 if(index >= 0 && index < G4int(mscModels.size())) { p = mscModels[index]; }
>> 167 return p;
>> 168 }
>> 169
>> 170 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 171
>> 172 G4VEmModel*
>> 173 G4VMultipleScattering::GetModelByIndex(G4int idx, G4bool ver) const
>> 174 {
>> 175 return modelManager->GetModel(idx, ver);
136 } 176 }
137 177
138 //....oooOO0OOooo........oooOO0OOooo........oo 178 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
139 179
140 void 180 void
141 G4VMultipleScattering::PreparePhysicsTable(con 181 G4VMultipleScattering::PreparePhysicsTable(const G4ParticleDefinition& part)
142 { 182 {
143 G4bool master = emManager->IsMaster(); << 183 G4bool master = true;
144 if (nullptr == firstParticle) { firstParticl << 184 const G4VMultipleScattering* masterProc =
>> 185 static_cast<const G4VMultipleScattering*>(GetMasterProcess());
>> 186 if(masterProc && masterProc != this) { master = false; }
>> 187
>> 188 if(!firstParticle) { firstParticle = ∂ }
>> 189 if(part.GetParticleType() == "nucleus") {
>> 190 stepLimit = fMinimal;
>> 191 latDisplacement = false;
>> 192 facrange = 0.2;
>> 193 G4String pname = part.GetParticleName();
>> 194 if(pname != "deuteron" && pname != "triton" &&
>> 195 pname != "alpha+" && pname != "helium" &&
>> 196 pname != "alpha" && pname != "He3" &&
>> 197 pname != "hydrogen") {
>> 198
>> 199 const G4ParticleDefinition* theGenericIon =
>> 200 G4ParticleTable::GetParticleTable()->FindParticle("GenericIon");
>> 201 if(&part == theGenericIon) { isIon = true; }
>> 202
>> 203 if(theGenericIon && firstParticle != theGenericIon) {
>> 204 G4ProcessManager* pm = theGenericIon->GetProcessManager();
>> 205 G4ProcessVector* v = pm->GetAlongStepProcessVector();
>> 206 size_t n = v->size();
>> 207 for(size_t j=0; j<n; ++j) {
>> 208 if((*v)[j] == this) {
>> 209 firstParticle = theGenericIon;
>> 210 isIon = true;
>> 211 break;
>> 212 }
>> 213 }
>> 214 }
>> 215 }
>> 216 }
145 217
146 emManager->PreparePhysicsTable(&part, this); << 218 emManager->PreparePhysicsTable(&part, this, master);
147 currParticle = nullptr; << 219 currParticle = 0;
>> 220
>> 221 if(1 < verboseLevel) {
>> 222 G4cout << "### G4VMultipleScattering::PrepearPhysicsTable() for "
>> 223 << GetProcessName()
>> 224 << " and particle " << part.GetParticleName()
>> 225 << " local particle " << firstParticle->GetParticleName()
>> 226 << " isIon= " << isIon
>> 227 << G4endl;
>> 228 }
148 229
149 if(firstParticle == &part) { 230 if(firstParticle == &part) {
150 baseMat = emManager->GetTableBuilder()->Ge <<
151 G4EmTableUtil::PrepareMscProcess(this, par <<
152 stepLimit, facrange, <<
153 latDisplacement, master, <<
154 isIon, baseMat); <<
155 231
>> 232 // initialise process
>> 233 InitialiseProcess(firstParticle);
>> 234
>> 235 // heavy particles and not ions
>> 236 if(!isIon) {
>> 237 if(part.GetPDGMass() > MeV) {
>> 238 stepLimit = theParameters->MscMuHadStepLimitType();
>> 239 facrange = theParameters->MscMuHadRangeFactor();
>> 240 latDisplacement = theParameters->MuHadLateralDisplacement();
>> 241 } else {
>> 242 stepLimit = theParameters->MscStepLimitType();
>> 243 facrange = theParameters->MscRangeFactor();
>> 244 latDisplacement = theParameters->LateralDisplacement();
>> 245 }
>> 246 if(latDisplacement) {
>> 247 fDispBeyondSafety = theParameters->LatDisplacementBeyondSafety();
>> 248 }
>> 249 }
>> 250 if(master) { SetVerboseLevel(theParameters->Verbose()); }
>> 251 else { SetVerboseLevel(theParameters->WorkerVerbose()); }
>> 252
>> 253 // initialisation of models
156 numberOfModels = modelManager->NumberOfMod 254 numberOfModels = modelManager->NumberOfModels();
157 currentModel = GetModelByIndex(0); << 255 /*
>> 256 G4cout << "### G4VMultipleScattering::PreparePhysicsTable() for "
>> 257 << GetProcessName()
>> 258 << " and particle " << part.GetParticleName()
>> 259 << " Nmod= " << numberOfModels << " " << this
>> 260 << G4endl;
>> 261 */
>> 262 for(G4int i=0; i<numberOfModels; ++i) {
>> 263 G4VMscModel* msc = static_cast<G4VMscModel*>(modelManager->GetModel(i));
>> 264 msc->SetIonisation(0, firstParticle);
>> 265 msc->SetMasterThread(master);
>> 266 if(0 == i) { currentModel = msc; }
>> 267 msc->SetStepLimitType(stepLimit);
>> 268 msc->SetLateralDisplasmentFlag(latDisplacement);
>> 269 msc->SetSkin(theParameters->MscSkin());
>> 270 msc->SetRangeFactor(facrange);
>> 271 msc->SetGeomFactor(theParameters->MscGeomFactor());
>> 272 msc->SetPolarAngleLimit(theParameters->MscThetaLimit());
>> 273 G4double emax =
>> 274 std::min(msc->HighEnergyLimit(),theParameters->MaxKinEnergy());
>> 275 msc->SetHighEnergyLimit(emax);
>> 276 }
158 277
159 if (nullptr == safetyHelper) { << 278 modelManager->Initialise(firstParticle, G4Electron::Electron(),
>> 279 10.0, verboseLevel);
>> 280
>> 281 if(!safetyHelper) {
160 safetyHelper = G4TransportationManager:: 282 safetyHelper = G4TransportationManager::GetTransportationManager()
161 ->GetSafetyHelper(); << 283 ->GetSafetyHelper();
162 safetyHelper->InitialiseHelper(); 284 safetyHelper->InitialiseHelper();
163 } 285 }
164 } 286 }
165 } 287 }
166 288
167 //....oooOO0OOooo........oooOO0OOooo........oo 289 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
168 290
169 void G4VMultipleScattering::BuildPhysicsTable( 291 void G4VMultipleScattering::BuildPhysicsTable(const G4ParticleDefinition& part)
170 { 292 {
171 G4bool master = emManager->IsMaster(); << 293 G4String num = part.GetParticleName();
>> 294 if(1 < verboseLevel) {
>> 295 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
>> 296 << GetProcessName()
>> 297 << " and particle " << num
>> 298 << " IsMaster= " << G4LossTableManager::Instance()->IsMaster()
>> 299 << G4endl;
>> 300 }
>> 301 G4bool master = true;
>> 302 const G4VMultipleScattering* masterProcess =
>> 303 static_cast<const G4VMultipleScattering*>(GetMasterProcess());
>> 304 if(masterProcess && masterProcess != this) { master = false; }
172 305
173 if(firstParticle == &part) { << 306 if(firstParticle == &part) {
174 emManager->BuildPhysicsTable(&part); << 307 /*
175 } << 308 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
176 const G4VMultipleScattering* ptr = this; << 309 << GetProcessName()
177 if(!master) { << 310 << " and particle " << num
178 ptr = static_cast<const G4VMultipleScatter << 311 << " IsMaster= " << G4LossTableManager::Instance()->IsMaster()
>> 312 << " " << this
>> 313 << G4endl;
>> 314 */
>> 315 emManager->BuildPhysicsTable(firstParticle);
>> 316
>> 317 if(!master) {
>> 318 // initialisation of models
>> 319 G4bool printing = true;
>> 320 numberOfModels = modelManager->NumberOfModels();
>> 321 /*
>> 322 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
>> 323 << GetProcessName()
>> 324 << " and particle " << num
>> 325 << " Nmod= " << numberOfModels << " " << this
>> 326 << G4endl;
>> 327 */
>> 328 for(G4int i=0; i<numberOfModels; ++i) {
>> 329 G4VMscModel* msc =
>> 330 static_cast<G4VMscModel*>(GetModelByIndex(i, printing));
>> 331 G4VMscModel* msc0=
>> 332 static_cast<G4VMscModel*>(masterProcess->GetModelByIndex(i,printing));
>> 333 msc->SetCrossSectionTable(msc0->GetCrossSectionTable(), false);
>> 334 msc->InitialiseLocal(firstParticle, msc0);
>> 335 }
>> 336 }
179 } 337 }
180 338
181 G4EmTableUtil::BuildMscProcess(this, ptr, pa << 339 // explicitly defined printout by particle name
182 numberOfModels, master); << 340 if(1 < verboseLevel ||
>> 341 (0 < verboseLevel && (num == "e-" ||
>> 342 num == "e+" || num == "mu+" ||
>> 343 num == "mu-" || num == "proton"||
>> 344 num == "pi+" || num == "pi-" ||
>> 345 num == "kaon+" || num == "kaon-" ||
>> 346 num == "alpha" || num == "anti_proton" ||
>> 347 num == "GenericIon")))
>> 348 {
>> 349 G4cout << G4endl << GetProcessName()
>> 350 << ": for " << num
>> 351 << " SubType= " << GetProcessSubType()
>> 352 << G4endl;
>> 353 PrintInfo();
>> 354 modelManager->DumpModelList(verboseLevel);
>> 355 }
>> 356
>> 357 if(1 < verboseLevel) {
>> 358 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() done for "
>> 359 << GetProcessName()
>> 360 << " and particle " << num
>> 361 << G4endl;
>> 362 }
183 } 363 }
184 364
185 //....oooOO0OOooo........oooOO0OOooo........oo 365 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
186 366
187 void G4VMultipleScattering::StreamInfo(std::os << 367 void G4VMultipleScattering::PrintInfoDefinition()
188 const G4ParticleDefinition& <<
189 { 368 {
190 G4String indent = (rst ? " " : ""); << 369 if (0 < verboseLevel) {
191 outFile << G4endl << indent << GetProcessNam << 370 G4cout << G4endl << GetProcessName()
192 if (!rst) outFile << " for " << part.GetPart << 371 << ": for " << firstParticle->GetParticleName()
193 outFile << " SubType= " << GetProcessSubTy << 372 << " SubType= " << GetProcessSubType()
194 modelManager->DumpModelList(outFile, verbose << 373 << G4endl;
>> 374 PrintInfo();
>> 375 modelManager->DumpModelList(verboseLevel);
>> 376 }
195 } 377 }
196 378
197 //....oooOO0OOooo........oooOO0OOooo........oo 379 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
198 380
199 void G4VMultipleScattering::StartTracking(G4Tr 381 void G4VMultipleScattering::StartTracking(G4Track* track)
200 { 382 {
201 G4VEnergyLossProcess* eloss = nullptr; 383 G4VEnergyLossProcess* eloss = nullptr;
202 if(track->GetParticleDefinition() != currPar 384 if(track->GetParticleDefinition() != currParticle) {
203 currParticle = track->GetParticleDefinitio 385 currParticle = track->GetParticleDefinition();
204 fIonisation = emManager->GetEnergyLossProc 386 fIonisation = emManager->GetEnergyLossProcess(currParticle);
205 eloss = fIonisation; 387 eloss = fIonisation;
206 } 388 }
207 for(G4int i=0; i<numberOfModels; ++i) { << 389 /*
208 G4VMscModel* msc = GetModelByIndex(i); << 390 G4cout << "G4VMultipleScattering::StartTracking Nmod= " << numberOfModels
209 msc->StartTracking(track); << 391 << " " << currParticle->GetParticleName()
210 if(nullptr != eloss) { << 392 << " E(MeV)= " << track->GetKineticEnergy()
211 msc->SetIonisation(eloss, currParticle); << 393 << " Ion= " << eloss << " " << fIonisation << " IsMaster= "
>> 394 << G4LossTableManager::Instance()->IsMaster()
>> 395 << G4endl;
>> 396 */
>> 397 // one model
>> 398 if(1 == numberOfModels) {
>> 399 currentModel->StartTracking(track);
>> 400 if(eloss) { currentModel->SetIonisation(fIonisation, currParticle); }
>> 401
>> 402 // many models
>> 403 } else {
>> 404 for(G4int i=0; i<numberOfModels; ++i) {
>> 405 G4VMscModel* msc = static_cast<G4VMscModel*>(GetModelByIndex(i,true));
>> 406 msc->StartTracking(track);
>> 407 if(eloss) { msc->SetIonisation(fIonisation, currParticle); }
212 } 408 }
213 } 409 }
214 } << 410 }
215 411
216 //....oooOO0OOooo........oooOO0OOooo........oo 412 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
217 413
218 G4double G4VMultipleScattering::AlongStepGetPh 414 G4double G4VMultipleScattering::AlongStepGetPhysicalInteractionLength(
219 const G4Track& tr 415 const G4Track& track,
220 G4double, 416 G4double,
221 G4double currentM 417 G4double currentMinimalStep,
222 G4double&, 418 G4double&,
223 G4GPILSelection* 419 G4GPILSelection* selection)
224 { 420 {
225 // get Step limit proposed by the process 421 // get Step limit proposed by the process
226 *selection = NotCandidateForSelection; 422 *selection = NotCandidateForSelection;
227 physStepLimit = gPathLength = tPathLength = 423 physStepLimit = gPathLength = tPathLength = currentMinimalStep;
228 424
229 G4double ekin = track.GetKineticEnergy(); 425 G4double ekin = track.GetKineticEnergy();
230 /* 426 /*
231 G4cout << "MSC::AlongStepGPIL: Ekin= " << ek 427 G4cout << "MSC::AlongStepGPIL: Ekin= " << ekin
232 << " " << currParticle->GetParticleN 428 << " " << currParticle->GetParticleName()
233 << " currMod " << currentModel 429 << " currMod " << currentModel
234 << G4endl; 430 << G4endl;
235 */ 431 */
236 // isIon flag is used only to select a model 432 // isIon flag is used only to select a model
237 if(isIon) { 433 if(isIon) {
238 ekin *= proton_mass_c2/track.GetParticleDe 434 ekin *= proton_mass_c2/track.GetParticleDefinition()->GetPDGMass();
239 } 435 }
240 const G4MaterialCutsCouple* couple = track.G <<
241 436
242 // select new model, static cast is possible << 437 // select new model
243 if(1 < numberOfModels) { 438 if(1 < numberOfModels) {
244 currentModel = << 439 currentModel = static_cast<G4VMscModel*>(
245 static_cast<G4VMscModel*>(SelectModel(ek << 440 SelectModel(ekin,track.GetMaterialCutsCouple()->GetIndex()));
246 } 441 }
247 currentModel->SetCurrentCouple(couple); <<
248 // msc is active is model is active, energy 442 // msc is active is model is active, energy above the limit,
249 // and step size is above the limit; 443 // and step size is above the limit;
250 // if it is active msc may limit the step 444 // if it is active msc may limit the step
251 if(currentModel->IsActive(ekin) && tPathLeng 445 if(currentModel->IsActive(ekin) && tPathLength > geomMin
252 && ekin >= lowestKinEnergy) { 446 && ekin >= lowestKinEnergy) {
253 isActive = true; 447 isActive = true;
254 tPathLength = 448 tPathLength =
255 currentModel->ComputeTruePathLengthLimit 449 currentModel->ComputeTruePathLengthLimit(track, gPathLength);
256 if (tPathLength < physStepLimit) { 450 if (tPathLength < physStepLimit) {
257 *selection = CandidateForSelection; 451 *selection = CandidateForSelection;
258 } 452 }
259 } else { << 453 } else { isActive = false; }
260 isActive = false; <<
261 gPathLength = DBL_MAX; <<
262 } <<
263 454
264 //if(currParticle->GetPDGMass() > GeV) 455 //if(currParticle->GetPDGMass() > GeV)
265 /* 456 /*
266 G4cout << "MSC::AlongStepGPIL: Ekin= " << ek 457 G4cout << "MSC::AlongStepGPIL: Ekin= " << ekin
267 << " " << currParticle->GetParticleN 458 << " " << currParticle->GetParticleName()
268 << " gPathLength= " << gPathLength 459 << " gPathLength= " << gPathLength
269 << " tPathLength= " << tPathLength 460 << " tPathLength= " << tPathLength
270 << " currentMinimalStep= " << current 461 << " currentMinimalStep= " << currentMinimalStep
271 << " isActive " << isActive << G4endl 462 << " isActive " << isActive << G4endl;
272 */ 463 */
273 return gPathLength; 464 return gPathLength;
274 } 465 }
275 466
276 //....oooOO0OOooo........oooOO0OOooo........oo 467 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
277 468
278 G4double 469 G4double
279 G4VMultipleScattering::PostStepGetPhysicalInte 470 G4VMultipleScattering::PostStepGetPhysicalInteractionLength(
280 const G4Track&, G4double, G4Forc 471 const G4Track&, G4double, G4ForceCondition* condition)
281 { 472 {
>> 473 //*condition = Forced;
282 *condition = NotForced; 474 *condition = NotForced;
283 return DBL_MAX; 475 return DBL_MAX;
284 } 476 }
285 477
286 //....oooOO0OOooo........oooOO0OOooo........oo 478 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
287 479
288 G4VParticleChange* 480 G4VParticleChange*
289 G4VMultipleScattering::AlongStepDoIt(const G4T 481 G4VMultipleScattering::AlongStepDoIt(const G4Track& track, const G4Step& step)
290 { 482 {
291 fParticleChange.InitialiseMSC(track, step); << 483 fParticleChange.ProposeMomentumDirection(
292 fNewPosition = fParticleChange.GetProposedPo << 484 step.GetPostStepPoint()->GetMomentumDirection());
>> 485 fNewPosition = step.GetPostStepPoint()->GetPosition();
>> 486 fParticleChange.ProposePosition(fNewPosition);
293 fPositionChanged = false; 487 fPositionChanged = false;
294 488
295 G4double geomLength = step.GetStepLength(); 489 G4double geomLength = step.GetStepLength();
296 490
297 // very small step - no msc 491 // very small step - no msc
298 if(!isActive) { 492 if(!isActive) {
299 tPathLength = geomLength; 493 tPathLength = geomLength;
300 494
301 // sample msc 495 // sample msc
302 } else { 496 } else {
303 G4double range = 497 G4double range =
304 currentModel->GetRange(currParticle,trac 498 currentModel->GetRange(currParticle,track.GetKineticEnergy(),
305 track.GetMaterial 499 track.GetMaterialCutsCouple());
306 500
307 tPathLength = currentModel->ComputeTrueSte 501 tPathLength = currentModel->ComputeTrueStepLength(geomLength);
308 502
309 /* 503 /*
310 if(currParticle->GetPDGMass() > 0.9*GeV) 504 if(currParticle->GetPDGMass() > 0.9*GeV)
311 G4cout << "G4VMsc::AlongStepDoIt: GeomLeng 505 G4cout << "G4VMsc::AlongStepDoIt: GeomLength= "
312 << geomLength 506 << geomLength
313 << " tPathLength= " << tPathLength 507 << " tPathLength= " << tPathLength
314 << " physStepLimit= " << physStepLi 508 << " physStepLimit= " << physStepLimit
315 << " dr= " << range - tPathLength 509 << " dr= " << range - tPathLength
316 << " ekin= " << track.GetKineticEne 510 << " ekin= " << track.GetKineticEnergy() << G4endl;
317 */ 511 */
318 // protection against wrong t->g->t conver 512 // protection against wrong t->g->t conversion
319 tPathLength = std::min(tPathLength, physSt 513 tPathLength = std::min(tPathLength, physStepLimit);
320 514
321 // do not sample scattering at the last or 515 // do not sample scattering at the last or at a small step
322 if(tPathLength < range && tPathLength > ge 516 if(tPathLength < range && tPathLength > geomMin) {
323 517
324 static const G4double minSafety = 1.20*C 518 static const G4double minSafety = 1.20*CLHEP::nm;
325 static const G4double sFact = 0.99; 519 static const G4double sFact = 0.99;
326 520
327 G4ThreeVector displacement = currentMode 521 G4ThreeVector displacement = currentModel->SampleScattering(
328 step.GetPostStepPoint()->GetMomentumDi 522 step.GetPostStepPoint()->GetMomentumDirection(),minSafety);
329 523
330 G4double r2 = displacement.mag2(); 524 G4double r2 = displacement.mag2();
331 //G4cout << " R= " << sqrt(r2) << " R 525 //G4cout << " R= " << sqrt(r2) << " Rmin= " << sqrt(minDisplacement2)
332 // << " flag= " << fDispBeyondSafety 526 // << " flag= " << fDispBeyondSafety << G4endl;
333 if(r2 > minDisplacement2) { 527 if(r2 > minDisplacement2) {
334 528
335 fPositionChanged = true; 529 fPositionChanged = true;
336 G4double dispR = std::sqrt(r2); << 530 G4double dispR = std::sqrt(r2);
337 G4double postSafety = 531 G4double postSafety =
338 sFact*safetyHelper->ComputeSafety(fN << 532 sFact*safetyHelper->ComputeSafety(fNewPosition, dispR);
339 //G4cout<<" R= "<< dispR<<" postSaf 533 //G4cout<<" R= "<< dispR<<" postSafety= "<<postSafety<<G4endl;
340 534
341 // far away from geometry boundary 535 // far away from geometry boundary
342 if(postSafety > 0.0 && dispR <= postSa 536 if(postSafety > 0.0 && dispR <= postSafety) {
343 fNewPosition += displacement; 537 fNewPosition += displacement;
344 538
345 //near the boundary << 539 //near the boundary
346 } else { 540 } else {
347 // displaced point is definitely wit 541 // displaced point is definitely within the volume
348 //G4cout<<" R= "<<dispR<<" postSa 542 //G4cout<<" R= "<<dispR<<" postSafety= "<<postSafety<<G4endl;
349 if(dispR < postSafety) { 543 if(dispR < postSafety) {
350 fNewPosition += displacement; 544 fNewPosition += displacement;
351 545
352 // reduced displacement << 546 // optional extra mechanism is applied only if a particle
353 } else if(postSafety > geomMin) { << 547 // is stopped by the boundary
354 fNewPosition += displacement*(post << 548 } else if(fDispBeyondSafety && 0.0 == postSafety) {
>> 549 fNewPosition += displacement;
>> 550 G4double maxshift =
>> 551 std::min(2.0*dispR, geomLength*(physStepLimit/tPathLength - 1.0));
>> 552 G4double dist = 0.0;
>> 553 G4double safety = postSafety + dispR;
>> 554 fNewDirection = *(fParticleChange.GetMomentumDirection());
>> 555 /*
>> 556 G4cout << "##MSC before Recheck maxshift= " << maxshift
>> 557 << " postsafety= " << postSafety
>> 558 << " Ekin= " << track.GetKineticEnergy()
>> 559 << " " << track.GetDefinition()->GetParticleName()
>> 560 << G4endl;
>> 561 */
>> 562 // check if it is possible to shift to the boundary
>> 563 // and the shift is not large
>> 564 if(safetyHelper->RecheckDistanceToCurrentBoundary(fNewPosition,
>> 565 fNewDirection, maxshift, &dist, &safety)
>> 566 && std::abs(dist) < maxshift) {
>> 567 /*
>> 568 G4cout << "##MSC after Recheck dist= " << dist
>> 569 << " postsafety= " << postSafety
>> 570 << " t= " << tPathLength
>> 571 << " g= " << geomLength
>> 572 << " p= " << physStepLimit
>> 573 << G4endl;
>> 574 */
>> 575 // shift is positive
>> 576 if(dist >= 0.0) {
>> 577 tPathLength *= (1.0 + dist/geomLength);
>> 578 fNewPosition += dist*fNewDirection;
>> 579
>> 580 // shift is negative cannot be larger than geomLength
>> 581 } else {
>> 582 maxshift = std::min(maxshift, geomLength);
>> 583 if(0.0 < maxshift + dist) {
>> 584 G4ThreeVector postpoint = step.GetPostStepPoint()->GetPosition();
>> 585 G4ThreeVector point = fNewPosition + dist*fNewDirection;
>> 586 G4double R2 = (postpoint - point).mag2();
>> 587 G4double newdist = dist;
>> 588 // check not more than 10 extra boundaries
>> 589 for(G4int i=0; i<10; ++i) {
>> 590 dist = 0.0;
>> 591 if(safetyHelper->RecheckDistanceToCurrentBoundary(
>> 592 point, fNewDirection, maxshift, &dist, &safety)
>> 593 && std::abs(newdist + dist) < maxshift) {
>> 594 point += dist*fNewDirection;
>> 595 G4double R2new = (postpoint - point).mag2();
>> 596 //G4cout << "Backward i= " << i << " dist= " << dist
>> 597 // << " R2= " << R2new << G4endl;
>> 598 if(dist >= 0.0 || R2new > R2) { break; }
>> 599 R2 = R2new;
>> 600 fNewPosition = point;
>> 601 newdist += dist;
>> 602 } else {
>> 603 break;
>> 604 }
>> 605 }
>> 606 tPathLength *= (1.0 + newdist/geomLength);
>> 607 // shift on boundary is not possible for negative disp
>> 608 } else {
>> 609 fNewPosition += displacement*(postSafety/dispR - 1.0);
>> 610 }
>> 611 }
>> 612 // shift on boundary is not possible for any disp
>> 613 } else {
>> 614 fNewPosition += displacement*(postSafety/dispR - 1.0);
>> 615 }
>> 616 // reduced displacement
>> 617 } else if(postSafety > geomMin) {
>> 618 fNewPosition += displacement*(postSafety/dispR);
355 619
356 // very small postSafety 620 // very small postSafety
357 } else { 621 } else {
358 fPositionChanged = false; 622 fPositionChanged = false;
359 } 623 }
360 } 624 }
361 if(fPositionChanged) { << 625 if(fPositionChanged) {
362 safetyHelper->ReLocateWithinVolume(f << 626 safetyHelper->ReLocateWithinVolume(fNewPosition);
363 fParticleChange.ProposePosition(fNew << 627 fParticleChange.ProposePosition(fNewPosition);
364 } << 628 }
365 } 629 }
366 } 630 }
367 } 631 }
368 fParticleChange.ProposeTrueStepLength(tPathL 632 fParticleChange.ProposeTrueStepLength(tPathLength);
369 return &fParticleChange; 633 return &fParticleChange;
370 } 634 }
371 635
372 //....oooOO0OOooo........oooOO0OOooo........oo 636 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
373 637
>> 638 G4VParticleChange*
>> 639 G4VMultipleScattering::PostStepDoIt(const G4Track& track, const G4Step&)
>> 640 {
>> 641 fParticleChange.Initialize(track);
>> 642 return &fParticleChange;
>> 643 }
>> 644
>> 645 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 646
374 G4double G4VMultipleScattering::GetContinuousS 647 G4double G4VMultipleScattering::GetContinuousStepLimit(
375 const G 648 const G4Track& track,
376 G4doubl 649 G4double previousStepSize,
377 G4doubl 650 G4double currentMinimalStep,
378 G4doubl 651 G4double& currentSafety)
379 { 652 {
380 G4GPILSelection selection = NotCandidateForS 653 G4GPILSelection selection = NotCandidateForSelection;
381 G4double x = AlongStepGetPhysicalInteraction 654 G4double x = AlongStepGetPhysicalInteractionLength(track,previousStepSize,
382 655 currentMinimalStep,
383 656 currentSafety,
384 657 &selection);
385 return x; 658 return x;
386 } 659 }
387 660
388 //....oooOO0OOooo........oooOO0OOooo........oo 661 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
389 662
390 G4double G4VMultipleScattering::ContinuousStep 663 G4double G4VMultipleScattering::ContinuousStepLimit(
391 const G 664 const G4Track& track,
392 G4doubl 665 G4double previousStepSize,
393 G4doubl 666 G4double currentMinimalStep,
394 G4doubl 667 G4double& currentSafety)
395 { 668 {
396 return GetContinuousStepLimit(track,previous 669 return GetContinuousStepLimit(track,previousStepSize,currentMinimalStep,
397 currentSafety) 670 currentSafety);
398 } 671 }
399 672
400 //....oooOO0OOooo........oooOO0OOooo........oo 673 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
401 674
402 G4double G4VMultipleScattering::GetMeanFreePat 675 G4double G4VMultipleScattering::GetMeanFreePath(
403 const G4Track&, G4double, G4Forc 676 const G4Track&, G4double, G4ForceCondition* condition)
404 { 677 {
405 *condition = Forced; 678 *condition = Forced;
406 return DBL_MAX; 679 return DBL_MAX;
407 } 680 }
408 681
409 //....oooOO0OOooo........oooOO0OOooo........oo 682 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
410 683
411 G4bool 684 G4bool
412 G4VMultipleScattering::StorePhysicsTable(const 685 G4VMultipleScattering::StorePhysicsTable(const G4ParticleDefinition* part,
413 const 686 const G4String& directory,
414 G4boo 687 G4bool ascii)
415 { 688 {
416 G4bool yes = true; 689 G4bool yes = true;
417 if(part != firstParticle || !emManager->IsMa << 690 if(part != firstParticle) { return yes; }
418 << 691 const G4VMultipleScattering* masterProcess =
419 return G4EmTableUtil::StoreMscTable(this, pa << 692 static_cast<const G4VMultipleScattering*>(GetMasterProcess());
420 numberOfModels, verboseLevel, << 693 if(masterProcess && masterProcess != this) { return yes; }
421 ascii); << 694
>> 695 G4int nmod = modelManager->NumberOfModels();
>> 696 static const G4String ss[4] = {"1","2","3","4"};
>> 697 for(G4int i=0; i<nmod; ++i) {
>> 698 G4VEmModel* msc = modelManager->GetModel(i);
>> 699 yes = true;
>> 700 G4PhysicsTable* table = msc->GetCrossSectionTable();
>> 701 if (table) {
>> 702 G4int j = std::min(i,3);
>> 703 G4String name =
>> 704 GetPhysicsTableFileName(part,directory,"LambdaMod"+ss[j],ascii);
>> 705 yes = table->StorePhysicsTable(name,ascii);
>> 706
>> 707 if ( yes ) {
>> 708 if ( verboseLevel>0 ) {
>> 709 G4cout << "Physics table are stored for "
>> 710 << part->GetParticleName()
>> 711 << " and process " << GetProcessName()
>> 712 << " with a name <" << name << "> " << G4endl;
>> 713 }
>> 714 } else {
>> 715 G4cout << "Fail to store Physics Table for "
>> 716 << part->GetParticleName()
>> 717 << " and process " << GetProcessName()
>> 718 << " in the directory <" << directory
>> 719 << "> " << G4endl;
>> 720 }
>> 721 }
>> 722 }
>> 723 return yes;
422 } 724 }
423 725
424 //....oooOO0OOooo........oooOO0OOooo........oo 726 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
425 727
426 G4bool 728 G4bool
427 G4VMultipleScattering::RetrievePhysicsTable(co 729 G4VMultipleScattering::RetrievePhysicsTable(const G4ParticleDefinition*,
428 co 730 const G4String&,
429 G4 731 G4bool)
430 { 732 {
431 return true; 733 return true;
432 } 734 }
433 735
434 //....oooOO0OOooo........oooOO0OOooo........oo 736 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
435 737
436 void G4VMultipleScattering::ProcessDescription << 738 void G4VMultipleScattering::SetIonisation(G4VEnergyLossProcess* p)
437 { 739 {
438 if(nullptr != firstParticle) { << 740 for(G4int i=0; i<numberOfModels; ++i) {
439 StreamInfo(outFile, *firstParticle, true); << 741 G4VMscModel* msc = static_cast<G4VMscModel*>(GetModelByIndex(i, true));
>> 742 msc->SetIonisation(p, firstParticle);
440 } 743 }
>> 744 }
>> 745
>> 746 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 747
>> 748 void G4VMultipleScattering::ProcessDescription(std::ostream& outFile) const
>> 749 {
>> 750 outFile << "Multiple scattering process <" << GetProcessName()
>> 751 << ">" << G4endl;
441 } 752 }
442 753
443 //....oooOO0OOooo........oooOO0OOooo........oo 754 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
444 755
445 756