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25 // 25 //
>> 26 // $Id: G4VMultipleScattering.cc 90579 2015-06-04 10:00:26Z 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> <<
83 87
84 //....oooOO0OOooo........oooOO0OOooo........oo 88 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
85 89
86 G4VMultipleScattering::G4VMultipleScattering(c << 90 static const G4double minSafety = 1.20*CLHEP::nm;
87 : G4VContinuousDiscreteProcess("msc", fElect << 91 static const G4double geomMin = 0.05*CLHEP::nm;
>> 92 static const G4double minDisplacement2 = geomMin*geomMin;
>> 93
>> 94 G4VMultipleScattering::G4VMultipleScattering(const G4String& name,
>> 95 G4ProcessType):
>> 96 G4VContinuousDiscreteProcess("msc", fElectromagnetic),
>> 97 numberOfModels(0),
>> 98 firstParticle(0),
>> 99 currParticle(0),
>> 100 stepLimit(fUseSafety),
>> 101 facrange(0.04),
>> 102 latDisplacement(true),
>> 103 isIon(false),
88 fNewPosition(0.,0.,0.), 104 fNewPosition(0.,0.,0.),
89 fNewDirection(0.,0.,1.) << 105 fNewDirection(0.,0.,1.),
>> 106 fDispBeyondSafety(false)
90 { 107 {
91 theParameters = G4EmParameters::Instance(); 108 theParameters = G4EmParameters::Instance();
92 SetVerboseLevel(1); 109 SetVerboseLevel(1);
93 SetProcessSubType(fMultipleScattering); 110 SetProcessSubType(fMultipleScattering);
>> 111 if("ionmsc" == name) { firstParticle = G4GenericIon::GenericIon(); }
94 112
95 lowestKinEnergy = 10*CLHEP::eV; 113 lowestKinEnergy = 10*CLHEP::eV;
96 114
97 geomMin = 0.05*CLHEP::nm; << 115 physStepLimit = gPathLength = tPathLength = 0.0;
98 minDisplacement2 = geomMin*geomMin; << 116 fIonisation = 0;
99 117
100 pParticleChange = &fParticleChange; 118 pParticleChange = &fParticleChange;
101 << 119 safetyHelper = 0;
>> 120 fPositionChanged = false;
>> 121 isActive = false;
>> 122 actStepLimit = false;
>> 123 actFacRange = false;
>> 124 actLatDisp = false;
>> 125
>> 126 currentModel = 0;
102 modelManager = new G4EmModelManager(); 127 modelManager = new G4EmModelManager();
103 emManager = G4LossTableManager::Instance(); 128 emManager = G4LossTableManager::Instance();
104 mscModels.reserve(2); <<
105 emManager->Register(this); 129 emManager->Register(this);
106 } 130 }
107 131
108 //....oooOO0OOooo........oooOO0OOooo........oo 132 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
109 133
110 G4VMultipleScattering::~G4VMultipleScattering( 134 G4VMultipleScattering::~G4VMultipleScattering()
111 { 135 {
>> 136 /*
>> 137 if(1 < verboseLevel) {
>> 138 G4cout << "G4VMultipleScattering destruct " << GetProcessName()
>> 139 << G4endl;
>> 140 }
>> 141 */
112 delete modelManager; 142 delete modelManager;
113 emManager->DeRegister(this); 143 emManager->DeRegister(this);
114 } 144 }
115 145
116 //....oooOO0OOooo........oooOO0OOooo........oo 146 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
117 147
118 void G4VMultipleScattering::AddEmModel(G4int o << 148 void G4VMultipleScattering::AddEmModel(G4int order, G4VEmModel* p,
119 const G << 149 const G4Region* region)
120 { 150 {
121 if(nullptr == ptr) { return; } << 151 G4VEmFluctuationModel* fm = 0;
122 G4VEmFluctuationModel* fm = nullptr; << 152 modelManager->AddEmModel(order, p, fm, region);
123 modelManager->AddEmModel(order, ptr, fm, reg << 153 if(p) { p->SetParticleChange(pParticleChange); }
124 ptr->SetParticleChange(pParticleChange); <<
125 } 154 }
126 155
127 //....oooOO0OOooo........oooOO0OOooo........oo 156 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
128 157
129 void G4VMultipleScattering::SetEmModel(G4VMscM << 158 void G4VMultipleScattering::SetEmModel(G4VMscModel* p, G4int index)
130 { 159 {
131 if(nullptr == ptr) { return; } << 160 G4int n = mscModels.size();
132 if(!mscModels.empty()) { << 161 if(index >= n) { for(G4int i=n; i<=index; ++i) { mscModels.push_back(0); } }
133 for(auto & msc : mscModels) { if(msc == pt << 162 mscModels[index] = p;
134 } << 163 }
135 mscModels.push_back(ptr); << 164
>> 165 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 166
>> 167 G4VMscModel* G4VMultipleScattering::EmModel(G4int index) const
>> 168 {
>> 169 G4VMscModel* p = 0;
>> 170 if(index >= 0 && index < G4int(mscModels.size())) { p = mscModels[index]; }
>> 171 return p;
>> 172 }
>> 173
>> 174 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 175
>> 176 G4VEmModel*
>> 177 G4VMultipleScattering::GetModelByIndex(G4int idx, G4bool ver) const
>> 178 {
>> 179 return modelManager->GetModel(idx, ver);
136 } 180 }
137 181
138 //....oooOO0OOooo........oooOO0OOooo........oo 182 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
139 183
140 void 184 void
141 G4VMultipleScattering::PreparePhysicsTable(con 185 G4VMultipleScattering::PreparePhysicsTable(const G4ParticleDefinition& part)
142 { 186 {
143 G4bool master = emManager->IsMaster(); << 187 G4bool master = true;
144 if (nullptr == firstParticle) { firstParticl << 188 const G4VMultipleScattering* masterProc =
>> 189 static_cast<const G4VMultipleScattering*>(GetMasterProcess());
>> 190 if(masterProc && masterProc != this) { master = false; }
>> 191
>> 192 if(!firstParticle) { firstParticle = ∂ }
>> 193 if(part.GetParticleType() == "nucleus") {
>> 194 SetStepLimitType(fMinimal);
>> 195 SetLateralDisplasmentFlag(false);
>> 196 SetRangeFactor(0.2);
>> 197 G4String pname = part.GetParticleName();
>> 198 if(pname != "deuteron" && pname != "triton" &&
>> 199 pname != "alpha+" && pname != "helium" &&
>> 200 pname != "alpha" && pname != "He3" &&
>> 201 pname != "hydrogen") {
>> 202
>> 203 const G4ParticleDefinition* theGenericIon =
>> 204 G4ParticleTable::GetParticleTable()->FindParticle("GenericIon");
>> 205
>> 206 if(theGenericIon && firstParticle != theGenericIon) {
>> 207 G4ProcessManager* pm = theGenericIon->GetProcessManager();
>> 208 G4ProcessVector* v = pm->GetAlongStepProcessVector();
>> 209 size_t n = v->size();
>> 210 for(size_t j=0; j<n; ++j) {
>> 211 if((*v)[j] == this) {
>> 212 firstParticle = theGenericIon;
>> 213 isIon = true;
>> 214 break;
>> 215 }
>> 216 }
>> 217 }
>> 218 }
>> 219 }
145 220
146 emManager->PreparePhysicsTable(&part, this); << 221 emManager->PreparePhysicsTable(&part, this, master);
147 currParticle = nullptr; << 222 currParticle = 0;
>> 223
>> 224 if(1 < verboseLevel) {
>> 225 G4cout << "### G4VMultipleScattering::PrepearPhysicsTable() for "
>> 226 << GetProcessName()
>> 227 << " and particle " << part.GetParticleName()
>> 228 << " local particle " << firstParticle->GetParticleName()
>> 229 << " isIon= " << isIon
>> 230 << G4endl;
>> 231 }
148 232
149 if(firstParticle == &part) { 233 if(firstParticle == &part) {
150 baseMat = emManager->GetTableBuilder()->Ge <<
151 G4EmTableUtil::PrepareMscProcess(this, par <<
152 stepLimit, facrange, <<
153 latDisplacement, master, <<
154 isIon, baseMat); <<
155 234
>> 235 // initialise process
>> 236 InitialiseProcess(firstParticle);
>> 237 if(part.GetPDGMass() > MeV) {
>> 238 if(!actStepLimit) { stepLimit = fMinimal; }
>> 239 if(!actFacRange) { facrange = 0.2; }
>> 240 if(!actLatDisp) {
>> 241 latDisplacement = theParameters->MuHadLateralDisplacement();
>> 242 }
>> 243 } else {
>> 244 if(!actStepLimit) { stepLimit = theParameters->MscStepLimitType(); }
>> 245 if(!actFacRange) { facrange = theParameters->MscRangeFactor(); }
>> 246 if(!actLatDisp) {
>> 247 latDisplacement = theParameters->LateralDisplacement();
>> 248 }
>> 249 }
>> 250 if(latDisplacement) {
>> 251 fDispBeyondSafety = theParameters->LatDisplacementBeyondSafety();
>> 252 }
>> 253 if(master) { SetVerboseLevel(theParameters->Verbose()); }
>> 254 else { SetVerboseLevel(theParameters->WorkerVerbose()); }
>> 255
>> 256 // initialisation of models
156 numberOfModels = modelManager->NumberOfMod 257 numberOfModels = modelManager->NumberOfModels();
157 currentModel = GetModelByIndex(0); << 258 for(G4int i=0; i<numberOfModels; ++i) {
>> 259 G4VMscModel* msc = static_cast<G4VMscModel*>(modelManager->GetModel(i));
>> 260 msc->SetIonisation(0, firstParticle);
>> 261 msc->SetMasterThread(master);
>> 262 if(0 == i) { currentModel = msc; }
>> 263 msc->SetStepLimitType(stepLimit);
>> 264 msc->SetLateralDisplasmentFlag(latDisplacement);
>> 265 msc->SetSkin(theParameters->MscSkin());
>> 266 msc->SetRangeFactor(facrange);
>> 267 msc->SetGeomFactor(theParameters->MscGeomFactor());
>> 268 msc->SetPolarAngleLimit(theParameters->MscThetaLimit());
>> 269 G4double emax =
>> 270 std::min(msc->HighEnergyLimit(),theParameters->MaxKinEnergy());
>> 271 msc->SetHighEnergyLimit(emax);
>> 272 }
158 273
159 if (nullptr == safetyHelper) { << 274 modelManager->Initialise(firstParticle, G4Electron::Electron(),
>> 275 10.0, verboseLevel);
>> 276
>> 277 if(!safetyHelper) {
160 safetyHelper = G4TransportationManager:: 278 safetyHelper = G4TransportationManager::GetTransportationManager()
161 ->GetSafetyHelper(); 279 ->GetSafetyHelper();
162 safetyHelper->InitialiseHelper(); 280 safetyHelper->InitialiseHelper();
163 } 281 }
164 } 282 }
165 } 283 }
166 284
167 //....oooOO0OOooo........oooOO0OOooo........oo 285 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
168 286
169 void G4VMultipleScattering::BuildPhysicsTable( 287 void G4VMultipleScattering::BuildPhysicsTable(const G4ParticleDefinition& part)
170 { 288 {
171 G4bool master = emManager->IsMaster(); << 289 G4String num = part.GetParticleName();
172 << 290 if(1 < verboseLevel) {
173 if(firstParticle == &part) { << 291 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
174 emManager->BuildPhysicsTable(&part); << 292 << GetProcessName()
>> 293 << " and particle " << num
>> 294 << " IsMaster= " << G4LossTableManager::Instance()->IsMaster()
>> 295 << G4endl;
175 } 296 }
176 const G4VMultipleScattering* ptr = this; << 297 G4bool master = true;
177 if(!master) { << 298 const G4VMultipleScattering* masterProcess =
178 ptr = static_cast<const G4VMultipleScatter << 299 static_cast<const G4VMultipleScattering*>(GetMasterProcess());
>> 300 if(masterProcess && masterProcess != this) { master = false; }
>> 301
>> 302 if(firstParticle == &part) {
>> 303 /*
>> 304 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
>> 305 << GetProcessName()
>> 306 << " and particle " << num
>> 307 << " IsMaster= " << G4LossTableManager::Instance()->IsMaster()
>> 308 << " " << this
>> 309 << G4endl;
>> 310 */
>> 311 emManager->BuildPhysicsTable(firstParticle);
>> 312
>> 313 if(!master) {
>> 314 // initialisation of models
>> 315 G4bool printing = true;
>> 316 numberOfModels = modelManager->NumberOfModels();
>> 317 /*
>> 318 G4cout << "### G4VMultipleScattering::SlaveBuildPhysicsTable() for "
>> 319 << GetProcessName()
>> 320 << " and particle " << num
>> 321 << " Nmod= " << numberOfModels << " " << this
>> 322 << G4endl;
>> 323 */
>> 324 for(G4int i=0; i<numberOfModels; ++i) {
>> 325 G4VMscModel* msc =
>> 326 static_cast<G4VMscModel*>(GetModelByIndex(i, printing));
>> 327 G4VMscModel* msc0=
>> 328 static_cast<G4VMscModel*>(masterProcess->GetModelByIndex(i,printing));
>> 329 msc->SetCrossSectionTable(msc0->GetCrossSectionTable(), false);
>> 330 msc->InitialiseLocal(firstParticle, msc0);
>> 331 }
>> 332 }
179 } 333 }
180 334
181 G4EmTableUtil::BuildMscProcess(this, ptr, pa << 335 // explicitly defined printout by particle name
182 numberOfModels, master); << 336 if(1 < verboseLevel ||
>> 337 (0 < verboseLevel && (num == "e-" ||
>> 338 num == "e+" || num == "mu+" ||
>> 339 num == "mu-" || num == "proton"||
>> 340 num == "pi+" || num == "pi-" ||
>> 341 num == "kaon+" || num == "kaon-" ||
>> 342 num == "alpha" || num == "anti_proton" ||
>> 343 num == "GenericIon")))
>> 344 {
>> 345 G4cout << G4endl << GetProcessName()
>> 346 << ": for " << num
>> 347 << " SubType= " << GetProcessSubType()
>> 348 << G4endl;
>> 349 PrintInfo();
>> 350 modelManager->DumpModelList(verboseLevel);
>> 351 }
>> 352
>> 353 if(1 < verboseLevel) {
>> 354 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() done for "
>> 355 << GetProcessName()
>> 356 << " and particle " << num
>> 357 << G4endl;
>> 358 }
183 } 359 }
184 360
185 //....oooOO0OOooo........oooOO0OOooo........oo 361 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
186 362
187 void G4VMultipleScattering::StreamInfo(std::os << 363 void G4VMultipleScattering::PrintInfoDefinition()
188 const G4ParticleDefinition& <<
189 { 364 {
190 G4String indent = (rst ? " " : ""); << 365 if (0 < verboseLevel) {
191 outFile << G4endl << indent << GetProcessNam << 366 G4cout << G4endl << GetProcessName()
192 if (!rst) outFile << " for " << part.GetPart << 367 << ": for " << firstParticle->GetParticleName()
193 outFile << " SubType= " << GetProcessSubTy << 368 << " SubType= " << GetProcessSubType()
194 modelManager->DumpModelList(outFile, verbose << 369 << G4endl;
>> 370 PrintInfo();
>> 371 modelManager->DumpModelList(verboseLevel);
>> 372 }
195 } 373 }
196 374
197 //....oooOO0OOooo........oooOO0OOooo........oo 375 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
198 376
199 void G4VMultipleScattering::StartTracking(G4Tr 377 void G4VMultipleScattering::StartTracking(G4Track* track)
200 { 378 {
201 G4VEnergyLossProcess* eloss = nullptr; << 379 G4VEnergyLossProcess* eloss = 0;
202 if(track->GetParticleDefinition() != currPar 380 if(track->GetParticleDefinition() != currParticle) {
203 currParticle = track->GetParticleDefinitio 381 currParticle = track->GetParticleDefinition();
204 fIonisation = emManager->GetEnergyLossProc 382 fIonisation = emManager->GetEnergyLossProcess(currParticle);
205 eloss = fIonisation; 383 eloss = fIonisation;
206 } 384 }
207 for(G4int i=0; i<numberOfModels; ++i) { << 385 /*
208 G4VMscModel* msc = GetModelByIndex(i); << 386 G4cout << "G4VMultipleScattering::StartTracking Nmod= " << numberOfModels
209 msc->StartTracking(track); << 387 << " " << currParticle->GetParticleName()
210 if(nullptr != eloss) { << 388 << " E(MeV)= " << track->GetKineticEnergy()
211 msc->SetIonisation(eloss, currParticle); << 389 << " Ion= " << eloss << " " << fIonisation << " IsMaster= "
>> 390 << G4LossTableManager::Instance()->IsMaster()
>> 391 << G4endl;
>> 392 */
>> 393 // one model
>> 394 if(1 == numberOfModels) {
>> 395 currentModel->StartTracking(track);
>> 396 if(eloss) { currentModel->SetIonisation(fIonisation, currParticle); }
>> 397
>> 398 // many models
>> 399 } else {
>> 400 for(G4int i=0; i<numberOfModels; ++i) {
>> 401 G4VMscModel* msc = static_cast<G4VMscModel*>(GetModelByIndex(i,true));
>> 402 msc->StartTracking(track);
>> 403 if(eloss) { msc->SetIonisation(fIonisation, currParticle); }
212 } 404 }
213 } 405 }
214 } << 406 }
215 407
216 //....oooOO0OOooo........oooOO0OOooo........oo 408 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
217 409
218 G4double G4VMultipleScattering::AlongStepGetPh 410 G4double G4VMultipleScattering::AlongStepGetPhysicalInteractionLength(
219 const G4Track& tr 411 const G4Track& track,
220 G4double, 412 G4double,
221 G4double currentM 413 G4double currentMinimalStep,
222 G4double&, 414 G4double&,
223 G4GPILSelection* 415 G4GPILSelection* selection)
224 { 416 {
225 // get Step limit proposed by the process 417 // get Step limit proposed by the process
226 *selection = NotCandidateForSelection; 418 *selection = NotCandidateForSelection;
227 physStepLimit = gPathLength = tPathLength = 419 physStepLimit = gPathLength = tPathLength = currentMinimalStep;
228 420
229 G4double ekin = track.GetKineticEnergy(); 421 G4double ekin = track.GetKineticEnergy();
230 /* 422 /*
231 G4cout << "MSC::AlongStepGPIL: Ekin= " << ek 423 G4cout << "MSC::AlongStepGPIL: Ekin= " << ekin
232 << " " << currParticle->GetParticleN 424 << " " << currParticle->GetParticleName()
233 << " currMod " << currentModel << 425 << " currMod " << currentModel
234 << G4endl; << 426 << G4endl;
235 */ 427 */
236 // isIon flag is used only to select a model 428 // isIon flag is used only to select a model
237 if(isIon) { 429 if(isIon) {
238 ekin *= proton_mass_c2/track.GetParticleDe 430 ekin *= proton_mass_c2/track.GetParticleDefinition()->GetPDGMass();
239 } 431 }
240 const G4MaterialCutsCouple* couple = track.G <<
241 432
242 // select new model, static cast is possible << 433 // select new model
243 if(1 < numberOfModels) { 434 if(1 < numberOfModels) {
244 currentModel = << 435 currentModel = static_cast<G4VMscModel*>(
245 static_cast<G4VMscModel*>(SelectModel(ek << 436 SelectModel(ekin,track.GetMaterialCutsCouple()->GetIndex()));
246 } 437 }
247 currentModel->SetCurrentCouple(couple); <<
248 // msc is active is model is active, energy 438 // msc is active is model is active, energy above the limit,
249 // and step size is above the limit; 439 // and step size is above the limit;
250 // if it is active msc may limit the step 440 // if it is active msc may limit the step
251 if(currentModel->IsActive(ekin) && tPathLeng 441 if(currentModel->IsActive(ekin) && tPathLength > geomMin
252 && ekin >= lowestKinEnergy) { 442 && ekin >= lowestKinEnergy) {
253 isActive = true; 443 isActive = true;
254 tPathLength = 444 tPathLength =
255 currentModel->ComputeTruePathLengthLimit 445 currentModel->ComputeTruePathLengthLimit(track, gPathLength);
256 if (tPathLength < physStepLimit) { 446 if (tPathLength < physStepLimit) {
257 *selection = CandidateForSelection; 447 *selection = CandidateForSelection;
258 } 448 }
259 } else { << 449 } else { isActive = false; }
260 isActive = false; <<
261 gPathLength = DBL_MAX; <<
262 } <<
263 450
264 //if(currParticle->GetPDGMass() > GeV) 451 //if(currParticle->GetPDGMass() > GeV)
265 /* 452 /*
266 G4cout << "MSC::AlongStepGPIL: Ekin= " << ek 453 G4cout << "MSC::AlongStepGPIL: Ekin= " << ekin
267 << " " << currParticle->GetParticleN 454 << " " << currParticle->GetParticleName()
268 << " gPathLength= " << gPathLength << 455 << " gPathLength= " << gPathLength
269 << " tPathLength= " << tPathLength << 456 << " tPathLength= " << tPathLength
270 << " currentMinimalStep= " << current << 457 << " currentMinimalStep= " << currentMinimalStep
271 << " isActive " << isActive << G4endl << 458 << " isActive " << isActive << G4endl;
272 */ 459 */
273 return gPathLength; 460 return gPathLength;
274 } 461 }
275 462
276 //....oooOO0OOooo........oooOO0OOooo........oo 463 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
277 464
278 G4double 465 G4double
279 G4VMultipleScattering::PostStepGetPhysicalInte 466 G4VMultipleScattering::PostStepGetPhysicalInteractionLength(
280 const G4Track&, G4double, G4Forc 467 const G4Track&, G4double, G4ForceCondition* condition)
281 { 468 {
282 *condition = NotForced; << 469 *condition = Forced;
>> 470 //*condition = NotForced;
283 return DBL_MAX; 471 return DBL_MAX;
284 } 472 }
285 473
286 //....oooOO0OOooo........oooOO0OOooo........oo 474 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
287 475
288 G4VParticleChange* 476 G4VParticleChange*
289 G4VMultipleScattering::AlongStepDoIt(const G4T 477 G4VMultipleScattering::AlongStepDoIt(const G4Track& track, const G4Step& step)
290 { 478 {
291 fParticleChange.InitialiseMSC(track, step); << 479 fParticleChange.ProposeMomentumDirection(
292 fNewPosition = fParticleChange.GetProposedPo << 480 step.GetPostStepPoint()->GetMomentumDirection());
>> 481 fNewPosition = step.GetPostStepPoint()->GetPosition();
>> 482 fParticleChange.ProposePosition(fNewPosition);
293 fPositionChanged = false; 483 fPositionChanged = false;
294 484
295 G4double geomLength = step.GetStepLength(); 485 G4double geomLength = step.GetStepLength();
296 486
297 // very small step - no msc 487 // very small step - no msc
298 if(!isActive) { 488 if(!isActive) {
299 tPathLength = geomLength; 489 tPathLength = geomLength;
300 490
301 // sample msc 491 // sample msc
302 } else { 492 } else {
303 G4double range = 493 G4double range =
304 currentModel->GetRange(currParticle,trac 494 currentModel->GetRange(currParticle,track.GetKineticEnergy(),
305 track.GetMaterial << 495 track.GetMaterialCutsCouple());
306 496
307 tPathLength = currentModel->ComputeTrueSte 497 tPathLength = currentModel->ComputeTrueStepLength(geomLength);
308 498
>> 499 // protection against wrong t->g->t conversion
309 /* 500 /*
310 if(currParticle->GetPDGMass() > 0.9*GeV) 501 if(currParticle->GetPDGMass() > 0.9*GeV)
311 G4cout << "G4VMsc::AlongStepDoIt: GeomLeng 502 G4cout << "G4VMsc::AlongStepDoIt: GeomLength= "
312 << geomLength << 503 << geomLength
313 << " tPathLength= " << tPathLength << 504 << " tPathLength= " << tPathLength
314 << " physStepLimit= " << physStepLi << 505 << " physStepLimit= " << physStepLimit
315 << " dr= " << range - tPathLength << 506 << " dr= " << range - tPathLength
316 << " ekin= " << track.GetKineticEne << 507 << " ekin= " << track.GetKineticEnergy() << G4endl;
317 */ 508 */
318 // protection against wrong t->g->t conver <<
319 tPathLength = std::min(tPathLength, physSt 509 tPathLength = std::min(tPathLength, physStepLimit);
320 510
321 // do not sample scattering at the last or 511 // do not sample scattering at the last or at a small step
322 if(tPathLength < range && tPathLength > ge 512 if(tPathLength < range && tPathLength > geomMin) {
323 513
324 static const G4double minSafety = 1.20*C <<
325 static const G4double sFact = 0.99; <<
326 <<
327 G4ThreeVector displacement = currentMode 514 G4ThreeVector displacement = currentModel->SampleScattering(
328 step.GetPostStepPoint()->GetMomentumDi << 515 step.GetPostStepPoint()->GetMomentumDirection(),minSafety);
329 516
330 G4double r2 = displacement.mag2(); 517 G4double r2 = displacement.mag2();
331 //G4cout << " R= " << sqrt(r2) << " R 518 //G4cout << " R= " << sqrt(r2) << " Rmin= " << sqrt(minDisplacement2)
332 // << " flag= " << fDispBeyondSafety 519 // << " flag= " << fDispBeyondSafety << G4endl;
333 if(r2 > minDisplacement2) { 520 if(r2 > minDisplacement2) {
334 521
335 fPositionChanged = true; << 522 fPositionChanged = true;
336 G4double dispR = std::sqrt(r2); << 523 const G4double sFact = 0.99;
337 G4double postSafety = << 524 G4double postSafety =
338 sFact*safetyHelper->ComputeSafety(fN << 525 sFact*(step.GetPreStepPoint()->GetSafety() - geomLength);
339 //G4cout<<" R= "<< dispR<<" postSaf << 526 //G4cout<<" R= "<<sqrt(r2)<<" postSafety= "<<postSafety<<G4endl;
340 << 527
341 // far away from geometry boundary << 528 // far away from geometry boundary
342 if(postSafety > 0.0 && dispR <= postSa << 529 if(postSafety > 0.0 && r2 <= postSafety*postSafety) {
343 fNewPosition += displacement; << 530 fNewPosition += displacement;
344 << 531
345 //near the boundary << 532 } else {
346 } else { << 533 G4double dispR = std::sqrt(r2);
347 // displaced point is definitely wit << 534 postSafety =
348 //G4cout<<" R= "<<dispR<<" postSa << 535 sFact*safetyHelper->ComputeSafety(fNewPosition, dispR);
349 if(dispR < postSafety) { << 536
350 fNewPosition += displacement; << 537 // displaced point is definitely within the volume
351 << 538 //G4cout<<" R= "<<dispR<<" postSafety= "<<postSafety<<G4endl;
352 // reduced displacement << 539 if(dispR < postSafety) {
353 } else if(postSafety > geomMin) { << 540 fNewPosition += displacement;
354 fNewPosition += displacement*(post << 541
355 << 542 // optional extra mechanism is applied only if a particle
356 // very small postSafety << 543 // is stopped by the boundary
357 } else { << 544 } else if(fDispBeyondSafety && 0.0 == postSafety) {
358 fPositionChanged = false; << 545 fNewPosition += displacement;
359 } << 546 G4double maxshift =
360 } << 547 std::min(2.0*dispR, physStepLimit-tPathLength);
361 if(fPositionChanged) { << 548 G4double dist = 0.0;
362 safetyHelper->ReLocateWithinVolume(f << 549 G4double safety = postSafety + dispR;
363 fParticleChange.ProposePosition(fNew << 550 fNewDirection = *(fParticleChange.GetMomentumDirection());
364 } << 551 /*
>> 552 G4cout << "##MSC before Recheck maxshift= " << maxshift
>> 553 << " postsafety= " << postSafety
>> 554 << " Ekin= " << track.GetKineticEnergy()
>> 555 << " " << track.GetDefinition()->GetParticleName()
>> 556 << G4endl;
>> 557 */
>> 558 // check if it is possible to shift to the boundary
>> 559 if(safetyHelper->RecheckDistanceToCurrentBoundary(fNewPosition,
>> 560 fNewDirection,
>> 561 maxshift,
>> 562 &dist,
>> 563 &safety))
>> 564 {
>> 565 /*
>> 566 G4cout << "##MSC after Recheck dist= " << dist
>> 567 << " postsafety= " << postSafety
>> 568 << " t= " << tPathLength
>> 569 << " g= " << geomLength
>> 570 << " p= " << physStepLimit
>> 571 << G4endl;
>> 572 */
>> 573 G4double tnew = tPathLength*(1.0 + dist/geomLength);
>> 574 if(tnew >= 0.0 && tnew < physStepLimit) {
>> 575 tPathLength = tnew;
>> 576 fNewPosition += dist*fNewDirection;
>> 577 } else {
>> 578 fNewPosition += displacement*(postSafety/dispR - 1.0);
>> 579 }
>> 580 }
>> 581 else
>> 582 // shift on boundary is not possible
>> 583 {
>> 584 fNewPosition += displacement*(postSafety/dispR - 1.0);
>> 585 }
>> 586 // reduced displacement
>> 587 } else if(postSafety > geomMin) {
>> 588 fNewPosition += displacement*(postSafety/dispR);
>> 589
>> 590 // very small postSafety
>> 591 } else {
>> 592 fPositionChanged = false;
>> 593 }
>> 594 }
>> 595 //safetyHelper->ReLocateWithinVolume(fNewPosition);
365 } 596 }
366 } 597 }
367 } 598 }
368 fParticleChange.ProposeTrueStepLength(tPathL 599 fParticleChange.ProposeTrueStepLength(tPathLength);
>> 600 //fParticleChange.ProposePosition(fNewPosition);
>> 601 return &fParticleChange;
>> 602 }
>> 603
>> 604 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 605
>> 606 G4VParticleChange*
>> 607 G4VMultipleScattering::PostStepDoIt(const G4Track& track, const G4Step&)
>> 608 {
>> 609 fParticleChange.Initialize(track);
>> 610
>> 611 if(fPositionChanged) {
>> 612 safetyHelper->ReLocateWithinVolume(fNewPosition);
>> 613 fParticleChange.ProposePosition(fNewPosition);
>> 614 }
>> 615
369 return &fParticleChange; 616 return &fParticleChange;
370 } 617 }
371 618
372 //....oooOO0OOooo........oooOO0OOooo........oo 619 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
373 620
374 G4double G4VMultipleScattering::GetContinuousS 621 G4double G4VMultipleScattering::GetContinuousStepLimit(
375 const G 622 const G4Track& track,
376 G4doubl 623 G4double previousStepSize,
377 G4doubl 624 G4double currentMinimalStep,
378 G4doubl 625 G4double& currentSafety)
379 { 626 {
380 G4GPILSelection selection = NotCandidateForS 627 G4GPILSelection selection = NotCandidateForSelection;
381 G4double x = AlongStepGetPhysicalInteraction 628 G4double x = AlongStepGetPhysicalInteractionLength(track,previousStepSize,
382 << 629 currentMinimalStep,
383 << 630 currentSafety,
384 << 631 &selection);
385 return x; 632 return x;
386 } 633 }
387 634
388 //....oooOO0OOooo........oooOO0OOooo........oo 635 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
389 636
390 G4double G4VMultipleScattering::ContinuousStep 637 G4double G4VMultipleScattering::ContinuousStepLimit(
391 const G 638 const G4Track& track,
392 G4doubl 639 G4double previousStepSize,
393 G4doubl 640 G4double currentMinimalStep,
394 G4doubl 641 G4double& currentSafety)
395 { 642 {
396 return GetContinuousStepLimit(track,previous 643 return GetContinuousStepLimit(track,previousStepSize,currentMinimalStep,
397 currentSafety) << 644 currentSafety);
398 } 645 }
399 646
400 //....oooOO0OOooo........oooOO0OOooo........oo 647 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
401 648
402 G4double G4VMultipleScattering::GetMeanFreePat 649 G4double G4VMultipleScattering::GetMeanFreePath(
403 const G4Track&, G4double, G4Forc 650 const G4Track&, G4double, G4ForceCondition* condition)
404 { 651 {
405 *condition = Forced; 652 *condition = Forced;
406 return DBL_MAX; 653 return DBL_MAX;
407 } 654 }
408 655
409 //....oooOO0OOooo........oooOO0OOooo........oo 656 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
410 657
411 G4bool 658 G4bool
412 G4VMultipleScattering::StorePhysicsTable(const 659 G4VMultipleScattering::StorePhysicsTable(const G4ParticleDefinition* part,
413 const << 660 const G4String& directory,
414 G4boo << 661 G4bool ascii)
415 { 662 {
416 G4bool yes = true; 663 G4bool yes = true;
417 if(part != firstParticle || !emManager->IsMa << 664 if(part != firstParticle) { return yes; }
418 << 665 const G4VMultipleScattering* masterProcess =
419 return G4EmTableUtil::StoreMscTable(this, pa << 666 static_cast<const G4VMultipleScattering*>(GetMasterProcess());
420 numberOfModels, verboseLevel, << 667 if(masterProcess && masterProcess != this) { return yes; }
421 ascii); << 668
>> 669 G4int nmod = modelManager->NumberOfModels();
>> 670 static const G4String ss[4] = {"1","2","3","4"};
>> 671 for(G4int i=0; i<nmod; ++i) {
>> 672 G4VEmModel* msc = modelManager->GetModel(i);
>> 673 yes = true;
>> 674 G4PhysicsTable* table = msc->GetCrossSectionTable();
>> 675 if (table) {
>> 676 G4int j = std::min(i,3);
>> 677 G4String name =
>> 678 GetPhysicsTableFileName(part,directory,"LambdaMod"+ss[j],ascii);
>> 679 yes = table->StorePhysicsTable(name,ascii);
>> 680
>> 681 if ( yes ) {
>> 682 if ( verboseLevel>0 ) {
>> 683 G4cout << "Physics table are stored for "
>> 684 << part->GetParticleName()
>> 685 << " and process " << GetProcessName()
>> 686 << " with a name <" << name << "> " << G4endl;
>> 687 }
>> 688 } else {
>> 689 G4cout << "Fail to store Physics Table for "
>> 690 << part->GetParticleName()
>> 691 << " and process " << GetProcessName()
>> 692 << " in the directory <" << directory
>> 693 << "> " << G4endl;
>> 694 }
>> 695 }
>> 696 }
>> 697 return yes;
422 } 698 }
423 699
424 //....oooOO0OOooo........oooOO0OOooo........oo 700 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
425 701
426 G4bool 702 G4bool
427 G4VMultipleScattering::RetrievePhysicsTable(co 703 G4VMultipleScattering::RetrievePhysicsTable(const G4ParticleDefinition*,
428 co << 704 const G4String&,
429 G4 << 705 G4bool)
430 { 706 {
431 return true; 707 return true;
432 } 708 }
433 709
434 //....oooOO0OOooo........oooOO0OOooo........oo 710 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
435 711
436 void G4VMultipleScattering::ProcessDescription << 712 void G4VMultipleScattering::SetIonisation(G4VEnergyLossProcess* p)
437 { 713 {
438 if(nullptr != firstParticle) { << 714 for(G4int i=0; i<numberOfModels; ++i) {
439 StreamInfo(outFile, *firstParticle, true); << 715 G4VMscModel* msc = static_cast<G4VMscModel*>(GetModelByIndex(i, true));
>> 716 msc->SetIonisation(p, firstParticle);
440 } 717 }
441 } 718 }
442 719
443 //....oooOO0OOooo........oooOO0OOooo........oo 720 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
444 721
445 722