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25 // 25 //
>> 26 // $Id: G4VMultipleScattering.cc 94120 2015-11-06 09:18:03Z 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 static const G4double minSafety = 1.20*CLHEP::nm;
87 : G4VContinuousDiscreteProcess("msc", fElect << 92 static const G4double geomMin = 0.05*CLHEP::nm;
>> 93 static const G4double minDisplacement2 = geomMin*geomMin;
>> 94
>> 95 G4VMultipleScattering::G4VMultipleScattering(const G4String& name,
>> 96 G4ProcessType):
>> 97 G4VContinuousDiscreteProcess("msc", fElectromagnetic),
>> 98 numberOfModels(0),
>> 99 firstParticle(nullptr),
>> 100 currParticle(nullptr),
>> 101 stepLimit(fUseSafety),
>> 102 facrange(0.04),
>> 103 latDisplacement(true),
>> 104 isIon(false),
>> 105 fDispBeyondSafety(false),
88 fNewPosition(0.,0.,0.), 106 fNewPosition(0.,0.,0.),
89 fNewDirection(0.,0.,1.) 107 fNewDirection(0.,0.,1.)
90 { 108 {
91 theParameters = G4EmParameters::Instance(); 109 theParameters = G4EmParameters::Instance();
92 SetVerboseLevel(1); 110 SetVerboseLevel(1);
93 SetProcessSubType(fMultipleScattering); 111 SetProcessSubType(fMultipleScattering);
>> 112 if("ionmsc" == name) { firstParticle = G4GenericIon::GenericIon(); }
94 113
95 lowestKinEnergy = 10*CLHEP::eV; 114 lowestKinEnergy = 10*CLHEP::eV;
96 115
97 geomMin = 0.05*CLHEP::nm; << 116 physStepLimit = gPathLength = tPathLength = 0.0;
98 minDisplacement2 = geomMin*geomMin; << 117 fIonisation = nullptr;
99 118
100 pParticleChange = &fParticleChange; 119 pParticleChange = &fParticleChange;
>> 120 safetyHelper = nullptr;
>> 121 fPositionChanged = false;
>> 122 isActive = false;
101 123
>> 124 currentModel = nullptr;
102 modelManager = new G4EmModelManager(); 125 modelManager = new G4EmModelManager();
103 emManager = G4LossTableManager::Instance(); 126 emManager = G4LossTableManager::Instance();
104 mscModels.reserve(2); <<
105 emManager->Register(this); 127 emManager->Register(this);
106 } 128 }
107 129
108 //....oooOO0OOooo........oooOO0OOooo........oo 130 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
109 131
110 G4VMultipleScattering::~G4VMultipleScattering( 132 G4VMultipleScattering::~G4VMultipleScattering()
111 { 133 {
>> 134 /*
>> 135 if(1 < verboseLevel) {
>> 136 G4cout << "G4VMultipleScattering destruct " << GetProcessName()
>> 137 << G4endl;
>> 138 }
>> 139 */
112 delete modelManager; 140 delete modelManager;
113 emManager->DeRegister(this); 141 emManager->DeRegister(this);
114 } 142 }
115 143
116 //....oooOO0OOooo........oooOO0OOooo........oo 144 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
117 145
118 void G4VMultipleScattering::AddEmModel(G4int o << 146 void G4VMultipleScattering::AddEmModel(G4int order, G4VEmModel* p,
119 const G 147 const G4Region* region)
120 { 148 {
121 if(nullptr == ptr) { return; } <<
122 G4VEmFluctuationModel* fm = nullptr; 149 G4VEmFluctuationModel* fm = nullptr;
123 modelManager->AddEmModel(order, ptr, fm, reg << 150 modelManager->AddEmModel(order, p, fm, region);
124 ptr->SetParticleChange(pParticleChange); << 151 if(p) { p->SetParticleChange(pParticleChange); }
125 } 152 }
126 153
127 //....oooOO0OOooo........oooOO0OOooo........oo 154 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
128 155
129 void G4VMultipleScattering::SetEmModel(G4VMscM << 156 void G4VMultipleScattering::SetEmModel(G4VMscModel* p, G4int index)
130 { 157 {
131 if(nullptr == ptr) { return; } << 158 G4int n = mscModels.size();
132 if(!mscModels.empty()) { << 159 if(index >= n) { for(G4int i=n; i<=index; ++i) { mscModels.push_back(0); } }
133 for(auto & msc : mscModels) { if(msc == pt << 160 mscModels[index] = p;
134 } << 161 }
135 mscModels.push_back(ptr); << 162
>> 163 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 164
>> 165 G4VMscModel* G4VMultipleScattering::EmModel(G4int index) const
>> 166 {
>> 167 G4VMscModel* p = nullptr;
>> 168 if(index >= 0 && index < G4int(mscModels.size())) { p = mscModels[index]; }
>> 169 return p;
>> 170 }
>> 171
>> 172 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 173
>> 174 G4VEmModel*
>> 175 G4VMultipleScattering::GetModelByIndex(G4int idx, G4bool ver) const
>> 176 {
>> 177 return modelManager->GetModel(idx, ver);
136 } 178 }
137 179
138 //....oooOO0OOooo........oooOO0OOooo........oo 180 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
139 181
140 void 182 void
141 G4VMultipleScattering::PreparePhysicsTable(con 183 G4VMultipleScattering::PreparePhysicsTable(const G4ParticleDefinition& part)
142 { 184 {
143 G4bool master = emManager->IsMaster(); << 185 G4bool master = true;
144 if (nullptr == firstParticle) { firstParticl << 186 const G4VMultipleScattering* masterProc =
>> 187 static_cast<const G4VMultipleScattering*>(GetMasterProcess());
>> 188 if(masterProc && masterProc != this) { master = false; }
>> 189
>> 190 if(!firstParticle) { firstParticle = ∂ }
>> 191 if(part.GetParticleType() == "nucleus") {
>> 192 stepLimit = fMinimal;
>> 193 latDisplacement = false;
>> 194 facrange = 0.2;
>> 195 G4String pname = part.GetParticleName();
>> 196 if(pname != "deuteron" && pname != "triton" &&
>> 197 pname != "alpha+" && pname != "helium" &&
>> 198 pname != "alpha" && pname != "He3" &&
>> 199 pname != "hydrogen") {
>> 200
>> 201 const G4ParticleDefinition* theGenericIon =
>> 202 G4ParticleTable::GetParticleTable()->FindParticle("GenericIon");
>> 203 if(&part == theGenericIon) { isIon = true; }
>> 204
>> 205 if(theGenericIon && firstParticle != theGenericIon) {
>> 206 G4ProcessManager* pm = theGenericIon->GetProcessManager();
>> 207 G4ProcessVector* v = pm->GetAlongStepProcessVector();
>> 208 size_t n = v->size();
>> 209 for(size_t j=0; j<n; ++j) {
>> 210 if((*v)[j] == this) {
>> 211 firstParticle = theGenericIon;
>> 212 isIon = true;
>> 213 break;
>> 214 }
>> 215 }
>> 216 }
>> 217 }
>> 218 }
>> 219
>> 220 emManager->PreparePhysicsTable(&part, this, master);
>> 221 currParticle = 0;
145 222
146 emManager->PreparePhysicsTable(&part, this); << 223 if(1 < verboseLevel) {
147 currParticle = nullptr; << 224 G4cout << "### G4VMultipleScattering::PrepearPhysicsTable() for "
>> 225 << GetProcessName()
>> 226 << " and particle " << part.GetParticleName()
>> 227 << " local particle " << firstParticle->GetParticleName()
>> 228 << " isIon= " << isIon
>> 229 << G4endl;
>> 230 }
148 231
149 if(firstParticle == &part) { 232 if(firstParticle == &part) {
150 baseMat = emManager->GetTableBuilder()->Ge <<
151 G4EmTableUtil::PrepareMscProcess(this, par <<
152 stepLimit, facrange, <<
153 latDisplacement, master, <<
154 isIon, baseMat); <<
155 233
>> 234 // initialise process
>> 235 InitialiseProcess(firstParticle);
>> 236
>> 237 // heavy particles and not ions
>> 238 if(!isIon) {
>> 239 if(part.GetPDGMass() > MeV) {
>> 240 stepLimit = theParameters->MscMuHadStepLimitType();
>> 241 facrange = theParameters->MscMuHadRangeFactor();
>> 242 latDisplacement = theParameters->MuHadLateralDisplacement();
>> 243 } else {
>> 244 stepLimit = theParameters->MscStepLimitType();
>> 245 facrange = theParameters->MscRangeFactor();
>> 246 latDisplacement = theParameters->LateralDisplacement();
>> 247 }
>> 248 if(latDisplacement) {
>> 249 fDispBeyondSafety = theParameters->LatDisplacementBeyondSafety();
>> 250 }
>> 251 }
>> 252 if(master) { SetVerboseLevel(theParameters->Verbose()); }
>> 253 else { SetVerboseLevel(theParameters->WorkerVerbose()); }
>> 254
>> 255 // initialisation of models
156 numberOfModels = modelManager->NumberOfMod 256 numberOfModels = modelManager->NumberOfModels();
157 currentModel = GetModelByIndex(0); << 257 for(G4int i=0; i<numberOfModels; ++i) {
>> 258 G4VMscModel* msc = static_cast<G4VMscModel*>(modelManager->GetModel(i));
>> 259 msc->SetIonisation(0, firstParticle);
>> 260 msc->SetMasterThread(master);
>> 261 if(0 == i) { currentModel = msc; }
>> 262 msc->SetStepLimitType(stepLimit);
>> 263 msc->SetLateralDisplasmentFlag(latDisplacement);
>> 264 msc->SetSkin(theParameters->MscSkin());
>> 265 msc->SetRangeFactor(facrange);
>> 266 msc->SetGeomFactor(theParameters->MscGeomFactor());
>> 267 msc->SetPolarAngleLimit(theParameters->MscThetaLimit());
>> 268 G4double emax =
>> 269 std::min(msc->HighEnergyLimit(),theParameters->MaxKinEnergy());
>> 270 msc->SetHighEnergyLimit(emax);
>> 271 }
>> 272
>> 273 modelManager->Initialise(firstParticle, G4Electron::Electron(),
>> 274 10.0, verboseLevel);
158 275
159 if (nullptr == safetyHelper) { << 276 if(!safetyHelper) {
160 safetyHelper = G4TransportationManager:: 277 safetyHelper = G4TransportationManager::GetTransportationManager()
161 ->GetSafetyHelper(); << 278 ->GetSafetyHelper();
162 safetyHelper->InitialiseHelper(); 279 safetyHelper->InitialiseHelper();
163 } 280 }
164 } 281 }
165 } 282 }
166 283
167 //....oooOO0OOooo........oooOO0OOooo........oo 284 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
168 285
169 void G4VMultipleScattering::BuildPhysicsTable( 286 void G4VMultipleScattering::BuildPhysicsTable(const G4ParticleDefinition& part)
170 { 287 {
171 G4bool master = emManager->IsMaster(); << 288 G4String num = part.GetParticleName();
>> 289 if(1 < verboseLevel) {
>> 290 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
>> 291 << GetProcessName()
>> 292 << " and particle " << num
>> 293 << " IsMaster= " << G4LossTableManager::Instance()->IsMaster()
>> 294 << G4endl;
>> 295 }
>> 296 G4bool master = true;
>> 297 const G4VMultipleScattering* masterProcess =
>> 298 static_cast<const G4VMultipleScattering*>(GetMasterProcess());
>> 299 if(masterProcess && masterProcess != this) { master = false; }
172 300
173 if(firstParticle == &part) { << 301 if(firstParticle == &part) {
174 emManager->BuildPhysicsTable(&part); << 302 /*
175 } << 303 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
176 const G4VMultipleScattering* ptr = this; << 304 << GetProcessName()
177 if(!master) { << 305 << " and particle " << num
178 ptr = static_cast<const G4VMultipleScatter << 306 << " IsMaster= " << G4LossTableManager::Instance()->IsMaster()
>> 307 << " " << this
>> 308 << G4endl;
>> 309 */
>> 310 emManager->BuildPhysicsTable(firstParticle);
>> 311
>> 312 if(!master) {
>> 313 // initialisation of models
>> 314 G4bool printing = true;
>> 315 numberOfModels = modelManager->NumberOfModels();
>> 316 /*
>> 317 G4cout << "### G4VMultipleScattering::SlaveBuildPhysicsTable() for "
>> 318 << GetProcessName()
>> 319 << " and particle " << num
>> 320 << " Nmod= " << numberOfModels << " " << this
>> 321 << G4endl;
>> 322 */
>> 323 for(G4int i=0; i<numberOfModels; ++i) {
>> 324 G4VMscModel* msc =
>> 325 static_cast<G4VMscModel*>(GetModelByIndex(i, printing));
>> 326 G4VMscModel* msc0=
>> 327 static_cast<G4VMscModel*>(masterProcess->GetModelByIndex(i,printing));
>> 328 msc->SetCrossSectionTable(msc0->GetCrossSectionTable(), false);
>> 329 msc->InitialiseLocal(firstParticle, msc0);
>> 330 }
>> 331 }
179 } 332 }
180 333
181 G4EmTableUtil::BuildMscProcess(this, ptr, pa << 334 // explicitly defined printout by particle name
182 numberOfModels, master); << 335 if(1 < verboseLevel ||
>> 336 (0 < verboseLevel && (num == "e-" ||
>> 337 num == "e+" || num == "mu+" ||
>> 338 num == "mu-" || num == "proton"||
>> 339 num == "pi+" || num == "pi-" ||
>> 340 num == "kaon+" || num == "kaon-" ||
>> 341 num == "alpha" || num == "anti_proton" ||
>> 342 num == "GenericIon")))
>> 343 {
>> 344 G4cout << G4endl << GetProcessName()
>> 345 << ": for " << num
>> 346 << " SubType= " << GetProcessSubType()
>> 347 << G4endl;
>> 348 PrintInfo();
>> 349 modelManager->DumpModelList(verboseLevel);
>> 350 }
>> 351
>> 352 if(1 < verboseLevel) {
>> 353 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() done for "
>> 354 << GetProcessName()
>> 355 << " and particle " << num
>> 356 << G4endl;
>> 357 }
183 } 358 }
184 359
185 //....oooOO0OOooo........oooOO0OOooo........oo 360 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
186 361
187 void G4VMultipleScattering::StreamInfo(std::os << 362 void G4VMultipleScattering::PrintInfoDefinition()
188 const G4ParticleDefinition& <<
189 { 363 {
190 G4String indent = (rst ? " " : ""); << 364 if (0 < verboseLevel) {
191 outFile << G4endl << indent << GetProcessNam << 365 G4cout << G4endl << GetProcessName()
192 if (!rst) outFile << " for " << part.GetPart << 366 << ": for " << firstParticle->GetParticleName()
193 outFile << " SubType= " << GetProcessSubTy << 367 << " SubType= " << GetProcessSubType()
194 modelManager->DumpModelList(outFile, verbose << 368 << G4endl;
>> 369 PrintInfo();
>> 370 modelManager->DumpModelList(verboseLevel);
>> 371 }
195 } 372 }
196 373
197 //....oooOO0OOooo........oooOO0OOooo........oo 374 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
198 375
199 void G4VMultipleScattering::StartTracking(G4Tr 376 void G4VMultipleScattering::StartTracking(G4Track* track)
200 { 377 {
201 G4VEnergyLossProcess* eloss = nullptr; 378 G4VEnergyLossProcess* eloss = nullptr;
202 if(track->GetParticleDefinition() != currPar 379 if(track->GetParticleDefinition() != currParticle) {
203 currParticle = track->GetParticleDefinitio 380 currParticle = track->GetParticleDefinition();
204 fIonisation = emManager->GetEnergyLossProc 381 fIonisation = emManager->GetEnergyLossProcess(currParticle);
205 eloss = fIonisation; 382 eloss = fIonisation;
206 } 383 }
207 for(G4int i=0; i<numberOfModels; ++i) { << 384 /*
208 G4VMscModel* msc = GetModelByIndex(i); << 385 G4cout << "G4VMultipleScattering::StartTracking Nmod= " << numberOfModels
209 msc->StartTracking(track); << 386 << " " << currParticle->GetParticleName()
210 if(nullptr != eloss) { << 387 << " E(MeV)= " << track->GetKineticEnergy()
211 msc->SetIonisation(eloss, currParticle); << 388 << " Ion= " << eloss << " " << fIonisation << " IsMaster= "
>> 389 << G4LossTableManager::Instance()->IsMaster()
>> 390 << G4endl;
>> 391 */
>> 392 // one model
>> 393 if(1 == numberOfModels) {
>> 394 currentModel->StartTracking(track);
>> 395 if(eloss) { currentModel->SetIonisation(fIonisation, currParticle); }
>> 396
>> 397 // many models
>> 398 } else {
>> 399 for(G4int i=0; i<numberOfModels; ++i) {
>> 400 G4VMscModel* msc = static_cast<G4VMscModel*>(GetModelByIndex(i,true));
>> 401 msc->StartTracking(track);
>> 402 if(eloss) { msc->SetIonisation(fIonisation, currParticle); }
212 } 403 }
213 } 404 }
214 } << 405 }
215 406
216 //....oooOO0OOooo........oooOO0OOooo........oo 407 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
217 408
218 G4double G4VMultipleScattering::AlongStepGetPh 409 G4double G4VMultipleScattering::AlongStepGetPhysicalInteractionLength(
219 const G4Track& tr 410 const G4Track& track,
220 G4double, 411 G4double,
221 G4double currentM 412 G4double currentMinimalStep,
222 G4double&, 413 G4double&,
223 G4GPILSelection* 414 G4GPILSelection* selection)
224 { 415 {
225 // get Step limit proposed by the process 416 // get Step limit proposed by the process
226 *selection = NotCandidateForSelection; 417 *selection = NotCandidateForSelection;
227 physStepLimit = gPathLength = tPathLength = 418 physStepLimit = gPathLength = tPathLength = currentMinimalStep;
228 419
229 G4double ekin = track.GetKineticEnergy(); 420 G4double ekin = track.GetKineticEnergy();
230 /* 421 /*
231 G4cout << "MSC::AlongStepGPIL: Ekin= " << ek 422 G4cout << "MSC::AlongStepGPIL: Ekin= " << ekin
232 << " " << currParticle->GetParticleN 423 << " " << currParticle->GetParticleName()
233 << " currMod " << currentModel 424 << " currMod " << currentModel
234 << G4endl; 425 << G4endl;
235 */ 426 */
236 // isIon flag is used only to select a model 427 // isIon flag is used only to select a model
237 if(isIon) { 428 if(isIon) {
238 ekin *= proton_mass_c2/track.GetParticleDe 429 ekin *= proton_mass_c2/track.GetParticleDefinition()->GetPDGMass();
239 } 430 }
240 const G4MaterialCutsCouple* couple = track.G <<
241 431
242 // select new model, static cast is possible << 432 // select new model
243 if(1 < numberOfModels) { 433 if(1 < numberOfModels) {
244 currentModel = << 434 currentModel = static_cast<G4VMscModel*>(
245 static_cast<G4VMscModel*>(SelectModel(ek << 435 SelectModel(ekin,track.GetMaterialCutsCouple()->GetIndex()));
246 } 436 }
247 currentModel->SetCurrentCouple(couple); <<
248 // msc is active is model is active, energy 437 // msc is active is model is active, energy above the limit,
249 // and step size is above the limit; 438 // and step size is above the limit;
250 // if it is active msc may limit the step 439 // if it is active msc may limit the step
251 if(currentModel->IsActive(ekin) && tPathLeng 440 if(currentModel->IsActive(ekin) && tPathLength > geomMin
252 && ekin >= lowestKinEnergy) { 441 && ekin >= lowestKinEnergy) {
253 isActive = true; 442 isActive = true;
254 tPathLength = 443 tPathLength =
255 currentModel->ComputeTruePathLengthLimit 444 currentModel->ComputeTruePathLengthLimit(track, gPathLength);
256 if (tPathLength < physStepLimit) { 445 if (tPathLength < physStepLimit) {
257 *selection = CandidateForSelection; 446 *selection = CandidateForSelection;
258 } 447 }
259 } else { << 448 } else { isActive = false; }
260 isActive = false; <<
261 gPathLength = DBL_MAX; <<
262 } <<
263 449
264 //if(currParticle->GetPDGMass() > GeV) 450 //if(currParticle->GetPDGMass() > GeV)
265 /* 451 /*
266 G4cout << "MSC::AlongStepGPIL: Ekin= " << ek 452 G4cout << "MSC::AlongStepGPIL: Ekin= " << ekin
267 << " " << currParticle->GetParticleN 453 << " " << currParticle->GetParticleName()
268 << " gPathLength= " << gPathLength 454 << " gPathLength= " << gPathLength
269 << " tPathLength= " << tPathLength 455 << " tPathLength= " << tPathLength
270 << " currentMinimalStep= " << current 456 << " currentMinimalStep= " << currentMinimalStep
271 << " isActive " << isActive << G4endl 457 << " isActive " << isActive << G4endl;
272 */ 458 */
273 return gPathLength; 459 return gPathLength;
274 } 460 }
275 461
276 //....oooOO0OOooo........oooOO0OOooo........oo 462 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
277 463
278 G4double 464 G4double
279 G4VMultipleScattering::PostStepGetPhysicalInte 465 G4VMultipleScattering::PostStepGetPhysicalInteractionLength(
280 const G4Track&, G4double, G4Forc 466 const G4Track&, G4double, G4ForceCondition* condition)
281 { 467 {
282 *condition = NotForced; << 468 *condition = Forced;
>> 469 //*condition = NotForced;
283 return DBL_MAX; 470 return DBL_MAX;
284 } 471 }
285 472
286 //....oooOO0OOooo........oooOO0OOooo........oo 473 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
287 474
288 G4VParticleChange* 475 G4VParticleChange*
289 G4VMultipleScattering::AlongStepDoIt(const G4T 476 G4VMultipleScattering::AlongStepDoIt(const G4Track& track, const G4Step& step)
290 { 477 {
291 fParticleChange.InitialiseMSC(track, step); << 478 fParticleChange.ProposeMomentumDirection(
292 fNewPosition = fParticleChange.GetProposedPo << 479 step.GetPostStepPoint()->GetMomentumDirection());
>> 480 fNewPosition = step.GetPostStepPoint()->GetPosition();
>> 481 fParticleChange.ProposePosition(fNewPosition);
293 fPositionChanged = false; 482 fPositionChanged = false;
294 483
295 G4double geomLength = step.GetStepLength(); 484 G4double geomLength = step.GetStepLength();
296 485
297 // very small step - no msc 486 // very small step - no msc
298 if(!isActive) { 487 if(!isActive) {
299 tPathLength = geomLength; 488 tPathLength = geomLength;
300 489
301 // sample msc 490 // sample msc
302 } else { 491 } else {
303 G4double range = 492 G4double range =
304 currentModel->GetRange(currParticle,trac 493 currentModel->GetRange(currParticle,track.GetKineticEnergy(),
305 track.GetMaterial 494 track.GetMaterialCutsCouple());
306 495
307 tPathLength = currentModel->ComputeTrueSte 496 tPathLength = currentModel->ComputeTrueStepLength(geomLength);
308 497
>> 498 // protection against wrong t->g->t conversion
309 /* 499 /*
310 if(currParticle->GetPDGMass() > 0.9*GeV) 500 if(currParticle->GetPDGMass() > 0.9*GeV)
311 G4cout << "G4VMsc::AlongStepDoIt: GeomLeng 501 G4cout << "G4VMsc::AlongStepDoIt: GeomLength= "
312 << geomLength 502 << geomLength
313 << " tPathLength= " << tPathLength 503 << " tPathLength= " << tPathLength
314 << " physStepLimit= " << physStepLi 504 << " physStepLimit= " << physStepLimit
315 << " dr= " << range - tPathLength 505 << " dr= " << range - tPathLength
316 << " ekin= " << track.GetKineticEne 506 << " ekin= " << track.GetKineticEnergy() << G4endl;
317 */ 507 */
318 // protection against wrong t->g->t conver <<
319 tPathLength = std::min(tPathLength, physSt 508 tPathLength = std::min(tPathLength, physStepLimit);
320 509
321 // do not sample scattering at the last or 510 // do not sample scattering at the last or at a small step
322 if(tPathLength < range && tPathLength > ge 511 if(tPathLength < range && tPathLength > geomMin) {
323 512
324 static const G4double minSafety = 1.20*C <<
325 static const G4double sFact = 0.99; <<
326 <<
327 G4ThreeVector displacement = currentMode 513 G4ThreeVector displacement = currentModel->SampleScattering(
328 step.GetPostStepPoint()->GetMomentumDi 514 step.GetPostStepPoint()->GetMomentumDirection(),minSafety);
329 515
330 G4double r2 = displacement.mag2(); 516 G4double r2 = displacement.mag2();
331 //G4cout << " R= " << sqrt(r2) << " R 517 //G4cout << " R= " << sqrt(r2) << " Rmin= " << sqrt(minDisplacement2)
332 // << " flag= " << fDispBeyondSafety 518 // << " flag= " << fDispBeyondSafety << G4endl;
333 if(r2 > minDisplacement2) { 519 if(r2 > minDisplacement2) {
334 520
335 fPositionChanged = true; 521 fPositionChanged = true;
336 G4double dispR = std::sqrt(r2); << 522 const G4double sFact = 0.99;
337 G4double postSafety = 523 G4double postSafety =
338 sFact*safetyHelper->ComputeSafety(fN << 524 sFact*(step.GetPreStepPoint()->GetSafety() - geomLength);
339 //G4cout<<" R= "<< dispR<<" postSaf << 525 //G4cout<<" R= "<<sqrt(r2)<<" postSafety= "<<postSafety<<G4endl;
340 526
341 // far away from geometry boundary 527 // far away from geometry boundary
342 if(postSafety > 0.0 && dispR <= postSa << 528 if(postSafety > 0.0 && r2 <= postSafety*postSafety) {
343 fNewPosition += displacement; 529 fNewPosition += displacement;
344 530
345 //near the boundary << 531 //near the boundary
346 } else { 532 } else {
>> 533 G4double dispR = std::sqrt(r2);
>> 534 postSafety =
>> 535 sFact*safetyHelper->ComputeSafety(fNewPosition, dispR);
>> 536
347 // displaced point is definitely wit 537 // displaced point is definitely within the volume
348 //G4cout<<" R= "<<dispR<<" postSa 538 //G4cout<<" R= "<<dispR<<" postSafety= "<<postSafety<<G4endl;
349 if(dispR < postSafety) { 539 if(dispR < postSafety) {
350 fNewPosition += displacement; 540 fNewPosition += displacement;
351 541
352 // reduced displacement << 542 // optional extra mechanism is applied only if a particle
353 } else if(postSafety > geomMin) { << 543 // is stopped by the boundary
354 fNewPosition += displacement*(post << 544 } else if(fDispBeyondSafety && 0.0 == postSafety) {
>> 545 fNewPosition += displacement;
>> 546 G4double maxshift =
>> 547 std::min(2.0*dispR, geomLength*(physStepLimit/tPathLength - 1.0));
>> 548 G4double dist = 0.0;
>> 549 G4double safety = postSafety + dispR;
>> 550 fNewDirection = *(fParticleChange.GetMomentumDirection());
>> 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 // and the shift is not large
>> 560 if(safetyHelper->RecheckDistanceToCurrentBoundary(fNewPosition,
>> 561 fNewDirection, maxshift, &dist, &safety)
>> 562 && std::abs(dist) < maxshift) {
>> 563 /*
>> 564 G4cout << "##MSC after Recheck dist= " << dist
>> 565 << " postsafety= " << postSafety
>> 566 << " t= " << tPathLength
>> 567 << " g= " << geomLength
>> 568 << " p= " << physStepLimit
>> 569 << G4endl;
>> 570 */
>> 571 // shift is positive
>> 572 if(dist >= 0.0) {
>> 573 tPathLength *= (1.0 + dist/geomLength);
>> 574 fNewPosition += dist*fNewDirection;
>> 575
>> 576 // shift is negative cannot be larger than geomLength
>> 577 } else {
>> 578 maxshift = std::min(maxshift, geomLength);
>> 579 if(0.0 < maxshift + dist) {
>> 580 G4ThreeVector postpoint = step.GetPostStepPoint()->GetPosition();
>> 581 G4ThreeVector point = fNewPosition + dist*fNewDirection;
>> 582 G4double R2 = (postpoint - point).mag2();
>> 583 G4double newdist = dist;
>> 584 // check not more than 10 extra boundaries
>> 585 for(G4int i=0; i<10; ++i) {
>> 586 dist = 0.0;
>> 587 if(safetyHelper->RecheckDistanceToCurrentBoundary(
>> 588 point, fNewDirection, maxshift, &dist, &safety)
>> 589 && std::abs(newdist + dist) < maxshift) {
>> 590 point += dist*fNewDirection;
>> 591 G4double R2new = (postpoint - point).mag2();
>> 592 //G4cout << "Backward i= " << i << " dist= " << dist
>> 593 // << " R2= " << R2new << G4endl;
>> 594 if(dist >= 0.0 || R2new > R2) { break; }
>> 595 R2 = R2new;
>> 596 fNewPosition = point;
>> 597 newdist += dist;
>> 598 } else {
>> 599 break;
>> 600 }
>> 601 }
>> 602 tPathLength *= (1.0 + newdist/geomLength);
>> 603 // shift on boundary is not possible for negative disp
>> 604 } else {
>> 605 fNewPosition += displacement*(postSafety/dispR - 1.0);
>> 606 }
>> 607 }
>> 608 // shift on boundary is not possible for any disp
>> 609 } else {
>> 610 fNewPosition += displacement*(postSafety/dispR - 1.0);
>> 611 }
>> 612 // reduced displacement
>> 613 } else if(postSafety > geomMin) {
>> 614 fNewPosition += displacement*(postSafety/dispR);
355 615
356 // very small postSafety 616 // very small postSafety
357 } else { 617 } else {
358 fPositionChanged = false; 618 fPositionChanged = false;
359 } 619 }
360 } 620 }
361 if(fPositionChanged) { << 621 //safetyHelper->ReLocateWithinVolume(fNewPosition);
362 safetyHelper->ReLocateWithinVolume(f <<
363 fParticleChange.ProposePosition(fNew <<
364 } <<
365 } 622 }
366 } 623 }
367 } 624 }
368 fParticleChange.ProposeTrueStepLength(tPathL 625 fParticleChange.ProposeTrueStepLength(tPathLength);
>> 626 //fParticleChange.ProposePosition(fNewPosition);
>> 627 return &fParticleChange;
>> 628 }
>> 629
>> 630 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 631
>> 632 G4VParticleChange*
>> 633 G4VMultipleScattering::PostStepDoIt(const G4Track& track, const G4Step&)
>> 634 {
>> 635 fParticleChange.Initialize(track);
>> 636
>> 637 if(fPositionChanged) {
>> 638 safetyHelper->ReLocateWithinVolume(fNewPosition);
>> 639 fParticleChange.ProposePosition(fNewPosition);
>> 640 }
>> 641
369 return &fParticleChange; 642 return &fParticleChange;
370 } 643 }
371 644
372 //....oooOO0OOooo........oooOO0OOooo........oo 645 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
373 646
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