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25 // 25 //
>> 26 // $Id$
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, size_t)
130 { 155 {
131 if(nullptr == ptr) { return; } << 156 for(auto & msc : mscModels) { if(msc == p) { return; } }
132 if(!mscModels.empty()) { << 157 mscModels.push_back(p);
133 for(auto & msc : mscModels) { if(msc == pt << 158 }
134 } << 159
135 mscModels.push_back(ptr); << 160 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 161
>> 162 G4VMscModel* G4VMultipleScattering::EmModel(size_t index) const
>> 163 {
>> 164 return (index < mscModels.size()) ? mscModels[index] : nullptr;
136 } 165 }
137 166
138 //....oooOO0OOooo........oooOO0OOooo........oo 167 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
139 168
140 void 169 void
141 G4VMultipleScattering::PreparePhysicsTable(con 170 G4VMultipleScattering::PreparePhysicsTable(const G4ParticleDefinition& part)
142 { 171 {
>> 172 if(1 < verboseLevel) {
>> 173 G4cout << "### G4VMultipleScattering::PrepearPhysicsTable() for "
>> 174 << GetProcessName()
>> 175 << " and particle " << part.GetParticleName()
>> 176 << G4endl;
>> 177 }
143 G4bool master = emManager->IsMaster(); 178 G4bool master = emManager->IsMaster();
144 if (nullptr == firstParticle) { firstParticl <<
145 179
146 emManager->PreparePhysicsTable(&part, this); << 180 if(!firstParticle) { firstParticle = ∂ }
>> 181 if(part.GetParticleType() == "nucleus") {
>> 182 stepLimit = fMinimal;
>> 183 latDisplacement = false;
>> 184 facrange = 0.2;
>> 185 G4String pname = part.GetParticleName();
>> 186 if(pname != "deuteron" && pname != "triton" &&
>> 187 pname != "alpha+" && pname != "helium" &&
>> 188 pname != "alpha" && pname != "He3" &&
>> 189 pname != "hydrogen") {
>> 190
>> 191 const G4ParticleDefinition* theGenericIon =
>> 192 G4ParticleTable::GetParticleTable()->FindParticle("GenericIon");
>> 193 if(&part == theGenericIon) { isIon = true; }
>> 194
>> 195 if(theGenericIon && firstParticle != theGenericIon) {
>> 196 G4ProcessManager* pm = theGenericIon->GetProcessManager();
>> 197 G4ProcessVector* v = pm->GetAlongStepProcessVector();
>> 198 size_t n = v->size();
>> 199 for(size_t j=0; j<n; ++j) {
>> 200 if((*v)[j] == this) {
>> 201 firstParticle = theGenericIon;
>> 202 isIon = true;
>> 203 break;
>> 204 }
>> 205 }
>> 206 }
>> 207 }
>> 208 }
>> 209
>> 210 emManager->PreparePhysicsTable(&part, this, master);
147 currParticle = nullptr; 211 currParticle = nullptr;
148 212
>> 213 if(1 < verboseLevel) {
>> 214 G4cout << "### G4VMultipleScattering::PrepearPhysicsTable() for "
>> 215 << GetProcessName()
>> 216 << " and particle " << part.GetParticleName()
>> 217 << " local particle " << firstParticle->GetParticleName()
>> 218 << " isIon: " << isIon << " isMaster: " << master
>> 219 << G4endl;
>> 220 }
>> 221
149 if(firstParticle == &part) { 222 if(firstParticle == &part) {
150 baseMat = emManager->GetTableBuilder()->Ge <<
151 G4EmTableUtil::PrepareMscProcess(this, par <<
152 stepLimit, facrange, <<
153 latDisplacement, master, <<
154 isIon, baseMat); <<
155 223
>> 224 // initialise process
>> 225 InitialiseProcess(firstParticle);
>> 226
>> 227 // heavy particles and not ions
>> 228 if(!isIon) {
>> 229 if(part.GetPDGMass() > MeV) {
>> 230 stepLimit = theParameters->MscMuHadStepLimitType();
>> 231 facrange = theParameters->MscMuHadRangeFactor();
>> 232 latDisplacement = theParameters->MuHadLateralDisplacement();
>> 233 } else {
>> 234 stepLimit = theParameters->MscStepLimitType();
>> 235 facrange = theParameters->MscRangeFactor();
>> 236 latDisplacement = theParameters->LateralDisplacement();
>> 237 }
>> 238 if(latDisplacement) {
>> 239 fDispBeyondSafety = theParameters->LatDisplacementBeyondSafety();
>> 240 }
>> 241 }
>> 242 if(master) { SetVerboseLevel(theParameters->Verbose()); }
>> 243 else { SetVerboseLevel(theParameters->WorkerVerbose()); }
>> 244
>> 245 // initialisation of models
156 numberOfModels = modelManager->NumberOfMod 246 numberOfModels = modelManager->NumberOfModels();
157 currentModel = GetModelByIndex(0); << 247 /*
>> 248 G4cout << "### G4VMultipleScattering::PreparePhysicsTable() for "
>> 249 << GetProcessName()
>> 250 << " and particle " << part.GetParticleName()
>> 251 << " Nmod= " << numberOfModels << " " << this
>> 252 << G4endl;
>> 253 */
>> 254 for(G4int i=0; i<numberOfModels; ++i) {
>> 255 G4VMscModel* msc = static_cast<G4VMscModel*>(GetModelByIndex(i));
>> 256 if(!msc) { continue; }
>> 257 msc->SetIonisation(nullptr, firstParticle);
>> 258 msc->SetMasterThread(master);
>> 259 currentModel = msc;
>> 260 msc->SetStepLimitType(stepLimit);
>> 261 msc->SetLateralDisplasmentFlag(latDisplacement);
>> 262 msc->SetSkin(theParameters->MscSkin());
>> 263 msc->SetRangeFactor(facrange);
>> 264 msc->SetGeomFactor(theParameters->MscGeomFactor());
>> 265 msc->SetPolarAngleLimit(theParameters->MscThetaLimit());
>> 266 G4double emax =
>> 267 std::min(msc->HighEnergyLimit(),theParameters->MaxKinEnergy());
>> 268 msc->SetHighEnergyLimit(emax);
>> 269 }
158 270
159 if (nullptr == safetyHelper) { << 271 modelManager->Initialise(firstParticle, G4Electron::Electron(),
>> 272 10.0, verboseLevel);
>> 273
>> 274 if(!safetyHelper) {
160 safetyHelper = G4TransportationManager:: 275 safetyHelper = G4TransportationManager::GetTransportationManager()
161 ->GetSafetyHelper(); << 276 ->GetSafetyHelper();
162 safetyHelper->InitialiseHelper(); 277 safetyHelper->InitialiseHelper();
163 } 278 }
164 } 279 }
165 } 280 }
166 281
167 //....oooOO0OOooo........oooOO0OOooo........oo 282 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
168 283
169 void G4VMultipleScattering::BuildPhysicsTable( 284 void G4VMultipleScattering::BuildPhysicsTable(const G4ParticleDefinition& part)
170 { 285 {
>> 286 G4String num = part.GetParticleName();
171 G4bool master = emManager->IsMaster(); 287 G4bool master = emManager->IsMaster();
172 << 288 if(1 < verboseLevel) {
173 if(firstParticle == &part) { << 289 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
174 emManager->BuildPhysicsTable(&part); << 290 << GetProcessName()
>> 291 << " and particle " << num << " isIon: " << isIon
>> 292 << " IsMaster: " << master << G4endl;
175 } 293 }
176 const G4VMultipleScattering* ptr = this; << 294 const G4VMultipleScattering* masterProcess =
177 if(!master) { << 295 static_cast<const G4VMultipleScattering*>(GetMasterProcess());
178 ptr = static_cast<const G4VMultipleScatter << 296
>> 297 if(firstParticle == &part) {
>> 298 /*
>> 299 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
>> 300 << GetProcessName()
>> 301 << " and particle " << num
>> 302 << " IsMaster= " << G4LossTableManager::Instance()->IsMaster()
>> 303 << " " << this
>> 304 << G4endl;
>> 305 */
>> 306 emManager->BuildPhysicsTable(firstParticle);
>> 307
>> 308 if(!master) {
>> 309 // initialisation of models
>> 310 /*
>> 311 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for "
>> 312 << GetProcessName()
>> 313 << " and particle " << num
>> 314 << " Nmod= " << numberOfModels << " " << this
>> 315 << G4endl;
>> 316 */
>> 317 for(G4int i=0; i<numberOfModels; ++i) {
>> 318 G4VMscModel* msc = static_cast<G4VMscModel*>(GetModelByIndex(i));
>> 319 if(!msc) { continue; }
>> 320 G4VMscModel* msc0=
>> 321 static_cast<G4VMscModel*>(masterProcess->GetModelByIndex(i));
>> 322 msc->SetCrossSectionTable(msc0->GetCrossSectionTable(), false);
>> 323 msc->InitialiseLocal(firstParticle, msc0);
>> 324 }
>> 325 }
179 } 326 }
180 327
181 G4EmTableUtil::BuildMscProcess(this, ptr, pa << 328 // explicitly defined printout by particle name
182 numberOfModels, master); << 329 if(1 < verboseLevel ||
>> 330 (0 < verboseLevel && (num == "e-" ||
>> 331 num == "e+" || num == "mu+" ||
>> 332 num == "mu-" || num == "proton"||
>> 333 num == "pi+" || num == "pi-" ||
>> 334 num == "kaon+" || num == "kaon-" ||
>> 335 num == "alpha" || num == "anti_proton" ||
>> 336 num == "GenericIon" || num == "alpha+" ||
>> 337 num == "alpha++" )))
>> 338 {
>> 339 StreamInfo(G4cout, part);
>> 340 }
>> 341
>> 342 if(1 < verboseLevel) {
>> 343 G4cout << "### G4VMultipleScattering::BuildPhysicsTable() done for "
>> 344 << GetProcessName()
>> 345 << " and particle " << num
>> 346 << G4endl;
>> 347 }
183 } 348 }
184 349
185 //....oooOO0OOooo........oooOO0OOooo........oo 350 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
186 351
187 void G4VMultipleScattering::StreamInfo(std::os 352 void G4VMultipleScattering::StreamInfo(std::ostream& outFile,
188 const G4ParticleDefinition& << 353 const G4ParticleDefinition& part, G4String endOfLine) const
189 { 354 {
190 G4String indent = (rst ? " " : ""); << 355 outFile << endOfLine << GetProcessName() << ": ";
191 outFile << G4endl << indent << GetProcessNam << 356 if (endOfLine != G4String("<br>\n")) {
192 if (!rst) outFile << " for " << part.GetPart << 357 outFile << " for " << part.GetParticleName();
193 outFile << " SubType= " << GetProcessSubTy << 358 }
194 modelManager->DumpModelList(outFile, verbose << 359 outFile << " SubType= " << GetProcessSubType() << endOfLine;
>> 360 StreamProcessInfo(outFile, endOfLine);
>> 361 modelManager->DumpModelList(outFile, verboseLevel, endOfLine);
195 } 362 }
196 363
197 //....oooOO0OOooo........oooOO0OOooo........oo 364 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
198 365
199 void G4VMultipleScattering::StartTracking(G4Tr 366 void G4VMultipleScattering::StartTracking(G4Track* track)
200 { 367 {
201 G4VEnergyLossProcess* eloss = nullptr; 368 G4VEnergyLossProcess* eloss = nullptr;
202 if(track->GetParticleDefinition() != currPar 369 if(track->GetParticleDefinition() != currParticle) {
203 currParticle = track->GetParticleDefinitio 370 currParticle = track->GetParticleDefinition();
204 fIonisation = emManager->GetEnergyLossProc 371 fIonisation = emManager->GetEnergyLossProcess(currParticle);
205 eloss = fIonisation; 372 eloss = fIonisation;
206 } 373 }
>> 374 /*
>> 375 G4cout << "G4VMultipleScattering::StartTracking Nmod= " << numberOfModels
>> 376 << " " << currParticle->GetParticleName()
>> 377 << " E(MeV)= " << track->GetKineticEnergy()
>> 378 << " Ion= " << eloss << " " << fIonisation << " IsMaster= "
>> 379 << G4LossTableManager::Instance()->IsMaster()
>> 380 << G4endl;
>> 381 */
207 for(G4int i=0; i<numberOfModels; ++i) { 382 for(G4int i=0; i<numberOfModels; ++i) {
208 G4VMscModel* msc = GetModelByIndex(i); << 383 /*
>> 384 G4cout << "Next model " << i << " " << msc
>> 385 << " Emin= " << msc->LowEnergyLimit()
>> 386 << " Emax= " << msc->HighEnergyLimit()
>> 387 << " Eact= " << msc->LowEnergyActivationLimit() << G4endl;
>> 388 */
>> 389 G4VEmModel* msc = GetModelByIndex(i);
209 msc->StartTracking(track); 390 msc->StartTracking(track);
210 if(nullptr != eloss) { << 391 if(eloss) {
211 msc->SetIonisation(eloss, currParticle); << 392 G4VMscModel* mscmod = static_cast<G4VMscModel*>(msc);
>> 393 if(mscmod) { mscmod->SetIonisation(fIonisation, currParticle); }
212 } 394 }
213 } 395 }
214 } << 396 }
215 397
216 //....oooOO0OOooo........oooOO0OOooo........oo 398 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
217 399
218 G4double G4VMultipleScattering::AlongStepGetPh 400 G4double G4VMultipleScattering::AlongStepGetPhysicalInteractionLength(
219 const G4Track& tr 401 const G4Track& track,
220 G4double, 402 G4double,
221 G4double currentM 403 G4double currentMinimalStep,
222 G4double&, 404 G4double&,
223 G4GPILSelection* 405 G4GPILSelection* selection)
224 { 406 {
225 // get Step limit proposed by the process 407 // get Step limit proposed by the process
226 *selection = NotCandidateForSelection; 408 *selection = NotCandidateForSelection;
227 physStepLimit = gPathLength = tPathLength = 409 physStepLimit = gPathLength = tPathLength = currentMinimalStep;
228 410
229 G4double ekin = track.GetKineticEnergy(); 411 G4double ekin = track.GetKineticEnergy();
230 /* 412 /*
231 G4cout << "MSC::AlongStepGPIL: Ekin= " << ek 413 G4cout << "MSC::AlongStepGPIL: Ekin= " << ekin
232 << " " << currParticle->GetParticleN 414 << " " << currParticle->GetParticleName()
233 << " currMod " << currentModel 415 << " currMod " << currentModel
234 << G4endl; 416 << G4endl;
235 */ 417 */
236 // isIon flag is used only to select a model 418 // isIon flag is used only to select a model
237 if(isIon) { 419 if(isIon) {
238 ekin *= proton_mass_c2/track.GetParticleDe 420 ekin *= proton_mass_c2/track.GetParticleDefinition()->GetPDGMass();
239 } 421 }
240 const G4MaterialCutsCouple* couple = track.G <<
241 422
242 // select new model, static cast is possible << 423 // select new model
243 if(1 < numberOfModels) { 424 if(1 < numberOfModels) {
244 currentModel = << 425 currentModel = static_cast<G4VMscModel*>(
245 static_cast<G4VMscModel*>(SelectModel(ek << 426 SelectModel(ekin,track.GetMaterialCutsCouple()->GetIndex()));
246 } 427 }
247 currentModel->SetCurrentCouple(couple); <<
248 // msc is active is model is active, energy 428 // msc is active is model is active, energy above the limit,
249 // and step size is above the limit; 429 // and step size is above the limit;
250 // if it is active msc may limit the step 430 // if it is active msc may limit the step
251 if(currentModel->IsActive(ekin) && tPathLeng 431 if(currentModel->IsActive(ekin) && tPathLength > geomMin
252 && ekin >= lowestKinEnergy) { 432 && ekin >= lowestKinEnergy) {
253 isActive = true; 433 isActive = true;
254 tPathLength = 434 tPathLength =
255 currentModel->ComputeTruePathLengthLimit 435 currentModel->ComputeTruePathLengthLimit(track, gPathLength);
256 if (tPathLength < physStepLimit) { 436 if (tPathLength < physStepLimit) {
257 *selection = CandidateForSelection; 437 *selection = CandidateForSelection;
258 } 438 }
259 } else { << 439 } else { isActive = false; }
260 isActive = false; <<
261 gPathLength = DBL_MAX; <<
262 } <<
263 440
264 //if(currParticle->GetPDGMass() > GeV) 441 //if(currParticle->GetPDGMass() > GeV)
265 /* 442 /*
266 G4cout << "MSC::AlongStepGPIL: Ekin= " << ek 443 G4cout << "MSC::AlongStepGPIL: Ekin= " << ekin
267 << " " << currParticle->GetParticleN 444 << " " << currParticle->GetParticleName()
268 << " gPathLength= " << gPathLength 445 << " gPathLength= " << gPathLength
269 << " tPathLength= " << tPathLength 446 << " tPathLength= " << tPathLength
270 << " currentMinimalStep= " << current 447 << " currentMinimalStep= " << currentMinimalStep
271 << " isActive " << isActive << G4endl 448 << " isActive " << isActive << G4endl;
272 */ 449 */
273 return gPathLength; 450 return gPathLength;
274 } 451 }
275 452
276 //....oooOO0OOooo........oooOO0OOooo........oo 453 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
277 454
278 G4double 455 G4double
279 G4VMultipleScattering::PostStepGetPhysicalInte 456 G4VMultipleScattering::PostStepGetPhysicalInteractionLength(
280 const G4Track&, G4double, G4Forc 457 const G4Track&, G4double, G4ForceCondition* condition)
281 { 458 {
282 *condition = NotForced; 459 *condition = NotForced;
283 return DBL_MAX; 460 return DBL_MAX;
284 } 461 }
285 462
286 //....oooOO0OOooo........oooOO0OOooo........oo 463 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
287 464
288 G4VParticleChange* 465 G4VParticleChange*
289 G4VMultipleScattering::AlongStepDoIt(const G4T 466 G4VMultipleScattering::AlongStepDoIt(const G4Track& track, const G4Step& step)
290 { 467 {
291 fParticleChange.InitialiseMSC(track, step); << 468 fParticleChange.ProposeMomentumDirection(
292 fNewPosition = fParticleChange.GetProposedPo << 469 step.GetPostStepPoint()->GetMomentumDirection());
>> 470 fNewPosition = step.GetPostStepPoint()->GetPosition();
>> 471 fParticleChange.ProposePosition(fNewPosition);
293 fPositionChanged = false; 472 fPositionChanged = false;
294 473
295 G4double geomLength = step.GetStepLength(); 474 G4double geomLength = step.GetStepLength();
296 475
297 // very small step - no msc 476 // very small step - no msc
298 if(!isActive) { 477 if(!isActive) {
299 tPathLength = geomLength; 478 tPathLength = geomLength;
300 479
301 // sample msc 480 // sample msc
302 } else { 481 } else {
303 G4double range = 482 G4double range =
304 currentModel->GetRange(currParticle,trac 483 currentModel->GetRange(currParticle,track.GetKineticEnergy(),
305 track.GetMaterial 484 track.GetMaterialCutsCouple());
306 485
307 tPathLength = currentModel->ComputeTrueSte 486 tPathLength = currentModel->ComputeTrueStepLength(geomLength);
308 487
309 /* 488 /*
310 if(currParticle->GetPDGMass() > 0.9*GeV) 489 if(currParticle->GetPDGMass() > 0.9*GeV)
311 G4cout << "G4VMsc::AlongStepDoIt: GeomLeng 490 G4cout << "G4VMsc::AlongStepDoIt: GeomLength= "
312 << geomLength 491 << geomLength
313 << " tPathLength= " << tPathLength 492 << " tPathLength= " << tPathLength
314 << " physStepLimit= " << physStepLi 493 << " physStepLimit= " << physStepLimit
315 << " dr= " << range - tPathLength 494 << " dr= " << range - tPathLength
316 << " ekin= " << track.GetKineticEne 495 << " ekin= " << track.GetKineticEnergy() << G4endl;
317 */ 496 */
318 // protection against wrong t->g->t conver 497 // protection against wrong t->g->t conversion
319 tPathLength = std::min(tPathLength, physSt 498 tPathLength = std::min(tPathLength, physStepLimit);
320 499
321 // do not sample scattering at the last or 500 // do not sample scattering at the last or at a small step
322 if(tPathLength < range && tPathLength > ge 501 if(tPathLength < range && tPathLength > geomMin) {
323 502
324 static const G4double minSafety = 1.20*C 503 static const G4double minSafety = 1.20*CLHEP::nm;
325 static const G4double sFact = 0.99; 504 static const G4double sFact = 0.99;
326 505
327 G4ThreeVector displacement = currentMode 506 G4ThreeVector displacement = currentModel->SampleScattering(
328 step.GetPostStepPoint()->GetMomentumDi 507 step.GetPostStepPoint()->GetMomentumDirection(),minSafety);
329 508
330 G4double r2 = displacement.mag2(); 509 G4double r2 = displacement.mag2();
331 //G4cout << " R= " << sqrt(r2) << " R 510 //G4cout << " R= " << sqrt(r2) << " Rmin= " << sqrt(minDisplacement2)
332 // << " flag= " << fDispBeyondSafety 511 // << " flag= " << fDispBeyondSafety << G4endl;
333 if(r2 > minDisplacement2) { 512 if(r2 > minDisplacement2) {
334 513
335 fPositionChanged = true; 514 fPositionChanged = true;
336 G4double dispR = std::sqrt(r2); << 515 G4double dispR = std::sqrt(r2);
337 G4double postSafety = 516 G4double postSafety =
338 sFact*safetyHelper->ComputeSafety(fN << 517 sFact*safetyHelper->ComputeSafety(fNewPosition, dispR);
339 //G4cout<<" R= "<< dispR<<" postSaf 518 //G4cout<<" R= "<< dispR<<" postSafety= "<<postSafety<<G4endl;
340 519
341 // far away from geometry boundary 520 // far away from geometry boundary
342 if(postSafety > 0.0 && dispR <= postSa 521 if(postSafety > 0.0 && dispR <= postSafety) {
343 fNewPosition += displacement; 522 fNewPosition += displacement;
344 523
345 //near the boundary << 524 //near the boundary
346 } else { 525 } else {
347 // displaced point is definitely wit 526 // displaced point is definitely within the volume
348 //G4cout<<" R= "<<dispR<<" postSa 527 //G4cout<<" R= "<<dispR<<" postSafety= "<<postSafety<<G4endl;
349 if(dispR < postSafety) { 528 if(dispR < postSafety) {
350 fNewPosition += displacement; 529 fNewPosition += displacement;
351 530
352 // reduced displacement << 531 // optional extra mechanism is applied only if a particle
353 } else if(postSafety > geomMin) { << 532 // is stopped by the boundary
354 fNewPosition += displacement*(post << 533 } else if(fDispBeyondSafety && 0.0 == postSafety) {
>> 534 fNewPosition += displacement;
>> 535 G4double maxshift =
>> 536 std::min(2.0*dispR, geomLength*(physStepLimit/tPathLength - 1.0));
>> 537 G4double dist = 0.0;
>> 538 G4double safety = postSafety + dispR;
>> 539 fNewDirection = *(fParticleChange.GetMomentumDirection());
>> 540 /*
>> 541 G4cout << "##MSC before Recheck maxshift= " << maxshift
>> 542 << " postsafety= " << postSafety
>> 543 << " Ekin= " << track.GetKineticEnergy()
>> 544 << " " << track.GetDefinition()->GetParticleName()
>> 545 << G4endl;
>> 546 */
>> 547 // check if it is possible to shift to the boundary
>> 548 // and the shift is not large
>> 549 if(safetyHelper->RecheckDistanceToCurrentBoundary(fNewPosition,
>> 550 fNewDirection, maxshift, &dist, &safety)
>> 551 && std::abs(dist) < maxshift) {
>> 552 /*
>> 553 G4cout << "##MSC after Recheck dist= " << dist
>> 554 << " postsafety= " << postSafety
>> 555 << " t= " << tPathLength
>> 556 << " g= " << geomLength
>> 557 << " p= " << physStepLimit
>> 558 << G4endl;
>> 559 */
>> 560 // shift is positive
>> 561 if(dist >= 0.0) {
>> 562 tPathLength *= (1.0 + dist/geomLength);
>> 563 fNewPosition += dist*fNewDirection;
>> 564
>> 565 // shift is negative cannot be larger than geomLength
>> 566 } else {
>> 567 maxshift = std::min(maxshift, geomLength);
>> 568 if(0.0 < maxshift + dist) {
>> 569 const G4ThreeVector& postpoint = step.GetPostStepPoint()->GetPosition();
>> 570 G4ThreeVector point = fNewPosition + dist*fNewDirection;
>> 571 G4double R2 = (postpoint - point).mag2();
>> 572 G4double newdist = dist;
>> 573 // check not more than 10 extra boundaries
>> 574 for(G4int i=0; i<10; ++i) {
>> 575 dist = 0.0;
>> 576 if(safetyHelper->RecheckDistanceToCurrentBoundary(
>> 577 point, fNewDirection, maxshift, &dist, &safety)
>> 578 && std::abs(newdist + dist) < maxshift) {
>> 579 point += dist*fNewDirection;
>> 580 G4double R2new = (postpoint - point).mag2();
>> 581 //G4cout << "Backward i= " << i << " dist= " << dist
>> 582 // << " R2= " << R2new << G4endl;
>> 583 if(dist >= 0.0 || R2new > R2) { break; }
>> 584 R2 = R2new;
>> 585 fNewPosition = point;
>> 586 newdist += dist;
>> 587 } else {
>> 588 break;
>> 589 }
>> 590 }
>> 591 tPathLength *= (1.0 + newdist/geomLength);
>> 592 // shift on boundary is not possible for negative disp
>> 593 } else {
>> 594 fNewPosition += displacement*(postSafety/dispR - 1.0);
>> 595 }
>> 596 }
>> 597 // shift on boundary is not possible for any disp
>> 598 } else {
>> 599 fNewPosition += displacement*(postSafety/dispR - 1.0);
>> 600 }
>> 601 // reduced displacement
>> 602 } else if(postSafety > geomMin) {
>> 603 fNewPosition += displacement*(postSafety/dispR);
355 604
356 // very small postSafety 605 // very small postSafety
357 } else { 606 } else {
358 fPositionChanged = false; 607 fPositionChanged = false;
359 } 608 }
360 } 609 }
361 if(fPositionChanged) { << 610 if(fPositionChanged) {
362 safetyHelper->ReLocateWithinVolume(f << 611 safetyHelper->ReLocateWithinVolume(fNewPosition);
363 fParticleChange.ProposePosition(fNew << 612 fParticleChange.ProposePosition(fNewPosition);
364 } << 613 }
365 } 614 }
366 } 615 }
367 } 616 }
368 fParticleChange.ProposeTrueStepLength(tPathL 617 fParticleChange.ProposeTrueStepLength(tPathLength);
369 return &fParticleChange; 618 return &fParticleChange;
370 } 619 }
371 620
372 //....oooOO0OOooo........oooOO0OOooo........oo 621 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
373 622
>> 623 G4VParticleChange*
>> 624 G4VMultipleScattering::PostStepDoIt(const G4Track& track, const G4Step&)
>> 625 {
>> 626 fParticleChange.Initialize(track);
>> 627 return &fParticleChange;
>> 628 }
>> 629
>> 630 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 631
374 G4double G4VMultipleScattering::GetContinuousS 632 G4double G4VMultipleScattering::GetContinuousStepLimit(
375 const G 633 const G4Track& track,
376 G4doubl 634 G4double previousStepSize,
377 G4doubl 635 G4double currentMinimalStep,
378 G4doubl 636 G4double& currentSafety)
379 { 637 {
380 G4GPILSelection selection = NotCandidateForS 638 G4GPILSelection selection = NotCandidateForSelection;
381 G4double x = AlongStepGetPhysicalInteraction 639 G4double x = AlongStepGetPhysicalInteractionLength(track,previousStepSize,
382 640 currentMinimalStep,
383 641 currentSafety,
384 642 &selection);
385 return x; 643 return x;
386 } 644 }
387 645
388 //....oooOO0OOooo........oooOO0OOooo........oo 646 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
389 647
390 G4double G4VMultipleScattering::ContinuousStep 648 G4double G4VMultipleScattering::ContinuousStepLimit(
391 const G 649 const G4Track& track,
392 G4doubl 650 G4double previousStepSize,
393 G4doubl 651 G4double currentMinimalStep,
394 G4doubl 652 G4double& currentSafety)
395 { 653 {
396 return GetContinuousStepLimit(track,previous 654 return GetContinuousStepLimit(track,previousStepSize,currentMinimalStep,
397 currentSafety) 655 currentSafety);
398 } 656 }
399 657
400 //....oooOO0OOooo........oooOO0OOooo........oo 658 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
401 659
402 G4double G4VMultipleScattering::GetMeanFreePat 660 G4double G4VMultipleScattering::GetMeanFreePath(
403 const G4Track&, G4double, G4Forc 661 const G4Track&, G4double, G4ForceCondition* condition)
404 { 662 {
405 *condition = Forced; 663 *condition = Forced;
406 return DBL_MAX; 664 return DBL_MAX;
407 } 665 }
408 666
409 //....oooOO0OOooo........oooOO0OOooo........oo 667 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
410 668
411 G4bool 669 G4bool
412 G4VMultipleScattering::StorePhysicsTable(const 670 G4VMultipleScattering::StorePhysicsTable(const G4ParticleDefinition* part,
413 const 671 const G4String& directory,
414 G4boo 672 G4bool ascii)
415 { 673 {
416 G4bool yes = true; 674 G4bool yes = true;
417 if(part != firstParticle || !emManager->IsMa << 675 if(part != firstParticle) { return yes; }
418 << 676 const G4VMultipleScattering* masterProcess =
419 return G4EmTableUtil::StoreMscTable(this, pa << 677 static_cast<const G4VMultipleScattering*>(GetMasterProcess());
420 numberOfModels, verboseLevel, << 678 if(masterProcess && masterProcess != this) { return yes; }
421 ascii); << 679
>> 680 G4int nmod = modelManager->NumberOfModels();
>> 681 static const G4String ss[4] = {"1","2","3","4"};
>> 682 for(G4int i=0; i<nmod; ++i) {
>> 683 G4VEmModel* msc = modelManager->GetModel(i);
>> 684 yes = true;
>> 685 G4PhysicsTable* table = msc->GetCrossSectionTable();
>> 686 if (table) {
>> 687 G4int j = std::min(i,3);
>> 688 G4String name =
>> 689 GetPhysicsTableFileName(part,directory,"LambdaMod"+ss[j],ascii);
>> 690 yes = table->StorePhysicsTable(name,ascii);
>> 691
>> 692 if ( yes ) {
>> 693 if ( verboseLevel>0 ) {
>> 694 G4cout << "Physics table are stored for "
>> 695 << part->GetParticleName()
>> 696 << " and process " << GetProcessName()
>> 697 << " with a name <" << name << "> " << G4endl;
>> 698 }
>> 699 } else {
>> 700 G4cout << "Fail to store Physics Table for "
>> 701 << part->GetParticleName()
>> 702 << " and process " << GetProcessName()
>> 703 << " in the directory <" << directory
>> 704 << "> " << G4endl;
>> 705 }
>> 706 }
>> 707 }
>> 708 return yes;
422 } 709 }
423 710
424 //....oooOO0OOooo........oooOO0OOooo........oo 711 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
425 712
426 G4bool 713 G4bool
427 G4VMultipleScattering::RetrievePhysicsTable(co 714 G4VMultipleScattering::RetrievePhysicsTable(const G4ParticleDefinition*,
428 co 715 const G4String&,
429 G4 716 G4bool)
430 { 717 {
431 return true; 718 return true;
432 } 719 }
433 720
434 //....oooOO0OOooo........oooOO0OOooo........oo 721 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
435 722
>> 723 void G4VMultipleScattering::SetIonisation(G4VEnergyLossProcess* p)
>> 724 {
>> 725 for(G4int i=0; i<numberOfModels; ++i) {
>> 726 G4VMscModel* msc = static_cast<G4VMscModel*>(GetModelByIndex(i, true));
>> 727 if(msc) { msc->SetIonisation(p, firstParticle); }
>> 728 }
>> 729 }
>> 730
>> 731 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 732
436 void G4VMultipleScattering::ProcessDescription 733 void G4VMultipleScattering::ProcessDescription(std::ostream& outFile) const
437 { 734 {
438 if(nullptr != firstParticle) { << 735 if(firstParticle) {
439 StreamInfo(outFile, *firstParticle, true); << 736 StreamInfo(outFile, *firstParticle, G4String("<br>\n"));
440 } 737 }
441 } 738 }
442 739
443 //....oooOO0OOooo........oooOO0OOooo........oo 740 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
444 741
445 742