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