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26 // 26 //
27 // ------------------------------------------- 27 // -------------------------------------------------------------------
28 // 28 //
29 // GEANT4 Class file 29 // GEANT4 Class file
30 // 30 //
31 // 31 //
32 // File name: G4EmBiasingManager 32 // File name: G4EmBiasingManager
33 // 33 //
34 // Author: Vladimir Ivanchenko 34 // Author: Vladimir Ivanchenko
35 // 35 //
36 // Creation date: 28.07.2011 36 // Creation date: 28.07.2011
37 // 37 //
38 // Modifications: 38 // Modifications:
39 // 39 //
40 // 31-05-12 D. Sawkey put back in high energy 40 // 31-05-12 D. Sawkey put back in high energy limit for brem, russian roulette
41 // 30-05-12 D. Sawkey brem split gammas are u 41 // 30-05-12 D. Sawkey brem split gammas are unique; do weight tests for
42 // brem, russian roulette 42 // brem, russian roulette
43 // ------------------------------------------- 43 // -------------------------------------------------------------------
44 // 44 //
45 //....oooOO0OOooo........oooOO0OOooo........oo 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
46 //....oooOO0OOooo........oooOO0OOooo........oo 46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
47 47
48 #include "G4EmBiasingManager.hh" 48 #include "G4EmBiasingManager.hh"
49 #include "G4SystemOfUnits.hh" 49 #include "G4SystemOfUnits.hh"
50 #include "G4PhysicalConstants.hh" 50 #include "G4PhysicalConstants.hh"
51 #include "G4MaterialCutsCouple.hh" 51 #include "G4MaterialCutsCouple.hh"
52 #include "G4ProductionCutsTable.hh" 52 #include "G4ProductionCutsTable.hh"
53 #include "G4ProductionCuts.hh" 53 #include "G4ProductionCuts.hh"
54 #include "G4Region.hh" 54 #include "G4Region.hh"
55 #include "G4RegionStore.hh" 55 #include "G4RegionStore.hh"
56 #include "G4Track.hh" 56 #include "G4Track.hh"
57 #include "G4Electron.hh" 57 #include "G4Electron.hh"
58 #include "G4Gamma.hh" 58 #include "G4Gamma.hh"
59 #include "G4VEmModel.hh" 59 #include "G4VEmModel.hh"
60 #include "G4LossTableManager.hh" 60 #include "G4LossTableManager.hh"
61 #include "G4ParticleChangeForLoss.hh" 61 #include "G4ParticleChangeForLoss.hh"
62 #include "G4ParticleChangeForGamma.hh" 62 #include "G4ParticleChangeForGamma.hh"
63 #include "G4EmParameters.hh" 63 #include "G4EmParameters.hh"
64 64
65 //....oooOO0OOooo........oooOO0OOooo........oo 65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
66 66
67 G4EmBiasingManager::G4EmBiasingManager() << 67 G4EmBiasingManager::G4EmBiasingManager()
68 : fDirectionalSplittingTarget(0.0,0.0,0.0) << 68 : nForcedRegions(0),nSecBiasedRegions(0),eIonisation(nullptr),
>> 69 currentStepLimit(0.0),startTracking(true)
69 { 70 {
70 fSafetyMin = 1.e-6*mm; 71 fSafetyMin = 1.e-6*mm;
71 theElectron = G4Electron::Electron(); 72 theElectron = G4Electron::Electron();
72 theGamma = G4Gamma::Gamma(); 73 theGamma = G4Gamma::Gamma();
>> 74
>> 75 fDirectionalSplitting = false;
>> 76 fDirectionalSplittingRadius = 0.;
>> 77 fDirectionalSplittingTarget = G4ThreeVector(0.,0.,0.);
>> 78 fDirectionalSplittingWeights.clear();
>> 79 fWeight = 1.;
73 } 80 }
74 81
75 //....oooOO0OOooo........oooOO0OOooo........oo 82 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
76 83
77 G4EmBiasingManager::~G4EmBiasingManager() = de << 84 G4EmBiasingManager::~G4EmBiasingManager()
>> 85 {}
78 86
79 //....oooOO0OOooo........oooOO0OOooo........oo 87 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
80 88
81 void G4EmBiasingManager::Initialise(const G4Pa 89 void G4EmBiasingManager::Initialise(const G4ParticleDefinition& part,
82 const G4St 90 const G4String& procName, G4int verbose)
83 { 91 {
84 //G4cout << "G4EmBiasingManager::Initialise 92 //G4cout << "G4EmBiasingManager::Initialise for "
85 // << part.GetParticleName() 93 // << part.GetParticleName()
86 // << " and " << procName << G4endl; 94 // << " and " << procName << G4endl;
87 const G4ProductionCutsTable* theCoupleTable= 95 const G4ProductionCutsTable* theCoupleTable=
88 G4ProductionCutsTable::GetProductionCutsTa 96 G4ProductionCutsTable::GetProductionCutsTable();
89 G4int numOfCouples = (G4int)theCoupleTable-> << 97 size_t numOfCouples = theCoupleTable->GetTableSize();
90 98
91 if(0 < nForcedRegions) { idxForcedCouple.res 99 if(0 < nForcedRegions) { idxForcedCouple.resize(numOfCouples, -1); }
92 if(0 < nSecBiasedRegions) { idxSecBiasedCoup 100 if(0 < nSecBiasedRegions) { idxSecBiasedCouple.resize(numOfCouples, -1); }
93 101
94 // Deexcitation 102 // Deexcitation
95 for (G4int j=0; j<numOfCouples; ++j) { << 103 for (size_t j=0; j<numOfCouples; ++j) {
96 const G4MaterialCutsCouple* couple = 104 const G4MaterialCutsCouple* couple =
97 theCoupleTable->GetMaterialCutsCouple(j) 105 theCoupleTable->GetMaterialCutsCouple(j);
98 const G4ProductionCuts* pcuts = couple->Ge 106 const G4ProductionCuts* pcuts = couple->GetProductionCuts();
99 if(0 < nForcedRegions) { 107 if(0 < nForcedRegions) {
100 for(G4int i=0; i<nForcedRegions; ++i) { 108 for(G4int i=0; i<nForcedRegions; ++i) {
101 if(forcedRegions[i]) { 109 if(forcedRegions[i]) {
102 if(pcuts == forcedRegions[i]->GetPro 110 if(pcuts == forcedRegions[i]->GetProductionCuts()) {
103 idxForcedCouple[j] = i; 111 idxForcedCouple[j] = i;
104 break; 112 break;
105 } 113 }
106 } 114 }
107 } 115 }
108 } 116 }
109 if(0 < nSecBiasedRegions) { 117 if(0 < nSecBiasedRegions) {
110 for(G4int i=0; i<nSecBiasedRegions; ++i) 118 for(G4int i=0; i<nSecBiasedRegions; ++i) {
111 if(secBiasedRegions[i]) { 119 if(secBiasedRegions[i]) {
112 if(pcuts == secBiasedRegions[i]->Get 120 if(pcuts == secBiasedRegions[i]->GetProductionCuts()) {
113 idxSecBiasedCouple[j] = i; 121 idxSecBiasedCouple[j] = i;
114 break; 122 break;
115 } 123 }
116 } 124 }
117 } 125 }
118 } 126 }
119 } 127 }
120 128
121 G4EmParameters* param = G4EmParameters::Inst 129 G4EmParameters* param = G4EmParameters::Instance();
122 SetDirectionalSplitting(param->GetDirectiona 130 SetDirectionalSplitting(param->GetDirectionalSplitting());
123 if (fDirectionalSplitting) { 131 if (fDirectionalSplitting) {
124 SetDirectionalSplittingTarget(param->GetDi 132 SetDirectionalSplittingTarget(param->GetDirectionalSplittingTarget());
125 SetDirectionalSplittingRadius(param->GetDi 133 SetDirectionalSplittingRadius(param->GetDirectionalSplittingRadius());
126 } 134 }
127 135
128 if (nForcedRegions > 0 && 0 < verbose) { 136 if (nForcedRegions > 0 && 0 < verbose) {
129 G4cout << " Forced Interaction is activate 137 G4cout << " Forced Interaction is activated for "
130 << part.GetParticleName() << " and 138 << part.GetParticleName() << " and "
131 << procName 139 << procName
132 << " inside G4Regions: " << G4endl; 140 << " inside G4Regions: " << G4endl;
133 for (G4int i=0; i<nForcedRegions; ++i) { 141 for (G4int i=0; i<nForcedRegions; ++i) {
134 const G4Region* r = forcedRegions[i]; 142 const G4Region* r = forcedRegions[i];
135 if(r) { G4cout << " " << r->Ge 143 if(r) { G4cout << " " << r->GetName() << G4endl; }
136 } 144 }
137 } 145 }
138 if (nSecBiasedRegions > 0 && 0 < verbose) { 146 if (nSecBiasedRegions > 0 && 0 < verbose) {
139 G4cout << " Secondary biasing is activated 147 G4cout << " Secondary biasing is activated for "
140 << part.GetParticleName() << " and 148 << part.GetParticleName() << " and "
141 << procName 149 << procName
142 << " inside G4Regions: " << G4endl; 150 << " inside G4Regions: " << G4endl;
143 for (G4int i=0; i<nSecBiasedRegions; ++i) 151 for (G4int i=0; i<nSecBiasedRegions; ++i) {
144 const G4Region* r = secBiasedRegions[i]; 152 const G4Region* r = secBiasedRegions[i];
145 if(r) { 153 if(r) {
146 G4cout << " " << r->GetName( 154 G4cout << " " << r->GetName()
147 << " BiasingWeight= " << secBi 155 << " BiasingWeight= " << secBiasedWeight[i] << G4endl;
148 } 156 }
149 } 157 }
150 if (fDirectionalSplitting) { 158 if (fDirectionalSplitting) {
151 G4cout << " Directional splitting ac 159 G4cout << " Directional splitting activated, with target position: "
152 << fDirectionalSplittingTarget/cm 160 << fDirectionalSplittingTarget/cm
153 << " cm; radius: " 161 << " cm; radius: "
154 << fDirectionalSplittingRadius/cm 162 << fDirectionalSplittingRadius/cm
155 << "cm." << G4endl; 163 << "cm." << G4endl;
156 } 164 }
157 } 165 }
158 } 166 }
159 167
160 //....oooOO0OOooo........oooOO0OOooo........oo 168 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
161 169
162 void G4EmBiasingManager::ActivateForcedInterac 170 void G4EmBiasingManager::ActivateForcedInteraction(G4double val,
163 171 const G4String& rname)
164 { 172 {
165 G4RegionStore* regionStore = G4RegionStore:: 173 G4RegionStore* regionStore = G4RegionStore::GetInstance();
166 G4String name = rname; 174 G4String name = rname;
167 if(name == "" || name == "world" || name == 175 if(name == "" || name == "world" || name == "World") {
168 name = "DefaultRegionForTheWorld"; 176 name = "DefaultRegionForTheWorld";
169 } 177 }
170 const G4Region* reg = regionStore->GetRegion 178 const G4Region* reg = regionStore->GetRegion(name, false);
171 if(!reg) { 179 if(!reg) {
172 G4cout << "### G4EmBiasingManager::ForcedI 180 G4cout << "### G4EmBiasingManager::ForcedInteraction WARNING: "
173 << " G4Region <" 181 << " G4Region <"
174 << rname << "> is unknown" << G4end 182 << rname << "> is unknown" << G4endl;
175 return; 183 return;
176 } 184 }
177 185
178 // the region is in the list 186 // the region is in the list
179 if (0 < nForcedRegions) { 187 if (0 < nForcedRegions) {
180 for (G4int i=0; i<nForcedRegions; ++i) { 188 for (G4int i=0; i<nForcedRegions; ++i) {
181 if (reg == forcedRegions[i]) { 189 if (reg == forcedRegions[i]) {
182 lengthForRegion[i] = val; 190 lengthForRegion[i] = val;
183 return; 191 return;
184 } 192 }
185 } 193 }
186 } 194 }
187 if(val < 0.0) { 195 if(val < 0.0) {
188 G4cout << "### G4EmBiasingManager::ForcedI 196 G4cout << "### G4EmBiasingManager::ForcedInteraction WARNING: "
189 << val << " < 0.0, so no activation 197 << val << " < 0.0, so no activation for the G4Region <"
190 << rname << ">" << G4endl; 198 << rname << ">" << G4endl;
191 return; 199 return;
192 } 200 }
193 201
194 // new region 202 // new region
195 forcedRegions.push_back(reg); 203 forcedRegions.push_back(reg);
196 lengthForRegion.push_back(val); 204 lengthForRegion.push_back(val);
197 ++nForcedRegions; 205 ++nForcedRegions;
198 } 206 }
199 207
200 //....oooOO0OOooo........oooOO0OOooo........oo 208 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
201 209
202 void 210 void
203 G4EmBiasingManager::ActivateSecondaryBiasing(c 211 G4EmBiasingManager::ActivateSecondaryBiasing(const G4String& rname,
204 G 212 G4double factor,
205 G 213 G4double energyLimit)
206 { 214 {
207 //G4cout << "G4EmBiasingManager::ActivateSec 215 //G4cout << "G4EmBiasingManager::ActivateSecondaryBiasing: "
208 // << rname << " F= " << factor << " 216 // << rname << " F= " << factor << " E(MeV)= " << energyLimit/MeV
209 // << G4endl; 217 // << G4endl;
210 G4RegionStore* regionStore = G4RegionStore:: 218 G4RegionStore* regionStore = G4RegionStore::GetInstance();
211 G4String name = rname; 219 G4String name = rname;
212 if(name == "" || name == "world" || name == 220 if(name == "" || name == "world" || name == "World") {
213 name = "DefaultRegionForTheWorld"; 221 name = "DefaultRegionForTheWorld";
214 } 222 }
215 const G4Region* reg = regionStore->GetRegion 223 const G4Region* reg = regionStore->GetRegion(name, false);
216 if(!reg) { 224 if(!reg) {
217 G4cout << "### G4EmBiasingManager::Activat 225 G4cout << "### G4EmBiasingManager::ActivateBremsstrahlungSplitting "
218 << "WARNING: G4Region <" 226 << "WARNING: G4Region <"
219 << rname << "> is unknown" << G4end 227 << rname << "> is unknown" << G4endl;
220 return; 228 return;
221 } 229 }
222 230
223 // Range cut 231 // Range cut
224 G4int nsplit = 0; 232 G4int nsplit = 0;
225 G4double w = factor; 233 G4double w = factor;
226 234
227 // splitting 235 // splitting
228 if(factor >= 1.0) { 236 if(factor >= 1.0) {
229 nsplit = G4lrint(factor); 237 nsplit = G4lrint(factor);
230 w = 1.0/G4double(nsplit); 238 w = 1.0/G4double(nsplit);
231 239
232 // Russian roulette 240 // Russian roulette
233 } else if(0.0 < factor) { 241 } else if(0.0 < factor) {
234 nsplit = 1; 242 nsplit = 1;
235 w = 1.0/factor; 243 w = 1.0/factor;
236 } 244 }
237 245
238 // the region is in the list - overwrite par 246 // the region is in the list - overwrite parameters
239 if (0 < nSecBiasedRegions) { 247 if (0 < nSecBiasedRegions) {
240 for (G4int i=0; i<nSecBiasedRegions; ++i) 248 for (G4int i=0; i<nSecBiasedRegions; ++i) {
241 if (reg == secBiasedRegions[i]) { 249 if (reg == secBiasedRegions[i]) {
242 secBiasedWeight[i] = w; 250 secBiasedWeight[i] = w;
243 nBremSplitting[i] = nsplit; 251 nBremSplitting[i] = nsplit;
244 secBiasedEnegryLimit[i] = energyLimit; 252 secBiasedEnegryLimit[i] = energyLimit;
245 return; 253 return;
246 } 254 }
247 } 255 }
248 } 256 }
249 /* 257 /*
250 G4cout << "### G4EmBiasingManager::Activat 258 G4cout << "### G4EmBiasingManager::ActivateSecondaryBiasing: "
251 << " nsplit= " << nsplit << " for t 259 << " nsplit= " << nsplit << " for the G4Region <"
252 << rname << ">" << G4endl; 260 << rname << ">" << G4endl;
253 */ 261 */
254 262
255 // new region 263 // new region
256 secBiasedRegions.push_back(reg); 264 secBiasedRegions.push_back(reg);
257 secBiasedWeight.push_back(w); 265 secBiasedWeight.push_back(w);
258 nBremSplitting.push_back(nsplit); 266 nBremSplitting.push_back(nsplit);
259 secBiasedEnegryLimit.push_back(energyLimit); 267 secBiasedEnegryLimit.push_back(energyLimit);
260 ++nSecBiasedRegions; 268 ++nSecBiasedRegions;
261 //G4cout << "nSecBiasedRegions= " << nSecBia 269 //G4cout << "nSecBiasedRegions= " << nSecBiasedRegions << G4endl;
262 } 270 }
263 271
264 //....oooOO0OOooo........oooOO0OOooo........oo 272 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
265 273
266 G4double G4EmBiasingManager::GetStepLimit(G4in 274 G4double G4EmBiasingManager::GetStepLimit(G4int coupleIdx,
267 G4do 275 G4double previousStep)
268 { 276 {
269 if(startTracking) { 277 if(startTracking) {
270 startTracking = false; 278 startTracking = false;
271 G4int i = idxForcedCouple[coupleIdx]; 279 G4int i = idxForcedCouple[coupleIdx];
272 if(i < 0) { 280 if(i < 0) {
273 currentStepLimit = DBL_MAX; 281 currentStepLimit = DBL_MAX;
274 } else { 282 } else {
275 currentStepLimit = lengthForRegion[i]; 283 currentStepLimit = lengthForRegion[i];
276 if(currentStepLimit > 0.0) { currentStep 284 if(currentStepLimit > 0.0) { currentStepLimit *= G4UniformRand(); }
277 } 285 }
278 } else { 286 } else {
279 currentStepLimit -= previousStep; 287 currentStepLimit -= previousStep;
280 } 288 }
281 if(currentStepLimit < 0.0) { currentStepLimi 289 if(currentStepLimit < 0.0) { currentStepLimit = 0.0; }
282 return currentStepLimit; 290 return currentStepLimit;
283 } 291 }
284 292
285 //....oooOO0OOooo........oooOO0OOooo........oo 293 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
286 294
287 G4double 295 G4double
288 G4EmBiasingManager::ApplySecondaryBiasing( 296 G4EmBiasingManager::ApplySecondaryBiasing(
289 std::vector<G4DynamicParti 297 std::vector<G4DynamicParticle*>& vd,
290 const G4Track& track, 298 const G4Track& track,
291 G4VEmModel* currentModel, 299 G4VEmModel* currentModel,
292 G4ParticleChangeForLoss* p 300 G4ParticleChangeForLoss* pPartChange,
293 G4double& eloss, 301 G4double& eloss,
294 G4int coupleIdx, 302 G4int coupleIdx,
295 G4double tcut, 303 G4double tcut,
296 G4double safety) 304 G4double safety)
297 { 305 {
298 G4int index = idxSecBiasedCouple[coupleIdx]; 306 G4int index = idxSecBiasedCouple[coupleIdx];
299 G4double weight = 1.; << 307 fWeight = 1.0;
300 if(0 <= index) { 308 if(0 <= index) {
301 std::size_t n = vd.size(); << 309 size_t n = vd.size();
302 310
303 // the check cannot be applied per seconda 311 // the check cannot be applied per secondary particle
304 // because weight correction is common, so 312 // because weight correction is common, so the first
305 // secondary is checked 313 // secondary is checked
306 if((0 < n && vd[0]->GetKineticEnergy() < s 314 if((0 < n && vd[0]->GetKineticEnergy() < secBiasedEnegryLimit[index])
307 || fDirectionalSplitting) { 315 || fDirectionalSplitting) {
308 316
309 G4int nsplit = nBremSplitting[index]; 317 G4int nsplit = nBremSplitting[index];
310 318
311 // Range cut 319 // Range cut
312 if(0 == nsplit) { 320 if(0 == nsplit) {
313 if(safety > fSafetyMin) { ApplyRangeCu 321 if(safety > fSafetyMin) { ApplyRangeCut(vd, track, eloss, safety); }
314 322
315 // Russian Roulette 323 // Russian Roulette
316 } else if(1 == nsplit) { 324 } else if(1 == nsplit) {
317 weight = ApplyRussianRoulette(vd, inde << 325 fWeight = ApplyRussianRoulette(vd, index);
318 326
319 // Splitting 327 // Splitting
320 } else { 328 } else {
321 if (fDirectionalSplitting) { 329 if (fDirectionalSplitting) {
322 weight = ApplyDirectionalSplitting(v << 330 ApplyDirectionalSplitting(vd, track, currentModel, index, tcut);
>> 331 fWeight = 1.;
323 } else { 332 } else {
324 G4double tmpEnergy = pPartChange->Ge 333 G4double tmpEnergy = pPartChange->GetProposedKineticEnergy();
325 G4ThreeVector tmpMomDir = pPartChang 334 G4ThreeVector tmpMomDir = pPartChange->GetProposedMomentumDirection();
326 335
327 weight = ApplySplitting(vd, track, c << 336 fWeight = ApplySplitting(vd, track, currentModel, index, tcut);
328 337
329 pPartChange->SetProposedKineticEnerg 338 pPartChange->SetProposedKineticEnergy(tmpEnergy);
330 pPartChange->ProposeMomentumDirectio 339 pPartChange->ProposeMomentumDirection(tmpMomDir);
331 } 340 }
332 } 341 }
333 } 342 }
334 } 343 }
335 return weight; << 344 return fWeight;
336 } 345 }
337 346
338 //....oooOO0OOooo........oooOO0OOooo........oo 347 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
339 348
340 G4double 349 G4double
341 G4EmBiasingManager::ApplySecondaryBiasing( 350 G4EmBiasingManager::ApplySecondaryBiasing(
342 std::vector<G4DynamicParticl 351 std::vector<G4DynamicParticle*>& vd,
343 const G4Track& track, 352 const G4Track& track,
344 G4VEmModel* currentModel, 353 G4VEmModel* currentModel,
345 G4ParticleChangeForGamma* pP 354 G4ParticleChangeForGamma* pPartChange,
346 G4double& eloss, 355 G4double& eloss,
347 G4int coupleIdx, 356 G4int coupleIdx,
348 G4double tcut, 357 G4double tcut,
349 G4double safety) 358 G4double safety)
350 { 359 {
351 G4int index = idxSecBiasedCouple[coupleIdx]; 360 G4int index = idxSecBiasedCouple[coupleIdx];
352 G4double weight = 1.; << 361 fWeight = 1.0;
353 if(0 <= index) { 362 if(0 <= index) {
354 std::size_t n = vd.size(); << 363 size_t n = vd.size();
355 364
356 // the check cannot be applied per seconda 365 // the check cannot be applied per secondary particle
357 // because weight correction is common, so 366 // because weight correction is common, so the first
358 // secondary is checked 367 // secondary is checked
359 if((0 < n && vd[0]->GetKineticEnergy() < s 368 if((0 < n && vd[0]->GetKineticEnergy() < secBiasedEnegryLimit[index])
360 || fDirectionalSplitting) { 369 || fDirectionalSplitting) {
361 370
362 G4int nsplit = nBremSplitting[index]; 371 G4int nsplit = nBremSplitting[index];
363 372
364 // Range cut 373 // Range cut
365 if(0 == nsplit) { 374 if(0 == nsplit) {
366 if(safety > fSafetyMin) { ApplyRangeCu 375 if(safety > fSafetyMin) { ApplyRangeCut(vd, track, eloss, safety); }
367 376
368 // Russian Roulette 377 // Russian Roulette
369 } else if(1 == nsplit) { 378 } else if(1 == nsplit) {
370 weight = ApplyRussianRoulette(vd, inde << 379 fWeight = ApplyRussianRoulette(vd, index);
371 380
372 // Splitting 381 // Splitting
373 } else { 382 } else {
374 if (fDirectionalSplitting) { 383 if (fDirectionalSplitting) {
375 weight = ApplyDirectionalSplitting(v << 384 ApplyDirectionalSplitting(vd, track, currentModel,
376 index, tcu 385 index, tcut, pPartChange);
>> 386 fWeight = 1.;
377 } else { 387 } else {
378 G4double tmpEnergy = pPartChange->Ge 388 G4double tmpEnergy = pPartChange->GetProposedKineticEnergy();
379 G4ThreeVector tmpMomDir = pPartChang 389 G4ThreeVector tmpMomDir = pPartChange->GetProposedMomentumDirection();
380 390
381 weight = ApplySplitting(vd, track, c << 391 fWeight = ApplySplitting(vd, track, currentModel, index, tcut);
382 392
383 pPartChange->SetProposedKineticEnerg 393 pPartChange->SetProposedKineticEnergy(tmpEnergy);
384 pPartChange->ProposeMomentumDirectio 394 pPartChange->ProposeMomentumDirection(tmpMomDir);
385 } 395 }
386 } 396 }
387 } 397 }
388 } 398 }
389 return weight; << 399 return fWeight;
390 } 400 }
391 401
392 //....oooOO0OOooo........oooOO0OOooo........oo 402 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
393 403
394 G4double 404 G4double
395 G4EmBiasingManager::ApplySecondaryBiasing(std: 405 G4EmBiasingManager::ApplySecondaryBiasing(std::vector<G4Track*>& track,
396 G4in 406 G4int coupleIdx)
397 { 407 {
398 G4int index = idxSecBiasedCouple[coupleIdx]; 408 G4int index = idxSecBiasedCouple[coupleIdx];
399 G4double weight = 1.; << 409 fWeight = 1.0;
400 if(0 <= index) { 410 if(0 <= index) {
401 std::size_t n = track.size(); << 411 size_t n = track.size();
402 412
403 // the check cannot be applied per seconda 413 // the check cannot be applied per secondary particle
404 // because weight correction is common, so 414 // because weight correction is common, so the first
405 // secondary is checked 415 // secondary is checked
406 if(0 < n && track[0]->GetKineticEnergy() < 416 if(0 < n && track[0]->GetKineticEnergy() < secBiasedEnegryLimit[index]) {
407 417
408 G4int nsplit = nBremSplitting[index]; 418 G4int nsplit = nBremSplitting[index];
409 419
410 // Russian Roulette only 420 // Russian Roulette only
411 if(1 == nsplit) { 421 if(1 == nsplit) {
412 weight = secBiasedWeight[index]; << 422 fWeight = secBiasedWeight[index];
413 for(std::size_t k=0; k<n; ++k) { << 423 for(size_t k=0; k<n; ++k) {
414 if(G4UniformRand()*weight > 1.0) { << 424 if(G4UniformRand()*fWeight > 1.0) {
415 const G4Track* t = track[k]; 425 const G4Track* t = track[k];
416 delete t; 426 delete t;
417 track[k] = nullptr; << 427 track[k] = 0;
418 } 428 }
419 } 429 }
420 } 430 }
421 } 431 }
422 } 432 }
423 return weight; << 433 return fWeight;
424 } 434 }
425 435
426 //....oooOO0OOooo........oooOO0OOooo........oo 436 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
427 437
428 void 438 void
429 G4EmBiasingManager::ApplyRangeCut(std::vector< 439 G4EmBiasingManager::ApplyRangeCut(std::vector<G4DynamicParticle*>& vd,
430 const G4Trac 440 const G4Track& track,
431 G4double& el 441 G4double& eloss, G4double safety)
432 { 442 {
433 std::size_t n = vd.size(); << 443 size_t n = vd.size();
434 if(!eIonisation) { 444 if(!eIonisation) {
435 eIonisation = 445 eIonisation =
436 G4LossTableManager::Instance()->GetEnerg 446 G4LossTableManager::Instance()->GetEnergyLossProcess(theElectron);
437 } 447 }
438 if(eIonisation) { 448 if(eIonisation) {
439 for(std::size_t k=0; k<n; ++k) { << 449 for(size_t k=0; k<n; ++k) {
440 const G4DynamicParticle* dp = vd[k]; 450 const G4DynamicParticle* dp = vd[k];
441 if(dp->GetDefinition() == theElectron) { 451 if(dp->GetDefinition() == theElectron) {
442 G4double e = dp->GetKineticEnergy(); 452 G4double e = dp->GetKineticEnergy();
443 if(eIonisation->GetRange(e, track.GetM << 453 if(eIonisation->GetRangeForLoss(e, track.GetMaterialCutsCouple())
>> 454 < safety) {
444 eloss += e; 455 eloss += e;
445 delete dp; 456 delete dp;
446 vd[k] = nullptr; << 457 vd[k] = 0;
447 } 458 }
448 } 459 }
449 } 460 }
450 } 461 }
451 } 462 }
452 463
453 //....oooOO0OOooo........oooOO0OOooo........oo 464 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
454 465
455 G4bool G4EmBiasingManager::CheckDirection(G4Th 466 G4bool G4EmBiasingManager::CheckDirection(G4ThreeVector pos,
456 G4Th 467 G4ThreeVector momdir) const
457 { 468 {
458 G4ThreeVector delta = fDirectionalSplittingT 469 G4ThreeVector delta = fDirectionalSplittingTarget - pos;
459 G4double angle = momdir.angle(delta); 470 G4double angle = momdir.angle(delta);
460 G4double dist = delta.cross(momdir).mag(); 471 G4double dist = delta.cross(momdir).mag();
461 if (dist <= fDirectionalSplittingRadius && a 472 if (dist <= fDirectionalSplittingRadius && angle < halfpi) {
462 return true; 473 return true;
463 } 474 }
464 return false; 475 return false;
465 } 476 }
466 477
467 //....oooOO0OOooo........oooOO0OOooo........oo 478 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
468 479
469 G4double 480 G4double
470 G4EmBiasingManager::ApplySplitting(std::vector 481 G4EmBiasingManager::ApplySplitting(std::vector<G4DynamicParticle*>& vd,
471 const G4Tra 482 const G4Track& track,
472 G4VEmModel* 483 G4VEmModel* currentModel,
473 G4int index 484 G4int index,
474 G4double tc 485 G4double tcut)
475 { 486 {
476 // method is applied only if 1 secondary cre 487 // method is applied only if 1 secondary created PostStep
477 // in the case of many secondaries there is 488 // in the case of many secondaries there is a contradiction
478 G4double weight = 1.; << 489 fWeight = 1.0;
479 std::size_t n = vd.size(); << 490 size_t n = vd.size();
480 G4double w = secBiasedWeight[index]; 491 G4double w = secBiasedWeight[index];
481 492
482 if(1 != n || 1.0 <= w) { return weight; } << 493 if(1 != n || 1.0 <= w) { return fWeight; }
483 494
484 G4double trackWeight = track.GetWeight(); 495 G4double trackWeight = track.GetWeight();
485 const G4DynamicParticle* dynParticle = track 496 const G4DynamicParticle* dynParticle = track.GetDynamicParticle();
486 497
487 G4int nsplit = nBremSplitting[index]; 498 G4int nsplit = nBremSplitting[index];
488 499
489 // double splitting is suppressed 500 // double splitting is suppressed
490 if(1 < nsplit && trackWeight>w) { 501 if(1 < nsplit && trackWeight>w) {
491 502
492 weight = w; << 503 fWeight = w;
493 if(nsplit > (G4int)tmpSecondaries.size()) 504 if(nsplit > (G4int)tmpSecondaries.size()) {
494 tmpSecondaries.reserve(nsplit); 505 tmpSecondaries.reserve(nsplit);
495 } 506 }
496 const G4MaterialCutsCouple* couple = track 507 const G4MaterialCutsCouple* couple = track.GetMaterialCutsCouple();
497 // start from 1, because already one secon 508 // start from 1, because already one secondary created
498 for(G4int k=1; k<nsplit; ++k) { 509 for(G4int k=1; k<nsplit; ++k) {
499 tmpSecondaries.clear(); 510 tmpSecondaries.clear();
500 currentModel->SampleSecondaries(&tmpSeco 511 currentModel->SampleSecondaries(&tmpSecondaries, couple, dynParticle,
501 tcut); 512 tcut);
502 for (std::size_t kk=0; kk<tmpSecondaries << 513 for (size_t kk=0; kk<tmpSecondaries.size(); ++kk) {
503 vd.push_back(tmpSecondaries[kk]); 514 vd.push_back(tmpSecondaries[kk]);
504 } 515 }
505 } 516 }
506 } 517 }
507 return weight; << 518 return fWeight;
508 } 519 }
509 520
510 //....oooOO0OOooo........oooOO0OOooo........oo 521 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
511 522
512 G4double << 523 void
513 G4EmBiasingManager::ApplyDirectionalSplitting( 524 G4EmBiasingManager::ApplyDirectionalSplitting(
514 std::vector 525 std::vector<G4DynamicParticle*>& vd,
515 const G4Tra 526 const G4Track& track,
516 G4VEmModel* 527 G4VEmModel* currentModel,
517 G4int index 528 G4int index,
518 G4double tc 529 G4double tcut,
519 G4ParticleC 530 G4ParticleChangeForGamma* partChange)
520 { 531 {
521 // primary is gamma. do splitting/RR as appr 532 // primary is gamma. do splitting/RR as appropriate
522 // method applied for any number of secondar 533 // method applied for any number of secondaries
523 534
524 G4double weight = 1.0; 535 G4double weight = 1.0;
525 G4double w = secBiasedWeight[index]; 536 G4double w = secBiasedWeight[index];
526 537
527 fDirectionalSplittingWeights.clear(); 538 fDirectionalSplittingWeights.clear();
528 if(1.0 <= w) { 539 if(1.0 <= w) {
529 fDirectionalSplittingWeights.push_back(wei << 540 fDirectionalSplittingWeights.push_back(fWeight);
530 return weight; << 541 return;
531 } 542 }
532 543
533 G4double trackWeight = track.GetWeight(); 544 G4double trackWeight = track.GetWeight();
534 G4int nsplit = nBremSplitting[index]; 545 G4int nsplit = nBremSplitting[index];
535 546
536 // double splitting is suppressed 547 // double splitting is suppressed
537 if(1 < nsplit && trackWeight>w) { 548 if(1 < nsplit && trackWeight>w) {
538 549
539 weight = w; 550 weight = w;
540 const G4ThreeVector pos = track.GetPositio 551 const G4ThreeVector pos = track.GetPosition();
541 552
542 G4bool foundPrimaryParticle = false; 553 G4bool foundPrimaryParticle = false;
543 G4double primaryEnergy = 0.; 554 G4double primaryEnergy = 0.;
544 G4ThreeVector primaryMomdir(0.,0.,0.); 555 G4ThreeVector primaryMomdir(0.,0.,0.);
545 G4double primaryWeight = trackWeight; 556 G4double primaryWeight = trackWeight;
546 557
547 tmpSecondaries = vd; 558 tmpSecondaries = vd;
548 vd.clear(); 559 vd.clear();
549 vd.reserve(nsplit); 560 vd.reserve(nsplit);
550 for (G4int k=0; k<nsplit; ++k) { 561 for (G4int k=0; k<nsplit; ++k) {
551 if (k>0) { // for k==0, SampleSecondari 562 if (k>0) { // for k==0, SampleSecondaries has already been called
552 tmpSecondaries.clear(); 563 tmpSecondaries.clear();
553 // SampleSecondaries modifies primary 564 // SampleSecondaries modifies primary info stored in partChange
554 currentModel->SampleSecondaries(&tmpSe 565 currentModel->SampleSecondaries(&tmpSecondaries,
555 track. 566 track.GetMaterialCutsCouple(),
556 track. 567 track.GetDynamicParticle(), tcut);
557 } 568 }
558 for (std::size_t kk=0; kk<tmpSecondaries << 569 for (auto sec : tmpSecondaries) {
559 if (tmpSecondaries[kk]->GetParticleDef << 570 if (sec->GetParticleDefinition() == theGamma) {
560 if (CheckDirection(pos, tmpSecondari << 571 if (CheckDirection(pos, sec->GetMomentumDirection())) {
561 vd.push_back(tmpSecondaries[kk]); << 572 vd.push_back(sec);
562 fDirectionalSplittingWeights.push_ << 573 fDirectionalSplittingWeights.push_back(weight);
563 } else if (G4UniformRand() < w) { 574 } else if (G4UniformRand() < w) {
564 vd.push_back(tmpSecondaries[kk]); << 575 vd.push_back(sec);
565 fDirectionalSplittingWeights.push_ << 576 fDirectionalSplittingWeights.push_back(1.0);
566 } else { <<
567 delete tmpSecondaries[kk]; <<
568 tmpSecondaries[kk] = nullptr; <<
569 } 577 }
570 } else if (k==0) { // keep charged 2ry << 578 } else if (k==0) { // not gamma
571 vd.push_back(tmpSecondaries[kk]); << 579 vd.push_back(sec);
572 fDirectionalSplittingWeights.push_ba << 580 fDirectionalSplittingWeights.push_back(1.);
573 } else { <<
574 delete tmpSecondaries[kk]; <<
575 tmpSecondaries[kk] = nullptr; <<
576 } 581 }
577 } 582 }
578 583
579 // primary 584 // primary
580 G4double en = partChange->GetProposedKin 585 G4double en = partChange->GetProposedKineticEnergy();
581 if (en>0.) { // don't add if kinetic ene 586 if (en>0.) { // don't add if kinetic energy = 0
582 G4ThreeVector momdir = partChange->Get 587 G4ThreeVector momdir = partChange->GetProposedMomentumDirection();
583 if (CheckDirection(pos,momdir)) { 588 if (CheckDirection(pos,momdir)) {
584 // keep only one primary; others are 589 // keep only one primary; others are secondaries
585 if (!foundPrimaryParticle) { 590 if (!foundPrimaryParticle) {
586 primaryEnergy = en; 591 primaryEnergy = en;
587 primaryMomdir = momdir; 592 primaryMomdir = momdir;
588 foundPrimaryParticle = true; 593 foundPrimaryParticle = true;
589 primaryWeight = weight; 594 primaryWeight = weight;
590 } else { 595 } else {
591 auto dp = new G4DynamicParticle(th << 596 G4DynamicParticle* dp = new G4DynamicParticle(theGamma,
592 partChange->GetPropo << 597 partChange->GetProposedMomentumDirection(),
593 partChange->GetPropo << 598 partChange->GetProposedKineticEnergy());
594 vd.push_back(dp); 599 vd.push_back(dp);
595 fDirectionalSplittingWeights.push_ << 600 fDirectionalSplittingWeights.push_back(weight);
596 } 601 }
597 } else if (G4UniformRand()<w) { // not 602 } else if (G4UniformRand()<w) { // not going to target. play RR.
598 if (!foundPrimaryParticle) { 603 if (!foundPrimaryParticle) {
599 foundPrimaryParticle = true; 604 foundPrimaryParticle = true;
600 primaryEnergy = en; 605 primaryEnergy = en;
601 primaryMomdir = momdir; 606 primaryMomdir = momdir;
602 primaryWeight = 1.; 607 primaryWeight = 1.;
603 } else { 608 } else {
604 auto dp = new G4DynamicParticle(th << 609 G4DynamicParticle* dp = new G4DynamicParticle(theGamma,
605 partChange->GetPropo << 610 partChange->GetProposedMomentumDirection(),
606 partChange->GetPropo << 611 partChange->GetProposedKineticEnergy());
607 vd.push_back(dp); 612 vd.push_back(dp);
608 fDirectionalSplittingWeights.push_ << 613 fDirectionalSplittingWeights.push_back(1.0);
609 } 614 }
610 } 615 }
611 } 616 }
612 } // end of loop over nsplit 617 } // end of loop over nsplit
613 618
614 partChange->ProposeWeight(primaryWeight); 619 partChange->ProposeWeight(primaryWeight);
615 partChange->SetProposedKineticEnergy(prima 620 partChange->SetProposedKineticEnergy(primaryEnergy);
616 partChange->ProposeMomentumDirection(prima 621 partChange->ProposeMomentumDirection(primaryMomdir);
617 } else { 622 } else {
618 for (std::size_t i = 0; i < vd.size(); ++i << 623 for (size_t i = 0; i < vd.size(); ++i) {
619 fDirectionalSplittingWeights.push_back(1 << 624 fDirectionalSplittingWeights.push_back(trackWeight);
620 } 625 }
621 } 626 }
622 627
623 return weight; << 628 return;
624 } 629 }
625 630
626 //....oooOO0OOooo........oooOO0OOooo........oo 631 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
627 632
628 G4double G4EmBiasingManager::GetWeight(G4int i 633 G4double G4EmBiasingManager::GetWeight(G4int i)
629 { 634 {
630 // normally return 1. If a directionally spl <<
631 // return 1./(splitting factor) <<
632 if (fDirectionalSplittingWeights.size() >= ( 635 if (fDirectionalSplittingWeights.size() >= (unsigned int)(i+1) ) {
633 G4double w = fDirectionalSplittingWeights[ << 636 return fDirectionalSplittingWeights[i];
634 fDirectionalSplittingWeights[i] = 1.; // e << 637 }
635 return w; << 638 else {
636 } else { << 639 return fWeight;
637 return 1.; <<
638 } 640 }
639 } 641 }
640 642
641 G4double << 643 void
642 G4EmBiasingManager::ApplyDirectionalSplitting( 644 G4EmBiasingManager::ApplyDirectionalSplitting(
643 std::vector< 645 std::vector<G4DynamicParticle*>& vd,
644 const G4Trac 646 const G4Track& track,
645 G4VEmModel* 647 G4VEmModel* currentModel,
646 G4int index, 648 G4int index,
647 G4double tcu 649 G4double tcut)
648 { 650 {
649 // primary is not a gamma. Do nothing with p << 651 // Do nothing with primary
650 652
651 G4double weight = 1.0; 653 G4double weight = 1.0;
652 G4double w = secBiasedWeight[index]; 654 G4double w = secBiasedWeight[index];
653 655
654 fDirectionalSplittingWeights.clear(); 656 fDirectionalSplittingWeights.clear();
655 if(1.0 <= w) { 657 if(1.0 <= w) {
656 fDirectionalSplittingWeights.push_back(wei 658 fDirectionalSplittingWeights.push_back(weight);
657 return weight; << 659 return;
658 } 660 }
659 661
660 G4double trackWeight = track.GetWeight(); 662 G4double trackWeight = track.GetWeight();
661 G4int nsplit = nBremSplitting[index]; 663 G4int nsplit = nBremSplitting[index];
662 664
663 // double splitting is suppressed 665 // double splitting is suppressed
664 if(1 < nsplit && trackWeight>w) { 666 if(1 < nsplit && trackWeight>w) {
665 667
666 weight = w; 668 weight = w;
667 const G4ThreeVector pos = track.GetPositio 669 const G4ThreeVector pos = track.GetPosition();
668 670
669 tmpSecondaries = vd; 671 tmpSecondaries = vd;
670 vd.clear(); 672 vd.clear();
671 vd.reserve(nsplit); 673 vd.reserve(nsplit);
672 for (G4int k=0; k<nsplit; ++k) { 674 for (G4int k=0; k<nsplit; ++k) {
673 if (k>0) { 675 if (k>0) {
674 tmpSecondaries.clear(); 676 tmpSecondaries.clear();
675 currentModel->SampleSecondaries(&tmpSe 677 currentModel->SampleSecondaries(&tmpSecondaries,
676 track. 678 track.GetMaterialCutsCouple(),
677 track. 679 track.GetDynamicParticle(), tcut);
678 } 680 }
679 //for (auto sec : tmpSecondaries) { << 681 for (auto sec : tmpSecondaries) {
680 for (std::size_t kk=0; kk < tmpSecondari << 682 if (CheckDirection(pos, sec->GetMomentumDirection())) {
681 if (CheckDirection(pos, tmpSecondaries << 683 vd.push_back(sec);
682 vd.push_back(tmpSecondaries[kk]); << 684 fDirectionalSplittingWeights.push_back(weight);
683 fDirectionalSplittingWeights.push_ba <<
684 } else if (G4UniformRand()<w) { 685 } else if (G4UniformRand()<w) {
685 vd.push_back(tmpSecondaries[kk]); << 686 vd.push_back(sec);
686 fDirectionalSplittingWeights.push_ba << 687 fDirectionalSplittingWeights.push_back(1.0);
687 } else { <<
688 delete tmpSecondaries[kk]; <<
689 tmpSecondaries[kk] = nullptr; <<
690 } 688 }
691 } 689 }
692 } // end of loop over nsplit 690 } // end of loop over nsplit
693 } else { // no splitting was done; still nee 691 } else { // no splitting was done; still need weights
694 for (std::size_t i = 0; i < vd.size(); ++i << 692 for (size_t i = 0; i < vd.size(); ++i) {
695 fDirectionalSplittingWeights.push_back(1 << 693 fDirectionalSplittingWeights.push_back(trackWeight);
696 } 694 }
697 } 695 }
698 return weight; << 696 return;
699 } 697 }
700 698