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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 : fDirectionalSplittingTarget(0.0,0.0,0.0)
69 { 69 {
70 fSafetyMin = 1.e-6*mm; 70 fSafetyMin = 1.e-6*mm;
71 theElectron = G4Electron::Electron(); 71 theElectron = G4Electron::Electron();
72 theGamma = G4Gamma::Gamma(); 72 theGamma = G4Gamma::Gamma();
73 } 73 }
74 74
75 //....oooOO0OOooo........oooOO0OOooo........oo 75 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
76 76
77 G4EmBiasingManager::~G4EmBiasingManager() = de << 77 G4EmBiasingManager::~G4EmBiasingManager()
>> 78 {}
78 79
79 //....oooOO0OOooo........oooOO0OOooo........oo 80 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
80 81
81 void G4EmBiasingManager::Initialise(const G4Pa 82 void G4EmBiasingManager::Initialise(const G4ParticleDefinition& part,
82 const G4St 83 const G4String& procName, G4int verbose)
83 { 84 {
84 //G4cout << "G4EmBiasingManager::Initialise 85 //G4cout << "G4EmBiasingManager::Initialise for "
85 // << part.GetParticleName() 86 // << part.GetParticleName()
86 // << " and " << procName << G4endl; 87 // << " and " << procName << G4endl;
87 const G4ProductionCutsTable* theCoupleTable= 88 const G4ProductionCutsTable* theCoupleTable=
88 G4ProductionCutsTable::GetProductionCutsTa 89 G4ProductionCutsTable::GetProductionCutsTable();
89 G4int numOfCouples = (G4int)theCoupleTable-> << 90 size_t numOfCouples = theCoupleTable->GetTableSize();
90 91
91 if(0 < nForcedRegions) { idxForcedCouple.res 92 if(0 < nForcedRegions) { idxForcedCouple.resize(numOfCouples, -1); }
92 if(0 < nSecBiasedRegions) { idxSecBiasedCoup 93 if(0 < nSecBiasedRegions) { idxSecBiasedCouple.resize(numOfCouples, -1); }
93 94
94 // Deexcitation 95 // Deexcitation
95 for (G4int j=0; j<numOfCouples; ++j) { << 96 for (size_t j=0; j<numOfCouples; ++j) {
96 const G4MaterialCutsCouple* couple = 97 const G4MaterialCutsCouple* couple =
97 theCoupleTable->GetMaterialCutsCouple(j) 98 theCoupleTable->GetMaterialCutsCouple(j);
98 const G4ProductionCuts* pcuts = couple->Ge 99 const G4ProductionCuts* pcuts = couple->GetProductionCuts();
99 if(0 < nForcedRegions) { 100 if(0 < nForcedRegions) {
100 for(G4int i=0; i<nForcedRegions; ++i) { 101 for(G4int i=0; i<nForcedRegions; ++i) {
101 if(forcedRegions[i]) { 102 if(forcedRegions[i]) {
102 if(pcuts == forcedRegions[i]->GetPro 103 if(pcuts == forcedRegions[i]->GetProductionCuts()) {
103 idxForcedCouple[j] = i; 104 idxForcedCouple[j] = i;
104 break; 105 break;
105 } 106 }
106 } 107 }
107 } 108 }
108 } 109 }
109 if(0 < nSecBiasedRegions) { 110 if(0 < nSecBiasedRegions) {
110 for(G4int i=0; i<nSecBiasedRegions; ++i) 111 for(G4int i=0; i<nSecBiasedRegions; ++i) {
111 if(secBiasedRegions[i]) { 112 if(secBiasedRegions[i]) {
112 if(pcuts == secBiasedRegions[i]->Get 113 if(pcuts == secBiasedRegions[i]->GetProductionCuts()) {
113 idxSecBiasedCouple[j] = i; 114 idxSecBiasedCouple[j] = i;
114 break; 115 break;
115 } 116 }
116 } 117 }
117 } 118 }
118 } 119 }
119 } 120 }
120 121
121 G4EmParameters* param = G4EmParameters::Inst 122 G4EmParameters* param = G4EmParameters::Instance();
122 SetDirectionalSplitting(param->GetDirectiona 123 SetDirectionalSplitting(param->GetDirectionalSplitting());
123 if (fDirectionalSplitting) { 124 if (fDirectionalSplitting) {
124 SetDirectionalSplittingTarget(param->GetDi 125 SetDirectionalSplittingTarget(param->GetDirectionalSplittingTarget());
125 SetDirectionalSplittingRadius(param->GetDi 126 SetDirectionalSplittingRadius(param->GetDirectionalSplittingRadius());
126 } 127 }
127 128
128 if (nForcedRegions > 0 && 0 < verbose) { 129 if (nForcedRegions > 0 && 0 < verbose) {
129 G4cout << " Forced Interaction is activate 130 G4cout << " Forced Interaction is activated for "
130 << part.GetParticleName() << " and 131 << part.GetParticleName() << " and "
131 << procName 132 << procName
132 << " inside G4Regions: " << G4endl; 133 << " inside G4Regions: " << G4endl;
133 for (G4int i=0; i<nForcedRegions; ++i) { 134 for (G4int i=0; i<nForcedRegions; ++i) {
134 const G4Region* r = forcedRegions[i]; 135 const G4Region* r = forcedRegions[i];
135 if(r) { G4cout << " " << r->Ge 136 if(r) { G4cout << " " << r->GetName() << G4endl; }
136 } 137 }
137 } 138 }
138 if (nSecBiasedRegions > 0 && 0 < verbose) { 139 if (nSecBiasedRegions > 0 && 0 < verbose) {
139 G4cout << " Secondary biasing is activated 140 G4cout << " Secondary biasing is activated for "
140 << part.GetParticleName() << " and 141 << part.GetParticleName() << " and "
141 << procName 142 << procName
142 << " inside G4Regions: " << G4endl; 143 << " inside G4Regions: " << G4endl;
143 for (G4int i=0; i<nSecBiasedRegions; ++i) 144 for (G4int i=0; i<nSecBiasedRegions; ++i) {
144 const G4Region* r = secBiasedRegions[i]; 145 const G4Region* r = secBiasedRegions[i];
145 if(r) { 146 if(r) {
146 G4cout << " " << r->GetName( 147 G4cout << " " << r->GetName()
147 << " BiasingWeight= " << secBi 148 << " BiasingWeight= " << secBiasedWeight[i] << G4endl;
148 } 149 }
149 } 150 }
150 if (fDirectionalSplitting) { 151 if (fDirectionalSplitting) {
151 G4cout << " Directional splitting ac 152 G4cout << " Directional splitting activated, with target position: "
152 << fDirectionalSplittingTarget/cm 153 << fDirectionalSplittingTarget/cm
153 << " cm; radius: " 154 << " cm; radius: "
154 << fDirectionalSplittingRadius/cm 155 << fDirectionalSplittingRadius/cm
155 << "cm." << G4endl; 156 << "cm." << G4endl;
156 } 157 }
157 } 158 }
158 } 159 }
159 160
160 //....oooOO0OOooo........oooOO0OOooo........oo 161 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
161 162
162 void G4EmBiasingManager::ActivateForcedInterac 163 void G4EmBiasingManager::ActivateForcedInteraction(G4double val,
163 164 const G4String& rname)
164 { 165 {
165 G4RegionStore* regionStore = G4RegionStore:: 166 G4RegionStore* regionStore = G4RegionStore::GetInstance();
166 G4String name = rname; 167 G4String name = rname;
167 if(name == "" || name == "world" || name == 168 if(name == "" || name == "world" || name == "World") {
168 name = "DefaultRegionForTheWorld"; 169 name = "DefaultRegionForTheWorld";
169 } 170 }
170 const G4Region* reg = regionStore->GetRegion 171 const G4Region* reg = regionStore->GetRegion(name, false);
171 if(!reg) { 172 if(!reg) {
172 G4cout << "### G4EmBiasingManager::ForcedI 173 G4cout << "### G4EmBiasingManager::ForcedInteraction WARNING: "
173 << " G4Region <" 174 << " G4Region <"
174 << rname << "> is unknown" << G4end 175 << rname << "> is unknown" << G4endl;
175 return; 176 return;
176 } 177 }
177 178
178 // the region is in the list 179 // the region is in the list
179 if (0 < nForcedRegions) { 180 if (0 < nForcedRegions) {
180 for (G4int i=0; i<nForcedRegions; ++i) { 181 for (G4int i=0; i<nForcedRegions; ++i) {
181 if (reg == forcedRegions[i]) { 182 if (reg == forcedRegions[i]) {
182 lengthForRegion[i] = val; 183 lengthForRegion[i] = val;
183 return; 184 return;
184 } 185 }
185 } 186 }
186 } 187 }
187 if(val < 0.0) { 188 if(val < 0.0) {
188 G4cout << "### G4EmBiasingManager::ForcedI 189 G4cout << "### G4EmBiasingManager::ForcedInteraction WARNING: "
189 << val << " < 0.0, so no activation 190 << val << " < 0.0, so no activation for the G4Region <"
190 << rname << ">" << G4endl; 191 << rname << ">" << G4endl;
191 return; 192 return;
192 } 193 }
193 194
194 // new region 195 // new region
195 forcedRegions.push_back(reg); 196 forcedRegions.push_back(reg);
196 lengthForRegion.push_back(val); 197 lengthForRegion.push_back(val);
197 ++nForcedRegions; 198 ++nForcedRegions;
198 } 199 }
199 200
200 //....oooOO0OOooo........oooOO0OOooo........oo 201 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
201 202
202 void 203 void
203 G4EmBiasingManager::ActivateSecondaryBiasing(c 204 G4EmBiasingManager::ActivateSecondaryBiasing(const G4String& rname,
204 G 205 G4double factor,
205 G 206 G4double energyLimit)
206 { 207 {
207 //G4cout << "G4EmBiasingManager::ActivateSec 208 //G4cout << "G4EmBiasingManager::ActivateSecondaryBiasing: "
208 // << rname << " F= " << factor << " 209 // << rname << " F= " << factor << " E(MeV)= " << energyLimit/MeV
209 // << G4endl; 210 // << G4endl;
210 G4RegionStore* regionStore = G4RegionStore:: 211 G4RegionStore* regionStore = G4RegionStore::GetInstance();
211 G4String name = rname; 212 G4String name = rname;
212 if(name == "" || name == "world" || name == 213 if(name == "" || name == "world" || name == "World") {
213 name = "DefaultRegionForTheWorld"; 214 name = "DefaultRegionForTheWorld";
214 } 215 }
215 const G4Region* reg = regionStore->GetRegion 216 const G4Region* reg = regionStore->GetRegion(name, false);
216 if(!reg) { 217 if(!reg) {
217 G4cout << "### G4EmBiasingManager::Activat 218 G4cout << "### G4EmBiasingManager::ActivateBremsstrahlungSplitting "
218 << "WARNING: G4Region <" 219 << "WARNING: G4Region <"
219 << rname << "> is unknown" << G4end 220 << rname << "> is unknown" << G4endl;
220 return; 221 return;
221 } 222 }
222 223
223 // Range cut 224 // Range cut
224 G4int nsplit = 0; 225 G4int nsplit = 0;
225 G4double w = factor; 226 G4double w = factor;
226 227
227 // splitting 228 // splitting
228 if(factor >= 1.0) { 229 if(factor >= 1.0) {
229 nsplit = G4lrint(factor); 230 nsplit = G4lrint(factor);
230 w = 1.0/G4double(nsplit); 231 w = 1.0/G4double(nsplit);
231 232
232 // Russian roulette 233 // Russian roulette
233 } else if(0.0 < factor) { 234 } else if(0.0 < factor) {
234 nsplit = 1; 235 nsplit = 1;
235 w = 1.0/factor; 236 w = 1.0/factor;
236 } 237 }
237 238
238 // the region is in the list - overwrite par 239 // the region is in the list - overwrite parameters
239 if (0 < nSecBiasedRegions) { 240 if (0 < nSecBiasedRegions) {
240 for (G4int i=0; i<nSecBiasedRegions; ++i) 241 for (G4int i=0; i<nSecBiasedRegions; ++i) {
241 if (reg == secBiasedRegions[i]) { 242 if (reg == secBiasedRegions[i]) {
242 secBiasedWeight[i] = w; 243 secBiasedWeight[i] = w;
243 nBremSplitting[i] = nsplit; 244 nBremSplitting[i] = nsplit;
244 secBiasedEnegryLimit[i] = energyLimit; 245 secBiasedEnegryLimit[i] = energyLimit;
245 return; 246 return;
246 } 247 }
247 } 248 }
248 } 249 }
249 /* 250 /*
250 G4cout << "### G4EmBiasingManager::Activat 251 G4cout << "### G4EmBiasingManager::ActivateSecondaryBiasing: "
251 << " nsplit= " << nsplit << " for t 252 << " nsplit= " << nsplit << " for the G4Region <"
252 << rname << ">" << G4endl; 253 << rname << ">" << G4endl;
253 */ 254 */
254 255
255 // new region 256 // new region
256 secBiasedRegions.push_back(reg); 257 secBiasedRegions.push_back(reg);
257 secBiasedWeight.push_back(w); 258 secBiasedWeight.push_back(w);
258 nBremSplitting.push_back(nsplit); 259 nBremSplitting.push_back(nsplit);
259 secBiasedEnegryLimit.push_back(energyLimit); 260 secBiasedEnegryLimit.push_back(energyLimit);
260 ++nSecBiasedRegions; 261 ++nSecBiasedRegions;
261 //G4cout << "nSecBiasedRegions= " << nSecBia 262 //G4cout << "nSecBiasedRegions= " << nSecBiasedRegions << G4endl;
262 } 263 }
263 264
264 //....oooOO0OOooo........oooOO0OOooo........oo 265 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
265 266
266 G4double G4EmBiasingManager::GetStepLimit(G4in 267 G4double G4EmBiasingManager::GetStepLimit(G4int coupleIdx,
267 G4do 268 G4double previousStep)
268 { 269 {
269 if(startTracking) { 270 if(startTracking) {
270 startTracking = false; 271 startTracking = false;
271 G4int i = idxForcedCouple[coupleIdx]; 272 G4int i = idxForcedCouple[coupleIdx];
272 if(i < 0) { 273 if(i < 0) {
273 currentStepLimit = DBL_MAX; 274 currentStepLimit = DBL_MAX;
274 } else { 275 } else {
275 currentStepLimit = lengthForRegion[i]; 276 currentStepLimit = lengthForRegion[i];
276 if(currentStepLimit > 0.0) { currentStep 277 if(currentStepLimit > 0.0) { currentStepLimit *= G4UniformRand(); }
277 } 278 }
278 } else { 279 } else {
279 currentStepLimit -= previousStep; 280 currentStepLimit -= previousStep;
280 } 281 }
281 if(currentStepLimit < 0.0) { currentStepLimi 282 if(currentStepLimit < 0.0) { currentStepLimit = 0.0; }
282 return currentStepLimit; 283 return currentStepLimit;
283 } 284 }
284 285
285 //....oooOO0OOooo........oooOO0OOooo........oo 286 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
286 287
287 G4double 288 G4double
288 G4EmBiasingManager::ApplySecondaryBiasing( 289 G4EmBiasingManager::ApplySecondaryBiasing(
289 std::vector<G4DynamicParti 290 std::vector<G4DynamicParticle*>& vd,
290 const G4Track& track, 291 const G4Track& track,
291 G4VEmModel* currentModel, 292 G4VEmModel* currentModel,
292 G4ParticleChangeForLoss* p 293 G4ParticleChangeForLoss* pPartChange,
293 G4double& eloss, 294 G4double& eloss,
294 G4int coupleIdx, 295 G4int coupleIdx,
295 G4double tcut, 296 G4double tcut,
296 G4double safety) 297 G4double safety)
297 { 298 {
298 G4int index = idxSecBiasedCouple[coupleIdx]; 299 G4int index = idxSecBiasedCouple[coupleIdx];
299 G4double weight = 1.; 300 G4double weight = 1.;
300 if(0 <= index) { 301 if(0 <= index) {
301 std::size_t n = vd.size(); << 302 size_t n = vd.size();
302 303
303 // the check cannot be applied per seconda 304 // the check cannot be applied per secondary particle
304 // because weight correction is common, so 305 // because weight correction is common, so the first
305 // secondary is checked 306 // secondary is checked
306 if((0 < n && vd[0]->GetKineticEnergy() < s 307 if((0 < n && vd[0]->GetKineticEnergy() < secBiasedEnegryLimit[index])
307 || fDirectionalSplitting) { 308 || fDirectionalSplitting) {
308 309
309 G4int nsplit = nBremSplitting[index]; 310 G4int nsplit = nBremSplitting[index];
310 311
311 // Range cut 312 // Range cut
312 if(0 == nsplit) { 313 if(0 == nsplit) {
313 if(safety > fSafetyMin) { ApplyRangeCu 314 if(safety > fSafetyMin) { ApplyRangeCut(vd, track, eloss, safety); }
314 315
315 // Russian Roulette 316 // Russian Roulette
316 } else if(1 == nsplit) { 317 } else if(1 == nsplit) {
317 weight = ApplyRussianRoulette(vd, inde 318 weight = ApplyRussianRoulette(vd, index);
318 319
319 // Splitting 320 // Splitting
320 } else { 321 } else {
321 if (fDirectionalSplitting) { 322 if (fDirectionalSplitting) {
322 weight = ApplyDirectionalSplitting(v 323 weight = ApplyDirectionalSplitting(vd, track, currentModel, index, tcut);
323 } else { 324 } else {
324 G4double tmpEnergy = pPartChange->Ge 325 G4double tmpEnergy = pPartChange->GetProposedKineticEnergy();
325 G4ThreeVector tmpMomDir = pPartChang 326 G4ThreeVector tmpMomDir = pPartChange->GetProposedMomentumDirection();
326 327
327 weight = ApplySplitting(vd, track, c 328 weight = ApplySplitting(vd, track, currentModel, index, tcut);
328 329
329 pPartChange->SetProposedKineticEnerg 330 pPartChange->SetProposedKineticEnergy(tmpEnergy);
330 pPartChange->ProposeMomentumDirectio 331 pPartChange->ProposeMomentumDirection(tmpMomDir);
331 } 332 }
332 } 333 }
333 } 334 }
334 } 335 }
335 return weight; 336 return weight;
336 } 337 }
337 338
338 //....oooOO0OOooo........oooOO0OOooo........oo 339 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
339 340
340 G4double 341 G4double
341 G4EmBiasingManager::ApplySecondaryBiasing( 342 G4EmBiasingManager::ApplySecondaryBiasing(
342 std::vector<G4DynamicParticl 343 std::vector<G4DynamicParticle*>& vd,
343 const G4Track& track, 344 const G4Track& track,
344 G4VEmModel* currentModel, 345 G4VEmModel* currentModel,
345 G4ParticleChangeForGamma* pP 346 G4ParticleChangeForGamma* pPartChange,
346 G4double& eloss, 347 G4double& eloss,
347 G4int coupleIdx, 348 G4int coupleIdx,
348 G4double tcut, 349 G4double tcut,
349 G4double safety) 350 G4double safety)
350 { 351 {
351 G4int index = idxSecBiasedCouple[coupleIdx]; 352 G4int index = idxSecBiasedCouple[coupleIdx];
352 G4double weight = 1.; 353 G4double weight = 1.;
353 if(0 <= index) { 354 if(0 <= index) {
354 std::size_t n = vd.size(); << 355 size_t n = vd.size();
355 356
356 // the check cannot be applied per seconda 357 // the check cannot be applied per secondary particle
357 // because weight correction is common, so 358 // because weight correction is common, so the first
358 // secondary is checked 359 // secondary is checked
359 if((0 < n && vd[0]->GetKineticEnergy() < s 360 if((0 < n && vd[0]->GetKineticEnergy() < secBiasedEnegryLimit[index])
360 || fDirectionalSplitting) { 361 || fDirectionalSplitting) {
361 362
362 G4int nsplit = nBremSplitting[index]; 363 G4int nsplit = nBremSplitting[index];
363 364
364 // Range cut 365 // Range cut
365 if(0 == nsplit) { 366 if(0 == nsplit) {
366 if(safety > fSafetyMin) { ApplyRangeCu 367 if(safety > fSafetyMin) { ApplyRangeCut(vd, track, eloss, safety); }
367 368
368 // Russian Roulette 369 // Russian Roulette
369 } else if(1 == nsplit) { 370 } else if(1 == nsplit) {
370 weight = ApplyRussianRoulette(vd, inde 371 weight = ApplyRussianRoulette(vd, index);
371 372
372 // Splitting 373 // Splitting
373 } else { 374 } else {
374 if (fDirectionalSplitting) { 375 if (fDirectionalSplitting) {
375 weight = ApplyDirectionalSplitting(v 376 weight = ApplyDirectionalSplitting(vd, track, currentModel,
376 index, tcu 377 index, tcut, pPartChange);
377 } else { 378 } else {
378 G4double tmpEnergy = pPartChange->Ge 379 G4double tmpEnergy = pPartChange->GetProposedKineticEnergy();
379 G4ThreeVector tmpMomDir = pPartChang 380 G4ThreeVector tmpMomDir = pPartChange->GetProposedMomentumDirection();
380 381
381 weight = ApplySplitting(vd, track, c 382 weight = ApplySplitting(vd, track, currentModel, index, tcut);
382 383
383 pPartChange->SetProposedKineticEnerg 384 pPartChange->SetProposedKineticEnergy(tmpEnergy);
384 pPartChange->ProposeMomentumDirectio 385 pPartChange->ProposeMomentumDirection(tmpMomDir);
385 } 386 }
386 } 387 }
387 } 388 }
388 } 389 }
389 return weight; 390 return weight;
390 } 391 }
391 392
392 //....oooOO0OOooo........oooOO0OOooo........oo 393 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
393 394
394 G4double 395 G4double
395 G4EmBiasingManager::ApplySecondaryBiasing(std: 396 G4EmBiasingManager::ApplySecondaryBiasing(std::vector<G4Track*>& track,
396 G4in 397 G4int coupleIdx)
397 { 398 {
398 G4int index = idxSecBiasedCouple[coupleIdx]; 399 G4int index = idxSecBiasedCouple[coupleIdx];
399 G4double weight = 1.; 400 G4double weight = 1.;
400 if(0 <= index) { 401 if(0 <= index) {
401 std::size_t n = track.size(); << 402 size_t n = track.size();
402 403
403 // the check cannot be applied per seconda 404 // the check cannot be applied per secondary particle
404 // because weight correction is common, so 405 // because weight correction is common, so the first
405 // secondary is checked 406 // secondary is checked
406 if(0 < n && track[0]->GetKineticEnergy() < 407 if(0 < n && track[0]->GetKineticEnergy() < secBiasedEnegryLimit[index]) {
407 408
408 G4int nsplit = nBremSplitting[index]; 409 G4int nsplit = nBremSplitting[index];
409 410
410 // Russian Roulette only 411 // Russian Roulette only
411 if(1 == nsplit) { 412 if(1 == nsplit) {
412 weight = secBiasedWeight[index]; 413 weight = secBiasedWeight[index];
413 for(std::size_t k=0; k<n; ++k) { << 414 for(size_t k=0; k<n; ++k) {
414 if(G4UniformRand()*weight > 1.0) { 415 if(G4UniformRand()*weight > 1.0) {
415 const G4Track* t = track[k]; 416 const G4Track* t = track[k];
416 delete t; 417 delete t;
417 track[k] = nullptr; << 418 track[k] = 0;
418 } 419 }
419 } 420 }
420 } 421 }
421 } 422 }
422 } 423 }
423 return weight; 424 return weight;
424 } 425 }
425 426
426 //....oooOO0OOooo........oooOO0OOooo........oo 427 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
427 428
428 void 429 void
429 G4EmBiasingManager::ApplyRangeCut(std::vector< 430 G4EmBiasingManager::ApplyRangeCut(std::vector<G4DynamicParticle*>& vd,
430 const G4Trac 431 const G4Track& track,
431 G4double& el 432 G4double& eloss, G4double safety)
432 { 433 {
433 std::size_t n = vd.size(); << 434 size_t n = vd.size();
434 if(!eIonisation) { 435 if(!eIonisation) {
435 eIonisation = 436 eIonisation =
436 G4LossTableManager::Instance()->GetEnerg 437 G4LossTableManager::Instance()->GetEnergyLossProcess(theElectron);
437 } 438 }
438 if(eIonisation) { 439 if(eIonisation) {
439 for(std::size_t k=0; k<n; ++k) { << 440 for(size_t k=0; k<n; ++k) {
440 const G4DynamicParticle* dp = vd[k]; 441 const G4DynamicParticle* dp = vd[k];
441 if(dp->GetDefinition() == theElectron) { 442 if(dp->GetDefinition() == theElectron) {
442 G4double e = dp->GetKineticEnergy(); 443 G4double e = dp->GetKineticEnergy();
443 if(eIonisation->GetRange(e, track.GetM 444 if(eIonisation->GetRange(e, track.GetMaterialCutsCouple()) < safety) {
444 eloss += e; 445 eloss += e;
445 delete dp; 446 delete dp;
446 vd[k] = nullptr; << 447 vd[k] = 0;
447 } 448 }
448 } 449 }
449 } 450 }
450 } 451 }
451 } 452 }
452 453
453 //....oooOO0OOooo........oooOO0OOooo........oo 454 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
454 455
455 G4bool G4EmBiasingManager::CheckDirection(G4Th 456 G4bool G4EmBiasingManager::CheckDirection(G4ThreeVector pos,
456 G4Th 457 G4ThreeVector momdir) const
457 { 458 {
458 G4ThreeVector delta = fDirectionalSplittingT 459 G4ThreeVector delta = fDirectionalSplittingTarget - pos;
459 G4double angle = momdir.angle(delta); 460 G4double angle = momdir.angle(delta);
460 G4double dist = delta.cross(momdir).mag(); 461 G4double dist = delta.cross(momdir).mag();
461 if (dist <= fDirectionalSplittingRadius && a 462 if (dist <= fDirectionalSplittingRadius && angle < halfpi) {
462 return true; 463 return true;
463 } 464 }
464 return false; 465 return false;
465 } 466 }
466 467
467 //....oooOO0OOooo........oooOO0OOooo........oo 468 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
468 469
469 G4double 470 G4double
470 G4EmBiasingManager::ApplySplitting(std::vector 471 G4EmBiasingManager::ApplySplitting(std::vector<G4DynamicParticle*>& vd,
471 const G4Tra 472 const G4Track& track,
472 G4VEmModel* 473 G4VEmModel* currentModel,
473 G4int index 474 G4int index,
474 G4double tc 475 G4double tcut)
475 { 476 {
476 // method is applied only if 1 secondary cre 477 // method is applied only if 1 secondary created PostStep
477 // in the case of many secondaries there is 478 // in the case of many secondaries there is a contradiction
478 G4double weight = 1.; 479 G4double weight = 1.;
479 std::size_t n = vd.size(); << 480 size_t n = vd.size();
480 G4double w = secBiasedWeight[index]; 481 G4double w = secBiasedWeight[index];
481 482
482 if(1 != n || 1.0 <= w) { return weight; } 483 if(1 != n || 1.0 <= w) { return weight; }
483 484
484 G4double trackWeight = track.GetWeight(); 485 G4double trackWeight = track.GetWeight();
485 const G4DynamicParticle* dynParticle = track 486 const G4DynamicParticle* dynParticle = track.GetDynamicParticle();
486 487
487 G4int nsplit = nBremSplitting[index]; 488 G4int nsplit = nBremSplitting[index];
488 489
489 // double splitting is suppressed 490 // double splitting is suppressed
490 if(1 < nsplit && trackWeight>w) { 491 if(1 < nsplit && trackWeight>w) {
491 492
492 weight = w; 493 weight = w;
493 if(nsplit > (G4int)tmpSecondaries.size()) 494 if(nsplit > (G4int)tmpSecondaries.size()) {
494 tmpSecondaries.reserve(nsplit); 495 tmpSecondaries.reserve(nsplit);
495 } 496 }
496 const G4MaterialCutsCouple* couple = track 497 const G4MaterialCutsCouple* couple = track.GetMaterialCutsCouple();
497 // start from 1, because already one secon 498 // start from 1, because already one secondary created
498 for(G4int k=1; k<nsplit; ++k) { 499 for(G4int k=1; k<nsplit; ++k) {
499 tmpSecondaries.clear(); 500 tmpSecondaries.clear();
500 currentModel->SampleSecondaries(&tmpSeco 501 currentModel->SampleSecondaries(&tmpSecondaries, couple, dynParticle,
501 tcut); 502 tcut);
502 for (std::size_t kk=0; kk<tmpSecondaries << 503 for (size_t kk=0; kk<tmpSecondaries.size(); ++kk) {
503 vd.push_back(tmpSecondaries[kk]); 504 vd.push_back(tmpSecondaries[kk]);
504 } 505 }
505 } 506 }
506 } 507 }
507 return weight; 508 return weight;
508 } 509 }
509 510
510 //....oooOO0OOooo........oooOO0OOooo........oo 511 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
511 512
512 G4double 513 G4double
513 G4EmBiasingManager::ApplyDirectionalSplitting( 514 G4EmBiasingManager::ApplyDirectionalSplitting(
514 std::vector 515 std::vector<G4DynamicParticle*>& vd,
515 const G4Tra 516 const G4Track& track,
516 G4VEmModel* 517 G4VEmModel* currentModel,
517 G4int index 518 G4int index,
518 G4double tc 519 G4double tcut,
519 G4ParticleC 520 G4ParticleChangeForGamma* partChange)
520 { 521 {
521 // primary is gamma. do splitting/RR as appr 522 // primary is gamma. do splitting/RR as appropriate
522 // method applied for any number of secondar 523 // method applied for any number of secondaries
523 524
524 G4double weight = 1.0; 525 G4double weight = 1.0;
525 G4double w = secBiasedWeight[index]; 526 G4double w = secBiasedWeight[index];
526 527
527 fDirectionalSplittingWeights.clear(); 528 fDirectionalSplittingWeights.clear();
528 if(1.0 <= w) { 529 if(1.0 <= w) {
529 fDirectionalSplittingWeights.push_back(wei 530 fDirectionalSplittingWeights.push_back(weight);
530 return weight; 531 return weight;
531 } 532 }
532 533
533 G4double trackWeight = track.GetWeight(); 534 G4double trackWeight = track.GetWeight();
534 G4int nsplit = nBremSplitting[index]; 535 G4int nsplit = nBremSplitting[index];
535 536
536 // double splitting is suppressed 537 // double splitting is suppressed
537 if(1 < nsplit && trackWeight>w) { 538 if(1 < nsplit && trackWeight>w) {
538 539
539 weight = w; 540 weight = w;
540 const G4ThreeVector pos = track.GetPositio 541 const G4ThreeVector pos = track.GetPosition();
541 542
542 G4bool foundPrimaryParticle = false; 543 G4bool foundPrimaryParticle = false;
543 G4double primaryEnergy = 0.; 544 G4double primaryEnergy = 0.;
544 G4ThreeVector primaryMomdir(0.,0.,0.); 545 G4ThreeVector primaryMomdir(0.,0.,0.);
545 G4double primaryWeight = trackWeight; 546 G4double primaryWeight = trackWeight;
546 547
547 tmpSecondaries = vd; 548 tmpSecondaries = vd;
548 vd.clear(); 549 vd.clear();
549 vd.reserve(nsplit); 550 vd.reserve(nsplit);
550 for (G4int k=0; k<nsplit; ++k) { 551 for (G4int k=0; k<nsplit; ++k) {
551 if (k>0) { // for k==0, SampleSecondari 552 if (k>0) { // for k==0, SampleSecondaries has already been called
552 tmpSecondaries.clear(); 553 tmpSecondaries.clear();
553 // SampleSecondaries modifies primary 554 // SampleSecondaries modifies primary info stored in partChange
554 currentModel->SampleSecondaries(&tmpSe 555 currentModel->SampleSecondaries(&tmpSecondaries,
555 track. 556 track.GetMaterialCutsCouple(),
556 track. 557 track.GetDynamicParticle(), tcut);
557 } 558 }
558 for (std::size_t kk=0; kk<tmpSecondaries << 559 for (size_t kk=0; kk<tmpSecondaries.size(); ++kk) {
559 if (tmpSecondaries[kk]->GetParticleDef 560 if (tmpSecondaries[kk]->GetParticleDefinition() == theGamma) {
560 if (CheckDirection(pos, tmpSecondari 561 if (CheckDirection(pos, tmpSecondaries[kk]->GetMomentumDirection())){
561 vd.push_back(tmpSecondaries[kk]); 562 vd.push_back(tmpSecondaries[kk]);
562 fDirectionalSplittingWeights.push_ 563 fDirectionalSplittingWeights.push_back(1.);
563 } else if (G4UniformRand() < w) { 564 } else if (G4UniformRand() < w) {
564 vd.push_back(tmpSecondaries[kk]); 565 vd.push_back(tmpSecondaries[kk]);
565 fDirectionalSplittingWeights.push_ 566 fDirectionalSplittingWeights.push_back(1./weight);
566 } else { 567 } else {
567 delete tmpSecondaries[kk]; 568 delete tmpSecondaries[kk];
568 tmpSecondaries[kk] = nullptr; 569 tmpSecondaries[kk] = nullptr;
569 } 570 }
570 } else if (k==0) { // keep charged 2ry 571 } else if (k==0) { // keep charged 2ry from first splitting
571 vd.push_back(tmpSecondaries[kk]); 572 vd.push_back(tmpSecondaries[kk]);
572 fDirectionalSplittingWeights.push_ba 573 fDirectionalSplittingWeights.push_back(1./weight);
573 } else { 574 } else {
574 delete tmpSecondaries[kk]; 575 delete tmpSecondaries[kk];
575 tmpSecondaries[kk] = nullptr; 576 tmpSecondaries[kk] = nullptr;
576 } 577 }
577 } 578 }
578 579
579 // primary 580 // primary
580 G4double en = partChange->GetProposedKin 581 G4double en = partChange->GetProposedKineticEnergy();
581 if (en>0.) { // don't add if kinetic ene 582 if (en>0.) { // don't add if kinetic energy = 0
582 G4ThreeVector momdir = partChange->Get 583 G4ThreeVector momdir = partChange->GetProposedMomentumDirection();
583 if (CheckDirection(pos,momdir)) { 584 if (CheckDirection(pos,momdir)) {
584 // keep only one primary; others are 585 // keep only one primary; others are secondaries
585 if (!foundPrimaryParticle) { 586 if (!foundPrimaryParticle) {
586 primaryEnergy = en; 587 primaryEnergy = en;
587 primaryMomdir = momdir; 588 primaryMomdir = momdir;
588 foundPrimaryParticle = true; 589 foundPrimaryParticle = true;
589 primaryWeight = weight; 590 primaryWeight = weight;
590 } else { 591 } else {
591 auto dp = new G4DynamicParticle(th << 592 G4DynamicParticle* dp = new G4DynamicParticle(theGamma,
592 partChange->GetPropo << 593 partChange->GetProposedMomentumDirection(),
593 partChange->GetPropo << 594 partChange->GetProposedKineticEnergy());
594 vd.push_back(dp); 595 vd.push_back(dp);
595 fDirectionalSplittingWeights.push_ 596 fDirectionalSplittingWeights.push_back(1.);
596 } 597 }
597 } else if (G4UniformRand()<w) { // not 598 } else if (G4UniformRand()<w) { // not going to target. play RR.
598 if (!foundPrimaryParticle) { 599 if (!foundPrimaryParticle) {
599 foundPrimaryParticle = true; 600 foundPrimaryParticle = true;
600 primaryEnergy = en; 601 primaryEnergy = en;
601 primaryMomdir = momdir; 602 primaryMomdir = momdir;
602 primaryWeight = 1.; 603 primaryWeight = 1.;
603 } else { 604 } else {
604 auto dp = new G4DynamicParticle(th << 605 G4DynamicParticle* dp = new G4DynamicParticle(theGamma,
605 partChange->GetPropo << 606 partChange->GetProposedMomentumDirection(),
606 partChange->GetPropo << 607 partChange->GetProposedKineticEnergy());
607 vd.push_back(dp); 608 vd.push_back(dp);
608 fDirectionalSplittingWeights.push_ 609 fDirectionalSplittingWeights.push_back(1./weight);
609 } 610 }
610 } 611 }
611 } 612 }
612 } // end of loop over nsplit 613 } // end of loop over nsplit
613 614
614 partChange->ProposeWeight(primaryWeight); 615 partChange->ProposeWeight(primaryWeight);
615 partChange->SetProposedKineticEnergy(prima 616 partChange->SetProposedKineticEnergy(primaryEnergy);
616 partChange->ProposeMomentumDirection(prima 617 partChange->ProposeMomentumDirection(primaryMomdir);
617 } else { 618 } else {
618 for (std::size_t i = 0; i < vd.size(); ++i << 619 for (size_t i = 0; i < vd.size(); ++i) {
619 fDirectionalSplittingWeights.push_back(1 620 fDirectionalSplittingWeights.push_back(1.);
620 } 621 }
621 } 622 }
622 623
623 return weight; 624 return weight;
624 } 625 }
625 626
626 //....oooOO0OOooo........oooOO0OOooo........oo 627 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
627 628
628 G4double G4EmBiasingManager::GetWeight(G4int i 629 G4double G4EmBiasingManager::GetWeight(G4int i)
629 { 630 {
630 // normally return 1. If a directionally spl 631 // normally return 1. If a directionally split particle survives RR,
631 // return 1./(splitting factor) 632 // return 1./(splitting factor)
632 if (fDirectionalSplittingWeights.size() >= ( 633 if (fDirectionalSplittingWeights.size() >= (unsigned int)(i+1) ) {
633 G4double w = fDirectionalSplittingWeights[ 634 G4double w = fDirectionalSplittingWeights[i];
634 fDirectionalSplittingWeights[i] = 1.; // e 635 fDirectionalSplittingWeights[i] = 1.; // ensure it's not used again
635 return w; 636 return w;
636 } else { 637 } else {
637 return 1.; 638 return 1.;
638 } 639 }
639 } 640 }
640 641
641 G4double 642 G4double
642 G4EmBiasingManager::ApplyDirectionalSplitting( 643 G4EmBiasingManager::ApplyDirectionalSplitting(
643 std::vector< 644 std::vector<G4DynamicParticle*>& vd,
644 const G4Trac 645 const G4Track& track,
645 G4VEmModel* 646 G4VEmModel* currentModel,
646 G4int index, 647 G4int index,
647 G4double tcu 648 G4double tcut)
648 { 649 {
649 // primary is not a gamma. Do nothing with p 650 // primary is not a gamma. Do nothing with primary
650 651
651 G4double weight = 1.0; 652 G4double weight = 1.0;
652 G4double w = secBiasedWeight[index]; 653 G4double w = secBiasedWeight[index];
653 654
654 fDirectionalSplittingWeights.clear(); 655 fDirectionalSplittingWeights.clear();
655 if(1.0 <= w) { 656 if(1.0 <= w) {
656 fDirectionalSplittingWeights.push_back(wei 657 fDirectionalSplittingWeights.push_back(weight);
657 return weight; 658 return weight;
658 } 659 }
659 660
660 G4double trackWeight = track.GetWeight(); 661 G4double trackWeight = track.GetWeight();
661 G4int nsplit = nBremSplitting[index]; 662 G4int nsplit = nBremSplitting[index];
662 663
663 // double splitting is suppressed 664 // double splitting is suppressed
664 if(1 < nsplit && trackWeight>w) { 665 if(1 < nsplit && trackWeight>w) {
665 666
666 weight = w; 667 weight = w;
667 const G4ThreeVector pos = track.GetPositio 668 const G4ThreeVector pos = track.GetPosition();
668 669
669 tmpSecondaries = vd; 670 tmpSecondaries = vd;
670 vd.clear(); 671 vd.clear();
671 vd.reserve(nsplit); 672 vd.reserve(nsplit);
672 for (G4int k=0; k<nsplit; ++k) { 673 for (G4int k=0; k<nsplit; ++k) {
673 if (k>0) { 674 if (k>0) {
674 tmpSecondaries.clear(); 675 tmpSecondaries.clear();
675 currentModel->SampleSecondaries(&tmpSe 676 currentModel->SampleSecondaries(&tmpSecondaries,
676 track. 677 track.GetMaterialCutsCouple(),
677 track. 678 track.GetDynamicParticle(), tcut);
678 } 679 }
679 //for (auto sec : tmpSecondaries) { 680 //for (auto sec : tmpSecondaries) {
680 for (std::size_t kk=0; kk < tmpSecondari << 681 for (size_t kk=0; kk < tmpSecondaries.size(); ++kk) {
681 if (CheckDirection(pos, tmpSecondaries 682 if (CheckDirection(pos, tmpSecondaries[kk]->GetMomentumDirection())) {
682 vd.push_back(tmpSecondaries[kk]); 683 vd.push_back(tmpSecondaries[kk]);
683 fDirectionalSplittingWeights.push_ba 684 fDirectionalSplittingWeights.push_back(1.);
684 } else if (G4UniformRand()<w) { 685 } else if (G4UniformRand()<w) {
685 vd.push_back(tmpSecondaries[kk]); 686 vd.push_back(tmpSecondaries[kk]);
686 fDirectionalSplittingWeights.push_ba 687 fDirectionalSplittingWeights.push_back(1./weight);
687 } else { 688 } else {
688 delete tmpSecondaries[kk]; 689 delete tmpSecondaries[kk];
689 tmpSecondaries[kk] = nullptr; 690 tmpSecondaries[kk] = nullptr;
690 } 691 }
691 } 692 }
692 } // end of loop over nsplit 693 } // end of loop over nsplit
693 } else { // no splitting was done; still nee 694 } else { // no splitting was done; still need weights
694 for (std::size_t i = 0; i < vd.size(); ++i << 695 for (size_t i = 0; i < vd.size(); ++i) {
695 fDirectionalSplittingWeights.push_back(1 696 fDirectionalSplittingWeights.push_back(1.0);
696 } 697 }
697 } 698 }
698 return weight; 699 return weight;
699 } 700 }
700 701