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