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25 // 22 //
26 // 23 //
>> 24 // $Id: G4Decay.cc,v 1.11 2001/08/22 08:12:39 kurasige Exp $
>> 25 // GEANT4 tag $Name: geant4-04-00 $
27 // 26 //
28 // 27 //
29 // ------------------------------------------- 28 // --------------------------------------------------------------
30 // GEANT 4 class implementation file 29 // GEANT 4 class implementation file
31 // 30 //
32 // History: first implementation, based o 31 // History: first implementation, based on object model of
33 // 2nd December 1995, G.Cosmo 32 // 2nd December 1995, G.Cosmo
34 // 7 July 1996 H.Kurashige 33 // 7 July 1996 H.Kurashige
35 // ------------------------------------------- 34 // ------------------------------------------------------------
36 // remove BuildPhysicsTable() 28 Nov. 1997 35 // remove BuildPhysicsTable() 28 Nov. 1997 H.Kurashige
37 // change DBL_EPSIRON to DBL_MIN 14 Dec. 19 36 // change DBL_EPSIRON to DBL_MIN 14 Dec. 1997 H.Kurashige
38 // modified for new ParticleChange 12 Mar. 1 37 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
39 // modified for "GoodForTrackingFlag" 19 Jun 38 // modified for "GoodForTrackingFlag" 19 June 1998 H.Kurashige
40 // rename thePhysicsTable to aPhyscisTable 2 39 // rename thePhysicsTable to aPhyscisTable 2 Aug. 1998 H.Kurashige
41 // modified IsApplicable in order to protect 40 // modified IsApplicable in order to protect the decay from registered
42 // to resonances 12 Dec. 1998 H.Kurashi 41 // to resonances 12 Dec. 1998 H.Kurashige
43 // remove G4ParticleMomentum 6 Feb. 99 H.Ku 42 // remove G4ParticleMomentum 6 Feb. 99 H.Kurashige
44 // modified IsApplicable to activate G4Deca 43 // modified IsApplicable to activate G4Decay for resonances 1 Mar. 00 H.Kurashige
45 // Add External Decayer 23 Feb. 2001 44 // Add External Decayer 23 Feb. 2001 H.Kurashige
46 // change LowestBinValue,HighestBinValue and <<
47 // 45 //
48 46
49 #include "G4Decay.hh" 47 #include "G4Decay.hh"
50 <<
51 #include "G4PhysicalConstants.hh" <<
52 #include "G4SystemOfUnits.hh" <<
53 #include "G4DynamicParticle.hh" 48 #include "G4DynamicParticle.hh"
54 #include "G4DecayProducts.hh" 49 #include "G4DecayProducts.hh"
55 #include "G4DecayTable.hh" 50 #include "G4DecayTable.hh"
56 #include "G4VDecayChannel.hh" <<
57 #include "G4PhysicsLogVector.hh" 51 #include "G4PhysicsLogVector.hh"
58 #include "G4ParticleChangeForDecay.hh" 52 #include "G4ParticleChangeForDecay.hh"
59 #include "G4VExtDecayer.hh" 53 #include "G4VExtDecayer.hh"
60 54
61 // constructor 55 // constructor
62 G4Decay::G4Decay(const G4String& processName) 56 G4Decay::G4Decay(const G4String& processName)
63 :G4VRestDiscret 57 :G4VRestDiscreteProcess(processName, fDecay),
64 verboseLevel(1), 58 verboseLevel(1),
65 HighestValue(2 << 59 LowestBinValue(1.0e-3),
66 fRemainderLifeTime(-1.0), << 60 HighestBinValue(10.0),
67 pExtDecayer(nu << 61 TotBin(200),
>> 62 aPhysicsTable(0),
>> 63 pExtDecayer(0)
68 { 64 {
69 // set Process Sub Type <<
70 SetProcessSubType(static_cast<int>(DECAY)); <<
71 <<
72 #ifdef G4VERBOSE 65 #ifdef G4VERBOSE
73 if (GetVerboseLevel()>1) { 66 if (GetVerboseLevel()>1) {
74 G4cout << "G4Decay constructor " << " Na << 67 G4cerr << "G4Decay constructor " << " Name:" << processName << G4endl;
75 } 68 }
76 #endif 69 #endif
77 <<
78 pParticleChange = &fParticleChangeForDecay; 70 pParticleChange = &fParticleChangeForDecay;
79 } 71 }
80 72
81 G4Decay::~G4Decay() 73 G4Decay::~G4Decay()
82 { 74 {
83 if (pExtDecayer != nullptr) { << 75 if (aPhysicsTable != 0) {
>> 76 aPhysicsTable->clearAndDestroy();
>> 77 delete aPhysicsTable;
>> 78 }
>> 79 if (pExtDecayer) {
84 delete pExtDecayer; 80 delete pExtDecayer;
85 } 81 }
86 } 82 }
87 83
88 G4bool G4Decay::IsApplicable(const G4ParticleD 84 G4bool G4Decay::IsApplicable(const G4ParticleDefinition& aParticleType)
89 { 85 {
90 // check if the particle is stable? 86 // check if the particle is stable?
91 if (aParticleType.GetPDGLifeTime() <0.0) { 87 if (aParticleType.GetPDGLifeTime() <0.0) {
92 return false; 88 return false;
93 } else if (aParticleType.GetPDGMass() <= 0. 89 } else if (aParticleType.GetPDGMass() <= 0.0*MeV) {
94 return false; 90 return false;
95 } else { 91 } else {
96 return true; 92 return true;
97 } 93 }
98 } 94 }
99 95
100 G4double G4Decay::GetMeanLifeTime(const G4Trac << 96 G4double G4Decay::GetMeanLifeTime(const G4Track& aTrack,
101 G4ForceCondi 97 G4ForceCondition*)
102 { 98 {
>> 99 // get particle type
>> 100 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
>> 101
103 // returns the mean free path in GEANT4 int 102 // returns the mean free path in GEANT4 internal units
104 G4double meanlife; 103 G4double meanlife;
105 << 104 G4ParticleDefinition* aParticleDef = aParticle->GetDefinition();
106 // get particle <<
107 const G4DynamicParticle* aParticle = aTrack <<
108 const G4ParticleDefinition* aParticleDef = <<
109 G4double aLife = aParticleDef->GetPDGLifeTi 105 G4double aLife = aParticleDef->GetPDGLifeTime();
110 106
>> 107 #ifdef G4VERBOSE
>> 108 if (GetVerboseLevel()>1) {
>> 109 G4cerr << "G4Decay::GetMeanLifeTime() "<< G4endl;
>> 110 G4cerr << "KineticEnergy:" << aParticle->GetKineticEnergy()/GeV <<"[GeV]";
>> 111 G4cerr << "Mass:" << aParticle->GetMass()/GeV <<"[GeV]";
>> 112 G4cerr << "Life time: "<< aLife/ns << "[ns]" << G4endl;
>> 113 }
>> 114 #endif
>> 115
111 // check if the particle is stable? 116 // check if the particle is stable?
112 if (aParticleDef->GetPDGStable()) { 117 if (aParticleDef->GetPDGStable()) {
113 //1000000 times the life time of the unive << 118 meanlife = DBL_MAX;
114 meanlife = 1e24 * s; <<
115 119
>> 120 } else if (aLife < 0.0) {
>> 121 meanlife = DBL_MAX;
>> 122
116 } else { 123 } else {
117 meanlife = aLife; 124 meanlife = aLife;
118 } 125 }
119 126
120 #ifdef G4VERBOSE 127 #ifdef G4VERBOSE
121 if (GetVerboseLevel()>1) { 128 if (GetVerboseLevel()>1) {
122 G4cout << "mean life time: "<< meanlife/n << 129 G4cerr << "mean life time: "<< meanlife/ns << "[ns]" << G4endl;
123 } 130 }
124 #endif 131 #endif
125 132
126 return meanlife; 133 return meanlife;
127 } 134 }
128 135
129 G4double G4Decay::GetMeanFreePath(const G4Trac 136 G4double G4Decay::GetMeanFreePath(const G4Track& aTrack,G4double, G4ForceCondition*)
130 { 137 {
>> 138 // constants
>> 139 G4bool isOutRange ;
>> 140
131 // get particle 141 // get particle
132 const G4DynamicParticle* aParticle = aTrack 142 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
133 const G4ParticleDefinition* aParticleDef = <<
134 G4double aMass = aParticle->GetMass(); <<
135 G4double aLife = aParticleDef->GetPDGLifeTi <<
136 143
137 << 144 // returns the mean free path in GEANT4 internal units
138 // returns the mean free path in GEANT4 in <<
139 G4double pathlength; 145 G4double pathlength;
140 G4double aCtau = c_light * aLife; << 146 G4ParticleDefinition* aParticleDef = aParticle->GetDefinition();
>> 147 G4double aCtau = c_light * aParticleDef->GetPDGLifeTime();
>> 148 G4double aMass = aParticle->GetMass();
>> 149
>> 150 #ifdef G4VERBOSE
>> 151 if (GetVerboseLevel()>1) {
>> 152 G4cerr << "G4Decay::GetMeanFreePath() "<< G4endl;
>> 153 G4cerr << "KineticEnergy:" << aParticle->GetKineticEnergy()/GeV <<"[GeV]";
>> 154 G4cerr << "Mass:" << aMass/GeV <<"[GeV]";
>> 155 G4cerr << "c*Tau:" << aCtau/m <<"[m]" <<G4endl;
>> 156 }
>> 157 #endif
141 158
142 // check if the particle is stable? 159 // check if the particle is stable?
143 if (aParticleDef->GetPDGStable()) { 160 if (aParticleDef->GetPDGStable()) {
144 pathlength = DBL_MAX; 161 pathlength = DBL_MAX;
145 162
>> 163 } else if (aCtau < 0.0) {
>> 164 pathlength = DBL_MAX;
>> 165
146 //check if the particle has very short life 166 //check if the particle has very short life time ?
147 } else if (aCtau < DBL_MIN) { 167 } else if (aCtau < DBL_MIN) {
148 pathlength = DBL_MIN; 168 pathlength = DBL_MIN;
149 169
>> 170 //check if zero mass
>> 171 } else if (aMass < DBL_MIN) {
>> 172 pathlength = DBL_MAX;
>> 173 #ifdef G4VERBOSE
>> 174 if (GetVerboseLevel()>1) {
>> 175 G4cerr << " Zero Mass particle " << G4endl;
>> 176 }
>> 177 #endif
150 } else { 178 } else {
151 //calculate the mean free path 179 //calculate the mean free path
152 // by using normalized kinetic energy (= E 180 // by using normalized kinetic energy (= Ekin/mass)
153 G4double rKineticEnergy = aParticle->Ge 181 G4double rKineticEnergy = aParticle->GetKineticEnergy()/aMass;
154 if ( rKineticEnergy > HighestValue) { << 182 if ( rKineticEnergy > HighestBinValue) {
155 // gamma >> 1 << 183 // beta >> 1
156 pathlength = ( rKineticEnergy + 1.0)* a 184 pathlength = ( rKineticEnergy + 1.0)* aCtau;
>> 185 } else if ( rKineticEnergy > LowestBinValue) {
>> 186 // check if aPhysicsTable exists
>> 187 if (aPhysicsTable == NULL) BuildPhysicsTable(*aParticleDef);
>> 188 // beta is in the range valid for PhysicsTable
>> 189 pathlength = aCtau *
>> 190 ((*aPhysicsTable)(0))-> GetValue(rKineticEnergy,isOutRange);
157 } else if ( rKineticEnergy < DBL_MIN ) { 191 } else if ( rKineticEnergy < DBL_MIN ) {
158 // too slow particle 192 // too slow particle
159 #ifdef G4VERBOSE 193 #ifdef G4VERBOSE
160 if (GetVerboseLevel()>1) { 194 if (GetVerboseLevel()>1) {
161 G4cout << "G4Decay::GetMeanFreePath() !!p << 195 G4cerr << "G4Decay::GetMeanFreePath() !!particle stops!!";
162 G4cout << aParticleDef->GetParticleNa << 196 G4cerr << aParticleDef->GetParticleName() << G4endl;
163 G4cout << "KineticEnergy:" << aParticle->Ge << 197 G4cerr << "KineticEnergy:" << aParticle->GetKineticEnergy()/GeV <<"[GeV]";
164 } 198 }
165 #endif 199 #endif
166 pathlength = DBL_MIN; 200 pathlength = DBL_MIN;
167 } else { 201 } else {
168 // beta <1 << 202 // beta << 1
169 pathlength = (aParticle->GetTotalMoment 203 pathlength = (aParticle->GetTotalMomentum())/aMass*aCtau ;
170 } 204 }
171 } 205 }
172 return pathlength; << 206 #ifdef G4VERBOSE
>> 207 if (GetVerboseLevel()>1) {
>> 208 G4cerr << "mean free path: "<< pathlength/m << "[m]" << G4endl;
>> 209 }
>> 210 #endif
>> 211 return pathlength;
173 } 212 }
174 213
175 void G4Decay::BuildPhysicsTable(const G4Partic 214 void G4Decay::BuildPhysicsTable(const G4ParticleDefinition&)
176 { 215 {
177 return; << 216 // if aPhysicsTableis has already been created, do nothing
>> 217 if (aPhysicsTable != NULL) return;
>> 218
>> 219 // create aPhysicsTable
>> 220 if (GetVerboseLevel()>1) G4cerr <<" G4Decay::BuildPhysicsTable() "<< G4endl;
>> 221 aPhysicsTable = new G4PhysicsTable(1);
>> 222
>> 223 //create physics vector
>> 224 G4PhysicsLogVector* aVector = new G4PhysicsLogVector(
>> 225 LowestBinValue,
>> 226 HighestBinValue,
>> 227 TotBin);
>> 228
>> 229 G4double beta, gammainv;
>> 230 // fill physics Vector
>> 231 G4int i;
>> 232 for ( i = 0 ; i < TotBin ; i++ ) {
>> 233 gammainv = 1.0/(aVector->GetLowEdgeEnergy(i) + 1.0);
>> 234 beta = sqrt((1.0 - gammainv)*(1.0 +gammainv));
>> 235 aVector->PutValue(i, beta/gammainv);
>> 236 }
>> 237 aPhysicsTable->insert(aVector);
178 } 238 }
179 239
180 G4VParticleChange* G4Decay::DecayIt(const G4Tr 240 G4VParticleChange* G4Decay::DecayIt(const G4Track& aTrack, const G4Step& )
181 { 241 {
182 // The DecayIt() method returns by pointer a 242 // The DecayIt() method returns by pointer a particle-change object.
183 // Units are expressed in GEANT4 internal un 243 // Units are expressed in GEANT4 internal units.
184 244
185 // Initialize ParticleChange 245 // Initialize ParticleChange
186 // all members of G4VParticleChange are 246 // all members of G4VParticleChange are set to equal to
187 // corresponding member in G4Track 247 // corresponding member in G4Track
188 fParticleChangeForDecay.Initialize(aTrack); 248 fParticleChangeForDecay.Initialize(aTrack);
189 249
190 // get particle 250 // get particle
191 const G4DynamicParticle* aParticle = aTrack. 251 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
192 const G4ParticleDefinition* aParticleDef = a << 252 G4ParticleDefinition* aParticleDef = aParticle->GetDefinition();
193 253
194 // check if the particle is stable 254 // check if the particle is stable
195 if (aParticleDef->GetPDGStable()) return &fP 255 if (aParticleDef->GetPDGStable()) return &fParticleChangeForDecay ;
196 256
197 257
198 //check if thePreAssignedDecayProducts exist 258 //check if thePreAssignedDecayProducts exists
199 const G4DecayProducts* o_products = (aPartic 259 const G4DecayProducts* o_products = (aParticle->GetPreAssignedDecayProducts());
200 G4bool isPreAssigned = (o_products != nullpt << 260 G4bool isPreAssigned = (o_products != 0);
201 G4DecayProducts* products = nullptr; << 261 G4DecayProducts* products = 0;
202 262
203 // decay table 263 // decay table
204 G4DecayTable *decaytable = aParticleDef->G 264 G4DecayTable *decaytable = aParticleDef->GetDecayTable();
205 265
206 // check if external decayer exists 266 // check if external decayer exists
207 G4bool isExtDecayer = (decaytable == nullptr << 267 G4bool isExtDecayer = (decaytable == 0) && (pExtDecayer !=0);
208 268
209 // Error due to NO Decay Table 269 // Error due to NO Decay Table
210 if ( (decaytable == nullptr) && !isExtDecaye << 270 if ( (decaytable == 0) && !isExtDecayer &&!isPreAssigned ){
>> 271 #ifdef G4VERBOSE
211 if (GetVerboseLevel()>0) { 272 if (GetVerboseLevel()>0) {
212 G4cout << "G4Decay::DoIt : decay table << 273 G4cerr << "G4Decay::DoIt : decay table not defined for ";
213 G4cout << aParticle->GetDefinition()->Ge << 274 G4cerr << aParticle->GetDefinition()->GetParticleName()<< G4endl;
214 } 275 }
215 G4ExceptionDescription ed; << 276 #endif
216 ed << "For " << aParticle->GetDefinition() <<
217 << " decay probability exist but decay <<
218 << "- the particle will be killed;\n" <<
219 << " isExtDecayer: " << isExtDecayer <<
220 << "; isPreAssigned: " << isPreAssigned <<
221 G4Exception( "G4Decay::DecayIt ", <<
222 "DECAY101",JustWarning, ed); <<
223 <<
224 fParticleChangeForDecay.SetNumberOfSeconda 277 fParticleChangeForDecay.SetNumberOfSecondaries(0);
225 // Kill the parent particle 278 // Kill the parent particle
226 fParticleChangeForDecay.ProposeTrackStatus << 279 fParticleChangeForDecay.SetStatusChange( fStopAndKill ) ;
227 fParticleChangeForDecay.ProposeLocalEnergy << 280 fParticleChangeForDecay.SetLocalEnergyDeposit(0.0);
228 281
229 ClearNumberOfInteractionLengthLeft(); 282 ClearNumberOfInteractionLengthLeft();
230 return &fParticleChangeForDecay ; 283 return &fParticleChangeForDecay ;
231 } 284 }
232 285
233 if (isPreAssigned) { 286 if (isPreAssigned) {
234 // copy decay products 287 // copy decay products
235 products = new G4DecayProducts(*o_products 288 products = new G4DecayProducts(*o_products);
236 } else if ( isExtDecayer ) { 289 } else if ( isExtDecayer ) {
237 // decay according to external decayer 290 // decay according to external decayer
238 products = pExtDecayer->ImportDecayProduct 291 products = pExtDecayer->ImportDecayProducts(aTrack);
239 } else { 292 } else {
240 // Decay according to decay table. << 293 // decay acoording to decay table
241 // Keep trying to choose a candidate decay << 294 // choose a decay channel
242 // of the decaying particle is below the s << 295 G4VDecayChannel *decaychannel = decaytable->SelectADecayChannel();
243 // candidate daughter particles. << 296 if (decaychannel == 0 ){
244 // This is needed because the decay table <<
245 // the assumption of nominal PDG masses, b <<
246 // a dynamic masses well below its nominal <<
247 // some of its decay channels can be below <<
248 // Note that, for simplicity, we ignore he <<
249 // one or more of the candidate daughter p <<
250 // wide resonance. However, if this is the <<
251 // accepted, then the masses of the resona <<
252 // be sampled by taking into account their <<
253 G4VDecayChannel* decaychannel = nullptr; <<
254 G4double massParent = aParticle->GetMass() <<
255 decaychannel = decaytable->SelectADecayCha <<
256 if ( decaychannel == nullptr) { <<
257 // decay channel not found 297 // decay channel not found
258 G4ExceptionDescription ed; << 298 G4Exception("G4Decay::DoIt : can not determine decay channel ");
259 ed << "Can not determine decay channel f <<
260 << aParticleDef->GetParticleName() << G4end <<
261 << " mass of dynamic particle: " <<
262 << massParent/GeV << " (GEV)" << G4endl <<
263 << " dacay table has " << decaytable->entr <<
264 << " entries" << G4endl; <<
265 G4double checkedmass=massParent; <<
266 if (massParent < 0.) { <<
267 checkedmass=aParticleDef->GetPDGMass(); <<
268 ed << "Using PDG mass ("<<checkedmass/GeV <<
269 << "(GeV)) in IsOKWithParentMass" << G4en <<
270 } <<
271 for (G4int ic =0;ic <decaytable->entries <<
272 G4VDecayChannel * dc= decaytable->GetDecayCh <<
273 ed << ic << ": BR " << dc->GetBR() << ", IsO <<
274 << dc->IsOKWithParentMass(checkedmass) <<
275 << ", --> "; <<
276 G4int ndaughters=dc->GetNumberOfDaughters(); <<
277 for (G4int id=0;id<ndaughters;++id) { <<
278 if (id>0) ed << " + "; // seperator, exc <<
279 ed << dc->GetDaughterName(id); <<
280 } <<
281 ed << G4endl; <<
282 } <<
283 G4Exception("G4Decay::DoIt", "DECAY003", <<
284 } else { 299 } else {
>> 300 G4int temp = decaychannel->GetVerboseLevel();
285 // execute DecayIt() 301 // execute DecayIt()
286 #ifdef G4VERBOSE 302 #ifdef G4VERBOSE
287 G4int temp = decaychannel->GetVerboseLev <<
288 if (GetVerboseLevel()>1) { 303 if (GetVerboseLevel()>1) {
289 G4cout << "G4Decay::DoIt : selected decay c << 304 G4cerr << "G4Decay::DoIt : selected decay channel addr:" << decaychannel <<G4endl;
290 << decaychannel <<G4endl; <<
291 decaychannel->SetVerboseLevel(GetVerboseLeve 305 decaychannel->SetVerboseLevel(GetVerboseLevel());
292 } 306 }
293 #endif 307 #endif
294 products = decaychannel->DecayIt(aPartic 308 products = decaychannel->DecayIt(aParticle->GetMass());
295 #ifdef G4VERBOSE 309 #ifdef G4VERBOSE
296 if (GetVerboseLevel()>1) { 310 if (GetVerboseLevel()>1) {
297 decaychannel->SetVerboseLevel(temp); 311 decaychannel->SetVerboseLevel(temp);
298 } 312 }
299 #endif 313 #endif
300 #ifdef G4VERBOSE 314 #ifdef G4VERBOSE
301 if (GetVerboseLevel()>2) { << 315 // for debug
302 if (! products->IsChecked() ) products->Dump << 316 //if (! products->IsChecked() ) products->DumpInfo();
303 } <<
304 #endif 317 #endif
305 } 318 }
306 } 319 }
307 320
308 // get parent particle information ......... 321 // get parent particle information ...................................
309 G4double ParentEnergy = aParticle->GetTot 322 G4double ParentEnergy = aParticle->GetTotalEnergy();
310 G4double ParentMass = aParticle->GetMas <<
311 if (ParentEnergy < ParentMass) { <<
312 G4ExceptionDescription ed; <<
313 ed << "Total Energy is less than its mass <<
314 << "\n Particle: " << aParticle->GetDef <<
315 << "\n Energy:" << ParentEnergy/MeV <<
316 << "\n Mass:" << ParentMass/MeV << <<
317 G4Exception( "G4Decay::DecayIt ", <<
318 "DECAY102",JustWarning, ed); <<
319 ParentEnergy = ParentMass; <<
320 } <<
321 <<
322 G4ThreeVector ParentDirection(aParticle->Get 323 G4ThreeVector ParentDirection(aParticle->GetMomentumDirection());
323 324
324 //boost all decay products to laboratory fra 325 //boost all decay products to laboratory frame
325 G4double energyDeposit = 0.0; 326 G4double energyDeposit = 0.0;
326 G4double finalGlobalTime = aTrack.GetGlobalT 327 G4double finalGlobalTime = aTrack.GetGlobalTime();
327 G4double finalLocalTime = aTrack.GetLocalTim <<
328 if (aTrack.GetTrackStatus() == fStopButAlive 328 if (aTrack.GetTrackStatus() == fStopButAlive ){
329 // AtRest case 329 // AtRest case
330 finalGlobalTime += fRemainderLifeTime; 330 finalGlobalTime += fRemainderLifeTime;
331 finalLocalTime += fRemainderLifeTime; <<
332 energyDeposit += aParticle->GetKineticEner 331 energyDeposit += aParticle->GetKineticEnergy();
333 if (isPreAssigned) products->Boost( Parent << 332 if (isPreAssigned) products->Boost( ParentEnergy, ParentDirection);
334 } else { 333 } else {
335 // PostStep case 334 // PostStep case
336 if (!isExtDecayer) products->Boost( Parent << 335 if (!isExtDecayer) products->Boost( ParentEnergy, ParentDirection);
337 } 336 }
338 // set polarization for daughter particles <<
339 DaughterPolarization(aTrack, products); <<
340 <<
341 337
342 //add products in fParticleChangeForDecay 338 //add products in fParticleChangeForDecay
343 G4int numberOfSecondaries = products->entrie 339 G4int numberOfSecondaries = products->entries();
344 fParticleChangeForDecay.SetNumberOfSecondari 340 fParticleChangeForDecay.SetNumberOfSecondaries(numberOfSecondaries);
345 #ifdef G4VERBOSE 341 #ifdef G4VERBOSE
346 if (GetVerboseLevel()>1) { 342 if (GetVerboseLevel()>1) {
347 G4cout << "G4Decay::DoIt : Decay vertex : << 343 G4cerr << "G4Decay::DoIt : Decay vertex :";
348 G4cout << " Time: " << finalGlobalTime/ns << 344 G4cerr << " Time: " << finalGlobalTime/ns << "[ns]";
349 G4cout << " X:" << (aTrack.GetPosition()). << 345 G4cerr << " X:" << (aTrack.GetPosition()).x() /cm << "[cm]";
350 G4cout << " Y:" << (aTrack.GetPosition()). << 346 G4cerr << " Y:" << (aTrack.GetPosition()).y() /cm << "[cm]";
351 G4cout << " Z:" << (aTrack.GetPosition()). << 347 G4cerr << " Z:" << (aTrack.GetPosition()).z() /cm << "[cm]";
352 G4cout << G4endl; << 348 G4cerr << G4endl;
353 G4cout << "G4Decay::DoIt : decay products << 349 G4cerr << "G4Decay::DoIt : decay products in Lab. Frame" << G4endl;
354 products->DumpInfo(); 350 products->DumpInfo();
355 } 351 }
356 #endif 352 #endif
357 G4int index; 353 G4int index;
358 G4ThreeVector currentPosition; 354 G4ThreeVector currentPosition;
359 const G4TouchableHandle thand = aTrack.GetTo << 355 for (index=0; index < numberOfSecondaries; index++)
360 for (index=0; index < numberOfSecondaries; i << 356 {
361 // get current position of the track << 357 // get current position of the track
362 currentPosition = aTrack.GetPosition(); << 358 currentPosition = aTrack.GetPosition();
363 // create a new track object << 359 // create a new track object
364 G4Track* secondary = new G4Track( products << 360 G4Track* secondary = new G4Track( products->PopProducts(),
365 finalGlobalTime , 361 finalGlobalTime ,
366 currentPosition ); 362 currentPosition );
367 // switch on good for tracking flag << 363 // switch on good for tracking flag
368 secondary->SetGoodForTrackingFlag(); << 364 secondary->SetGoodForTrackingFlag();
369 secondary->SetTouchableHandle(thand); << 365 // add the secondary track in the List
370 // add the secondary track in the List << 366 fParticleChangeForDecay.AddSecondary(secondary);
371 fParticleChangeForDecay.AddSecondary(secon <<
372 } 367 }
373 delete products; 368 delete products;
374 << 369
375 // Kill the parent particle 370 // Kill the parent particle
376 fParticleChangeForDecay.ProposeTrackStatus( << 371 fParticleChangeForDecay.SetStatusChange( fStopAndKill ) ;
377 fParticleChangeForDecay.ProposeLocalEnergyDe << 372 fParticleChangeForDecay.SetLocalEnergyDeposit(energyDeposit);
378 fParticleChangeForDecay.ProposeLocalTime( fi << 373 fParticleChangeForDecay.SetTimeChange( finalGlobalTime );
379 << 374 // reset NumberOfInteractionLengthLeft
380 // Clear NumberOfInteractionLengthLeft <<
381 ClearNumberOfInteractionLengthLeft(); 375 ClearNumberOfInteractionLengthLeft();
382 << 376
383 return &fParticleChangeForDecay ; 377 return &fParticleChangeForDecay ;
384 } 378 }
385 379
386 void G4Decay::DaughterPolarization(const G4Tra <<
387 { <<
388 // empty implementation <<
389 } <<
390 <<
391 <<
392 <<
393 void G4Decay::StartTracking(G4Track*) <<
394 { <<
395 currentInteractionLength = -1.0; <<
396 ResetNumberOfInteractionLengthLeft(); <<
397 <<
398 fRemainderLifeTime = -1.0; <<
399 } <<
400 <<
401 void G4Decay::EndTracking() <<
402 { <<
403 // Clear NumberOfInteractionLengthLeft <<
404 ClearNumberOfInteractionLengthLeft(); <<
405 <<
406 currentInteractionLength = -1.0; <<
407 } <<
408 <<
409 <<
410 G4double G4Decay::PostStepGetPhysicalInteracti <<
411 const G4Track& tr <<
412 G4double previo <<
413 G4ForceCondition* <<
414 ) <<
415 { <<
416 // condition is set to "Not Forced" <<
417 *condition = NotForced; <<
418 <<
419 // pre-assigned Decay time <<
420 G4double pTime = track.GetDynamicParticle()- <<
421 G4double aLife = track.GetDynamicParticle()- <<
422 <<
423 if (pTime < 0.) { <<
424 // normal case <<
425 if ( previousStepSize > 0.0){ <<
426 // subtract NumberOfInteractionLengthLef <<
427 SubtractNumberOfInteractionLengthLeft(pr <<
428 if(theNumberOfInteractionLengthLeft<0.){ <<
429 theNumberOfInteractionLengthLeft=perMillion; <<
430 } <<
431 fRemainderLifeTime = theNumberOfInteract <<
432 } <<
433 // get mean free path <<
434 currentInteractionLength = GetMeanFreePath <<
435 <<
436 #ifdef G4VERBOSE <<
437 if ((currentInteractionLength <=0.0) || (v <<
438 G4cout << "G4Decay::PostStepGetPhysicalI <<
439 track.GetDynamicParticle()->DumpInfo(); <<
440 G4cout << " in Material " << track.GetM <<
441 G4cout << "MeanFreePath = " << currentIn <<
442 } <<
443 #endif <<
444 <<
445 G4double value; <<
446 if (currentInteractionLength <DBL_MAX) { <<
447 value = theNumberOfInteractionLengthLeft <<
448 //fRemainderLifeTime = theNumberOfIntera <<
449 } else { <<
450 value = DBL_MAX; <<
451 } <<
452 380
453 return value; <<
454 381
455 } else { <<
456 //pre-assigned Decay time case <<
457 // reminder proper time <<
458 fRemainderLifeTime = pTime - track.GetProp <<
459 if (fRemainderLifeTime <= 0.0) fRemainderL <<
460 <<
461 G4double rvalue=0.0; <<
462 // use pre-assigned Decay time to determin <<
463 if (aLife>0.0) { <<
464 // ordinary particle <<
465 rvalue = (fRemainderLifeTime/aLife)*GetM <<
466 } else { <<
467 // shortlived particle <<
468 rvalue = c_light * fRemainderLifeTime; <<
469 // by using normalized kinetic energy (= <<
470 G4double aMass = track.GetDynamicParti <<
471 rvalue *= track.GetDynamicParticle()->Get <<
472 } <<
473 return rvalue; <<
474 } <<
475 } <<
476 <<
477 G4double G4Decay::AtRestGetPhysicalInteraction <<
478 const G4Track& tr <<
479 G4ForceCondition* <<
480 ) <<
481 { <<
482 // condition is set to "Not Forced" <<
483 *condition = NotForced; <<
484 <<
485 G4double pTime = track.GetDynamicParticle()- <<
486 if (pTime >= 0.) { <<
487 fRemainderLifeTime = pTime - track.GetProp <<
488 if (fRemainderLifeTime <= 0.0) fRemainderL <<
489 } else { <<
490 fRemainderLifeTime = <<
491 theNumberOfInteractionLengthLeft * GetMe <<
492 } <<
493 return fRemainderLifeTime; <<
494 } <<
495 382
496 383
497 void G4Decay::SetExtDecayer(G4VExtDecayer* val <<
498 { <<
499 pExtDecayer = val; <<
500 <<
501 // set Process Sub Type <<
502 if ( pExtDecayer !=0 ) { <<
503 SetProcessSubType(static_cast<int>(DECAY_E <<
504 } <<
505 } <<
506 <<
507 G4VParticleChange* G4Decay::PostStepDoIt( <<
508 const G4Track& aTrack, <<
509 const G4Step& aStep <<
510 ) <<
511 { <<
512 if ( (aTrack.GetTrackStatus() == fStopButAli <<
513 (aTrack.GetTrackStatus() == fStopAndKil <<
514 fParticleChangeForDecay.Initialize(aTrack) <<
515 return &fParticleChangeForDecay; <<
516 } else { <<
517 return DecayIt(aTrack, aStep); <<
518 } <<
519 } <<
520 <<
521 void G4Decay::ProcessDescription(std::ostream& <<
522 { <<
523 outFile << GetProcessName() << ": Decay of p <<
524 << "kinematics of daughters are dertermine <<
525 << " or by PreAssignedDecayProducts\ <<
526 } <<
527 384