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25 // 25 //
>> 26 // $Id: G4PenelopePhotoElectricModel.cc,v 1.13 2010-11-26 11:51:11 pandola Exp $
>> 27 // GEANT4 tag $Name: geant4-09-04-patch-01 $
26 // 28 //
27 // Author: Luciano Pandola 29 // Author: Luciano Pandola
28 // 30 //
29 // History: 31 // History:
30 // -------- 32 // --------
31 // 08 Jan 2010 L Pandola First implementati << 33 // 08 Oct 2008 L Pandola Migration from process to model
32 // 01 Feb 2011 L Pandola Suppress fake ener << 34 // 08 Jan 2009 L Pandola Check shell index to avoid mismatch between
33 // is active. << 35 // the Penelope cross section database and the
34 // Make sure that flu << 36 // G4AtomicTransitionManager database. It suppresses
35 // only if above thre << 37 // a warning from G4AtomicTransitionManager only.
36 // 25 May 2011 L Pandola Renamed (make v200 << 38 // Results are unchanged.
37 // 10 Jun 2011 L Pandola Migrate atomic dee << 39 // 25 Mar 2009 L Pandola Small fix to avoid wrong energy-violation warnings
38 // 07 Oct 2011 L Pandola Bug fix (potential << 40 // 17 Apr 2009 V Ivanchenko Cleanup initialisation and generation of secondaries:
39 // 27 Sep 2013 L Pandola Migrate to MT para << 41 // - apply internal high-energy limit only in constructor
40 // tables. << 42 // - do not apply low-energy limit (default is 0)
41 // 02 Oct 2013 L Pandola Rewrite sampling a << 43 // - do not apply production threshold on secondaries
42 // to improve CPU per << 44 // 19 May 2009 L Pandola Explicitely set to zero pointers deleted in
>> 45 // Initialise(), since they might be checked later on
>> 46 // 21 Oct 2009 L Pandola Remove un-necessary fUseAtomicDeexcitation flag - now managed by
>> 47 // G4VEmModel::DeexcitationFlag()
>> 48 // 15 Mar 2010 L Pandola Explicitely initialize Auger to false
43 // 49 //
44 50
45 #include "G4PenelopePhotoElectricModel.hh" 51 #include "G4PenelopePhotoElectricModel.hh"
46 #include "G4PhysicalConstants.hh" <<
47 #include "G4SystemOfUnits.hh" <<
48 #include "G4ParticleDefinition.hh" 52 #include "G4ParticleDefinition.hh"
49 #include "G4MaterialCutsCouple.hh" 53 #include "G4MaterialCutsCouple.hh"
>> 54 #include "G4ProductionCutsTable.hh"
50 #include "G4DynamicParticle.hh" 55 #include "G4DynamicParticle.hh"
51 #include "G4PhysicsTable.hh" 56 #include "G4PhysicsTable.hh"
52 #include "G4PhysicsFreeVector.hh" <<
53 #include "G4ElementTable.hh" 57 #include "G4ElementTable.hh"
54 #include "G4Element.hh" 58 #include "G4Element.hh"
>> 59 #include "G4CrossSectionHandler.hh"
55 #include "G4AtomicTransitionManager.hh" 60 #include "G4AtomicTransitionManager.hh"
56 #include "G4AtomicShell.hh" 61 #include "G4AtomicShell.hh"
57 #include "G4Gamma.hh" 62 #include "G4Gamma.hh"
58 #include "G4Electron.hh" 63 #include "G4Electron.hh"
59 #include "G4AutoLock.hh" << 64 #include "G4VEMDataSet.hh"
60 #include "G4LossTableManager.hh" <<
61 #include "G4Exp.hh" <<
62 65
63 //....oooOO0OOooo........oooOO0OOooo........oo 66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
64 67
65 const G4int G4PenelopePhotoElectricModel::fMax <<
66 G4PhysicsTable* G4PenelopePhotoElectricModel:: <<
67 68
68 //....oooOO0OOooo........oooOO0OOooo........oo << 69 G4PenelopePhotoElectricModel::G4PenelopePhotoElectricModel(const G4ParticleDefinition*,
69 << 70 const G4String& nam)
70 G4PenelopePhotoElectricModel::G4PenelopePhotoE << 71 :G4VEmModel(nam),isInitialised(false),crossSectionHandler(0),
71 const G4String& nam) << 72 shellCrossSectionHandler(0)
72 :G4VEmModel(nam),fParticleChange(nullptr),fP <<
73 fAtomDeexcitation(nullptr),fIsInitialised(f <<
74 { 73 {
75 fIntrinsicLowEnergyLimit = 100.0*eV; 74 fIntrinsicLowEnergyLimit = 100.0*eV;
76 fIntrinsicHighEnergyLimit = 100.0*GeV; 75 fIntrinsicHighEnergyLimit = 100.0*GeV;
77 // SetLowEnergyLimit(fIntrinsicLowEnergyLim 76 // SetLowEnergyLimit(fIntrinsicLowEnergyLimit);
78 SetHighEnergyLimit(fIntrinsicHighEnergyLimit 77 SetHighEnergyLimit(fIntrinsicHighEnergyLimit);
79 // 78 //
80 << 79 verboseLevel= 0;
81 if (part) <<
82 SetParticle(part); <<
83 <<
84 fVerboseLevel= 0; <<
85 // Verbosity scale: 80 // Verbosity scale:
86 // 0 = nothing << 81 // 0 = nothing
87 // 1 = warning for energy non-conservation << 82 // 1 = warning for energy non-conservation
88 // 2 = details of energy budget 83 // 2 = details of energy budget
89 // 3 = calculation of cross sections, file o 84 // 3 = calculation of cross sections, file openings, sampling of atoms
90 // 4 = entering in methods 85 // 4 = entering in methods
91 86
92 //Mark this model as "applicable" for atomic << 87 //by default the model will inkove the atomic deexcitation
93 SetDeexcitationFlag(true); << 88 SetDeexcitationFlag(true);
94 << 89 ActivateAuger(false);
95 fTransitionManager = G4AtomicTransitionManag <<
96 } 90 }
97 91
98 //....oooOO0OOooo........oooOO0OOooo........oo 92 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
99 93
100 G4PenelopePhotoElectricModel::~G4PenelopePhoto 94 G4PenelopePhotoElectricModel::~G4PenelopePhotoElectricModel()
101 { << 95 {
102 if (IsMaster() || fLocalTable) << 96 if (crossSectionHandler) delete crossSectionHandler;
103 { << 97 if (shellCrossSectionHandler) delete shellCrossSectionHandler;
104 for(G4int i=0; i<=fMaxZ; ++i) <<
105 { <<
106 if(fLogAtomicShellXS[i]) { <<
107 fLogAtomicShellXS[i]->clearAndDestroy(); <<
108 delete fLogAtomicShellXS[i]; <<
109 fLogAtomicShellXS[i] = nullptr; <<
110 } <<
111 } <<
112 } <<
113 } 98 }
114 99
115 //....oooOO0OOooo........oooOO0OOooo........oo 100 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
116 101
117 void G4PenelopePhotoElectricModel::Initialise( << 102 void G4PenelopePhotoElectricModel::Initialise(const G4ParticleDefinition*,
118 const G4DataVector& cuts) << 103 const G4DataVector& )
119 { 104 {
120 if (fVerboseLevel > 3) << 105 if (verboseLevel > 3)
121 G4cout << "Calling G4PenelopePhotoElectri 106 G4cout << "Calling G4PenelopePhotoElectricModel::Initialise()" << G4endl;
122 << 107 if (crossSectionHandler)
123 fAtomDeexcitation = G4LossTableManager::Inst <<
124 //Issue warning if the AtomicDeexcitation ha <<
125 if (!fAtomDeexcitation) <<
126 { 108 {
127 G4cout << G4endl; << 109 crossSectionHandler->Clear();
128 G4cout << "WARNING from G4PenelopePhotoE << 110 delete crossSectionHandler;
129 G4cout << "Atomic de-excitation module i << 111 crossSectionHandler = 0;
130 G4cout << "any fluorescence/Auger emissi << 112 }
131 G4cout << "Please make sure this is inte << 113 if (shellCrossSectionHandler)
132 } << 114 {
133 << 115 shellCrossSectionHandler->Clear();
134 SetParticle(particle); << 116 delete shellCrossSectionHandler;
135 << 117 shellCrossSectionHandler =0;
136 //Only the master model creates/fills/destro << 118 }
137 if (IsMaster() && particle == fParticle) << 119
138 { << 120 //Re-initialize cross section handlers
139 G4ProductionCutsTable* theCoupleTable = << 121 crossSectionHandler = new G4CrossSectionHandler();
140 G4ProductionCutsTable::GetProductionCutsTabl << 122 crossSectionHandler->Clear();
141 << 123 G4String crossSectionFile = "penelope/ph-cs-pen-";
142 for (G4int i=0;i<(G4int)theCoupleTable-> << 124 crossSectionHandler->LoadData(crossSectionFile);
143 { << 125 shellCrossSectionHandler = new G4CrossSectionHandler();
144 const G4Material* material = << 126 shellCrossSectionHandler->Clear();
145 theCoupleTable->GetMaterialCutsCouple(i) << 127 crossSectionFile = "penelope/ph-ss-cs-pen-";
146 const G4ElementVector* theElementVector = << 128 shellCrossSectionHandler->LoadShellData(crossSectionFile);
147 << 129 //This is used to retrieve cross section values later on
148 for (std::size_t j=0;j<material->GetNumber << 130 G4VEMDataSet* emdata =
149 { << 131 crossSectionHandler->BuildMeanFreePathForMaterials();
150 G4int iZ = theElementVector->at(j)->Ge << 132 //The method BuildMeanFreePathForMaterials() is required here only to force
151 //read data files only in the master << 133 //the building of an internal table: the output pointer can be deleted
152 if (!fLogAtomicShellXS[iZ]) << 134 delete emdata;
153 ReadDataFile(iZ); << 135
154 } << 136 if (verboseLevel > 2)
155 } << 137 G4cout << "Loaded cross section files for PenelopePhotoElectric" << G4endl;
156 << 138
157 InitialiseElementSelectors(particle,cuts << 139 if (verboseLevel > 0) {
158 << 140 G4cout << "Penelope Photo-Electric model is initialized " << G4endl
159 if (fVerboseLevel > 0) { << 141 << "Energy range: "
160 G4cout << "Penelope Photo-Electric model v20 << 142 << LowEnergyLimit() / MeV << " MeV - "
161 << "Energy range: " << 143 << HighEnergyLimit() / GeV << " GeV"
162 << LowEnergyLimit() / MeV << " MeV - << 144 << G4endl;
163 << HighEnergyLimit() / GeV << " GeV"; << 145 }
164 } <<
165 } <<
166 146
167 if(fIsInitialised) return; << 147 if(isInitialised) return;
168 fParticleChange = GetParticleChangeForGamma( 148 fParticleChange = GetParticleChangeForGamma();
169 fIsInitialised = true; << 149 isInitialised = true;
170 <<
171 } <<
172 <<
173 void G4PenelopePhotoElectricModel::InitialiseL <<
174 G4VEmModel *masterModel) <<
175 { <<
176 if (fVerboseLevel > 3) <<
177 G4cout << "Calling G4PenelopePhotoElectri <<
178 // <<
179 //Check that particle matches: one might hav <<
180 //for e+ and e-). <<
181 // <<
182 if (part == fParticle) <<
183 { <<
184 SetElementSelectors(masterModel->GetElem <<
185 <<
186 //Get the const table pointers from the <<
187 const G4PenelopePhotoElectricModel* theM <<
188 static_cast<G4PenelopePhotoElectricModel*> ( <<
189 for(G4int i=0; i<=fMaxZ; ++i) <<
190 fLogAtomicShellXS[i] = theModel->fLogAtomicS <<
191 //Same verbosity for all workers, as the <<
192 fVerboseLevel = theModel->fVerboseLevel; <<
193 } <<
194 <<
195 return; <<
196 } 150 }
197 151
198 //....oooOO0OOooo........oooOO0OOooo........oo 152 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
199 namespace { G4Mutex PenelopePhotoElectricMode << 153
200 G4double G4PenelopePhotoElectricModel::Compute 154 G4double G4PenelopePhotoElectricModel::ComputeCrossSectionPerAtom(
201 const G4ParticleDefinition*, << 155 const G4ParticleDefinition*,
202 G4double energy, << 156 G4double energy,
203 G4double Z, G4double, << 157 G4double Z, G4double,
204 G4double, G4double) << 158 G4double, G4double)
205 { 159 {
206 // 160 //
207 // Penelope model v2008 << 161 // Penelope model. Use data-driven approach for cross section estimate (and
>> 162 // also shell sampling from a given atom). Data are from the Livermore database
>> 163 // D.E. Cullen et al., Report UCRL-50400 (1989)
208 // 164 //
209 if (fVerboseLevel > 3) <<
210 G4cout << "Calling ComputeCrossSectionPerA <<
211 <<
212 G4int iZ = G4int(Z); <<
213 <<
214 if (!fLogAtomicShellXS[iZ]) <<
215 { <<
216 //If we are here, it means that Initiali <<
217 //not filled up. This can happen in a Un <<
218 if (fVerboseLevel > 0) <<
219 { <<
220 //Issue a G4Exception (warning) only in ve <<
221 G4ExceptionDescription ed; <<
222 ed << "Unable to retrieve the shell cross <<
223 ed << "This can happen only in Unit Tests <<
224 G4Exception("G4PenelopePhotoElectricModel: <<
225 "em2038",JustWarning,ed); <<
226 } <<
227 //protect file reading via autolock <<
228 G4AutoLock lock(&PenelopePhotoElectricMo <<
229 ReadDataFile(iZ); <<
230 lock.unlock(); <<
231 } <<
232 165
233 G4double cross = 0; << 166 if (verboseLevel > 3)
234 G4PhysicsTable* theTable = fLogAtomicShellX << 167 G4cout << "Calling ComputeCrossSectionPerAtom() of G4PenelopePhotoElectricModel" << G4endl;
235 G4PhysicsFreeVector* totalXSLog = (G4Physics <<
236 <<
237 if (!totalXSLog) <<
238 { <<
239 G4Exception("G4PenelopePhotoElectricMod <<
240 "em2039",FatalException, <<
241 "Unable to retrieve the total cross sec <<
242 return 0; <<
243 } <<
244 G4double logene = G4Log(energy); <<
245 G4double logXS = totalXSLog->Value(logene); <<
246 cross = G4Exp(logXS); <<
247 168
248 if (fVerboseLevel > 2) << 169 G4int iZ = (G4int) Z;
>> 170 // if (!crossSectionHandler) // VI: should not be
>> 171 // {
>> 172 // G4cout << "G4PenelopePhotoElectricModel::ComputeCrossSectionPerAtom" << G4endl;
>> 173 // G4cout << "The cross section handler is not correctly initialized" << G4endl;
>> 174 // G4Exception();
>> 175 // }
>> 176 G4double cs = crossSectionHandler->FindValue(iZ,energy);
>> 177
>> 178 if (verboseLevel > 2)
249 G4cout << "Photoelectric cross section at 179 G4cout << "Photoelectric cross section at " << energy/MeV << " MeV for Z=" << Z <<
250 " = " << cross/barn << " barn" << G4endl << 180 " = " << cs/barn << " barn" << G4endl;
251 return cross; << 181 return cs;
252 } 182 }
253 183
254 //....oooOO0OOooo........oooOO0OOooo........oo 184 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
255 185
256 void G4PenelopePhotoElectricModel::SampleSecon 186 void G4PenelopePhotoElectricModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
257 const G4MaterialCutsCouple* c << 187 const G4MaterialCutsCouple* couple,
258 const G4DynamicParticle* aDyn << 188 const G4DynamicParticle* aDynamicGamma,
259 G4double, << 189 G4double,
260 G4double) << 190 G4double)
261 { 191 {
262 // 192 //
263 // Photoelectric effect, Penelope model v200 << 193 // Photoelectric effect, Penelope model
264 // 194 //
265 // The target atom and the target shell are << 195 // The target atom and the target shell are sampled according to the Livermore
266 // database << 196 // database
267 // D.E. Cullen et al., Report UCRL-50400 (1 197 // D.E. Cullen et al., Report UCRL-50400 (1989)
268 // The angular distribution of the electron << 198 // The angular distribution of the electron in the final state is sampled
269 // according to the Sauter distribution from << 199 // according to the Sauter distribution from
270 // F. Sauter, Ann. Phys. 11 (1931) 454 200 // F. Sauter, Ann. Phys. 11 (1931) 454
271 // The energy of the final electron is given << 201 // The energy of the final electron is given by the initial photon energy minus
272 // the binding energy. Fluorescence de-excit << 202 // the binding energy. Fluorescence de-excitation is subsequently produced
273 // (to fill the vacancy) according to the ge 203 // (to fill the vacancy) according to the general Geant4 G4DeexcitationManager:
274 // J. Stepanek, Comp. Phys. Comm. 1206 pp 1 204 // J. Stepanek, Comp. Phys. Comm. 1206 pp 1-1-9 (1997)
275 205
276 if (fVerboseLevel > 3) << 206 if (verboseLevel > 3)
277 G4cout << "Calling SamplingSecondaries() o 207 G4cout << "Calling SamplingSecondaries() of G4PenelopePhotoElectricModel" << G4endl;
278 208
279 G4double photonEnergy = aDynamicGamma->GetKi 209 G4double photonEnergy = aDynamicGamma->GetKineticEnergy();
280 210
281 // always kill primary 211 // always kill primary
282 fParticleChange->ProposeTrackStatus(fStopAnd 212 fParticleChange->ProposeTrackStatus(fStopAndKill);
283 fParticleChange->SetProposedKineticEnergy(0. 213 fParticleChange->SetProposedKineticEnergy(0.);
284 214
285 if (photonEnergy <= fIntrinsicLowEnergyLimit 215 if (photonEnergy <= fIntrinsicLowEnergyLimit)
286 { 216 {
287 fParticleChange->ProposeLocalEnergyDepos 217 fParticleChange->ProposeLocalEnergyDeposit(photonEnergy);
288 return ; 218 return ;
289 } 219 }
290 220
291 G4ParticleMomentum photonDirection = aDynami 221 G4ParticleMomentum photonDirection = aDynamicGamma->GetMomentumDirection();
292 222
293 // Select randomly one element in the curren 223 // Select randomly one element in the current material
294 if (fVerboseLevel > 2) << 224 if (verboseLevel > 2)
295 G4cout << "Going to select element in " << 225 G4cout << "Going to select element in " << couple->GetMaterial()->GetName() << G4endl;
296 << 226 //use crossSectionHandler instead of G4EmElementSelector because in this case
297 // atom can be selected efficiently if eleme << 227 //the dimension of the table is equal to the dimension of the database
298 const G4Element* anElement = << 228 //(less interpolation errors)
299 SelectRandomAtom(couple,G4Gamma::GammaDefi << 229 G4int Z = crossSectionHandler->SelectRandomAtom(couple,photonEnergy);
300 G4int Z = anElement->GetZasInt(); << 230 if (verboseLevel > 2)
301 if (fVerboseLevel > 2) << 231 G4cout << "Selected Z = " << Z << G4endl;
302 G4cout << "Selected " << anElement->GetNam <<
303 232
304 // Select the ionised shell in the current a 233 // Select the ionised shell in the current atom according to shell cross sections
305 //shellIndex = 0 --> K shell << 234 size_t shellIndex = shellCrossSectionHandler->SelectRandomShell(Z,photonEnergy);
306 // 1-3 --> L shells <<
307 // 4-8 --> M shells <<
308 // 9 --> outer shells cumulative <<
309 // <<
310 std::size_t shellIndex = SelectRandomShell(Z <<
311 <<
312 if (fVerboseLevel > 2) <<
313 G4cout << "Selected shell " << shellIndex <<
314 235
315 // Retrieve the corresponding identifier and 236 // Retrieve the corresponding identifier and binding energy of the selected shell
316 const G4AtomicTransitionManager* transitionM 237 const G4AtomicTransitionManager* transitionManager = G4AtomicTransitionManager::Instance();
317 238
318 //The number of shell cross section possibly << 239 //The number of shell cross section possibly reported in the Penelope database
319 //might be different from the number of shel 240 //might be different from the number of shells in the G4AtomicTransitionManager
320 //(namely, Penelope may contain more shell, 241 //(namely, Penelope may contain more shell, especially for very light elements).
321 //In order to avoid a warning message from t << 242 //In order to avoid a warning message from the G4AtomicTransitionManager, I
322 //add this protection. Results are anyway ch 243 //add this protection. Results are anyway changed, because when G4AtomicTransitionManager
323 //has a shellID>maxID, it sets the shellID t << 244 //has a shellID>maxID, it sets the shellID to the last valid shell.
324 std::size_t numberOfShells = (std::size_t) t << 245 size_t numberOfShells = (size_t) transitionManager->NumberOfShells(Z);
325 if (shellIndex >= numberOfShells) 246 if (shellIndex >= numberOfShells)
326 shellIndex = numberOfShells-1; 247 shellIndex = numberOfShells-1;
327 248
328 const G4AtomicShell* shell = fTransitionMana << 249 const G4AtomicShell* shell = transitionManager->Shell(Z,shellIndex);
329 G4double bindingEnergy = shell->BindingEnerg 250 G4double bindingEnergy = shell->BindingEnergy();
330 << 251 G4int shellId = shell->ShellId();
331 //Penelope considers only K, L and M shells. <<
332 //not included in the Penelope database. If <<
333 //shellIndex = 9, it means that an outer she <<
334 //Penelope recipe is to set bindingEnergy = <<
335 //to the electron) and to disregard fluoresc <<
336 if (shellIndex == 9) <<
337 bindingEnergy = 0.*eV; <<
338 252
339 G4double localEnergyDeposit = 0.0; 253 G4double localEnergyDeposit = 0.0;
340 G4double cosTheta = 1.0; <<
341 254
342 // Primary outcoming electron 255 // Primary outcoming electron
343 G4double eKineticEnergy = photonEnergy - bin 256 G4double eKineticEnergy = photonEnergy - bindingEnergy;
344 << 257
345 // There may be cases where the binding ener 258 // There may be cases where the binding energy of the selected shell is > photon energy
346 // In such cases do not generate secondaries 259 // In such cases do not generate secondaries
347 if (eKineticEnergy > 0.) 260 if (eKineticEnergy > 0.)
348 { << 261 {
349 // The electron is created 262 // The electron is created
350 // Direction sampled from the Sauter dis 263 // Direction sampled from the Sauter distribution
351 cosTheta = SampleElectronDirection(eKine << 264 G4double cosTheta = SampleElectronDirection(eKineticEnergy);
352 G4double sinTheta = std::sqrt(1-cosTheta 265 G4double sinTheta = std::sqrt(1-cosTheta*cosTheta);
353 G4double phi = twopi * G4UniformRand() ; 266 G4double phi = twopi * G4UniformRand() ;
354 G4double dirx = sinTheta * std::cos(phi) 267 G4double dirx = sinTheta * std::cos(phi);
355 G4double diry = sinTheta * std::sin(phi) 268 G4double diry = sinTheta * std::sin(phi);
356 G4double dirz = cosTheta ; 269 G4double dirz = cosTheta ;
357 G4ThreeVector electronDirection(dirx,dir 270 G4ThreeVector electronDirection(dirx,diry,dirz); //electron direction
358 electronDirection.rotateUz(photonDirecti 271 electronDirection.rotateUz(photonDirection);
359 G4DynamicParticle* electron = new G4Dyna << 272 G4DynamicParticle* electron = new G4DynamicParticle (G4Electron::Electron(),
360 electronDirection, << 273 electronDirection,
361 eKineticEnergy); 274 eKineticEnergy);
362 fvect->push_back(electron); 275 fvect->push_back(electron);
363 } << 276 }
364 else 277 else
365 bindingEnergy = photonEnergy; << 278 {
366 << 279 bindingEnergy = photonEnergy;
>> 280 }
367 G4double energyInFluorescence = 0; //testing 281 G4double energyInFluorescence = 0; //testing purposes
368 G4double energyInAuger = 0; //testing purpos <<
369 282
370 //Now, take care of fluorescence, if require << 283 //Now, take care of fluorescence, if required
371 //recipe, I have to skip fluoresence complet << 284 if(DeexcitationFlag() && Z > 5)
372 //(= sampling of a shell outer than K,L,M) <<
373 if (fAtomDeexcitation && shellIndex<9) <<
374 { 285 {
375 G4int index = couple->GetIndex(); << 286 const G4ProductionCutsTable* theCoupleTable=
376 if (fAtomDeexcitation->CheckDeexcitation << 287 G4ProductionCutsTable::GetProductionCutsTable();
>> 288 size_t indx = couple->GetIndex();
>> 289 G4double cutG = (*(theCoupleTable->GetEnergyCutsVector(0)))[indx];
>> 290 G4double cutE = (*(theCoupleTable->GetEnergyCutsVector(1)))[indx];
>> 291
>> 292 // Protection to avoid generating photons in the unphysical case of
>> 293 // shell binding energy > photon energy
>> 294 if (bindingEnergy > cutG || bindingEnergy > cutE)
377 { 295 {
378 std::size_t nBefore = fvect->size(); << 296 deexcitationManager.SetCutForSecondaryPhotons(cutG);
379 fAtomDeexcitation->GenerateParticles(fvect << 297 deexcitationManager.SetCutForAugerElectrons(cutE);
380 std::size_t nAfter = fvect->size(); << 298 std::vector<G4DynamicParticle*>* photonVector =
381 << 299 deexcitationManager.GenerateParticles(Z,shellId);
382 if (nAfter > nBefore) //actual production << 300 //Check for secondaries
>> 301 if(photonVector)
383 { 302 {
384 for (std::size_t j=nBefore;j<nAfter;++ << 303 for (size_t k=0; k< photonVector->size(); k++)
385 { 304 {
386 G4double itsEnergy = ((*fvect)[j])->GetK << 305 G4DynamicParticle* aPhoton = (*photonVector)[k];
387 if (itsEnergy < bindingEnergy) // valid << 306 if (aPhoton)
388 { 307 {
389 bindingEnergy -= itsEnergy; << 308 G4double itsEnergy = aPhoton->GetKineticEnergy();
390 if (((*fvect)[j])->GetParticleDefini << 309 if (itsEnergy <= bindingEnergy)
391 energyInFluorescence += itsEnergy; << 310 {
392 else if (((*fvect)[j])->GetParticleD << 311 if(aPhoton->GetDefinition() == G4Gamma::Gamma())
393 energyInAuger += itsEnergy; << 312 energyInFluorescence += itsEnergy;
>> 313 bindingEnergy -= itsEnergy;
>> 314 fvect->push_back(aPhoton);
>> 315 }
>> 316 else
>> 317 {
>> 318 delete aPhoton;
>> 319 (*photonVector)[k] = 0;
>> 320 }
394 } 321 }
395 else //invalid secondary: takes more tha <<
396 { <<
397 delete (*fvect)[j]; <<
398 (*fvect)[j] = nullptr; <<
399 } <<
400 } 322 }
>> 323 delete photonVector;
401 } 324 }
402 } 325 }
403 } 326 }
404 <<
405 //Residual energy is deposited locally 327 //Residual energy is deposited locally
406 localEnergyDeposit += bindingEnergy; 328 localEnergyDeposit += bindingEnergy;
407 << 329
408 if (localEnergyDeposit < 0) //Should not be: << 330 if (localEnergyDeposit < 0)
409 { 331 {
410 G4Exception("G4PenelopePhotoElectricMode << 332 G4cout << "WARNING - "
411 "em2099",JustWarning,"WARNING: Negative << 333 << "G4PenelopePhotoElectric::PostStepDoIt - Negative energy deposit"
>> 334 << G4endl;
412 localEnergyDeposit = 0; 335 localEnergyDeposit = 0;
413 } 336 }
414 337
415 fParticleChange->ProposeLocalEnergyDeposit(l 338 fParticleChange->ProposeLocalEnergyDeposit(localEnergyDeposit);
416 339
417 if (fVerboseLevel > 1) << 340 if (verboseLevel > 1)
418 { 341 {
419 G4cout << "----------------------------- 342 G4cout << "-----------------------------------------------------------" << G4endl;
420 G4cout << "Energy balance from G4Penelop 343 G4cout << "Energy balance from G4PenelopePhotoElectric" << G4endl;
421 G4cout << "Selected shell: " << WriteTar <<
422 anElement->GetName() << G4endl; <<
423 G4cout << "Incoming photon energy: " << 344 G4cout << "Incoming photon energy: " << photonEnergy/keV << " keV" << G4endl;
424 G4cout << "----------------------------- 345 G4cout << "-----------------------------------------------------------" << G4endl;
425 if (eKineticEnergy) 346 if (eKineticEnergy)
426 G4cout << "Outgoing electron " << eKineticEn 347 G4cout << "Outgoing electron " << eKineticEnergy/keV << " keV" << G4endl;
427 if (energyInFluorescence) << 348 G4cout << "Fluorescence: " << energyInFluorescence/keV << " keV" << G4endl;
428 G4cout << "Fluorescence x-rays: " << energyI <<
429 if (energyInAuger) <<
430 G4cout << "Auger electrons: " << energyInAug <<
431 G4cout << "Local energy deposit " << loc 349 G4cout << "Local energy deposit " << localEnergyDeposit/keV << " keV" << G4endl;
432 G4cout << "Total final state: " << << 350 G4cout << "Total final state: " << (eKineticEnergy+energyInFluorescence+localEnergyDeposit)/keV <<
433 (eKineticEnergy+energyInFluorescence+localEn <<
434 " keV" << G4endl; 351 " keV" << G4endl;
435 G4cout << "----------------------------- 352 G4cout << "-----------------------------------------------------------" << G4endl;
436 } 353 }
437 if (fVerboseLevel > 0) << 354 if (verboseLevel > 0)
438 { 355 {
439 G4double energyDiff = << 356 G4double energyDiff =
440 std::fabs(eKineticEnergy+energyInFluorescenc << 357 std::fabs(eKineticEnergy+energyInFluorescence+localEnergyDeposit-photonEnergy);
441 if (energyDiff > 0.05*keV) 358 if (energyDiff > 0.05*keV)
442 { << 359 G4cout << "Warning from G4PenelopePhotoElectric: problem with energy conservation: " <<
443 G4cout << "Warning from G4PenelopePhotoEle << 360 (eKineticEnergy+energyInFluorescence+localEnergyDeposit)/keV
444 (eKineticEnergy+energyInFluorescence+loc << 361 << " keV (final) vs. " <<
445 << " keV (final) vs. " << << 362 photonEnergy/keV << " keV (initial)" << G4endl;
446 photonEnergy/keV << " keV (initial)" << << 363 }
447 G4cout << "------------------------------- << 364 }
448 G4cout << "Energy balance from G4PenelopeP << 365
449 G4cout << "Selected shell: " << WriteTarge << 366 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
450 anElement->GetName() << G4endl; << 367
451 G4cout << "Incoming photon energy: " << ph << 368 void G4PenelopePhotoElectricModel::ActivateAuger(G4bool augerbool)
452 G4cout << "------------------------------- << 369 {
453 if (eKineticEnergy) << 370 if (!DeexcitationFlag() && augerbool)
454 G4cout << "Outgoing electron " << eKinet << 371 {
455 if (energyInFluorescence) << 372 G4cout << "WARNING - G4PenelopePhotoElectricModel" << G4endl;
456 G4cout << "Fluorescence x-rays: " << ene << 373 G4cout << "The use of the Atomic Deexcitation Manager is set to false " << G4endl;
457 if (energyInAuger) << 374 G4cout << "Therefore, Auger electrons will be not generated anyway" << G4endl;
458 G4cout << "Auger electrons: " << energyI <<
459 G4cout << "Local energy deposit " << local <<
460 G4cout << "Total final state: " << <<
461 (eKineticEnergy+energyInFluorescence+loc <<
462 " keV" << G4endl; <<
463 G4cout << "------------------------------- <<
464 } <<
465 } 375 }
>> 376 deexcitationManager.ActivateAugerElectronProduction(augerbool);
>> 377 if (verboseLevel > 1)
>> 378 G4cout << "Auger production set to " << augerbool << G4endl;
466 } 379 }
467 380
468 //....oooOO0OOooo........oooOO0OOooo........oo 381 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
469 382
470 G4double G4PenelopePhotoElectricModel::SampleE 383 G4double G4PenelopePhotoElectricModel::SampleElectronDirection(G4double energy)
471 { 384 {
472 G4double costheta = 1.0; 385 G4double costheta = 1.0;
473 if (energy>1*GeV) return costheta; 386 if (energy>1*GeV) return costheta;
474 << 387
475 //1) initialize energy-dependent variables 388 //1) initialize energy-dependent variables
476 // Variable naming according to Eq. (2.24) o 389 // Variable naming according to Eq. (2.24) of Penelope Manual
477 // (pag. 44) 390 // (pag. 44)
478 G4double gamma = 1.0 + energy/electron_mass_ 391 G4double gamma = 1.0 + energy/electron_mass_c2;
479 G4double gamma2 = gamma*gamma; 392 G4double gamma2 = gamma*gamma;
480 G4double beta = std::sqrt((gamma2-1.0)/gamma 393 G4double beta = std::sqrt((gamma2-1.0)/gamma2);
481 << 394
482 // ac corresponds to "A" of Eq. (2.31) 395 // ac corresponds to "A" of Eq. (2.31)
483 // 396 //
484 G4double ac = (1.0/beta) - 1.0; 397 G4double ac = (1.0/beta) - 1.0;
485 G4double a1 = 0.5*beta*gamma*(gamma-1.0)*(ga 398 G4double a1 = 0.5*beta*gamma*(gamma-1.0)*(gamma-2.0);
486 G4double a2 = ac + 2.0; 399 G4double a2 = ac + 2.0;
487 G4double gtmax = 2.0*(a1 + 1.0/ac); 400 G4double gtmax = 2.0*(a1 + 1.0/ac);
488 << 401
489 G4double tsam = 0; 402 G4double tsam = 0;
490 G4double gtr = 0; 403 G4double gtr = 0;
491 404
492 //2) sampling. Eq. (2.31) of Penelope Manual 405 //2) sampling. Eq. (2.31) of Penelope Manual
493 // tsam = 1-std::cos(theta) 406 // tsam = 1-std::cos(theta)
494 // gtr = rejection function according to Eq. 407 // gtr = rejection function according to Eq. (2.28)
495 do{ 408 do{
496 G4double rand = G4UniformRand(); 409 G4double rand = G4UniformRand();
497 tsam = 2.0*ac * (2.0*rand + a2*std::sqrt(r 410 tsam = 2.0*ac * (2.0*rand + a2*std::sqrt(rand)) / (a2*a2 - 4.0*rand);
498 gtr = (2.0 - tsam) * (a1 + 1.0/(ac+tsam)); 411 gtr = (2.0 - tsam) * (a1 + 1.0/(ac+tsam));
499 }while(G4UniformRand()*gtmax > gtr); 412 }while(G4UniformRand()*gtmax > gtr);
500 costheta = 1.0-tsam; 413 costheta = 1.0-tsam;
501 <<
502 return costheta; 414 return costheta;
503 } 415 }
504 416
505 //....oooOO0OOooo........oooOO0OOooo........oo <<
506 <<
507 void G4PenelopePhotoElectricModel::ReadDataFil <<
508 { <<
509 if (!IsMaster()) <<
510 //Should not be here! <<
511 G4Exception("G4PenelopePhotoElectricModel: <<
512 "em0100",FatalException,"Worker thread in <<
513 <<
514 if (fVerboseLevel > 2) <<
515 { <<
516 G4cout << "G4PenelopePhotoElectricModel: <<
517 G4cout << "Going to read PhotoElectric d <<
518 } <<
519 <<
520 const char* path = G4FindDataDir("G4LEDATA <<
521 if(!path) <<
522 { <<
523 G4String excep = "G4PenelopePhotoElectri <<
524 G4Exception("G4PenelopePhotoElectricMode <<
525 "em0006",FatalException,excep); <<
526 return; <<
527 } <<
528 <<
529 /* <<
530 Read the cross section file <<
531 */ <<
532 std::ostringstream ost; <<
533 if (Z>9) <<
534 ost << path << "/penelope/photoelectric/pd <<
535 else <<
536 ost << path << "/penelope/photoelectric/pd <<
537 std::ifstream file(ost.str().c_str()); <<
538 if (!file.is_open()) <<
539 { <<
540 G4String excep = "G4PenelopePhotoElectri <<
541 G4Exception("G4PenelopePhotoElectricMode <<
542 "em0003",FatalException,excep); <<
543 } <<
544 //I have to know in advance how many points <<
545 //to initialize the G4PhysicsFreeVector() <<
546 std::size_t ndata=0; <<
547 G4String line; <<
548 while( getline(file, line) ) <<
549 ndata++; <<
550 ndata -= 1; <<
551 //G4cout << "Found: " << ndata << " lines" < <<
552 <<
553 file.clear(); <<
554 file.close(); <<
555 file.open(ost.str().c_str()); <<
556 <<
557 G4int readZ =0; <<
558 std::size_t nShells= 0; <<
559 file >> readZ >> nShells; <<
560 <<
561 if (fVerboseLevel > 3) <<
562 G4cout << "Element Z=" << Z << " , nShells <<
563 <<
564 //check the right file is opened. <<
565 if (readZ != Z || nShells <= 0 || nShells > <<
566 { <<
567 G4ExceptionDescription ed; <<
568 ed << "Corrupted data file for Z=" << Z <<
569 G4Exception("G4PenelopePhotoElectricMode <<
570 "em0005",FatalException,ed); <<
571 return; <<
572 } <<
573 G4PhysicsTable* thePhysicsTable = new G4Phys <<
574 <<
575 //the table has to contain nShell+1 G4Physic <<
576 //(theTable)[0] --> total cross section <<
577 //(theTable)[ishell] --> cross section for s <<
578 <<
579 //reserve space for the vectors <<
580 //everything is log-log <<
581 for (std::size_t i=0;i<nShells+1;++i) <<
582 thePhysicsTable->push_back(new G4PhysicsFr <<
583 <<
584 std::size_t k =0; <<
585 for (k=0;k<ndata && !file.eof();++k) <<
586 { <<
587 G4double energy = 0; <<
588 G4double aValue = 0; <<
589 file >> energy ; <<
590 energy *= eV; <<
591 G4double logene = G4Log(energy); <<
592 //loop on the columns <<
593 for (std::size_t i=0;i<nShells+1;++i) <<
594 { <<
595 file >> aValue; <<
596 aValue *= barn; <<
597 G4PhysicsFreeVector* theVec = (G4PhysicsFr <<
598 if (aValue < 1e-40*cm2) //protection again <<
599 aValue = 1e-40*cm2; <<
600 theVec->PutValue(k,logene,G4Log(aValue)); <<
601 } <<
602 } <<
603 <<
604 if (fVerboseLevel > 2) <<
605 { <<
606 G4cout << "G4PenelopePhotoElectricModel: <<
607 << Z << G4endl; <<
608 } <<
609 <<
610 fLogAtomicShellXS[Z] = thePhysicsTable; <<
611 <<
612 file.close(); <<
613 return; <<
614 } <<
615 <<
616 //....oooOO0OOooo........oooOO0OOooo........oo <<
617 <<
618 std::size_t G4PenelopePhotoElectricModel::GetN <<
619 { <<
620 if (!IsMaster()) <<
621 //Should not be here! <<
622 G4Exception("G4PenelopePhotoElectricModel: <<
623 "em0100",FatalException,"Worker thread in <<
624 <<
625 //read data files <<
626 if (!fLogAtomicShellXS[Z]) <<
627 ReadDataFile(Z); <<
628 //now it should be ok <<
629 if (!fLogAtomicShellXS[Z]) <<
630 { <<
631 G4ExceptionDescription ed; <<
632 ed << "Cannot find shell cross section <<
633 G4Exception("G4PenelopePhotoElectricMod <<
634 "em2038",FatalException,ed); <<
635 } <<
636 //one vector is allocated for the _total_ cr <<
637 std::size_t nEntries = fLogAtomicShellXS[Z]- <<
638 return (nEntries-1); <<
639 } <<
640 <<
641 //....oooOO0OOooo........oooOO0OOooo........oo <<
642 <<
643 G4double G4PenelopePhotoElectricModel::GetShel <<
644 { <<
645 //this forces also the loading of the data <<
646 std::size_t entries = GetNumberOfShellXS(Z); <<
647 <<
648 if (shellID >= entries) <<
649 { <<
650 G4cout << "Element Z=" << Z << " has dat <<
651 G4cout << "so shellID should be from 0 t <<
652 return 0; <<
653 } <<
654 <<
655 G4PhysicsTable* theTable = fLogAtomicShellX <<
656 //[0] is the total XS, shellID is in the ele <<
657 G4PhysicsFreeVector* totalXSLog = (G4Physics <<
658 <<
659 if (!totalXSLog) <<
660 { <<
661 G4Exception("G4PenelopePhotoElectricMod <<
662 "em2039",FatalException, <<
663 "Unable to retrieve the total cross sec <<
664 return 0; <<
665 } <<
666 G4double logene = G4Log(energy); <<
667 G4double logXS = totalXSLog->Value(logene); <<
668 G4double cross = G4Exp(logXS); <<
669 if (cross < 2e-40*cm2) cross = 0; <<
670 return cross; <<
671 } <<
672 <<
673 //....oooOO0OOooo........oooOO0OOooo........oo <<
674 <<
675 G4String G4PenelopePhotoElectricModel::WriteTa <<
676 { <<
677 G4String theShell = "outer shell"; <<
678 if (shellID == 0) <<
679 theShell = "K"; <<
680 else if (shellID == 1) <<
681 theShell = "L1"; <<
682 else if (shellID == 2) <<
683 theShell = "L2"; <<
684 else if (shellID == 3) <<
685 theShell = "L3"; <<
686 else if (shellID == 4) <<
687 theShell = "M1"; <<
688 else if (shellID == 5) <<
689 theShell = "M2"; <<
690 else if (shellID == 6) <<
691 theShell = "M3"; <<
692 else if (shellID == 7) <<
693 theShell = "M4"; <<
694 else if (shellID == 8) <<
695 theShell = "M5"; <<
696 <<
697 return theShell; <<
698 } <<
699 <<
700 //....oooOO0OOooo........oooOO0OOooo........oo <<
701 <<
702 void G4PenelopePhotoElectricModel::SetParticle <<
703 { <<
704 if(!fParticle) { <<
705 fParticle = p; <<
706 } <<
707 } <<
708 <<
709 //....oooOO0OOooo........oooOO0OOooo........oo <<
710 <<
711 std::size_t G4PenelopePhotoElectricModel::Sele <<
712 { <<
713 G4double logEnergy = G4Log(energy); <<
714 <<
715 //Check if data have been read (it should be <<
716 if (!fLogAtomicShellXS[Z]) <<
717 { <<
718 G4ExceptionDescription ed; <<
719 ed << "Cannot find shell cross section <<
720 G4Exception("G4PenelopePhotoElectricMod <<
721 "em2038",FatalException,ed); <<
722 } <<
723 <<
724 G4PhysicsTable* theTable = fLogAtomicShellX <<
725 <<
726 G4double sum = 0; <<
727 G4PhysicsFreeVector* totalXSLog = (G4Physics <<
728 G4double logXS = totalXSLog->Value(logEnergy <<
729 G4double totalXS = G4Exp(logXS); <<
730 <<
731 //Notice: totalXS is the total cross section <<
732 //the sum of partialXS's, since these includ <<
733 // <<
734 // Therefore, here one have to consider the <<
735 // an outer shell. Conventionally, it is ind <<
736 // <<
737 G4double random = G4UniformRand()*totalXS; <<
738 <<
739 for (std::size_t k=1;k<theTable->entries();+ <<
740 { <<
741 //Add one shell <<
742 G4PhysicsFreeVector* partialXSLog = (G4P <<
743 G4double logXSLocal = partialXSLog->Valu <<
744 G4double partialXS = G4Exp(logXSLocal); <<
745 sum += partialXS; <<
746 if (random <= sum) <<
747 return k-1; <<
748 } <<
749 //none of the shells K, L, M: return outer s <<
750 return 9; <<
751 } <<
752 417