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>> 26 // $Id: G4LivermorePhotoElectricModel.cc,v 1.9 2009/10/23 09:31:03 pandola Exp $
>> 27 // GEANT4 tag $Name: geant4-09-03-patch-01 $
26 // 28 //
27 // Author: Sebastien Incerti << 29 //
>> 30 // Author: Sebastien Inserti
28 // 30 October 2008 31 // 30 October 2008
29 // on base of G4LowEnergyPhotoElectric <<
30 // 32 //
31 // 22 Oct 2012 A & V Ivanchenko Migration da << 33 // History:
32 // 1 June 2017 M Bandieramonte: New model ba << 34 // --------
33 // evaluated data - parameteriza << 35 // 15 Apr 2009 V Ivanchenko Cleanup initialisation and generation of secondaries:
>> 36 // - apply internal high-energy limit only in constructor
>> 37 // - do not apply low-energy limit (default is 0)
>> 38 // - remove GetMeanFreePath method and table
>> 39 // - simplify sampling of deexcitation by using cut in energy
>> 40 // - added protection against numerical problem in energy sampling
>> 41 // - use G4ElementSelector
>> 42 // 23 Oct 2009 L Pandola
>> 43 // - atomic deexcitation managed via G4VEmModel::DeexcitationFlag() is
>> 44 // set as "true" (default would be false)
>> 45 //
34 46
35 #include "G4LivermorePhotoElectricModel.hh" 47 #include "G4LivermorePhotoElectricModel.hh"
36 48
37 #include "G4AtomicShell.hh" <<
38 #include "G4AutoLock.hh" <<
39 #include "G4CrossSectionHandler.hh" <<
40 #include "G4Electron.hh" <<
41 #include "G4Gamma.hh" <<
42 #include "G4LossTableManager.hh" <<
43 #include "G4ParticleChangeForGamma.hh" <<
44 #include "G4PhysicsFreeVector.hh" <<
45 #include "G4SauterGavrilaAngularDistribution.h <<
46 #include "G4SystemOfUnits.hh" <<
47 #include "G4VAtomDeexcitation.hh" <<
48 #include "G4EmParameters.hh" <<
49 #include <thread> <<
50 <<
51 //....oooOO0OOooo........oooOO0OOooo........oo 49 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
52 50
53 G4ElementData* G4LivermorePhotoElectricModel:: << 51 using namespace std;
54 G4ElementData* G4LivermorePhotoElectricModel:: <<
55 std::vector<G4double>* G4LivermorePhotoElectri <<
56 std::vector<G4double>* G4LivermorePhotoElectri <<
57 G4int G4LivermorePhotoElectricModel::fNShells[ <<
58 G4int G4LivermorePhotoElectricModel::fNShellsU <<
59 G4Material* G4LivermorePhotoElectricModel::fWa <<
60 G4double G4LivermorePhotoElectricModel::fWater <<
61 G4String G4LivermorePhotoElectricModel::fDataD <<
62 <<
63 static std::once_flag applyOnce; <<
64 <<
65 namespace <<
66 { <<
67 G4Mutex livPhotoeffMutex = G4MUTEX_INITIALIZ <<
68 } <<
69 52
70 //....oooOO0OOooo........oooOO0OOooo........oo 53 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
71 54
72 G4LivermorePhotoElectricModel::G4LivermorePhot << 55 G4LivermorePhotoElectricModel::G4LivermorePhotoElectricModel(const G4ParticleDefinition*,
>> 56 const G4String& nam)
>> 57 :G4VEmModel(nam),isInitialised(false),meanFreePathTable(0),
>> 58 crossSectionHandler(0),shellCrossSectionHandler(0),ElectronAngularGenerator(0)
73 { 59 {
74 verboseLevel = 0; << 60 lowEnergyLimit = 250 * eV;
>> 61 highEnergyLimit = 100 * GeV;
>> 62 // SetLowEnergyLimit(lowEnergyLimit);
>> 63 SetHighEnergyLimit(highEnergyLimit);
>> 64
>> 65 //Set atomic deexcitation by default
>> 66 SetDeexcitationFlag(true);
>> 67 ActivateAuger(false);
>> 68
>> 69 verboseLevel= 0;
75 // Verbosity scale: 70 // Verbosity scale:
76 // 0 = nothing << 71 // 0 = nothing
77 // 1 = warning for energy non-conservation << 72 // 1 = warning for energy non-conservation
78 // 2 = details of energy budget 73 // 2 = details of energy budget
79 // 3 = calculation of cross sections, file o 74 // 3 = calculation of cross sections, file openings, sampling of atoms
80 // 4 = entering in methods 75 // 4 = entering in methods
81 << 76 if(verboseLevel>0) {
82 theGamma = G4Gamma::Gamma(); << 77 G4cout << "Livermore PhotoElectric is constructed " << G4endl
83 theElectron = G4Electron::Electron(); << 78 << "Energy range: "
84 << 79 << lowEnergyLimit / eV << " eV - "
85 // default generator << 80 << highEnergyLimit / GeV << " GeV"
86 SetAngularDistribution(new G4SauterGavrilaAn << 81 << G4endl;
87 <<
88 if (verboseLevel > 0) { <<
89 G4cout << "Livermore PhotoElectric is cons <<
90 << " nShellLimit= " << nShellLimit <<
91 } 82 }
92 <<
93 // Mark this model as "applicable" for atomi <<
94 SetDeexcitationFlag(true); <<
95 <<
96 // For water <<
97 fSandiaCof.resize(4, 0.0); <<
98 } 83 }
99 84
100 //....oooOO0OOooo........oooOO0OOooo........oo 85 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
101 86
102 G4LivermorePhotoElectricModel::~G4LivermorePho 87 G4LivermorePhotoElectricModel::~G4LivermorePhotoElectricModel()
103 { << 88 {
104 if (isInitializer) { << 89 if (crossSectionHandler) delete crossSectionHandler;
105 for (G4int i = 0; i < ZMAXPE; ++i) { << 90 if (shellCrossSectionHandler) delete shellCrossSectionHandler;
106 if (fParamHigh[i]) { << 91 if (ElectronAngularGenerator) delete ElectronAngularGenerator;
107 delete fParamHigh[i]; <<
108 fParamHigh[i] = nullptr; <<
109 } <<
110 if (fParamLow[i]) { <<
111 delete fParamLow[i]; <<
112 fParamLow[i] = nullptr; <<
113 } <<
114 } <<
115 } <<
116 } 92 }
117 93
118 //....oooOO0OOooo........oooOO0OOooo........oo 94 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
119 95
120 void G4LivermorePhotoElectricModel::Initialise << 96 void
121 const G4DataVector&) << 97 G4LivermorePhotoElectricModel::Initialise(const G4ParticleDefinition*,
>> 98 const G4DataVector&)
122 { 99 {
123 if (verboseLevel > 1) { << 100 if (verboseLevel > 3)
124 G4cout << "Calling G4LivermorePhotoElectri << 101 G4cout << "Calling G4LivermorePhotoElectricModel::Initialise()" << G4endl;
125 } <<
126 102
127 // initialise static tables only once << 103 if (crossSectionHandler)
128 std::call_once(applyOnce, [this]() { isIniti << 104 {
129 << 105 crossSectionHandler->Clear();
130 if (isInitializer) { << 106 delete crossSectionHandler;
131 G4AutoLock l(&livPhotoeffMutex); <<
132 FindDirectoryPath(); <<
133 if (fWater == nullptr) { <<
134 fWater = G4Material::GetMaterial("G4_WAT <<
135 if (fWater == nullptr) { <<
136 fWater = G4Material::GetMaterial("Wate <<
137 } <<
138 if (fWater != nullptr) { <<
139 fWaterEnergyLimit = 13.6 * CLHEP::eV; <<
140 } <<
141 } <<
142 <<
143 if (fCrossSection == nullptr) { <<
144 fCrossSection = new G4ElementData(ZMAXPE <<
145 fCrossSection->SetName("PhotoEffXS"); <<
146 fCrossSectionLE = new G4ElementData(ZMAX <<
147 fCrossSectionLE->SetName("PhotoEffLowXS" <<
148 } <<
149 <<
150 const G4ElementTable* elemTable = G4Elemen <<
151 std::size_t numElems = (*elemTable).size() <<
152 for (std::size_t ie = 0; ie < numElems; ++ <<
153 const G4Element* elem = (*elemTable)[ie] <<
154 G4int Z = elem->GetZasInt(); <<
155 if (Z < ZMAXPE) { <<
156 if (fCrossSection->GetElementData(Z) == null <<
157 ReadData(Z); <<
158 } <<
159 } <<
160 } <<
161 l.unlock(); <<
162 } <<
163 <<
164 if (verboseLevel > 1) { <<
165 G4cout << "Loaded cross section files for <<
166 } 107 }
167 if (nullptr == fParticleChange) { << 108
168 fParticleChange = GetParticleChangeForGamm << 109 if (shellCrossSectionHandler)
169 fAtomDeexcitation = G4LossTableManager::In << 110 {
>> 111 shellCrossSectionHandler->Clear();
>> 112 delete shellCrossSectionHandler;
170 } 113 }
>> 114
>> 115 // Read data tables for all materials
>> 116
>> 117 crossSectionHandler = new G4CrossSectionHandler();
>> 118 crossSectionHandler->Clear();
>> 119 G4String crossSectionFile = "phot/pe-cs-";
>> 120 crossSectionHandler->LoadData(crossSectionFile);
171 121
172 fDeexcitationActive = false; << 122 shellCrossSectionHandler = new G4CrossSectionHandler();
173 if (nullptr != fAtomDeexcitation) { << 123 shellCrossSectionHandler->Clear();
174 fDeexcitationActive = fAtomDeexcitation->I << 124 G4String shellCrossSectionFile = "phot/pe-ss-cs-";
175 } << 125 shellCrossSectionHandler->LoadShellData(shellCrossSectionFile);
>> 126
>> 127 // SI - Simple generator is buggy
>> 128 //generatorName = "geant4.6.2";
>> 129 //ElectronAngularGenerator = new G4PhotoElectricAngularGeneratorSimple("GEANTSimpleGenerator"); // default generator
>> 130 ElectronAngularGenerator =
>> 131 new G4PhotoElectricAngularGeneratorSauterGavrila("GEANTSauterGavrilaGenerator");
176 132
177 if (verboseLevel > 1) { << 133 //
178 G4cout << "LivermorePhotoElectric model is << 134 if (verboseLevel > 2)
179 } << 135 G4cout << "Loaded cross section files for Livermore PhotoElectric model" << G4endl;
180 } <<
181 136
182 //....oooOO0OOooo........oooOO0OOooo........oo << 137 // InitialiseElementSelectors(particle,cuts);
183 138
184 G4double << 139 if (verboseLevel > 0) {
185 G4LivermorePhotoElectricModel::CrossSectionPer << 140 G4cout << "Livermore PhotoElectric model is initialized " << G4endl
186 << 141 << "Energy range: "
187 << 142 << LowEnergyLimit() / eV << " eV - "
188 G4double, G4double) << 143 << HighEnergyLimit() / GeV << " GeV"
189 { << 144 << G4endl;
190 fCurrSection = 0.0; <<
191 if (fWater && (material == fWater || materia <<
192 if (energy <= fWaterEnergyLimit) { <<
193 fWater->GetSandiaTable()->GetSandiaCofWa <<
194 <<
195 G4double energy2 = energy * energy; <<
196 G4double energy3 = energy * energy2; <<
197 G4double energy4 = energy2 * energy2; <<
198 <<
199 fCurrSection = material->GetDensity() <<
200 * (fSandiaCof[0] / energy <<
201 fSandiaCof[2] / energy3 + fSandiaCof[3] <<
202 } <<
203 } 145 }
204 if (0.0 == fCurrSection) { << 146
205 fCurrSection = G4VEmModel::CrossSectionPer << 147 if(isInitialised) return;
206 } << 148 fParticleChange = GetParticleChangeForGamma();
207 return fCurrSection; << 149 isInitialised = true;
208 } 150 }
209 151
210 //....oooOO0OOooo........oooOO0OOooo........oo 152 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
211 153
212 G4double << 154 G4double G4LivermorePhotoElectricModel::ComputeCrossSectionPerAtom(
213 G4LivermorePhotoElectricModel::ComputeCrossSec << 155 const G4ParticleDefinition*,
214 << 156 G4double GammaEnergy,
215 G4double ZZ, G4double, << 157 G4double Z, G4double,
216 G4double, G4double) << 158 G4double, G4double)
217 { 159 {
218 if (verboseLevel > 3) { << 160 if (verboseLevel > 3)
219 G4cout << "\n G4LivermorePhotoElectricMode << 161 G4cout << "Calling ComputeCrossSectionPerAtom() of G4LivermorePhotoElectricModel"
220 << " Z= " << ZZ << " R(keV)= " << << 162 << G4endl;
221 } <<
222 G4double cs = 0.0; <<
223 G4int Z = G4lrint(ZZ); <<
224 if (Z >= ZMAXPE || Z <= 0) { <<
225 return cs; <<
226 } <<
227 // if element was not initialised <<
228 <<
229 // do initialisation safely for MT mode <<
230 if (fCrossSection->GetElementData(Z) == null <<
231 InitialiseOnFly(Z); <<
232 if (fCrossSection->GetElementData(Z) == nu <<
233 } <<
234 163
235 // 7: rows in the parameterization file; 5: << 164 if (GammaEnergy < lowEnergyLimit || GammaEnergy > highEnergyLimit)
236 G4int idx = fNShells[Z] * 7 - 5; << 165 return 0;
237 166
238 energy = std::max(energy, (*(fParamHigh[Z])) << 167 G4double cs = crossSectionHandler->FindValue(G4int(Z), GammaEnergy);
239 <<
240 G4double x1 = 1.0 / energy; <<
241 G4double x2 = x1 * x1; <<
242 G4double x3 = x2 * x1; <<
243 <<
244 // high energy parameterisation <<
245 if (energy >= (*(fParamHigh[Z]))[0]) { <<
246 G4double x4 = x2 * x2; <<
247 G4double x5 = x4 * x1; <<
248 <<
249 cs = x1 * <<
250 ((*(fParamHigh[Z]))[idx] + x1 * (*(fPara <<
251 + x2 * (*(fParamHigh[Z]))[idx + 2] + x3 <<
252 + x4 * (*(fParamHigh[Z]))[idx + 4] + x5 <<
253 } <<
254 // low energy parameterisation <<
255 else if (energy >= (*(fParamLow[Z]))[0]) { <<
256 G4double x4 = x2 * x2; <<
257 G4double x5 = x4 * x1; // this variable u <<
258 cs = x1 * <<
259 ((*(fParamLow[Z]))[idx] + x1 * (*(fParam <<
260 + x2 * (*(fParamLow[Z]))[idx + 2] + x3 <<
261 + x4 * (*(fParamLow[Z]))[idx + 4] + x5 <<
262 } <<
263 // Tabulated values above k-shell ionization <<
264 else if (energy >= (*(fParamHigh[Z]))[1]) { <<
265 cs = x3 * (fCrossSection->GetElementData(Z <<
266 } <<
267 // Tabulated values below k-shell ionization <<
268 else { <<
269 cs = x3 * (fCrossSectionLE->GetElementData <<
270 } <<
271 if (verboseLevel > 1) { <<
272 G4cout << "G4LivermorePhotoElectricModel: <<
273 << " cross(barn)= " << cs / barn << <<
274 } <<
275 return cs; 168 return cs;
276 } 169 }
277 170
278 //....oooOO0OOooo........oooOO0OOooo........oo 171 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
279 172
280 void G4LivermorePhotoElectricModel::SampleSeco << 173 void
281 << 174 G4LivermorePhotoElectricModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
282 << 175 const G4MaterialCutsCouple* couple,
283 << 176 const G4DynamicParticle* aDynamicGamma,
284 { << 177 G4double,
285 G4double gammaEnergy = aDynamicGamma->GetKin << 178 G4double)
286 if (verboseLevel > 3) { << 179 {
287 G4cout << "G4LivermorePhotoElectricModel:: << 180
288 << gammaEnergy / keV << G4endl; << 181 // Fluorescence generated according to:
289 } << 182 // J. Stepanek ,"A program to determine the radiation spectra due to a single atomic
>> 183 // subshell ionisation by a particle or due to deexcitation or decay of radionuclides",
>> 184 // Comp. Phys. Comm. 1206 pp 1-1-9 (1997)
>> 185
>> 186 if (verboseLevel > 3)
>> 187 G4cout << "Calling SampleSecondaries() of G4LivermorePhotoElectricModel" << G4endl;
290 188
>> 189 G4double photonEnergy = aDynamicGamma->GetKineticEnergy();
>> 190
291 // kill incident photon 191 // kill incident photon
292 fParticleChange->ProposeTrackStatus(fStopAnd <<
293 fParticleChange->SetProposedKineticEnergy(0. 192 fParticleChange->SetProposedKineticEnergy(0.);
>> 193 fParticleChange->ProposeTrackStatus(fStopAndKill);
294 194
295 // low-energy photo-effect in water - full a << 195 // low-energy gamma is absorpted by this process
296 const G4Material* material = couple->GetMate << 196 if (photonEnergy <= lowEnergyLimit)
297 if (fWater && (material == fWater || materia << 197 {
298 if (gammaEnergy <= fWaterEnergyLimit) { << 198 fParticleChange->ProposeLocalEnergyDeposit(photonEnergy);
299 fParticleChange->ProposeLocalEnergyDepos <<
300 return; 199 return;
301 } 200 }
302 } << 201
303 <<
304 // Returns the normalized direction of the m 202 // Returns the normalized direction of the momentum
305 G4ThreeVector photonDirection = aDynamicGamm << 203 G4ThreeVector photonDirection = aDynamicGamma->GetMomentumDirection();
306 204
307 // Select randomly one element in the curren 205 // Select randomly one element in the current material
308 const G4Element* elm = SelectRandomAtom(mate << 206 // G4int Z = crossSectionHandler->SelectRandomAtom(couple,photonEnergy);
309 G4int Z = elm->GetZasInt(); << 207 const G4ParticleDefinition* particle = aDynamicGamma->GetDefinition();
>> 208 const G4Element* elm = SelectRandomAtom(couple->GetMaterial(),particle,photonEnergy);
>> 209 G4int Z = (G4int)elm->GetZ();
>> 210
>> 211 // Select the ionised shell in the current atom according to shell cross sections
>> 212 size_t shellIndex = shellCrossSectionHandler->SelectRandomShell(Z,photonEnergy);
>> 213
>> 214 // Retrieve the corresponding identifier and binding energy of the selected shell
>> 215 const G4AtomicTransitionManager* transitionManager = G4AtomicTransitionManager::Instance();
>> 216 const G4AtomicShell* shell = transitionManager->Shell(Z,shellIndex);
>> 217 G4double bindingEnergy = shell->BindingEnergy();
>> 218 G4int shellId = shell->ShellId();
310 219
311 // Select the ionised shell in the current a << 220 // Primary outcoming electron
312 // cross sections << 221 G4double eKineticEnergy = photonEnergy - bindingEnergy;
313 222
314 // If element was not initialised gamma shou << 223 // There may be cases where the binding energy of the selected shell is > photon energy
315 if (Z >= ZMAXPE || fCrossSection->GetElement << 224 // In such cases do not generate secondaries
316 fParticleChange->ProposeLocalEnergyDeposit << 225 if (eKineticEnergy > 0.)
317 return; << 226 {
318 } << 227 // Calculate direction of the photoelectron
>> 228 G4ThreeVector gammaPolarization = aDynamicGamma->GetPolarization();
>> 229 G4ThreeVector electronDirection =
>> 230 ElectronAngularGenerator->GetPhotoElectronDirection(photonDirection,
>> 231 eKineticEnergy,
>> 232 gammaPolarization,
>> 233 shellId);
319 234
320 // SAMPLING OF THE SHELL INDEX << 235 // The electron is created ...
321 std::size_t shellIdx = 0; << 236 G4DynamicParticle* electron = new G4DynamicParticle (G4Electron::Electron(),
322 std::size_t nn = fNShellsUsed[Z]; << 237 electronDirection,
323 if (nn > 1) { << 238 eKineticEnergy);
324 if (gammaEnergy >= (*(fParamHigh[Z]))[0]) << 239 fvect->push_back(electron);
325 G4double x1 = 1.0 / gammaEnergy; <<
326 G4double x2 = x1 * x1; <<
327 G4double x3 = x2 * x1; <<
328 G4double x4 = x3 * x1; <<
329 G4double x5 = x4 * x1; <<
330 std::size_t idx = nn * 7 - 5; <<
331 // when do sampling common factors are n <<
332 // so cross section is not real <<
333 <<
334 G4double rand = G4UniformRand(); <<
335 G4double cs0 = rand * <<
336 ((*(fParamHigh[Z]))[idx] + x1 * (*(fPa <<
337 + x2 * (*(fParamHigh[Z]))[idx + 2] + x <<
338 + x4 * (*(fParamHigh[Z]))[idx + 4] + x <<
339 <<
340 for (shellIdx = 0; shellIdx < nn; ++shel <<
341 idx = shellIdx * 7 + 2; <<
342 if (gammaEnergy > (*(fParamHigh[Z]))[i <<
343 G4double cs = (*(fParamHigh[Z]))[idx <<
344 + x2 * (*(fParamHigh[Z]))[idx + 2] <<
345 + x4 * (*(fParamHigh[Z]))[idx + 4] <<
346 <<
347 if (cs >= cs0) { <<
348 break; <<
349 } <<
350 } <<
351 } <<
352 if (shellIdx >= nn) { <<
353 shellIdx = nn - 1; <<
354 } <<
355 } 240 }
356 else if (gammaEnergy >= (*(fParamLow[Z]))[ << 241 else
357 G4double x1 = 1.0 / gammaEnergy; << 242 {
358 G4double x2 = x1 * x1; << 243 bindingEnergy = photonEnergy;
359 G4double x3 = x2 * x1; <<
360 G4double x4 = x3 * x1; <<
361 G4double x5 = x4 * x1; <<
362 std::size_t idx = nn * 7 - 5; <<
363 // when do sampling common factors are n <<
364 // so cross section is not real <<
365 G4double cs0 = G4UniformRand() * <<
366 ((*(fParamLow[Z]))[idx] + x1 * (*(fPar <<
367 + x2 * (*(fParamLow[Z]))[idx + 2] + x3 <<
368 + x4 * (*(fParamLow[Z]))[idx + 4] + x5 <<
369 for (shellIdx = 0; shellIdx < nn; ++shel <<
370 idx = shellIdx * 7 + 2; <<
371 if (gammaEnergy > (*(fParamLow[Z]))[id <<
372 G4double cs = (*(fParamLow[Z]))[idx] <<
373 + x2 * (*(fParamLow[Z]))[idx + 2] <<
374 + x4 * (*(fParamLow[Z]))[idx + 4] <<
375 if (cs >= cs0) { <<
376 break; <<
377 } <<
378 } <<
379 } <<
380 if (shellIdx >= nn) { <<
381 shellIdx = nn - 1; <<
382 } <<
383 } 244 }
384 else { <<
385 // when do sampling common factors are n <<
386 // so cross section is not real <<
387 G4double cs = G4UniformRand(); <<
388 <<
389 if (gammaEnergy >= (*(fParamHigh[Z]))[1] <<
390 // above K-shell binding energy <<
391 cs *= fCrossSection->GetElementData(Z) <<
392 } <<
393 else { <<
394 // below K-shell binding energy <<
395 cs *= fCrossSectionLE->GetElementData( <<
396 } <<
397 245
398 for (G4int j = 0; j < (G4int)nn; ++j) { << 246 // deexcitation
399 shellIdx = (std::size_t)fCrossSection- << 247 if(DeexcitationFlag() && Z > 5) {
400 if (gammaEnergy > (*(fParamLow[Z]))[7 <<
401 cs -= fCrossSection->GetValueForComp <<
402 } <<
403 if (cs <= 0.0 || j + 1 == (G4int)nn) { <<
404 break; <<
405 } <<
406 } <<
407 } <<
408 } <<
409 // END: SAMPLING OF THE SHELL <<
410 <<
411 G4double bindingEnergy = (*(fParamHigh[Z]))[ <<
412 const G4AtomicShell* shell = nullptr; <<
413 248
414 // no de-excitation from the last shell << 249 const G4ProductionCutsTable* theCoupleTable=
415 if (fDeexcitationActive && shellIdx + 1 < nn << 250 G4ProductionCutsTable::GetProductionCutsTable();
416 auto as = G4AtomicShellEnumerator(shellIdx <<
417 shell = fAtomDeexcitation->GetAtomicShell( <<
418 } <<
419 <<
420 // If binding energy of the selected shell i <<
421 // do not generate secondaries <<
422 if (gammaEnergy < bindingEnergy) { <<
423 fParticleChange->ProposeLocalEnergyDeposit <<
424 return; <<
425 } <<
426 251
427 // Primary outcoming electron << 252 size_t index = couple->GetIndex();
428 G4double eKineticEnergy = gammaEnergy - bind << 253 G4double cutg = (*(theCoupleTable->GetEnergyCutsVector(0)))[index];
429 G4double edep = bindingEnergy; << 254 G4double cute = (*(theCoupleTable->GetEnergyCutsVector(1)))[index];
430 255
431 // Calculate direction of the photoelectron << 256 // Generation of fluorescence
432 G4ThreeVector electronDirection = GetAngular << 257 // Data in EADL are available only for Z > 5
433 aDynamicGamma, eKineticEnergy, (G4int)shel << 258 // Protection to avoid generating photons in the unphysical case of
434 << 259 // shell binding energy > photon energy
435 // The electron is created << 260 if (bindingEnergy > cutg || bindingEnergy > cute)
436 auto electron = << 261 {
437 new G4DynamicParticle(theElectron, electro << 262 G4DynamicParticle* aPhoton;
438 fvect->push_back(electron); << 263 deexcitationManager.SetCutForSecondaryPhotons(cutg);
439 << 264 deexcitationManager.SetCutForAugerElectrons(cute);
440 // Sample deexcitation << 265
441 if (nullptr != shell) { << 266 std::vector<G4DynamicParticle*>* photonVector =
442 G4int index = couple->GetIndex(); << 267 deexcitationManager.GenerateParticles(Z,shellId);
443 if (fAtomDeexcitation->CheckDeexcitationAc << 268 size_t nTotPhotons = photonVector->size();
444 std::size_t nbefore = fvect->size(); << 269 for (size_t k=0; k<nTotPhotons; k++)
445 << 270 {
446 fAtomDeexcitation->GenerateParticles(fve << 271 aPhoton = (*photonVector)[k];
447 std::size_t nafter = fvect->size(); << 272 if (aPhoton)
448 if (nafter > nbefore) { << 273 {
449 G4double esec = 0.0; << 274 G4double itsEnergy = aPhoton->GetKineticEnergy();
450 for (std::size_t j = nbefore; j < naft << 275 if (itsEnergy <= bindingEnergy)
451 G4double e = ((*fvect)[j])->GetKinet << 276 {
452 if (esec + e > edep) { << 277 // Local energy deposit is given as the sum of the
453 // correct energy in order to have << 278 // energies of incident photons minus the energies
454 e = edep - esec; << 279 // of the outcoming fluorescence photons
455 ((*fvect)[j])->SetKineticEnergy(e) << 280 bindingEnergy -= itsEnergy;
456 esec += e; << 281 fvect->push_back(aPhoton);
457 // delete the rest of secondaries << 282 }
458 for (std::size_t jj = nafter - 1; << 283 else
459 delete (*fvect)[jj]; << 284 {
460 fvect->pop_back(); << 285 // abnormal case of energy non-conservation
461 } << 286 delete aPhoton;
462 break; << 287 (*photonVector)[k] = 0;
463 } << 288 }
464 esec += e; << 289 }
465 } << 290 }
466 edep -= esec; << 291 delete photonVector;
467 } 292 }
468 } <<
469 } <<
470 // energy balance - excitation energy left <<
471 if (edep > 0.0) { <<
472 fParticleChange->ProposeLocalEnergyDeposit <<
473 } 293 }
>> 294 // excitation energy left
>> 295 fParticleChange->ProposeLocalEnergyDeposit(bindingEnergy);
474 } 296 }
475 297
476 //....oooOO0OOooo........oooOO0OOooo........oo 298 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
477 299
478 const G4String& G4LivermorePhotoElectricModel: << 300 void G4LivermorePhotoElectricModel::SetCutForLowEnSecPhotons(G4double cut)
479 { 301 {
480 // no check in this method - environment var << 302 cutForLowEnergySecondaryPhotons = cut;
481 if (fDataDirectory.empty()) { << 303 deexcitationManager.SetCutForSecondaryPhotons(cut);
482 auto param = G4EmParameters::Instance(); <<
483 std::ostringstream ost; <<
484 if (param->LivermoreDataDir() == "livermor <<
485 ost << param->GetDirLEDATA() << "/liverm <<
486 } <<
487 else { <<
488 ost << param->GetDirLEDATA() << "/epics2 <<
489 } <<
490 fDataDirectory = ost.str(); <<
491 } <<
492 return fDataDirectory; <<
493 } 304 }
494 305
495 //....oooOO0OOooo........oooOO0OOooo........oo 306 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
496 307
497 void G4LivermorePhotoElectricModel::ReadData(G << 308 void G4LivermorePhotoElectricModel::SetCutForLowEnSecElectrons(G4double cut)
498 { 309 {
499 if (Z <= 0 || Z >= ZMAXPE) { << 310 cutForLowEnergySecondaryElectrons = cut;
500 G4cout << "G4LivermorePhotoElectricModel:: << 311 deexcitationManager.SetCutForAugerElectrons(cut);
501 << Z << " is out of range - request ignor <<
502 return; <<
503 } <<
504 if (verboseLevel > 1) { <<
505 G4cout << "G4LivermorePhotoElectricModel:: <<
506 } <<
507 <<
508 if (fCrossSection->GetElementData(Z) != null <<
509 return; <<
510 } <<
511 <<
512 // spline for photoeffect total x-section ab <<
513 // but below the parameterized ones <<
514 <<
515 G4bool spline = (G4EmParameters::Instance()- <<
516 G4int number = G4EmParameters::Instance()->N <<
517 auto pv = new G4PhysicsFreeVector(spline); <<
518 <<
519 // fDataDirectory will be defined after thes <<
520 std::ostringstream ost; <<
521 ost << FindDirectoryPath() << "pe-cs-" << Z <<
522 std::ifstream fin(ost.str().c_str()); <<
523 if (!fin.is_open()) { <<
524 G4ExceptionDescription ed; <<
525 ed << "G4LivermorePhotoElectricModel data <<
526 << ost.str().c_str() << "> is not opene <<
527 G4Exception("G4LivermorePhotoElectricModel <<
528 "G4LEDATA version should be G4 <<
529 return; <<
530 } <<
531 if (verboseLevel > 3) { <<
532 G4cout << "File " << ost.str().c_str() << <<
533 << G4endl; <<
534 } <<
535 pv->Retrieve(fin, true); <<
536 pv->ScaleVector(MeV, barn); <<
537 pv->FillSecondDerivatives(); <<
538 pv->EnableLogBinSearch(number); <<
539 fCrossSection->InitialiseForElement(Z, pv); <<
540 fin.close(); <<
541 <<
542 // read high-energy fit parameters <<
543 fParamHigh[Z] = new std::vector<G4double>; <<
544 G4int n1 = 0; <<
545 G4int n2 = 0; <<
546 G4double x; <<
547 std::ostringstream ost1; <<
548 ost1 << fDataDirectory << "pe-high-" << Z << <<
549 std::ifstream fin1(ost1.str().c_str()); <<
550 if (!fin1.is_open()) { <<
551 G4ExceptionDescription ed; <<
552 ed << "G4LivermorePhotoElectricModel data <<
553 << ost1.str().c_str() << "> is not open <<
554 G4Exception("G4LivermorePhotoElectricModel <<
555 "G4LEDATA version should be G4 <<
556 return; <<
557 } <<
558 if (verboseLevel > 3) { <<
559 G4cout << "File " << ost1.str().c_str() << <<
560 << G4endl; <<
561 } <<
562 fin1 >> n1; <<
563 if (fin1.fail()) { <<
564 return; <<
565 } <<
566 if (0 > n1 || n1 >= INT_MAX) { <<
567 n1 = 0; <<
568 } <<
569 <<
570 fin1 >> n2; <<
571 if (fin1.fail()) { <<
572 return; <<
573 } <<
574 if (0 > n2 || n2 >= INT_MAX) { <<
575 n2 = 0; <<
576 } <<
577 <<
578 fin1 >> x; <<
579 if (fin1.fail()) { <<
580 return; <<
581 } <<
582 <<
583 fNShells[Z] = n1; <<
584 fParamHigh[Z]->reserve(7 * n1 + 1); <<
585 fParamHigh[Z]->push_back(x * MeV); <<
586 for (G4int i = 0; i < n1; ++i) { <<
587 for (G4int j = 0; j < 7; ++j) { <<
588 fin1 >> x; <<
589 if (0 == j) { <<
590 x *= MeV; <<
591 } <<
592 else { <<
593 x *= barn; <<
594 } <<
595 fParamHigh[Z]->push_back(x); <<
596 } <<
597 } <<
598 fin1.close(); <<
599 <<
600 // read low-energy fit parameters <<
601 fParamLow[Z] = new std::vector<G4double>; <<
602 G4int n1_low = 0; <<
603 G4int n2_low = 0; <<
604 G4double x_low; <<
605 std::ostringstream ost1_low; <<
606 ost1_low << fDataDirectory << "pe-low-" << Z <<
607 std::ifstream fin1_low(ost1_low.str().c_str( <<
608 if (!fin1_low.is_open()) { <<
609 G4ExceptionDescription ed; <<
610 ed << "G4LivermorePhotoElectricModel data <<
611 << "> is not opened!" << G4endl; <<
612 G4Exception("G4LivermorePhotoElectricModel <<
613 "G4LEDATA version should be G4 <<
614 return; <<
615 } <<
616 if (verboseLevel > 3) { <<
617 G4cout << "File " << ost1_low.str().c_str( <<
618 << G4endl; <<
619 } <<
620 fin1_low >> n1_low; <<
621 if (fin1_low.fail()) { <<
622 return; <<
623 } <<
624 if (0 > n1_low || n1_low >= INT_MAX) { <<
625 n1_low = 0; <<
626 } <<
627 <<
628 fin1_low >> n2_low; <<
629 if (fin1_low.fail()) { <<
630 return; <<
631 } <<
632 if (0 > n2_low || n2_low >= INT_MAX) { <<
633 n2_low = 0; <<
634 } <<
635 <<
636 fin1_low >> x_low; <<
637 if (fin1_low.fail()) { <<
638 return; <<
639 } <<
640 <<
641 fNShells[Z] = n1_low; <<
642 fParamLow[Z]->reserve(7 * n1_low + 1); <<
643 fParamLow[Z]->push_back(x_low * MeV); <<
644 for (G4int i = 0; i < n1_low; ++i) { <<
645 for (G4int j = 0; j < 7; ++j) { <<
646 fin1_low >> x_low; <<
647 if (0 == j) { <<
648 x_low *= MeV; <<
649 } <<
650 else { <<
651 x_low *= barn; <<
652 } <<
653 fParamLow[Z]->push_back(x_low); <<
654 } <<
655 } <<
656 fin1_low.close(); <<
657 <<
658 // there is a possibility to use only main s <<
659 if (nShellLimit < n2) { <<
660 n2 = nShellLimit; <<
661 } <<
662 fCrossSection->InitialiseForComponent(Z, n2) <<
663 fNShellsUsed[Z] = n2; <<
664 <<
665 if (1 < n2) { <<
666 std::ostringstream ost2; <<
667 ost2 << fDataDirectory << "pe-ss-cs-" << Z <<
668 std::ifstream fin2(ost2.str().c_str()); <<
669 if (!fin2.is_open()) { <<
670 G4ExceptionDescription ed; <<
671 ed << "G4LivermorePhotoElectricModel dat <<
672 << G4endl; <<
673 G4Exception("G4LivermorePhotoElectricMod <<
674 "G4LEDATA version should be <<
675 return; <<
676 } <<
677 if (verboseLevel > 3) { <<
678 G4cout << "File " << ost2.str().c_str() <<
679 << G4endl; <<
680 } <<
681 <<
682 G4int n3, n4; <<
683 G4double y; <<
684 for (G4int i = 0; i < n2; ++i) { <<
685 fin2 >> x >> y >> n3 >> n4; <<
686 auto v = new G4PhysicsFreeVector(n3, x, <<
687 for (G4int j = 0; j < n3; ++j) { <<
688 fin2 >> x >> y; <<
689 v->PutValues(j, x * CLHEP::MeV, y * CL <<
690 } <<
691 v->EnableLogBinSearch(number); <<
692 fCrossSection->AddComponent(Z, n4, v); <<
693 } <<
694 fin2.close(); <<
695 } <<
696 <<
697 // no spline for photoeffect total x-section <<
698 if (1 < fNShells[Z]) { <<
699 auto pv1 = new G4PhysicsFreeVector(false); <<
700 std::ostringstream ost3; <<
701 ost3 << fDataDirectory << "pe-le-cs-" << Z <<
702 std::ifstream fin3(ost3.str().c_str()); <<
703 if (!fin3.is_open()) { <<
704 G4ExceptionDescription ed; <<
705 ed << "G4LivermorePhotoElectricModel dat <<
706 << G4endl; <<
707 G4Exception("G4LivermorePhotoElectricMod <<
708 "G4LEDATA version should be <<
709 return; <<
710 } <<
711 if (verboseLevel > 3) { <<
712 G4cout << "File " << ost3.str().c_str() <<
713 << G4endl; <<
714 } <<
715 pv1->Retrieve(fin3, true); <<
716 pv1->ScaleVector(CLHEP::MeV, CLHEP::barn); <<
717 pv1->EnableLogBinSearch(number); <<
718 fCrossSectionLE->InitialiseForElement(Z, p <<
719 fin3.close(); <<
720 } <<
721 } 312 }
722 313
723 //....oooOO0OOooo........oooOO0OOooo........oo 314 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
724 315
725 G4double G4LivermorePhotoElectricModel::GetBin << 316 void G4LivermorePhotoElectricModel::ActivateAuger(G4bool val)
726 { 317 {
727 if (Z < 1 || Z >= ZMAXPE) { << 318 deexcitationManager.ActivateAugerElectronProduction(val);
728 return -1; <<
729 } // If Z is out of the supported return 0 <<
730 <<
731 InitialiseOnFly(Z); <<
732 if (fCrossSection->GetElementData(Z) == null <<
733 shell < 0 || shell >= fNShellsUsed[Z]) { <<
734 return -1; <<
735 } <<
736 <<
737 if (Z > 2) { <<
738 return fCrossSection->GetComponentDataByIn <<
739 } <<
740 else { <<
741 return fCrossSection->GetElementData(Z)->E <<
742 } <<
743 } 319 }
744 320
745 //....oooOO0OOooo........oooOO0OOooo........oo << 321 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
746 322
747 void << 323 void
748 G4LivermorePhotoElectricModel::InitialiseForEl << 324 G4LivermorePhotoElectricModel::SetAngularGenerator(G4VPhotoElectricAngularDistribution* dist)
749 { 325 {
750 if (fCrossSection == nullptr) { << 326 ElectronAngularGenerator = dist;
751 fCrossSection = new G4ElementData(ZMAXPE); << 327 ElectronAngularGenerator->PrintGeneratorInformation();
752 fCrossSection->SetName("PhotoEffXS"); <<
753 fCrossSectionLE = new G4ElementData(ZMAXPE <<
754 fCrossSectionLE->SetName("PhotoEffLowXS"); <<
755 } <<
756 ReadData(Z); <<
757 } 328 }
758 329
759 //....oooOO0OOooo........oooOO0OOooo........oo << 330 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
760 331
761 void G4LivermorePhotoElectricModel::Initialise << 332 void G4LivermorePhotoElectricModel::SetAngularGenerator(const G4String& name)
762 { 333 {
763 if (fCrossSection->GetElementData(Z) == null << 334 if (name == "default")
764 G4AutoLock l(&livPhotoeffMutex); << 335 {
765 if (fCrossSection->GetElementData(Z) == nu << 336 delete ElectronAngularGenerator;
766 ReadData(Z); << 337 ElectronAngularGenerator =
>> 338 new G4PhotoElectricAngularGeneratorSimple("GEANT4LowEnergySimpleGenerator");
>> 339 generatorName = name;
767 } 340 }
768 l.unlock(); << 341 else if (name == "standard")
769 } << 342 {
>> 343 delete ElectronAngularGenerator;
>> 344 ElectronAngularGenerator =
>> 345 new G4PhotoElectricAngularGeneratorSauterGavrila("GEANT4SauterGavrilaGenerator");
>> 346 generatorName = name;
>> 347 }
>> 348 else if (name == "polarized")
>> 349 {
>> 350 delete ElectronAngularGenerator;
>> 351 ElectronAngularGenerator =
>> 352 new G4PhotoElectricAngularGeneratorPolarized("GEANT4LowEnergyPolarizedGenerator");
>> 353 generatorName = name;
>> 354 }
>> 355 else
>> 356 {
>> 357 G4Exception("G4LowEnergyPhotoElectric::SetAngularGenerator - generator does not exist");
>> 358 }
>> 359
>> 360 ElectronAngularGenerator->PrintGeneratorInformation();
770 } 361 }
771 362
772 //....oooOO0OOooo........oooOO0OOooo........oo <<
773 363