[1058] | 1 | // |
---|
| 2 | // ******************************************************************** |
---|
| 3 | // * License and Disclaimer * |
---|
| 4 | // * * |
---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
| 9 | // * include a list of copyright holders. * |
---|
| 10 | // * * |
---|
| 11 | // * Neither the authors of this software system, nor their employing * |
---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
---|
| 13 | // * work make any representation or warranty, express or implied, * |
---|
| 14 | // * regarding this software system or assume any liability for its * |
---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
---|
| 17 | // * * |
---|
| 18 | // * This code implementation is the result of the scientific and * |
---|
| 19 | // * technical work of the GEANT4 collaboration. * |
---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
---|
| 22 | // * use in resulting scientific publications, and indicate your * |
---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
| 24 | // ******************************************************************** |
---|
| 25 | // |
---|
[1347] | 26 | // $Id: G4LivermoreIonisationModel.cc,v 1.13 2010/12/02 16:06:29 vnivanch Exp $ |
---|
| 27 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
---|
[1058] | 28 | // |
---|
| 29 | // Author: Luciano Pandola |
---|
| 30 | // |
---|
| 31 | // History: |
---|
| 32 | // -------- |
---|
| 33 | // 12 Jan 2009 L Pandola Migration from process to model |
---|
| 34 | // 03 Mar 2009 L Pandola Bug fix (release memory in the destructor) |
---|
| 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 | // - simplify sampling of deexcitation by using cut in energy |
---|
| 39 | // - set activation of Auger "false" |
---|
| 40 | // - remove initialisation of element selectors |
---|
| 41 | // 19 May 2009 L Pandola Explicitely set to zero pointers deleted in |
---|
| 42 | // Initialise(), since they might be checked later on |
---|
[1192] | 43 | // 23 Oct 2009 L Pandola |
---|
| 44 | // - atomic deexcitation managed via G4VEmModel::DeexcitationFlag() is |
---|
| 45 | // set as "true" (default would be false) |
---|
[1340] | 46 | // 12 Oct 2010 L Pandola |
---|
| 47 | // - add debugging information about energy in |
---|
| 48 | // SampleDeexcitationAlongStep() |
---|
| 49 | // - generate fluorescence SampleDeexcitationAlongStep() only above |
---|
| 50 | // the cuts. |
---|
| 51 | // |
---|
[1058] | 52 | // |
---|
| 53 | |
---|
| 54 | #include "G4LivermoreIonisationModel.hh" |
---|
| 55 | #include "G4ParticleDefinition.hh" |
---|
| 56 | #include "G4MaterialCutsCouple.hh" |
---|
| 57 | #include "G4ProductionCutsTable.hh" |
---|
| 58 | #include "G4DynamicParticle.hh" |
---|
| 59 | #include "G4Element.hh" |
---|
| 60 | #include "G4AtomicTransitionManager.hh" |
---|
| 61 | #include "G4AtomicDeexcitation.hh" |
---|
| 62 | #include "G4AtomicShell.hh" |
---|
| 63 | #include "G4Gamma.hh" |
---|
| 64 | #include "G4Electron.hh" |
---|
| 65 | #include "G4CrossSectionHandler.hh" |
---|
| 66 | #include "G4ProcessManager.hh" |
---|
| 67 | #include "G4VEMDataSet.hh" |
---|
| 68 | #include "G4EMDataSet.hh" |
---|
| 69 | #include "G4eIonisationCrossSectionHandler.hh" |
---|
| 70 | #include "G4eIonisationSpectrum.hh" |
---|
| 71 | #include "G4VDataSetAlgorithm.hh" |
---|
| 72 | #include "G4SemiLogInterpolation.hh" |
---|
| 73 | #include "G4ShellVacancy.hh" |
---|
| 74 | #include "G4VDataSetAlgorithm.hh" |
---|
| 75 | #include "G4LogLogInterpolation.hh" |
---|
| 76 | #include "G4CompositeEMDataSet.hh" |
---|
| 77 | |
---|
| 78 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 79 | |
---|
| 80 | |
---|
| 81 | G4LivermoreIonisationModel::G4LivermoreIonisationModel(const G4ParticleDefinition*, |
---|
| 82 | const G4String& nam) |
---|
| 83 | :G4VEmModel(nam),isInitialised(false),crossSectionHandler(0), |
---|
| 84 | energySpectrum(0),shellVacancy(0) |
---|
| 85 | { |
---|
| 86 | fIntrinsicLowEnergyLimit = 10.0*eV; |
---|
| 87 | fIntrinsicHighEnergyLimit = 100.0*GeV; |
---|
| 88 | fNBinEnergyLoss = 360; |
---|
| 89 | // SetLowEnergyLimit(fIntrinsicLowEnergyLimit); |
---|
| 90 | SetHighEnergyLimit(fIntrinsicHighEnergyLimit); |
---|
| 91 | // |
---|
| 92 | verboseLevel = 0; |
---|
[1192] | 93 | //By default: use deexcitation, not auger |
---|
| 94 | SetDeexcitationFlag(true); |
---|
[1058] | 95 | ActivateAuger(false); |
---|
| 96 | // |
---|
[1315] | 97 | // |
---|
[1058] | 98 | // Notice: the fluorescence along step is generated only if it is |
---|
| 99 | // set by the PROCESS (e.g. G4eIonisation) via the command |
---|
| 100 | // process->ActivateDeexcitation(true); |
---|
| 101 | // |
---|
| 102 | } |
---|
| 103 | |
---|
| 104 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 105 | |
---|
| 106 | G4LivermoreIonisationModel::~G4LivermoreIonisationModel() |
---|
| 107 | { |
---|
| 108 | if (energySpectrum) delete energySpectrum; |
---|
| 109 | if (crossSectionHandler) delete crossSectionHandler; |
---|
| 110 | if (shellVacancy) delete shellVacancy; |
---|
| 111 | } |
---|
| 112 | |
---|
| 113 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 114 | |
---|
| 115 | void G4LivermoreIonisationModel::Initialise(const G4ParticleDefinition* particle, |
---|
| 116 | const G4DataVector& cuts) |
---|
| 117 | { |
---|
| 118 | //Check that the Livermore Ionisation is NOT attached to e+ |
---|
| 119 | if (particle != G4Electron::Electron()) |
---|
| 120 | { |
---|
| 121 | G4cout << "ERROR: Livermore Ionisation Model is applicable only to electrons" << G4endl; |
---|
| 122 | G4cout << "It cannot be registered to " << particle->GetParticleName() << G4endl; |
---|
| 123 | G4Exception(); |
---|
| 124 | } |
---|
| 125 | |
---|
| 126 | //Read energy spectrum |
---|
| 127 | if (energySpectrum) |
---|
| 128 | { |
---|
| 129 | delete energySpectrum; |
---|
| 130 | energySpectrum = 0; |
---|
| 131 | } |
---|
| 132 | energySpectrum = new G4eIonisationSpectrum(); |
---|
[1340] | 133 | if (verboseLevel > 3) |
---|
[1058] | 134 | G4cout << "G4VEnergySpectrum is initialized" << G4endl; |
---|
| 135 | |
---|
| 136 | //Initialize cross section handler |
---|
| 137 | if (crossSectionHandler) |
---|
| 138 | { |
---|
| 139 | delete crossSectionHandler; |
---|
| 140 | crossSectionHandler = 0; |
---|
| 141 | } |
---|
| 142 | |
---|
| 143 | G4VDataSetAlgorithm* interpolation = new G4SemiLogInterpolation(); |
---|
| 144 | crossSectionHandler = new G4eIonisationCrossSectionHandler(energySpectrum,interpolation, |
---|
| 145 | LowEnergyLimit(),HighEnergyLimit(), |
---|
| 146 | fNBinEnergyLoss); |
---|
| 147 | crossSectionHandler->Clear(); |
---|
| 148 | crossSectionHandler->LoadShellData("ioni/ion-ss-cs-"); |
---|
| 149 | //This is used to retrieve cross section values later on |
---|
[1347] | 150 | G4VEMDataSet* emdata = |
---|
| 151 | crossSectionHandler->BuildMeanFreePathForMaterials(&cuts); |
---|
| 152 | //The method BuildMeanFreePathForMaterials() is required here only to force |
---|
| 153 | //the building of an internal table: the output pointer can be deleted |
---|
| 154 | delete emdata; |
---|
| 155 | |
---|
[1058] | 156 | //Fluorescence data |
---|
| 157 | transitionManager = G4AtomicTransitionManager::Instance(); |
---|
| 158 | if (shellVacancy) delete shellVacancy; |
---|
| 159 | shellVacancy = new G4ShellVacancy(); |
---|
| 160 | InitialiseFluorescence(); |
---|
| 161 | |
---|
| 162 | if (verboseLevel > 0) |
---|
| 163 | { |
---|
| 164 | G4cout << "Livermore Ionisation model is initialized " << G4endl |
---|
| 165 | << "Energy range: " |
---|
| 166 | << LowEnergyLimit() / keV << " keV - " |
---|
| 167 | << HighEnergyLimit() / GeV << " GeV" |
---|
| 168 | << G4endl; |
---|
| 169 | } |
---|
| 170 | |
---|
[1340] | 171 | if (verboseLevel > 3) |
---|
[1058] | 172 | { |
---|
| 173 | G4cout << "Cross section data: " << G4endl; |
---|
| 174 | crossSectionHandler->PrintData(); |
---|
| 175 | G4cout << "Parameters: " << G4endl; |
---|
| 176 | energySpectrum->PrintData(); |
---|
| 177 | } |
---|
| 178 | |
---|
| 179 | if(isInitialised) return; |
---|
| 180 | fParticleChange = GetParticleChangeForLoss(); |
---|
| 181 | isInitialised = true; |
---|
| 182 | } |
---|
| 183 | |
---|
| 184 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 185 | |
---|
| 186 | G4double G4LivermoreIonisationModel::MinEnergyCut(const G4ParticleDefinition*, |
---|
| 187 | const G4MaterialCutsCouple*) |
---|
| 188 | { |
---|
| 189 | return 250.*eV; |
---|
| 190 | } |
---|
| 191 | |
---|
| 192 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 193 | |
---|
| 194 | G4double G4LivermoreIonisationModel::ComputeCrossSectionPerAtom(const G4ParticleDefinition*, |
---|
| 195 | G4double energy, |
---|
| 196 | G4double Z, G4double, |
---|
| 197 | G4double cutEnergy, |
---|
| 198 | G4double) |
---|
| 199 | { |
---|
| 200 | G4int iZ = (G4int) Z; |
---|
| 201 | if (!crossSectionHandler) |
---|
| 202 | { |
---|
| 203 | G4cout << "G4LivermoreIonisationModel::ComputeCrossSectionPerAtom" << G4endl; |
---|
| 204 | G4cout << "The cross section handler is not correctly initialized" << G4endl; |
---|
| 205 | G4Exception(); |
---|
[1347] | 206 | return 0; |
---|
[1058] | 207 | } |
---|
| 208 | |
---|
| 209 | //The cut is already included in the crossSectionHandler |
---|
| 210 | G4double cs = |
---|
| 211 | crossSectionHandler->GetCrossSectionAboveThresholdForElement(energy,cutEnergy,iZ); |
---|
| 212 | |
---|
| 213 | if (verboseLevel > 1) |
---|
| 214 | { |
---|
| 215 | G4cout << "G4LivermoreIonisationModel " << G4endl; |
---|
| 216 | G4cout << "Cross section for delta emission > " << cutEnergy/keV << " keV at " << |
---|
| 217 | energy/keV << " keV and Z = " << iZ << " --> " << cs/barn << " barn" << G4endl; |
---|
| 218 | } |
---|
| 219 | return cs; |
---|
| 220 | } |
---|
| 221 | |
---|
| 222 | |
---|
| 223 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 224 | |
---|
| 225 | G4double G4LivermoreIonisationModel::ComputeDEDXPerVolume(const G4Material* material, |
---|
| 226 | const G4ParticleDefinition* , |
---|
| 227 | G4double kineticEnergy, |
---|
| 228 | G4double cutEnergy) |
---|
| 229 | { |
---|
| 230 | G4double sPower = 0.0; |
---|
| 231 | |
---|
| 232 | const G4ElementVector* theElementVector = material->GetElementVector(); |
---|
| 233 | size_t NumberOfElements = material->GetNumberOfElements() ; |
---|
| 234 | const G4double* theAtomicNumDensityVector = |
---|
| 235 | material->GetAtomicNumDensityVector(); |
---|
| 236 | |
---|
| 237 | // loop for elements in the material |
---|
| 238 | for (size_t iel=0; iel<NumberOfElements; iel++ ) |
---|
| 239 | { |
---|
| 240 | G4int iZ = (G4int)((*theElementVector)[iel]->GetZ()); |
---|
| 241 | G4int nShells = transitionManager->NumberOfShells(iZ); |
---|
| 242 | for (G4int n=0; n<nShells; n++) |
---|
| 243 | { |
---|
| 244 | G4double e = energySpectrum->AverageEnergy(iZ, 0.0,cutEnergy, |
---|
| 245 | kineticEnergy, n); |
---|
| 246 | G4double cs= crossSectionHandler->FindValue(iZ,kineticEnergy, n); |
---|
| 247 | sPower += e * cs * theAtomicNumDensityVector[iel]; |
---|
| 248 | } |
---|
| 249 | G4double esp = energySpectrum->Excitation(iZ,kineticEnergy); |
---|
| 250 | sPower += esp * theAtomicNumDensityVector[iel]; |
---|
| 251 | } |
---|
| 252 | |
---|
| 253 | if (verboseLevel > 2) |
---|
| 254 | { |
---|
| 255 | G4cout << "G4LivermoreIonisationModel " << G4endl; |
---|
| 256 | G4cout << "Stopping power < " << cutEnergy/keV << " keV at " << |
---|
| 257 | kineticEnergy/keV << " keV = " << sPower/(keV/mm) << " keV/mm" << G4endl; |
---|
| 258 | } |
---|
| 259 | |
---|
| 260 | return sPower; |
---|
| 261 | } |
---|
| 262 | |
---|
| 263 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 264 | |
---|
| 265 | void G4LivermoreIonisationModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect, |
---|
| 266 | const G4MaterialCutsCouple* couple, |
---|
| 267 | const G4DynamicParticle* aDynamicParticle, |
---|
| 268 | G4double cutE, |
---|
| 269 | G4double maxE) |
---|
| 270 | { |
---|
| 271 | |
---|
| 272 | G4double kineticEnergy = aDynamicParticle->GetKineticEnergy(); |
---|
| 273 | |
---|
| 274 | if (kineticEnergy <= fIntrinsicLowEnergyLimit) |
---|
| 275 | { |
---|
| 276 | fParticleChange->SetProposedKineticEnergy(0.); |
---|
| 277 | fParticleChange->ProposeLocalEnergyDeposit(kineticEnergy); |
---|
| 278 | return ; |
---|
| 279 | } |
---|
| 280 | |
---|
| 281 | // Select atom and shell |
---|
| 282 | G4int Z = crossSectionHandler->SelectRandomAtom(couple, kineticEnergy); |
---|
| 283 | G4int shell = crossSectionHandler->SelectRandomShell(Z, kineticEnergy); |
---|
| 284 | const G4AtomicShell* atomicShell = |
---|
| 285 | (G4AtomicTransitionManager::Instance())->Shell(Z, shell); |
---|
| 286 | G4double bindingEnergy = atomicShell->BindingEnergy(); |
---|
| 287 | G4int shellId = atomicShell->ShellId(); |
---|
| 288 | |
---|
| 289 | // Sample delta energy using energy interval for delta-electrons |
---|
| 290 | G4double energyMax = |
---|
| 291 | std::min(maxE,energySpectrum->MaxEnergyOfSecondaries(kineticEnergy)); |
---|
| 292 | G4double energyDelta = energySpectrum->SampleEnergy(Z, cutE, energyMax, |
---|
| 293 | kineticEnergy, shell); |
---|
| 294 | |
---|
| 295 | if (energyDelta == 0.) //nothing happens |
---|
| 296 | return; |
---|
| 297 | |
---|
| 298 | // Transform to shell potential |
---|
| 299 | G4double deltaKinE = energyDelta + 2.0*bindingEnergy; |
---|
| 300 | G4double primaryKinE = kineticEnergy + 2.0*bindingEnergy; |
---|
| 301 | |
---|
| 302 | // sampling of scattering angle neglecting atomic motion |
---|
| 303 | G4double deltaMom = std::sqrt(deltaKinE*(deltaKinE + 2.0*electron_mass_c2)); |
---|
| 304 | G4double primaryMom = std::sqrt(primaryKinE*(primaryKinE + 2.0*electron_mass_c2)); |
---|
| 305 | |
---|
| 306 | G4double cost = deltaKinE * (primaryKinE + 2.0*electron_mass_c2) |
---|
| 307 | / (deltaMom * primaryMom); |
---|
| 308 | if (cost > 1.) cost = 1.; |
---|
| 309 | G4double sint = std::sqrt(1. - cost*cost); |
---|
| 310 | G4double phi = twopi * G4UniformRand(); |
---|
| 311 | G4double dirx = sint * std::cos(phi); |
---|
| 312 | G4double diry = sint * std::sin(phi); |
---|
| 313 | G4double dirz = cost; |
---|
| 314 | |
---|
| 315 | // Rotate to incident electron direction |
---|
| 316 | G4ThreeVector primaryDirection = aDynamicParticle->GetMomentumDirection(); |
---|
| 317 | G4ThreeVector deltaDir(dirx,diry,dirz); |
---|
| 318 | deltaDir.rotateUz(primaryDirection); |
---|
| 319 | //Updated components |
---|
| 320 | dirx = deltaDir.x(); |
---|
| 321 | diry = deltaDir.y(); |
---|
| 322 | dirz = deltaDir.z(); |
---|
| 323 | |
---|
| 324 | // Take into account atomic motion del is relative momentum of the motion |
---|
| 325 | // kinetic energy of the motion == bindingEnergy in V.Ivanchenko model |
---|
| 326 | cost = 2.0*G4UniformRand() - 1.0; |
---|
| 327 | sint = std::sqrt(1. - cost*cost); |
---|
| 328 | phi = twopi * G4UniformRand(); |
---|
| 329 | G4double del = std::sqrt(bindingEnergy *(bindingEnergy + 2.0*electron_mass_c2)) |
---|
| 330 | / deltaMom; |
---|
| 331 | dirx += del* sint * std::cos(phi); |
---|
| 332 | diry += del* sint * std::sin(phi); |
---|
| 333 | dirz += del* cost; |
---|
| 334 | |
---|
| 335 | // Find out new primary electron direction |
---|
| 336 | G4double finalPx = primaryMom*primaryDirection.x() - deltaMom*dirx; |
---|
| 337 | G4double finalPy = primaryMom*primaryDirection.y() - deltaMom*diry; |
---|
| 338 | G4double finalPz = primaryMom*primaryDirection.z() - deltaMom*dirz; |
---|
| 339 | |
---|
| 340 | //Ok, ready to create the delta ray |
---|
| 341 | G4DynamicParticle* theDeltaRay = new G4DynamicParticle(); |
---|
| 342 | theDeltaRay->SetKineticEnergy(energyDelta); |
---|
| 343 | G4double norm = 1.0/std::sqrt(dirx*dirx + diry*diry + dirz*dirz); |
---|
| 344 | dirx *= norm; |
---|
| 345 | diry *= norm; |
---|
| 346 | dirz *= norm; |
---|
| 347 | theDeltaRay->SetMomentumDirection(dirx, diry, dirz); |
---|
| 348 | theDeltaRay->SetDefinition(G4Electron::Electron()); |
---|
| 349 | fvect->push_back(theDeltaRay); |
---|
| 350 | |
---|
| 351 | //This is the amount of energy available for fluorescence |
---|
| 352 | G4double theEnergyDeposit = bindingEnergy; |
---|
| 353 | |
---|
| 354 | // fill ParticleChange |
---|
| 355 | // changed energy and momentum of the actual particle |
---|
| 356 | G4double finalKinEnergy = kineticEnergy - energyDelta - theEnergyDeposit; |
---|
| 357 | if(finalKinEnergy < 0.0) |
---|
| 358 | { |
---|
| 359 | theEnergyDeposit += finalKinEnergy; |
---|
| 360 | finalKinEnergy = 0.0; |
---|
| 361 | } |
---|
| 362 | else |
---|
| 363 | { |
---|
| 364 | G4double norm = 1.0/std::sqrt(finalPx*finalPx+finalPy*finalPy+finalPz*finalPz); |
---|
| 365 | finalPx *= norm; |
---|
| 366 | finalPy *= norm; |
---|
| 367 | finalPz *= norm; |
---|
| 368 | fParticleChange->ProposeMomentumDirection(finalPx, finalPy, finalPz); |
---|
| 369 | } |
---|
| 370 | fParticleChange->SetProposedKineticEnergy(finalKinEnergy); |
---|
| 371 | |
---|
| 372 | // deexcitation may be active per G4Region |
---|
| 373 | if(DeexcitationFlag() && Z > 5) |
---|
| 374 | { |
---|
| 375 | G4ProductionCutsTable* theCoupleTable = |
---|
| 376 | G4ProductionCutsTable::GetProductionCutsTable(); |
---|
| 377 | // Retrieve cuts for gammas |
---|
| 378 | G4double cutG = (*theCoupleTable->GetEnergyCutsVector(0))[couple->GetIndex()]; |
---|
| 379 | if(theEnergyDeposit > cutG || theEnergyDeposit > cutE) |
---|
| 380 | { |
---|
| 381 | deexcitationManager.SetCutForSecondaryPhotons(cutG); |
---|
| 382 | deexcitationManager.SetCutForAugerElectrons(cutE); |
---|
| 383 | std::vector<G4DynamicParticle*>* secondaryVector = |
---|
| 384 | deexcitationManager.GenerateParticles(Z, shellId); |
---|
| 385 | G4DynamicParticle* aSecondary; |
---|
| 386 | |
---|
| 387 | if (secondaryVector) |
---|
| 388 | { |
---|
| 389 | for (size_t i = 0; i<secondaryVector->size(); i++) |
---|
| 390 | { |
---|
| 391 | aSecondary = (*secondaryVector)[i]; |
---|
| 392 | //Check if it is a valid secondary |
---|
| 393 | if (aSecondary) |
---|
| 394 | { |
---|
| 395 | G4double e = aSecondary->GetKineticEnergy(); |
---|
| 396 | if (e < theEnergyDeposit) |
---|
| 397 | { |
---|
| 398 | theEnergyDeposit -= e; |
---|
| 399 | fvect->push_back(aSecondary); |
---|
[1347] | 400 | aSecondary = 0; |
---|
| 401 | (*secondaryVector)[i]=0; |
---|
[1058] | 402 | } |
---|
| 403 | else |
---|
| 404 | { |
---|
| 405 | delete aSecondary; |
---|
| 406 | (*secondaryVector)[i] = 0; |
---|
| 407 | } |
---|
| 408 | } |
---|
| 409 | } |
---|
[1347] | 410 | //secondaryVector = 0; |
---|
| 411 | delete secondaryVector; |
---|
[1058] | 412 | } |
---|
| 413 | } |
---|
| 414 | } |
---|
| 415 | |
---|
| 416 | if (theEnergyDeposit < 0) |
---|
| 417 | { |
---|
| 418 | G4cout << "G4LivermoreIonisationModel: Negative energy deposit: " |
---|
| 419 | << theEnergyDeposit/eV << " eV" << G4endl; |
---|
| 420 | theEnergyDeposit = 0.0; |
---|
| 421 | } |
---|
| 422 | |
---|
| 423 | //Assign local energy deposit |
---|
| 424 | fParticleChange->ProposeLocalEnergyDeposit(theEnergyDeposit); |
---|
| 425 | |
---|
| 426 | if (verboseLevel > 1) |
---|
| 427 | { |
---|
| 428 | G4cout << "-----------------------------------------------------------" << G4endl; |
---|
| 429 | G4cout << "Energy balance from G4LivermoreIonisation" << G4endl; |
---|
| 430 | G4cout << "Incoming primary energy: " << kineticEnergy/keV << " keV" << G4endl; |
---|
| 431 | G4cout << "-----------------------------------------------------------" << G4endl; |
---|
| 432 | G4cout << "Outgoing primary energy: " << finalKinEnergy/keV << " keV" << G4endl; |
---|
| 433 | G4cout << "Delta ray " << energyDelta/keV << " keV" << G4endl; |
---|
| 434 | G4cout << "Fluorescence: " << (bindingEnergy-theEnergyDeposit)/keV << " keV" << G4endl; |
---|
| 435 | G4cout << "Local energy deposit " << theEnergyDeposit/keV << " keV" << G4endl; |
---|
| 436 | G4cout << "Total final state: " << (finalKinEnergy+energyDelta+bindingEnergy+ |
---|
| 437 | theEnergyDeposit)/keV << " keV" << G4endl; |
---|
| 438 | G4cout << "-----------------------------------------------------------" << G4endl; |
---|
| 439 | } |
---|
| 440 | return; |
---|
| 441 | } |
---|
| 442 | |
---|
| 443 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 444 | |
---|
| 445 | |
---|
| 446 | void G4LivermoreIonisationModel::SampleDeexcitationAlongStep(const G4Material* theMaterial, |
---|
| 447 | const G4Track& theTrack, |
---|
| 448 | G4double& eloss) |
---|
| 449 | { |
---|
| 450 | //No call if there is no deexcitation along step |
---|
| 451 | if (!DeexcitationFlag()) return; |
---|
| 452 | |
---|
| 453 | //This method gets the energy loss calculated "Along the Step" and |
---|
| 454 | //(including fluctuations) and produces explicit fluorescence/Auger |
---|
| 455 | //secondaries. The eloss value is updated. |
---|
| 456 | G4double energyLossBefore = eloss; |
---|
[1340] | 457 | |
---|
[1058] | 458 | if (verboseLevel > 2) |
---|
[1340] | 459 | { |
---|
| 460 | G4cout << "-----------------------------------------------------------" << G4endl; |
---|
| 461 | G4cout << " SampleDeexcitationAlongStep() from G4LivermoreIonisation" << G4endl; |
---|
| 462 | G4cout << "Energy loss along step before deexcitation : " << energyLossBefore/keV << |
---|
| 463 | " keV" << G4endl; |
---|
| 464 | } |
---|
[1058] | 465 | G4double incidentEnergy = theTrack.GetDynamicParticle()->GetKineticEnergy(); |
---|
| 466 | |
---|
| 467 | G4ProductionCutsTable* theCoupleTable = |
---|
| 468 | G4ProductionCutsTable::GetProductionCutsTable(); |
---|
| 469 | const G4MaterialCutsCouple* couple = theTrack.GetMaterialCutsCouple(); |
---|
| 470 | size_t index = couple->GetIndex(); |
---|
| 471 | G4double cutg = (*(theCoupleTable->GetEnergyCutsVector(0)))[index]; |
---|
| 472 | G4double cute = (*(theCoupleTable->GetEnergyCutsVector(1)))[index]; |
---|
| 473 | |
---|
| 474 | |
---|
| 475 | std::vector<G4DynamicParticle*>* deexcitationProducts = |
---|
| 476 | new std::vector<G4DynamicParticle*>; |
---|
| 477 | |
---|
| 478 | if(eloss > cute || eloss > cutg) |
---|
| 479 | { |
---|
| 480 | const G4AtomicTransitionManager* transitionManager = |
---|
| 481 | G4AtomicTransitionManager::Instance(); |
---|
| 482 | deexcitationManager.SetCutForSecondaryPhotons(cutg); |
---|
| 483 | deexcitationManager.SetCutForAugerElectrons(cute); |
---|
| 484 | |
---|
| 485 | size_t nElements = theMaterial->GetNumberOfElements(); |
---|
| 486 | const G4ElementVector* theElementVector = theMaterial->GetElementVector(); |
---|
| 487 | |
---|
| 488 | std::vector<G4DynamicParticle*>* secVector = 0; |
---|
| 489 | G4DynamicParticle* aSecondary = 0; |
---|
| 490 | //G4ParticleDefinition* type = 0; |
---|
| 491 | G4double e; |
---|
| 492 | G4ThreeVector position; |
---|
| 493 | G4int shell, shellId; |
---|
| 494 | |
---|
| 495 | // sample secondaries |
---|
| 496 | G4double eTot = 0.0; |
---|
| 497 | std::vector<G4int> n = |
---|
| 498 | shellVacancy->GenerateNumberOfIonisations(couple, |
---|
| 499 | incidentEnergy,eloss); |
---|
| 500 | for (size_t i=0; i<nElements; i++) |
---|
| 501 | { |
---|
| 502 | G4int Z = (G4int)((*theElementVector)[i]->GetZ()); |
---|
| 503 | size_t nVacancies = n[i]; |
---|
| 504 | G4double maxE = transitionManager->Shell(Z, 0)->BindingEnergy(); |
---|
| 505 | if (nVacancies > 0 && Z > 5 && (maxE > cute || maxE > cutg)) |
---|
| 506 | { |
---|
| 507 | for (size_t j=0; j<nVacancies; j++) |
---|
| 508 | { |
---|
| 509 | shell = crossSectionHandler->SelectRandomShell(Z, incidentEnergy); |
---|
| 510 | shellId = transitionManager->Shell(Z, shell)->ShellId(); |
---|
| 511 | G4double maxEShell = |
---|
| 512 | transitionManager->Shell(Z, shell)->BindingEnergy(); |
---|
| 513 | if (maxEShell > cute || maxEShell > cutg ) |
---|
| 514 | { |
---|
| 515 | secVector = deexcitationManager.GenerateParticles(Z, shellId); |
---|
| 516 | if (secVector) |
---|
| 517 | { |
---|
| 518 | for (size_t l = 0; l<secVector->size(); l++) { |
---|
| 519 | aSecondary = (*secVector)[l]; |
---|
| 520 | if (aSecondary) |
---|
| 521 | { |
---|
| 522 | e = aSecondary->GetKineticEnergy(); |
---|
[1340] | 523 | G4double itsCut = cutg; |
---|
| 524 | if (aSecondary->GetParticleDefinition() == G4Electron::Electron()) |
---|
| 525 | itsCut = cute; |
---|
| 526 | if ( eTot + e <= eloss && e > itsCut ) |
---|
[1058] | 527 | { |
---|
| 528 | eTot += e; |
---|
| 529 | deexcitationProducts->push_back(aSecondary); |
---|
| 530 | } |
---|
| 531 | else |
---|
| 532 | { |
---|
| 533 | delete aSecondary; |
---|
| 534 | } |
---|
| 535 | } |
---|
| 536 | } |
---|
| 537 | delete secVector; |
---|
| 538 | } |
---|
| 539 | } |
---|
| 540 | } |
---|
| 541 | } |
---|
| 542 | } |
---|
| 543 | } |
---|
| 544 | |
---|
[1340] | 545 | G4double energyLossInFluorescence = 0.0; |
---|
[1058] | 546 | size_t nSecondaries = deexcitationProducts->size(); |
---|
| 547 | if (nSecondaries > 0) |
---|
| 548 | { |
---|
[1340] | 549 | //You may have already secondaries produced by SampleSubCutSecondaries() |
---|
| 550 | //at the process G4VEnergyLossProcess |
---|
| 551 | G4int secondariesBefore = fParticleChange->GetNumberOfSecondaries(); |
---|
| 552 | fParticleChange->SetNumberOfSecondaries(nSecondaries+secondariesBefore); |
---|
[1058] | 553 | const G4StepPoint* preStep = theTrack.GetStep()->GetPreStepPoint(); |
---|
| 554 | const G4StepPoint* postStep = theTrack.GetStep()->GetPostStepPoint(); |
---|
| 555 | G4ThreeVector r = preStep->GetPosition(); |
---|
| 556 | G4ThreeVector deltaR = postStep->GetPosition(); |
---|
| 557 | deltaR -= r; |
---|
| 558 | G4double t = preStep->GetGlobalTime(); |
---|
| 559 | G4double deltaT = postStep->GetGlobalTime(); |
---|
| 560 | deltaT -= t; |
---|
| 561 | G4double time, q; |
---|
| 562 | G4ThreeVector position; |
---|
[1340] | 563 | |
---|
[1058] | 564 | for (size_t i=0; i<nSecondaries; i++) |
---|
| 565 | { |
---|
| 566 | G4DynamicParticle* part = (*deexcitationProducts)[i]; |
---|
| 567 | if (part) |
---|
| 568 | { |
---|
| 569 | G4double eSecondary = part->GetKineticEnergy(); |
---|
| 570 | eloss -= eSecondary; |
---|
| 571 | if (eloss > 0.) |
---|
| 572 | { |
---|
| 573 | q = G4UniformRand(); |
---|
| 574 | time = deltaT*q + t; |
---|
| 575 | position = deltaR*q; |
---|
| 576 | position += r; |
---|
| 577 | G4Track* newTrack = new G4Track(part, time, position); |
---|
[1340] | 578 | energyLossInFluorescence += eSecondary; |
---|
[1058] | 579 | pParticleChange->AddSecondary(newTrack); |
---|
| 580 | } |
---|
| 581 | else |
---|
| 582 | { |
---|
| 583 | eloss += eSecondary; |
---|
| 584 | delete part; |
---|
| 585 | part = 0; |
---|
| 586 | } |
---|
| 587 | } |
---|
| 588 | } |
---|
| 589 | } |
---|
| 590 | delete deexcitationProducts; |
---|
| 591 | |
---|
[1340] | 592 | //Check and verbosities. Ensure energy conservation |
---|
[1058] | 593 | if (verboseLevel > 2) |
---|
[1340] | 594 | { |
---|
| 595 | G4cout << "Energy loss along step after deexcitation : " << eloss/keV << |
---|
| 596 | " keV" << G4endl; |
---|
| 597 | } |
---|
| 598 | if (verboseLevel > 1) |
---|
| 599 | { |
---|
| 600 | G4cout << "------------------------------------------------------------------" << G4endl; |
---|
| 601 | G4cout << "Energy in fluorescence: " << energyLossInFluorescence/keV << " keV" << G4endl; |
---|
| 602 | G4cout << "Residual energy loss: " << eloss/keV << " keV " << G4endl; |
---|
| 603 | G4cout << "Total final: " << (energyLossInFluorescence+eloss)/keV << " keV" << G4endl; |
---|
| 604 | G4cout << "Total initial: " << energyLossBefore/keV << " keV" << G4endl; |
---|
| 605 | G4cout << "------------------------------------------------------------------" << G4endl; |
---|
| 606 | } |
---|
| 607 | if (verboseLevel > 0) |
---|
| 608 | { |
---|
| 609 | if (std::fabs(energyLossBefore-energyLossInFluorescence-eloss)>10*eV) |
---|
| 610 | { |
---|
| 611 | G4cout << "Found energy non-conservation at SampleDeexcitationAlongStep() " << G4endl; |
---|
| 612 | G4cout << "Energy in fluorescence: " << energyLossInFluorescence/keV << " keV" << G4endl; |
---|
| 613 | G4cout << "Residual energy loss: " << eloss/keV << " keV " << G4endl; |
---|
| 614 | G4cout << "Total final: " << (energyLossInFluorescence+eloss)/keV << " keV" << G4endl; |
---|
| 615 | G4cout << "Total initial: " << energyLossBefore/keV << " keV" << G4endl; |
---|
| 616 | } |
---|
| 617 | } |
---|
[1058] | 618 | } |
---|
| 619 | |
---|
| 620 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 621 | |
---|
| 622 | void G4LivermoreIonisationModel::InitialiseFluorescence() |
---|
| 623 | { |
---|
| 624 | G4DataVector* ksi = 0; |
---|
| 625 | G4DataVector* energyVector = 0; |
---|
| 626 | size_t binForFluo = fNBinEnergyLoss/10; |
---|
| 627 | |
---|
[1347] | 628 | //Used to produce a log-spaced energy grid. To be deleted at the end. |
---|
[1058] | 629 | G4PhysicsLogVector* eVector = new G4PhysicsLogVector(LowEnergyLimit(),HighEnergyLimit(), |
---|
| 630 | binForFluo); |
---|
| 631 | const G4ProductionCutsTable* theCoupleTable= |
---|
| 632 | G4ProductionCutsTable::GetProductionCutsTable(); |
---|
| 633 | size_t numOfCouples = theCoupleTable->GetTableSize(); |
---|
| 634 | |
---|
| 635 | // Loop on couples |
---|
| 636 | for (size_t m=0; m<numOfCouples; m++) |
---|
| 637 | { |
---|
| 638 | const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(m); |
---|
| 639 | const G4Material* material= couple->GetMaterial(); |
---|
| 640 | |
---|
| 641 | const G4ElementVector* theElementVector = material->GetElementVector(); |
---|
| 642 | size_t NumberOfElements = material->GetNumberOfElements() ; |
---|
| 643 | const G4double* theAtomicNumDensityVector = |
---|
| 644 | material->GetAtomicNumDensityVector(); |
---|
| 645 | |
---|
| 646 | G4VDataSetAlgorithm* interp = new G4LogLogInterpolation(); |
---|
| 647 | G4VEMDataSet* xsis = new G4CompositeEMDataSet(interp, 1., 1.); |
---|
| 648 | //loop on elements |
---|
| 649 | G4double energyCut = (*(theCoupleTable->GetEnergyCutsVector(1)))[m]; |
---|
| 650 | for (size_t iel=0; iel<NumberOfElements; iel++ ) |
---|
| 651 | { |
---|
| 652 | G4int iZ = (G4int)((*theElementVector)[iel]->GetZ()); |
---|
| 653 | energyVector = new G4DataVector(); |
---|
| 654 | ksi = new G4DataVector(); |
---|
| 655 | //Loop on energy |
---|
| 656 | for (size_t j = 0; j<binForFluo; j++) |
---|
| 657 | { |
---|
| 658 | G4double energy = eVector->GetLowEdgeEnergy(j); |
---|
| 659 | G4double cross = 0.; |
---|
| 660 | G4double eAverage= 0.; |
---|
| 661 | G4int nShells = transitionManager->NumberOfShells(iZ); |
---|
| 662 | |
---|
| 663 | for (G4int n=0; n<nShells; n++) |
---|
| 664 | { |
---|
| 665 | G4double e = energySpectrum->AverageEnergy(iZ, 0.0,energyCut, |
---|
| 666 | energy, n); |
---|
| 667 | G4double pro = energySpectrum->Probability(iZ, 0.0,energyCut, |
---|
| 668 | energy, n); |
---|
| 669 | G4double cs= crossSectionHandler->FindValue(iZ, energy, n); |
---|
| 670 | eAverage += e * cs * theAtomicNumDensityVector[iel]; |
---|
| 671 | cross += cs * pro * theAtomicNumDensityVector[iel]; |
---|
| 672 | if(verboseLevel > 1) |
---|
| 673 | { |
---|
| 674 | G4cout << "Z= " << iZ |
---|
| 675 | << " shell= " << n |
---|
| 676 | << " E(keV)= " << energy/keV |
---|
| 677 | << " Eav(keV)= " << e/keV |
---|
| 678 | << " pro= " << pro |
---|
| 679 | << " cs= " << cs |
---|
| 680 | << G4endl; |
---|
| 681 | } |
---|
| 682 | } |
---|
| 683 | |
---|
| 684 | G4double coeff = 0.0; |
---|
| 685 | if(eAverage > 0.) |
---|
| 686 | { |
---|
| 687 | coeff = cross/eAverage; |
---|
| 688 | eAverage /= cross; |
---|
| 689 | } |
---|
| 690 | |
---|
| 691 | if(verboseLevel > 1) |
---|
| 692 | { |
---|
| 693 | G4cout << "Ksi Coefficient for Z= " << iZ |
---|
| 694 | << " E(keV)= " << energy/keV |
---|
| 695 | << " Eav(keV)= " << eAverage/keV |
---|
| 696 | << " coeff= " << coeff |
---|
| 697 | << G4endl; |
---|
| 698 | } |
---|
| 699 | energyVector->push_back(energy); |
---|
| 700 | ksi->push_back(coeff); |
---|
| 701 | } |
---|
| 702 | G4VEMDataSet* p = new G4EMDataSet(iZ,energyVector,ksi,interp,1.,1.); |
---|
| 703 | xsis->AddComponent(p); |
---|
| 704 | } |
---|
[1340] | 705 | if(verboseLevel>3) xsis->PrintData(); |
---|
[1058] | 706 | shellVacancy->AddXsiTable(xsis); |
---|
| 707 | } |
---|
[1347] | 708 | if (eVector) |
---|
| 709 | delete eVector; |
---|
[1058] | 710 | } |
---|
| 711 | |
---|
| 712 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 713 | |
---|
| 714 | void G4LivermoreIonisationModel::ActivateAuger(G4bool val) |
---|
| 715 | { |
---|
[1192] | 716 | if (!DeexcitationFlag() && val) |
---|
| 717 | { |
---|
| 718 | G4cout << "WARNING - G4LivermoreIonisationModel" << G4endl; |
---|
| 719 | G4cout << "The use of the Atomic Deexcitation Manager is set to false " << G4endl; |
---|
| 720 | G4cout << "Therefore, Auger electrons will be not generated anyway" << G4endl; |
---|
| 721 | } |
---|
[1058] | 722 | deexcitationManager.ActivateAugerElectronProduction(val); |
---|
[1192] | 723 | if (verboseLevel > 1) |
---|
| 724 | G4cout << "Auger production set to " << val << G4endl; |
---|
[1058] | 725 | } |
---|
| 726 | |
---|