| [1058] | 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | // $Id: G4LivermoreIonisationModel.cc,v 1.4 2009/05/19 14:57:01 pandola Exp $
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| 27 | // GEANT4 tag $Name: geant4-09-03-beta-cand-01 $
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| 28 | //
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| 29 | // Author: Luciano Pandola
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| 30 | //
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| 31 | // History:
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| 32 | // --------
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| 33 | // 12 Jan 2009 L Pandola Migration from process to model
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| 34 | // 03 Mar 2009 L Pandola Bug fix (release memory in the destructor)
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| 35 | // 15 Apr 2009 V Ivanchenko Cleanup initialisation and generation of secondaries:
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| 36 | // - apply internal high-energy limit only in constructor
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| 37 | // - do not apply low-energy limit (default is 0)
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| 38 | // - simplify sampling of deexcitation by using cut in energy
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| 39 | // - set activation of Auger "false"
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| 40 | // - remove initialisation of element selectors
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| 41 | // 19 May 2009 L Pandola Explicitely set to zero pointers deleted in
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| 42 | // Initialise(), since they might be checked later on
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| 43 | //
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| 44 |
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| 45 | #include "G4LivermoreIonisationModel.hh"
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| 46 | #include "G4ParticleDefinition.hh"
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| 47 | #include "G4MaterialCutsCouple.hh"
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| 48 | #include "G4ProductionCutsTable.hh"
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| 49 | #include "G4DynamicParticle.hh"
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| 50 | #include "G4Element.hh"
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| 51 | #include "G4AtomicTransitionManager.hh"
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| 52 | #include "G4AtomicDeexcitation.hh"
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| 53 | #include "G4AtomicShell.hh"
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| 54 | #include "G4Gamma.hh"
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| 55 | #include "G4Electron.hh"
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| 56 | #include "G4CrossSectionHandler.hh"
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| 57 | #include "G4AtomicDeexcitation.hh"
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| 58 | #include "G4ProcessManager.hh"
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| 59 | #include "G4VEMDataSet.hh"
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| 60 | #include "G4EMDataSet.hh"
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| 61 | #include "G4eIonisationCrossSectionHandler.hh"
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| 62 | #include "G4eIonisationSpectrum.hh"
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| 63 | #include "G4VDataSetAlgorithm.hh"
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| 64 | #include "G4SemiLogInterpolation.hh"
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| 65 | #include "G4ShellVacancy.hh"
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| 66 | #include "G4VDataSetAlgorithm.hh"
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| 67 | #include "G4LogLogInterpolation.hh"
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| 68 | #include "G4CompositeEMDataSet.hh"
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| 69 |
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| 70 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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| 71 |
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| 72 |
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| 73 | G4LivermoreIonisationModel::G4LivermoreIonisationModel(const G4ParticleDefinition*,
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| 74 | const G4String& nam)
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| 75 | :G4VEmModel(nam),isInitialised(false),crossSectionHandler(0),
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| 76 | energySpectrum(0),shellVacancy(0)
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| 77 | {
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| 78 | fIntrinsicLowEnergyLimit = 10.0*eV;
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| 79 | fIntrinsicHighEnergyLimit = 100.0*GeV;
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| 80 | fNBinEnergyLoss = 360;
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| 81 | // SetLowEnergyLimit(fIntrinsicLowEnergyLimit);
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| 82 | SetHighEnergyLimit(fIntrinsicHighEnergyLimit);
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| 83 | //
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| 84 | verboseLevel = 0;
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| 85 | //
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| 86 | fUseAtomicDeexcitation = true;
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| 87 | ActivateAuger(false);
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| 88 | //
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| 89 | // Notice: the fluorescence along step is generated only if it is
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| 90 | // set by the PROCESS (e.g. G4eIonisation) via the command
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| 91 | // process->ActivateDeexcitation(true);
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| 92 | //
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| 93 | }
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| 94 |
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| 95 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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| 96 |
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| 97 | G4LivermoreIonisationModel::~G4LivermoreIonisationModel()
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| 98 | {
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| 99 | if (energySpectrum) delete energySpectrum;
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| 100 | if (crossSectionHandler) delete crossSectionHandler;
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| 101 | if (shellVacancy) delete shellVacancy;
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| 102 | }
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| 103 |
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| 104 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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| 105 |
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| 106 | void G4LivermoreIonisationModel::Initialise(const G4ParticleDefinition* particle,
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| 107 | const G4DataVector& cuts)
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| 108 | {
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| 109 | //Check that the Livermore Ionisation is NOT attached to e+
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| 110 | if (particle != G4Electron::Electron())
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| 111 | {
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| 112 | G4cout << "ERROR: Livermore Ionisation Model is applicable only to electrons" << G4endl;
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| 113 | G4cout << "It cannot be registered to " << particle->GetParticleName() << G4endl;
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| 114 | G4Exception();
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| 115 | }
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| 116 |
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| 117 | //Read energy spectrum
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| 118 | if (energySpectrum)
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| 119 | {
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| 120 | delete energySpectrum;
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| 121 | energySpectrum = 0;
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| 122 | }
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| 123 | energySpectrum = new G4eIonisationSpectrum();
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| 124 | if (verboseLevel > 0)
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| 125 | G4cout << "G4VEnergySpectrum is initialized" << G4endl;
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| 126 |
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| 127 | //Initialize cross section handler
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| 128 | if (crossSectionHandler)
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| 129 | {
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| 130 | delete crossSectionHandler;
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| 131 | crossSectionHandler = 0;
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| 132 | }
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| 133 |
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| 134 | G4VDataSetAlgorithm* interpolation = new G4SemiLogInterpolation();
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| 135 | crossSectionHandler = new G4eIonisationCrossSectionHandler(energySpectrum,interpolation,
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| 136 | LowEnergyLimit(),HighEnergyLimit(),
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| 137 | fNBinEnergyLoss);
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| 138 | crossSectionHandler->Clear();
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| 139 | crossSectionHandler->LoadShellData("ioni/ion-ss-cs-");
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| 140 | //This is used to retrieve cross section values later on
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| 141 | crossSectionHandler->BuildMeanFreePathForMaterials(&cuts);
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| 142 |
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| 143 | //Fluorescence data
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| 144 | transitionManager = G4AtomicTransitionManager::Instance();
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| 145 | if (shellVacancy) delete shellVacancy;
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| 146 | shellVacancy = new G4ShellVacancy();
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| 147 | InitialiseFluorescence();
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| 148 |
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| 149 | if (verboseLevel > 0)
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| 150 | {
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| 151 | G4cout << "Livermore Ionisation model is initialized " << G4endl
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| 152 | << "Energy range: "
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| 153 | << LowEnergyLimit() / keV << " keV - "
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| 154 | << HighEnergyLimit() / GeV << " GeV"
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| 155 | << G4endl;
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| 156 | }
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| 157 |
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| 158 | if (verboseLevel > 1)
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| 159 | {
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| 160 | G4cout << "Cross section data: " << G4endl;
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| 161 | crossSectionHandler->PrintData();
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| 162 | G4cout << "Parameters: " << G4endl;
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| 163 | energySpectrum->PrintData();
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| 164 | }
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| 165 |
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| 166 | if(isInitialised) return;
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| 167 | fParticleChange = GetParticleChangeForLoss();
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| 168 | isInitialised = true;
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| 169 | }
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| 170 |
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| 171 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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| 172 |
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| 173 | G4double G4LivermoreIonisationModel::MinEnergyCut(const G4ParticleDefinition*,
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| 174 | const G4MaterialCutsCouple*)
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| 175 | {
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| 176 | return 250.*eV;
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| 177 | }
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| 178 |
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| 179 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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| 180 |
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| 181 | G4double G4LivermoreIonisationModel::ComputeCrossSectionPerAtom(const G4ParticleDefinition*,
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| 182 | G4double energy,
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| 183 | G4double Z, G4double,
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| 184 | G4double cutEnergy,
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| 185 | G4double)
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| 186 | {
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| 187 | G4int iZ = (G4int) Z;
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| 188 | if (!crossSectionHandler)
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| 189 | {
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| 190 | G4cout << "G4LivermoreIonisationModel::ComputeCrossSectionPerAtom" << G4endl;
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| 191 | G4cout << "The cross section handler is not correctly initialized" << G4endl;
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| 192 | G4Exception();
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| 193 | }
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| 194 |
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| 195 | //The cut is already included in the crossSectionHandler
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| 196 | G4double cs =
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| 197 | crossSectionHandler->GetCrossSectionAboveThresholdForElement(energy,cutEnergy,iZ);
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| 198 |
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| 199 | if (verboseLevel > 1)
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| 200 | {
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| 201 | G4cout << "G4LivermoreIonisationModel " << G4endl;
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| 202 | G4cout << "Cross section for delta emission > " << cutEnergy/keV << " keV at " <<
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| 203 | energy/keV << " keV and Z = " << iZ << " --> " << cs/barn << " barn" << G4endl;
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| 204 | }
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| 205 | return cs;
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| 206 | }
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| 207 |
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| 208 |
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| 209 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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| 210 |
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| 211 | G4double G4LivermoreIonisationModel::ComputeDEDXPerVolume(const G4Material* material,
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| 212 | const G4ParticleDefinition* ,
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| 213 | G4double kineticEnergy,
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| 214 | G4double cutEnergy)
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| 215 | {
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| 216 | G4double sPower = 0.0;
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| 217 |
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| 218 | const G4ElementVector* theElementVector = material->GetElementVector();
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| 219 | size_t NumberOfElements = material->GetNumberOfElements() ;
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| 220 | const G4double* theAtomicNumDensityVector =
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| 221 | material->GetAtomicNumDensityVector();
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| 222 |
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| 223 | // loop for elements in the material
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| 224 | for (size_t iel=0; iel<NumberOfElements; iel++ )
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| 225 | {
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| 226 | G4int iZ = (G4int)((*theElementVector)[iel]->GetZ());
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| 227 | G4int nShells = transitionManager->NumberOfShells(iZ);
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| 228 | for (G4int n=0; n<nShells; n++)
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| 229 | {
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| 230 | G4double e = energySpectrum->AverageEnergy(iZ, 0.0,cutEnergy,
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| 231 | kineticEnergy, n);
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| 232 | G4double cs= crossSectionHandler->FindValue(iZ,kineticEnergy, n);
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| 233 | sPower += e * cs * theAtomicNumDensityVector[iel];
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| 234 | }
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| 235 | G4double esp = energySpectrum->Excitation(iZ,kineticEnergy);
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| 236 | sPower += esp * theAtomicNumDensityVector[iel];
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| 237 | }
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| 238 |
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| 239 | if (verboseLevel > 2)
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| 240 | {
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| 241 | G4cout << "G4LivermoreIonisationModel " << G4endl;
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| 242 | G4cout << "Stopping power < " << cutEnergy/keV << " keV at " <<
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| 243 | kineticEnergy/keV << " keV = " << sPower/(keV/mm) << " keV/mm" << G4endl;
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| 244 | }
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| 245 |
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| 246 | return sPower;
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| 247 | }
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| 248 |
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| 249 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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| 250 |
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| 251 | void G4LivermoreIonisationModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
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| 252 | const G4MaterialCutsCouple* couple,
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| 253 | const G4DynamicParticle* aDynamicParticle,
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| 254 | G4double cutE,
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| 255 | G4double maxE)
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| 256 | {
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| 257 |
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| 258 | G4double kineticEnergy = aDynamicParticle->GetKineticEnergy();
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| 259 |
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| 260 | if (kineticEnergy <= fIntrinsicLowEnergyLimit)
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| 261 | {
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| 262 | fParticleChange->SetProposedKineticEnergy(0.);
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| 263 | fParticleChange->ProposeLocalEnergyDeposit(kineticEnergy);
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| 264 | return ;
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| 265 | }
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| 266 |
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| 267 | // Select atom and shell
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| 268 | G4int Z = crossSectionHandler->SelectRandomAtom(couple, kineticEnergy);
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| 269 | G4int shell = crossSectionHandler->SelectRandomShell(Z, kineticEnergy);
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| 270 | const G4AtomicShell* atomicShell =
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| 271 | (G4AtomicTransitionManager::Instance())->Shell(Z, shell);
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| 272 | G4double bindingEnergy = atomicShell->BindingEnergy();
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| 273 | G4int shellId = atomicShell->ShellId();
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| 274 |
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| 275 | // Sample delta energy using energy interval for delta-electrons
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| 276 | G4double energyMax =
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| 277 | std::min(maxE,energySpectrum->MaxEnergyOfSecondaries(kineticEnergy));
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| 278 | G4double energyDelta = energySpectrum->SampleEnergy(Z, cutE, energyMax,
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| 279 | kineticEnergy, shell);
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| 280 |
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| 281 | if (energyDelta == 0.) //nothing happens
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| 282 | return;
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| 283 |
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| 284 | // Transform to shell potential
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| 285 | G4double deltaKinE = energyDelta + 2.0*bindingEnergy;
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| 286 | G4double primaryKinE = kineticEnergy + 2.0*bindingEnergy;
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| 287 |
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| 288 | // sampling of scattering angle neglecting atomic motion
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| 289 | G4double deltaMom = std::sqrt(deltaKinE*(deltaKinE + 2.0*electron_mass_c2));
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| 290 | G4double primaryMom = std::sqrt(primaryKinE*(primaryKinE + 2.0*electron_mass_c2));
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| 291 |
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| 292 | G4double cost = deltaKinE * (primaryKinE + 2.0*electron_mass_c2)
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| 293 | / (deltaMom * primaryMom);
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| 294 | if (cost > 1.) cost = 1.;
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| 295 | G4double sint = std::sqrt(1. - cost*cost);
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| 296 | G4double phi = twopi * G4UniformRand();
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| 297 | G4double dirx = sint * std::cos(phi);
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| 298 | G4double diry = sint * std::sin(phi);
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| 299 | G4double dirz = cost;
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| 300 |
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| 301 | // Rotate to incident electron direction
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| 302 | G4ThreeVector primaryDirection = aDynamicParticle->GetMomentumDirection();
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| 303 | G4ThreeVector deltaDir(dirx,diry,dirz);
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| 304 | deltaDir.rotateUz(primaryDirection);
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| 305 | //Updated components
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| 306 | dirx = deltaDir.x();
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| 307 | diry = deltaDir.y();
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| 308 | dirz = deltaDir.z();
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| 309 |
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| 310 | // Take into account atomic motion del is relative momentum of the motion
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| 311 | // kinetic energy of the motion == bindingEnergy in V.Ivanchenko model
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| 312 | cost = 2.0*G4UniformRand() - 1.0;
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| 313 | sint = std::sqrt(1. - cost*cost);
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| 314 | phi = twopi * G4UniformRand();
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| 315 | G4double del = std::sqrt(bindingEnergy *(bindingEnergy + 2.0*electron_mass_c2))
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| 316 | / deltaMom;
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| 317 | dirx += del* sint * std::cos(phi);
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| 318 | diry += del* sint * std::sin(phi);
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| 319 | dirz += del* cost;
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| 320 |
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| 321 | // Find out new primary electron direction
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| 322 | G4double finalPx = primaryMom*primaryDirection.x() - deltaMom*dirx;
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| 323 | G4double finalPy = primaryMom*primaryDirection.y() - deltaMom*diry;
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| 324 | G4double finalPz = primaryMom*primaryDirection.z() - deltaMom*dirz;
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| 325 |
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| 326 | //Ok, ready to create the delta ray
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| 327 | G4DynamicParticle* theDeltaRay = new G4DynamicParticle();
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| 328 | theDeltaRay->SetKineticEnergy(energyDelta);
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| 329 | G4double norm = 1.0/std::sqrt(dirx*dirx + diry*diry + dirz*dirz);
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| 330 | dirx *= norm;
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| 331 | diry *= norm;
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| 332 | dirz *= norm;
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| 333 | theDeltaRay->SetMomentumDirection(dirx, diry, dirz);
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| 334 | theDeltaRay->SetDefinition(G4Electron::Electron());
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| 335 | fvect->push_back(theDeltaRay);
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| 336 |
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| 337 | //This is the amount of energy available for fluorescence
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| 338 | G4double theEnergyDeposit = bindingEnergy;
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| 339 |
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| 340 | // fill ParticleChange
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| 341 | // changed energy and momentum of the actual particle
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| 342 | G4double finalKinEnergy = kineticEnergy - energyDelta - theEnergyDeposit;
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| 343 | if(finalKinEnergy < 0.0)
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| 344 | {
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| 345 | theEnergyDeposit += finalKinEnergy;
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| 346 | finalKinEnergy = 0.0;
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| 347 | }
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| 348 | else
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| 349 | {
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| 350 | G4double norm = 1.0/std::sqrt(finalPx*finalPx+finalPy*finalPy+finalPz*finalPz);
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| 351 | finalPx *= norm;
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| 352 | finalPy *= norm;
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| 353 | finalPz *= norm;
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| 354 | fParticleChange->ProposeMomentumDirection(finalPx, finalPy, finalPz);
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| 355 | }
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| 356 | fParticleChange->SetProposedKineticEnergy(finalKinEnergy);
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| 357 |
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| 358 | // deexcitation may be active per G4Region
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| 359 | if(DeexcitationFlag() && Z > 5)
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| 360 | {
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| 361 | G4ProductionCutsTable* theCoupleTable =
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| 362 | G4ProductionCutsTable::GetProductionCutsTable();
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| 363 | // Retrieve cuts for gammas
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| 364 | G4double cutG = (*theCoupleTable->GetEnergyCutsVector(0))[couple->GetIndex()];
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| 365 | if(theEnergyDeposit > cutG || theEnergyDeposit > cutE)
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| 366 | {
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| 367 | deexcitationManager.SetCutForSecondaryPhotons(cutG);
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| 368 | deexcitationManager.SetCutForAugerElectrons(cutE);
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| 369 | std::vector<G4DynamicParticle*>* secondaryVector =
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| 370 | deexcitationManager.GenerateParticles(Z, shellId);
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| 371 | G4DynamicParticle* aSecondary;
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| 372 |
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| 373 | if (secondaryVector)
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| 374 | {
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| 375 | for (size_t i = 0; i<secondaryVector->size(); i++)
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| 376 | {
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|---|
| 377 | aSecondary = (*secondaryVector)[i];
|
|---|
| 378 | //Check if it is a valid secondary
|
|---|
| 379 | if (aSecondary)
|
|---|
| 380 | {
|
|---|
| 381 | G4double e = aSecondary->GetKineticEnergy();
|
|---|
| 382 | if (e < theEnergyDeposit)
|
|---|
| 383 | {
|
|---|
| 384 | theEnergyDeposit -= e;
|
|---|
| 385 | fvect->push_back(aSecondary);
|
|---|
| 386 | }
|
|---|
| 387 | else
|
|---|
| 388 | {
|
|---|
| 389 | delete aSecondary;
|
|---|
| 390 | (*secondaryVector)[i] = 0;
|
|---|
| 391 | }
|
|---|
| 392 | }
|
|---|
| 393 | }
|
|---|
| 394 | }
|
|---|
| 395 | }
|
|---|
| 396 | }
|
|---|
| 397 |
|
|---|
| 398 | if (theEnergyDeposit < 0)
|
|---|
| 399 | {
|
|---|
| 400 | G4cout << "G4LivermoreIonisationModel: Negative energy deposit: "
|
|---|
| 401 | << theEnergyDeposit/eV << " eV" << G4endl;
|
|---|
| 402 | theEnergyDeposit = 0.0;
|
|---|
| 403 | }
|
|---|
| 404 |
|
|---|
| 405 | //Assign local energy deposit
|
|---|
| 406 | fParticleChange->ProposeLocalEnergyDeposit(theEnergyDeposit);
|
|---|
| 407 |
|
|---|
| 408 | if (verboseLevel > 1)
|
|---|
| 409 | {
|
|---|
| 410 | G4cout << "-----------------------------------------------------------" << G4endl;
|
|---|
| 411 | G4cout << "Energy balance from G4LivermoreIonisation" << G4endl;
|
|---|
| 412 | G4cout << "Incoming primary energy: " << kineticEnergy/keV << " keV" << G4endl;
|
|---|
| 413 | G4cout << "-----------------------------------------------------------" << G4endl;
|
|---|
| 414 | G4cout << "Outgoing primary energy: " << finalKinEnergy/keV << " keV" << G4endl;
|
|---|
| 415 | G4cout << "Delta ray " << energyDelta/keV << " keV" << G4endl;
|
|---|
| 416 | G4cout << "Fluorescence: " << (bindingEnergy-theEnergyDeposit)/keV << " keV" << G4endl;
|
|---|
| 417 | G4cout << "Local energy deposit " << theEnergyDeposit/keV << " keV" << G4endl;
|
|---|
| 418 | G4cout << "Total final state: " << (finalKinEnergy+energyDelta+bindingEnergy+
|
|---|
| 419 | theEnergyDeposit)/keV << " keV" << G4endl;
|
|---|
| 420 | G4cout << "-----------------------------------------------------------" << G4endl;
|
|---|
| 421 | }
|
|---|
| 422 | return;
|
|---|
| 423 | }
|
|---|
| 424 |
|
|---|
| 425 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|---|
| 426 |
|
|---|
| 427 |
|
|---|
| 428 | void G4LivermoreIonisationModel::SampleDeexcitationAlongStep(const G4Material* theMaterial,
|
|---|
| 429 | const G4Track& theTrack,
|
|---|
| 430 | G4double& eloss)
|
|---|
| 431 | {
|
|---|
| 432 | //No call if there is no deexcitation along step
|
|---|
| 433 | if (!DeexcitationFlag()) return;
|
|---|
| 434 |
|
|---|
| 435 | //This method gets the energy loss calculated "Along the Step" and
|
|---|
| 436 | //(including fluctuations) and produces explicit fluorescence/Auger
|
|---|
| 437 | //secondaries. The eloss value is updated.
|
|---|
| 438 | G4double energyLossBefore = eloss;
|
|---|
| 439 | if (verboseLevel > 2)
|
|---|
| 440 | G4cout << "Energy loss along step before deexcitation : " << energyLossBefore/keV <<
|
|---|
| 441 | " keV" << G4endl;
|
|---|
| 442 |
|
|---|
| 443 | G4double incidentEnergy = theTrack.GetDynamicParticle()->GetKineticEnergy();
|
|---|
| 444 |
|
|---|
| 445 | G4ProductionCutsTable* theCoupleTable =
|
|---|
| 446 | G4ProductionCutsTable::GetProductionCutsTable();
|
|---|
| 447 | const G4MaterialCutsCouple* couple = theTrack.GetMaterialCutsCouple();
|
|---|
| 448 | size_t index = couple->GetIndex();
|
|---|
| 449 | G4double cutg = (*(theCoupleTable->GetEnergyCutsVector(0)))[index];
|
|---|
| 450 | G4double cute = (*(theCoupleTable->GetEnergyCutsVector(1)))[index];
|
|---|
| 451 |
|
|---|
| 452 | //Notice: in LowEnergyIonisation, fluorescence is always generated above 250 eV
|
|---|
| 453 | //not above the tracking cut.
|
|---|
| 454 | //G4double cutForLowEnergySecondaryParticles = 250.0*eV;
|
|---|
| 455 |
|
|---|
| 456 | std::vector<G4DynamicParticle*>* deexcitationProducts =
|
|---|
| 457 | new std::vector<G4DynamicParticle*>;
|
|---|
| 458 |
|
|---|
| 459 | if(eloss > cute || eloss > cutg)
|
|---|
| 460 | {
|
|---|
| 461 | const G4AtomicTransitionManager* transitionManager =
|
|---|
| 462 | G4AtomicTransitionManager::Instance();
|
|---|
| 463 | deexcitationManager.SetCutForSecondaryPhotons(cutg);
|
|---|
| 464 | deexcitationManager.SetCutForAugerElectrons(cute);
|
|---|
| 465 |
|
|---|
| 466 | size_t nElements = theMaterial->GetNumberOfElements();
|
|---|
| 467 | const G4ElementVector* theElementVector = theMaterial->GetElementVector();
|
|---|
| 468 |
|
|---|
| 469 | std::vector<G4DynamicParticle*>* secVector = 0;
|
|---|
| 470 | G4DynamicParticle* aSecondary = 0;
|
|---|
| 471 | //G4ParticleDefinition* type = 0;
|
|---|
| 472 | G4double e;
|
|---|
| 473 | G4ThreeVector position;
|
|---|
| 474 | G4int shell, shellId;
|
|---|
| 475 |
|
|---|
| 476 | // sample secondaries
|
|---|
| 477 | G4double eTot = 0.0;
|
|---|
| 478 | std::vector<G4int> n =
|
|---|
| 479 | shellVacancy->GenerateNumberOfIonisations(couple,
|
|---|
| 480 | incidentEnergy,eloss);
|
|---|
| 481 | for (size_t i=0; i<nElements; i++)
|
|---|
| 482 | {
|
|---|
| 483 | G4int Z = (G4int)((*theElementVector)[i]->GetZ());
|
|---|
| 484 | size_t nVacancies = n[i];
|
|---|
| 485 | G4double maxE = transitionManager->Shell(Z, 0)->BindingEnergy();
|
|---|
| 486 | if (nVacancies > 0 && Z > 5 && (maxE > cute || maxE > cutg))
|
|---|
| 487 | {
|
|---|
| 488 | for (size_t j=0; j<nVacancies; j++)
|
|---|
| 489 | {
|
|---|
| 490 | shell = crossSectionHandler->SelectRandomShell(Z, incidentEnergy);
|
|---|
| 491 | shellId = transitionManager->Shell(Z, shell)->ShellId();
|
|---|
| 492 | G4double maxEShell =
|
|---|
| 493 | transitionManager->Shell(Z, shell)->BindingEnergy();
|
|---|
| 494 | if (maxEShell > cute || maxEShell > cutg )
|
|---|
| 495 | {
|
|---|
| 496 | secVector = deexcitationManager.GenerateParticles(Z, shellId);
|
|---|
| 497 | if (secVector)
|
|---|
| 498 | {
|
|---|
| 499 | for (size_t l = 0; l<secVector->size(); l++) {
|
|---|
| 500 | aSecondary = (*secVector)[l];
|
|---|
| 501 | if (aSecondary)
|
|---|
| 502 | {
|
|---|
| 503 | e = aSecondary->GetKineticEnergy();
|
|---|
| 504 | if ( eTot + e <= eloss )
|
|---|
| 505 | {
|
|---|
| 506 | eTot += e;
|
|---|
| 507 | deexcitationProducts->push_back(aSecondary);
|
|---|
| 508 | }
|
|---|
| 509 | else
|
|---|
| 510 | {
|
|---|
| 511 | delete aSecondary;
|
|---|
| 512 | }
|
|---|
| 513 | }
|
|---|
| 514 | }
|
|---|
| 515 | delete secVector;
|
|---|
| 516 | }
|
|---|
| 517 | }
|
|---|
| 518 | }
|
|---|
| 519 | }
|
|---|
| 520 | }
|
|---|
| 521 | }
|
|---|
| 522 |
|
|---|
| 523 | size_t nSecondaries = deexcitationProducts->size();
|
|---|
| 524 | if (nSecondaries > 0)
|
|---|
| 525 | {
|
|---|
| 526 | fParticleChange->SetNumberOfSecondaries(nSecondaries);
|
|---|
| 527 | const G4StepPoint* preStep = theTrack.GetStep()->GetPreStepPoint();
|
|---|
| 528 | const G4StepPoint* postStep = theTrack.GetStep()->GetPostStepPoint();
|
|---|
| 529 | G4ThreeVector r = preStep->GetPosition();
|
|---|
| 530 | G4ThreeVector deltaR = postStep->GetPosition();
|
|---|
| 531 | deltaR -= r;
|
|---|
| 532 | G4double t = preStep->GetGlobalTime();
|
|---|
| 533 | G4double deltaT = postStep->GetGlobalTime();
|
|---|
| 534 | deltaT -= t;
|
|---|
| 535 | G4double time, q;
|
|---|
| 536 | G4ThreeVector position;
|
|---|
| 537 |
|
|---|
| 538 | for (size_t i=0; i<nSecondaries; i++)
|
|---|
| 539 | {
|
|---|
| 540 | G4DynamicParticle* part = (*deexcitationProducts)[i];
|
|---|
| 541 | if (part)
|
|---|
| 542 | {
|
|---|
| 543 | G4double eSecondary = part->GetKineticEnergy();
|
|---|
| 544 | eloss -= eSecondary;
|
|---|
| 545 | if (eloss > 0.)
|
|---|
| 546 | {
|
|---|
| 547 | q = G4UniformRand();
|
|---|
| 548 | time = deltaT*q + t;
|
|---|
| 549 | position = deltaR*q;
|
|---|
| 550 | position += r;
|
|---|
| 551 | G4Track* newTrack = new G4Track(part, time, position);
|
|---|
| 552 | pParticleChange->AddSecondary(newTrack);
|
|---|
| 553 | }
|
|---|
| 554 | else
|
|---|
| 555 | {
|
|---|
| 556 | eloss += eSecondary;
|
|---|
| 557 | delete part;
|
|---|
| 558 | part = 0;
|
|---|
| 559 | }
|
|---|
| 560 | }
|
|---|
| 561 | }
|
|---|
| 562 | }
|
|---|
| 563 | delete deexcitationProducts;
|
|---|
| 564 |
|
|---|
| 565 | if (verboseLevel > 2)
|
|---|
| 566 | G4cout << "Energy loss along step after deexcitation : " << eloss/keV <<
|
|---|
| 567 | " keV" << G4endl;
|
|---|
| 568 | }
|
|---|
| 569 |
|
|---|
| 570 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|---|
| 571 |
|
|---|
| 572 | void G4LivermoreIonisationModel::InitialiseFluorescence()
|
|---|
| 573 | {
|
|---|
| 574 | G4DataVector* ksi = 0;
|
|---|
| 575 | G4DataVector* energyVector = 0;
|
|---|
| 576 | size_t binForFluo = fNBinEnergyLoss/10;
|
|---|
| 577 |
|
|---|
| 578 | G4PhysicsLogVector* eVector = new G4PhysicsLogVector(LowEnergyLimit(),HighEnergyLimit(),
|
|---|
| 579 | binForFluo);
|
|---|
| 580 | const G4ProductionCutsTable* theCoupleTable=
|
|---|
| 581 | G4ProductionCutsTable::GetProductionCutsTable();
|
|---|
| 582 | size_t numOfCouples = theCoupleTable->GetTableSize();
|
|---|
| 583 |
|
|---|
| 584 | // Loop on couples
|
|---|
| 585 | for (size_t m=0; m<numOfCouples; m++)
|
|---|
| 586 | {
|
|---|
| 587 | const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(m);
|
|---|
| 588 | const G4Material* material= couple->GetMaterial();
|
|---|
| 589 |
|
|---|
| 590 | const G4ElementVector* theElementVector = material->GetElementVector();
|
|---|
| 591 | size_t NumberOfElements = material->GetNumberOfElements() ;
|
|---|
| 592 | const G4double* theAtomicNumDensityVector =
|
|---|
| 593 | material->GetAtomicNumDensityVector();
|
|---|
| 594 |
|
|---|
| 595 | G4VDataSetAlgorithm* interp = new G4LogLogInterpolation();
|
|---|
| 596 | G4VEMDataSet* xsis = new G4CompositeEMDataSet(interp, 1., 1.);
|
|---|
| 597 | //loop on elements
|
|---|
| 598 | G4double energyCut = (*(theCoupleTable->GetEnergyCutsVector(1)))[m];
|
|---|
| 599 | for (size_t iel=0; iel<NumberOfElements; iel++ )
|
|---|
| 600 | {
|
|---|
| 601 | G4int iZ = (G4int)((*theElementVector)[iel]->GetZ());
|
|---|
| 602 | energyVector = new G4DataVector();
|
|---|
| 603 | ksi = new G4DataVector();
|
|---|
| 604 | //Loop on energy
|
|---|
| 605 | for (size_t j = 0; j<binForFluo; j++)
|
|---|
| 606 | {
|
|---|
| 607 | G4double energy = eVector->GetLowEdgeEnergy(j);
|
|---|
| 608 | G4double cross = 0.;
|
|---|
| 609 | G4double eAverage= 0.;
|
|---|
| 610 | G4int nShells = transitionManager->NumberOfShells(iZ);
|
|---|
| 611 |
|
|---|
| 612 | for (G4int n=0; n<nShells; n++)
|
|---|
| 613 | {
|
|---|
| 614 | G4double e = energySpectrum->AverageEnergy(iZ, 0.0,energyCut,
|
|---|
| 615 | energy, n);
|
|---|
| 616 | G4double pro = energySpectrum->Probability(iZ, 0.0,energyCut,
|
|---|
| 617 | energy, n);
|
|---|
| 618 | G4double cs= crossSectionHandler->FindValue(iZ, energy, n);
|
|---|
| 619 | eAverage += e * cs * theAtomicNumDensityVector[iel];
|
|---|
| 620 | cross += cs * pro * theAtomicNumDensityVector[iel];
|
|---|
| 621 | if(verboseLevel > 1)
|
|---|
| 622 | {
|
|---|
| 623 | G4cout << "Z= " << iZ
|
|---|
| 624 | << " shell= " << n
|
|---|
| 625 | << " E(keV)= " << energy/keV
|
|---|
| 626 | << " Eav(keV)= " << e/keV
|
|---|
| 627 | << " pro= " << pro
|
|---|
| 628 | << " cs= " << cs
|
|---|
| 629 | << G4endl;
|
|---|
| 630 | }
|
|---|
| 631 | }
|
|---|
| 632 |
|
|---|
| 633 | G4double coeff = 0.0;
|
|---|
| 634 | if(eAverage > 0.)
|
|---|
| 635 | {
|
|---|
| 636 | coeff = cross/eAverage;
|
|---|
| 637 | eAverage /= cross;
|
|---|
| 638 | }
|
|---|
| 639 |
|
|---|
| 640 | if(verboseLevel > 1)
|
|---|
| 641 | {
|
|---|
| 642 | G4cout << "Ksi Coefficient for Z= " << iZ
|
|---|
| 643 | << " E(keV)= " << energy/keV
|
|---|
| 644 | << " Eav(keV)= " << eAverage/keV
|
|---|
| 645 | << " coeff= " << coeff
|
|---|
| 646 | << G4endl;
|
|---|
| 647 | }
|
|---|
| 648 | energyVector->push_back(energy);
|
|---|
| 649 | ksi->push_back(coeff);
|
|---|
| 650 | }
|
|---|
| 651 | G4VEMDataSet* p = new G4EMDataSet(iZ,energyVector,ksi,interp,1.,1.);
|
|---|
| 652 | xsis->AddComponent(p);
|
|---|
| 653 | }
|
|---|
| 654 | if(verboseLevel>0) xsis->PrintData();
|
|---|
| 655 | shellVacancy->AddXsiTable(xsis);
|
|---|
| 656 | }
|
|---|
| 657 | }
|
|---|
| 658 |
|
|---|
| 659 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|---|
| 660 |
|
|---|
| 661 | void G4LivermoreIonisationModel::ActivateAuger(G4bool val)
|
|---|
| 662 | {
|
|---|
| 663 | deexcitationManager.ActivateAugerElectronProduction(val);
|
|---|
| 664 | }
|
|---|
| 665 |
|
|---|