[1350] | 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: G4DNARuddIonisationExtendedModel.cc,v 1.3 2010/11/04 14:52:17 sincerti Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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| 28 | // |
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| 29 | |
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| 30 | |
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| 31 | // Modified by Z. Francis to handle HZE && inverse rudd function sampling 26-10-2010 |
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| 32 | |
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| 33 | #include "G4DNARuddIonisationExtendedModel.hh" |
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| 34 | |
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| 35 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 36 | |
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| 37 | using namespace std; |
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| 38 | |
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| 39 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 40 | |
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| 41 | G4DNARuddIonisationExtendedModel::G4DNARuddIonisationExtendedModel(const G4ParticleDefinition*, |
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| 42 | const G4String& nam) |
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| 43 | :G4VEmModel(nam),isInitialised(false) |
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| 44 | { |
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| 45 | |
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| 46 | lowEnergyLimitForA[1] = 0 * eV; |
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| 47 | lowEnergyLimitForA[2] = 0 * eV; |
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| 48 | lowEnergyLimitForA[3] = 0 * eV; |
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| 49 | lowEnergyLimitOfModelForA[1] = 100 * eV; |
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| 50 | lowEnergyLimitOfModelForA[4] = 1 * keV; |
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| 51 | lowEnergyLimitOfModelForA[5] = 0.5 * MeV; // For A = 3 or above, limit is MeV/uma |
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| 52 | killBelowEnergyForA[1] = lowEnergyLimitOfModelForA[1]; |
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| 53 | killBelowEnergyForA[4] = lowEnergyLimitOfModelForA[4]; |
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| 54 | killBelowEnergyForA[5] = lowEnergyLimitOfModelForA[5]; |
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| 55 | |
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| 56 | |
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| 57 | verboseLevel= 0; |
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| 58 | // Verbosity scale: |
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| 59 | // 0 = nothing |
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| 60 | // 1 = warning for energy non-conservation |
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| 61 | // 2 = details of energy budget |
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| 62 | // 3 = calculation of cross sections, file openings, sampling of atoms |
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| 63 | // 4 = entering in methods |
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| 64 | |
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| 65 | if( verboseLevel>0 ) |
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| 66 | { |
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| 67 | G4cout << "Rudd ionisation model is constructed " << G4endl; |
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| 68 | } |
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| 69 | } |
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| 70 | |
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| 71 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 72 | |
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| 73 | G4DNARuddIonisationExtendedModel::~G4DNARuddIonisationExtendedModel() |
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| 74 | { |
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| 75 | // Cross section |
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| 76 | |
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| 77 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
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| 78 | for (pos = tableData.begin(); pos != tableData.end(); ++pos) |
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| 79 | { |
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| 80 | G4DNACrossSectionDataSet* table = pos->second; |
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| 81 | delete table; |
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| 82 | } |
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| 83 | |
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| 84 | } |
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| 85 | |
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| 86 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 87 | |
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| 88 | void G4DNARuddIonisationExtendedModel::Initialise(const G4ParticleDefinition* particle, |
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| 89 | const G4DataVector& /*cuts*/) |
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| 90 | { |
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| 91 | |
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| 92 | if (verboseLevel > 3) |
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| 93 | G4cout << "Calling G4DNARuddIonisationExtendedModel::Initialise()" << G4endl; |
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| 94 | |
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| 95 | // Energy limits |
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| 96 | |
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| 97 | G4String fileProton("dna/sigma_ionisation_p_rudd"); |
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| 98 | G4String fileHydrogen("dna/sigma_ionisation_h_rudd"); |
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| 99 | G4String fileAlphaPlusPlus("dna/sigma_ionisation_alphaplusplus_rudd"); |
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| 100 | G4String fileAlphaPlus("dna/sigma_ionisation_alphaplus_rudd"); |
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| 101 | G4String fileHelium("dna/sigma_ionisation_he_rudd"); |
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| 102 | G4String fileCarbon("dna/sigma_ionisation_c_rudd"); |
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| 103 | G4String fileNitrogen("dna/sigma_ionisation_n_rudd"); |
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| 104 | G4String fileOxygen("dna/sigma_ionisation_o_rudd"); |
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| 105 | G4String fileIron("dna/sigma_ionisation_fe_rudd"); |
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| 106 | |
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| 107 | G4DNAGenericIonsManager *instance; |
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| 108 | instance = G4DNAGenericIonsManager::Instance(); |
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| 109 | G4ParticleDefinition* protonDef = G4Proton::ProtonDefinition(); |
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| 110 | G4ParticleDefinition* hydrogenDef = instance->GetIon("hydrogen"); |
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| 111 | G4ParticleDefinition* alphaPlusPlusDef = instance->GetIon("alpha++"); |
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| 112 | G4ParticleDefinition* alphaPlusDef = instance->GetIon("alpha+"); |
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| 113 | G4ParticleDefinition* heliumDef = instance->GetIon("helium"); |
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| 114 | G4ParticleDefinition* carbonDef = instance->GetIon("carbon"); |
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| 115 | G4ParticleDefinition* nitrogenDef = instance->GetIon("nitrogen"); |
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| 116 | G4ParticleDefinition* oxygenDef = instance->GetIon("oxygen"); |
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| 117 | G4ParticleDefinition* ironDef = instance->GetIon("iron"); |
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| 118 | |
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| 119 | G4String proton; |
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| 120 | G4String hydrogen; |
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| 121 | G4String alphaPlusPlus; |
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| 122 | G4String alphaPlus; |
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| 123 | G4String helium; |
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| 124 | G4String carbon; |
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| 125 | G4String nitrogen; |
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| 126 | G4String oxygen; |
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| 127 | G4String iron; |
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| 128 | |
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| 129 | G4double scaleFactor = 1 * m*m; |
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| 130 | |
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| 131 | if (protonDef != 0) |
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| 132 | { |
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| 133 | proton = protonDef->GetParticleName(); |
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| 134 | tableFile[proton] = fileProton; |
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| 135 | lowEnergyLimit[proton] = lowEnergyLimitForA[1]; |
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| 136 | highEnergyLimit[proton] = 500. * keV; |
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| 137 | |
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| 138 | // Cross section |
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| 139 | |
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| 140 | G4DNACrossSectionDataSet* tableProton = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, |
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| 141 | eV, |
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| 142 | scaleFactor ); |
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| 143 | tableProton->LoadData(fileProton); |
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| 144 | tableData[proton] = tableProton; |
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| 145 | } |
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| 146 | else |
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| 147 | { |
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| 148 | G4Exception("G4DNARuddIonisationExtendedModel::Initialise: proton is not defined"); |
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| 149 | } |
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| 150 | |
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| 151 | if (hydrogenDef != 0) |
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| 152 | { |
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| 153 | hydrogen = hydrogenDef->GetParticleName(); |
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| 154 | tableFile[hydrogen] = fileHydrogen; |
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| 155 | |
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| 156 | lowEnergyLimit[hydrogen] = lowEnergyLimitForA[1]; |
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| 157 | highEnergyLimit[hydrogen] = 100. * MeV; |
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| 158 | |
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| 159 | // Cross section |
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| 160 | |
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| 161 | G4DNACrossSectionDataSet* tableHydrogen = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, |
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| 162 | eV, |
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| 163 | scaleFactor ); |
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| 164 | tableHydrogen->LoadData(fileHydrogen); |
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| 165 | |
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| 166 | tableData[hydrogen] = tableHydrogen; |
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| 167 | } |
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| 168 | else |
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| 169 | { |
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| 170 | G4Exception("G4DNARuddIonisationExtendedModel::Initialise: hydrogen is not defined"); |
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| 171 | } |
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| 172 | |
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| 173 | if (alphaPlusPlusDef != 0) |
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| 174 | { |
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| 175 | alphaPlusPlus = alphaPlusPlusDef->GetParticleName(); |
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| 176 | tableFile[alphaPlusPlus] = fileAlphaPlusPlus; |
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| 177 | |
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| 178 | lowEnergyLimit[alphaPlusPlus] = lowEnergyLimitForA[4]; |
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| 179 | highEnergyLimit[alphaPlusPlus] = 400. * MeV; |
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| 180 | |
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| 181 | // Cross section |
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| 182 | |
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| 183 | G4DNACrossSectionDataSet* tableAlphaPlusPlus = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, |
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| 184 | eV, |
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| 185 | scaleFactor ); |
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| 186 | tableAlphaPlusPlus->LoadData(fileAlphaPlusPlus); |
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| 187 | |
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| 188 | tableData[alphaPlusPlus] = tableAlphaPlusPlus; |
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| 189 | } |
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| 190 | else |
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| 191 | { |
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| 192 | G4Exception("G4DNARuddIonisationExtendedModel::Initialise: alphaPlusPlus is not defined"); |
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| 193 | } |
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| 194 | |
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| 195 | if (alphaPlusDef != 0) |
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| 196 | { |
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| 197 | alphaPlus = alphaPlusDef->GetParticleName(); |
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| 198 | tableFile[alphaPlus] = fileAlphaPlus; |
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| 199 | |
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| 200 | lowEnergyLimit[alphaPlus] = lowEnergyLimitForA[4]; |
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| 201 | highEnergyLimit[alphaPlus] = 400. * MeV; |
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| 202 | |
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| 203 | // Cross section |
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| 204 | |
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| 205 | G4DNACrossSectionDataSet* tableAlphaPlus = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, |
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| 206 | eV, |
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| 207 | scaleFactor ); |
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| 208 | tableAlphaPlus->LoadData(fileAlphaPlus); |
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| 209 | tableData[alphaPlus] = tableAlphaPlus; |
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| 210 | } |
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| 211 | else |
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| 212 | { |
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| 213 | G4Exception("G4DNARuddIonisationExtendedModel::Initialise: alphaPlus is not defined"); |
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| 214 | } |
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| 215 | |
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| 216 | if (heliumDef != 0) |
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| 217 | { |
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| 218 | helium = heliumDef->GetParticleName(); |
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| 219 | tableFile[helium] = fileHelium; |
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| 220 | |
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| 221 | lowEnergyLimit[helium] = lowEnergyLimitForA[4]; |
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| 222 | highEnergyLimit[helium] = 400. * MeV; |
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| 223 | |
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| 224 | // Cross section |
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| 225 | |
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| 226 | G4DNACrossSectionDataSet* tableHelium = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, |
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| 227 | eV, |
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| 228 | scaleFactor ); |
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| 229 | tableHelium->LoadData(fileHelium); |
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| 230 | tableData[helium] = tableHelium; |
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| 231 | } |
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| 232 | else |
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| 233 | { |
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| 234 | G4Exception("G4DNARuddIonisationExtendedModel::Initialise: helium is not defined"); |
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| 235 | } |
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| 236 | |
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| 237 | if (carbonDef != 0) |
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| 238 | { |
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| 239 | carbon = carbonDef->GetParticleName(); |
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| 240 | tableFile[carbon] = fileCarbon; |
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| 241 | |
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| 242 | lowEnergyLimit[carbon] = lowEnergyLimitForA[5] * particle->GetAtomicMass(); |
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| 243 | highEnergyLimit[carbon] = 1e6* particle->GetAtomicMass() * MeV; |
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| 244 | |
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| 245 | // Cross section |
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| 246 | |
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| 247 | G4DNACrossSectionDataSet* tableCarbon = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, |
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| 248 | eV, |
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| 249 | scaleFactor ); |
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| 250 | tableCarbon->LoadData(fileCarbon); |
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| 251 | tableData[carbon] = tableCarbon; |
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| 252 | } |
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| 253 | else |
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| 254 | { |
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| 255 | G4Exception("G4DNARuddIonisationExtendedModel::Initialise: Carbon is not defined"); |
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| 256 | } |
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| 257 | |
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| 258 | if (oxygenDef != 0) |
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| 259 | { |
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| 260 | oxygen = oxygenDef->GetParticleName(); |
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| 261 | tableFile[oxygen] = fileOxygen; |
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| 262 | |
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| 263 | lowEnergyLimit[oxygen] = lowEnergyLimitForA[5]* particle->GetAtomicMass(); |
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| 264 | highEnergyLimit[oxygen] = 1e6* particle->GetAtomicMass()* MeV; |
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| 265 | |
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| 266 | // Cross section |
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| 267 | |
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| 268 | G4DNACrossSectionDataSet* tableOxygen = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, |
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| 269 | eV, |
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| 270 | scaleFactor ); |
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| 271 | tableOxygen->LoadData(fileOxygen); |
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| 272 | tableData[oxygen] = tableOxygen; |
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| 273 | } |
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| 274 | else |
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| 275 | { |
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| 276 | G4Exception("G4DNARuddIonisationExtendedModel::Initialise: Oxygen is not defined"); |
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| 277 | } |
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| 278 | |
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| 279 | if (nitrogenDef != 0) |
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| 280 | { |
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| 281 | nitrogen = nitrogenDef->GetParticleName(); |
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| 282 | tableFile[nitrogen] = fileNitrogen; |
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| 283 | |
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| 284 | lowEnergyLimit[nitrogen] = lowEnergyLimitForA[5]* particle->GetAtomicMass(); |
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| 285 | highEnergyLimit[nitrogen] = 1e6* particle->GetAtomicMass()* MeV; |
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| 286 | |
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| 287 | // Cross section |
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| 288 | |
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| 289 | G4DNACrossSectionDataSet* tableNitrogen = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, |
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| 290 | eV, |
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| 291 | scaleFactor ); |
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| 292 | tableNitrogen->LoadData(fileNitrogen); |
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| 293 | tableData[nitrogen] = tableNitrogen; |
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| 294 | } |
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| 295 | else |
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| 296 | { |
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| 297 | G4Exception("G4DNARuddIonisationExtendedModel::Initialise: Nitrogen is not defined"); |
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| 298 | } |
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| 299 | |
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| 300 | if (ironDef != 0) |
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| 301 | { |
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| 302 | iron = ironDef->GetParticleName(); |
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| 303 | tableFile[iron] = fileIron; |
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| 304 | |
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| 305 | lowEnergyLimit[iron] = lowEnergyLimitForA[5]* particle->GetAtomicMass(); |
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| 306 | highEnergyLimit[iron] = 1e6* particle->GetAtomicMass()* MeV; |
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| 307 | |
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| 308 | // Cross section |
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| 309 | |
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| 310 | G4DNACrossSectionDataSet* tableIron = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, |
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| 311 | eV, |
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| 312 | scaleFactor ); |
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| 313 | tableIron->LoadData(fileIron); |
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| 314 | tableData[iron] = tableIron; |
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| 315 | } |
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| 316 | else |
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| 317 | { |
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| 318 | G4Exception("G4DNARuddIonisationExtendedModel::Initialise: Iron is not defined"); |
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| 319 | } |
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| 320 | |
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| 321 | // ZF Following lines can be replaced by: |
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| 322 | SetLowEnergyLimit(lowEnergyLimit[particle->GetParticleName()]); |
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| 323 | SetHighEnergyLimit(highEnergyLimit[particle->GetParticleName()]); |
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| 324 | // at least for HZE |
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| 325 | |
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| 326 | /* |
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| 327 | if (particle==protonDef) |
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| 328 | { |
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| 329 | SetLowEnergyLimit(lowEnergyLimit[proton]); |
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| 330 | SetHighEnergyLimit(highEnergyLimit[proton]); |
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| 331 | } |
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| 332 | |
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| 333 | if (particle==hydrogenDef) |
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| 334 | { |
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| 335 | SetLowEnergyLimit(lowEnergyLimit[hydrogen]); |
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| 336 | SetHighEnergyLimit(highEnergyLimit[hydrogen]); |
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| 337 | } |
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| 338 | |
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| 339 | if (particle==heliumDef) |
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| 340 | { |
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| 341 | SetLowEnergyLimit(lowEnergyLimit[helium]); |
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| 342 | SetHighEnergyLimit(highEnergyLimit[helium]); |
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| 343 | } |
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| 344 | |
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| 345 | if (particle==alphaPlusDef) |
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| 346 | { |
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| 347 | SetLowEnergyLimit(lowEnergyLimit[alphaPlus]); |
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| 348 | SetHighEnergyLimit(highEnergyLimit[alphaPlus]); |
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| 349 | } |
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| 350 | |
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| 351 | if (particle==alphaPlusPlusDef) |
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| 352 | { |
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| 353 | SetLowEnergyLimit(lowEnergyLimit[alphaPlusPlus]); |
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| 354 | SetHighEnergyLimit(highEnergyLimit[alphaPlusPlus]); |
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| 355 | } |
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| 356 | |
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| 357 | if (particle==carbonDef) |
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| 358 | { |
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| 359 | SetLowEnergyLimit(lowEnergyLimit[carbon]); |
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| 360 | SetHighEnergyLimit(highEnergyLimit[carbon]); |
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| 361 | } |
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| 362 | |
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| 363 | if (particle==oxygenDef) |
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| 364 | { |
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| 365 | SetLowEnergyLimit(lowEnergyLimit[oxygen]); |
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| 366 | SetHighEnergyLimit(highEnergyLimit[oxygen]); |
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| 367 | }*/ |
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| 368 | |
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| 369 | //---------------------------------------------------------------------- |
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| 370 | |
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| 371 | if( verboseLevel>0 ) |
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| 372 | { |
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| 373 | G4cout << "Rudd ionisation model is initialized " << G4endl |
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| 374 | << "Energy range: " |
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| 375 | << LowEnergyLimit() / eV << " eV - " |
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| 376 | << HighEnergyLimit() / keV << " keV for " |
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| 377 | << particle->GetParticleName() |
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| 378 | << G4endl; |
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| 379 | } |
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| 380 | |
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| 381 | // |
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| 382 | |
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| 383 | if(!isInitialised) |
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| 384 | { |
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| 385 | isInitialised = true; |
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| 386 | |
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| 387 | if(pParticleChange) |
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| 388 | fParticleChangeForGamma = reinterpret_cast<G4ParticleChangeForGamma*>(pParticleChange); |
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| 389 | else |
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| 390 | fParticleChangeForGamma = new G4ParticleChangeForGamma(); |
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| 391 | } |
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| 392 | } |
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| 393 | |
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| 394 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 395 | |
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| 396 | G4double G4DNARuddIonisationExtendedModel::CrossSectionPerVolume(const G4Material* material, |
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| 397 | const G4ParticleDefinition* particleDefinition, |
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| 398 | G4double k, |
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| 399 | G4double, |
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| 400 | G4double) |
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| 401 | { |
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| 402 | if (verboseLevel > 3) |
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| 403 | G4cout << "Calling CrossSectionPerVolume() of G4DNARuddIonisationExtendedModel" << G4endl; |
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| 404 | |
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| 405 | // Calculate total cross section for model |
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| 406 | |
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| 407 | G4DNAGenericIonsManager *instance; |
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| 408 | instance = G4DNAGenericIonsManager::Instance(); |
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| 409 | |
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| 410 | if ( |
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| 411 | particleDefinition != G4Proton::ProtonDefinition() |
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| 412 | && |
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| 413 | particleDefinition != instance->GetIon("hydrogen") |
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| 414 | && |
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| 415 | particleDefinition != instance->GetIon("alpha++") |
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| 416 | && |
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| 417 | particleDefinition != instance->GetIon("alpha+") |
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| 418 | && |
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| 419 | particleDefinition != instance->GetIon("helium") |
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| 420 | && |
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| 421 | particleDefinition != instance->GetIon("carbon") |
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| 422 | && |
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| 423 | particleDefinition != instance->GetIon("nitrogen") |
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| 424 | && |
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| 425 | particleDefinition != instance->GetIon("oxygen") |
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| 426 | && |
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| 427 | particleDefinition != instance->GetIon("iron") |
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| 428 | ) |
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| 429 | |
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| 430 | return 0; |
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| 431 | |
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| 432 | G4double lowLim = 0; |
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| 433 | |
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| 434 | if ( particleDefinition == G4Proton::ProtonDefinition() |
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| 435 | || particleDefinition == instance->GetIon("hydrogen") |
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| 436 | ) |
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| 437 | |
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| 438 | lowLim = lowEnergyLimitOfModelForA[1]; |
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| 439 | |
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| 440 | else if ( particleDefinition == instance->GetIon("alpha++") |
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| 441 | || particleDefinition == instance->GetIon("alpha+") |
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| 442 | || particleDefinition == instance->GetIon("helium") |
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| 443 | ) |
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| 444 | |
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| 445 | lowLim = lowEnergyLimitOfModelForA[4]; |
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| 446 | |
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| 447 | else lowLim = lowEnergyLimitOfModelForA[5]; |
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| 448 | |
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| 449 | G4double highLim = 0; |
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| 450 | G4double sigma=0; |
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| 451 | |
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| 452 | if (material->GetName() == "G4_WATER") |
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| 453 | { |
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| 454 | const G4String& particleName = particleDefinition->GetParticleName(); |
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| 455 | |
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| 456 | std::map< G4String,G4double,std::less<G4String> >::iterator pos2; |
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| 457 | pos2 = highEnergyLimit.find(particleName); |
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| 458 | |
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| 459 | if (pos2 != highEnergyLimit.end()) |
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| 460 | { |
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| 461 | highLim = pos2->second; |
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| 462 | } |
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| 463 | |
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| 464 | if (k <= highLim) |
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| 465 | { |
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| 466 | |
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| 467 | //SI : XS must not be zero otherwise sampling of secondaries method ignored |
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| 468 | |
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| 469 | if (k < lowLim) k = lowLim; |
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| 470 | |
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| 471 | // |
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| 472 | |
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| 473 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
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| 474 | pos = tableData.find(particleName); |
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| 475 | |
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| 476 | if (pos != tableData.end()) |
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| 477 | { |
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| 478 | G4DNACrossSectionDataSet* table = pos->second; |
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| 479 | if (table != 0) |
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| 480 | { |
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| 481 | sigma = table->FindValue(k); |
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| 482 | } |
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| 483 | } |
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| 484 | else |
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| 485 | { |
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| 486 | G4Exception |
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| 487 | ("G4DNARuddIonisationExtendedModel::CrossSectionPerVolume: attempting to calculate cross section for wrong particle"); |
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| 488 | } |
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| 489 | |
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| 490 | } // if (k >= lowLim && k < highLim) |
---|
| 491 | |
---|
| 492 | if (verboseLevel > 3) |
---|
| 493 | { |
---|
| 494 | G4cout << "---> Kinetic energy(eV)=" << k/eV << G4endl; |
---|
| 495 | G4cout << " - Cross section per water molecule (cm^2)=" << sigma/cm/cm << G4endl; |
---|
| 496 | G4cout << " - Cross section per water molecule (cm^-1)=" << sigma*densityWater/(1./cm) << G4endl; |
---|
| 497 | } |
---|
| 498 | |
---|
| 499 | } // if (waterMaterial) |
---|
| 500 | |
---|
| 501 | return sigma*material->GetAtomicNumDensityVector()[1]; |
---|
| 502 | |
---|
| 503 | } |
---|
| 504 | |
---|
| 505 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 506 | |
---|
| 507 | void G4DNARuddIonisationExtendedModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect, |
---|
| 508 | const G4MaterialCutsCouple* /*couple*/, |
---|
| 509 | const G4DynamicParticle* particle, |
---|
| 510 | G4double, |
---|
| 511 | G4double) |
---|
| 512 | { |
---|
| 513 | if (verboseLevel > 3) |
---|
| 514 | G4cout << "Calling SampleSecondaries() of G4DNARuddIonisationExtendedModel" << G4endl; |
---|
| 515 | |
---|
| 516 | G4double lowLim = 0; |
---|
| 517 | G4double highLim = 0; |
---|
| 518 | |
---|
| 519 | G4DNAGenericIonsManager *instance; |
---|
| 520 | instance = G4DNAGenericIonsManager::Instance(); |
---|
| 521 | |
---|
| 522 | // ZF: the following line summarizes the commented part |
---|
| 523 | if(particle->GetDefinition()->GetAtomicMass() <= 4) lowLim = killBelowEnergyForA[particle->GetDefinition()->GetAtomicMass()]; |
---|
| 524 | else lowLim = killBelowEnergyForA[5]*particle->GetDefinition()->GetAtomicMass(); |
---|
| 525 | |
---|
| 526 | /*if(particle->GetDefinition()->GetAtomicMass() >= 5) lowLim = killBelowEnergyForA[5]*particle->GetDefinition()->GetAtomicMass(); |
---|
| 527 | |
---|
| 528 | |
---|
| 529 | if ( particle->GetDefinition() == G4Proton::ProtonDefinition() |
---|
| 530 | || particle->GetDefinition() == instance->GetIon("hydrogen") |
---|
| 531 | ) |
---|
| 532 | |
---|
| 533 | lowLim = killBelowEnergyForA[1]; |
---|
| 534 | |
---|
| 535 | if ( particle->GetDefinition() == instance->GetIon("alpha++") |
---|
| 536 | || particle->GetDefinition() == instance->GetIon("alpha+") |
---|
| 537 | || particle->GetDefinition() == instance->GetIon("helium") |
---|
| 538 | ) |
---|
| 539 | |
---|
| 540 | lowLim = killBelowEnergyForA[4];*/ |
---|
| 541 | |
---|
| 542 | |
---|
| 543 | |
---|
| 544 | G4double k = particle->GetKineticEnergy(); |
---|
| 545 | |
---|
| 546 | const G4String& particleName = particle->GetDefinition()->GetParticleName(); |
---|
| 547 | |
---|
| 548 | // SI - the following is useless since lowLim is already defined |
---|
| 549 | /* |
---|
| 550 | std::map< G4String,G4double,std::less<G4String> >::iterator pos1; |
---|
| 551 | pos1 = lowEnergyLimit.find(particleName); |
---|
| 552 | |
---|
| 553 | if (pos1 != lowEnergyLimit.end()) |
---|
| 554 | { |
---|
| 555 | lowLim = pos1->second; |
---|
| 556 | } |
---|
| 557 | */ |
---|
| 558 | |
---|
| 559 | std::map< G4String,G4double,std::less<G4String> >::iterator pos2; |
---|
| 560 | pos2 = highEnergyLimit.find(particleName); |
---|
| 561 | |
---|
| 562 | if (pos2 != highEnergyLimit.end())highLim = pos2->second; |
---|
| 563 | |
---|
| 564 | if (k >= lowLim && k < highLim) |
---|
| 565 | { |
---|
| 566 | G4ParticleDefinition* definition = particle->GetDefinition(); |
---|
| 567 | G4ParticleMomentum primaryDirection = particle->GetMomentumDirection(); |
---|
| 568 | /* |
---|
| 569 | G4double particleMass = definition->GetPDGMass(); |
---|
| 570 | G4double totalEnergy = k + particleMass; |
---|
| 571 | G4double pSquare = k*(totalEnergy+particleMass); |
---|
| 572 | G4double totalMomentum = std::sqrt(pSquare); |
---|
| 573 | */ |
---|
| 574 | |
---|
| 575 | G4int ionizationShell = RandomSelect(k,particleName); |
---|
| 576 | |
---|
| 577 | G4double secondaryKinetic = RandomizeEjectedElectronEnergy(definition,k,ionizationShell); |
---|
| 578 | |
---|
| 579 | G4double bindingEnergy = waterStructure.IonisationEnergy(ionizationShell); |
---|
| 580 | |
---|
| 581 | G4double cosTheta = 0.; |
---|
| 582 | G4double phi = 0.; |
---|
| 583 | RandomizeEjectedElectronDirection(definition, k,secondaryKinetic, cosTheta, phi, ionizationShell); |
---|
| 584 | |
---|
| 585 | G4double sinTheta = std::sqrt(1.-cosTheta*cosTheta); |
---|
| 586 | G4double dirX = sinTheta*std::cos(phi); |
---|
| 587 | G4double dirY = sinTheta*std::sin(phi); |
---|
| 588 | G4double dirZ = cosTheta; |
---|
| 589 | G4ThreeVector deltaDirection(dirX,dirY,dirZ); |
---|
| 590 | deltaDirection.rotateUz(primaryDirection); |
---|
| 591 | |
---|
| 592 | // Ignored for ions on electrons |
---|
| 593 | /* |
---|
| 594 | G4double deltaTotalMomentum = std::sqrt(secondaryKinetic*(secondaryKinetic + 2.*electron_mass_c2 )); |
---|
| 595 | |
---|
| 596 | G4double finalPx = totalMomentum*primaryDirection.x() - deltaTotalMomentum*deltaDirection.x(); |
---|
| 597 | G4double finalPy = totalMomentum*primaryDirection.y() - deltaTotalMomentum*deltaDirection.y(); |
---|
| 598 | G4double finalPz = totalMomentum*primaryDirection.z() - deltaTotalMomentum*deltaDirection.z(); |
---|
| 599 | G4double finalMomentum = std::sqrt(finalPx*finalPx+finalPy*finalPy+finalPz*finalPz); |
---|
| 600 | finalPx /= finalMomentum; |
---|
| 601 | finalPy /= finalMomentum; |
---|
| 602 | finalPz /= finalMomentum; |
---|
| 603 | |
---|
| 604 | G4ThreeVector direction; |
---|
| 605 | direction.set(finalPx,finalPy,finalPz); |
---|
| 606 | |
---|
| 607 | fParticleChangeForGamma->ProposeMomentumDirection(direction.unit()) ; |
---|
| 608 | */ |
---|
| 609 | fParticleChangeForGamma->ProposeMomentumDirection(primaryDirection); |
---|
| 610 | |
---|
| 611 | fParticleChangeForGamma->SetProposedKineticEnergy(k-bindingEnergy-secondaryKinetic); |
---|
| 612 | fParticleChangeForGamma->ProposeLocalEnergyDeposit(bindingEnergy); |
---|
| 613 | |
---|
| 614 | G4DynamicParticle* dp = new G4DynamicParticle (G4Electron::Electron(),deltaDirection,secondaryKinetic) ; |
---|
| 615 | fvect->push_back(dp); |
---|
| 616 | |
---|
| 617 | } |
---|
| 618 | |
---|
| 619 | // SI - not useful since low energy of model is 0 eV |
---|
| 620 | |
---|
| 621 | if (k < lowLim) |
---|
| 622 | { |
---|
| 623 | fParticleChangeForGamma->ProposeTrackStatus(fStopAndKill); |
---|
| 624 | fParticleChangeForGamma->ProposeLocalEnergyDeposit(k); |
---|
| 625 | } |
---|
| 626 | |
---|
| 627 | } |
---|
| 628 | |
---|
| 629 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 630 | |
---|
| 631 | G4double G4DNARuddIonisationExtendedModel::RandomizeEjectedElectronEnergy(G4ParticleDefinition* particleDefinition, |
---|
| 632 | G4double k, |
---|
| 633 | G4int shell) |
---|
| 634 | { |
---|
| 635 | G4DNAGenericIonsManager *instance; |
---|
| 636 | instance = G4DNAGenericIonsManager::Instance(); |
---|
| 637 | |
---|
| 638 | //-- Fast sampling method ----- |
---|
| 639 | G4double proposed_energy; |
---|
| 640 | G4double random1; |
---|
| 641 | G4double value_sampling; |
---|
| 642 | G4double max1; |
---|
| 643 | |
---|
| 644 | do |
---|
| 645 | { |
---|
| 646 | proposed_energy = ProposedSampledEnergy(particleDefinition, k, shell); // Proposed energy by inverse function sampling |
---|
| 647 | |
---|
| 648 | max1=0.; |
---|
| 649 | |
---|
| 650 | for(G4double en=0.; en<20.; en+=1.) if(RejectionFunction(particleDefinition, k, en, shell) > max1) |
---|
| 651 | max1=RejectionFunction(particleDefinition, k, en, shell); |
---|
| 652 | |
---|
| 653 | random1 = G4UniformRand()*max1; |
---|
| 654 | |
---|
| 655 | value_sampling = RejectionFunction(particleDefinition, k, proposed_energy, shell); |
---|
| 656 | |
---|
| 657 | } while(random1 > value_sampling); |
---|
| 658 | |
---|
| 659 | return(proposed_energy); |
---|
| 660 | } |
---|
| 661 | |
---|
| 662 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 663 | |
---|
| 664 | |
---|
| 665 | void G4DNARuddIonisationExtendedModel::RandomizeEjectedElectronDirection(G4ParticleDefinition* particleDefinition, |
---|
| 666 | G4double k, |
---|
| 667 | G4double secKinetic, |
---|
| 668 | G4double & cosTheta, |
---|
| 669 | G4double & phi, |
---|
| 670 | G4int shell ) |
---|
| 671 | { |
---|
| 672 | G4DNAGenericIonsManager *instance; |
---|
| 673 | instance = G4DNAGenericIonsManager::Instance(); |
---|
| 674 | |
---|
| 675 | G4double maxSecKinetic = 0.; |
---|
| 676 | G4double maximumEnergyTransfer = 0.; |
---|
| 677 | |
---|
| 678 | /* if (particleDefinition == G4Proton::ProtonDefinition() |
---|
| 679 | || particleDefinition == instance->GetIon("hydrogen")) |
---|
| 680 | { |
---|
| 681 | if(k/MeV < 100.)maxSecKinetic = 4.* (electron_mass_c2 / proton_mass_c2) * k; |
---|
| 682 | else { |
---|
| 683 | G4double beta2 = 1.-(1.+k*); |
---|
| 684 | maxSecKinetic = |
---|
| 685 | } |
---|
| 686 | } |
---|
| 687 | |
---|
| 688 | if (particleDefinition == instance->GetIon("helium") |
---|
| 689 | || particleDefinition == instance->GetIon("alpha+") |
---|
| 690 | || particleDefinition == instance->GetIon("alpha++")) |
---|
| 691 | { |
---|
| 692 | maxSecKinetic = 4.* (0.511 / 3728) * k; |
---|
| 693 | } |
---|
| 694 | |
---|
| 695 | if (particleDefinition == G4Carbon::Carbon()) |
---|
| 696 | { |
---|
| 697 | maxSecKinetic = 4.* (electron_mass_c2 / proton_mass_c2) * k / 12.; |
---|
| 698 | }*/ |
---|
| 699 | |
---|
| 700 | // ZF. generalized & relativistic version |
---|
| 701 | |
---|
| 702 | if( (k/MeV)/(particleDefinition->GetPDGMass()/MeV) <= 0.1 ) |
---|
| 703 | { |
---|
| 704 | maximumEnergyTransfer= 4.* (electron_mass_c2 / particleDefinition->GetPDGMass()) * k; |
---|
| 705 | maximumEnergyTransfer+=waterStructure.IonisationEnergy(shell); |
---|
| 706 | } |
---|
| 707 | else |
---|
| 708 | { |
---|
| 709 | G4double approx_nuc_number = particleDefinition->GetPDGMass() / proton_mass_c2; |
---|
| 710 | G4double en_per_nucleon = k/approx_nuc_number; |
---|
| 711 | G4double beta2 = 1. - 1./pow( (1.+(en_per_nucleon/electron_mass_c2)*(electron_mass_c2/proton_mass_c2)), 2.); |
---|
| 712 | G4double gamma = 1./sqrt(1.-beta2); |
---|
| 713 | maximumEnergyTransfer = 2.*electron_mass_c2*(gamma*gamma-1.)/(1.+2.*gamma*(electron_mass_c2/particleDefinition->GetPDGMass())+pow(electron_mass_c2/particleDefinition->GetPDGMass(), 2.) ); |
---|
| 714 | maximumEnergyTransfer+=waterStructure.IonisationEnergy(shell); |
---|
| 715 | } |
---|
| 716 | |
---|
| 717 | maxSecKinetic = maximumEnergyTransfer-waterStructure.IonisationEnergy(shell); |
---|
| 718 | |
---|
| 719 | phi = twopi * G4UniformRand(); |
---|
| 720 | |
---|
| 721 | if (secKinetic>100*eV) cosTheta = std::sqrt(secKinetic / maxSecKinetic); |
---|
| 722 | else cosTheta = (2.*G4UniformRand())-1.; |
---|
| 723 | |
---|
| 724 | } |
---|
| 725 | |
---|
| 726 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 727 | |
---|
| 728 | G4double G4DNARuddIonisationExtendedModel::RejectionFunction(G4ParticleDefinition* particleDefinition, |
---|
| 729 | G4double k, |
---|
| 730 | G4double proposed_ws, |
---|
| 731 | G4int ionizationLevelIndex) |
---|
| 732 | { |
---|
| 733 | const G4int j=ionizationLevelIndex; |
---|
| 734 | G4double Bj_energy, alphaConst; |
---|
| 735 | G4double Ry = 13.6*eV; |
---|
| 736 | const G4double Gj[5] = {0.99, 1.11, 1.11, 0.52, 1.}; |
---|
| 737 | |
---|
| 738 | // const G4double Bj[5] = {12.61*eV, 14.73*eV, 18.55*eV, 32.20*eV, 539.7*eV}; //Ding Paper |
---|
| 739 | |
---|
| 740 | // Following values provided by M. Dingfelder (priv. comm) |
---|
| 741 | const G4double Bj[5] = {12.60*eV, 14.70*eV, 18.40*eV, 32.20*eV, 540*eV}; |
---|
| 742 | |
---|
| 743 | if (j == 4) |
---|
| 744 | { |
---|
| 745 | alphaConst = 0.66; |
---|
| 746 | //---Note that the following (j==4) cases are provided by M. Dingfelder (priv. comm) |
---|
| 747 | Bj_energy = waterStructure.IonisationEnergy(ionizationLevelIndex); |
---|
| 748 | //--- |
---|
| 749 | } |
---|
| 750 | else |
---|
| 751 | { |
---|
| 752 | alphaConst = 0.64; |
---|
| 753 | Bj_energy = Bj[ionizationLevelIndex]; |
---|
| 754 | } |
---|
| 755 | |
---|
| 756 | G4double energyTransfer = proposed_ws + Bj_energy; |
---|
| 757 | proposed_ws/=Bj_energy; |
---|
| 758 | G4DNAGenericIonsManager *instance; |
---|
| 759 | instance = G4DNAGenericIonsManager::Instance(); |
---|
| 760 | G4double tau = 0.; |
---|
| 761 | G4double A_ion = 0.; |
---|
| 762 | tau = (electron_mass_c2 / particleDefinition->GetPDGMass()) * k; |
---|
| 763 | A_ion = particleDefinition->GetAtomicMass(); |
---|
| 764 | |
---|
| 765 | G4double v2; |
---|
| 766 | G4double beta2; |
---|
| 767 | |
---|
| 768 | if((tau/MeV)<5.447761194e-2) |
---|
| 769 | { |
---|
| 770 | v2 = tau / Bj_energy; |
---|
| 771 | beta2 = 2.*tau / electron_mass_c2; |
---|
| 772 | } |
---|
| 773 | // Relativistic |
---|
| 774 | else |
---|
| 775 | { |
---|
| 776 | v2 = (electron_mass_c2 / 2. / Bj_energy) * (1. - (1./ pow( (1.+ (tau/electron_mass_c2)),2) )); |
---|
| 777 | beta2 =1. - 1./(1.+ (tau/electron_mass_c2/A_ion))/(1.+ (tau/electron_mass_c2/A_ion)); |
---|
| 778 | } |
---|
| 779 | |
---|
| 780 | G4double v = std::sqrt(v2); |
---|
| 781 | G4double wc = 4.*v2 - 2.*v - (Ry/(4.*Bj_energy)); |
---|
| 782 | G4double rejection_term = 1.+std::exp(alphaConst*(proposed_ws - wc) / v); |
---|
| 783 | rejection_term = (1./rejection_term)*CorrectionFactor(particleDefinition,k,ionizationLevelIndex) * Gj[j]; |
---|
| 784 | //* (S/Bj_energy) ; Not needed anymore |
---|
| 785 | |
---|
| 786 | |
---|
| 787 | if ( particleDefinition == G4Proton::ProtonDefinition() |
---|
| 788 | || particleDefinition == instance->GetIon("hydrogen") |
---|
| 789 | ) |
---|
| 790 | { |
---|
| 791 | return(rejection_term); |
---|
| 792 | } |
---|
| 793 | |
---|
| 794 | if(particleDefinition->GetAtomicMass() > 4) // anything above Helium |
---|
| 795 | { |
---|
| 796 | G4double Z = particleDefinition->GetAtomicNumber(); |
---|
| 797 | G4double x = 100.*std::sqrt(beta2)/std::pow(Z,(2./3.)); |
---|
| 798 | G4double Zeffion = Z*(1.-std::exp(-1.316*x+0.112*x*x-0.0650*x*x*x)); |
---|
| 799 | rejection_term*=Zeffion*Zeffion; |
---|
| 800 | } |
---|
| 801 | |
---|
| 802 | if (particleDefinition == instance->GetIon("alpha++") ) |
---|
| 803 | { |
---|
| 804 | slaterEffectiveCharge[0]=0.; |
---|
| 805 | slaterEffectiveCharge[1]=0.; |
---|
| 806 | slaterEffectiveCharge[2]=0.; |
---|
| 807 | sCoefficient[0]=0.; |
---|
| 808 | sCoefficient[1]=0.; |
---|
| 809 | sCoefficient[2]=0.; |
---|
| 810 | } |
---|
| 811 | |
---|
| 812 | if (particleDefinition == instance->GetIon("alpha+") ) |
---|
| 813 | { |
---|
| 814 | slaterEffectiveCharge[0]=2.0; |
---|
| 815 | // The following values are provided by M. Dingfelder (priv. comm) |
---|
| 816 | slaterEffectiveCharge[1]=2.0; |
---|
| 817 | slaterEffectiveCharge[2]=2.0; |
---|
| 818 | // |
---|
| 819 | sCoefficient[0]=0.7; |
---|
| 820 | sCoefficient[1]=0.15; |
---|
| 821 | sCoefficient[2]=0.15; |
---|
| 822 | } |
---|
| 823 | |
---|
| 824 | if (particleDefinition == instance->GetIon("helium") ) |
---|
| 825 | { |
---|
| 826 | slaterEffectiveCharge[0]=1.7; |
---|
| 827 | slaterEffectiveCharge[1]=1.15; |
---|
| 828 | slaterEffectiveCharge[2]=1.15; |
---|
| 829 | sCoefficient[0]=0.5; |
---|
| 830 | sCoefficient[1]=0.25; |
---|
| 831 | sCoefficient[2]=0.25; |
---|
| 832 | } |
---|
| 833 | |
---|
| 834 | if ( particleDefinition == instance->GetIon("helium") |
---|
| 835 | || particleDefinition == instance->GetIon("alpha+") |
---|
| 836 | || particleDefinition == instance->GetIon("alpha++") |
---|
| 837 | ) |
---|
| 838 | { |
---|
| 839 | |
---|
| 840 | G4double zEff = particleDefinition->GetPDGCharge() / eplus + particleDefinition->GetLeptonNumber(); |
---|
| 841 | |
---|
| 842 | zEff -= ( sCoefficient[0] * S_1s(k, energyTransfer, slaterEffectiveCharge[0], 1.) + |
---|
| 843 | sCoefficient[1] * S_2s(k, energyTransfer, slaterEffectiveCharge[1], 2.) + |
---|
| 844 | sCoefficient[2] * S_2p(k, energyTransfer, slaterEffectiveCharge[2], 2.) ); |
---|
| 845 | |
---|
| 846 | rejection_term*= zEff * zEff; |
---|
| 847 | } |
---|
| 848 | |
---|
| 849 | return (rejection_term); |
---|
| 850 | } |
---|
| 851 | |
---|
| 852 | |
---|
| 853 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 854 | |
---|
| 855 | |
---|
| 856 | G4double G4DNARuddIonisationExtendedModel::ProposedSampledEnergy(G4ParticleDefinition* particle, |
---|
| 857 | G4double k, |
---|
| 858 | G4int ionizationLevelIndex) |
---|
| 859 | { |
---|
| 860 | |
---|
| 861 | const G4int j=ionizationLevelIndex; |
---|
| 862 | |
---|
| 863 | G4double A1, B1, C1, D1, E1, A2, B2, C2, D2, alphaConst ; |
---|
| 864 | G4double Bj_energy; |
---|
| 865 | |
---|
| 866 | // const G4double Bj[5] = {12.61*eV, 14.73*eV, 18.55*eV, 32.20*eV, 539.7*eV}; //Ding Paper |
---|
| 867 | // Following values provided by M. Dingfelder (priv. comm) |
---|
| 868 | |
---|
| 869 | const G4double Bj[5] = {12.60*eV, 14.70*eV, 18.40*eV, 32.20*eV, 540*eV}; |
---|
| 870 | |
---|
| 871 | if (j == 4) |
---|
| 872 | { |
---|
| 873 | //Data For Liquid Water K SHELL from Dingfelder (Protons in Water) |
---|
| 874 | A1 = 1.25; |
---|
| 875 | B1 = 0.5; |
---|
| 876 | C1 = 1.00; |
---|
| 877 | D1 = 1.00; |
---|
| 878 | E1 = 3.00; |
---|
| 879 | A2 = 1.10; |
---|
| 880 | B2 = 1.30; |
---|
| 881 | C2 = 1.00; |
---|
| 882 | D2 = 0.00; |
---|
| 883 | alphaConst = 0.66; |
---|
| 884 | //---Note that the following (j==4) cases are provided by M. Dingfelder (priv. comm) |
---|
| 885 | Bj_energy = waterStructure.IonisationEnergy(ionizationLevelIndex); |
---|
| 886 | //--- |
---|
| 887 | } |
---|
| 888 | else |
---|
| 889 | { |
---|
| 890 | //Data For Liquid Water from Dingfelder (Protons in Water) |
---|
| 891 | A1 = 1.02; |
---|
| 892 | B1 = 82.0; |
---|
| 893 | C1 = 0.45; |
---|
| 894 | D1 = -0.80; |
---|
| 895 | E1 = 0.38; |
---|
| 896 | A2 = 1.07; |
---|
| 897 | //B2 = 14.6; From Ding Paper |
---|
| 898 | // Value provided by M. Dingfelder (priv. comm) |
---|
| 899 | B2 = 11.6; |
---|
| 900 | // |
---|
| 901 | C2 = 0.60; |
---|
| 902 | D2 = 0.04; |
---|
| 903 | alphaConst = 0.64; |
---|
| 904 | |
---|
| 905 | Bj_energy = Bj[ionizationLevelIndex]; |
---|
| 906 | } |
---|
| 907 | |
---|
| 908 | G4double tau = 0.; |
---|
| 909 | G4double A_ion = 0.; |
---|
| 910 | G4DNAGenericIonsManager* instance; |
---|
| 911 | instance = G4DNAGenericIonsManager::Instance(); |
---|
| 912 | tau = (electron_mass_c2 / particle->GetPDGMass()) * k; |
---|
| 913 | |
---|
| 914 | A_ion = particle->GetAtomicMass(); |
---|
| 915 | |
---|
| 916 | G4double v2; |
---|
| 917 | G4double beta2; |
---|
| 918 | if((tau/MeV)<5.447761194e-2) |
---|
| 919 | { |
---|
| 920 | v2 = tau / Bj_energy; |
---|
| 921 | beta2 = 2.*tau / electron_mass_c2; |
---|
| 922 | } |
---|
| 923 | // Relativistic |
---|
| 924 | else |
---|
| 925 | { |
---|
| 926 | v2 = (electron_mass_c2 / 2. / Bj_energy) * (1. - (1./ pow( (1.+ (tau/electron_mass_c2)),2) )); |
---|
| 927 | beta2 =1. - 1./(1.+ (tau/electron_mass_c2/A_ion))/(1.+ (tau/electron_mass_c2/A_ion)); |
---|
| 928 | } |
---|
| 929 | |
---|
| 930 | G4double v = std::sqrt(v2); |
---|
| 931 | //G4double wc = 4.*v2 - 2.*v - (Ry/(4.*Bj_energy)); |
---|
| 932 | G4double L1 = (C1* std::pow(v,(D1))) / (1.+ E1*std::pow(v, (D1+4.))); |
---|
| 933 | G4double L2 = C2*std::pow(v,(D2)); |
---|
| 934 | G4double H1 = (A1*std::log(1.+v2)) / (v2+(B1/v2)); |
---|
| 935 | G4double H2 = (A2/v2) + (B2/(v2*v2)); |
---|
| 936 | G4double F1 = L1+H1; |
---|
| 937 | G4double F2 = (L2*H2)/(L2+H2); |
---|
| 938 | |
---|
| 939 | // ZF. generalized & relativistic version |
---|
| 940 | G4double maximumEnergy; |
---|
| 941 | |
---|
| 942 | //---- maximum kinetic energy , non relativistic ------ |
---|
| 943 | if( (k/MeV)/(particle->GetPDGMass()/MeV) <= 0.1 ) |
---|
| 944 | { |
---|
| 945 | maximumEnergy = 4.* (electron_mass_c2 / particle->GetPDGMass()) * k; |
---|
| 946 | } |
---|
| 947 | //---- relativistic ----------------------------------- |
---|
| 948 | else |
---|
| 949 | { |
---|
| 950 | G4double gamma = 1./sqrt(1.-beta2); |
---|
| 951 | maximumEnergy = 2.*electron_mass_c2*(gamma*gamma-1.)/ |
---|
| 952 | (1.+2.*gamma*(electron_mass_c2/particle->GetPDGMass())+pow(electron_mass_c2/particle->GetPDGMass(), 2.) ); |
---|
| 953 | } |
---|
| 954 | |
---|
| 955 | //either it is transfered energy or secondary electron energy ... |
---|
| 956 | //maximumEnergy-=Bj_energy; |
---|
| 957 | |
---|
| 958 | //----------------------------------------------------- |
---|
| 959 | G4double wmax = maximumEnergy/Bj_energy; |
---|
| 960 | G4double c = wmax*(F2*wmax+F1*(2.+wmax))/(2.*(1.+wmax)*(1.+wmax)); |
---|
| 961 | c=1./c; //!!!!!!!!!!! manual calculus leads to c=1/c |
---|
| 962 | G4double randVal = G4UniformRand(); |
---|
| 963 | G4double proposed_ws = F1*F1*c*c + 2.*F2*c*randVal - 2.*F1*c*randVal; |
---|
| 964 | proposed_ws = -F1*c+2.*randVal+std::sqrt(proposed_ws); |
---|
| 965 | // proposed_ws = -F1*c+2.*randVal-std::sqrt(proposed_ws); |
---|
| 966 | proposed_ws/= ( F1*c + F2*c - 2.*randVal ); |
---|
| 967 | proposed_ws*=Bj_energy; |
---|
| 968 | |
---|
| 969 | return(proposed_ws); |
---|
| 970 | |
---|
| 971 | } |
---|
| 972 | |
---|
| 973 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 974 | |
---|
| 975 | G4double G4DNARuddIonisationExtendedModel::S_1s(G4double t, |
---|
| 976 | G4double energyTransferred, |
---|
| 977 | G4double slaterEffectiveChg, |
---|
| 978 | G4double shellNumber) |
---|
| 979 | { |
---|
| 980 | // 1 - e^(-2r) * ( 1 + 2 r + 2 r^2) |
---|
| 981 | // Dingfelder, in Chattanooga 2005 proceedings, formula (7) |
---|
| 982 | |
---|
| 983 | G4double r = R(t, energyTransferred, slaterEffectiveChg, shellNumber); |
---|
| 984 | G4double value = 1. - std::exp(-2 * r) * ( ( 2. * r + 2. ) * r + 1. ); |
---|
| 985 | |
---|
| 986 | return value; |
---|
| 987 | } |
---|
| 988 | |
---|
| 989 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 990 | |
---|
| 991 | G4double G4DNARuddIonisationExtendedModel::S_2s(G4double t, |
---|
| 992 | G4double energyTransferred, |
---|
| 993 | G4double slaterEffectiveChg, |
---|
| 994 | G4double shellNumber) |
---|
| 995 | { |
---|
| 996 | // 1 - e^(-2 r) * ( 1 + 2 r + 2 r^2 + 2 r^4) |
---|
| 997 | // Dingfelder, in Chattanooga 2005 proceedings, formula (8) |
---|
| 998 | |
---|
| 999 | G4double r = R(t, energyTransferred, slaterEffectiveChg, shellNumber); |
---|
| 1000 | G4double value = 1. - std::exp(-2 * r) * (((2. * r * r + 2.) * r + 2.) * r + 1.); |
---|
| 1001 | |
---|
| 1002 | return value; |
---|
| 1003 | |
---|
| 1004 | } |
---|
| 1005 | |
---|
| 1006 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 1007 | |
---|
| 1008 | G4double G4DNARuddIonisationExtendedModel::S_2p(G4double t, |
---|
| 1009 | G4double energyTransferred, |
---|
| 1010 | G4double slaterEffectiveChg, |
---|
| 1011 | G4double shellNumber) |
---|
| 1012 | { |
---|
| 1013 | // 1 - e^(-2 r) * ( 1 + 2 r + 2 r^2 + 4/3 r^3 + 2/3 r^4) |
---|
| 1014 | // Dingfelder, in Chattanooga 2005 proceedings, formula (9) |
---|
| 1015 | |
---|
| 1016 | G4double r = R(t, energyTransferred, slaterEffectiveChg, shellNumber); |
---|
| 1017 | G4double value = 1. - std::exp(-2 * r) * (((( 2./3. * r + 4./3.) * r + 2.) * r + 2.) * r + 1.); |
---|
| 1018 | |
---|
| 1019 | return value; |
---|
| 1020 | } |
---|
| 1021 | |
---|
| 1022 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 1023 | |
---|
| 1024 | G4double G4DNARuddIonisationExtendedModel::R(G4double t, |
---|
| 1025 | G4double energyTransferred, |
---|
| 1026 | G4double slaterEffectiveChg, |
---|
| 1027 | G4double shellNumber) |
---|
| 1028 | { |
---|
| 1029 | // tElectron = m_electron / m_alpha * t |
---|
| 1030 | // Dingfelder, in Chattanooga 2005 proceedings, p 4 |
---|
| 1031 | |
---|
| 1032 | G4double tElectron = 0.511/3728. * t; |
---|
| 1033 | // The following values are provided by M. Dingfelder (priv. comm) |
---|
| 1034 | G4double H = 2.*13.60569172 * eV; |
---|
| 1035 | G4double value = std::sqrt ( 2. * tElectron / H ) / ( energyTransferred / H ) * (slaterEffectiveChg/shellNumber); |
---|
| 1036 | |
---|
| 1037 | return value; |
---|
| 1038 | } |
---|
| 1039 | |
---|
| 1040 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 1041 | |
---|
| 1042 | G4double G4DNARuddIonisationExtendedModel::CorrectionFactor(G4ParticleDefinition* particleDefinition, G4double k, G4int shell) |
---|
| 1043 | { |
---|
| 1044 | // ZF Shortened |
---|
| 1045 | G4DNAGenericIonsManager *instance; |
---|
| 1046 | instance = G4DNAGenericIonsManager::Instance(); |
---|
| 1047 | |
---|
| 1048 | if (particleDefinition == instance->GetIon("hydrogen") && shell < 4) |
---|
| 1049 | { |
---|
| 1050 | G4double value = (std::log10(k/eV)-4.2)/0.5; |
---|
| 1051 | // The following values are provided by M. Dingfelder (priv. comm) |
---|
| 1052 | return((0.6/(1+std::exp(value))) + 0.9); |
---|
| 1053 | } |
---|
| 1054 | else |
---|
| 1055 | { |
---|
| 1056 | return(1.); |
---|
| 1057 | } |
---|
| 1058 | } |
---|
| 1059 | |
---|
| 1060 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 1061 | |
---|
| 1062 | G4int G4DNARuddIonisationExtendedModel::RandomSelect(G4double k, const G4String& particle ) |
---|
| 1063 | { |
---|
| 1064 | |
---|
| 1065 | G4DNAGenericIonsManager *instance; |
---|
| 1066 | instance = G4DNAGenericIonsManager::Instance(); |
---|
| 1067 | |
---|
| 1068 | G4int level = 0; |
---|
| 1069 | |
---|
| 1070 | // Retrieve data table corresponding to the current particle type |
---|
| 1071 | |
---|
| 1072 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
---|
| 1073 | pos = tableData.find(particle); |
---|
| 1074 | |
---|
| 1075 | if (pos != tableData.end()) |
---|
| 1076 | { |
---|
| 1077 | G4DNACrossSectionDataSet* table = pos->second; |
---|
| 1078 | |
---|
| 1079 | if (table != 0) |
---|
| 1080 | { |
---|
| 1081 | G4double* valuesBuffer = new G4double[table->NumberOfComponents()]; |
---|
| 1082 | |
---|
| 1083 | const size_t n(table->NumberOfComponents()); |
---|
| 1084 | size_t i(n); |
---|
| 1085 | G4double value = 0.; |
---|
| 1086 | |
---|
| 1087 | while (i>0) |
---|
| 1088 | { |
---|
| 1089 | i--; |
---|
| 1090 | valuesBuffer[i] = table->GetComponent(i)->FindValue(k); |
---|
| 1091 | |
---|
| 1092 | value += valuesBuffer[i]; |
---|
| 1093 | } |
---|
| 1094 | |
---|
| 1095 | value *= G4UniformRand(); |
---|
| 1096 | |
---|
| 1097 | i = n; |
---|
| 1098 | |
---|
| 1099 | while (i > 0) |
---|
| 1100 | { |
---|
| 1101 | i--; |
---|
| 1102 | |
---|
| 1103 | if (valuesBuffer[i] > value) |
---|
| 1104 | { |
---|
| 1105 | delete[] valuesBuffer; |
---|
| 1106 | return i; |
---|
| 1107 | } |
---|
| 1108 | value -= valuesBuffer[i]; |
---|
| 1109 | } |
---|
| 1110 | |
---|
| 1111 | if (valuesBuffer) delete[] valuesBuffer; |
---|
| 1112 | |
---|
| 1113 | } |
---|
| 1114 | } |
---|
| 1115 | else |
---|
| 1116 | { |
---|
| 1117 | G4Exception("G4DNARuddIonisationExtendedModel::RandomSelect: attempting to calculate cross section for wrong particle"); |
---|
| 1118 | } |
---|
| 1119 | |
---|
| 1120 | return level; |
---|
| 1121 | } |
---|
| 1122 | |
---|
| 1123 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 1124 | |
---|
| 1125 | G4double G4DNARuddIonisationExtendedModel::PartialCrossSection(const G4Track& track ) |
---|
| 1126 | { |
---|
| 1127 | G4double sigma = 0.; |
---|
| 1128 | |
---|
| 1129 | const G4DynamicParticle* particle = track.GetDynamicParticle(); |
---|
| 1130 | G4double k = particle->GetKineticEnergy(); |
---|
| 1131 | |
---|
| 1132 | G4double lowLim = 0; |
---|
| 1133 | G4double highLim = 0; |
---|
| 1134 | |
---|
| 1135 | const G4String& particleName = particle->GetDefinition()->GetParticleName(); |
---|
| 1136 | |
---|
| 1137 | std::map< G4String,G4double,std::less<G4String> >::iterator pos1; |
---|
| 1138 | pos1 = lowEnergyLimit.find(particleName); |
---|
| 1139 | |
---|
| 1140 | if (pos1 != lowEnergyLimit.end()) |
---|
| 1141 | { |
---|
| 1142 | lowLim = pos1->second; |
---|
| 1143 | } |
---|
| 1144 | |
---|
| 1145 | std::map< G4String,G4double,std::less<G4String> >::iterator pos2; |
---|
| 1146 | pos2 = highEnergyLimit.find(particleName); |
---|
| 1147 | |
---|
| 1148 | if (pos2 != highEnergyLimit.end()) |
---|
| 1149 | { |
---|
| 1150 | highLim = pos2->second; |
---|
| 1151 | } |
---|
| 1152 | |
---|
| 1153 | if (k >= lowLim && k <= highLim) |
---|
| 1154 | { |
---|
| 1155 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
---|
| 1156 | pos = tableData.find(particleName); |
---|
| 1157 | |
---|
| 1158 | if (pos != tableData.end()) |
---|
| 1159 | { |
---|
| 1160 | G4DNACrossSectionDataSet* table = pos->second; |
---|
| 1161 | if (table != 0) |
---|
| 1162 | { |
---|
| 1163 | sigma = table->FindValue(k); |
---|
| 1164 | } |
---|
| 1165 | } |
---|
| 1166 | else |
---|
| 1167 | { |
---|
| 1168 | G4Exception("G4DNARuddIonisationExtendedModel::PartialCrossSection: attempting to calculate cross section for wrong particle"); |
---|
| 1169 | } |
---|
| 1170 | } |
---|
| 1171 | |
---|
| 1172 | return sigma; |
---|
| 1173 | } |
---|
| 1174 | |
---|
| 1175 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 1176 | |
---|
| 1177 | G4double G4DNARuddIonisationExtendedModel::Sum(G4double /* energy */, const G4String& /* particle */) |
---|
| 1178 | { |
---|
| 1179 | return 0; |
---|
| 1180 | } |
---|
| 1181 | |
---|