[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: G4DNASancheExcitationModel.cc,v 1.4 2010/11/11 22:32:22 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 | // Created by Z. Francis |
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| 31 | |
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| 32 | #include "G4DNASancheExcitationModel.hh" |
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| 33 | |
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| 34 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 35 | |
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| 36 | using namespace std; |
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| 37 | |
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| 38 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 39 | |
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| 40 | G4DNASancheExcitationModel::G4DNASancheExcitationModel(const G4ParticleDefinition*, |
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| 41 | const G4String& nam) |
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| 42 | :G4VEmModel(nam),isInitialised(false) |
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| 43 | { |
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| 44 | |
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| 45 | lowEnergyLimit = 2 * eV; |
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| 46 | highEnergyLimit = 100 * eV; |
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| 47 | SetLowEnergyLimit(lowEnergyLimit); |
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| 48 | SetHighEnergyLimit(highEnergyLimit); |
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| 49 | nLevels = 9; |
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| 50 | |
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| 51 | verboseLevel= 0; |
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| 52 | // Verbosity scale: |
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| 53 | // 0 = nothing |
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| 54 | // 1 = warning for energy non-conservation |
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| 55 | // 2 = details of energy budget |
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| 56 | // 3 = calculation of cross sections, file openings, sampling of atoms |
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| 57 | // 4 = entering in methods |
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| 58 | |
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| 59 | if (verboseLevel > 0) |
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| 60 | { |
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| 61 | G4cout << "Sanche Excitation model is constructed " << G4endl |
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| 62 | << "Energy range: " |
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| 63 | << lowEnergyLimit / eV << " eV - " |
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| 64 | << highEnergyLimit / eV << " eV" |
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| 65 | << G4endl; |
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| 66 | } |
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| 67 | |
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| 68 | } |
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| 69 | |
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| 70 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 71 | |
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| 72 | G4DNASancheExcitationModel::~G4DNASancheExcitationModel() |
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| 73 | {} |
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| 74 | |
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| 75 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 76 | |
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| 77 | void G4DNASancheExcitationModel::Initialise(const G4ParticleDefinition* /*particle*/, |
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| 78 | const G4DataVector& /*cuts*/) |
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| 79 | { |
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| 80 | |
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| 81 | |
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| 82 | if (verboseLevel > 3) |
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| 83 | G4cout << "Calling G4DNASancheExcitationModel::Initialise()" << G4endl; |
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| 84 | |
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| 85 | // Energy limits |
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| 86 | |
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| 87 | if (LowEnergyLimit() < lowEnergyLimit) |
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| 88 | { |
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| 89 | G4cout << "G4DNASancheExcitationModel: low energy limit increased from " << |
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| 90 | LowEnergyLimit()/eV << " eV to " << lowEnergyLimit/eV << " eV" << G4endl; |
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| 91 | SetLowEnergyLimit(lowEnergyLimit); |
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| 92 | } |
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| 93 | |
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| 94 | if (HighEnergyLimit() > highEnergyLimit) |
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| 95 | { |
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| 96 | G4cout << "G4DNASancheExcitationModel: high energy limit decreased from " << |
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| 97 | HighEnergyLimit()/eV << " eV to " << highEnergyLimit/eV << " eV" << G4endl; |
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| 98 | SetHighEnergyLimit(highEnergyLimit); |
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| 99 | } |
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| 100 | |
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| 101 | // |
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| 102 | |
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| 103 | if (verboseLevel > 0) |
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| 104 | |
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| 105 | G4cout << "Sanche Excitation model is initialized " << G4endl |
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| 106 | << "Energy range: " |
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| 107 | << LowEnergyLimit() / eV << " eV - " |
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| 108 | << HighEnergyLimit() / eV << " eV" |
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| 109 | << G4endl; |
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| 110 | |
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| 111 | if(!isInitialised) |
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| 112 | { |
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| 113 | isInitialised = true; |
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| 114 | |
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| 115 | if(pParticleChange) |
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| 116 | fParticleChangeForGamma = reinterpret_cast<G4ParticleChangeForGamma*>(pParticleChange); |
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| 117 | else |
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| 118 | fParticleChangeForGamma = new G4ParticleChangeForGamma(); |
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| 119 | } |
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| 120 | |
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| 121 | // InitialiseElementSelectors(particle,cuts); |
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| 122 | |
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| 123 | char *path = getenv("G4LEDATA"); |
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| 124 | std::ostringstream eFullFileName; |
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| 125 | eFullFileName << path << "/dna/sigma_excitationvib_e_sanche.dat"; |
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| 126 | std::ifstream input(eFullFileName.str().c_str()); |
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| 127 | |
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| 128 | if (!input) |
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| 129 | { |
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| 130 | G4Exception("G4DNASancheExcitationModel:::ERROR OPENING XS DATA FILE"); |
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| 131 | } |
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| 132 | |
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| 133 | while(!input.eof()) |
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| 134 | { |
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| 135 | double t; |
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| 136 | input>>t; |
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| 137 | tdummyVec.push_back(t); |
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| 138 | input>>map1[t][0]>>map1[t][1]>>map1[t][2]>>map1[t][3]>>map1[t][4]>>map1[t][5]>>map1[t][6]>>map1[t][7]>>map1[t][8]; |
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| 139 | //G4cout<<t<<" "<<map1[t][0]<<map1[t][1]<<map1[t][2]<<map1[t][3]<<map1[t][4]<<map1[t][5]<<map1[t][6]<<map1[t][7]<<map1[t][8]<<G4endl; |
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| 140 | } |
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| 141 | |
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| 142 | } |
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| 143 | |
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| 144 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 145 | |
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| 146 | G4double G4DNASancheExcitationModel::CrossSectionPerVolume(const G4Material* material, |
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| 147 | const G4ParticleDefinition* particleDefinition, |
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| 148 | G4double ekin, |
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| 149 | G4double, |
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| 150 | G4double) |
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| 151 | { |
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| 152 | if (verboseLevel > 3) |
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| 153 | G4cout << "Calling CrossSectionPerVolume() of G4DNASancheExcitationModel" << G4endl; |
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| 154 | |
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| 155 | // Calculate total cross section for model |
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| 156 | |
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| 157 | G4double sigma=0; |
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| 158 | |
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| 159 | if (material->GetName() == "G4_WATER") |
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| 160 | { |
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| 161 | |
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| 162 | if (particleDefinition == G4Electron::ElectronDefinition()) |
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| 163 | { |
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| 164 | if (ekin >= lowEnergyLimit && ekin < highEnergyLimit) |
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| 165 | { |
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| 166 | sigma = Sum(ekin); |
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| 167 | } |
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| 168 | } |
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| 169 | |
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| 170 | if (verboseLevel > 3) |
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| 171 | { |
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| 172 | G4cout << "---> Kinetic energy(eV)=" << ekin/eV << G4endl; |
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| 173 | G4cout << " - Cross section per water molecule (cm^2)=" << sigma/cm/cm << G4endl; |
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| 174 | G4cout << " - Cross section per water molecule (cm^-1)=" << sigma*material->GetAtomicNumDensityVector()[1]/(1./cm) << G4endl; |
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| 175 | } |
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| 176 | |
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| 177 | } // if water |
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| 178 | |
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| 179 | |
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| 180 | return sigma*2*material->GetAtomicNumDensityVector()[1]; |
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| 181 | // see papers for factor 2 description |
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| 182 | |
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| 183 | } |
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| 184 | |
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| 185 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 186 | |
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| 187 | void G4DNASancheExcitationModel::SampleSecondaries(std::vector<G4DynamicParticle*>*, |
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| 188 | const G4MaterialCutsCouple*, |
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| 189 | const G4DynamicParticle* aDynamicElectron, |
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| 190 | G4double, |
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| 191 | G4double) |
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| 192 | { |
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| 193 | |
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| 194 | if (verboseLevel > 3) |
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| 195 | G4cout << "Calling SampleSecondaries() of G4DNASancheExcitationModel" << G4endl; |
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| 196 | |
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| 197 | G4double electronEnergy0 = aDynamicElectron->GetKineticEnergy(); |
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| 198 | G4int level = RandomSelect(electronEnergy0); |
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| 199 | G4double excitationEnergy = VibrationEnergy(level); // levels go from 0 to 8 |
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| 200 | G4double newEnergy = electronEnergy0 - excitationEnergy; |
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| 201 | |
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| 202 | /* |
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| 203 | if (electronEnergy0 < highEnergyLimit) |
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| 204 | { |
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| 205 | if (newEnergy >= lowEnergyLimit) |
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| 206 | { |
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| 207 | fParticleChangeForGamma->ProposeMomentumDirection(aDynamicElectron->GetMomentumDirection()); |
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| 208 | fParticleChangeForGamma->SetProposedKineticEnergy(newEnergy); |
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| 209 | fParticleChangeForGamma->ProposeLocalEnergyDeposit(excitationEnergy); |
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| 210 | } |
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| 211 | |
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| 212 | else |
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| 213 | { |
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| 214 | fParticleChangeForGamma->ProposeTrackStatus(fStopAndKill); |
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| 215 | fParticleChangeForGamma->ProposeLocalEnergyDeposit(electronEnergy0); |
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| 216 | } |
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| 217 | } |
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| 218 | */ |
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| 219 | |
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| 220 | if (electronEnergy0 < highEnergyLimit && newEnergy>0.) |
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| 221 | { |
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| 222 | fParticleChangeForGamma->ProposeMomentumDirection(aDynamicElectron->GetMomentumDirection()); |
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| 223 | fParticleChangeForGamma->SetProposedKineticEnergy(newEnergy); |
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| 224 | fParticleChangeForGamma->ProposeLocalEnergyDeposit(excitationEnergy); |
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| 225 | } |
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| 226 | |
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| 227 | // |
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| 228 | } |
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| 229 | |
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| 230 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 231 | |
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| 232 | G4double G4DNASancheExcitationModel::PartialCrossSection(G4double t, G4int level) |
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| 233 | { |
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| 234 | std::vector<double>::iterator t2 = std::upper_bound(tdummyVec.begin(),tdummyVec.end(), t/eV); |
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| 235 | std::vector<double>::iterator t1 = t2-1; |
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| 236 | |
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| 237 | double sigma = LinInterpolate((*t1), (*t2), t/eV, map1[*t1][level], map1[*t2][level]); |
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| 238 | sigma*=1e-16*cm*cm; |
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| 239 | if(sigma==0.)sigma=1e-30; |
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| 240 | return (sigma); |
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| 241 | } |
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| 242 | |
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| 243 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 244 | |
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| 245 | G4double G4DNASancheExcitationModel::VibrationEnergy(G4int level) |
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| 246 | { |
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| 247 | G4double energies[9] = {0.01, 0.024, 0.061, 0.092, 0.204, 0.417, 0.460, 0.500, 0.835}; |
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| 248 | return(energies[level]*eV); |
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| 249 | } |
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| 250 | |
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| 251 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 252 | |
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| 253 | G4int G4DNASancheExcitationModel::RandomSelect(G4double k) |
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| 254 | { |
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| 255 | |
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| 256 | // Level Selection Counting can be done here ! |
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| 257 | |
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| 258 | G4int i = nLevels; |
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| 259 | G4double value = 0.; |
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| 260 | std::deque<double> values; |
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| 261 | |
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| 262 | while (i > 0) |
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| 263 | { |
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| 264 | i--; |
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| 265 | G4double partial = PartialCrossSection(k,i); |
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| 266 | values.push_front(partial); |
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| 267 | value += partial; |
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| 268 | } |
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| 269 | |
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| 270 | value *= G4UniformRand(); |
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| 271 | |
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| 272 | i = nLevels; |
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| 273 | |
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| 274 | while (i > 0) |
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| 275 | { |
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| 276 | i--; |
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| 277 | if (values[i] > value) |
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| 278 | { |
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| 279 | //outcount<<i<<" "<<VibrationEnergy(i)<<G4endl; |
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| 280 | return i; |
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| 281 | } |
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| 282 | value -= values[i]; |
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| 283 | } |
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| 284 | |
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| 285 | //outcount<<0<<" "<<VibrationEnergy(0)<<G4endl; |
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| 286 | |
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| 287 | return 0; |
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| 288 | } |
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| 289 | |
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| 290 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 291 | |
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| 292 | G4double G4DNASancheExcitationModel::Sum(G4double k) |
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| 293 | { |
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| 294 | G4double totalCrossSection = 0.; |
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| 295 | |
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| 296 | for (G4int i=0; i<nLevels; i++) |
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| 297 | { |
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| 298 | totalCrossSection += PartialCrossSection(k,i); |
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| 299 | } |
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| 300 | return totalCrossSection; |
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| 301 | } |
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| 302 | |
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| 303 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 304 | |
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| 305 | G4double G4DNASancheExcitationModel::LinInterpolate(G4double e1, |
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| 306 | G4double e2, |
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| 307 | G4double e, |
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| 308 | G4double xs1, |
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| 309 | G4double xs2) |
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| 310 | { |
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| 311 | G4double a = (xs2 - xs1) / (e2 - e1); |
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| 312 | G4double b = xs2 - a*e2; |
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| 313 | G4double value = a*e + b; |
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| 314 | // G4cout<<"interP >> "<<e1<<" "<<e2<<" "<<e<<" "<<xs1<<" "<<xs2<<" "<<a<<" "<<b<<" "<<value<<G4endl; |
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| 315 | |
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| 316 | return value; |
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| 317 | } |
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| 318 | |
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