[1058] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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[1347] | 26 | // $Id: G4DNAChampionElasticModel.cc,v 1.16 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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[1058] | 28 | // |
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| 29 | |
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| 30 | #include "G4DNAChampionElasticModel.hh" |
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| 31 | |
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| 32 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 33 | |
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| 34 | using namespace std; |
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| 35 | |
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| 36 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 37 | |
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| 38 | G4DNAChampionElasticModel::G4DNAChampionElasticModel(const G4ParticleDefinition*, |
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| 39 | const G4String& nam) |
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| 40 | :G4VEmModel(nam),isInitialised(false) |
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| 41 | { |
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| 42 | |
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[1347] | 43 | killBelowEnergy = 4*eV; |
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[1058] | 44 | lowEnergyLimit = 0 * eV; |
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[1340] | 45 | highEnergyLimit = 1. * MeV; |
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[1058] | 46 | SetLowEnergyLimit(lowEnergyLimit); |
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| 47 | SetHighEnergyLimit(highEnergyLimit); |
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| 48 | |
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| 49 | verboseLevel= 0; |
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| 50 | // Verbosity scale: |
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| 51 | // 0 = nothing |
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| 52 | // 1 = warning for energy non-conservation |
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| 53 | // 2 = details of energy budget |
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| 54 | // 3 = calculation of cross sections, file openings, sampling of atoms |
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| 55 | // 4 = entering in methods |
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| 56 | |
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[1192] | 57 | if( verboseLevel>0 ) |
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| 58 | { |
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| 59 | G4cout << "Champion Elastic model is constructed " << G4endl |
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| 60 | << "Energy range: " |
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| 61 | << lowEnergyLimit / eV << " eV - " |
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| 62 | << highEnergyLimit / MeV << " MeV" |
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| 63 | << G4endl; |
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| 64 | } |
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[1347] | 65 | |
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[1058] | 66 | } |
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| 67 | |
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| 68 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 69 | |
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| 70 | G4DNAChampionElasticModel::~G4DNAChampionElasticModel() |
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| 71 | { |
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| 72 | // For total cross section |
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| 73 | |
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| 74 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
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| 75 | for (pos = tableData.begin(); pos != tableData.end(); ++pos) |
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| 76 | { |
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| 77 | G4DNACrossSectionDataSet* table = pos->second; |
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| 78 | delete table; |
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| 79 | } |
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| 80 | |
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| 81 | // For final state |
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| 82 | |
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| 83 | eVecm.clear(); |
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| 84 | |
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| 85 | } |
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| 86 | |
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| 87 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 88 | |
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| 89 | void G4DNAChampionElasticModel::Initialise(const G4ParticleDefinition* /*particle*/, |
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| 90 | const G4DataVector& /*cuts*/) |
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| 91 | { |
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| 92 | |
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| 93 | if (verboseLevel > 3) |
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| 94 | G4cout << "Calling G4DNAChampionElasticModel::Initialise()" << G4endl; |
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| 95 | |
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| 96 | // Energy limits |
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| 97 | |
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| 98 | if (LowEnergyLimit() < lowEnergyLimit) |
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| 99 | { |
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| 100 | G4cout << "G4DNAChampionElasticModel: low energy limit increased from " << |
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| 101 | LowEnergyLimit()/eV << " eV to " << lowEnergyLimit/eV << " eV" << G4endl; |
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| 102 | SetLowEnergyLimit(lowEnergyLimit); |
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| 103 | } |
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| 104 | |
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| 105 | if (HighEnergyLimit() > highEnergyLimit) |
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| 106 | { |
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| 107 | G4cout << "G4DNAChampionElasticModel: high energy limit decreased from " << |
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| 108 | HighEnergyLimit()/MeV << " MeV to " << highEnergyLimit/MeV << " MeV" << G4endl; |
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| 109 | SetHighEnergyLimit(highEnergyLimit); |
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| 110 | } |
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| 111 | |
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| 112 | // Reading of data files |
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| 113 | |
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| 114 | G4double scaleFactor = 1e-16*cm*cm; |
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| 115 | |
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| 116 | G4String fileElectron("dna/sigma_elastic_e_champion"); |
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| 117 | |
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| 118 | G4ParticleDefinition* electronDef = G4Electron::ElectronDefinition(); |
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| 119 | G4String electron; |
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| 120 | |
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| 121 | if (electronDef != 0) |
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| 122 | { |
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| 123 | // For total cross section |
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| 124 | |
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| 125 | electron = electronDef->GetParticleName(); |
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| 126 | |
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| 127 | tableFile[electron] = fileElectron; |
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| 128 | |
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| 129 | G4DNACrossSectionDataSet* tableE = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, eV,scaleFactor ); |
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| 130 | tableE->LoadData(fileElectron); |
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| 131 | tableData[electron] = tableE; |
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| 132 | |
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| 133 | // For final state |
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[1315] | 134 | |
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[1058] | 135 | char *path = getenv("G4LEDATA"); |
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| 136 | |
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| 137 | if (!path) |
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| 138 | G4Exception("G4FinalStateElasticChampion::Initialise: G4LEDATA environment variable not set"); |
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| 139 | |
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| 140 | std::ostringstream eFullFileName; |
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[1340] | 141 | eFullFileName << path << "/dna/sigmadiff_cumulatedshort_elastic_e_champion.dat"; |
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[1058] | 142 | std::ifstream eDiffCrossSection(eFullFileName.str().c_str()); |
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| 143 | |
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| 144 | if (!eDiffCrossSection) G4Exception("G4DNAChampionElasticModel::Initialise: error opening electron DATA FILE"); |
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| 145 | |
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| 146 | eTdummyVec.push_back(0.); |
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| 147 | |
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| 148 | while(!eDiffCrossSection.eof()) |
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| 149 | { |
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| 150 | double tDummy; |
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| 151 | double eDummy; |
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| 152 | eDiffCrossSection>>tDummy>>eDummy; |
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[1315] | 153 | |
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[1058] | 154 | // SI : mandatory eVecm initialization |
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[1315] | 155 | |
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[1058] | 156 | if (tDummy != eTdummyVec.back()) |
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| 157 | { |
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| 158 | eTdummyVec.push_back(tDummy); |
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| 159 | eVecm[tDummy].push_back(0.); |
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| 160 | } |
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| 161 | |
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| 162 | eDiffCrossSection>>eDiffCrossSectionData[tDummy][eDummy]; |
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| 163 | |
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| 164 | if (eDummy != eVecm[tDummy].back()) eVecm[tDummy].push_back(eDummy); |
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[1315] | 165 | |
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[1058] | 166 | } |
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| 167 | |
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| 168 | // End final state |
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| 169 | |
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| 170 | } |
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| 171 | else G4Exception("G4DNAChampionElasticModel::Initialise: electron is not defined"); |
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| 172 | |
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| 173 | if (verboseLevel > 2) |
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| 174 | G4cout << "Loaded cross section files for Champion Elastic model" << G4endl; |
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| 175 | |
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[1192] | 176 | if( verboseLevel>0 ) |
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| 177 | { |
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| 178 | G4cout << "Champion Elastic model is initialized " << G4endl |
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| 179 | << "Energy range: " |
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| 180 | << LowEnergyLimit() / eV << " eV - " |
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| 181 | << HighEnergyLimit() / MeV << " MeV" |
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| 182 | << G4endl; |
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| 183 | } |
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[1058] | 184 | |
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| 185 | if(!isInitialised) |
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| 186 | { |
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| 187 | isInitialised = true; |
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| 188 | |
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| 189 | if(pParticleChange) |
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| 190 | fParticleChangeForGamma = reinterpret_cast<G4ParticleChangeForGamma*>(pParticleChange); |
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| 191 | else |
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| 192 | fParticleChangeForGamma = new G4ParticleChangeForGamma(); |
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| 193 | } |
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| 194 | |
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| 195 | // InitialiseElementSelectors(particle,cuts); |
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| 196 | |
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| 197 | } |
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| 198 | |
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| 199 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 200 | |
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[1315] | 201 | G4double G4DNAChampionElasticModel::CrossSectionPerVolume(const G4Material* material, |
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[1058] | 202 | const G4ParticleDefinition* p, |
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| 203 | G4double ekin, |
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| 204 | G4double, |
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| 205 | G4double) |
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| 206 | { |
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| 207 | if (verboseLevel > 3) |
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| 208 | G4cout << "Calling CrossSectionPerVolume() of G4DNAChampionElasticModel" << G4endl; |
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| 209 | |
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| 210 | // Calculate total cross section for model |
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| 211 | |
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| 212 | G4double sigma=0; |
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| 213 | |
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[1315] | 214 | if (material->GetName() == "G4_WATER") |
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[1058] | 215 | { |
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| 216 | const G4String& particleName = p->GetParticleName(); |
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| 217 | |
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| 218 | if (ekin < highEnergyLimit) |
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| 219 | { |
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| 220 | //SI : XS must not be zero otherwise sampling of secondaries method ignored |
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[1347] | 221 | if (ekin < killBelowEnergy) return DBL_MAX; |
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[1058] | 222 | // |
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| 223 | |
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| 224 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
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| 225 | pos = tableData.find(particleName); |
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| 226 | |
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| 227 | if (pos != tableData.end()) |
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| 228 | { |
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| 229 | G4DNACrossSectionDataSet* table = pos->second; |
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| 230 | if (table != 0) |
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| 231 | { |
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| 232 | sigma = table->FindValue(ekin); |
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| 233 | } |
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| 234 | } |
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| 235 | else |
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| 236 | { |
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| 237 | G4Exception("G4DNAChampionElasticModel::ComputeCrossSectionPerVolume: attempting to calculate cross section for wrong particle"); |
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| 238 | } |
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| 239 | } |
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| 240 | |
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| 241 | if (verboseLevel > 3) |
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| 242 | { |
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| 243 | G4cout << "---> Kinetic energy(eV)=" << ekin/eV << G4endl; |
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| 244 | G4cout << " - Cross section per water molecule (cm^2)=" << sigma/cm/cm << G4endl; |
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[1315] | 245 | G4cout << " - Cross section per water molecule (cm^-1)=" << sigma*material->GetAtomicNumDensityVector()[1]/(1./cm) << G4endl; |
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[1058] | 246 | } |
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| 247 | |
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[1315] | 248 | } |
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[1058] | 249 | |
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[1315] | 250 | return sigma*material->GetAtomicNumDensityVector()[1]; |
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[1058] | 251 | } |
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| 252 | |
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| 253 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 254 | |
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| 255 | void G4DNAChampionElasticModel::SampleSecondaries(std::vector<G4DynamicParticle*>* /*fvect*/, |
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| 256 | const G4MaterialCutsCouple* /*couple*/, |
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| 257 | const G4DynamicParticle* aDynamicElectron, |
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| 258 | G4double, |
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| 259 | G4double) |
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| 260 | { |
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| 261 | |
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| 262 | if (verboseLevel > 3) |
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| 263 | G4cout << "Calling SampleSecondaries() of G4DNAChampionElasticModel" << G4endl; |
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| 264 | |
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| 265 | G4double electronEnergy0 = aDynamicElectron->GetKineticEnergy(); |
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| 266 | |
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| 267 | if (electronEnergy0 < killBelowEnergy) |
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| 268 | { |
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| 269 | fParticleChangeForGamma->ProposeTrackStatus(fStopAndKill); |
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| 270 | fParticleChangeForGamma->ProposeLocalEnergyDeposit(electronEnergy0); |
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| 271 | return ; |
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| 272 | } |
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| 273 | |
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| 274 | if (electronEnergy0>= killBelowEnergy && electronEnergy0 < highEnergyLimit) |
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| 275 | { |
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[1315] | 276 | |
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[1058] | 277 | G4double cosTheta = RandomizeCosTheta(electronEnergy0); |
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| 278 | |
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| 279 | G4double phi = 2. * pi * G4UniformRand(); |
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| 280 | |
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| 281 | G4ThreeVector zVers = aDynamicElectron->GetMomentumDirection(); |
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| 282 | G4ThreeVector xVers = zVers.orthogonal(); |
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| 283 | G4ThreeVector yVers = zVers.cross(xVers); |
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| 284 | |
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| 285 | G4double xDir = std::sqrt(1. - cosTheta*cosTheta); |
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| 286 | G4double yDir = xDir; |
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| 287 | xDir *= std::cos(phi); |
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| 288 | yDir *= std::sin(phi); |
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| 289 | |
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| 290 | G4ThreeVector zPrimeVers((xDir*xVers + yDir*yVers + cosTheta*zVers)); |
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| 291 | |
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| 292 | fParticleChangeForGamma->ProposeMomentumDirection(zPrimeVers.unit()) ; |
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| 293 | |
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| 294 | fParticleChangeForGamma->SetProposedKineticEnergy(electronEnergy0); |
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| 295 | } |
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| 296 | |
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| 297 | } |
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| 298 | |
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| 299 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 300 | |
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[1315] | 301 | G4double G4DNAChampionElasticModel::Theta |
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| 302 | (G4ParticleDefinition * particleDefinition, G4double k, G4double integrDiff) |
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[1058] | 303 | { |
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[1315] | 304 | G4double theta = 0.; |
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[1058] | 305 | G4double valueT1 = 0; |
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| 306 | G4double valueT2 = 0; |
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| 307 | G4double valueE21 = 0; |
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| 308 | G4double valueE22 = 0; |
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| 309 | G4double valueE12 = 0; |
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| 310 | G4double valueE11 = 0; |
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| 311 | G4double xs11 = 0; |
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| 312 | G4double xs12 = 0; |
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| 313 | G4double xs21 = 0; |
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| 314 | G4double xs22 = 0; |
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| 315 | |
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| 316 | if (particleDefinition == G4Electron::ElectronDefinition()) |
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| 317 | { |
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| 318 | std::vector<double>::iterator t2 = std::upper_bound(eTdummyVec.begin(),eTdummyVec.end(), k); |
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| 319 | std::vector<double>::iterator t1 = t2-1; |
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| 320 | |
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[1315] | 321 | std::vector<double>::iterator e12 = std::upper_bound(eVecm[(*t1)].begin(),eVecm[(*t1)].end(), integrDiff); |
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[1058] | 322 | std::vector<double>::iterator e11 = e12-1; |
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| 323 | |
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[1315] | 324 | std::vector<double>::iterator e22 = std::upper_bound(eVecm[(*t2)].begin(),eVecm[(*t2)].end(), integrDiff); |
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[1058] | 325 | std::vector<double>::iterator e21 = e22-1; |
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| 326 | |
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| 327 | valueT1 =*t1; |
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| 328 | valueT2 =*t2; |
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| 329 | valueE21 =*e21; |
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| 330 | valueE22 =*e22; |
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| 331 | valueE12 =*e12; |
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| 332 | valueE11 =*e11; |
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| 333 | |
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| 334 | xs11 = eDiffCrossSectionData[valueT1][valueE11]; |
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| 335 | xs12 = eDiffCrossSectionData[valueT1][valueE12]; |
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| 336 | xs21 = eDiffCrossSectionData[valueT2][valueE21]; |
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| 337 | xs22 = eDiffCrossSectionData[valueT2][valueE22]; |
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[1315] | 338 | } |
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[1058] | 339 | |
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[1315] | 340 | if (xs11==0 && xs12==0 && xs21==0 && xs22==0) return (0.); |
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| 341 | |
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| 342 | theta = QuadInterpolator ( valueE11, valueE12, |
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[1058] | 343 | valueE21, valueE22, |
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| 344 | xs11, xs12, |
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| 345 | xs21, xs22, |
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| 346 | valueT1, valueT2, |
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[1315] | 347 | k, integrDiff ); |
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| 348 | |
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| 349 | return theta; |
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[1058] | 350 | } |
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| 351 | |
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| 352 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 353 | |
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| 354 | G4double G4DNAChampionElasticModel::LinLogInterpolate(G4double e1, |
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| 355 | G4double e2, |
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| 356 | G4double e, |
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| 357 | G4double xs1, |
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| 358 | G4double xs2) |
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| 359 | { |
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| 360 | G4double d1 = std::log(xs1); |
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| 361 | G4double d2 = std::log(xs2); |
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| 362 | G4double value = std::exp(d1 + (d2 - d1)*(e - e1)/ (e2 - e1)); |
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| 363 | return value; |
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| 364 | } |
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| 365 | |
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| 366 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 367 | |
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[1315] | 368 | G4double G4DNAChampionElasticModel::LinLinInterpolate(G4double e1, |
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| 369 | G4double e2, |
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| 370 | G4double e, |
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| 371 | G4double xs1, |
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| 372 | G4double xs2) |
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| 373 | { |
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| 374 | G4double d1 = xs1; |
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| 375 | G4double d2 = xs2; |
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| 376 | G4double value = (d1 + (d2 - d1)*(e - e1)/ (e2 - e1)); |
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| 377 | return value; |
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| 378 | } |
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| 379 | |
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| 380 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 381 | |
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[1058] | 382 | G4double G4DNAChampionElasticModel::LogLogInterpolate(G4double e1, |
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| 383 | G4double e2, |
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| 384 | G4double e, |
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| 385 | G4double xs1, |
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| 386 | G4double xs2) |
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| 387 | { |
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| 388 | G4double a = (std::log10(xs2)-std::log10(xs1)) / (std::log10(e2)-std::log10(e1)); |
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| 389 | G4double b = std::log10(xs2) - a*std::log10(e2); |
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| 390 | G4double sigma = a*std::log10(e) + b; |
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| 391 | G4double value = (std::pow(10.,sigma)); |
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| 392 | return value; |
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| 393 | } |
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| 394 | |
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| 395 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 396 | |
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[1315] | 397 | |
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[1058] | 398 | G4double G4DNAChampionElasticModel::QuadInterpolator(G4double e11, G4double e12, |
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| 399 | G4double e21, G4double e22, |
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| 400 | G4double xs11, G4double xs12, |
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| 401 | G4double xs21, G4double xs22, |
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| 402 | G4double t1, G4double t2, |
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| 403 | G4double t, G4double e) |
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| 404 | { |
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[1315] | 405 | // Log-Log |
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[1058] | 406 | /* |
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| 407 | G4double interpolatedvalue1 = LogLogInterpolate(e11, e12, e, xs11, xs12); |
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| 408 | G4double interpolatedvalue2 = LogLogInterpolate(e21, e22, e, xs21, xs22); |
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| 409 | G4double value = LogLogInterpolate(t1, t2, t, interpolatedvalue1, interpolatedvalue2); |
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| 410 | |
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[1315] | 411 | |
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| 412 | // Lin-Log |
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[1058] | 413 | G4double interpolatedvalue1 = LinLogInterpolate(e11, e12, e, xs11, xs12); |
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| 414 | G4double interpolatedvalue2 = LinLogInterpolate(e21, e22, e, xs21, xs22); |
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| 415 | G4double value = LinLogInterpolate(t1, t2, t, interpolatedvalue1, interpolatedvalue2); |
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[1315] | 416 | */ |
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| 417 | |
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| 418 | // Lin-Lin |
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| 419 | G4double interpolatedvalue1 = LinLinInterpolate(e11, e12, e, xs11, xs12); |
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| 420 | G4double interpolatedvalue2 = LinLinInterpolate(e21, e22, e, xs21, xs22); |
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| 421 | G4double value = LinLinInterpolate(t1, t2, t, interpolatedvalue1, interpolatedvalue2); |
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| 422 | |
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[1058] | 423 | return value; |
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| 424 | } |
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| 425 | |
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| 426 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 427 | |
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| 428 | G4double G4DNAChampionElasticModel::RandomizeCosTheta(G4double k) |
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| 429 | { |
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| 430 | |
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[1315] | 431 | G4double integrdiff=0; |
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| 432 | G4double uniformRand=G4UniformRand(); |
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| 433 | integrdiff = uniformRand; |
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| 434 | |
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| 435 | G4double theta=0.; |
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| 436 | G4double cosTheta=0.; |
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| 437 | theta = Theta(G4Electron::ElectronDefinition(),k/eV,integrdiff); |
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[1058] | 438 | |
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[1315] | 439 | cosTheta= std::cos(theta*pi/180); |
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[1058] | 440 | |
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| 441 | return cosTheta; |
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| 442 | } |
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