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: G4CrossSectionElasticChampion.cc,v 1.4 2008/12/05 11:58:16 sincerti Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-02 $ |
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28 | // ------------------------------------------------------------------- |
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29 | |
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30 | #include "G4CrossSectionElasticChampion.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 | G4CrossSectionElasticChampion::G4CrossSectionElasticChampion() |
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35 | { |
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36 | lowEnergyLimit = 0.*eV; |
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37 | highEnergyLimit = 10. * keV; |
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38 | |
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39 | G4double scaleFactor = 1e-16*cm*cm; |
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40 | |
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41 | G4String fileElectron("dna/sigma_elastic_e_champion"); |
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42 | |
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43 | G4ParticleDefinition* electronDef = G4Electron::ElectronDefinition(); |
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44 | G4String electron; |
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45 | |
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46 | if (electronDef != 0) |
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47 | { |
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48 | electron = electronDef->GetParticleName(); |
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49 | tableFile[electron] = fileElectron; |
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50 | |
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51 | G4DNACrossSectionDataSet* tableE = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, eV,scaleFactor ); |
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52 | tableE->LoadData(fileElectron); |
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53 | tableData[electron] = tableE; |
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54 | } |
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55 | else |
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56 | { |
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57 | G4Exception("G4CrossSectionElasticChampion constructor: electron is not defined"); |
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58 | } |
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59 | } |
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60 | |
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61 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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62 | |
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63 | G4CrossSectionElasticChampion::~G4CrossSectionElasticChampion() |
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64 | { |
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65 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
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66 | for (pos = tableData.begin(); pos != tableData.end(); ++pos) |
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67 | { |
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68 | G4DNACrossSectionDataSet* table = pos->second; |
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69 | delete table; |
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70 | } |
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71 | } |
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72 | |
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73 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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74 | |
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75 | G4double G4CrossSectionElasticChampion::CrossSection(const G4Track& track ) |
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76 | { |
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77 | const G4DynamicParticle* particle = track.GetDynamicParticle(); |
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78 | G4double k = particle->GetKineticEnergy(); |
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79 | |
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80 | G4double sigma = 0.; |
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81 | |
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82 | const G4String& particleName = particle->GetDefinition()->GetParticleName(); |
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83 | |
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84 | if (k >= lowEnergyLimit && k < highEnergyLimit) |
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85 | { |
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86 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
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87 | pos = tableData.find(particleName); |
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88 | |
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89 | if (pos != tableData.end()) |
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90 | { |
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91 | G4DNACrossSectionDataSet* table = pos->second; |
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92 | if (table != 0) |
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93 | { |
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94 | sigma = table->FindValue(k); |
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95 | } |
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96 | } |
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97 | else |
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98 | { |
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99 | G4Exception("G4CrossSectionElasticChampion::CrossSection: attempting to calculate cross section for wrong particle"); |
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100 | } |
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101 | } |
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102 | return sigma; |
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103 | } |
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