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 | // |
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27 | // $Id: G4ShellVacancy.cc |
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28 | // GEANT4 tag $Name: |
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29 | // |
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30 | // Author: Elena Guardincerri (Elena.Guardincerri@ge.infn.it) |
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31 | // |
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32 | // History: |
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33 | // ----------- |
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34 | // 21 Sept 2001 Elena Guardincerri Created |
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35 | // 25 Mar 2002 V.Ivanchenko Change AverageNOfIonisations int->double |
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36 | // |
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37 | // ------------------------------------------------------------------- |
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38 | |
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39 | #include "G4ShellVacancy.hh" |
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40 | #include "G4MaterialCutsCouple.hh" |
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41 | #include "G4Material.hh" |
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42 | #include "G4Poisson.hh" |
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43 | #include "G4VEMDataSet.hh" |
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44 | |
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45 | G4ShellVacancy::G4ShellVacancy() |
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46 | |
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47 | { } |
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48 | |
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49 | G4ShellVacancy::~G4ShellVacancy() |
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50 | |
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51 | { |
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52 | /* |
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53 | G4int size = xsis.size(); |
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54 | for (G4int k =0; k<size; k++) |
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55 | { |
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56 | delete xsis[k]; |
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57 | xsis[k] = 0; |
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58 | } |
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59 | */ |
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60 | } |
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61 | |
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62 | void G4ShellVacancy::AddXsiTable(G4VEMDataSet* p) |
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63 | { |
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64 | xsis.push_back(p); |
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65 | } |
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66 | |
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67 | std::vector<G4int> G4ShellVacancy::GenerateNumberOfIonisations(const G4MaterialCutsCouple* |
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68 | couple, |
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69 | G4double |
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70 | incidentEnergy, |
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71 | G4double eLoss) const |
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72 | |
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73 | { |
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74 | std::vector<G4int> numberOfIonisations; |
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75 | const G4Material* material = couple->GetMaterial(); |
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76 | G4int numberOfElements = material->GetNumberOfElements(); |
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77 | |
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78 | for (G4int i = 0; i<numberOfElements; i++) |
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79 | { |
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80 | G4double averageNumberOfIonisations = AverageNOfIonisations(couple, |
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81 | i, |
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82 | incidentEnergy, |
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83 | eLoss); |
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84 | G4int ionisations = 0; |
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85 | if(averageNumberOfIonisations > 0.0) { |
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86 | ionisations = (G4int) G4Poisson(averageNumberOfIonisations); |
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87 | } |
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88 | |
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89 | numberOfIonisations.push_back(ionisations); |
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90 | |
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91 | } |
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92 | return numberOfIonisations; |
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93 | |
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94 | } |
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95 | |
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96 | G4double G4ShellVacancy::AverageNOfIonisations(const G4MaterialCutsCouple* couple, |
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97 | G4int index, |
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98 | G4double energy, |
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99 | G4double eLoss) const |
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100 | |
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101 | { |
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102 | // G4int indexOfElementInMaterial= -1; |
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103 | |
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104 | G4double averageEnergy = energy - eLoss/2.; |
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105 | |
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106 | size_t indexInMaterialTable = couple->GetIndex(); |
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107 | |
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108 | G4VEMDataSet* aSetOfXsi = xsis[indexInMaterialTable]; |
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109 | |
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110 | G4double aXsi = aSetOfXsi->FindValue(averageEnergy,index); |
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111 | |
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112 | return aXsi * eLoss; |
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113 | } |
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