| 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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