[819] | 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: G4CrossSectionIonisationBornElectron.cc,v 1.2 2007/11/08 18:51:34 pia Exp $ |
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[1347] | 28 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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[819] | 29 | // |
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| 30 | // Contact Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch) |
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| 31 | // |
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| 32 | // Reference: TNS Geant4-DNA paper |
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| 33 | // Reference for implementation model: NIM. 155, pp. 145-156, 1978 |
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| 34 | |
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| 35 | // History: |
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| 36 | // ----------- |
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| 37 | // Date Name Modification |
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| 38 | // 28 Apr 2007 M.G. Pia Created in compliance with design described in TNS paper |
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| 39 | // |
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| 40 | // ------------------------------------------------------------------- |
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| 41 | |
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| 42 | // Class description: |
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| 43 | // Geant4-DNA Cross total cross section for electron elastic scattering in water |
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| 44 | // Reference: TNS Geant4-DNA paper |
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| 45 | // S. Chauvie et al., Geant4 physics processes for microdosimetry simulation: |
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| 46 | // design foundation and implementation of the first set of models, |
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| 47 | // IEEE Trans. Nucl. Sci., vol. 54, no. 6, Dec. 2007. |
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| 48 | // Further documentation available from http://www.ge.infn.it/geant4/dna |
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| 49 | |
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| 50 | // ------------------------------------------------------------------- |
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| 51 | |
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| 52 | |
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| 53 | #include "G4CrossSectionIonisationBornElectron.hh" |
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| 54 | #include "G4Track.hh" |
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| 55 | #include "G4DynamicParticle.hh" |
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| 56 | #include "G4ParticleDefinition.hh" |
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| 57 | #include "G4Electron.hh" |
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| 58 | #include "G4LogLogInterpolation.hh" |
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| 59 | |
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| 60 | #include "Randomize.hh" |
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| 61 | |
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| 62 | G4CrossSectionIonisationBornElectron::G4CrossSectionIonisationBornElectron() |
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| 63 | { |
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| 64 | |
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| 65 | // ---- MGP ---- Limits to be checked: current values are just temporary for testing purpose |
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| 66 | lowEnergyLimit = 7.4 * eV; |
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| 67 | highEnergyLimit = 10 * keV; |
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| 68 | |
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| 69 | table = 0; |
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| 70 | } |
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| 71 | |
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| 72 | |
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| 73 | G4CrossSectionIonisationBornElectron::~G4CrossSectionIonisationBornElectron() |
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| 74 | { |
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| 75 | delete table; |
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| 76 | } |
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| 77 | |
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| 78 | G4double G4CrossSectionIonisationBornElectron::CrossSection(const G4Track& track) |
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| 79 | { |
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| 80 | // Lazy initialisation: load cross section tables in memory the first time access to them is required |
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| 81 | |
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| 82 | G4double sigma = 0.; |
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| 83 | |
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| 84 | if (table == 0) |
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| 85 | { |
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| 86 | // Load tables |
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| 87 | // ---- MGP ---- |
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| 88 | table = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, eV,(1e-22/3.343)*m*m ); |
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| 89 | table->LoadData("dna/sigma_ionisation_e_born"); |
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| 90 | |
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| 91 | // ---- MGP ---- Temporary |
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| 92 | table->PrintData(); |
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| 93 | } |
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| 94 | |
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| 95 | const G4DynamicParticle* particle = track.GetDynamicParticle(); |
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| 96 | G4double k = particle->GetKineticEnergy(); |
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| 97 | |
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| 98 | if (k > lowEnergyLimit && k < highEnergyLimit) |
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| 99 | { |
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| 100 | sigma = table->FindValue(k); // no electron interaction ---- MGP ---- What does this mean? |
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| 101 | } |
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| 102 | return sigma; |
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| 103 | } |
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| 104 | |
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| 105 | |
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