[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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[1055] | 26 | // $Id: G4ComptonScattering.cc,v 1.31 2009/02/20 12:06:37 vnivanch Exp $ |
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[1228] | 27 | // GEANT4 tag $Name: geant4-09-03 $ |
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[819] | 28 | // |
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| 29 | // |
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| 30 | //------------ G4ComptonScattering physics process ----------------------------- |
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| 31 | // by Michel Maire, April 1996 |
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| 32 | // |
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| 33 | // 28-05-96, DoIt() small change in ElecDirection, by M.Maire |
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| 34 | // 10-06-96, simplification in ComputeMicroscopicCrossSection(), by M.Maire |
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| 35 | // 21-06-96, SetCuts implementation, M.Maire |
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| 36 | // 13-09-96, small changes in DoIt for better efficiency. Thanks to P.Urban |
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| 37 | // 06-01-97, crossection table + meanfreepath table, M.Maire |
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| 38 | // 05-03-97, new Physics scheme, M.Maire |
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| 39 | // 28-03-97, protection in BuildPhysicsTable, M.Maire |
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| 40 | // 07-04-98, remove 'tracking cut' of the scattered gamma, MMa |
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| 41 | // 04-06-98, in DoIt, secondary production condition: |
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| 42 | // range>std::min(threshold,safety) |
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| 43 | // 13-08-98, new methods SetBining() PrintInfo() |
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| 44 | // 15-12-98, cross section=0 below 10 keV |
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| 45 | // 28-05-01, V.Ivanchenko minor changes to provide ANSI -wall compilation |
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| 46 | // 13-07-01, DoIt: suppression of production cut for the electron (mma) |
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| 47 | // 03-08-01, new methods Store/Retrieve PhysicsTable (mma) |
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| 48 | // 06-08-01, BuildThePhysicsTable() called from constructor (mma) |
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| 49 | // 17-09-01, migration of Materials to pure STL (mma) |
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| 50 | // 20-09-01, DoIt: fminimalEnergy = 1*eV (mma) |
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| 51 | // 01-10-01, come back to BuildPhysicsTable(const G4ParticleDefinition&) |
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| 52 | // 17-04-02, LowestEnergyLimit = 1*keV |
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| 53 | // 26-05-04, cross section parametrization improved for low energy : |
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| 54 | // Egamma <~ 15 keV (Laszlo) |
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| 55 | // 08-11-04, Remove Store/Retrieve tables (V.Ivanchenko) |
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| 56 | // 09-03-05 Migrate to model interface |
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| 57 | // and inherit from G4VEmProcess (V.Ivanchenko) |
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| 58 | // 04-05-05, Make class to be default (V.Ivanchenko) |
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| 59 | // 09-09-06, modify SetModel(G4VEmModel*) (mma) |
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| 60 | // 12-09-06, move SetModel(G4VEmModel*) in G4VEmProcess (mma) |
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| 61 | // |
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| 62 | // ----------------------------------------------------------------------------- |
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| 63 | |
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| 64 | #include "G4ComptonScattering.hh" |
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| 65 | #include "G4KleinNishinaCompton.hh" |
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| 66 | #include "G4Electron.hh" |
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| 67 | |
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| 68 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 69 | |
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| 70 | using namespace std; |
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| 71 | |
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| 72 | G4ComptonScattering::G4ComptonScattering(const G4String& processName, |
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| 73 | G4ProcessType type):G4VEmProcess (processName, type), |
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| 74 | isInitialised(false) |
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| 75 | { |
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[961] | 76 | SetProcessSubType(fComptonScattering); |
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[819] | 77 | } |
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| 78 | |
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| 79 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 80 | |
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| 81 | G4ComptonScattering::~G4ComptonScattering() |
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| 82 | {} |
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| 83 | |
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| 84 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 85 | |
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[1055] | 86 | G4bool G4ComptonScattering::IsApplicable(const G4ParticleDefinition& p) |
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| 87 | { |
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| 88 | return (&p == G4Gamma::Gamma()); |
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| 89 | } |
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| 90 | |
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| 91 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 92 | |
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[819] | 93 | void G4ComptonScattering::InitialiseProcess(const G4ParticleDefinition*) |
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| 94 | { |
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| 95 | if(!isInitialised) { |
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| 96 | isInitialised = true; |
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| 97 | SetBuildTableFlag(true); |
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| 98 | SetSecondaryParticle(G4Electron::Electron()); |
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| 99 | if(!Model()) SetModel(new G4KleinNishinaCompton); |
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[961] | 100 | Model()->SetLowEnergyLimit(MinKinEnergy()); |
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| 101 | Model()->SetHighEnergyLimit(MaxKinEnergy()); |
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[819] | 102 | AddEmModel(1, Model()); |
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| 103 | } |
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| 104 | } |
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| 105 | |
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| 106 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 107 | |
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| 108 | void G4ComptonScattering::PrintInfo() |
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[961] | 109 | {} |
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[819] | 110 | |
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| 111 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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