[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: G4hIonisation.cc,v 1.82 2009/02/20 12:06:37 vnivanch Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-03-beta-cand-01 $ |
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[819] | 28 | // |
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| 29 | // ------------------------------------------------------------------- |
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| 30 | // |
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| 31 | // GEANT4 Class file |
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| 32 | // |
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| 33 | // |
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| 34 | // File name: G4hIonisation |
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| 35 | // |
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| 36 | // Author: Laszlo Urban |
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| 37 | // |
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| 38 | // Creation date: 30.05.1997 |
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| 39 | // |
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| 40 | // Modifications: |
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| 41 | // |
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| 42 | // corrected by L.Urban on 24/09/97 |
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| 43 | // several bugs corrected by L.Urban on 13/01/98 |
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| 44 | // 07-04-98 remove 'tracking cut' of the ionizing particle, mma |
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| 45 | // 22-10-98 cleanup L.Urban |
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| 46 | // 02-02-99 bugs fixed , L.Urban |
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| 47 | // 29-07-99 correction in BuildLossTable for low energy, L.Urban |
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| 48 | // 10-02-00 modifications , new e.m. structure, L.Urban |
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| 49 | // 10-08-00 V.Ivanchenko change BuildLambdaTable, in order to |
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| 50 | // simulate energy losses of ions; correction to |
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| 51 | // cross section for particles with spin 1 is inserted as well |
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| 52 | // 28-05-01 V.Ivanchenko minor changes to provide ANSI -wall compilation |
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| 53 | // 10-08-01 new methods Store/Retrieve PhysicsTable (mma) |
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| 54 | // 14-08-01 new function ComputeRestrictedMeandEdx() + 'cleanup' (mma) |
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| 55 | // 29-08-01 PostStepDoIt: correction for spin 1/2 (instead of 1) (mma) |
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| 56 | // 17-09-01 migration of Materials to pure STL (mma) |
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| 57 | // 25-09-01 completion of RetrievePhysicsTable() (mma) |
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| 58 | // 29-10-01 all static functions no more inlined |
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| 59 | // 08-11-01 Charge renamed zparticle; added to the dedx |
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| 60 | // 27-03-02 Bug fix in scaling of lambda table (V.Ivanchenko) |
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| 61 | // 09-04-02 Update calculation of tables for GenericIons (V.Ivanchenko) |
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| 62 | // 30-04-02 V.Ivanchenko update to new design |
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| 63 | // 04-12-02 Add verbose level definition (VI) |
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| 64 | // 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko) |
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| 65 | // 26-12-02 Secondary production moved to derived classes (V.Ivanchenko) |
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| 66 | // 13-02-03 SubCutoff regime is assigned to a region (V.Ivanchenko) |
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| 67 | // 23-05-03 Define default integral + BohrFluctuations (V.Ivanchenko) |
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| 68 | // 03-06-03 Fix initialisation problem for STD ionisation (V.Ivanchenko) |
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| 69 | // 04-08-03 Set integral=false to be default (V.Ivanchenko) |
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| 70 | // 08-08-03 STD substitute standard (V.Ivanchenko) |
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| 71 | // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko) |
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| 72 | // 27-05-04 Set integral to be a default regime (V.Ivanchenko) |
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| 73 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko) |
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| 74 | // 24-03-05 Optimize internal interfaces (V.Ivantchenko) |
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| 75 | // 12-08-05 SetStepLimits(0.2, 0.1*mm) (mma) |
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| 76 | // 10-01-06 SetStepLimits -> SetStepFunction (V.Ivanchenko) |
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| 77 | // 26-05-06 scale negative particles from pi- and pbar, |
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| 78 | // positive from pi+ and p (VI) |
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| 79 | // 14-01-07 use SetEmModel() and SetFluctModel() from G4VEnergyLossProcess (mma) |
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[961] | 80 | // 12-09-08 Removed CorrectionsAlongStep (VI) |
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[819] | 81 | // |
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| 82 | // ------------------------------------------------------------------- |
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| 83 | // |
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| 84 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 85 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 86 | |
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| 87 | #include "G4hIonisation.hh" |
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| 88 | #include "G4Electron.hh" |
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| 89 | #include "G4Proton.hh" |
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| 90 | #include "G4AntiProton.hh" |
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| 91 | #include "G4BraggModel.hh" |
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| 92 | #include "G4BetheBlochModel.hh" |
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[961] | 93 | #include "G4IonFluctuations.hh" |
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[819] | 94 | #include "G4UniversalFluctuation.hh" |
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| 95 | #include "G4BohrFluctuations.hh" |
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| 96 | #include "G4UnitsTable.hh" |
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| 97 | #include "G4PionPlus.hh" |
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| 98 | #include "G4PionMinus.hh" |
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[961] | 99 | #include "G4KaonPlus.hh" |
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| 100 | #include "G4KaonMinus.hh" |
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[819] | 101 | |
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| 102 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 103 | |
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| 104 | using namespace std; |
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| 105 | |
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| 106 | G4hIonisation::G4hIonisation(const G4String& name) |
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| 107 | : G4VEnergyLossProcess(name), |
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[961] | 108 | isInitialised(false), |
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| 109 | nuclearStopping(true) |
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[819] | 110 | { |
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[961] | 111 | // SetStepFunction(0.2, 1.0*mm); |
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| 112 | //SetIntegral(true); |
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| 113 | //SetVerboseLevel(1); |
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| 114 | SetProcessSubType(fIonisation); |
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[819] | 115 | mass = 0.0; |
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| 116 | ratio = 0.0; |
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| 117 | } |
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| 118 | |
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| 119 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 120 | |
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| 121 | G4hIonisation::~G4hIonisation() |
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| 122 | {} |
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| 123 | |
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[1055] | 124 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 125 | |
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| 126 | G4bool G4hIonisation::IsApplicable(const G4ParticleDefinition& p) |
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| 127 | { |
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| 128 | return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 10.0*MeV && |
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| 129 | !p.IsShortLived()); |
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| 130 | } |
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| 131 | |
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| 132 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 133 | |
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| 134 | G4double G4hIonisation::MinPrimaryEnergy(const G4ParticleDefinition*, |
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| 135 | const G4Material*, |
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| 136 | G4double cut) |
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| 137 | { |
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| 138 | G4double x = 0.5*cut/electron_mass_c2; |
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| 139 | G4double g = x*ratio + std::sqrt((1. + x)*(1. + x*ratio*ratio)); |
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| 140 | return mass*(g - 1.0); |
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| 141 | } |
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| 142 | |
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[819] | 143 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 144 | |
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| 145 | void G4hIonisation::InitialiseEnergyLossProcess( |
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| 146 | const G4ParticleDefinition* part, |
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| 147 | const G4ParticleDefinition* bpart) |
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| 148 | { |
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[961] | 149 | if(!isInitialised) { |
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[819] | 150 | |
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[961] | 151 | const G4ParticleDefinition* theBaseParticle = 0; |
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| 152 | G4String pname = part->GetParticleName(); |
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[819] | 153 | |
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[961] | 154 | // standard base particles |
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| 155 | if(part == bpart || pname == "proton" || |
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| 156 | pname == "anti_proton" || |
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| 157 | pname == "pi+" || pname == "pi-" || |
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| 158 | pname == "kaon+" || pname == "kaon-") |
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| 159 | { |
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| 160 | theBaseParticle = 0; |
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| 161 | } |
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| 162 | // select base particle |
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| 163 | else if(bpart == 0) { |
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[819] | 164 | |
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[961] | 165 | if(part->GetPDGSpin() == 0.0) |
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| 166 | if(part->GetPDGCharge() > 0.0 ) { |
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| 167 | theBaseParticle = G4KaonPlus::KaonPlus(); |
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| 168 | } else { |
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| 169 | theBaseParticle = G4KaonMinus::KaonMinus(); |
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| 170 | } |
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| 171 | else if(part->GetPDGCharge() > 0.0) { |
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| 172 | theBaseParticle = G4Proton::Proton(); |
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| 173 | } else { |
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| 174 | theBaseParticle = G4AntiProton::AntiProton(); |
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| 175 | } |
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| 176 | // base particle defined by interface |
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| 177 | } else { |
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| 178 | theBaseParticle = bpart; |
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| 179 | } |
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| 180 | SetBaseParticle(theBaseParticle); |
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| 181 | SetSecondaryParticle(G4Electron::Electron()); |
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[819] | 182 | |
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[961] | 183 | mass = part->GetPDGMass(); |
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| 184 | ratio = electron_mass_c2/mass; |
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[819] | 185 | |
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[961] | 186 | if(mass < 900.*MeV) nuclearStopping = false; |
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[819] | 187 | |
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[961] | 188 | if (!EmModel(1)) SetEmModel(new G4BraggModel(),1); |
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| 189 | EmModel(1)->SetLowEnergyLimit(MinKinEnergy()); |
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[819] | 190 | |
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[961] | 191 | // model limit defined for protons |
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| 192 | eth = (EmModel(1)->HighEnergyLimit())*mass/proton_mass_c2; |
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| 193 | EmModel(1)->SetHighEnergyLimit(eth); |
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| 194 | AddEmModel(1, EmModel(1), new G4IonFluctuations()); |
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[819] | 195 | |
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[961] | 196 | if (!FluctModel()) SetFluctModel(new G4UniversalFluctuation()); |
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[819] | 197 | |
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[961] | 198 | if (!EmModel(2)) SetEmModel(new G4BetheBlochModel(),2); |
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| 199 | EmModel(2)->SetLowEnergyLimit(eth); |
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| 200 | EmModel(2)->SetHighEnergyLimit(MaxKinEnergy()); |
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| 201 | AddEmModel(2, EmModel(2), FluctModel()); |
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[819] | 202 | |
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[961] | 203 | isInitialised = true; |
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| 204 | } |
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| 205 | EmModel(1)->ActivateNuclearStopping(nuclearStopping); |
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| 206 | EmModel(2)->ActivateNuclearStopping(nuclearStopping); |
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[819] | 207 | } |
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| 208 | |
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| 209 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 210 | |
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| 211 | void G4hIonisation::PrintInfo() |
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| 212 | { |
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[961] | 213 | if(EmModel(1) && EmModel(2)) { |
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| 214 | G4cout << " NuclearStopping= " << nuclearStopping |
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[819] | 215 | << G4endl; |
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| 216 | } |
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| 217 | } |
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| 218 | |
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| 219 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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