[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 | // $Id: G4hIonisation.cc,v 1.70 2008/01/14 11:59:45 vnivanch Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-01-patch-02 $ |
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| 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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| 80 | // |
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| 81 | // ------------------------------------------------------------------- |
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| 82 | // |
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| 83 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 84 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 85 | |
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| 86 | #include "G4hIonisation.hh" |
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| 87 | #include "G4Electron.hh" |
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| 88 | #include "G4Proton.hh" |
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| 89 | #include "G4AntiProton.hh" |
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| 90 | #include "G4BraggModel.hh" |
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| 91 | #include "G4BetheBlochModel.hh" |
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| 92 | #include "G4UniversalFluctuation.hh" |
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| 93 | #include "G4BohrFluctuations.hh" |
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| 94 | #include "G4UnitsTable.hh" |
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| 95 | #include "G4PionPlus.hh" |
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| 96 | #include "G4PionMinus.hh" |
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| 97 | #include "G4LossTableManager.hh" |
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| 98 | |
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| 99 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 100 | |
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| 101 | using namespace std; |
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| 102 | |
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| 103 | G4hIonisation::G4hIonisation(const G4String& name) |
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| 104 | : G4VEnergyLossProcess(name), |
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| 105 | theParticle(0), |
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| 106 | theBaseParticle(0), |
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| 107 | isInitialised(false) |
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| 108 | { |
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| 109 | SetStepFunction(0.2, 1*mm); |
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| 110 | SetIntegral(true); |
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| 111 | SetVerboseLevel(1); |
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| 112 | mass = 0.0; |
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| 113 | ratio = 0.0; |
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| 114 | corr = G4LossTableManager::Instance()->EmCorrections(); |
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| 115 | nuclearStopping = true; |
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| 116 | } |
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| 117 | |
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| 118 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 119 | |
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| 120 | G4hIonisation::~G4hIonisation() |
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| 121 | {} |
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| 122 | |
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| 123 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 124 | |
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| 125 | void G4hIonisation::InitialiseEnergyLossProcess( |
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| 126 | const G4ParticleDefinition* part, |
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| 127 | const G4ParticleDefinition* bpart) |
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| 128 | { |
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| 129 | if(isInitialised) return; |
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| 130 | |
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| 131 | theParticle = part; |
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| 132 | |
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| 133 | G4String pname = part->GetParticleName(); |
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| 134 | |
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| 135 | // standard base particles |
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| 136 | if(part == bpart || pname == "proton" || |
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| 137 | pname == "anti_proton" || pname == "pi+" || pname == "pi-" ) |
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| 138 | theBaseParticle = 0; |
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| 139 | |
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| 140 | // select base particle |
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| 141 | else if(bpart == 0) { |
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| 142 | |
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| 143 | if(pname == "kaon+") theBaseParticle = G4PionPlus::PionPlus(); |
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| 144 | else if(pname == "kaon-") theBaseParticle = G4PionMinus::PionMinus(); |
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| 145 | else if(part->GetPDGCharge() > 0.0) theBaseParticle = G4Proton::Proton(); |
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| 146 | else theBaseParticle = G4AntiProton::AntiProton(); |
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| 147 | |
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| 148 | } else theBaseParticle = bpart; |
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| 149 | |
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| 150 | SetBaseParticle(theBaseParticle); |
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| 151 | SetSecondaryParticle(G4Electron::Electron()); |
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| 152 | mass = theParticle->GetPDGMass(); |
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| 153 | ratio = electron_mass_c2/mass; |
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| 154 | massratio = 1.0; |
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| 155 | if(theBaseParticle) massratio = theBaseParticle->GetPDGMass()/mass; |
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| 156 | |
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| 157 | if (!EmModel(1)) SetEmModel(new G4BraggModel(),1); |
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| 158 | EmModel(1)->SetLowEnergyLimit(100*eV); |
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| 159 | eth = 2.0*MeV*mass/proton_mass_c2; |
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| 160 | ethnuc = eth*50.0; |
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| 161 | EmModel(1)->SetHighEnergyLimit(eth); |
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| 162 | if (!FluctModel()) SetFluctModel(new G4UniversalFluctuation()); |
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| 163 | AddEmModel(1, EmModel(1), FluctModel()); |
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| 164 | |
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| 165 | if (!EmModel(2)) SetEmModel(new G4BetheBlochModel(),2); |
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| 166 | EmModel(2)->SetLowEnergyLimit(eth); |
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| 167 | EmModel(2)->SetHighEnergyLimit(100*TeV); |
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| 168 | AddEmModel(2, EmModel(2), FluctModel()); |
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| 169 | |
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| 170 | isInitialised = true; |
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| 171 | } |
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| 172 | |
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| 173 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 174 | |
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| 175 | void G4hIonisation::PrintInfo() |
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| 176 | { |
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| 177 | if(EmModel(1) && EmModel(2)) |
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| 178 | G4cout << " Scaling relation is used from proton dE/dx and range." |
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| 179 | << "\n Delta cross sections and sampling from " |
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| 180 | << EmModel(2)->GetName() << " model for scaled energy > " |
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| 181 | << eth/MeV << " MeV" |
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| 182 | << "\n Parametrisation from " |
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| 183 | << EmModel(1)->GetName() << " for protons below." |
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| 184 | << " NuclearStopping= " << nuclearStopping |
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| 185 | << G4endl; |
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| 186 | } |
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| 187 | |
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| 188 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 189 | |
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| 190 | void G4hIonisation::CorrectionsAlongStep(const G4MaterialCutsCouple* couple, |
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| 191 | const G4DynamicParticle* dp, |
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| 192 | G4double& eloss, |
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| 193 | G4double& s) |
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| 194 | { |
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| 195 | G4double ekin = dp->GetKineticEnergy(); |
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| 196 | if(nuclearStopping && ekin < ethnuc) { |
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| 197 | G4double nloss = s*corr->NuclearDEDX(theParticle,couple->GetMaterial(), |
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| 198 | ekin - eloss*0.5); |
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| 199 | eloss += nloss; |
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| 200 | // G4cout << "G4ionIonisation::CorrectionsAlongStep: e= " << preKinEnergy |
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| 201 | // << " de= " << eloss << " NIEL= " << nloss << G4endl; |
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| 202 | fParticleChange.ProposeNonIonizingEnergyDeposit(nloss); |
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| 203 | } |
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| 204 | } |
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| 205 | |
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| 206 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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