[807] | 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 | // Code developed by: |
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| 28 | // S. Agostinelli, F. Foppiano, S. Garelli , M. Tropeano, S.Guatelli |
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| 29 | // |
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| 30 | // Code review: MGP, 5 November 2006 (still to be completed) |
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| 31 | // |
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| 32 | // ********************************** |
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| 33 | // * * |
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| 34 | // * BrachyPhysicsList.cc * |
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| 35 | // * * |
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| 36 | // ********************************** |
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| 37 | // |
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[1230] | 38 | // $Id: BrachyPhysicsList.cc,v 1.14 2009/11/12 02:50:51 cirrone Exp $ |
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| 39 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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[807] | 40 | // |
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| 41 | #include "BrachyPhysicsList.hh" |
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| 42 | |
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| 43 | #include "G4ParticleDefinition.hh" |
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| 44 | #include "G4ProductionCutsTable.hh" |
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| 45 | #include "G4ProcessManager.hh" |
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| 46 | #include "G4ParticleTypes.hh" |
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| 47 | #include "G4UnitsTable.hh" |
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| 48 | #include "G4ios.hh" |
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| 49 | #include "G4MultipleScattering.hh" |
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| 50 | // gamma |
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[1230] | 51 | #include "G4PhotoElectricEffect.hh" |
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| 52 | #include "G4LivermorePhotoElectricModel.hh" |
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| 53 | |
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| 54 | #include "G4ComptonScattering.hh" |
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| 55 | #include "G4LivermoreComptonModel.hh" |
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| 56 | |
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| 57 | #include "G4GammaConversion.hh" |
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| 58 | #include "G4LivermoreGammaConversionModel.hh" |
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| 59 | |
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| 60 | #include "G4RayleighScattering.hh" |
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| 61 | #include "G4LivermoreRayleighModel.hh" |
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| 62 | |
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[807] | 63 | // e- |
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[1230] | 64 | #include "G4eMultipleScattering.hh" |
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| 65 | #include "G4eIonisation.hh" |
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| 66 | #include "G4LivermoreIonisationModel.hh" |
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| 67 | #include "G4eBremsstrahlung.hh" |
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| 68 | #include "G4LivermoreBremsstrahlungModel.hh" |
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| 69 | |
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[807] | 70 | // e+ |
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| 71 | #include "G4eIonisation.hh" |
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| 72 | #include "G4eBremsstrahlung.hh" |
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| 73 | #include "G4eplusAnnihilation.hh" |
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| 74 | |
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| 75 | BrachyPhysicsList::BrachyPhysicsList(): G4VUserPhysicsList() |
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| 76 | { |
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| 77 | SetVerboseLevel(1); |
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| 78 | } |
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| 79 | |
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| 80 | BrachyPhysicsList::~BrachyPhysicsList() |
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| 81 | { |
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| 82 | } |
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| 83 | |
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| 84 | void BrachyPhysicsList::ConstructParticle() |
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| 85 | { |
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| 86 | // In this method, static member functions should be called |
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| 87 | // for all particles which you want to use. |
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| 88 | // This ensures that objects of these particle types will be |
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| 89 | // created in the program. |
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| 90 | |
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| 91 | ConstructBosons(); |
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| 92 | ConstructLeptons(); |
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[1230] | 93 | |
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[807] | 94 | } |
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| 95 | |
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| 96 | void BrachyPhysicsList::ConstructBosons() |
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| 97 | { |
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| 98 | // photons |
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| 99 | G4Gamma::GammaDefinition(); |
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| 100 | } |
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| 101 | |
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| 102 | void BrachyPhysicsList::ConstructLeptons() |
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| 103 | { |
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| 104 | // leptons |
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| 105 | G4Electron::ElectronDefinition(); |
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| 106 | G4Positron::PositronDefinition(); |
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| 107 | } |
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| 108 | |
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| 109 | void BrachyPhysicsList::ConstructProcess() |
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| 110 | { |
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| 111 | AddTransportation(); |
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| 112 | ConstructEM(); |
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| 113 | } |
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| 114 | |
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| 115 | void BrachyPhysicsList::ConstructEM() |
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| 116 | { |
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| 117 | theParticleIterator->reset(); |
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| 118 | |
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| 119 | while( (*theParticleIterator)() ){ |
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| 120 | |
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| 121 | G4ParticleDefinition* particle = theParticleIterator->value(); |
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| 122 | G4ProcessManager* pmanager = particle->GetProcessManager(); |
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| 123 | G4String particleName = particle->GetParticleName(); |
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| 124 | |
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| 125 | // Processes |
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| 126 | |
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| 127 | if (particleName == "gamma") { |
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[1230] | 128 | |
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[807] | 129 | // Photon |
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[1230] | 130 | G4RayleighScattering* theRayleigh = new G4RayleighScattering(); |
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| 131 | theRayleigh->SetModel(new G4LivermoreRayleighModel()); //not strictly necessary |
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| 132 | pmanager->AddDiscreteProcess(theRayleigh); |
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| 133 | |
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| 134 | G4PhotoElectricEffect* thePhotoElectricEffect = new G4PhotoElectricEffect(); |
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| 135 | thePhotoElectricEffect->SetModel(new G4LivermorePhotoElectricModel()); |
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| 136 | pmanager->AddDiscreteProcess(thePhotoElectricEffect); |
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| 137 | |
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| 138 | G4ComptonScattering* theComptonScattering = new G4ComptonScattering(); |
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| 139 | theComptonScattering->SetModel(new G4LivermoreComptonModel()); |
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| 140 | pmanager->AddDiscreteProcess(theComptonScattering); |
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| 141 | |
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| 142 | G4GammaConversion* theGammaConversion = new G4GammaConversion(); |
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| 143 | theGammaConversion->SetModel(new G4LivermoreGammaConversionModel()); |
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| 144 | pmanager->AddDiscreteProcess(theGammaConversion); |
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[807] | 145 | |
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| 146 | } else if (particleName == "e-") { |
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| 147 | // Electron |
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[1230] | 148 | |
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| 149 | G4eMultipleScattering* msc = new G4eMultipleScattering(); |
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| 150 | msc->SetStepLimitType(fUseDistanceToBoundary); |
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| 151 | pmanager->AddProcess(msc,-1, 1, 1); |
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[807] | 152 | |
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[1230] | 153 | // Ionisation |
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| 154 | G4eIonisation* eIonisation = new G4eIonisation(); |
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| 155 | eIonisation->SetEmModel(new G4LivermoreIonisationModel()); |
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| 156 | eIonisation->SetStepFunction(0.2, 100*um); //improved precision in tracking |
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| 157 | pmanager->AddProcess(eIonisation,-1, 2, 2); |
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| 158 | |
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| 159 | // Bremsstrahlung |
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| 160 | G4eBremsstrahlung* eBremsstrahlung = new G4eBremsstrahlung(); |
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| 161 | eBremsstrahlung->SetEmModel(new G4LivermoreBremsstrahlungModel()); |
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| 162 | pmanager->AddProcess(eBremsstrahlung, -1,-3, 3); |
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[807] | 163 | |
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| 164 | } else if (particleName == "e+") { |
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| 165 | // Positron |
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[1230] | 166 | G4eMultipleScattering* msc = new G4eMultipleScattering(); |
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| 167 | msc->SetStepLimitType(fUseDistanceToBoundary); |
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| 168 | pmanager->AddProcess(msc,-1, 1, 1); |
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| 169 | |
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| 170 | // Ionisation |
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| 171 | G4eIonisation* eIonisation = new G4eIonisation(); |
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| 172 | eIonisation->SetStepFunction(0.2, 100*um); // |
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| 173 | pmanager->AddProcess(eIonisation, -1, 2, 2); |
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| 174 | |
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| 175 | //Bremsstrahlung (use default, no low-energy available) |
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| 176 | pmanager->AddProcess(new G4eBremsstrahlung(), -1,-1, 3); |
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| 177 | |
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| 178 | //Annihilation |
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| 179 | pmanager->AddProcess(new G4eplusAnnihilation(),0,-1, 4); |
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[807] | 180 | |
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| 181 | } |
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| 182 | } |
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| 183 | } |
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| 184 | |
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| 185 | void BrachyPhysicsList::SetCuts() |
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| 186 | { |
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| 187 | // The production threshold is fixed to 0.1 mm for all the particles |
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| 188 | // Secondary particles with a range bigger than 0.1 mm |
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| 189 | // are generated; otherwise their energy is considered deposited locally |
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| 190 | |
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| 191 | defaultCutValue = 0.1 * mm; |
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| 192 | |
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| 193 | const G4double cutForGamma = defaultCutValue; |
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| 194 | const G4double cutForElectron = defaultCutValue; |
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| 195 | const G4double cutForPositron = defaultCutValue; |
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| 196 | |
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| 197 | SetCutValue(cutForGamma, "gamma"); |
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| 198 | SetCutValue(cutForElectron, "e-"); |
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| 199 | SetCutValue(cutForPositron, "e+"); |
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| 200 | |
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| 201 | // Set the secondary production cut lower than 990. eV |
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| 202 | // Very important for high precision of lowenergy processes at low energies |
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| 203 | |
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| 204 | G4double lowLimit = 250. * eV; |
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| 205 | G4double highLimit = 100. * GeV; |
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| 206 | G4ProductionCutsTable::GetProductionCutsTable()->SetEnergyRange(lowLimit, highLimit); |
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| 207 | |
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| 208 | if (verboseLevel>0) DumpCutValuesTable(); |
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| 209 | } |
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