[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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[1337] | 27 | // $Id: G4VTransitionRadiation.cc,v 1.6 2010/06/16 15:34:15 gcosmo Exp $ |
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| 28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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[819] | 29 | // |
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| 30 | // G4VTransitionRadiation class -- implementation file |
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| 31 | |
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| 32 | // GEANT 4 class implementation file --- Copyright CERN 1995 |
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| 33 | // CERN Geneva Switzerland |
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| 34 | |
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| 35 | // History: |
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| 36 | // 29.02.04 V.Ivanchenko create |
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| 37 | // 28.07.05, P.Gumplinger add G4ProcessType to constructor |
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| 38 | |
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| 39 | #include "G4VTransitionRadiation.hh" |
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| 40 | #include "G4ParticleDefinition.hh" |
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| 41 | #include "G4VTRModel.hh" |
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| 42 | #include "G4Material.hh" |
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| 43 | #include "G4Region.hh" |
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| 44 | #include "G4TransportationManager.hh" |
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| 45 | |
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| 46 | /////////////////////////////////////////////////////////////////////// |
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| 47 | |
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| 48 | G4VTransitionRadiation::G4VTransitionRadiation( const G4String& processName, |
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| 49 | G4ProcessType type ) |
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| 50 | : G4VDiscreteProcess(processName, type), |
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| 51 | nSteps(0), |
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| 52 | gammaMin(100), |
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[1337] | 53 | cosDThetaMax(std::cos(0.1)) |
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[819] | 54 | { |
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| 55 | Clear(); |
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| 56 | } |
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| 57 | |
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| 58 | /////////////////////////////////////////////////////////////////////// |
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| 59 | |
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| 60 | G4VTransitionRadiation::~G4VTransitionRadiation() |
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| 61 | { |
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| 62 | Clear(); |
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| 63 | } |
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| 64 | |
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| 65 | /////////////////////////////////////////////////////////////////////// |
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| 66 | |
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| 67 | void G4VTransitionRadiation::Clear() |
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| 68 | { |
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| 69 | materials.clear(); |
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| 70 | steps.clear(); |
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| 71 | normals.clear(); |
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| 72 | nSteps = 0; |
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| 73 | } |
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| 74 | |
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| 75 | /////////////////////////////////////////////////////////////////////// |
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| 76 | |
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| 77 | G4VParticleChange* G4VTransitionRadiation::PostStepDoIt( |
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| 78 | const G4Track& track, |
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| 79 | const G4Step& step) |
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| 80 | { |
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| 81 | |
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| 82 | // Fill temporary vectors |
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| 83 | |
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| 84 | const G4Material* material = track.GetMaterial(); |
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| 85 | G4double length = step.GetStepLength(); |
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| 86 | G4ThreeVector direction = track.GetMomentumDirection(); |
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| 87 | |
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| 88 | if(nSteps == 0) { |
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| 89 | |
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| 90 | nSteps = 1; |
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| 91 | materials.push_back(material); |
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| 92 | steps.push_back(length); |
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| 93 | const G4StepPoint* point = step.GetPreStepPoint(); |
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| 94 | startingPosition = point->GetPosition(); |
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| 95 | startingDirection = point->GetMomentumDirection(); |
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| 96 | G4bool valid = true; |
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| 97 | G4ThreeVector n = G4TransportationManager::GetTransportationManager() |
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| 98 | ->GetNavigatorForTracking()->GetLocalExitNormal(&valid); |
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| 99 | if(valid) normals.push_back(n); |
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| 100 | else normals.push_back(direction); |
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| 101 | |
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| 102 | } else { |
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| 103 | |
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| 104 | if(material == materials[nSteps-1]) { |
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| 105 | steps[nSteps-1] += length; |
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| 106 | } else { |
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| 107 | nSteps++; |
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| 108 | materials.push_back(material); |
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| 109 | steps.push_back(length); |
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| 110 | G4bool valid = true; |
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| 111 | G4ThreeVector n = G4TransportationManager::GetTransportationManager() |
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| 112 | ->GetNavigatorForTracking()->GetLocalExitNormal(&valid); |
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| 113 | if(valid) normals.push_back(n); |
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| 114 | else normals.push_back(direction); |
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| 115 | } |
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| 116 | } |
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| 117 | |
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| 118 | // Check POstStepPoint condition |
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| 119 | |
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| 120 | if(track.GetTrackStatus() == fStopAndKill || |
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| 121 | track.GetVolume()->GetLogicalVolume()->GetRegion() != region || |
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| 122 | startingDirection.x()*direction.x() + |
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| 123 | startingDirection.y()*direction.y() + |
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| 124 | startingDirection.z()*direction.z() < cosDThetaMax) |
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| 125 | { |
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| 126 | if(model) { |
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| 127 | model->GenerateSecondaries(*pParticleChange, materials, steps, |
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| 128 | normals, startingPosition, track); |
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| 129 | } |
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| 130 | Clear(); |
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| 131 | } |
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| 132 | |
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| 133 | return pParticleChange; |
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| 134 | } |
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| 135 | |
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| 136 | /////////////////////////////////////////////////////////////////////// |
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| 137 | |
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| 138 | G4bool G4VTransitionRadiation::IsApplicable( |
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| 139 | const G4ParticleDefinition& aParticle) |
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| 140 | { |
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| 141 | return ( aParticle.GetPDGCharge() != 0.0 ); |
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| 142 | } |
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| 143 | |
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| 144 | /////////////////////////////////////////////////////////////////////// |
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| 145 | |
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| 146 | |
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| 147 | void G4VTransitionRadiation::SetRegion(const G4Region* reg) |
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| 148 | { |
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| 149 | region = reg; |
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| 150 | } |
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| 151 | |
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| 152 | /////////////////////////////////////////////////////////////////////// |
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| 153 | |
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| 154 | void G4VTransitionRadiation::SetModel(G4VTRModel* m) |
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| 155 | { |
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| 156 | model = m; |
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| 157 | } |
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| 158 | |
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| 159 | /////////////////////////////////////////////////////////////////////// |
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| 160 | |
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| 161 | void G4VTransitionRadiation::PrintInfoDefinition() |
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| 162 | { |
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| 163 | if(model) model->PrintInfo(); |
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| 164 | } |
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| 165 | |
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| 166 | /////////////////////////////////////////////////////////////////////// |
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