[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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| 27 | // $Id: G4TransitionRadiation.hh,v 1.9 2006/06/29 19:55:47 gunter Exp $ |
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| 28 | // GEANT4 tag $Name: $ |
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| 29 | // |
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| 30 | // G4TransitionRadiation -- header file |
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| 31 | // |
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| 32 | // Class for description of transition radiation generated |
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| 33 | // by charged particle crossed interface between material 1 |
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| 34 | // and material 2 (1 -> 2). Transition radiation could be of kind: |
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| 35 | // - optical back |
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| 36 | // - optical forward |
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| 37 | // - X-ray forward (for relativistic case Tkin/mass >= 10^2) |
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| 38 | // |
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| 39 | // GEANT 4 class header file --- Copyright CERN 1995 |
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| 40 | // CERB Geneva Switzerland |
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| 41 | // |
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| 42 | // for information related to this code, please, contact |
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| 43 | // CERN, CN Division, ASD Group |
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| 44 | // History: |
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| 45 | // 18.12.97, V. Grichine (Vladimir.Grichine@cern.ch) |
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| 46 | // 02.02.00, V.Grichine, new data fEnergy and fVarAngle for double |
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| 47 | // numerical integration in inherited classes |
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| 48 | // 03.06.03, V.Ivanchenko fix compilation warnings |
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| 49 | // 28.07.05, P.Gumplinger add G4ProcessType to constructor |
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| 50 | |
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| 51 | #ifndef G4TransitionRadiation_h |
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| 52 | #define G4TransitionRadiation_h |
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| 53 | |
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| 54 | |
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| 55 | #include "G4VDiscreteProcess.hh" |
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| 56 | #include "G4Material.hh" |
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| 57 | // #include "G4OpBoundaryProcess.hh" |
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| 58 | |
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| 59 | class G4TransitionRadiation : public G4VDiscreteProcess |
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| 60 | { |
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| 61 | public: |
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| 62 | |
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| 63 | // Constructors |
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| 64 | |
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| 65 | |
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| 66 | G4TransitionRadiation( const G4String& processName = "TR", |
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| 67 | G4ProcessType type = fElectromagnetic) ; |
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| 68 | |
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| 69 | |
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| 70 | // G4TransitionRadiation(const G4TransitionRadiation& right) ; |
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| 71 | |
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| 72 | // Destructor |
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| 73 | |
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| 74 | virtual ~G4TransitionRadiation() ; |
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| 75 | |
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| 76 | // Operators |
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| 77 | // G4TransitionRadiation& operator=(const G4TransitionRadiation& right) ; |
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| 78 | // G4int operator==(const G4TransitionRadiation& right)const ; |
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| 79 | // G4int operator!=(const G4TransitionRadiation& right)const ; |
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| 80 | |
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| 81 | // Methods |
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| 82 | |
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| 83 | G4bool IsApplicable(const G4ParticleDefinition& aParticleType) |
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| 84 | { |
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| 85 | return ( aParticleType.GetPDGCharge() != 0.0 ); |
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| 86 | } |
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| 87 | |
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| 88 | G4double GetMeanFreePath(const G4Track&, |
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| 89 | G4double, |
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| 90 | G4ForceCondition* condition) |
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| 91 | { |
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| 92 | *condition = Forced; |
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| 93 | return DBL_MAX; // so TR doesn't limit mean free path |
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| 94 | } |
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| 95 | |
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| 96 | G4VParticleChange* PostStepDoIt(const G4Track&, |
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| 97 | const G4Step&) |
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| 98 | { |
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| 99 | ClearNumberOfInteractionLengthLeft(); |
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| 100 | return &aParticleChange; |
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| 101 | } |
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| 102 | |
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| 103 | |
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| 104 | |
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| 105 | |
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| 106 | virtual |
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| 107 | G4double SpectralAngleTRdensity( G4double energy, |
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| 108 | G4double varAngle ) const = 0 ; |
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| 109 | |
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| 110 | G4double IntegralOverEnergy( G4double energy1, |
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| 111 | G4double energy2, |
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| 112 | G4double varAngle ) const ; |
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| 113 | |
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| 114 | G4double IntegralOverAngle( G4double energy, |
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| 115 | G4double varAngle1, |
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| 116 | G4double varAngle2 ) const ; |
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| 117 | |
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| 118 | G4double AngleIntegralDistribution( G4double varAngle1, |
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| 119 | G4double varAngle2 ) const ; |
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| 120 | |
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| 121 | G4double EnergyIntegralDistribution( G4double energy1, |
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| 122 | G4double energy2 ) const ; |
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| 123 | |
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| 124 | |
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| 125 | |
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| 126 | // Access functions |
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| 127 | |
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| 128 | |
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| 129 | protected : |
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| 130 | |
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| 131 | G4int fMatIndex1 ; // index of the 1st material |
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| 132 | G4int fMatIndex2 ; // index of the 2nd material |
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| 133 | |
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| 134 | // private : |
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| 135 | |
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| 136 | G4double fGamma ; |
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| 137 | G4double fEnergy ; |
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| 138 | G4double fVarAngle ; |
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| 139 | |
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| 140 | // Local constants |
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| 141 | static const G4int fSympsonNumber ; // Accuracy of Sympson integration 10 |
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| 142 | static const G4int fGammaNumber ; // = 15 |
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| 143 | static const G4int fPointNumber ; // = 100 |
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| 144 | |
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| 145 | G4double fMinEnergy ; // min TR energy |
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| 146 | G4double fMaxEnergy ; // max TR energy |
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| 147 | G4double fMaxTheta ; // max theta of TR quanta |
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| 148 | |
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| 149 | G4double fSigma1 ; // plasma energy Sq of matter1 |
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| 150 | G4double fSigma2 ; // plasma energy Sq of matter2 |
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| 151 | |
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| 152 | |
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| 153 | } ; |
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| 154 | |
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| 155 | #endif // G4TransitionRadiation_h |
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