[826] | 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: G4ParticleChangeForGamma.hh,v 1.9 2008/01/11 19:57:12 vnivanch Exp $ |
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[850] | 28 | // GEANT4 tag $Name: HEAD $ |
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[826] | 29 | // |
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| 30 | // |
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| 31 | // ------------------------------------------------------------ |
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| 32 | // GEANT 4 class header file |
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| 33 | // |
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| 34 | // |
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| 35 | // ------------------------------------------------------------ |
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| 36 | // 15 April 2005 V.Ivanchenko for gamma EM processes |
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| 37 | // |
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| 38 | // Modified: |
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| 39 | // 30.05.05 : add UpdateStepForAtRest (V.Ivanchenko) |
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| 40 | // 04.12.05 : apply UpdateStepForPostStep in any case (mma) |
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| 41 | // 26.08.06 : Add->Set polarization; |
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| 42 | // add const method to access track; |
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| 43 | // add weight modification (V.Ivanchenko) |
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| 44 | // |
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| 45 | // ------------------------------------------------------------ |
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| 46 | // |
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| 47 | // Class Description |
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| 48 | // This class is a concrete class for ParticleChange for gamma processes |
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| 49 | // |
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| 50 | #ifndef G4ParticleChangeForGamma_h |
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| 51 | #define G4ParticleChangeForGamma_h 1 |
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| 52 | |
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| 53 | #include "globals.hh" |
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| 54 | #include "G4ios.hh" |
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| 55 | #include "G4VParticleChange.hh" |
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| 56 | |
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| 57 | class G4DynamicParticle; |
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| 58 | |
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| 59 | class G4ParticleChangeForGamma: public G4VParticleChange |
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| 60 | { |
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| 61 | public: |
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| 62 | // default constructor |
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| 63 | G4ParticleChangeForGamma(); |
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| 64 | |
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| 65 | // destructor |
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| 66 | virtual ~G4ParticleChangeForGamma(); |
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| 67 | |
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| 68 | // with description |
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| 69 | // ---------------------------------------------------- |
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| 70 | // --- the following methods are for updating G4Step ----- |
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| 71 | |
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| 72 | G4Step* UpdateStepForAtRest(G4Step* pStep); |
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| 73 | G4Step* UpdateStepForPostStep(G4Step* Step); |
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| 74 | // A physics process gives the final state of the particle |
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| 75 | // based on information of G4Track |
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| 76 | |
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| 77 | void InitializeForPostStep(const G4Track&); |
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| 78 | //Initialize all propoerties by using G4Track information |
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| 79 | |
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| 80 | void AddSecondary(G4DynamicParticle* aParticle); |
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| 81 | // Add next secondary |
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| 82 | |
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| 83 | G4double GetProposedKineticEnergy() const; |
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| 84 | void SetProposedKineticEnergy(G4double proposedKinEnergy); |
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| 85 | // Get/Set the final kinetic energy of the current particle. |
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| 86 | |
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| 87 | const G4ThreeVector& GetProposedMomentumDirection() const; |
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| 88 | void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz); |
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| 89 | void ProposeMomentumDirection(const G4ThreeVector& Pfinal); |
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| 90 | // Get/Propose the MomentumDirection vector: it is the final momentum direction. |
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| 91 | |
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| 92 | const G4ThreeVector& GetProposedPolarization() const; |
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| 93 | void ProposePolarization(const G4ThreeVector& dir); |
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| 94 | void ProposePolarization(G4double Px, G4double Py, G4double Pz); |
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| 95 | |
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| 96 | const G4Track* GetCurrentTrack() const; |
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| 97 | |
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| 98 | virtual void DumpInfo() const; |
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| 99 | |
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| 100 | // for Debug |
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| 101 | virtual G4bool CheckIt(const G4Track&); |
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| 102 | |
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| 103 | protected: |
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| 104 | // hide copy constructor and assignment operaor as protected |
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| 105 | G4ParticleChangeForGamma(const G4ParticleChangeForGamma &right); |
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| 106 | G4ParticleChangeForGamma & operator=(const G4ParticleChangeForGamma &right); |
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| 107 | |
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| 108 | private: |
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| 109 | |
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| 110 | const G4Track* currentTrack; |
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| 111 | // The pointer to G4Track |
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| 112 | |
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| 113 | G4double proposedKinEnergy; |
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| 114 | // The final kinetic energy of the current particle. |
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| 115 | |
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| 116 | G4ThreeVector proposedMomentumDirection; |
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| 117 | // The final momentum direction of the current particle. |
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| 118 | |
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| 119 | G4ThreeVector proposedPolarization; |
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| 120 | // The final polarization of the current particle. |
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| 121 | }; |
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| 122 | |
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| 123 | // ------------------------------------------------------------ |
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| 124 | |
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| 125 | inline G4double G4ParticleChangeForGamma::GetProposedKineticEnergy() const |
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| 126 | { |
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| 127 | return proposedKinEnergy; |
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| 128 | } |
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| 129 | |
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| 130 | inline void G4ParticleChangeForGamma::SetProposedKineticEnergy(G4double energy) |
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| 131 | { |
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| 132 | proposedKinEnergy = energy; |
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| 133 | } |
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| 134 | |
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| 135 | inline |
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| 136 | const G4ThreeVector& G4ParticleChangeForGamma::GetProposedMomentumDirection() const |
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| 137 | { |
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| 138 | return proposedMomentumDirection; |
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| 139 | } |
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| 140 | |
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| 141 | inline |
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| 142 | void G4ParticleChangeForGamma::ProposeMomentumDirection(const G4ThreeVector& dir) |
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| 143 | { |
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| 144 | proposedMomentumDirection = dir; |
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| 145 | } |
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| 146 | |
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| 147 | inline |
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| 148 | void G4ParticleChangeForGamma::ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz) |
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| 149 | { |
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| 150 | proposedMomentumDirection.setX(Px); |
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| 151 | proposedMomentumDirection.setY(Py); |
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| 152 | proposedMomentumDirection.setZ(Pz); |
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| 153 | } |
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| 154 | |
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| 155 | inline const G4Track* G4ParticleChangeForGamma::GetCurrentTrack() const |
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| 156 | { |
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| 157 | return currentTrack; |
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| 158 | } |
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| 159 | |
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| 160 | inline |
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| 161 | const G4ThreeVector& G4ParticleChangeForGamma::GetProposedPolarization() const |
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| 162 | { |
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| 163 | return proposedPolarization; |
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| 164 | } |
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| 165 | |
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| 166 | inline |
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| 167 | void G4ParticleChangeForGamma::ProposePolarization(const G4ThreeVector& dir) |
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| 168 | { |
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| 169 | proposedPolarization = dir; |
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| 170 | } |
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| 171 | |
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| 172 | inline |
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| 173 | void G4ParticleChangeForGamma::ProposePolarization(G4double Px, G4double Py, G4double Pz) |
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| 174 | { |
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| 175 | proposedPolarization.setX(Px); |
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| 176 | proposedPolarization.setY(Py); |
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| 177 | proposedPolarization.setZ(Pz); |
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| 178 | } |
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| 179 | |
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| 180 | inline void G4ParticleChangeForGamma::InitializeForPostStep(const G4Track& track) |
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| 181 | { |
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| 182 | theStatusChange = track.GetTrackStatus(); |
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| 183 | theLocalEnergyDeposit = 0.0; |
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| 184 | theNonIonizingEnergyDeposit = 0.0; |
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| 185 | InitializeSecondaries(track); |
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| 186 | theParentWeight = track.GetWeight(); |
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| 187 | proposedKinEnergy = track.GetKineticEnergy(); |
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| 188 | proposedMomentumDirection = track.GetMomentumDirection(); |
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| 189 | proposedPolarization = track.GetPolarization(); |
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| 190 | currentTrack = &track; |
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| 191 | } |
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| 192 | |
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| 193 | //---------------------------------------------------------------- |
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| 194 | // method for updating G4Step |
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| 195 | // |
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| 196 | |
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| 197 | inline G4Step* G4ParticleChangeForGamma::UpdateStepForAtRest(G4Step* pStep) |
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| 198 | { |
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| 199 | pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit ); |
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| 200 | pStep->SetStepLength( 0.0 ); |
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| 201 | if (!fSetParentWeightByProcess) |
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| 202 | pStep->GetPostStepPoint()->SetWeight( theParentWeight ); |
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| 203 | return pStep; |
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| 204 | } |
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| 205 | |
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| 206 | inline G4Step* G4ParticleChangeForGamma::UpdateStepForPostStep(G4Step* pStep) |
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| 207 | { |
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| 208 | G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint(); |
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| 209 | pPostStepPoint->SetKineticEnergy( proposedKinEnergy ); |
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| 210 | pPostStepPoint->SetMomentumDirection( proposedMomentumDirection ); |
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| 211 | pPostStepPoint->SetPolarization( proposedPolarization ); |
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| 212 | |
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| 213 | // update weight |
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| 214 | // this feature is commented out, it should be overwritten in case |
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| 215 | // if energy loss processes will use biasing |
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| 216 | if (!fSetParentWeightByProcess) |
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| 217 | pPostStepPoint->SetWeight( theParentWeight ); |
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| 218 | |
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| 219 | pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit ); |
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| 220 | pStep->AddNonIonizingEnergyDeposit( theNonIonizingEnergyDeposit ); |
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| 221 | return pStep; |
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| 222 | } |
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| 223 | |
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| 224 | inline void G4ParticleChangeForGamma::AddSecondary(G4DynamicParticle* aParticle) |
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| 225 | { |
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| 226 | // create track |
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| 227 | G4Track* aTrack = new G4Track(aParticle, currentTrack->GetGlobalTime(), |
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| 228 | currentTrack->GetPosition()); |
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| 229 | |
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| 230 | // Touchable handle is copied to keep the pointer |
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| 231 | aTrack->SetTouchableHandle(currentTrack->GetTouchableHandle()); |
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| 232 | |
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| 233 | // add a secondary |
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| 234 | G4VParticleChange::AddSecondary(aTrack); |
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| 235 | } |
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| 236 | |
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| 237 | #endif |
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| 238 | |
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