[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: G4ParticleChangeForMSC.hh,v 1.9 2006/06/29 21:14:25 gunter Exp $ |
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| 28 | // GEANT4 tag $ $ |
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| 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 | // Class Description |
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| 36 | // This class is special "Particle Change" for Multiple Scattering process |
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| 37 | // |
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| 38 | // ------------------------------------------------------------ |
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| 39 | // Implemented for the new scheme 23 Mar. 1998 H.Kurahige |
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| 40 | // Add Get/SetMomentumDirectionChange 6 Feb. 1999 H.Kurashige |
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| 41 | // Update for model variant of msc 16 Jan 2004 V.Ivanchenko |
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| 42 | // |
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| 43 | // ------------------------------------------------------------- |
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| 44 | #ifndef G4ParticleChangeForMSC_h |
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| 45 | #define G4ParticleChangeForMSC_h 1 |
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| 46 | |
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| 47 | #include "globals.hh" |
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| 48 | #include "G4ios.hh" |
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| 49 | #include "G4ThreeVector.hh" |
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| 50 | #include "G4ThreeVector.hh" |
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| 51 | class G4DynamicParticle; |
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| 52 | #include "G4VParticleChange.hh" |
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| 53 | |
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| 54 | class G4ParticleChangeForMSC: public G4VParticleChange |
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| 55 | { |
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| 56 | public: |
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| 57 | // default constructor |
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| 58 | G4ParticleChangeForMSC(); |
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| 59 | |
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| 60 | // destructor |
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| 61 | virtual ~G4ParticleChangeForMSC(); |
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| 62 | |
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| 63 | protected: |
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| 64 | // hide copy constructor and assignment operaor as protected |
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| 65 | G4ParticleChangeForMSC(const G4ParticleChangeForMSC &right); |
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| 66 | G4ParticleChangeForMSC & operator=(const G4ParticleChangeForMSC &right); |
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| 67 | |
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| 68 | |
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| 69 | public: // with description |
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| 70 | // ---------------------------------------------------- |
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| 71 | // --- the following methods are for updating G4Step ----- |
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| 72 | // Return the pointer to the G4Step after updating the Step information |
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| 73 | // by using final state information of the track given by a physics |
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| 74 | // process |
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| 75 | virtual G4Step* UpdateStepForAlongStep(G4Step* Step); |
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| 76 | virtual G4Step* UpdateStepForPostStep(G4Step* Step); |
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| 77 | // A physics process gives the final state of the particle |
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| 78 | // based on information of G4Track (or equivalently the PreStepPoint) |
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| 79 | |
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| 80 | virtual void Initialize(const G4Track&); |
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| 81 | // Initialize all propoerties by using G4Track information |
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| 82 | |
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| 83 | // ---------------------------------------------------- |
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| 84 | //--- methods to keep information of the final state-- |
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| 85 | // IMPORTANT NOTE: Although the name of the class and methods are |
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| 86 | // "Change", what it stores (and returns in get) are the "FINAL" |
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| 87 | // values of the Position, Momentum, etc. |
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| 88 | |
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| 89 | void ProposeMomentumDirection(const G4ThreeVector& Pfinal); |
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| 90 | void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz); |
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| 91 | const G4ThreeVector* GetMomentumDirection() const; |
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| 92 | const G4ThreeVector* GetProposedMomentumDirection() const; |
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| 93 | void SetProposedMomentumDirection(const G4ThreeVector& Pfinal); |
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| 94 | // Get/Set theMomentumDirectionChange vector: it is the final momentum direction. |
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| 95 | |
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| 96 | const G4ThreeVector* GetPosition() const; |
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| 97 | void ProposePosition(const G4ThreeVector& finalPosition); |
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| 98 | const G4ThreeVector* GetProposedPosition() const; |
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| 99 | void SetProposedPosition(const G4ThreeVector& finalPosition); |
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| 100 | // Get/Set the final position of the current particle. |
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| 101 | |
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| 102 | public: |
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| 103 | virtual void DumpInfo() const; |
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| 104 | // for Debug |
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| 105 | virtual G4bool CheckIt(const G4Track&); |
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| 106 | |
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| 107 | private: |
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| 108 | G4ThreeVector theMomentumDirection; |
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| 109 | // It is the vector containing the final momentum direction |
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| 110 | // after the invoked process. The application of the change |
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| 111 | // of the momentum direction of the particle is not Done here. |
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| 112 | // The responsibility to apply the change is up the entity |
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| 113 | // which invoked the process. |
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| 114 | |
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| 115 | G4ThreeVector thePosition; |
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| 116 | // The changed (final) position of a given particle. |
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| 117 | |
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| 118 | }; |
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| 119 | |
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| 120 | #include "G4ParticleChangeForMSC.icc" |
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| 121 | #endif |
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| 122 | |
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