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24 // ******************************************* 21 // ********************************************************************
25 // 22 //
26 // G4ParticleChangeForMSC <<
27 // 23 //
28 // Class description: << 24 // $Id: G4ParticleChangeForMSC.hh,v 1.8 2004/10/19 00:51:29 kurasige Exp $
>> 25 // GEANT4 tag $ $
29 // 26 //
30 // Concrete "Particle Change" class for Multip << 27 //
31 << 28 // ------------------------------------------------------------
32 // Author: Hisaya Kurashige, 23 March 1998 << 29 // GEANT 4 class header file
33 // Revision: Vladimir Ivantchenko, 16 January << 30 //
34 // 23 August 2 << 31 //
35 // ------------------------------------------- << 32 // Class Description
36 #ifndef G4ParticleChangeForMSC_hh << 33 // This class is special "Particle Change" for Multiple Scattering process
37 #define G4ParticleChangeForMSC_hh 1 << 34 //
>> 35 // ------------------------------------------------------------
>> 36 // Implemented for the new scheme 23 Mar. 1998 H.Kurahige
>> 37 // Add Get/SetMomentumDirectionChange 6 Feb. 1999 H.Kurashige
>> 38 // Update for model variant of msc 16 Jan 2004 V.Ivanchenko
>> 39 //
>> 40 // -------------------------------------------------------------
>> 41 #ifndef G4ParticleChangeForMSC_h
>> 42 #define G4ParticleChangeForMSC_h 1
38 43
39 #include "globals.hh" 44 #include "globals.hh"
40 #include "G4ios.hh" 45 #include "G4ios.hh"
41 #include "G4ThreeVector.hh" 46 #include "G4ThreeVector.hh"
>> 47 #include "G4ThreeVector.hh"
>> 48 class G4DynamicParticle;
42 #include "G4VParticleChange.hh" 49 #include "G4VParticleChange.hh"
43 50
44 class G4ParticleChangeForMSC final : public G4 << 51 class G4ParticleChangeForMSC: public G4VParticleChange
45 { << 52 {
46 public: << 53 public:
47 << 54 // default constructor
48 G4ParticleChangeForMSC(); << 55 G4ParticleChangeForMSC();
49 << 56
50 ~G4ParticleChangeForMSC() override = default << 57 // destructor
51 << 58 virtual ~G4ParticleChangeForMSC();
52 G4ParticleChangeForMSC(const G4ParticleChang << 59
53 G4ParticleChangeForMSC& operator= << 60 protected:
54 (const G4ParticleChangeForMSC& right) = dele << 61 // hide copy constructor and assignment operaor as protected
>> 62 G4ParticleChangeForMSC(const G4ParticleChangeForMSC &right);
>> 63 G4ParticleChangeForMSC & operator=(const G4ParticleChangeForMSC &right);
>> 64
>> 65
>> 66 public: // with description
>> 67 // ----------------------------------------------------
>> 68 // --- the following methods are for updating G4Step -----
>> 69 // Return the pointer to the G4Step after updating the Step information
>> 70 // by using final state information of the track given by a physics
>> 71 // process
>> 72 virtual G4Step* UpdateStepForAlongStep(G4Step* Step);
>> 73 virtual G4Step* UpdateStepForPostStep(G4Step* Step);
>> 74 // A physics process gives the final state of the particle
>> 75 // based on information of G4Track (or equivalently the PreStepPoint)
>> 76
>> 77 virtual void Initialize(const G4Track&);
>> 78 // Initialize all propoerties by using G4Track information
>> 79
>> 80 // ----------------------------------------------------
>> 81 //--- methods to keep information of the final state--
>> 82 // IMPORTANT NOTE: Although the name of the class and methods are
>> 83 // "Change", what it stores (and returns in get) are the "FINAL"
>> 84 // values of the Position, Momentum, etc.
>> 85
>> 86 void ProposeMomentumDirection(const G4ThreeVector& Pfinal);
>> 87 void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz);
>> 88 const G4ThreeVector* GetMomentumDirection() const;
>> 89 const G4ThreeVector* GetProposedMomentumDirection() const;
>> 90 void SetProposedMomentumDirection(const G4ThreeVector& Pfinal);
>> 91 // Get/Set theMomentumDirectionChange vector: it is the final momentum direction.
>> 92
>> 93 const G4ThreeVector* GetPosition() const;
>> 94 void ProposePosition(const G4ThreeVector& finalPosition);
>> 95 const G4ThreeVector* GetProposedPosition() const;
>> 96 void SetProposedPosition(const G4ThreeVector& finalPosition);
>> 97 // Get/Set the final position of the current particle.
>> 98
>> 99 public:
>> 100 virtual void DumpInfo() const;
>> 101 // for Debug
>> 102 virtual G4bool CheckIt(const G4Track&);
>> 103
>> 104 private:
>> 105 G4ThreeVector theMomentumDirection;
>> 106 // It is the vector containing the final momentum direction
>> 107 // after the invoked process. The application of the change
>> 108 // of the momentum direction of the particle is not Done here.
>> 109 // The responsibility to apply the change is up the entity
>> 110 // which invoked the process.
55 111
56 // A multiple scattering process gives the f << 112 G4ThreeVector thePosition;
57 G4Step* UpdateStepForAlongStep(G4Step* step) << 113 // The changed (final) position of a given particle.
58 114
59 // Initialise only properties changed by mul <<
60 inline void InitialiseMSC(const G4Track&, co <<
61 <<
62 inline void ProposeMomentumDirection(const G <<
63 inline const G4ThreeVector* GetProposedMomen <<
64 <<
65 inline void ProposePosition(const G4ThreeVec <<
66 inline const G4ThreeVector& GetProposedPosit <<
67 <<
68 private: <<
69 <<
70 G4ThreeVector theMomentumDirection; <<
71 // It is the vector containing the final mom <<
72 // after multiple scattering is applied alon <<
73 <<
74 G4ThreeVector thePosition; <<
75 // The changed of post step position after m <<
76 }; 115 };
77 116
78 inline void G4ParticleChangeForMSC::ProposeMom << 117 #include "G4ParticleChangeForMSC.icc"
79 const G4ThreeVector& P) <<
80 { <<
81 theMomentumDirection = P; <<
82 } <<
83 <<
84 inline const G4ThreeVector* <<
85 G4ParticleChangeForMSC::GetProposedMomentumDir <<
86 { <<
87 return &theMomentumDirection; <<
88 } <<
89 <<
90 inline void G4ParticleChangeForMSC::ProposePos <<
91 { <<
92 thePosition = P; <<
93 } <<
94 <<
95 inline const G4ThreeVector& G4ParticleChangeFo <<
96 { <<
97 return thePosition; <<
98 } <<
99 <<
100 inline void <<
101 G4ParticleChangeForMSC::InitialiseMSC(const G4 <<
102 { <<
103 theStatusChange = track.GetTrackStatus(); <<
104 auto poststep = step.GetPostStepPoint(); <<
105 thePosition = poststep->GetPosition(); <<
106 theMomentumDirection = poststep->GetMomentum <<
107 theCurrentTrack = &track; <<
108 } <<
109 <<
110 #endif 118 #endif
>> 119
111 120