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25 // 22 //
26 // G4ParticleChangeForMSC <<
27 // 23 //
28 // Class description: << 24 // $Id: G4ParticleChangeForMSC.hh,v 1.5 2001/07/11 10:08:36 gunter 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 //
>> 39 // -------------------------------------------------------------
>> 40 #ifndef G4ParticleChangeForMSC_h
>> 41 #define G4ParticleChangeForMSC_h 1
38 42
39 #include "globals.hh" 43 #include "globals.hh"
40 #include "G4ios.hh" 44 #include "G4ios.hh"
41 #include "G4ThreeVector.hh" 45 #include "G4ThreeVector.hh"
>> 46 #include "G4ThreeVector.hh"
>> 47 class G4DynamicParticle;
42 #include "G4VParticleChange.hh" 48 #include "G4VParticleChange.hh"
43 49
44 class G4ParticleChangeForMSC final : public G4 << 50 class G4ParticleChangeForMSC: public G4VParticleChange
45 { << 51 {
46 public: << 52 public:
47 << 53 // default constructor
48 G4ParticleChangeForMSC(); << 54 G4ParticleChangeForMSC();
49 << 55
50 ~G4ParticleChangeForMSC() override = default << 56 // destructor
51 << 57 virtual ~G4ParticleChangeForMSC();
52 G4ParticleChangeForMSC(const G4ParticleChang << 58
53 G4ParticleChangeForMSC& operator= << 59 protected:
54 (const G4ParticleChangeForMSC& right) = dele << 60 // hide copy constructor and assignment operaor as protected
55 << 61 G4ParticleChangeForMSC(const G4ParticleChangeForMSC &right);
56 // A multiple scattering process gives the f << 62 G4ParticleChangeForMSC & operator=(const G4ParticleChangeForMSC &right);
57 G4Step* UpdateStepForAlongStep(G4Step* step) << 63
58 << 64
59 // Initialise only properties changed by mul << 65 public: // with description
60 inline void InitialiseMSC(const G4Track&, co << 66 // ----------------------------------------------------
61 << 67 // --- the following methods are for updating G4Step -----
62 inline void ProposeMomentumDirection(const G << 68 // Return the pointer to the G4Step after updating the Step information
63 inline const G4ThreeVector* GetProposedMomen << 69 // by using final state information of the track given by a physics
>> 70 // process
>> 71 virtual G4Step* UpdateStepForAlongStep(G4Step* Step);
>> 72 virtual G4Step* UpdateStepForAtRest(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 // ----------------------------------------------------
>> 82 //--- methods to keep information of the final state--
>> 83 // IMPORTANT NOTE: Although the name of the class and methods are
>> 84 // "Change", what it stores (and returns in get) are the "FINAL"
>> 85 // values of the Position, Momentum, etc.
>> 86
>> 87 const G4ThreeVector* GetMomentumChange() const;
>> 88 void SetMomentumChange(G4double Px, G4double Py, G4double Pz);
>> 89 void SetMomentumChange(const G4ThreeVector& Pfinal);
>> 90 const G4ThreeVector* GetMomentumDirectionChange() const;
>> 91 void SetMomentumDirectionChange(G4double Px, G4double Py, G4double Pz);
>> 92 void SetMomentumDirectionChange(const G4ThreeVector& Pfinal);
>> 93 // Get/Set theMomentumDirectionChange vector: it is the final momentum direction.
>> 94
>> 95 const G4ThreeVector* GetPositionChange() const;
>> 96 void SetPositionChange(G4double x, G4double y, G4double z);
>> 97 void SetPositionChange(const G4ThreeVector& finalPosition);
>> 98 // Get/Set the final position of the current particle.
>> 99
>> 100 public:
>> 101 virtual void DumpInfo() const;
>> 102
>> 103 protected:
>> 104 G4ThreeVector theMomentumDirectionChange;
>> 105 // It is the vector containing the final momentum direction
>> 106 // after the invoked process. The application of the change
>> 107 // of the momentum direction of the particle is not Done here.
>> 108 // The responsibility to apply the change is up the entity
>> 109 // which invoked the process.
>> 110
>> 111 G4ThreeVector thePositionChange;
>> 112 // The changed (final) position of a given particle.
>> 113
>> 114 public:
>> 115 // for Debug
>> 116 virtual G4bool CheckIt(const G4Track&);
>> 117
>> 118 };
64 119
65 inline void ProposePosition(const G4ThreeVec << 120 #include "G4ParticleChangeForMSC.icc"
66 inline const G4ThreeVector& GetProposedPosit <<
67 121
68 private: << 122 #endif
69 123
70 G4ThreeVector theMomentumDirection; <<
71 // It is the vector containing the final mom <<
72 // after multiple scattering is applied alon <<
73 124
74 G4ThreeVector thePosition; <<
75 // The changed of post step position after m <<
76 }; <<
77 125
78 inline void G4ParticleChangeForMSC::ProposeMom <<
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 } <<
109 126
110 #endif <<
111 127