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>> 1 // This code implementation is the intellectual property of
>> 2 // the GEANT4 collaboration.
1 // 3 //
2 // ******************************************* << 4 // By copying, distributing or modifying the Program (or any work
3 // * License and Disclaimer << 5 // based on the Program) you indicate your acceptance of this statement,
4 // * << 6 // and all its terms.
5 // * The Geant4 software is copyright of th << 7 //
6 // * the Geant4 Collaboration. It is provided << 8 // $Id: G4ParticleChangeForMSC.hh,v 1.4 1999/11/07 16:32:00 kurasige Exp $
7 // * conditions of the Geant4 Software License << 9 // GEANT4 tag $ $
8 // * LICENSE and available at http://cern.ch/ << 10 //
9 // * include a list of copyright holders. << 11 //
10 // * << 12 // ------------------------------------------------------------
11 // * Neither the authors of this software syst << 13 // GEANT 4 class header file
12 // * institutes,nor the agencies providing fin << 14 //
13 // * work make any representation or warran << 15 // For information related to this code contact:
14 // * regarding this software system or assum << 16 // CERN, CN Division, ASD group
15 // * use. Please see the license in the file << 17 //
16 // * for the full disclaimer and the limitatio << 18 // Class Description
17 // * << 19 // This class is special "Particle Change" for Multiple Scattering process
18 // * This code implementation is the result << 20 //
19 // * technical work of the GEANT4 collaboratio << 21 // ------------------------------------------------------------
20 // * By using, copying, modifying or distri << 22 // Implemented for the new scheme 23 Mar. 1998 H.Kurahige
21 // * any work based on the software) you ag << 23 // Add Get/SetMomentumDirectionChange 6 Feb. 1999 H.Kurashige
22 // * use in resulting scientific publicati << 24 //
23 // * acceptance of all terms of the Geant4 Sof << 25 // -------------------------------------------------------------
24 // ******************************************* << 26 #ifndef G4ParticleChangeForMSC_h
25 // << 27 #define G4ParticleChangeForMSC_h 1
26 // G4ParticleChangeForMSC <<
27 // <<
28 // Class description: <<
29 // <<
30 // Concrete "Particle Change" class for Multip <<
31 <<
32 // Author: Hisaya Kurashige, 23 March 1998 <<
33 // Revision: Vladimir Ivantchenko, 16 January <<
34 // 23 August 2 <<
35 // ------------------------------------------- <<
36 #ifndef G4ParticleChangeForMSC_hh <<
37 #define G4ParticleChangeForMSC_hh 1 <<
38 28
39 #include "globals.hh" 29 #include "globals.hh"
40 #include "G4ios.hh" 30 #include "G4ios.hh"
41 #include "G4ThreeVector.hh" 31 #include "G4ThreeVector.hh"
>> 32 #include "G4ThreeVector.hh"
>> 33 class G4DynamicParticle;
42 #include "G4VParticleChange.hh" 34 #include "G4VParticleChange.hh"
43 35
44 class G4ParticleChangeForMSC final : public G4 << 36 class G4ParticleChangeForMSC: public G4VParticleChange
45 { << 37 {
46 public: << 38 public:
47 << 39 // default constructor
48 G4ParticleChangeForMSC(); << 40 G4ParticleChangeForMSC();
49 << 41
50 ~G4ParticleChangeForMSC() override = default << 42 // destructor
51 << 43 virtual ~G4ParticleChangeForMSC();
52 G4ParticleChangeForMSC(const G4ParticleChang << 44
53 G4ParticleChangeForMSC& operator= << 45 protected:
54 (const G4ParticleChangeForMSC& right) = dele << 46 // hide copy constructor and assignment operaor as protected
55 << 47 G4ParticleChangeForMSC(const G4ParticleChangeForMSC &right);
56 // A multiple scattering process gives the f << 48 G4ParticleChangeForMSC & operator=(const G4ParticleChangeForMSC &right);
57 G4Step* UpdateStepForAlongStep(G4Step* step) << 49
58 << 50
59 // Initialise only properties changed by mul << 51 public: // with description
60 inline void InitialiseMSC(const G4Track&, co << 52 // ----------------------------------------------------
61 << 53 // --- the following methods are for updating G4Step -----
62 inline void ProposeMomentumDirection(const G << 54 // Return the pointer to the G4Step after updating the Step information
63 inline const G4ThreeVector* GetProposedMomen << 55 // by using final state information of the track given by a physics
>> 56 // process
>> 57 virtual G4Step* UpdateStepForAlongStep(G4Step* Step);
>> 58 virtual G4Step* UpdateStepForAtRest(G4Step* Step);
>> 59 virtual G4Step* UpdateStepForPostStep(G4Step* Step);
>> 60 // A physics process gives the final state of the particle
>> 61 // based on information of G4Track (or equivalently the PreStepPoint)
>> 62
>> 63 virtual void Initialize(const G4Track&);
>> 64 // Initialize all propoerties by using G4Track information
>> 65
>> 66
>> 67 // ----------------------------------------------------
>> 68 //--- methods to keep information of the final state--
>> 69 // IMPORTANT NOTE: Although the name of the class and methods are
>> 70 // "Change", what it stores (and returns in get) are the "FINAL"
>> 71 // values of the Position, Momentum, etc.
>> 72
>> 73 const G4ThreeVector* GetMomentumChange() const;
>> 74 void SetMomentumChange(G4double Px, G4double Py, G4double Pz);
>> 75 void SetMomentumChange(const G4ThreeVector& Pfinal);
>> 76 const G4ThreeVector* GetMomentumDirectionChange() const;
>> 77 void SetMomentumDirectionChange(G4double Px, G4double Py, G4double Pz);
>> 78 void SetMomentumDirectionChange(const G4ThreeVector& Pfinal);
>> 79 // Get/Set theMomentumDirectionChange vector: it is the final momentum direction.
>> 80
>> 81 const G4ThreeVector* GetPositionChange() const;
>> 82 void SetPositionChange(G4double x, G4double y, G4double z);
>> 83 void SetPositionChange(const G4ThreeVector& finalPosition);
>> 84 // Get/Set the final position of the current particle.
>> 85
>> 86 public:
>> 87 virtual void DumpInfo() const;
>> 88
>> 89 protected:
>> 90 G4ThreeVector theMomentumDirectionChange;
>> 91 // It is the vector containing the final momentum direction
>> 92 // after the invoked process. The application of the change
>> 93 // of the momentum direction of the particle is not Done here.
>> 94 // The responsibility to apply the change is up the entity
>> 95 // which invoked the process.
>> 96
>> 97 G4ThreeVector thePositionChange;
>> 98 // The changed (final) position of a given particle.
>> 99
>> 100 public:
>> 101 // for Debug
>> 102 virtual G4bool CheckIt(const G4Track&);
>> 103
>> 104 };
64 105
65 inline void ProposePosition(const G4ThreeVec << 106 #include "G4ParticleChangeForMSC.icc"
66 inline const G4ThreeVector& GetProposedPosit <<
67 107
68 private: << 108 #endif
69 109
70 G4ThreeVector theMomentumDirection; <<
71 // It is the vector containing the final mom <<
72 // after multiple scattering is applied alon <<
73 110
74 G4ThreeVector thePosition; <<
75 // The changed of post step position after m <<
76 }; <<
77 111
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 } <<
109 112
110 #endif <<
111 113