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1 //
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25 //
26 // G4VRestContinuousProcess
27 //
28 // Class description:
29 //
30 // Abstract class which defines the public behavior of
31 // discrete physics interactions.
32
33 // Authors:
34 // - 2 December 1995, G.Cosmo - First implementation, based on object model
35 // - 8 January 1997, H.Kurashige - New Physics scheme
36 // --------------------------------------------------------------------
37 #ifndef G4VRestContinuousProcess_hh
38 #define G4VRestContinuousProcess_hh 1
39
40 #include "globals.hh"
41 #include "G4ios.hh"
42
43 #include "G4VProcess.hh"
44
45 class G4VRestContinuousProcess : public G4VProcess
46 {
47 public:
48
49 G4VRestContinuousProcess(const G4String& ,
50 G4ProcessType aType = fNotDefined);
51 G4VRestContinuousProcess(G4VRestContinuousProcess &);
52
53 virtual ~G4VRestContinuousProcess();
54
55 G4VRestContinuousProcess& operator=(const G4VRestContinuousProcess&) = delete;
56
57 virtual G4double AtRestGetPhysicalInteractionLength(
58 const G4Track& ,
59 G4ForceCondition*
60 );
61
62 virtual G4VParticleChange* AtRestDoIt(
63 const G4Track& ,
64 const G4Step&
65 );
66
67 virtual G4double AlongStepGetPhysicalInteractionLength(
68 const G4Track& track,
69 G4double previousStepSize,
70 G4double currentMinimumStep,
71 G4double& currentSafety,
72 G4GPILSelection* selection
73 );
74
75 virtual G4VParticleChange* AlongStepDoIt(
76 const G4Track& ,
77 const G4Step&
78 );
79
80 virtual G4double PostStepGetPhysicalInteractionLength(
81 const G4Track& ,
82 G4double ,
83 G4ForceCondition*
84 ) { return -1.0; }
85 // No operation in PostStepDoIt
86
87 virtual G4VParticleChange* PostStepDoIt(
88 const G4Track& ,
89 const G4Step&
90 ) { return 0; }
91 // No operation in PostStepDoIt
92
93 protected:
94
95 virtual G4double GetContinuousStepLimit(const G4Track& aTrack,
96 G4double previousStepSize,
97 G4double currentMinimumStep,
98 G4double& currentSafety) = 0;
99 // This pure virtual function is used to calculate step limit
100 // for AlongStep in the derived processes
101
102 virtual G4double GetMeanLifeTime(const G4Track& aTrack,
103 G4ForceCondition* condition) = 0;
104 // Calculates the mean life-time (i.e. for decays) of the
105 // particle at rest due to the occurrence of the given process, or
106 // converts the probability of interaction (i.e. for annihilation) into
107 // the life-time of the particle for the occurrence of the given process
108
109 inline void SetGPILSelection(G4GPILSelection selection)
110 { valueGPILSelection = selection; }
111
112 inline G4GPILSelection GetGPILSelection() const
113 { return valueGPILSelection; }
114
115
116 private:
117
118 G4VRestContinuousProcess();
119 // Hidden default constructor
120
121 G4GPILSelection valueGPILSelection = CandidateForSelection;
122 // This is the returned value of G4GPILSelection in
123 // the arguments of AlongStepGPIL()
124 };
125
126 #endif
127