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1 //
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25 //
26 // G4VRestContinuousDiscreteProcess
27 //
28 // Class description:
29 //
30 // Abstract class which defines the public behavior of
31 // continuous and 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 G4VRestContinuousDiscreteProcess_hh
38 #define G4VRestContinuousDiscreteProcess_hh 1
39
40 #include "globals.hh"
41 #include "G4ios.hh"
42
43 #include "G4VProcess.hh"
44
45 class G4VRestContinuousDiscreteProcess : public G4VProcess
46 {
47 public:
48
49 G4VRestContinuousDiscreteProcess(const G4String& ,
50 G4ProcessType aType = fNotDefined);
51 G4VRestContinuousDiscreteProcess(G4VRestContinuousDiscreteProcess &);
52
53 virtual ~G4VRestContinuousDiscreteProcess();
54
55 G4VRestContinuousDiscreteProcess& operator=(const G4VRestContinuousDiscreteProcess&) = delete;
56
57 virtual G4double PostStepGetPhysicalInteractionLength(
58 const G4Track& track,
59 G4double previousStepSize,
60 G4ForceCondition* condition
61 );
62
63 virtual G4VParticleChange* PostStepDoIt(
64 const G4Track& ,
65 const G4Step&
66 );
67
68 virtual G4double AlongStepGetPhysicalInteractionLength(
69 const G4Track& track,
70 G4double previousStepSize,
71 G4double currentMinimumStep,
72 G4double& currentSafety,
73 G4GPILSelection* selection
74 );
75
76 virtual G4VParticleChange* AlongStepDoIt(
77 const G4Track& ,
78 const G4Step&
79 );
80
81 virtual G4double AtRestGetPhysicalInteractionLength(
82 const G4Track& ,
83 G4ForceCondition*
84 );
85
86 virtual G4VParticleChange* AtRestDoIt(
87 const G4Track& ,
88 const G4Step&
89 );
90
91 protected:
92
93 virtual G4double GetMeanLifeTime( const G4Track& aTrack,
94 G4ForceCondition* condition ) = 0;
95 // Calculates the mean life-time (i.e. for decays) of the
96 // particle at rest due to the occurrence of the given process,
97 // or converts the probability of interaction (i.e. for
98 // annihilation) into the life-time of the particle for the
99 // occurrence of the given process
100
101 virtual G4double GetContinuousStepLimit( const G4Track& aTrack,
102 G4double previousStepSize,
103 G4double currentMinimumStep,
104 G4double& currentSafety ) = 0;
105
106 virtual G4double GetMeanFreePath( const G4Track& aTrack,
107 G4double previousStepSize,
108 G4ForceCondition* condition ) = 0;
109 // Calculates from the macroscopic cross-section a mean
110 // free path, the value is returned in units of distance
111
112 inline void SetGPILSelection(G4GPILSelection selection)
113 { valueGPILSelection = selection; }
114
115 inline G4GPILSelection GetGPILSelection() const
116 { return valueGPILSelection; }
117
118 private:
119
120 G4VRestContinuousDiscreteProcess();
121 // Hidden default constructor
122
123 G4GPILSelection valueGPILSelection = CandidateForSelection;
124 // This is the returned value of G4GPILSelection in
125 // the arguments of AlongStepGPIL()
126 };
127
128 #endif
129