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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // G4VDiscreteProcess 26 // G4VDiscreteProcess
27 // 27 //
28 // Class description: 28 // Class description:
29 // 29 //
30 // Abstract class which defines the public beh 30 // Abstract class which defines the public behavior of
31 // discrete physics interactions. 31 // discrete physics interactions.
32 32
33 // Authors: 33 // Authors:
34 // - 2 December 1995, G.Cosmo - First implemen 34 // - 2 December 1995, G.Cosmo - First implementation, based on object model
35 // - 18 December 1996, H.Kurashige - New Physi 35 // - 18 December 1996, H.Kurashige - New Physics scheme
36 // ------------------------------------------- 36 // --------------------------------------------------------------------
37 #ifndef G4VDiscreteProcess_hh 37 #ifndef G4VDiscreteProcess_hh
38 #define G4VDiscreteProcess_hh 1 38 #define G4VDiscreteProcess_hh 1
39 39
40 #include "globals.hh" 40 #include "globals.hh"
41 #include "G4ios.hh" 41 #include "G4ios.hh"
42 42
43 #include "G4VProcess.hh" 43 #include "G4VProcess.hh"
44 44
45 class G4VDiscreteProcess : public G4VProcess 45 class G4VDiscreteProcess : public G4VProcess
46 { 46 {
47 public: 47 public:
48 48
49 G4VDiscreteProcess(const G4String& aName, 49 G4VDiscreteProcess(const G4String& aName,
50 G4ProcessType aType = f 50 G4ProcessType aType = fNotDefined );
51 G4VDiscreteProcess(G4VDiscreteProcess&); 51 G4VDiscreteProcess(G4VDiscreteProcess&);
52 52
53 virtual ~G4VDiscreteProcess(); 53 virtual ~G4VDiscreteProcess();
54 54
55 G4VDiscreteProcess& operator=(const G4VDis 55 G4VDiscreteProcess& operator=(const G4VDiscreteProcess&) = delete;
56 56
57 virtual G4double PostStepGetPhysicalIntera 57 virtual G4double PostStepGetPhysicalInteractionLength(
58 const G4Track& tr 58 const G4Track& track,
59 G4double previous 59 G4double previousStepSize,
60 G4ForceCondition* 60 G4ForceCondition* condition
61 ); 61 );
62 62
63 virtual G4VParticleChange* PostStepDoIt( 63 virtual G4VParticleChange* PostStepDoIt(
64 const G4Track& , 64 const G4Track& ,
65 const G4Step& 65 const G4Step&
66 ); 66 );
67 67
68 // No operation in AtRestDoIt and AlongSte 68 // No operation in AtRestDoIt and AlongStepDoIt
69 // 69 //
70 virtual G4double AlongStepGetPhysicalInter 70 virtual G4double AlongStepGetPhysicalInteractionLength(
71 const G4Track&, 71 const G4Track&,
72 G4double , 72 G4double ,
73 G4double , 73 G4double ,
74 G4double& , 74 G4double& ,
75 G4GPILSelection* 75 G4GPILSelection*
76 ) { return -1.0; } 76 ) { return -1.0; }
77 77
78 virtual G4double AtRestGetPhysicalInteract 78 virtual G4double AtRestGetPhysicalInteractionLength(
79 const G4Track& , 79 const G4Track& ,
80 G4ForceCondition* 80 G4ForceCondition*
81 ) { return -1.0; } 81 ) { return -1.0; }
82 82
83 // No operation in AtRestDoIt and AlongSte 83 // No operation in AtRestDoIt and AlongStepDoIt
84 // 84 //
85 virtual G4VParticleChange* AtRestDoIt( 85 virtual G4VParticleChange* AtRestDoIt(
86 const G4Track& , 86 const G4Track& ,
87 const G4Step& 87 const G4Step&
88 ) { return nullptr << 88 ) { return 0; }
89 89
90 virtual G4VParticleChange* AlongStepDoIt( 90 virtual G4VParticleChange* AlongStepDoIt(
91 const G4Track& , 91 const G4Track& ,
92 const G4Step& 92 const G4Step&
93 ) { return nullptr << 93 ) { return 0; }
94 <<
95 // cross section in the unit of inverse le <<
96 // function of kinetic energy <<
97 virtual G4double GetCrossSection( <<
98 const G4double, <<
99 const G4MaterialC <<
100 ) { return 0.0; } <<
101 <<
102 // minimal energy for non-zero cross secti <<
103 virtual G4double MinPrimaryEnergy( <<
104 const G4ParticleD <<
105 const G4Material* <<
106 ) { return 0.0; } <<
107 94
108 protected: 95 protected:
109 96
110 virtual G4double GetMeanFreePath( const G4 97 virtual G4double GetMeanFreePath( const G4Track& aTrack,
111 G4double 98 G4double previousStepSize,
112 G4ForceC 99 G4ForceCondition* condition ) = 0;
113 // Calculates from the macroscopic cross 100 // Calculates from the macroscopic cross-section a mean
114 // free path, the value is returned in u 101 // free path, the value is returned in units of distance
115 102
116 private: 103 private:
117 104
118 G4VDiscreteProcess(); 105 G4VDiscreteProcess();
119 // Hidden default constructor 106 // Hidden default constructor
120 }; 107 };
121 108
122 #endif 109 #endif
123 110