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25 //
26 // G4VDiscreteProcess class implementation
27 //
28 // Authors:
29 // - 2 December 1995, G.Cosmo - First implementation, based on object model
30 // - 18 December 1996, H.Kurashige - New Physics scheme
31 // --------------------------------------------------------------------
32
33 #include "G4VDiscreteProcess.hh"
34 #include "G4SystemOfUnits.hh"
35
36 #include "G4Step.hh"
37 #include "G4Track.hh"
38 #include "G4MaterialTable.hh"
39 #include "G4VParticleChange.hh"
40
41 // --------------------------------------------------------------------
42 G4VDiscreteProcess::G4VDiscreteProcess()
43 : G4VProcess("No Name Discrete Process")
44 {
45 G4Exception("G4VDiscreteProcess::G4VDiscreteProcess()", "ProcMan102",
46 JustWarning, "Default constructor is called");
47 }
48
49 // --------------------------------------------------------------------
50 G4VDiscreteProcess::
51 G4VDiscreteProcess(const G4String& aName, G4ProcessType aType)
52 : G4VProcess(aName, aType)
53 {
54 enableAtRestDoIt = false;
55 enableAlongStepDoIt = false;
56 }
57
58 // --------------------------------------------------------------------
59 G4VDiscreteProcess::~G4VDiscreteProcess()
60 {
61 }
62
63 // --------------------------------------------------------------------
64 G4VDiscreteProcess::G4VDiscreteProcess(G4VDiscreteProcess& right)
65 : G4VProcess(right)
66 {
67 }
68
69 // --------------------------------------------------------------------
70 G4double G4VDiscreteProcess::
71 PostStepGetPhysicalInteractionLength( const G4Track& track,
72 G4double previousStepSize,
73 G4ForceCondition* condition )
74 {
75 if ( (previousStepSize < 0.0) || (theNumberOfInteractionLengthLeft<=0.0))
76 {
77 // beginning of tracking (or just after DoIt() of this process)
78 ResetNumberOfInteractionLengthLeft();
79 }
80 else if ( previousStepSize > 0.0)
81 {
82 // subtract NumberOfInteractionLengthLeft
83 SubtractNumberOfInteractionLengthLeft(previousStepSize);
84 }
85 else
86 {
87 // zero step
88 // DO NOTHING
89 }
90
91 // condition is set to "Not Forced"
92 *condition = NotForced;
93
94 // get mean free path
95 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
96
97 G4double value;
98 if (currentInteractionLength < DBL_MAX)
99 {
100 value = theNumberOfInteractionLengthLeft * currentInteractionLength;
101 }
102 else
103 {
104 value = DBL_MAX;
105 }
106 #ifdef G4VERBOSE
107 if (verboseLevel>1)
108 {
109 G4cout << "G4VDiscreteProcess::PostStepGetPhysicalInteractionLength() - ";
110 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
111 track.GetDynamicParticle()->DumpInfo();
112 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
113 G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
114 }
115 #endif
116 return value;
117 }
118
119 // --------------------------------------------------------------------
120 G4VParticleChange* G4VDiscreteProcess::PostStepDoIt( const G4Track& ,
121 const G4Step& )
122 {
123 // clear NumberOfInteractionLengthLeft
124 ClearNumberOfInteractionLengthLeft();
125
126 return pParticleChange;
127 }
128