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25 // 22 //
26 // G4VDiscreteProcess << 23
>> 24 //
>> 25 // $Id: G4VDiscreteProcess.hh,v 1.4.4.2 2001/06/28 20:20:11 gunter Exp $
>> 26 // GEANT4 tag $Name: $
>> 27 //
>> 28 //
>> 29 // ------------------------------------------------------------
>> 30 // GEANT 4 class header file
>> 31 //
>> 32 // History: first implementation, based on object model of
>> 33 // 2nd December 1995, G.Cosmo
>> 34 // add G4VDiscreteProcess(const G4String&) 24 Jul 1996, Hisaya kurashige
27 // 35 //
28 // Class description: << 36 // Class Description
>> 37 // Abstract class which defines the public behavior of
>> 38 // discrete physics interactions.
29 // 39 //
30 // Abstract class which defines the public beh << 40 // ------------------------------------------------------------
31 // discrete physics interactions. << 41 // New Physics scheme 18 Dec. 1996 H.Kurahige
>> 42 // ------------------------------------------------------------
>> 43 // modified 25 Feb. 1997 H.Kurahige
>> 44 // modified 8 Mar. 1997 H.Kurahige
>> 45 // modified 26 Mar. 1997 H.Kurahige
>> 46 // modified 16 Apr. 1997 L.Urban
>> 47 // modified 17 Dec. 1997 L.Urban
>> 48 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
32 49
33 // Authors: << 50 #ifndef G4VDiscreteProcess_h
34 // - 2 December 1995, G.Cosmo - First implemen << 51 #define G4VDiscreteProcess_h 1
35 // - 18 December 1996, H.Kurashige - New Physi <<
36 // ------------------------------------------- <<
37 #ifndef G4VDiscreteProcess_hh <<
38 #define G4VDiscreteProcess_hh 1 <<
39 52
40 #include "globals.hh" 53 #include "globals.hh"
41 #include "G4ios.hh" 54 #include "G4ios.hh"
42 55
43 #include "G4VProcess.hh" 56 #include "G4VProcess.hh"
44 57
45 class G4VDiscreteProcess : public G4VProcess 58 class G4VDiscreteProcess : public G4VProcess
46 { 59 {
>> 60 // Abstract class which defines the public behavior of
>> 61 // discrete physics interactions.
47 public: 62 public:
48 63
49 G4VDiscreteProcess(const G4String& aName, << 64 G4VDiscreteProcess(const G4String& ,
50 G4ProcessType aType = f << 65 G4ProcessType aType = fNotDefined );
51 G4VDiscreteProcess(G4VDiscreteProcess&); << 66 G4VDiscreteProcess(G4VDiscreteProcess &);
52 67
53 virtual ~G4VDiscreteProcess(); << 68 virtual ~G4VDiscreteProcess();
54 69
55 G4VDiscreteProcess& operator=(const G4VDis << 70 public :// with description
56 << 71 virtual G4double PostStepGetPhysicalInteractionLength(
57 virtual G4double PostStepGetPhysicalIntera <<
58 const G4Track& tr 72 const G4Track& track,
59 G4double previous << 73 G4double previousStepSize,
60 G4ForceCondition* << 74 G4ForceCondition* condition
61 ); << 75 );
62 << 76
63 virtual G4VParticleChange* PostStepDoIt( << 77 virtual G4VParticleChange* PostStepDoIt(
64 const G4Track& , << 78 const G4Track& ,
65 const G4Step& << 79 const G4Step&
66 ); << 80 );
67 81
68 // No operation in AtRestDoIt and AlongSte << 82 // no operation in AtRestDoIt and AlongStepDoIt
69 // << 83 virtual G4double AlongStepGetPhysicalInteractionLength(
70 virtual G4double AlongStepGetPhysicalInter <<
71 const G4Track&, 84 const G4Track&,
72 G4double , << 85 G4double ,
73 G4double , << 86 G4double ,
74 G4double& , << 87 G4double& ,
75 G4GPILSelection* 88 G4GPILSelection*
76 ) { return -1.0; } << 89 ){ return -1.0; };
77 <<
78 virtual G4double AtRestGetPhysicalInteract <<
79 const G4Track& , <<
80 G4ForceCondition* <<
81 ) { return -1.0; } <<
82 90
83 // No operation in AtRestDoIt and AlongSte << 91 virtual G4double AtRestGetPhysicalInteractionLength(
84 // <<
85 virtual G4VParticleChange* AtRestDoIt( <<
86 const G4Track& , 92 const G4Track& ,
87 const G4Step& << 93 G4ForceCondition*
88 ) { return nullptr << 94 ) { return -1.0; };
89 95
90 virtual G4VParticleChange* AlongStepDoIt( << 96 // no operation in AtRestDoIt and AlongStepDoIt
91 const G4Track& , << 97 virtual G4VParticleChange* AtRestDoIt(
92 const G4Step& << 98 const G4Track& ,
93 ) { return nullptr << 99 const G4Step&
94 << 100 ) {return 0;};
95 // cross section in the unit of inverse le << 101
96 // function of kinetic energy << 102 virtual G4VParticleChange* AlongStepDoIt(
97 virtual G4double GetCrossSection( << 103 const G4Track& ,
98 const G4double, << 104 const G4Step&
99 const G4MaterialC << 105 ) {return 0;};
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; } <<
107 106
108 protected: << 107 protected:// with description
109 << 108 virtual G4double GetMeanFreePath(const G4Track& aTrack,
110 virtual G4double GetMeanFreePath( const G4 << 109 G4double previousStepSize,
111 G4double << 110 G4ForceCondition* condition
112 G4ForceC << 111 )=0;
113 // Calculates from the macroscopic cross << 112 // Calculates from the macroscopic cross section a mean
114 // free path, the value is returned in u << 113 // free path, the value is returned in units of distance.
115 114
116 private: 115 private:
>> 116 // hide default constructor and assignment operator as private
>> 117 G4VDiscreteProcess();
>> 118 G4VDiscreteProcess & operator=(const G4VDiscreteProcess &right);
117 119
118 G4VDiscreteProcess(); <<
119 // Hidden default constructor <<
120 }; 120 };
121 121
>> 122 // -----------------------------------------
>> 123 // inlined function members implementation
>> 124 // -----------------------------------------
>> 125 #include "G4Step.hh"
>> 126 #include "G4Track.hh"
>> 127 #include "G4MaterialTable.hh"
>> 128 #include "G4VParticleChange.hh"
>> 129
>> 130 inline G4double G4VDiscreteProcess::PostStepGetPhysicalInteractionLength(
>> 131 const G4Track& track,
>> 132 G4double previousStepSize,
>> 133 G4ForceCondition* condition
>> 134 )
>> 135 {
>> 136 if ( (previousStepSize <=0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
>> 137 // beggining of tracking (or just after DoIt of this process)
>> 138 ResetNumberOfInteractionLengthLeft();
>> 139 } else {
>> 140 // subtract NumberOfInteractionLengthLeft
>> 141 SubtractNumberOfInteractionLengthLeft(previousStepSize);
>> 142 if(theNumberOfInteractionLengthLeft<perMillion)
>> 143 theNumberOfInteractionLengthLeft=0.;
>> 144 }
>> 145
>> 146 // condition is set to "Not Forced"
>> 147 *condition = NotForced;
>> 148
>> 149 // get mean free path
>> 150 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
>> 151
>> 152 #ifdef G4VERBOSE
>> 153 if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
>> 154 G4cout << "G4VDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 155 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 156 track.GetDynamicParticle()->DumpInfo();
>> 157 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 158 G4cout << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
>> 159 }
>> 160 #endif
>> 161
>> 162
>> 163 G4double value = theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 164 #ifdef G4VERBOSE
>> 165 if (verboseLevel>1){
>> 166 G4cout << "G4VDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 167 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 168 track.GetDynamicParticle()->DumpInfo();
>> 169 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 170 G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
>> 171 }
>> 172 #endif
>> 173 return value;
>> 174 }
>> 175
>> 176 inline G4VParticleChange* G4VDiscreteProcess::PostStepDoIt(
>> 177 const G4Track& ,
>> 178 const G4Step&
>> 179 )
>> 180 {
>> 181 // clear NumberOfInteractionLengthLeft
>> 182 ClearNumberOfInteractionLengthLeft();
>> 183
>> 184 return pParticleChange;
>> 185 }
>> 186
>> 187
122 #endif 188 #endif
>> 189
>> 190
>> 191
123 192