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25 // 22 //
26 // G4VDiscreteProcess << 23
>> 24 //
>> 25 // $Id: G4VDiscreteProcess.hh,v 1.7 2003/03/25 06:22:23 kurasige Exp $
>> 26 // GEANT4 tag $Name: geant4-07-01 $
>> 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.
>> 39 //
>> 40 // ------------------------------------------------------------
>> 41 // New Physics scheme 18 Dec. 1996 H.Kurahige
>> 42 // ------------------------------------------------------------
>> 43 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
>> 44 // Fixed a bug in PostStepGetPhysicalInteractionLength
>> 45 // 15 Apr. 2002 H.Kurashige
29 // 46 //
30 // Abstract class which defines the public beh <<
31 // discrete physics interactions. <<
32 47
33 // Authors: << 48 #ifndef G4VDiscreteProcess_h
34 // - 2 December 1995, G.Cosmo - First implemen << 49 #define G4VDiscreteProcess_h 1
35 // - 18 December 1996, H.Kurashige - New Physi <<
36 // ------------------------------------------- <<
37 #ifndef G4VDiscreteProcess_hh <<
38 #define G4VDiscreteProcess_hh 1 <<
39 50
40 #include "globals.hh" 51 #include "globals.hh"
41 #include "G4ios.hh" 52 #include "G4ios.hh"
42 53
43 #include "G4VProcess.hh" 54 #include "G4VProcess.hh"
44 55
45 class G4VDiscreteProcess : public G4VProcess 56 class G4VDiscreteProcess : public G4VProcess
46 { 57 {
>> 58 // Abstract class which defines the public behavior of
>> 59 // discrete physics interactions.
47 public: 60 public:
48 61
49 G4VDiscreteProcess(const G4String& aName, << 62 G4VDiscreteProcess(const G4String& ,
50 G4ProcessType aType = f << 63 G4ProcessType aType = fNotDefined );
51 G4VDiscreteProcess(G4VDiscreteProcess&); << 64 G4VDiscreteProcess(G4VDiscreteProcess &);
52 <<
53 virtual ~G4VDiscreteProcess(); <<
54 65
55 G4VDiscreteProcess& operator=(const G4VDis << 66 virtual ~G4VDiscreteProcess();
56 67
57 virtual G4double PostStepGetPhysicalIntera << 68 public :// with description
>> 69 virtual G4double PostStepGetPhysicalInteractionLength(
58 const G4Track& tr 70 const G4Track& track,
59 G4double previous << 71 G4double previousStepSize,
60 G4ForceCondition* << 72 G4ForceCondition* condition
61 ); << 73 );
>> 74
>> 75 virtual G4VParticleChange* PostStepDoIt(
>> 76 const G4Track& ,
>> 77 const G4Step&
>> 78 );
62 79
63 virtual G4VParticleChange* PostStepDoIt( << 80 // no operation in AtRestDoIt and AlongStepDoIt
64 const G4Track& , << 81 virtual G4double AlongStepGetPhysicalInteractionLength(
65 const G4Step& <<
66 ); <<
67 <<
68 // No operation in AtRestDoIt and AlongSte <<
69 // <<
70 virtual G4double AlongStepGetPhysicalInter <<
71 const G4Track&, 82 const G4Track&,
72 G4double , << 83 G4double ,
73 G4double , << 84 G4double ,
74 G4double& , << 85 G4double& ,
75 G4GPILSelection* 86 G4GPILSelection*
76 ) { return -1.0; } << 87 ){ return -1.0; };
77 <<
78 virtual G4double AtRestGetPhysicalInteract <<
79 const G4Track& , <<
80 G4ForceCondition* <<
81 ) { return -1.0; } <<
82 88
83 // No operation in AtRestDoIt and AlongSte << 89 virtual G4double AtRestGetPhysicalInteractionLength(
84 // <<
85 virtual G4VParticleChange* AtRestDoIt( <<
86 const G4Track& , 90 const G4Track& ,
87 const G4Step& << 91 G4ForceCondition*
88 ) { return nullptr << 92 ) { return -1.0; };
89 93
90 virtual G4VParticleChange* AlongStepDoIt( << 94 // no operation in AtRestDoIt and AlongStepDoIt
91 const G4Track& , << 95 virtual G4VParticleChange* AtRestDoIt(
92 const G4Step& << 96 const G4Track& ,
93 ) { return nullptr << 97 const G4Step&
94 << 98 ) {return 0;};
95 // cross section in the unit of inverse le << 99
96 // function of kinetic energy << 100 virtual G4VParticleChange* AlongStepDoIt(
97 virtual G4double GetCrossSection( << 101 const G4Track& ,
98 const G4double, << 102 const G4Step&
99 const G4MaterialC << 103 ) {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; } <<
107 104
108 protected: << 105 protected:// with description
109 << 106 virtual G4double GetMeanFreePath(const G4Track& aTrack,
110 virtual G4double GetMeanFreePath( const G4 << 107 G4double previousStepSize,
111 G4double << 108 G4ForceCondition* condition
112 G4ForceC << 109 )=0;
113 // Calculates from the macroscopic cross << 110 // Calculates from the macroscopic cross section a mean
114 // free path, the value is returned in u << 111 // free path, the value is returned in units of distance.
115 112
116 private: 113 private:
>> 114 // hide default constructor and assignment operator as private
>> 115 G4VDiscreteProcess();
>> 116 G4VDiscreteProcess & operator=(const G4VDiscreteProcess &right);
117 117
118 G4VDiscreteProcess(); <<
119 // Hidden default constructor <<
120 }; 118 };
121 119
>> 120 // -----------------------------------------
>> 121 // inlined function members implementation
>> 122 // -----------------------------------------
>> 123 #include "G4Step.hh"
>> 124 #include "G4Track.hh"
>> 125 #include "G4MaterialTable.hh"
>> 126 #include "G4VParticleChange.hh"
>> 127
>> 128 inline G4double G4VDiscreteProcess::PostStepGetPhysicalInteractionLength(
>> 129 const G4Track& track,
>> 130 G4double previousStepSize,
>> 131 G4ForceCondition* condition
>> 132 )
>> 133 {
>> 134 if ( (previousStepSize <=0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
>> 135 // beggining of tracking (or just after DoIt of this process)
>> 136 ResetNumberOfInteractionLengthLeft();
>> 137 } else {
>> 138 // subtract NumberOfInteractionLengthLeft
>> 139 SubtractNumberOfInteractionLengthLeft(previousStepSize);
>> 140 if(theNumberOfInteractionLengthLeft<0.)
>> 141 theNumberOfInteractionLengthLeft=perMillion;
>> 142 }
>> 143
>> 144 // condition is set to "Not Forced"
>> 145 *condition = NotForced;
>> 146
>> 147 // get mean free path
>> 148 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
>> 149
>> 150 #ifdef G4VERBOSE
>> 151 if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
>> 152 G4cout << "G4VDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 153 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 154 track.GetDynamicParticle()->DumpInfo();
>> 155 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 156 G4cout << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
>> 157 }
>> 158 #endif
>> 159
>> 160
>> 161 G4double value;
>> 162 if (currentInteractionLength <DBL_MAX) {
>> 163 value = theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 164 } else {
>> 165 value = DBL_MAX;
>> 166 }
>> 167 #ifdef G4VERBOSE
>> 168 if (verboseLevel>1){
>> 169 G4cout << "G4VDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 170 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 171 track.GetDynamicParticle()->DumpInfo();
>> 172 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 173 G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
>> 174 }
>> 175 #endif
>> 176 return value;
>> 177 }
>> 178
>> 179 inline G4VParticleChange* G4VDiscreteProcess::PostStepDoIt(
>> 180 const G4Track& ,
>> 181 const G4Step&
>> 182 )
>> 183 {
>> 184 // clear NumberOfInteractionLengthLeft
>> 185 ClearNumberOfInteractionLengthLeft();
>> 186
>> 187 return pParticleChange;
>> 188 }
>> 189
>> 190
122 #endif 191 #endif
>> 192
>> 193
>> 194
123 195