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25 // 22 //
26 // G4VRestDiscreteProcess <<
27 // 23 //
28 // Class description: << 24 // $Id: G4VRestDiscreteProcess.hh,v 1.5 2001/07/11 10:08:18 gunter Exp $
>> 25 // GEANT4 tag $Name: geant4-04-00 $
29 // 26 //
30 // Abstract class which defines the public beh << 27 //
31 // rest + discrete physics interactions. << 28 // ------------------------------------------------------------
>> 29 // GEANT 4 class header file
>> 30 //
>> 31 //
>> 32 // Class Description
>> 33 // Abstract class which defines the public behavior of
>> 34 // rest + discrete physics interactions.
>> 35 //
>> 36 // ------------------------------------------------------------
>> 37 // New Physics scheme 8 Mar. 1997 H.Kurahige
>> 38 // ------------------------------------------------------------
>> 39 // modified 26 Mar. 1997 H.Kurahige
>> 40 // modified 16 Apr. 1997 L.Urban
>> 41 // modified 16 Dec. 1997 L.Urban
>> 42 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
32 43
33 // Authors: << 44
34 // - 2 December 1995, G.Cosmo - First implemen << 45 #ifndef G4VRestDiscreteProcess_h
35 // - 8 January 1997, H.Kurashige - New Physics << 46 #define G4VRestDiscreteProcess_h 1
36 // ------------------------------------------- <<
37 #ifndef G4VRestDiscreteProcess_hh <<
38 #define G4VRestDiscreteProcess_hh 1 <<
39 47
40 #include "globals.hh" 48 #include "globals.hh"
41 #include "G4ios.hh" 49 #include "G4ios.hh"
42 50
43 #include "G4VProcess.hh" 51 #include "G4VProcess.hh"
44 52
>> 53
45 class G4VRestDiscreteProcess : public G4VProce 54 class G4VRestDiscreteProcess : public G4VProcess
46 { 55 {
>> 56 // Abstract class which defines the public behavior of
>> 57 // rest + discrete physics interactions.
47 public: 58 public:
48 59
49 G4VRestDiscreteProcess(const G4String& , << 60 G4VRestDiscreteProcess(const G4String& ,
50 G4ProcessType aType = fNotDefined); << 61 G4ProcessType aType = fNotDefined );
51 G4VRestDiscreteProcess(G4VRestDiscreteProc << 62 G4VRestDiscreteProcess(G4VRestDiscreteProcess &);
52 63
53 virtual ~G4VRestDiscreteProcess(); << 64 virtual ~G4VRestDiscreteProcess();
54 65
55 G4VRestDiscreteProcess& operator=(const G4 << 66 public :// with description
56 << 67 virtual G4double PostStepGetPhysicalInteractionLength(
57 virtual G4double PostStepGetPhysicalIntera <<
58 const G4Track& tr 68 const G4Track& track,
59 G4double previousStepSize, << 69 G4double previousStepSize,
60 G4ForceCondition* condition 70 G4ForceCondition* condition
61 ); 71 );
62 72
63 virtual G4VParticleChange* PostStepDoIt( << 73 virtual G4VParticleChange* PostStepDoIt(
64 const G4Track& , 74 const G4Track& ,
65 const G4Step& 75 const G4Step&
66 ); 76 );
67 77
68 virtual G4double AtRestGetPhysicalInteract << 78 virtual G4double AtRestGetPhysicalInteractionLength(
69 const G4Track& , 79 const G4Track& ,
70 G4ForceCondition* 80 G4ForceCondition*
71 ); 81 );
72 82
73 virtual G4VParticleChange* AtRestDoIt( << 83 virtual G4VParticleChange* AtRestDoIt(
74 const G4Track& , 84 const G4Track& ,
75 const G4Step& 85 const G4Step&
76 ); 86 );
77 87
78 virtual G4double AlongStepGetPhysicalInter << 88 // no operation in AlongStepDoIt
>> 89 virtual G4double AlongStepGetPhysicalInteractionLength(
79 const G4Track&, 90 const G4Track&,
80 G4double , 91 G4double ,
81 G4double , 92 G4double ,
82 G4double& , 93 G4double& ,
83 G4GPILSelection* 94 G4GPILSelection*
84 ) { return -1.0; } << 95 ){ return -1.0; };
85 // No operation in AlongStepDoIt <<
86 96
87 virtual G4VParticleChange* AlongStepDoIt( << 97 // no operation in AlongStepDoIt
>> 98 virtual G4VParticleChange* AlongStepDoIt(
88 const G4Track& , 99 const G4Track& ,
89 const G4Step& 100 const G4Step&
90 ) { return 0; } << 101 ) {return 0;};
91 // No operation in AlongStepDoIt <<
92 102
93 protected: << 103 protected:// with description
94 << 104 virtual G4double GetMeanFreePath(const G4Track& aTrack,
95 virtual G4double GetMeanFreePath(const G4T << 105 G4double previousStepSize,
96 G4double << 106 G4ForceCondition* condition
97 G4ForceCo << 107 )=0;
98 // Calculates from the macroscopic cross << 108 // Calculates from the macroscopic cross section a mean
99 // free path, the value is returned in u << 109 // free path, the value is returned in units of distance.
100 << 110
101 virtual G4double GetMeanLifeTime(const G4T << 111 virtual G4double GetMeanLifeTime(const G4Track& aTrack,G4ForceCondition* condition)=0;
102 G4ForceCo << 112 // Calculates the mean life-time (i.e. for decays) of the
103 // Calculates the mean life-time (i.e. f << 113 // particle at rest due to the occurence of the given process,
104 // particle at rest due to the occurrenc << 114 // or converts the probability of interaction (i.e. for
105 // or converts the probability of intera << 115 // annihilation) into the life-time of the particle for the
106 // annihilation) into the life-time of t << 116 // occurence of the given process.
107 // occurrence of the given process <<
108 117
109 private: 118 private:
>> 119 // hide default constructor and assignment operator as private
>> 120 G4VRestDiscreteProcess();
>> 121 G4VRestDiscreteProcess & operator=(const G4VRestDiscreteProcess &right);
110 122
111 G4VRestDiscreteProcess(); <<
112 // Hidden default constructor <<
113 }; 123 };
114 124
>> 125 // -----------------------------------------
>> 126 // inlined function members implementation
>> 127 // -----------------------------------------
>> 128 #include "Randomize.hh"
>> 129 #include "G4Step.hh"
>> 130 #include "G4Track.hh"
>> 131 #include "G4MaterialTable.hh"
>> 132 #include "G4VParticleChange.hh"
>> 133
>> 134 inline
>> 135 G4double G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength(
>> 136 const G4Track& track,
>> 137 G4double previousStepSize,
>> 138 G4ForceCondition* condition
>> 139 )
>> 140 {
>> 141 if ( (previousStepSize <=0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
>> 142 // beggining of tracking (or just after DoIt of this process)
>> 143 ResetNumberOfInteractionLengthLeft();
>> 144 } else {
>> 145 // subtract NumberOfInteractionLengthLeft
>> 146 SubtractNumberOfInteractionLengthLeft(previousStepSize);
>> 147 if(theNumberOfInteractionLengthLeft<perMillion)
>> 148 theNumberOfInteractionLengthLeft=0.;
>> 149 }
>> 150
>> 151 // condition is set to "Not Forced"
>> 152 *condition = NotForced;
>> 153
>> 154 // get mean free path
>> 155 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
>> 156
>> 157 #ifdef G4VERBOSE
>> 158 if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
>> 159 G4cout << "G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 160 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 161 track.GetDynamicParticle()->DumpInfo();
>> 162 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 163 G4cout << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
>> 164 }
>> 165 #endif
>> 166
>> 167 G4double value = theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 168 #ifdef G4VERBOSE
>> 169 if (verboseLevel>1){
>> 170 G4cout << "G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 171 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 172 track.GetDynamicParticle()->DumpInfo();
>> 173 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 174 G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
>> 175 }
>> 176 #endif
>> 177 return value;
>> 178 }
>> 179
>> 180 inline G4VParticleChange* G4VRestDiscreteProcess::PostStepDoIt(
>> 181 const G4Track& ,
>> 182 const G4Step&
>> 183 )
>> 184 {
>> 185 // reset NumberOfInteractionLengthLeft
>> 186 ClearNumberOfInteractionLengthLeft();
>> 187
>> 188 return pParticleChange;
>> 189 }
>> 190
>> 191 inline G4double G4VRestDiscreteProcess::AtRestGetPhysicalInteractionLength(
>> 192 const G4Track& track,
>> 193 G4ForceCondition* condition
>> 194 )
>> 195 {
>> 196 // beggining of tracking
>> 197 ResetNumberOfInteractionLengthLeft();
>> 198
>> 199 // condition is set to "Not Forced"
>> 200 *condition = NotForced;
>> 201
>> 202 // get mean life time
>> 203 currentInteractionLength = GetMeanLifeTime(track, condition);
>> 204
>> 205 #ifdef G4VERBOSE
>> 206 if ((currentInteractionLength <0.0) || (verboseLevel>2)){
>> 207 G4cout << "G4VRestDiscreteProcess::AtRestGetPhysicalInteractionLength ";
>> 208 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 209 track.GetDynamicParticle()->DumpInfo();
>> 210 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 211 G4cout << "MeanLifeTime = " << currentInteractionLength/ns << "[ns]" <<G4endl;
>> 212 }
>> 213 #endif
>> 214
>> 215 return theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 216 }
>> 217
>> 218
>> 219 inline G4VParticleChange* G4VRestDiscreteProcess::AtRestDoIt(
>> 220 const G4Track&,
>> 221 const G4Step&
>> 222 )
>> 223 {
>> 224 // clear NumberOfInteractionLengthLeft
>> 225 ClearNumberOfInteractionLengthLeft();
>> 226
>> 227 return pParticleChange;
>> 228 }
>> 229
>> 230
>> 231
115 #endif 232 #endif
>> 233
116 234