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25 // 22 //
26 // G4VRestContinuousDiscreteProcess <<
27 // 23 //
28 // Class description: << 24 // $Id: G4VRestContinuousDiscreteProcess.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 // continuous and discrete physics interaction << 28 // ------------------------------------------------------------
>> 29 // GEANT 4 class header file
>> 30 //
>> 31 //
>> 32 // Class Description
>> 33 // Abstract class which defines the public behavior of
>> 34 // continuous and 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 AlongStepGPIL etc. 17 Dec. 1997 H.Kurashige
>> 42 // fix bugs in GetGPILSelection() 24 Jan. 1998 H.Kurashige
>> 43 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
32 44
33 // Authors: << 45
34 // - 2 December 1995, G.Cosmo - First implemen << 46 #ifndef G4VRestContinuousDiscreteProcess_h
35 // - 8 January 1997, H.Kurashige - New Physics << 47 #define G4VRestContinuousDiscreteProcess_h 1
36 // ------------------------------------------- <<
37 #ifndef G4VRestContinuousDiscreteProcess_hh <<
38 #define G4VRestContinuousDiscreteProcess_hh 1 <<
39 48
40 #include "globals.hh" 49 #include "globals.hh"
41 #include "G4ios.hh" 50 #include "G4ios.hh"
42 51
43 #include "G4VProcess.hh" 52 #include "G4VProcess.hh"
44 53
45 class G4VRestContinuousDiscreteProcess : publi 54 class G4VRestContinuousDiscreteProcess : public G4VProcess
46 { 55 {
>> 56 // Abstract class which defines the public behavior of
>> 57 // discrete physics interactions.
47 public: 58 public:
48 59
49 G4VRestContinuousDiscreteProcess(const G4S << 60 G4VRestContinuousDiscreteProcess(const G4String& ,
50 G4Process << 61 G4ProcessType aType = fNotDefined );
51 G4VRestContinuousDiscreteProcess(G4VRestCo << 62 G4VRestContinuousDiscreteProcess(G4VRestContinuousDiscreteProcess &);
>> 63
>> 64 virtual ~G4VRestContinuousDiscreteProcess();
52 65
53 virtual ~G4VRestContinuousDiscreteProcess( <<
54 66
55 G4VRestContinuousDiscreteProcess& operator << 67 public :// with description
>> 68 virtual G4double PostStepGetPhysicalInteractionLength(
>> 69 const G4Track& track,
>> 70 G4double previousStepSize,
>> 71 G4ForceCondition* condition
>> 72 );
>> 73
>> 74 virtual G4VParticleChange* PostStepDoIt(
>> 75 const G4Track& ,
>> 76 const G4Step&
>> 77 );
56 78
57 virtual G4double PostStepGetPhysicalIntera << 79 virtual G4double AlongStepGetPhysicalInteractionLength(
58 const G4Track& tr 80 const G4Track& track,
>> 81 G4double previousStepSize,
>> 82 G4double currentMinimumStep,
>> 83 G4double& currentSafety,
>> 84 G4GPILSelection* selection
>> 85 );
>> 86
>> 87 virtual G4VParticleChange* AlongStepDoIt(
>> 88 const G4Track& ,
>> 89 const G4Step&
>> 90 );
>> 91
>> 92 virtual G4double AtRestGetPhysicalInteractionLength(
>> 93 const G4Track& ,
>> 94 G4ForceCondition*
>> 95 );
>> 96
>> 97 virtual G4VParticleChange* AtRestDoIt(
>> 98 const G4Track& ,
>> 99 const G4Step&
>> 100 );
>> 101
>> 102 protected: // with description
>> 103 virtual G4double GetMeanLifeTime(const G4Track& aTrack,G4ForceCondition* condition)=0;
>> 104 // Calculates the mean life-time (i.e. for decays) of the
>> 105 // particle at rest due to the occurence of the given process,
>> 106 // or converts the probability of interaction (i.e. for
>> 107 // annihilation) into the life-time of the particle for the
>> 108 // occurence of the given process.
>> 109
>> 110 virtual G4double GetContinuousStepLimit(const G4Track& aTrack,
>> 111 G4double previousStepSize,
>> 112 G4double currentMinimumStep,
>> 113 G4double& currentSafety
>> 114 )=0;
>> 115 private:
>> 116 // this is the returnd value of G4GPILSelection in
>> 117 // the arguments of AlongStepGPIL()
>> 118 G4GPILSelection valueGPILSelection;
>> 119
>> 120 protected: // with description
>> 121 // these two methods are set/get methods for valueGPILSelection
>> 122 void SetGPILSelection(G4GPILSelection selection)
>> 123 { valueGPILSelection = selection;};
>> 124
>> 125 G4GPILSelection GetGPILSelection() const{return valueGPILSelection;};
>> 126
>> 127 protected: // with description
>> 128 virtual G4double GetMeanFreePath(const G4Track& aTrack,
59 G4double previo 129 G4double previousStepSize,
60 G4ForceCondition* 130 G4ForceCondition* condition
61 ); << 131 )=0;
>> 132 // Calculates from the macroscopic cross section a mean
>> 133 // free path, the value is returned in units of distance.
>> 134
>> 135 private:
>> 136 // hide default constructor and assignment operator as private
>> 137 G4VRestContinuousDiscreteProcess();
>> 138 G4VRestContinuousDiscreteProcess & operator=(const G4VRestContinuousDiscreteProcess &right);
62 139
63 virtual G4VParticleChange* PostStepDoIt( << 140 };
64 const G4Track& , << 141
65 const G4Step& << 142 // -----------------------------------------
66 ); << 143 // inlined function members implementation
>> 144 // -----------------------------------------
>> 145 #include "G4Step.hh"
>> 146 #include "G4Track.hh"
>> 147 #include "G4MaterialTable.hh"
>> 148 #include "G4VParticleChange.hh"
>> 149
>> 150 inline G4double G4VRestContinuousDiscreteProcess::AtRestGetPhysicalInteractionLength(
>> 151 const G4Track& track,
>> 152 G4ForceCondition* condition
>> 153 )
>> 154 {
>> 155 // beggining of tracking
>> 156 ResetNumberOfInteractionLengthLeft();
>> 157
>> 158 // condition is set to "Not Forced"
>> 159 *condition = NotForced;
67 160
68 virtual G4double AlongStepGetPhysicalInter << 161 // get mean life time
>> 162 currentInteractionLength = GetMeanLifeTime(track, condition);
>> 163
>> 164 #ifdef G4VERBOSE
>> 165 if ((currentInteractionLength <0.0) || (verboseLevel>2)){
>> 166 G4cout << "G4VRestContinuousDiscreteProcess::AtRestGetPhysicalInteractionLength ";
>> 167 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 168 track.GetDynamicParticle()->DumpInfo();
>> 169 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 170 G4cout << "MeanLifeTime = " << currentInteractionLength/ns << "[ns]" <<G4endl;
>> 171 }
>> 172 #endif
>> 173
>> 174 return theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 175 }
>> 176
>> 177
>> 178 inline G4VParticleChange* G4VRestContinuousDiscreteProcess::AtRestDoIt(
>> 179 const G4Track&,
>> 180 const G4Step&
>> 181 )
>> 182 {
>> 183 // clear NumberOfInteractionLengthLeft
>> 184 ClearNumberOfInteractionLengthLeft();
>> 185
>> 186 return pParticleChange;
>> 187 }
>> 188
>> 189 inline G4double G4VRestContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength(
69 const G4Track& tr 190 const G4Track& track,
70 G4double previous << 191 G4double previousStepSize,
71 G4double currentM << 192 G4double currentMinimumStep,
72 G4double& current << 193 G4double& currentSafety,
73 G4GPILSelection* 194 G4GPILSelection* selection
74 ); << 195 )
>> 196 {
>> 197 // GPILSelection is set to defaule value of CandidateForSelection
>> 198 valueGPILSelection = CandidateForSelection;
75 199
76 virtual G4VParticleChange* AlongStepDoIt( << 200 // get Step limit proposed by the process
77 const G4Track& , << 201 G4double steplength = GetContinuousStepLimit(track,previousStepSize,currentMinimumStep, currentSafety);
78 const G4Step& <<
79 ); <<
80 <<
81 virtual G4double AtRestGetPhysicalInteract <<
82 const G4Track& , <<
83 G4ForceCondition* <<
84 ); <<
85 202
86 virtual G4VParticleChange* AtRestDoIt( << 203 // set return value for G4GPILSelection
87 const G4Track& , << 204 *selection = valueGPILSelection;
88 const G4Step& <<
89 ); <<
90 205
91 protected: << 206 #ifdef G4VERBOSE
>> 207 if (verboseLevel>1){
>> 208 G4cout << "G4VRestContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength ";
>> 209 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 210 track.GetDynamicParticle()->DumpInfo();
>> 211 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 212 G4cout << "IntractionLength= " << steplength/cm <<"[cm] " <<G4endl;
>> 213 }
>> 214 #endif
>> 215 return steplength ;
>> 216 }
92 217
93 virtual G4double GetMeanLifeTime( const G4 << 218 inline G4VParticleChange* G4VRestContinuousDiscreteProcess::AlongStepDoIt(
94 G4ForceC << 219 const G4Track& ,
95 // Calculates the mean life-time (i.e. f << 220 const G4Step&
96 // particle at rest due to the occurrenc << 221 )
97 // or converts the probability of intera << 222 {
98 // annihilation) into the life-time of t << 223 return pParticleChange;
99 // occurrence of the given process << 224 }
100 <<
101 virtual G4double GetContinuousStepLimit( c <<
102 G <<
103 G <<
104 G <<
105 <<
106 virtual G4double GetMeanFreePath( const G4 <<
107 G4double <<
108 G4ForceC <<
109 // Calculates from the macroscopic cross <<
110 // free path, the value is returned in u <<
111 225
112 inline void SetGPILSelection(G4GPILSelecti << 226 inline G4double G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength(
113 { valueGPILSelection = selection; } << 227 const G4Track& track,
>> 228 G4double previousStepSize,
>> 229 G4ForceCondition* condition
>> 230 )
>> 231 {
>> 232 if ( (previousStepSize <=0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
>> 233 // beggining of tracking (or just after DoIt of this process)
>> 234 ResetNumberOfInteractionLengthLeft();
>> 235 } else {
>> 236 // subtract NumberOfInteractionLengthLeft
>> 237 SubtractNumberOfInteractionLengthLeft(previousStepSize);
>> 238 if(theNumberOfInteractionLengthLeft<perMillion)
>> 239 theNumberOfInteractionLengthLeft=0.;
>> 240 }
>> 241
>> 242 // condition is set to "Not Forced"
>> 243 *condition = NotForced;
>> 244
>> 245 // get mean free path
>> 246 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
>> 247
>> 248 #ifdef G4VERBOSE
>> 249 if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
>> 250 G4cout << "G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 251 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 252 track.GetDynamicParticle()->DumpInfo();
>> 253 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 254 G4cout << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
>> 255 }
>> 256 #endif
114 257
115 inline G4GPILSelection GetGPILSelection() << 258 G4double value = theNumberOfInteractionLengthLeft * currentInteractionLength;
116 { return valueGPILSelection; } << 259 #ifdef G4VERBOSE
>> 260 if (verboseLevel>1){
>> 261 G4cout << "G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 262 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 263 track.GetDynamicParticle()->DumpInfo();
>> 264 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 265 G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
>> 266 }
>> 267 #endif
>> 268 return value;
>> 269 }
117 270
118 private: << 271 inline G4VParticleChange* G4VRestContinuousDiscreteProcess::PostStepDoIt(
>> 272 const G4Track& ,
>> 273 const G4Step&
>> 274 )
>> 275 {
>> 276 // clear NumberOfInteractionLengthLeft
>> 277 ClearNumberOfInteractionLengthLeft();
119 278
120 G4VRestContinuousDiscreteProcess(); << 279 return pParticleChange;
121 // Hidden default constructor << 280 }
122 281
123 G4GPILSelection valueGPILSelection = Candi <<
124 // This is the returned value of G4GPILS <<
125 // the arguments of AlongStepGPIL() <<
126 }; <<
127 282
128 #endif 283 #endif
>> 284
129 285