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25 // 22 //
26 // G4VRestContinuousDiscreteProcess <<
27 // 23 //
28 // Class description: << 24 // $Id: G4VRestContinuousDiscreteProcess.hh,v 1.7 2003/03/25 06:22:23 kurasige Exp $
>> 25 // GEANT4 tag $Name: geant4-05-01 $
>> 26 //
>> 27 //
>> 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 // fix bugs in GetGPILSelection() 24 Jan. 1998 H.Kurashige
>> 40 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
>> 41 // Fixed a bug in PostStepGetPhysicalInteractionLength
>> 42 // 15 Apr. 2002 H.Kurashige
29 // 43 //
30 // Abstract class which defines the public beh <<
31 // continuous and discrete physics interaction <<
32 44
33 // Authors: << 45 #ifndef G4VRestContinuousDiscreteProcess_h
34 // - 2 December 1995, G.Cosmo - First implemen << 46 #define G4VRestContinuousDiscreteProcess_h 1
35 // - 8 January 1997, H.Kurashige - New Physics <<
36 // ------------------------------------------- <<
37 #ifndef G4VRestContinuousDiscreteProcess_hh <<
38 #define G4VRestContinuousDiscreteProcess_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
45 class G4VRestContinuousDiscreteProcess : publi 53 class G4VRestContinuousDiscreteProcess : public G4VProcess
46 { 54 {
>> 55 // Abstract class which defines the public behavior of
>> 56 // discrete physics interactions.
47 public: 57 public:
48 58
49 G4VRestContinuousDiscreteProcess(const G4S << 59 G4VRestContinuousDiscreteProcess(const G4String& ,
50 G4Process << 60 G4ProcessType aType = fNotDefined );
51 G4VRestContinuousDiscreteProcess(G4VRestCo << 61 G4VRestContinuousDiscreteProcess(G4VRestContinuousDiscreteProcess &);
>> 62
>> 63 virtual ~G4VRestContinuousDiscreteProcess();
52 64
53 virtual ~G4VRestContinuousDiscreteProcess( <<
54 65
55 G4VRestContinuousDiscreteProcess& operator << 66 public :// with description
>> 67 virtual G4double PostStepGetPhysicalInteractionLength(
>> 68 const G4Track& track,
>> 69 G4double previousStepSize,
>> 70 G4ForceCondition* condition
>> 71 );
>> 72
>> 73 virtual G4VParticleChange* PostStepDoIt(
>> 74 const G4Track& ,
>> 75 const G4Step&
>> 76 );
56 77
57 virtual G4double PostStepGetPhysicalIntera << 78 virtual G4double AlongStepGetPhysicalInteractionLength(
58 const G4Track& tr 79 const G4Track& track,
>> 80 G4double previousStepSize,
>> 81 G4double currentMinimumStep,
>> 82 G4double& currentSafety,
>> 83 G4GPILSelection* selection
>> 84 );
>> 85
>> 86 virtual G4VParticleChange* AlongStepDoIt(
>> 87 const G4Track& ,
>> 88 const G4Step&
>> 89 );
>> 90
>> 91 virtual G4double AtRestGetPhysicalInteractionLength(
>> 92 const G4Track& ,
>> 93 G4ForceCondition*
>> 94 );
>> 95
>> 96 virtual G4VParticleChange* AtRestDoIt(
>> 97 const G4Track& ,
>> 98 const G4Step&
>> 99 );
>> 100
>> 101 protected: // with description
>> 102 virtual G4double GetMeanLifeTime(const G4Track& aTrack,G4ForceCondition* condition)=0;
>> 103 // Calculates the mean life-time (i.e. for decays) of the
>> 104 // particle at rest due to the occurence of the given process,
>> 105 // or converts the probability of interaction (i.e. for
>> 106 // annihilation) into the life-time of the particle for the
>> 107 // occurence of the given process.
>> 108
>> 109 virtual G4double GetContinuousStepLimit(const G4Track& aTrack,
>> 110 G4double previousStepSize,
>> 111 G4double currentMinimumStep,
>> 112 G4double& currentSafety
>> 113 )=0;
>> 114 private:
>> 115 // this is the returnd value of G4GPILSelection in
>> 116 // the arguments of AlongStepGPIL()
>> 117 G4GPILSelection valueGPILSelection;
>> 118
>> 119 protected: // with description
>> 120 // these two methods are set/get methods for valueGPILSelection
>> 121 void SetGPILSelection(G4GPILSelection selection)
>> 122 { valueGPILSelection = selection;};
>> 123
>> 124 G4GPILSelection GetGPILSelection() const{return valueGPILSelection;};
>> 125
>> 126 protected: // with description
>> 127 virtual G4double GetMeanFreePath(const G4Track& aTrack,
59 G4double previo 128 G4double previousStepSize,
60 G4ForceCondition* 129 G4ForceCondition* condition
61 ); << 130 )=0;
>> 131 // Calculates from the macroscopic cross section a mean
>> 132 // free path, the value is returned in units of distance.
>> 133
>> 134 private:
>> 135 // hide default constructor and assignment operator as private
>> 136 G4VRestContinuousDiscreteProcess();
>> 137 G4VRestContinuousDiscreteProcess & operator=(const G4VRestContinuousDiscreteProcess &right);
62 138
63 virtual G4VParticleChange* PostStepDoIt( << 139 };
64 const G4Track& , << 140
65 const G4Step& << 141 // -----------------------------------------
66 ); << 142 // inlined function members implementation
>> 143 // -----------------------------------------
>> 144 #include "G4Step.hh"
>> 145 #include "G4Track.hh"
>> 146 #include "G4MaterialTable.hh"
>> 147 #include "G4VParticleChange.hh"
>> 148
>> 149 inline G4double G4VRestContinuousDiscreteProcess::AtRestGetPhysicalInteractionLength(
>> 150 const G4Track& track,
>> 151 G4ForceCondition* condition
>> 152 )
>> 153 {
>> 154 // beggining of tracking
>> 155 ResetNumberOfInteractionLengthLeft();
>> 156
>> 157 // condition is set to "Not Forced"
>> 158 *condition = NotForced;
67 159
68 virtual G4double AlongStepGetPhysicalInter << 160 // get mean life time
>> 161 currentInteractionLength = GetMeanLifeTime(track, condition);
>> 162
>> 163 #ifdef G4VERBOSE
>> 164 if ((currentInteractionLength <0.0) || (verboseLevel>2)){
>> 165 G4cout << "G4VRestContinuousDiscreteProcess::AtRestGetPhysicalInteractionLength ";
>> 166 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 167 track.GetDynamicParticle()->DumpInfo();
>> 168 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 169 G4cout << "MeanLifeTime = " << currentInteractionLength/ns << "[ns]" <<G4endl;
>> 170 }
>> 171 #endif
>> 172
>> 173 return theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 174 }
>> 175
>> 176
>> 177 inline G4VParticleChange* G4VRestContinuousDiscreteProcess::AtRestDoIt(
>> 178 const G4Track&,
>> 179 const G4Step&
>> 180 )
>> 181 {
>> 182 // clear NumberOfInteractionLengthLeft
>> 183 ClearNumberOfInteractionLengthLeft();
>> 184
>> 185 return pParticleChange;
>> 186 }
>> 187
>> 188 inline G4double G4VRestContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength(
69 const G4Track& tr 189 const G4Track& track,
70 G4double previous << 190 G4double previousStepSize,
71 G4double currentM << 191 G4double currentMinimumStep,
72 G4double& current << 192 G4double& currentSafety,
73 G4GPILSelection* 193 G4GPILSelection* selection
74 ); << 194 )
>> 195 {
>> 196 // GPILSelection is set to defaule value of CandidateForSelection
>> 197 valueGPILSelection = CandidateForSelection;
75 198
76 virtual G4VParticleChange* AlongStepDoIt( << 199 // get Step limit proposed by the process
77 const G4Track& , << 200 G4double steplength = GetContinuousStepLimit(track,previousStepSize,currentMinimumStep, currentSafety);
78 const G4Step& <<
79 ); <<
80 <<
81 virtual G4double AtRestGetPhysicalInteract <<
82 const G4Track& , <<
83 G4ForceCondition* <<
84 ); <<
85 201
86 virtual G4VParticleChange* AtRestDoIt( << 202 // set return value for G4GPILSelection
87 const G4Track& , << 203 *selection = valueGPILSelection;
88 const G4Step& <<
89 ); <<
90 204
91 protected: << 205 #ifdef G4VERBOSE
>> 206 if (verboseLevel>1){
>> 207 G4cout << "G4VRestContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength ";
>> 208 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 209 track.GetDynamicParticle()->DumpInfo();
>> 210 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 211 G4cout << "IntractionLength= " << steplength/cm <<"[cm] " <<G4endl;
>> 212 }
>> 213 #endif
>> 214 return steplength ;
>> 215 }
92 216
93 virtual G4double GetMeanLifeTime( const G4 << 217 inline G4VParticleChange* G4VRestContinuousDiscreteProcess::AlongStepDoIt(
94 G4ForceC << 218 const G4Track& ,
95 // Calculates the mean life-time (i.e. f << 219 const G4Step&
96 // particle at rest due to the occurrenc << 220 )
97 // or converts the probability of intera << 221 {
98 // annihilation) into the life-time of t << 222 return pParticleChange;
99 // occurrence of the given process << 223 }
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 <<
111 224
112 inline void SetGPILSelection(G4GPILSelecti << 225 inline G4double G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength(
113 { valueGPILSelection = selection; } << 226 const G4Track& track,
>> 227 G4double previousStepSize,
>> 228 G4ForceCondition* condition
>> 229 )
>> 230 {
>> 231 if ( (previousStepSize <=0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
>> 232 // beggining of tracking (or just after DoIt of this process)
>> 233 ResetNumberOfInteractionLengthLeft();
>> 234 } else {
>> 235 // subtract NumberOfInteractionLengthLeft
>> 236 SubtractNumberOfInteractionLengthLeft(previousStepSize);
>> 237 if(theNumberOfInteractionLengthLeft<0.)
>> 238 theNumberOfInteractionLengthLeft=perMillion;
>> 239 }
>> 240
>> 241 // condition is set to "Not Forced"
>> 242 *condition = NotForced;
>> 243
>> 244 // get mean free path
>> 245 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
>> 246
>> 247 #ifdef G4VERBOSE
>> 248 if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
>> 249 G4cout << "G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 250 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 251 track.GetDynamicParticle()->DumpInfo();
>> 252 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 253 G4cout << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
>> 254 }
>> 255 #endif
114 256
115 inline G4GPILSelection GetGPILSelection() << 257 G4double value;
116 { return valueGPILSelection; } << 258 if (currentInteractionLength <DBL_MAX) {
>> 259 value = theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 260 } else {
>> 261 value = DBL_MAX;
>> 262 }
>> 263 #ifdef G4VERBOSE
>> 264 if (verboseLevel>1){
>> 265 G4cout << "G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 266 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 267 track.GetDynamicParticle()->DumpInfo();
>> 268 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 269 G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
>> 270 }
>> 271 #endif
>> 272 return value;
>> 273 }
117 274
118 private: << 275 inline G4VParticleChange* G4VRestContinuousDiscreteProcess::PostStepDoIt(
>> 276 const G4Track& ,
>> 277 const G4Step&
>> 278 )
>> 279 {
>> 280 // clear NumberOfInteractionLengthLeft
>> 281 ClearNumberOfInteractionLengthLeft();
119 282
120 G4VRestContinuousDiscreteProcess(); << 283 return pParticleChange;
121 // Hidden default constructor << 284 }
122 285
123 G4GPILSelection valueGPILSelection = Candi <<
124 // This is the returned value of G4GPILS <<
125 // the arguments of AlongStepGPIL() <<
126 }; <<
127 286
128 #endif 287 #endif
>> 288
129 289