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25 // 25 //
26 // G4VRestContinuousDiscreteProcess <<
27 // 26 //
28 // Class description: << 27 // $Id: G4VRestContinuousDiscreteProcess.hh,v 1.8.4.1 2008/04/25 11:47:06 kurasige Exp $
>> 28 // GEANT4 tag $Name: geant4-09-01-patch-02 $
>> 29 //
>> 30 //
>> 31 // ------------------------------------------------------------
>> 32 // GEANT 4 class header file
>> 33 //
>> 34 //
>> 35 // Class Description
>> 36 // Abstract class which defines the public behavior of
>> 37 // continuous and discrete physics interactions.
>> 38 //
>> 39 // ------------------------------------------------------------
>> 40 // New Physics scheme 8 Mar. 1997 H.Kurahige
>> 41 // ------------------------------------------------------------
>> 42 // fix bugs in GetGPILSelection() 24 Jan. 1998 H.Kurashige
>> 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 // continuous and discrete physics interaction <<
32 47
33 // Authors: << 48 #ifndef G4VRestContinuousDiscreteProcess_h
34 // - 2 December 1995, G.Cosmo - First implemen << 49 #define G4VRestContinuousDiscreteProcess_h 1
35 // - 8 January 1997, H.Kurashige - New Physics <<
36 // ------------------------------------------- <<
37 #ifndef G4VRestContinuousDiscreteProcess_hh <<
38 #define G4VRestContinuousDiscreteProcess_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 G4VRestContinuousDiscreteProcess : publi 56 class G4VRestContinuousDiscreteProcess : public G4VProcess
46 { 57 {
>> 58 // Abstract class which defines the public behavior of
>> 59 // discrete physics interactions.
47 public: 60 public:
48 61
49 G4VRestContinuousDiscreteProcess(const G4S << 62 G4VRestContinuousDiscreteProcess(const G4String& ,
50 G4Process << 63 G4ProcessType aType = fNotDefined );
51 G4VRestContinuousDiscreteProcess(G4VRestCo << 64 G4VRestContinuousDiscreteProcess(G4VRestContinuousDiscreteProcess &);
52 65
53 virtual ~G4VRestContinuousDiscreteProcess( << 66 virtual ~G4VRestContinuousDiscreteProcess();
54 67
55 G4VRestContinuousDiscreteProcess& operator <<
56 68
57 virtual G4double PostStepGetPhysicalIntera << 69 public :// with description
>> 70 virtual G4double PostStepGetPhysicalInteractionLength(
58 const G4Track& tr 71 const G4Track& track,
59 G4double previo << 72 G4double previousStepSize,
60 G4ForceCondition* << 73 G4ForceCondition* condition
61 ); << 74 );
>> 75
>> 76 virtual G4VParticleChange* PostStepDoIt(
>> 77 const G4Track& ,
>> 78 const G4Step&
>> 79 );
62 80
63 virtual G4VParticleChange* PostStepDoIt( << 81 virtual G4double AlongStepGetPhysicalInteractionLength(
64 const G4Track& , <<
65 const G4Step& <<
66 ); <<
67 <<
68 virtual G4double AlongStepGetPhysicalInter <<
69 const G4Track& tr 82 const G4Track& track,
70 G4double previous << 83 G4double previousStepSize,
71 G4double currentM << 84 G4double currentMinimumStep,
72 G4double& current << 85 G4double& currentSafety,
73 G4GPILSelection* 86 G4GPILSelection* selection
74 ); << 87 );
75 88
76 virtual G4VParticleChange* AlongStepDoIt( << 89 virtual G4VParticleChange* AlongStepDoIt(
77 const G4Track& , << 90 const G4Track& ,
78 const G4Step& << 91 const G4Step&
79 ); << 92 );
80 93
81 virtual G4double AtRestGetPhysicalInteract << 94 virtual G4double AtRestGetPhysicalInteractionLength(
82 const G4Track& , 95 const G4Track& ,
83 G4ForceCondition* << 96 G4ForceCondition*
84 ); << 97 );
85 98
86 virtual G4VParticleChange* AtRestDoIt( << 99 virtual G4VParticleChange* AtRestDoIt(
87 const G4Track& , << 100 const G4Track& ,
88 const G4Step& << 101 const G4Step&
89 ); << 102 );
>> 103
>> 104 protected: // with description
>> 105 virtual G4double GetMeanLifeTime(const G4Track& aTrack,G4ForceCondition* condition)=0;
>> 106 // Calculates the mean life-time (i.e. for decays) of the
>> 107 // particle at rest due to the occurence of the given process,
>> 108 // or converts the probability of interaction (i.e. for
>> 109 // annihilation) into the life-time of the particle for the
>> 110 // occurence of the given process.
>> 111
>> 112 virtual G4double GetContinuousStepLimit(const G4Track& aTrack,
>> 113 G4double previousStepSize,
>> 114 G4double currentMinimumStep,
>> 115 G4double& currentSafety
>> 116 )=0;
>> 117 private:
>> 118 // this is the returnd value of G4GPILSelection in
>> 119 // the arguments of AlongStepGPIL()
>> 120 G4GPILSelection valueGPILSelection;
>> 121
>> 122 protected: // with description
>> 123 // these two methods are set/get methods for valueGPILSelection
>> 124 void SetGPILSelection(G4GPILSelection selection)
>> 125 { valueGPILSelection = selection;};
90 126
91 protected: << 127 G4GPILSelection GetGPILSelection() const{return valueGPILSelection;};
92 128
93 virtual G4double GetMeanLifeTime( const G4 << 129 protected: // with description
94 G4ForceC << 130 virtual G4double GetMeanFreePath(const G4Track& aTrack,
95 // Calculates the mean life-time (i.e. f << 131 G4double previousStepSize,
96 // particle at rest due to the occurrenc << 132 G4ForceCondition* condition
97 // or converts the probability of intera << 133 )=0;
98 // annihilation) into the life-time of t << 134 // Calculates from the macroscopic cross section a mean
99 // occurrence of the given process << 135 // free path, the value is returned in units of distance.
100 << 136
101 virtual G4double GetContinuousStepLimit( c << 137 private:
102 G << 138 // hide default constructor and assignment operator as private
103 G << 139 G4VRestContinuousDiscreteProcess();
104 G << 140 G4VRestContinuousDiscreteProcess & operator=(const G4VRestContinuousDiscreteProcess &right);
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 <<
111 141
112 inline void SetGPILSelection(G4GPILSelecti << 142 };
113 { valueGPILSelection = selection; } <<
114 143
115 inline G4GPILSelection GetGPILSelection() << 144 // -----------------------------------------
116 { return valueGPILSelection; } << 145 // inlined function members implementation
>> 146 // -----------------------------------------
>> 147 #include "G4Step.hh"
>> 148 #include "G4Track.hh"
>> 149 #include "G4MaterialTable.hh"
>> 150 #include "G4VParticleChange.hh"
117 151
118 private: << 152 inline G4double G4VRestContinuousDiscreteProcess::AtRestGetPhysicalInteractionLength(
>> 153 const G4Track& track,
>> 154 G4ForceCondition* condition
>> 155 )
>> 156 {
>> 157 // beggining of tracking
>> 158 ResetNumberOfInteractionLengthLeft();
119 159
120 G4VRestContinuousDiscreteProcess(); << 160 // condition is set to "Not Forced"
121 // Hidden default constructor << 161 *condition = NotForced;
122 162
123 G4GPILSelection valueGPILSelection = Candi << 163 // get mean life time
124 // This is the returned value of G4GPILS << 164 currentInteractionLength = GetMeanLifeTime(track, condition);
125 // the arguments of AlongStepGPIL() << 165
126 }; << 166 #ifdef G4VERBOSE
>> 167 if ((currentInteractionLength <0.0) || (verboseLevel>2)){
>> 168 G4cout << "G4VRestContinuousDiscreteProcess::AtRestGetPhysicalInteractionLength ";
>> 169 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 170 track.GetDynamicParticle()->DumpInfo();
>> 171 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 172 G4cout << "MeanLifeTime = " << currentInteractionLength/ns << "[ns]" <<G4endl;
>> 173 }
>> 174 #endif
>> 175
>> 176 return theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 177 }
127 178
>> 179
>> 180 inline G4VParticleChange* G4VRestContinuousDiscreteProcess::AtRestDoIt(
>> 181 const G4Track&,
>> 182 const G4Step&
>> 183 )
>> 184 {
>> 185 // clear NumberOfInteractionLengthLeft
>> 186 ClearNumberOfInteractionLengthLeft();
>> 187
>> 188 return pParticleChange;
>> 189 }
>> 190
>> 191 inline G4double G4VRestContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength(
>> 192 const G4Track& track,
>> 193 G4double previousStepSize,
>> 194 G4double currentMinimumStep,
>> 195 G4double& currentSafety,
>> 196 G4GPILSelection* selection
>> 197 )
>> 198 {
>> 199 // GPILSelection is set to defaule value of CandidateForSelection
>> 200 valueGPILSelection = CandidateForSelection;
>> 201
>> 202 // get Step limit proposed by the process
>> 203 G4double steplength = GetContinuousStepLimit(track,previousStepSize,currentMinimumStep, currentSafety);
>> 204
>> 205 // set return value for G4GPILSelection
>> 206 *selection = valueGPILSelection;
>> 207
>> 208 #ifdef G4VERBOSE
>> 209 if (verboseLevel>1){
>> 210 G4cout << "G4VRestContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength ";
>> 211 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 212 track.GetDynamicParticle()->DumpInfo();
>> 213 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 214 G4cout << "IntractionLength= " << steplength/cm <<"[cm] " <<G4endl;
>> 215 }
128 #endif 216 #endif
>> 217 return steplength ;
>> 218 }
>> 219
>> 220 inline G4VParticleChange* G4VRestContinuousDiscreteProcess::AlongStepDoIt(
>> 221 const G4Track& ,
>> 222 const G4Step&
>> 223 )
>> 224 {
>> 225 return pParticleChange;
>> 226 }
>> 227
>> 228 inline G4double G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength(
>> 229 const G4Track& track,
>> 230 G4double previousStepSize,
>> 231 G4ForceCondition* condition
>> 232 )
>> 233 {
>> 234 if ( (previousStepSize < 0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
>> 235 // beggining of tracking (or just after DoIt of this process)
>> 236 ResetNumberOfInteractionLengthLeft();
>> 237 } else if ( previousStepSize > 0.0) {
>> 238 // subtract NumberOfInteractionLengthLeft
>> 239 SubtractNumberOfInteractionLengthLeft(previousStepSize);
>> 240 } else {
>> 241 // zero step
>> 242 // DO NOTHING
>> 243 }
>> 244
>> 245 // condition is set to "Not Forced"
>> 246 *condition = NotForced;
>> 247
>> 248 // get mean free path
>> 249 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
>> 250
>> 251
>> 252 G4double value;
>> 253 if (currentInteractionLength <DBL_MAX) {
>> 254 value = theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 255 } else {
>> 256 value = DBL_MAX;
>> 257 }
>> 258 #ifdef G4VERBOSE
>> 259 if (verboseLevel>1){
>> 260 G4cout << "G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 261 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 262 track.GetDynamicParticle()->DumpInfo();
>> 263 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 264 G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
>> 265 }
>> 266 #endif
>> 267 return value;
>> 268 }
>> 269
>> 270 inline G4VParticleChange* G4VRestContinuousDiscreteProcess::PostStepDoIt(
>> 271 const G4Track& ,
>> 272 const G4Step&
>> 273 )
>> 274 {
>> 275 // clear NumberOfInteractionLengthLeft
>> 276 ClearNumberOfInteractionLengthLeft();
>> 277
>> 278 return pParticleChange;
>> 279 }
>> 280
>> 281
>> 282 #endif
>> 283
129 284