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25 // 25 //
26 // G4VRestDiscreteProcess <<
27 // 26 //
28 // Class description: << 27 // $Id: G4VRestDiscreteProcess.hh,v 1.8 2006/06/29 21:07:56 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-08-01 $
>> 29 //
>> 30 //
>> 31 // ------------------------------------------------------------
>> 32 // GEANT 4 class header file
>> 33 //
>> 34 //
>> 35 // Class Description
>> 36 // Abstract class which defines the public behavior of
>> 37 // rest + discrete physics interactions.
>> 38 //
>> 39 // ------------------------------------------------------------
>> 40 // New Physics scheme 8 Mar. 1997 H.Kurahige
>> 41 // ------------------------------------------------------------
>> 42 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
>> 43 // Fixed a bug in PostStepGetPhysicalInteractionLength
>> 44 // 15 Apr. 2002 H.Kurashige
29 // 45 //
30 // Abstract class which defines the public beh <<
31 // rest + discrete physics interactions. <<
32 46
33 // Authors: << 47 #ifndef G4VRestDiscreteProcess_h
34 // - 2 December 1995, G.Cosmo - First implemen << 48 #define G4VRestDiscreteProcess_h 1
35 // - 8 January 1997, H.Kurashige - New Physics <<
36 // ------------------------------------------- <<
37 #ifndef G4VRestDiscreteProcess_hh <<
38 #define G4VRestDiscreteProcess_hh 1 <<
39 49
40 #include "globals.hh" 50 #include "globals.hh"
41 #include "G4ios.hh" 51 #include "G4ios.hh"
42 52
43 #include "G4VProcess.hh" 53 #include "G4VProcess.hh"
44 54
>> 55
45 class G4VRestDiscreteProcess : public G4VProce 56 class G4VRestDiscreteProcess : public G4VProcess
46 { 57 {
>> 58 // Abstract class which defines the public behavior of
>> 59 // rest + discrete physics interactions.
47 public: 60 public:
48 61
49 G4VRestDiscreteProcess(const G4String& , << 62 G4VRestDiscreteProcess(const G4String& ,
50 G4ProcessType aType = fNotDefined); << 63 G4ProcessType aType = fNotDefined );
51 G4VRestDiscreteProcess(G4VRestDiscreteProc << 64 G4VRestDiscreteProcess(G4VRestDiscreteProcess &);
52 65
53 virtual ~G4VRestDiscreteProcess(); << 66 virtual ~G4VRestDiscreteProcess();
54 67
55 G4VRestDiscreteProcess& operator=(const G4 << 68 public :// with description
56 << 69 virtual G4double PostStepGetPhysicalInteractionLength(
57 virtual G4double PostStepGetPhysicalIntera <<
58 const G4Track& tr 70 const G4Track& track,
59 G4double previousStepSize, << 71 G4double previousStepSize,
60 G4ForceCondition* condition 72 G4ForceCondition* condition
61 ); 73 );
62 74
63 virtual G4VParticleChange* PostStepDoIt( << 75 virtual G4VParticleChange* PostStepDoIt(
64 const G4Track& , 76 const G4Track& ,
65 const G4Step& 77 const G4Step&
66 ); 78 );
67 79
68 virtual G4double AtRestGetPhysicalInteract << 80 virtual G4double AtRestGetPhysicalInteractionLength(
69 const G4Track& , 81 const G4Track& ,
70 G4ForceCondition* 82 G4ForceCondition*
71 ); 83 );
72 84
73 virtual G4VParticleChange* AtRestDoIt( << 85 virtual G4VParticleChange* AtRestDoIt(
74 const G4Track& , 86 const G4Track& ,
75 const G4Step& 87 const G4Step&
76 ); 88 );
77 89
78 virtual G4double AlongStepGetPhysicalInter << 90 // no operation in AlongStepDoIt
>> 91 virtual G4double AlongStepGetPhysicalInteractionLength(
79 const G4Track&, 92 const G4Track&,
80 G4double , 93 G4double ,
81 G4double , 94 G4double ,
82 G4double& , 95 G4double& ,
83 G4GPILSelection* 96 G4GPILSelection*
84 ) { return -1.0; } << 97 ){ return -1.0; };
85 // No operation in AlongStepDoIt <<
86 98
87 virtual G4VParticleChange* AlongStepDoIt( << 99 // no operation in AlongStepDoIt
>> 100 virtual G4VParticleChange* AlongStepDoIt(
88 const G4Track& , 101 const G4Track& ,
89 const G4Step& 102 const G4Step&
90 ) { return 0; } << 103 ) {return 0;};
91 // No operation in AlongStepDoIt <<
92 104
93 protected: << 105 protected:// with description
94 << 106 virtual G4double GetMeanFreePath(const G4Track& aTrack,
95 virtual G4double GetMeanFreePath(const G4T << 107 G4double previousStepSize,
96 G4double << 108 G4ForceCondition* condition
97 G4ForceCo << 109 )=0;
98 // Calculates from the macroscopic cross << 110 // Calculates from the macroscopic cross section a mean
99 // free path, the value is returned in u << 111 // free path, the value is returned in units of distance.
100 << 112
101 virtual G4double GetMeanLifeTime(const G4T << 113 virtual G4double GetMeanLifeTime(const G4Track& aTrack,G4ForceCondition* condition)=0;
102 G4ForceCo << 114 // Calculates the mean life-time (i.e. for decays) of the
103 // Calculates the mean life-time (i.e. f << 115 // particle at rest due to the occurence of the given process,
104 // particle at rest due to the occurrenc << 116 // or converts the probability of interaction (i.e. for
105 // or converts the probability of intera << 117 // annihilation) into the life-time of the particle for the
106 // annihilation) into the life-time of t << 118 // occurence of the given process.
107 // occurrence of the given process <<
108 119
109 private: 120 private:
>> 121 // hide default constructor and assignment operator as private
>> 122 G4VRestDiscreteProcess();
>> 123 G4VRestDiscreteProcess & operator=(const G4VRestDiscreteProcess &right);
110 124
111 G4VRestDiscreteProcess(); <<
112 // Hidden default constructor <<
113 }; 125 };
114 126
>> 127 // -----------------------------------------
>> 128 // inlined function members implementation
>> 129 // -----------------------------------------
>> 130 #include "Randomize.hh"
>> 131 #include "G4Step.hh"
>> 132 #include "G4Track.hh"
>> 133 #include "G4MaterialTable.hh"
>> 134 #include "G4VParticleChange.hh"
>> 135
>> 136 inline
>> 137 G4double G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength(
>> 138 const G4Track& track,
>> 139 G4double previousStepSize,
>> 140 G4ForceCondition* condition
>> 141 )
>> 142 {
>> 143 if ( (previousStepSize <=0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
>> 144 // beggining of tracking (or just after DoIt of this process)
>> 145 ResetNumberOfInteractionLengthLeft();
>> 146 } else {
>> 147 // subtract NumberOfInteractionLengthLeft
>> 148 SubtractNumberOfInteractionLengthLeft(previousStepSize);
>> 149 if(theNumberOfInteractionLengthLeft<0.)
>> 150 theNumberOfInteractionLengthLeft=perMillion;
>> 151 }
>> 152
>> 153 // condition is set to "Not Forced"
>> 154 *condition = NotForced;
>> 155
>> 156 // get mean free path
>> 157 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
>> 158
>> 159 #ifdef G4VERBOSE
>> 160 if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
>> 161 G4cout << "G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 162 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 163 track.GetDynamicParticle()->DumpInfo();
>> 164 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 165 G4cout << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
>> 166 }
>> 167 #endif
>> 168
>> 169 G4double value;
>> 170 if (currentInteractionLength <DBL_MAX) {
>> 171 value = theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 172 } else {
>> 173 value = DBL_MAX;
>> 174 }
>> 175 #ifdef G4VERBOSE
>> 176 if (verboseLevel>1){
>> 177 G4cout << "G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 178 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 179 track.GetDynamicParticle()->DumpInfo();
>> 180 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 181 G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
>> 182 }
>> 183 #endif
>> 184 return value;
>> 185 }
>> 186
>> 187 inline G4VParticleChange* G4VRestDiscreteProcess::PostStepDoIt(
>> 188 const G4Track& ,
>> 189 const G4Step&
>> 190 )
>> 191 {
>> 192 // reset NumberOfInteractionLengthLeft
>> 193 ClearNumberOfInteractionLengthLeft();
>> 194
>> 195 return pParticleChange;
>> 196 }
>> 197
>> 198 inline G4double G4VRestDiscreteProcess::AtRestGetPhysicalInteractionLength(
>> 199 const G4Track& track,
>> 200 G4ForceCondition* condition
>> 201 )
>> 202 {
>> 203 // beggining of tracking
>> 204 ResetNumberOfInteractionLengthLeft();
>> 205
>> 206 // condition is set to "Not Forced"
>> 207 *condition = NotForced;
>> 208
>> 209 // get mean life time
>> 210 currentInteractionLength = GetMeanLifeTime(track, condition);
>> 211
>> 212 #ifdef G4VERBOSE
>> 213 if ((currentInteractionLength <0.0) || (verboseLevel>2)){
>> 214 G4cout << "G4VRestDiscreteProcess::AtRestGetPhysicalInteractionLength ";
>> 215 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 216 track.GetDynamicParticle()->DumpInfo();
>> 217 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 218 G4cout << "MeanLifeTime = " << currentInteractionLength/ns << "[ns]" <<G4endl;
>> 219 }
>> 220 #endif
>> 221
>> 222 return theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 223 }
>> 224
>> 225
>> 226 inline G4VParticleChange* G4VRestDiscreteProcess::AtRestDoIt(
>> 227 const G4Track&,
>> 228 const G4Step&
>> 229 )
>> 230 {
>> 231 // clear NumberOfInteractionLengthLeft
>> 232 ClearNumberOfInteractionLengthLeft();
>> 233
>> 234 return pParticleChange;
>> 235 }
>> 236
>> 237
>> 238
115 #endif 239 #endif
>> 240
116 241