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25 // 22 //
26 // G4VRestDiscreteProcess <<
27 // 23 //
28 // Class description: << 24 // $Id: G4VRestDiscreteProcess.hh,v 1.7 2003/03/25 06:22:23 kurasige Exp $
>> 25 // GEANT4 tag $Name: geant4-05-02 $
>> 26 //
>> 27 //
>> 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 for new ParticleChange 12 Mar. 1998 H.Kurashige
>> 40 // Fixed a bug in PostStepGetPhysicalInteractionLength
>> 41 // 15 Apr. 2002 H.Kurashige
29 // 42 //
30 // Abstract class which defines the public beh <<
31 // rest + discrete physics interactions. <<
32 43
33 // Authors: << 44 #ifndef G4VRestDiscreteProcess_h
34 // - 2 December 1995, G.Cosmo - First implemen << 45 #define G4VRestDiscreteProcess_h 1
35 // - 8 January 1997, H.Kurashige - New Physics <<
36 // ------------------------------------------- <<
37 #ifndef G4VRestDiscreteProcess_hh <<
38 #define G4VRestDiscreteProcess_hh 1 <<
39 46
40 #include "globals.hh" 47 #include "globals.hh"
41 #include "G4ios.hh" 48 #include "G4ios.hh"
42 49
43 #include "G4VProcess.hh" 50 #include "G4VProcess.hh"
44 51
>> 52
45 class G4VRestDiscreteProcess : public G4VProce 53 class G4VRestDiscreteProcess : public G4VProcess
46 { 54 {
>> 55 // Abstract class which defines the public behavior of
>> 56 // rest + discrete physics interactions.
47 public: 57 public:
48 58
49 G4VRestDiscreteProcess(const G4String& , << 59 G4VRestDiscreteProcess(const G4String& ,
50 G4ProcessType aType = fNotDefined); << 60 G4ProcessType aType = fNotDefined );
51 G4VRestDiscreteProcess(G4VRestDiscreteProc << 61 G4VRestDiscreteProcess(G4VRestDiscreteProcess &);
52 62
53 virtual ~G4VRestDiscreteProcess(); << 63 virtual ~G4VRestDiscreteProcess();
54 64
55 G4VRestDiscreteProcess& operator=(const G4 << 65 public :// with description
56 << 66 virtual G4double PostStepGetPhysicalInteractionLength(
57 virtual G4double PostStepGetPhysicalIntera <<
58 const G4Track& tr 67 const G4Track& track,
59 G4double previousStepSize, << 68 G4double previousStepSize,
60 G4ForceCondition* condition 69 G4ForceCondition* condition
61 ); 70 );
62 71
63 virtual G4VParticleChange* PostStepDoIt( << 72 virtual G4VParticleChange* PostStepDoIt(
64 const G4Track& , 73 const G4Track& ,
65 const G4Step& 74 const G4Step&
66 ); 75 );
67 76
68 virtual G4double AtRestGetPhysicalInteract << 77 virtual G4double AtRestGetPhysicalInteractionLength(
69 const G4Track& , 78 const G4Track& ,
70 G4ForceCondition* 79 G4ForceCondition*
71 ); 80 );
72 81
73 virtual G4VParticleChange* AtRestDoIt( << 82 virtual G4VParticleChange* AtRestDoIt(
74 const G4Track& , 83 const G4Track& ,
75 const G4Step& 84 const G4Step&
76 ); 85 );
77 86
78 virtual G4double AlongStepGetPhysicalInter << 87 // no operation in AlongStepDoIt
>> 88 virtual G4double AlongStepGetPhysicalInteractionLength(
79 const G4Track&, 89 const G4Track&,
80 G4double , 90 G4double ,
81 G4double , 91 G4double ,
82 G4double& , 92 G4double& ,
83 G4GPILSelection* 93 G4GPILSelection*
84 ) { return -1.0; } << 94 ){ return -1.0; };
85 // No operation in AlongStepDoIt <<
86 95
87 virtual G4VParticleChange* AlongStepDoIt( << 96 // no operation in AlongStepDoIt
>> 97 virtual G4VParticleChange* AlongStepDoIt(
88 const G4Track& , 98 const G4Track& ,
89 const G4Step& 99 const G4Step&
90 ) { return 0; } << 100 ) {return 0;};
91 // No operation in AlongStepDoIt <<
92 101
93 protected: << 102 protected:// with description
94 << 103 virtual G4double GetMeanFreePath(const G4Track& aTrack,
95 virtual G4double GetMeanFreePath(const G4T << 104 G4double previousStepSize,
96 G4double << 105 G4ForceCondition* condition
97 G4ForceCo << 106 )=0;
98 // Calculates from the macroscopic cross << 107 // Calculates from the macroscopic cross section a mean
99 // free path, the value is returned in u << 108 // free path, the value is returned in units of distance.
100 << 109
101 virtual G4double GetMeanLifeTime(const G4T << 110 virtual G4double GetMeanLifeTime(const G4Track& aTrack,G4ForceCondition* condition)=0;
102 G4ForceCo << 111 // Calculates the mean life-time (i.e. for decays) of the
103 // Calculates the mean life-time (i.e. f << 112 // particle at rest due to the occurence of the given process,
104 // particle at rest due to the occurrenc << 113 // or converts the probability of interaction (i.e. for
105 // or converts the probability of intera << 114 // annihilation) into the life-time of the particle for the
106 // annihilation) into the life-time of t << 115 // occurence of the given process.
107 // occurrence of the given process <<
108 116
109 private: 117 private:
>> 118 // hide default constructor and assignment operator as private
>> 119 G4VRestDiscreteProcess();
>> 120 G4VRestDiscreteProcess & operator=(const G4VRestDiscreteProcess &right);
110 121
111 G4VRestDiscreteProcess(); <<
112 // Hidden default constructor <<
113 }; 122 };
114 123
>> 124 // -----------------------------------------
>> 125 // inlined function members implementation
>> 126 // -----------------------------------------
>> 127 #include "Randomize.hh"
>> 128 #include "G4Step.hh"
>> 129 #include "G4Track.hh"
>> 130 #include "G4MaterialTable.hh"
>> 131 #include "G4VParticleChange.hh"
>> 132
>> 133 inline
>> 134 G4double G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength(
>> 135 const G4Track& track,
>> 136 G4double previousStepSize,
>> 137 G4ForceCondition* condition
>> 138 )
>> 139 {
>> 140 if ( (previousStepSize <=0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
>> 141 // beggining of tracking (or just after DoIt of this process)
>> 142 ResetNumberOfInteractionLengthLeft();
>> 143 } else {
>> 144 // subtract NumberOfInteractionLengthLeft
>> 145 SubtractNumberOfInteractionLengthLeft(previousStepSize);
>> 146 if(theNumberOfInteractionLengthLeft<0.)
>> 147 theNumberOfInteractionLengthLeft=perMillion;
>> 148 }
>> 149
>> 150 // condition is set to "Not Forced"
>> 151 *condition = NotForced;
>> 152
>> 153 // get mean free path
>> 154 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
>> 155
>> 156 #ifdef G4VERBOSE
>> 157 if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
>> 158 G4cout << "G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 159 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 160 track.GetDynamicParticle()->DumpInfo();
>> 161 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 162 G4cout << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
>> 163 }
>> 164 #endif
>> 165
>> 166 G4double value;
>> 167 if (currentInteractionLength <DBL_MAX) {
>> 168 value = theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 169 } else {
>> 170 value = DBL_MAX;
>> 171 }
>> 172 #ifdef G4VERBOSE
>> 173 if (verboseLevel>1){
>> 174 G4cout << "G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 175 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 176 track.GetDynamicParticle()->DumpInfo();
>> 177 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 178 G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
>> 179 }
>> 180 #endif
>> 181 return value;
>> 182 }
>> 183
>> 184 inline G4VParticleChange* G4VRestDiscreteProcess::PostStepDoIt(
>> 185 const G4Track& ,
>> 186 const G4Step&
>> 187 )
>> 188 {
>> 189 // reset NumberOfInteractionLengthLeft
>> 190 ClearNumberOfInteractionLengthLeft();
>> 191
>> 192 return pParticleChange;
>> 193 }
>> 194
>> 195 inline G4double G4VRestDiscreteProcess::AtRestGetPhysicalInteractionLength(
>> 196 const G4Track& track,
>> 197 G4ForceCondition* condition
>> 198 )
>> 199 {
>> 200 // beggining of tracking
>> 201 ResetNumberOfInteractionLengthLeft();
>> 202
>> 203 // condition is set to "Not Forced"
>> 204 *condition = NotForced;
>> 205
>> 206 // get mean life time
>> 207 currentInteractionLength = GetMeanLifeTime(track, condition);
>> 208
>> 209 #ifdef G4VERBOSE
>> 210 if ((currentInteractionLength <0.0) || (verboseLevel>2)){
>> 211 G4cout << "G4VRestDiscreteProcess::AtRestGetPhysicalInteractionLength ";
>> 212 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 213 track.GetDynamicParticle()->DumpInfo();
>> 214 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 215 G4cout << "MeanLifeTime = " << currentInteractionLength/ns << "[ns]" <<G4endl;
>> 216 }
>> 217 #endif
>> 218
>> 219 return theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 220 }
>> 221
>> 222
>> 223 inline G4VParticleChange* G4VRestDiscreteProcess::AtRestDoIt(
>> 224 const G4Track&,
>> 225 const G4Step&
>> 226 )
>> 227 {
>> 228 // clear NumberOfInteractionLengthLeft
>> 229 ClearNumberOfInteractionLengthLeft();
>> 230
>> 231 return pParticleChange;
>> 232 }
>> 233
>> 234
>> 235
115 #endif 236 #endif
>> 237
116 238