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25 // 25 //
>> 26 // $Id: G4ElectronIonPair.hh,v 1.2 2008/10/17 14:46:16 vnivanch Exp $
>> 27 // GEANT4 tag $Name: geant4-09-02 $
>> 28 //
>> 29 //
26 #ifndef G4ElectronIonPair_h 30 #ifndef G4ElectronIonPair_h
27 #define G4ElectronIonPair_h 1 31 #define G4ElectronIonPair_h 1
28 32
29 // ------------------------------------------- 33 // -------------------------------------------------------------
30 // 34 //
31 // GEANT4 Class header file 35 // GEANT4 Class header file
32 // 36 //
33 // 37 //
34 // File name: G4ElectronIonPair 38 // File name: G4ElectronIonPair
35 // 39 //
36 // Author: Vladimir Ivanchenko 40 // Author: Vladimir Ivanchenko
37 // 41 //
38 // Creation date: 08.07.2008 42 // Creation date: 08.07.2008
39 // 43 //
40 // Modifications: 44 // Modifications:
41 // 45 //
42 // 46 //
43 // Class Description: 47 // Class Description:
44 // Compution on number of electon-ion or ele 48 // Compution on number of electon-ion or electorn-hole pairs
45 // at the step of a particle and sampling io 49 // at the step of a particle and sampling ionisation points
46 // in space 50 // in space
47 // 51 //
48 // Based on ICRU Report 31, 1979 52 // Based on ICRU Report 31, 1979
49 // "Average Energy Required to Produce an Ion << 53 // "Average Energy Required to Produce an Ion Pair"
50 // <<
51 // 06.04.2010 V. Grichine, substitute Gauss by <<
52 // distribution at fix <<
53 // 54 //
54 // ------------------------------------------- 55 // -------------------------------------------------------------
55 56
56 //....oooOO0OOooo........oooOO0OOooo........oo 57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
57 //....oooOO0OOooo........oooOO0OOooo........oo 58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
58 59
59 #include "globals.hh" 60 #include "globals.hh"
60 #include "G4Step.hh" 61 #include "G4Step.hh"
61 #include "G4ParticleDefinition.hh" 62 #include "G4ParticleDefinition.hh"
62 #include "G4ThreeVector.hh" 63 #include "G4ThreeVector.hh"
>> 64 #include "G4TrackVector.hh"
63 #include "G4VProcess.hh" 65 #include "G4VProcess.hh"
64 #include "Randomize.hh" <<
65 #include <vector> 66 #include <vector>
66 67
67 //....oooOO0OOooo........oooOO0OOooo........oo 68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
68 69
69 class G4Material; 70 class G4Material;
70 71
71 class G4ElectronIonPair 72 class G4ElectronIonPair
72 { 73 {
73 public: 74 public:
74 75
75 explicit G4ElectronIonPair(G4int verb); << 76 G4ElectronIonPair();
76 77
77 virtual ~G4ElectronIonPair(); 78 virtual ~G4ElectronIonPair();
78 79
79 // compute mean number of ionisation points 80 // compute mean number of ionisation points at a step
80 G4double MeanNumberOfIonsAlongStep(const G4P 81 G4double MeanNumberOfIonsAlongStep(const G4ParticleDefinition*,
81 const G4Material*, 82 const G4Material*,
82 G4double edepTotal, 83 G4double edepTotal,
83 G4double edepNIEL = 0.0); 84 G4double edepNIEL = 0.0);
84 85
85 inline G4double MeanNumberOfIonsAlongStep(co 86 inline G4double MeanNumberOfIonsAlongStep(const G4Step*);
86 87
87 inline G4int SampleNumberOfIonsAlongStep(con <<
88 <<
89 // returns pointer to the new vector of posi 88 // returns pointer to the new vector of positions of
90 // ionisation points in the World coordinate 89 // ionisation points in the World coordinate system
>> 90 std::vector<G4ThreeVector>*
>> 91 SampleIonsAlongStep(const G4ThreeVector& prePosition,
>> 92 const G4ThreeVector& postPosition,
>> 93 G4double numberOfIonisations);
>> 94
91 std::vector<G4ThreeVector>* SampleIonsAlongS 95 std::vector<G4ThreeVector>* SampleIonsAlongStep(const G4Step*);
92 96
93 // compute number of holes in the atom after 97 // compute number of holes in the atom after PostStep interaction
94 G4int ResidualeChargePostStep(const G4Partic 98 G4int ResidualeChargePostStep(const G4ParticleDefinition*,
95 const G4TrackVector* secondary = nullp << 99 const G4TrackVector* secondary = 0,
96 G4int processSubType = -1) const; << 100 G4int processSubType = -1);
97 101
98 inline G4int ResidualeChargePostStep(const G << 102 inline G4int ResidualeChargePostStep(const G4Step*);
99 103
100 // find mean energies per ionisation 104 // find mean energies per ionisation
101 G4double FindG4MeanEnergyPerIonPair(const G4 << 105 G4double FindG4MeanEnergyPerIonPair(const G4Material*);
102 106
103 // dump mean energies per ionisation used in 107 // dump mean energies per ionisation used in run time
104 void DumpMeanEnergyPerIonPair() const; << 108 void DumpMeanEnergyPerIonPair();
105 109
106 // dump G4 list 110 // dump G4 list
107 void DumpG4MeanEnergyPerIonPair() const; << 111 void DumpG4MeanEnergyPerIonPair();
108 112
109 inline void SetVerbose(G4int); 113 inline void SetVerbose(G4int);
110 114
>> 115 private:
>> 116
111 // hide assignment operator 117 // hide assignment operator
112 G4ElectronIonPair & operator=(const G4Electr << 118 G4ElectronIonPair & operator=(const G4ElectronIonPair &right);
113 G4ElectronIonPair(const G4ElectronIonPair&) << 119 G4ElectronIonPair(const G4ElectronIonPair&);
114 120
115 private: << 121 G4double FindMeanEnergyPerIonPair(const G4Material*);
116 122
117 void Initialise(); 123 void Initialise();
118 124
119 G4double FindMeanEnergyPerIonPair(const G4Ma << 125 const G4ParticleDefinition* gamma;
120 126
121 // cache << 127 // cash
122 const G4Material* curMaterial; << 128 const G4Material* curMaterial;
123 G4double curMeanEnergy; << 129 G4double curMeanEnergy;
124 130
125 G4double invFanoFactor; <<
126 <<
127 G4int verbose; 131 G4int verbose;
128 G4int nMaterials; 132 G4int nMaterials;
129 133
130 // list of G4 NIST materials with mean energ 134 // list of G4 NIST materials with mean energy per ion defined
131 std::vector<G4double> g4MatData; << 135 std::vector<G4double> g4MatData;
132 std::vector<G4String> g4MatNames; << 136 std::vector<G4String> g4MatNames;
>> 137
133 }; 138 };
134 139
135 inline G4double 140 inline G4double
136 G4ElectronIonPair::MeanNumberOfIonsAlongStep(c << 141 G4ElectronIonPair::MeanNumberOfIonsAlongStep(const G4Step* step)
137 { 142 {
138 return MeanNumberOfIonsAlongStep(step->GetTr << 143 return MeanNumberOfIonsAlongStep(step->GetTrack()->GetDefinition(),
139 step->GetPreStepPoint()->GetMateria 144 step->GetPreStepPoint()->GetMaterial(),
140 step->GetTotalEnergyDeposit(), 145 step->GetTotalEnergyDeposit(),
141 step->GetNonIonizingEnergyDeposit() 146 step->GetNonIonizingEnergyDeposit());
142 } 147 }
143 148
144 inline G4int << 149 inline std::vector<G4ThreeVector>*
145 G4ElectronIonPair::SampleNumberOfIonsAlongStep << 150 G4ElectronIonPair::SampleIonsAlongStep(const G4Step* step)
146 { 151 {
147 // use gamma distribution with mean value n= << 152 return SampleIonsAlongStep(step->GetPreStepPoint()->GetPosition(),
148 // dispersion D=meanion/invFanoFactor << 153 step->GetPostStepPoint()->GetPosition(),
149 G4double meanion = MeanNumberOfIonsAlongStep << 154 MeanNumberOfIonsAlongStep(step));
150 return G4lrint(G4RandGamma::shoot(meanion*in << 155 }
151 } <<
152 156
153 inline G4int << 157 inline
154 G4ElectronIonPair::ResidualeChargePostStep(con << 158 G4int G4ElectronIonPair::ResidualeChargePostStep(const G4Step* step)
155 { 159 {
156 G4int subtype = -1; 160 G4int subtype = -1;
157 const G4VProcess* proc = step->GetPostStepPo 161 const G4VProcess* proc = step->GetPostStepPoint()->GetProcessDefinedStep();
158 if(proc) { subtype = proc->GetProcessSubType << 162 if(proc) subtype = proc->GetProcessSubType();
159 return ResidualeChargePostStep(step->GetTrac << 163 return ResidualeChargePostStep(step->GetTrack()->GetDefinition(),
160 step->GetSecondary(), 164 step->GetSecondary(),
161 subtype); 165 subtype);
162 } 166 }
163 167
164 inline void G4ElectronIonPair::SetVerbose(G4in 168 inline void G4ElectronIonPair::SetVerbose(G4int val)
165 { 169 {
166 verbose = val; 170 verbose = val;
167 } 171 }
168 172
169 #endif 173 #endif
170 174
171 175