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25 // 25 //
>> 26 // $Id$
26 // 27 //
27 // ------------------------------------------- 28 // -------------------------------------------------------------------
28 // 29 //
29 // GEANT4 Class file 30 // GEANT4 Class file
30 // 31 //
31 // 32 //
32 // File name: G4ElectronIonPair 33 // File name: G4ElectronIonPair
33 // 34 //
34 // Author: Vladimir Ivanchenko 35 // Author: Vladimir Ivanchenko
35 // 36 //
36 // Creation date: 08.07.2008 37 // Creation date: 08.07.2008
37 // 38 //
38 // Modifications: 39 // Modifications:
39 // 40 //
40 // ------------------------------------------- 41 // -------------------------------------------------------------
41 42
42 //....oooOO0OOooo........oooOO0OOooo........oo 43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
43 //....oooOO0OOooo........oooOO0OOooo........oo 44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
44 45
45 #include "G4ElectronIonPair.hh" 46 #include "G4ElectronIonPair.hh"
46 #include "G4SystemOfUnits.hh" 47 #include "G4SystemOfUnits.hh"
47 #include "G4Material.hh" 48 #include "G4Material.hh"
48 #include "G4MaterialTable.hh" 49 #include "G4MaterialTable.hh"
49 #include "G4StepPoint.hh" 50 #include "G4StepPoint.hh"
50 #include "G4VProcess.hh" 51 #include "G4VProcess.hh"
51 #include "G4ProcessType.hh" 52 #include "G4ProcessType.hh"
52 #include "G4Track.hh" 53 #include "G4Track.hh"
53 #include "Randomize.hh" 54 #include "Randomize.hh"
54 55
55 //....oooOO0OOooo........oooOO0OOooo........oo 56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
56 57
57 G4ElectronIonPair::G4ElectronIonPair(G4int ver 58 G4ElectronIonPair::G4ElectronIonPair(G4int verb)
58 { 59 {
59 verbose = verb; 60 verbose = verb;
60 curMaterial = nullptr; 61 curMaterial = nullptr;
61 curMeanEnergy = 0.0; 62 curMeanEnergy = 0.0;
62 nMaterials = 0; 63 nMaterials = 0;
63 invFanoFactor = 1.0/0.2; 64 invFanoFactor = 1.0/0.2;
64 Initialise(); 65 Initialise();
65 } 66 }
66 67
67 //....oooOO0OOooo........oooOO0OOooo........oo 68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
68 69
69 G4ElectronIonPair::~G4ElectronIonPair() = defa << 70 G4ElectronIonPair::~G4ElectronIonPair()
>> 71 {}
70 72
71 //....oooOO0OOooo........oooOO0OOooo........oo 73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
72 74
73 G4double G4ElectronIonPair::MeanNumberOfIonsAl 75 G4double G4ElectronIonPair::MeanNumberOfIonsAlongStep(
74 const G4ParticleDefinition* part, 76 const G4ParticleDefinition* part,
75 const G4Material* material, 77 const G4Material* material,
76 G4double edep, 78 G4double edep,
77 G4double niel) 79 G4double niel)
78 { 80 {
79 G4double nion = 0.0; 81 G4double nion = 0.0;
80 82
81 // NIEL does not provide ionisation clusters 83 // NIEL does not provide ionisation clusters
82 if(edep > niel) { 84 if(edep > niel) {
83 85
84 // neutral particles do not produce ionisa 86 // neutral particles do not produce ionisation along step
85 if(part->GetPDGCharge() != 0.0) { 87 if(part->GetPDGCharge() != 0.0) {
86 88
87 // select material 89 // select material
88 if(material != curMaterial) { 90 if(material != curMaterial) {
89 curMaterial = material; 91 curMaterial = material;
90 curMeanEnergy = material->GetIonisation()->G 92 curMeanEnergy = material->GetIonisation()->GetMeanEnergyPerIonPair();
91 93
92 // if mean energy is not defined then look i 94 // if mean energy is not defined then look into G4 DB
93 if(0.0 == curMeanEnergy) { 95 if(0.0 == curMeanEnergy) {
94 curMeanEnergy = FindG4MeanEnergyPerIonPair 96 curMeanEnergy = FindG4MeanEnergyPerIonPair(material);
95 } 97 }
96 } 98 }
97 if(curMeanEnergy > 0.0) { nion = (edep - 99 if(curMeanEnergy > 0.0) { nion = (edep - niel)/curMeanEnergy; }
98 } 100 }
99 } 101 }
100 return nion; 102 return nion;
101 } 103 }
102 104
103 //....oooOO0OOooo........oooOO0OOooo........oo 105 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
104 106
105 std::vector<G4ThreeVector>* 107 std::vector<G4ThreeVector>*
106 G4ElectronIonPair::SampleIonsAlongStep(const G 108 G4ElectronIonPair::SampleIonsAlongStep(const G4Step* step)
107 { 109 {
108 std::vector<G4ThreeVector>* v = nullptr; << 110 std::vector<G4ThreeVector>* v = 0;
109 111
110 G4int nion = SampleNumberOfIonsAlongStep(ste 112 G4int nion = SampleNumberOfIonsAlongStep(step);
111 113
112 // sample ionisation along step 114 // sample ionisation along step
113 if(nion > 0) { 115 if(nion > 0) {
114 116
115 v = new std::vector<G4ThreeVector>; 117 v = new std::vector<G4ThreeVector>;
116 G4ThreeVector prePos = step->GetPreStepPoi 118 G4ThreeVector prePos = step->GetPreStepPoint()->GetPosition();
117 G4ThreeVector deltaPos = step->GetPostStep 119 G4ThreeVector deltaPos = step->GetPostStepPoint()->GetPosition() - prePos;
118 for(G4int i=0; i<nion; ++i) { 120 for(G4int i=0; i<nion; ++i) {
119 v->push_back( prePos + deltaPos*G4Unifor 121 v->push_back( prePos + deltaPos*G4UniformRand() );
120 } 122 }
121 if(verbose > 1 ) { 123 if(verbose > 1 ) {
122 G4cout << "### G4ElectronIonPair::Sample 124 G4cout << "### G4ElectronIonPair::SampleIonisationPoints: "
123 << v->size() << " ion pairs are added" 125 << v->size() << " ion pairs are added" << G4endl;
124 } 126 }
125 } 127 }
126 return v; 128 return v;
127 } 129 }
128 130
129 //....oooOO0OOooo........oooOO0OOooo........oo 131 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
130 132
131 G4int 133 G4int
132 G4ElectronIonPair::ResidualeChargePostStep(con 134 G4ElectronIonPair::ResidualeChargePostStep(const G4ParticleDefinition*,
133 const G4TrackVector*, 135 const G4TrackVector*,
134 G4int subType) const 136 G4int subType) const
135 { 137 {
136 G4int nholes = 0; 138 G4int nholes = 0;
137 139
138 if(2 == subType || 12 == subType || 13 == su 140 if(2 == subType || 12 == subType || 13 == subType) { nholes = 1; }
139 return nholes; 141 return nholes;
140 } 142 }
141 143
142 //....oooOO0OOooo........oooOO0OOooo........oo 144 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
143 145
144 G4double 146 G4double
145 G4ElectronIonPair::FindG4MeanEnergyPerIonPair( 147 G4ElectronIonPair::FindG4MeanEnergyPerIonPair(const G4Material* mat) const
146 { 148 {
147 G4String name = mat->GetName(); 149 G4String name = mat->GetName();
148 G4double res = 0.0; 150 G4double res = 0.0;
149 151
150 // is this material in the vector? 152 // is this material in the vector?
151 for(G4int j=0; j<nMaterials; ++j) { << 153 for(G4int j=0; j<nMaterials; j++) {
152 if(name == g4MatNames[j]) { 154 if(name == g4MatNames[j]) {
153 res = g4MatData[j]; 155 res = g4MatData[j];
154 mat->GetIonisation()->SetMeanEnergyPerIo 156 mat->GetIonisation()->SetMeanEnergyPerIonPair(res);
155 if(verbose > 0) { 157 if(verbose > 0) {
156 G4cout << "### G4ElectronIonPair::FindG4Mean 158 G4cout << "### G4ElectronIonPair::FindG4MeanEnergyPerIonPair for "
157 << name << " Epair= " << res/eV << " 159 << name << " Epair= " << res/eV << " eV is set"
158 << G4endl; 160 << G4endl;
159 } 161 }
160 break; 162 break;
161 } 163 }
162 } 164 }
163 return res; 165 return res;
164 } 166 }
165 167
166 //....oooOO0OOooo........oooOO0OOooo........oo 168 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
167 169
168 void G4ElectronIonPair:: DumpMeanEnergyPerIonP 170 void G4ElectronIonPair:: DumpMeanEnergyPerIonPair() const
169 { 171 {
170 std::size_t nmat = G4Material::GetNumberOfMa << 172 G4int nmat = G4Material::GetNumberOfMaterials();
171 const G4MaterialTable* mtable = G4Material:: 173 const G4MaterialTable* mtable = G4Material::GetMaterialTable();
172 if(nmat > 0) { 174 if(nmat > 0) {
173 G4cout << "### G4ElectronIonPair: mean ene << 175 G4cout << "### G4ElectronIonPair: mean energy per ion pair avalable:"
174 << G4endl; 176 << G4endl;
175 for(std::size_t i=0; i<nmat; ++i) { << 177 for(G4int i=0; i<nmat; ++i) {
176 const G4Material* mat = (*mtable)[i]; 178 const G4Material* mat = (*mtable)[i];
177 G4double x = mat->GetIonisation()->GetMe 179 G4double x = mat->GetIonisation()->GetMeanEnergyPerIonPair();
178 if(x > 0.0) { 180 if(x > 0.0) {
179 G4cout << " " << mat->GetName() << " Epa 181 G4cout << " " << mat->GetName() << " Epair= "
180 << x/eV << " eV" << G4endl; 182 << x/eV << " eV" << G4endl;
181 } 183 }
182 } 184 }
183 } 185 }
184 } 186 }
185 187
186 //....oooOO0OOooo........oooOO0OOooo........oo 188 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
187 189
188 void G4ElectronIonPair::DumpG4MeanEnergyPerIon 190 void G4ElectronIonPair::DumpG4MeanEnergyPerIonPair() const
189 { 191 {
190 if(nMaterials > 0) { 192 if(nMaterials > 0) {
191 G4cout << "### G4ElectronIonPair: mean ene 193 G4cout << "### G4ElectronIonPair: mean energy per ion pair "
192 << " for Geant4 materials" << G4endl; 194 << " for Geant4 materials" << G4endl;
193 for(G4int i=0; i<nMaterials; ++i) { 195 for(G4int i=0; i<nMaterials; ++i) {
194 G4cout << " " << g4MatNames[i] << " 196 G4cout << " " << g4MatNames[i] << " Epair= "
195 << g4MatData[i]/eV << " eV" << G4endl; 197 << g4MatData[i]/eV << " eV" << G4endl;
196 } 198 }
197 } 199 }
198 } 200 }
199 201
200 //....oooOO0OOooo........oooOO0OOooo........oo 202 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
201 203
202 void G4ElectronIonPair::Initialise() 204 void G4ElectronIonPair::Initialise()
203 { 205 {
204 // ICRU Report 31, 1979 206 // ICRU Report 31, 1979
205 g4MatNames.push_back("G4_Si"); 207 g4MatNames.push_back("G4_Si");
206 g4MatData.push_back(3.62*eV); 208 g4MatData.push_back(3.62*eV);
207 209
208 g4MatNames.push_back("G4_Ge"); 210 g4MatNames.push_back("G4_Ge");
209 g4MatData.push_back(2.97*eV); 211 g4MatData.push_back(2.97*eV);
210 212
211 g4MatNames.push_back("G4_He"); 213 g4MatNames.push_back("G4_He");
212 g4MatData.push_back(44.4*eV); 214 g4MatData.push_back(44.4*eV);
213 215
214 g4MatNames.push_back("G4_N"); 216 g4MatNames.push_back("G4_N");
215 g4MatData.push_back(36.4*eV); 217 g4MatData.push_back(36.4*eV);
216 218
217 g4MatNames.push_back("G4_O"); 219 g4MatNames.push_back("G4_O");
218 g4MatData.push_back(32.3*eV); 220 g4MatData.push_back(32.3*eV);
219 221
220 g4MatNames.push_back("G4_Ne"); 222 g4MatNames.push_back("G4_Ne");
221 g4MatData.push_back(36.8*eV); 223 g4MatData.push_back(36.8*eV);
222 224
223 g4MatNames.push_back("G4_Ar"); 225 g4MatNames.push_back("G4_Ar");
224 g4MatData.push_back(26.34*eV); 226 g4MatData.push_back(26.34*eV);
225 227
226 g4MatNames.push_back("G4_Kr"); 228 g4MatNames.push_back("G4_Kr");
227 g4MatData.push_back(24.1*eV); 229 g4MatData.push_back(24.1*eV);
228 230
229 g4MatNames.push_back("G4_Xe"); 231 g4MatNames.push_back("G4_Xe");
230 g4MatData.push_back(21.6*eV); 232 g4MatData.push_back(21.6*eV);
231 233
232 g4MatNames.push_back("G4_lAr"); 234 g4MatNames.push_back("G4_lAr");
233 g4MatData.push_back(23.6*eV); 235 g4MatData.push_back(23.6*eV);
234 236
235 g4MatNames.push_back("G4_lKr"); 237 g4MatNames.push_back("G4_lKr");
236 g4MatData.push_back(20.5*eV); 238 g4MatData.push_back(20.5*eV);
237 239
238 g4MatNames.push_back("G4_lXe"); 240 g4MatNames.push_back("G4_lXe");
239 g4MatData.push_back(15.6*eV); 241 g4MatData.push_back(15.6*eV);
240 242
241 g4MatNames.push_back("G4_AIR"); 243 g4MatNames.push_back("G4_AIR");
242 g4MatData.push_back(35.1*eV); 244 g4MatData.push_back(35.1*eV);
243 245
244 nMaterials = (G4int)g4MatData.size(); << 246 nMaterials = g4MatData.size();
245 } 247 }
246 248
247 //....oooOO0OOooo........oooOO0OOooo........oo 249 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
248 250