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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // >> 26 // $Id: G4ElectronIonPair.cc,v 1.2 2008/10/17 14:46:16 vnivanch Exp $ >> 27 // GEANT4 tag $Name: geant4-09-03-patch-02 $ 26 // 28 // 27 // ------------------------------------------- 29 // ------------------------------------------------------------------- 28 // 30 // 29 // GEANT4 Class file 31 // GEANT4 Class file 30 // 32 // 31 // 33 // 32 // File name: G4ElectronIonPair 34 // File name: G4ElectronIonPair 33 // 35 // 34 // Author: Vladimir Ivanchenko 36 // Author: Vladimir Ivanchenko 35 // 37 // 36 // Creation date: 08.07.2008 38 // Creation date: 08.07.2008 37 // 39 // 38 // Modifications: 40 // Modifications: 39 // 41 // 40 // ------------------------------------------- 42 // ------------------------------------------------------------- 41 43 42 //....oooOO0OOooo........oooOO0OOooo........oo 44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 43 //....oooOO0OOooo........oooOO0OOooo........oo 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 44 46 45 #include "G4ElectronIonPair.hh" 47 #include "G4ElectronIonPair.hh" 46 #include "G4SystemOfUnits.hh" << 48 #include "G4Gamma.hh" 47 #include "G4Material.hh" 49 #include "G4Material.hh" 48 #include "G4MaterialTable.hh" 50 #include "G4MaterialTable.hh" 49 #include "G4StepPoint.hh" 51 #include "G4StepPoint.hh" 50 #include "G4VProcess.hh" 52 #include "G4VProcess.hh" 51 #include "G4ProcessType.hh" 53 #include "G4ProcessType.hh" 52 #include "G4Track.hh" 54 #include "G4Track.hh" 53 #include "Randomize.hh" 55 #include "Randomize.hh" 54 56 55 //....oooOO0OOooo........oooOO0OOooo........oo 57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 56 58 57 G4ElectronIonPair::G4ElectronIonPair(G4int ver << 59 G4ElectronIonPair::G4ElectronIonPair() 58 { 60 { 59 verbose = verb; << 61 verbose = 1; 60 curMaterial = nullptr; << 62 curMaterial = 0; 61 curMeanEnergy = 0.0; 63 curMeanEnergy = 0.0; 62 nMaterials = 0; 64 nMaterials = 0; 63 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 G4ThreeVector& prePos, >> 109 const G4ThreeVector& postPos, >> 110 G4double meanion) 107 { 111 { 108 std::vector<G4ThreeVector>* v = nullptr; << 112 std::vector<G4ThreeVector>* v = new std::vector<G4ThreeVector>; 109 113 110 G4int nion = SampleNumberOfIonsAlongStep(ste << 114 G4double sig = 0.2*std::sqrt(meanion); >> 115 G4int nion = G4int(G4RandGauss::shoot(meanion,sig) + 0.5); 111 116 112 // sample ionisation along step 117 // sample ionisation along step 113 if(nion > 0) { 118 if(nion > 0) { 114 119 115 v = new std::vector<G4ThreeVector>; << 120 G4ThreeVector deltaPos = postPos - prePos; 116 G4ThreeVector prePos = step->GetPreStepPoi << 121 for(G4int i=0; i<nion; i++) { 117 G4ThreeVector deltaPos = step->GetPostStep << 118 for(G4int i=0; i<nion; ++i) { << 119 v->push_back( prePos + deltaPos*G4Unifor 122 v->push_back( prePos + deltaPos*G4UniformRand() ); 120 } 123 } 121 if(verbose > 1 ) { 124 if(verbose > 1 ) { 122 G4cout << "### G4ElectronIonPair::Sample 125 G4cout << "### G4ElectronIonPair::SampleIonisationPoints: " 123 << v->size() << " ion pairs are added" 126 << v->size() << " ion pairs are added" << G4endl; 124 } 127 } 125 } 128 } 126 return v; 129 return v; 127 } 130 } 128 131 129 //....oooOO0OOooo........oooOO0OOooo........oo 132 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 130 133 131 G4int << 134 G4int G4ElectronIonPair::ResidualeChargePostStep(const G4ParticleDefinition*, 132 G4ElectronIonPair::ResidualeChargePostStep(con << 135 const G4TrackVector*, 133 const G4TrackVector*, << 136 G4int subType) 134 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 G4ElectronIonPair::FindG4MeanEnergyPerIonPair(const G4Material* mat) 145 G4ElectronIonPair::FindG4MeanEnergyPerIonPair( << 146 { 147 { 147 G4String name = mat->GetName(); 148 G4String name = mat->GetName(); 148 G4double res = 0.0; 149 G4double res = 0.0; 149 150 150 // is this material in the vector? 151 // is this material in the vector? 151 for(G4int j=0; j<nMaterials; ++j) { << 152 for(G4int j=0; j<nMaterials; j++) { 152 if(name == g4MatNames[j]) { 153 if(name == g4MatNames[j]) { 153 res = g4MatData[j]; 154 res = g4MatData[j]; 154 mat->GetIonisation()->SetMeanEnergyPerIo 155 mat->GetIonisation()->SetMeanEnergyPerIonPair(res); 155 if(verbose > 0) { 156 if(verbose > 0) { 156 G4cout << "### G4ElectronIonPair::FindG4Mean 157 G4cout << "### G4ElectronIonPair::FindG4MeanEnergyPerIonPair for " 157 << name << " Epair= " << res/eV << " 158 << name << " Epair= " << res/eV << " eV is set" 158 << G4endl; 159 << G4endl; 159 } 160 } 160 break; 161 break; 161 } 162 } 162 } 163 } 163 return res; 164 return res; 164 } 165 } 165 166 166 //....oooOO0OOooo........oooOO0OOooo........oo 167 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 167 168 168 void G4ElectronIonPair:: DumpMeanEnergyPerIonP << 169 void G4ElectronIonPair:: DumpMeanEnergyPerIonPair() 169 { 170 { 170 std::size_t nmat = G4Material::GetNumberOfMa << 171 G4int nmat = G4Material::GetNumberOfMaterials(); 171 const G4MaterialTable* mtable = G4Material:: 172 const G4MaterialTable* mtable = G4Material::GetMaterialTable(); 172 if(nmat > 0) { 173 if(nmat > 0) { 173 G4cout << "### G4ElectronIonPair: mean ene << 174 G4cout << "### G4ElectronIonPair: mean energy per ion pair avalable:" << G4endl; 174 << G4endl; << 175 for(G4int i=0; i<nmat; i++) { 175 for(std::size_t i=0; i<nmat; ++i) { << 176 const G4Material* mat = (*mtable)[i]; 176 const G4Material* mat = (*mtable)[i]; 177 G4double x = mat->GetIonisation()->GetMe 177 G4double x = mat->GetIonisation()->GetMeanEnergyPerIonPair(); 178 if(x > 0.0) { 178 if(x > 0.0) { 179 G4cout << " " << mat->GetName() << " Epa 179 G4cout << " " << mat->GetName() << " Epair= " 180 << x/eV << " eV" << G4endl; 180 << x/eV << " eV" << G4endl; 181 } 181 } 182 } 182 } 183 } 183 } 184 } 184 } 185 185 186 //....oooOO0OOooo........oooOO0OOooo........oo 186 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 187 187 188 void G4ElectronIonPair::DumpG4MeanEnergyPerIon << 188 void G4ElectronIonPair::DumpG4MeanEnergyPerIonPair() 189 { 189 { 190 if(nMaterials > 0) { 190 if(nMaterials > 0) { 191 G4cout << "### G4ElectronIonPair: mean ene 191 G4cout << "### G4ElectronIonPair: mean energy per ion pair " 192 << " for Geant4 materials" << G4endl; 192 << " for Geant4 materials" << G4endl; 193 for(G4int i=0; i<nMaterials; ++i) { << 193 for(G4int i=0; i<nMaterials; i++) { 194 G4cout << " " << g4MatNames[i] << " 194 G4cout << " " << g4MatNames[i] << " Epair= " 195 << g4MatData[i]/eV << " eV" << G4endl; 195 << g4MatData[i]/eV << " eV" << G4endl; 196 } 196 } 197 } 197 } 198 } 198 } 199 199 200 //....oooOO0OOooo........oooOO0OOooo........oo 200 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 201 201 202 void G4ElectronIonPair::Initialise() 202 void G4ElectronIonPair::Initialise() 203 { 203 { 204 // ICRU Report 31, 1979 204 // ICRU Report 31, 1979 205 g4MatNames.push_back("G4_Si"); 205 g4MatNames.push_back("G4_Si"); 206 g4MatData.push_back(3.62*eV); 206 g4MatData.push_back(3.62*eV); 207 207 208 g4MatNames.push_back("G4_Ge"); 208 g4MatNames.push_back("G4_Ge"); 209 g4MatData.push_back(2.97*eV); 209 g4MatData.push_back(2.97*eV); 210 210 211 g4MatNames.push_back("G4_He"); 211 g4MatNames.push_back("G4_He"); 212 g4MatData.push_back(44.4*eV); 212 g4MatData.push_back(44.4*eV); 213 213 214 g4MatNames.push_back("G4_N"); 214 g4MatNames.push_back("G4_N"); 215 g4MatData.push_back(36.4*eV); 215 g4MatData.push_back(36.4*eV); 216 216 217 g4MatNames.push_back("G4_O"); 217 g4MatNames.push_back("G4_O"); 218 g4MatData.push_back(32.3*eV); 218 g4MatData.push_back(32.3*eV); 219 219 220 g4MatNames.push_back("G4_Ne"); 220 g4MatNames.push_back("G4_Ne"); 221 g4MatData.push_back(36.8*eV); 221 g4MatData.push_back(36.8*eV); 222 222 223 g4MatNames.push_back("G4_Ar"); 223 g4MatNames.push_back("G4_Ar"); 224 g4MatData.push_back(26.34*eV); 224 g4MatData.push_back(26.34*eV); 225 225 226 g4MatNames.push_back("G4_Kr"); 226 g4MatNames.push_back("G4_Kr"); 227 g4MatData.push_back(24.1*eV); 227 g4MatData.push_back(24.1*eV); 228 228 229 g4MatNames.push_back("G4_Xe"); 229 g4MatNames.push_back("G4_Xe"); 230 g4MatData.push_back(21.6*eV); 230 g4MatData.push_back(21.6*eV); 231 231 232 g4MatNames.push_back("G4_lAr"); 232 g4MatNames.push_back("G4_lAr"); 233 g4MatData.push_back(23.6*eV); 233 g4MatData.push_back(23.6*eV); 234 234 235 g4MatNames.push_back("G4_lKr"); 235 g4MatNames.push_back("G4_lKr"); 236 g4MatData.push_back(20.5*eV); 236 g4MatData.push_back(20.5*eV); 237 237 238 g4MatNames.push_back("G4_lXe"); 238 g4MatNames.push_back("G4_lXe"); 239 g4MatData.push_back(15.6*eV); 239 g4MatData.push_back(15.6*eV); 240 240 241 g4MatNames.push_back("G4_AIR"); 241 g4MatNames.push_back("G4_AIR"); 242 g4MatData.push_back(35.1*eV); 242 g4MatData.push_back(35.1*eV); 243 243 244 nMaterials = (G4int)g4MatData.size(); << 244 nMaterials = g4MatData.size(); 245 } 245 } 246 246 247 //....oooOO0OOooo........oooOO0OOooo........oo 247 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 248 248