Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/processes/electromagnetic/utils/src/G4ElectronIonPair.cc

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Diff markup

Differences between /processes/electromagnetic/utils/src/G4ElectronIonPair.cc (Version 11.3.0) and /processes/electromagnetic/utils/src/G4ElectronIonPair.cc (Version 9.2.p3)


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 25 //                                                 25 //
                                                   >>  26 // $Id: G4ElectronIonPair.cc,v 1.2 2008/10/17 14:46:16 vnivanch Exp $
                                                   >>  27 // GEANT4 tag $Name: geant4-09-02-patch-03 $
 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