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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 // $Id$ 26 // 27 // 27 // ------------------------------------------- 28 // ------------------------------------------------------------------- 28 // 29 // 29 // 30 // 30 // GEANT4 Class header file 31 // GEANT4 Class header file 31 // 32 // 32 // 33 // 33 // File name: G4WentzelVIModel 34 // File name: G4WentzelVIModel 34 // 35 // 35 // Author: V.Ivanchenko 36 // Author: V.Ivanchenko 36 // 37 // 37 // Creation date: 09.04.2008 from G4MuMscModel 38 // Creation date: 09.04.2008 from G4MuMscModel 38 // 39 // 39 // Modifications: 40 // Modifications: 40 // 27-05-2010 V.Ivanchenko added G4WentzelOKan 41 // 27-05-2010 V.Ivanchenko added G4WentzelOKandVIxSection class to 41 // compute cross sections and sam 42 // compute cross sections and sample scattering angle 42 // 43 // 43 // Class Description: 44 // Class Description: 44 // 45 // 45 // Implementation of the model of multiple sca 46 // Implementation of the model of multiple scattering based on 46 // G.Wentzel, Z. Phys. 40 (1927) 590. 47 // G.Wentzel, Z. Phys. 40 (1927) 590. 47 // H.W.Lewis, Phys Rev 78 (1950) 526. 48 // H.W.Lewis, Phys Rev 78 (1950) 526. 48 // J.M. Fernandez-Varea et al., NIM B73 (1993) 49 // J.M. Fernandez-Varea et al., NIM B73 (1993) 447. 49 // L.Urban, CERN-OPEN-2006-077. 50 // L.Urban, CERN-OPEN-2006-077. 50 51 51 // ------------------------------------------- 52 // ------------------------------------------------------------------- 52 // 53 // 53 54 54 #ifndef G4WentzelVIModel_h 55 #ifndef G4WentzelVIModel_h 55 #define G4WentzelVIModel_h 1 56 #define G4WentzelVIModel_h 1 56 57 57 //....oooOO0OOooo........oooOO0OOooo........oo 58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 58 59 59 #include "G4VMscModel.hh" 60 #include "G4VMscModel.hh" 60 #include "G4MaterialCutsCouple.hh" 61 #include "G4MaterialCutsCouple.hh" 61 #include "G4WentzelOKandVIxSection.hh" 62 #include "G4WentzelOKandVIxSection.hh" 62 63 >> 64 class G4ParticleDefinition; >> 65 class G4LossTableManager; >> 66 class G4NistManager; >> 67 class G4Pow; >> 68 63 //....oooOO0OOooo........oooOO0OOooo........oo 69 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 64 70 65 class G4WentzelVIModel : public G4VMscModel 71 class G4WentzelVIModel : public G4VMscModel 66 { 72 { 67 73 68 public: 74 public: 69 75 70 explicit G4WentzelVIModel(G4bool comb=true, << 76 G4WentzelVIModel(const G4String& nam = "WentzelVIUni"); 71 << 72 ~G4WentzelVIModel() override; << 73 << 74 void Initialise(const G4ParticleDefinition*, << 75 << 76 void InitialiseLocal(const G4ParticleDefinit << 77 G4VEmModel* masterModel) override; << 78 << 79 void StartTracking(G4Track*) override; << 80 << 81 G4double ComputeCrossSectionPerAtom(const G4 << 82 G4double KineticEnergy, << 83 G4double AtomicNumber, << 84 G4double AtomicWeight=0., << 85 G4double cut = DBL_MAX, << 86 G4double emax= DBL_MAX) override << 87 << 88 G4ThreeVector& SampleScattering(const G4Thre << 89 G4double safety) override; << 90 << 91 G4double << 92 ComputeTruePathLengthLimit(const G4Track& tr << 93 G4double& currentMinimalStep) overr << 94 << 95 G4double ComputeGeomPathLength(G4double true << 96 << 97 G4double ComputeTrueStepLength(G4double geom << 98 77 99 // defines low energy limit on energy transf << 78 virtual ~G4WentzelVIModel(); 100 void SetFixedCut(G4double); << 101 79 102 // low energy limit on energy transfer to at << 80 virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&); 103 G4double GetFixedCut() const; << 104 81 105 // access to cross section class << 82 void StartTracking(G4Track*); 106 void SetWVICrossSection(G4WentzelOKandVIxSec << 107 83 108 G4WentzelOKandVIxSection* GetWVICrossSection << 84 virtual G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*, >> 85 G4double KineticEnergy, >> 86 G4double AtomicNumber, >> 87 G4double AtomicWeight=0., >> 88 G4double cut = DBL_MAX, >> 89 G4double emax= DBL_MAX); 109 90 110 void SetUseSecondMoment(G4bool); << 91 virtual G4ThreeVector& SampleScattering(const G4DynamicParticle*, >> 92 G4double safety); 111 93 112 G4bool UseSecondMoment() const; << 94 virtual G4double ComputeTruePathLengthLimit(const G4Track& track, >> 95 G4double& currentMinimalStep); 113 96 114 G4PhysicsTable* GetSecondMomentTable(); << 97 virtual G4double ComputeGeomPathLength(G4double truePathLength); 115 98 116 G4double SecondMoment(const G4ParticleDefini << 99 virtual G4double ComputeTrueStepLength(G4double geomStepLength); 117 const G4MaterialCutsCouple*, << 118 G4double kineticEnergy); << 119 100 120 void SetSingleScatteringFactor(G4double); << 101 private: 121 << 122 void DefineMaterial(const G4MaterialCutsCoup << 123 << 124 G4WentzelVIModel & operator=(const G4Wentzel << 125 G4WentzelVIModel(const G4WentzelVIModel&) = << 126 << 127 protected: << 128 102 129 G4double ComputeTransportXSectionPerVolume(G << 103 G4double ComputeXSectionPerVolume(); 130 104 131 inline void SetupParticle(const G4ParticleDe 105 inline void SetupParticle(const G4ParticleDefinition*); 132 106 133 private: << 107 inline void DefineMaterial(const G4MaterialCutsCouple*); 134 << 135 G4double ComputeSecondMoment(const G4Particl << 136 G4double kineticEnergy); << 137 << 138 protected: << 139 108 >> 109 // hide assignment operator >> 110 G4WentzelVIModel & operator=(const G4WentzelVIModel &right); >> 111 G4WentzelVIModel(const G4WentzelVIModel&); >> 112 >> 113 G4LossTableManager* theManager; >> 114 G4NistManager* fNistManager; >> 115 G4ParticleChangeForMSC* fParticleChange; 140 G4WentzelOKandVIxSection* wokvi; 116 G4WentzelOKandVIxSection* wokvi; 141 const G4MaterialCutsCouple* currentCouple = << 117 G4Pow* fG4pow; 142 const G4Material* currentMaterial = nullptr; << 143 118 144 const G4ParticleDefinition* particle = nullp << 119 const G4DataVector* currentCuts; 145 G4ParticleChangeForMSC* fParticleChange = nu << 146 const G4DataVector* currentCuts = nullptr; << 147 G4PhysicsTable* fSecondMoments = nullptr; << 148 120 149 G4double lowEnergyLimit; << 150 G4double tlimitminfix; 121 G4double tlimitminfix; 151 G4double ssFactor = 1.05; << 122 G4double invsqrt12; 152 G4double invssFactor = 1.0; << 153 123 154 // cache kinematics 124 // cache kinematics 155 G4double preKinEnergy = 0.0; << 125 G4double preKinEnergy; 156 G4double tPathLength = 0.0; << 126 G4double tPathLength; 157 G4double zPathLength = 0.0; << 127 G4double zPathLength; 158 G4double lambdaeff = 0.0; << 128 G4double lambdaeff; 159 G4double currentRange = 0.0; << 129 G4double currentRange; 160 G4double cosTetMaxNuc = 0.0; << 130 >> 131 // data for single scattering mode >> 132 G4double xtsec; >> 133 std::vector<G4double> xsecn; >> 134 std::vector<G4double> prob; >> 135 G4int nelments; 161 136 162 G4double fixedCut = -1.0; << 137 G4double numlimit; 163 138 164 // cache kinematics << 139 // cache material 165 G4double effKinEnergy = 0.0; << 140 G4int currentMaterialIndex; >> 141 const G4MaterialCutsCouple* currentCouple; >> 142 const G4Material* currentMaterial; 166 143 167 // single scattering parameters 144 // single scattering parameters 168 G4double cosThetaMin = 1.0; << 145 G4double cosThetaMin; 169 G4double cosThetaMax = -1.0; << 146 G4double cosThetaMax; 170 G4double xtsec = 0.0; << 147 G4double cosTetMaxNuc; 171 << 172 G4int currentMaterialIndex = 0; << 173 size_t idx2 = 0; << 174 148 175 // data for single scattering mode << 149 // projectile 176 G4int nelments = 0; << 150 const G4ParticleDefinition* particle; >> 151 G4double lowEnergyLimit; 177 152 178 // flags 153 // flags >> 154 G4bool inside; 179 G4bool singleScatteringMode; 155 G4bool singleScatteringMode; 180 G4bool isCombined; << 181 G4bool useSecondMoment; << 182 << 183 std::vector<G4double> xsecn; << 184 std::vector<G4double> prob; << 185 }; 156 }; 186 157 187 //....oooOO0OOooo........oooOO0OOooo........oo 158 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 188 //....oooOO0OOooo........oooOO0OOooo........oo 159 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 189 160 190 inline void G4WentzelVIModel::SetupParticle(co << 161 inline 191 { << 162 void G4WentzelVIModel::DefineMaterial(const G4MaterialCutsCouple* cup) 192 // Initialise mass and charge << 163 { 193 if(p != particle) { << 164 if(cup != currentCouple) { 194 particle = p; << 165 currentCouple = cup; 195 wokvi->SetupParticle(p); << 166 SetCurrentCouple(cup); 196 } << 167 currentMaterial = cup->GetMaterial(); 197 } << 168 currentMaterialIndex = currentCouple->GetIndex(); 198 << 199 //....oooOO0OOooo........oooOO0OOooo........oo << 200 << 201 inline void G4WentzelVIModel::SetFixedCut(G4do << 202 { << 203 fixedCut = val; << 204 } << 205 << 206 //....oooOO0OOooo........oooOO0OOooo........oo << 207 << 208 inline G4double G4WentzelVIModel::GetFixedCut( << 209 { << 210 return fixedCut; << 211 } << 212 << 213 //....oooOO0OOooo........oooOO0OOooo........oo << 214 << 215 inline void G4WentzelVIModel::SetWVICrossSecti << 216 { << 217 if(ptr != wokvi) { << 218 delete wokvi; << 219 wokvi = ptr; << 220 } 169 } 221 } 170 } 222 171 223 //....oooOO0OOooo........oooOO0OOooo........oo 172 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 224 173 225 inline G4WentzelOKandVIxSection* G4WentzelVIMo << 174 inline void G4WentzelVIModel::SetupParticle(const G4ParticleDefinition* p) 226 { << 227 return wokvi; << 228 } << 229 << 230 //....oooOO0OOooo........oooOO0OOooo........oo << 231 << 232 inline void G4WentzelVIModel::SetUseSecondMome << 233 { << 234 useSecondMoment = val; << 235 } << 236 << 237 //....oooOO0OOooo........oooOO0OOooo........oo << 238 << 239 inline G4bool G4WentzelVIModel::UseSecondMomen << 240 { << 241 return useSecondMoment; << 242 } << 243 << 244 //....oooOO0OOooo........oooOO0OOooo........oo << 245 << 246 inline G4PhysicsTable* G4WentzelVIModel::GetSe << 247 { << 248 return fSecondMoments; << 249 } << 250 << 251 //....oooOO0OOooo........oooOO0OOooo........oo << 252 << 253 inline G4double << 254 G4WentzelVIModel::SecondMoment(const G4Particl << 255 const G4MaterialCutsCouple* coupl << 256 G4double ekin) << 257 { 175 { 258 G4double x = 0.0; << 176 // Initialise mass and charge 259 if(useSecondMoment) { << 177 if(p != particle) { 260 DefineMaterial(couple); << 178 particle = p; 261 x = (fSecondMoments) ? << 179 wokvi->SetupParticle(p); 262 (*fSecondMoments)[(*theDensityIdx)[curre << 263 *(*theDensityFactor)[currentMaterialInde << 264 : ComputeSecondMoment(part, ekin); << 265 } 180 } 266 return x; << 267 } 181 } 268 182 269 //....oooOO0OOooo........oooOO0OOooo........oo 183 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 270 184 271 #endif 185 #endif 272 186 273 187