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