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25 // 25 //
>> 26 // $Id: G4WentzelVIModel.hh 89893 2015-05-04 07:29:17Z gcosmo $
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
63 //....oooOO0OOooo........oooOO0OOooo........oo 64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64 65
65 class G4WentzelVIModel : public G4VMscModel 66 class G4WentzelVIModel : public G4VMscModel
66 { 67 {
67 68
68 public: 69 public:
69 70
70 explicit G4WentzelVIModel(G4bool comb=true, << 71 G4WentzelVIModel(G4bool comb = true, const G4String& nam = "WentzelVIUni");
71 72
72 ~G4WentzelVIModel() override; << 73 virtual ~G4WentzelVIModel();
73 74
74 void Initialise(const G4ParticleDefinition*, << 75 virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
75 76
76 void InitialiseLocal(const G4ParticleDefinit << 77 virtual void InitialiseLocal(const G4ParticleDefinition*,
77 G4VEmModel* masterModel) override; << 78 G4VEmModel* masterModel);
78 79
79 void StartTracking(G4Track*) override; << 80 void StartTracking(G4Track*);
80 81
81 G4double ComputeCrossSectionPerAtom(const G4 << 82 virtual G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*,
82 G4double KineticEnergy, << 83 G4double KineticEnergy,
83 G4double AtomicNumber, << 84 G4double AtomicNumber,
84 G4double AtomicWeight=0., << 85 G4double AtomicWeight=0.,
85 G4double cut = DBL_MAX, << 86 G4double cut = DBL_MAX,
86 G4double emax= DBL_MAX) override << 87 G4double emax= DBL_MAX);
87 88
88 G4ThreeVector& SampleScattering(const G4Thre << 89 virtual G4ThreeVector& SampleScattering(const G4ThreeVector&,
89 G4double safety) override; << 90 G4double safety);
90 91
91 G4double << 92 virtual G4double ComputeTruePathLengthLimit(const G4Track& track,
92 ComputeTruePathLengthLimit(const G4Track& tr << 93 G4double& currentMinimalStep);
93 G4double& currentMinimalStep) overr <<
94 94
95 G4double ComputeGeomPathLength(G4double true << 95 virtual G4double ComputeGeomPathLength(G4double truePathLength);
96 96
97 G4double ComputeTrueStepLength(G4double geom << 97 virtual G4double ComputeTrueStepLength(G4double geomStepLength);
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 inline 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 inline G4double GetFixedCut() const;
104 104
105 // access to cross section class 105 // access to cross section class
106 void SetWVICrossSection(G4WentzelOKandVIxSec << 106 inline G4WentzelOKandVIxSection* GetWVICrossSection();
107 107
108 G4WentzelOKandVIxSection* GetWVICrossSection << 108 inline void SetUseSecondMoment(G4bool);
109 109
110 void SetUseSecondMoment(G4bool); << 110 inline G4bool UseSecondMoment() const;
111 111
112 G4bool UseSecondMoment() const; << 112 inline G4PhysicsTable* GetSecondMomentTable();
113 113
114 G4PhysicsTable* GetSecondMomentTable(); << 114 inline G4double SecondMoment(const G4ParticleDefinition*,
115 << 115 const G4MaterialCutsCouple*,
116 G4double SecondMoment(const G4ParticleDefini << 116 G4double kineticEnergy);
117 const G4MaterialCutsCouple*, <<
118 G4double kineticEnergy); <<
119 117
120 void SetSingleScatteringFactor(G4double); 118 void SetSingleScatteringFactor(G4double);
121 119
122 void DefineMaterial(const G4MaterialCutsCoup <<
123 <<
124 G4WentzelVIModel & operator=(const G4Wentzel <<
125 G4WentzelVIModel(const G4WentzelVIModel&) = <<
126 <<
127 protected: 120 protected:
128 121
129 G4double ComputeTransportXSectionPerVolume(G << 122 inline void DefineMaterial(const G4MaterialCutsCouple*);
130 <<
131 inline void SetupParticle(const G4ParticleDe <<
132 123
133 private: 124 private:
134 125
>> 126 G4double ComputeTransportXSectionPerVolume(G4double cosTheta);
>> 127
135 G4double ComputeSecondMoment(const G4Particl 128 G4double ComputeSecondMoment(const G4ParticleDefinition*,
136 G4double kineticEnergy); 129 G4double kineticEnergy);
137 130
>> 131 inline void SetupParticle(const G4ParticleDefinition*);
>> 132
>> 133 // hide assignment operator
>> 134 G4WentzelVIModel & operator=(const G4WentzelVIModel &right);
>> 135 G4WentzelVIModel(const G4WentzelVIModel&);
>> 136
138 protected: 137 protected:
139 138
140 G4WentzelOKandVIxSection* wokvi; 139 G4WentzelOKandVIxSection* wokvi;
141 const G4MaterialCutsCouple* currentCouple = <<
142 const G4Material* currentMaterial = nullptr; <<
143 <<
144 const G4ParticleDefinition* particle = nullp <<
145 G4ParticleChangeForMSC* fParticleChange = nu <<
146 const G4DataVector* currentCuts = nullptr; <<
147 G4PhysicsTable* fSecondMoments = nullptr; <<
148 140
149 G4double lowEnergyLimit; <<
150 G4double tlimitminfix; 141 G4double tlimitminfix;
151 G4double ssFactor = 1.05; << 142 G4double ssFactor;
152 G4double invssFactor = 1.0; << 143 G4double invssFactor;
153 144
154 // cache kinematics 145 // cache kinematics
155 G4double preKinEnergy = 0.0; << 146 G4double preKinEnergy;
156 G4double tPathLength = 0.0; << 147 G4double tPathLength;
157 G4double zPathLength = 0.0; << 148 G4double zPathLength;
158 G4double lambdaeff = 0.0; << 149 G4double lambdaeff;
159 G4double currentRange = 0.0; << 150 G4double currentRange;
160 G4double cosTetMaxNuc = 0.0; << 151 G4double cosTetMaxNuc;
>> 152
>> 153 // cache material
>> 154 G4int currentMaterialIndex;
>> 155 const G4MaterialCutsCouple* currentCouple;
>> 156 const G4Material* currentMaterial;
>> 157
>> 158 const G4ParticleDefinition* particle;
>> 159
>> 160 // flags
>> 161 G4bool singleScatteringMode;
>> 162
>> 163 private:
>> 164
>> 165 G4ParticleChangeForMSC* fParticleChange;
>> 166 const G4DataVector* currentCuts;
161 167
162 G4double fixedCut = -1.0; << 168 G4double invsqrt12;
>> 169 G4double fixedCut;
163 170
164 // cache kinematics 171 // cache kinematics
165 G4double effKinEnergy = 0.0; << 172 G4double effKinEnergy;
166 173
167 // single scattering parameters 174 // single scattering parameters
168 G4double cosThetaMin = 1.0; << 175 G4double cosThetaMin;
169 G4double cosThetaMax = -1.0; << 176 G4double cosThetaMax;
170 G4double xtsec = 0.0; <<
171 177
172 G4int currentMaterialIndex = 0; << 178 G4PhysicsTable* fSecondMoments;
173 size_t idx2 = 0; << 179 size_t idx2;
174 180
175 // data for single scattering mode 181 // data for single scattering mode
176 G4int nelments = 0; << 182 G4double xtsec;
>> 183 std::vector<G4double> xsecn;
>> 184 std::vector<G4double> prob;
>> 185 G4int nelments;
>> 186
>> 187 G4double numlimit;
>> 188
>> 189 // projectile
>> 190 G4double lowEnergyLimit;
177 191
178 // flags 192 // flags
179 G4bool singleScatteringMode; <<
180 G4bool isCombined; 193 G4bool isCombined;
181 G4bool useSecondMoment; 194 G4bool useSecondMoment;
182 <<
183 std::vector<G4double> xsecn; <<
184 std::vector<G4double> prob; <<
185 }; 195 };
186 196
187 //....oooOO0OOooo........oooOO0OOooo........oo 197 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
188 //....oooOO0OOooo........oooOO0OOooo........oo 198 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
189 199
>> 200 inline
>> 201 void G4WentzelVIModel::DefineMaterial(const G4MaterialCutsCouple* cup)
>> 202 {
>> 203 if(cup != currentCouple) {
>> 204 currentCouple = cup;
>> 205 SetCurrentCouple(cup);
>> 206 currentMaterial = cup->GetMaterial();
>> 207 currentMaterialIndex = currentCouple->GetIndex();
>> 208 }
>> 209 }
>> 210
>> 211 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 212
190 inline void G4WentzelVIModel::SetupParticle(co 213 inline void G4WentzelVIModel::SetupParticle(const G4ParticleDefinition* p)
191 { 214 {
192 // Initialise mass and charge 215 // Initialise mass and charge
193 if(p != particle) { 216 if(p != particle) {
194 particle = p; 217 particle = p;
195 wokvi->SetupParticle(p); 218 wokvi->SetupParticle(p);
196 } 219 }
197 } 220 }
198 221
199 //....oooOO0OOooo........oooOO0OOooo........oo 222 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
200 223
201 inline void G4WentzelVIModel::SetFixedCut(G4do 224 inline void G4WentzelVIModel::SetFixedCut(G4double val)
202 { 225 {
203 fixedCut = val; 226 fixedCut = val;
204 } 227 }
205 228
206 //....oooOO0OOooo........oooOO0OOooo........oo 229 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
207 230
208 inline G4double G4WentzelVIModel::GetFixedCut( 231 inline G4double G4WentzelVIModel::GetFixedCut() const
209 { 232 {
210 return fixedCut; 233 return fixedCut;
211 } 234 }
212 235
213 //....oooOO0OOooo........oooOO0OOooo........oo 236 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
214 237
215 inline void G4WentzelVIModel::SetWVICrossSecti <<
216 { <<
217 if(ptr != wokvi) { <<
218 delete wokvi; <<
219 wokvi = ptr; <<
220 } <<
221 } <<
222 <<
223 //....oooOO0OOooo........oooOO0OOooo........oo <<
224 <<
225 inline G4WentzelOKandVIxSection* G4WentzelVIMo 238 inline G4WentzelOKandVIxSection* G4WentzelVIModel::GetWVICrossSection()
226 { 239 {
227 return wokvi; 240 return wokvi;
228 } 241 }
229 242
230 //....oooOO0OOooo........oooOO0OOooo........oo 243 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
231 244
232 inline void G4WentzelVIModel::SetUseSecondMome 245 inline void G4WentzelVIModel::SetUseSecondMoment(G4bool val)
233 { 246 {
234 useSecondMoment = val; 247 useSecondMoment = val;
235 } 248 }
236 249
237 //....oooOO0OOooo........oooOO0OOooo........oo 250 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
238 251
239 inline G4bool G4WentzelVIModel::UseSecondMomen 252 inline G4bool G4WentzelVIModel::UseSecondMoment() const
240 { 253 {
241 return useSecondMoment; 254 return useSecondMoment;
242 } 255 }
243 256
244 //....oooOO0OOooo........oooOO0OOooo........oo 257 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
245 258
246 inline G4PhysicsTable* G4WentzelVIModel::GetSe 259 inline G4PhysicsTable* G4WentzelVIModel::GetSecondMomentTable()
247 { 260 {
248 return fSecondMoments; 261 return fSecondMoments;
249 } 262 }
250 263
251 //....oooOO0OOooo........oooOO0OOooo........oo 264 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
252 265
253 inline G4double 266 inline G4double
254 G4WentzelVIModel::SecondMoment(const G4Particl 267 G4WentzelVIModel::SecondMoment(const G4ParticleDefinition* part,
255 const G4MaterialCutsCouple* coupl 268 const G4MaterialCutsCouple* couple,
256 G4double ekin) 269 G4double ekin)
257 { 270 {
258 G4double x = 0.0; 271 G4double x = 0.0;
259 if(useSecondMoment) { 272 if(useSecondMoment) {
260 DefineMaterial(couple); 273 DefineMaterial(couple);
261 x = (fSecondMoments) ? << 274 if(fSecondMoments) {
262 (*fSecondMoments)[(*theDensityIdx)[curre << 275 x = (*fSecondMoments)[(*theDensityIdx)[currentMaterialIndex]]
263 *(*theDensityFactor)[currentMaterialInde << 276 ->Value(ekin, idx2)
264 : ComputeSecondMoment(part, ekin); << 277 *(*theDensityFactor)[currentMaterialIndex]/(ekin*ekin);
>> 278 } else {
>> 279 x = ComputeSecondMoment(part, ekin);
>> 280 }
265 } 281 }
266 return x; 282 return x;
267 } 283 }
268 284
269 //....oooOO0OOooo........oooOO0OOooo........oo 285 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
270 286
271 #endif 287 #endif
272 288
273 289