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>> 26 // $Id: G4WentzelVIModel.hh 104307 2017-05-24 09:01:45Z 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 explicit 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*,
>> 76 const G4DataVector&) override;
75 77
76 void InitialiseLocal(const G4ParticleDefinit << 78 virtual void InitialiseLocal(const G4ParticleDefinition*,
77 G4VEmModel* masterModel) override; << 79 G4VEmModel* masterModel) override;
78 80
79 void StartTracking(G4Track*) override; << 81 virtual void StartTracking(G4Track*) override;
80 82
81 G4double ComputeCrossSectionPerAtom(const G4 << 83 virtual G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*,
82 G4double KineticEnergy, << 84 G4double KineticEnergy,
83 G4double AtomicNumber, << 85 G4double AtomicNumber,
84 G4double AtomicWeight=0., << 86 G4double AtomicWeight=0.,
85 G4double cut = DBL_MAX, << 87 G4double cut = DBL_MAX,
86 G4double emax= DBL_MAX) override << 88 G4double emax= DBL_MAX) override;
87 89
88 G4ThreeVector& SampleScattering(const G4Thre << 90 virtual G4ThreeVector& SampleScattering(const G4ThreeVector&,
89 G4double safety) override; << 91 G4double safety) override;
90 92
91 G4double << 93 virtual G4double
92 ComputeTruePathLengthLimit(const G4Track& tr 94 ComputeTruePathLengthLimit(const G4Track& track,
93 G4double& currentMinimalStep) overr 95 G4double& currentMinimalStep) override;
94 96
95 G4double ComputeGeomPathLength(G4double true << 97 virtual G4double ComputeGeomPathLength(G4double truePathLength) override;
96 98
97 G4double ComputeTrueStepLength(G4double geom << 99 virtual G4double ComputeTrueStepLength(G4double geomStepLength) override;
98 100
99 // defines low energy limit on energy transf 101 // defines low energy limit on energy transfer to atomic electron
100 void SetFixedCut(G4double); << 102 inline void SetFixedCut(G4double);
101 103
102 // low energy limit on energy transfer to at 104 // low energy limit on energy transfer to atomic electron
103 G4double GetFixedCut() const; << 105 inline G4double GetFixedCut() const;
104 106
105 // access to cross section class 107 // access to cross section class
106 void SetWVICrossSection(G4WentzelOKandVIxSec << 108 inline void SetWVICrossSection(G4WentzelOKandVIxSection*);
107 109
108 G4WentzelOKandVIxSection* GetWVICrossSection << 110 inline G4WentzelOKandVIxSection* GetWVICrossSection();
109 111
110 void SetUseSecondMoment(G4bool); << 112 inline void SetUseSecondMoment(G4bool);
111 113
112 G4bool UseSecondMoment() const; << 114 inline G4bool UseSecondMoment() const;
113 115
114 G4PhysicsTable* GetSecondMomentTable(); << 116 inline G4PhysicsTable* GetSecondMomentTable();
115 117
116 G4double SecondMoment(const G4ParticleDefini << 118 inline G4double SecondMoment(const G4ParticleDefinition*,
117 const G4MaterialCutsCouple*, << 119 const G4MaterialCutsCouple*,
118 G4double kineticEnergy); << 120 G4double kineticEnergy);
119 121
120 void SetSingleScatteringFactor(G4double); 122 void SetSingleScatteringFactor(G4double);
121 123
122 void DefineMaterial(const G4MaterialCutsCoup 124 void DefineMaterial(const G4MaterialCutsCouple*);
123 125
124 G4WentzelVIModel & operator=(const G4Wentzel <<
125 G4WentzelVIModel(const G4WentzelVIModel&) = <<
126 <<
127 protected: 126 protected:
128 127
129 G4double ComputeTransportXSectionPerVolume(G 128 G4double ComputeTransportXSectionPerVolume(G4double cosTheta);
130 129
131 inline void SetupParticle(const G4ParticleDe 130 inline void SetupParticle(const G4ParticleDefinition*);
132 131
133 private: 132 private:
134 133
135 G4double ComputeSecondMoment(const G4Particl 134 G4double ComputeSecondMoment(const G4ParticleDefinition*,
136 G4double kineticEnergy); 135 G4double kineticEnergy);
137 136
>> 137 // hide assignment operator
>> 138 G4WentzelVIModel & operator=(const G4WentzelVIModel &right) = delete;
>> 139 G4WentzelVIModel(const G4WentzelVIModel&) = delete;
>> 140
138 protected: 141 protected:
139 142
140 G4WentzelOKandVIxSection* wokvi; 143 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; <<
148 144
149 G4double lowEnergyLimit; <<
150 G4double tlimitminfix; 145 G4double tlimitminfix;
151 G4double ssFactor = 1.05; << 146 G4double ssFactor;
152 G4double invssFactor = 1.0; << 147 G4double invssFactor;
153 148
154 // cache kinematics 149 // cache kinematics
155 G4double preKinEnergy = 0.0; << 150 G4double preKinEnergy;
156 G4double tPathLength = 0.0; << 151 G4double tPathLength;
157 G4double zPathLength = 0.0; << 152 G4double zPathLength;
158 G4double lambdaeff = 0.0; << 153 G4double lambdaeff;
159 G4double currentRange = 0.0; << 154 G4double currentRange;
160 G4double cosTetMaxNuc = 0.0; << 155 G4double cosTetMaxNuc;
>> 156
>> 157 // cache material
>> 158 G4int currentMaterialIndex;
>> 159 const G4MaterialCutsCouple* currentCouple;
>> 160 const G4Material* currentMaterial;
>> 161
>> 162 const G4ParticleDefinition* particle;
>> 163 G4ParticleChangeForMSC* fParticleChange;
>> 164 const G4DataVector* currentCuts;
161 165
162 G4double fixedCut = -1.0; << 166 G4double invsqrt12;
>> 167 G4double fixedCut;
163 168
164 // cache kinematics 169 // cache kinematics
165 G4double effKinEnergy = 0.0; << 170 G4double effKinEnergy;
166 171
167 // single scattering parameters 172 // single scattering parameters
168 G4double cosThetaMin = 1.0; << 173 G4double cosThetaMin;
169 G4double cosThetaMax = -1.0; << 174 G4double cosThetaMax;
170 G4double xtsec = 0.0; <<
171 175
172 G4int currentMaterialIndex = 0; << 176 G4PhysicsTable* fSecondMoments;
173 size_t idx2 = 0; << 177 size_t idx2;
174 178
175 // data for single scattering mode 179 // data for single scattering mode
176 G4int nelments = 0; << 180 G4int minNCollisions;
>> 181 G4int nelments;
>> 182 std::vector<G4double> xsecn;
>> 183 std::vector<G4double> prob;
>> 184
>> 185 G4double xtsec;
>> 186 G4double numlimit;
>> 187
>> 188 // projectile
>> 189 G4double lowEnergyLimit;
177 190
178 // flags 191 // flags
179 G4bool singleScatteringMode; 192 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
190 inline void G4WentzelVIModel::SetupParticle(co 200 inline void G4WentzelVIModel::SetupParticle(const G4ParticleDefinition* p)
191 { 201 {
192 // Initialise mass and charge 202 // Initialise mass and charge
193 if(p != particle) { 203 if(p != particle) {
194 particle = p; 204 particle = p;
195 wokvi->SetupParticle(p); 205 wokvi->SetupParticle(p);
196 } 206 }
197 } 207 }
198 208
199 //....oooOO0OOooo........oooOO0OOooo........oo 209 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
200 210
201 inline void G4WentzelVIModel::SetFixedCut(G4do 211 inline void G4WentzelVIModel::SetFixedCut(G4double val)
202 { 212 {
203 fixedCut = val; 213 fixedCut = val;
204 } 214 }
205 215
206 //....oooOO0OOooo........oooOO0OOooo........oo 216 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
207 217
208 inline G4double G4WentzelVIModel::GetFixedCut( 218 inline G4double G4WentzelVIModel::GetFixedCut() const
209 { 219 {
210 return fixedCut; 220 return fixedCut;
211 } 221 }
212 222
213 //....oooOO0OOooo........oooOO0OOooo........oo 223 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
214 224
215 inline void G4WentzelVIModel::SetWVICrossSecti 225 inline void G4WentzelVIModel::SetWVICrossSection(G4WentzelOKandVIxSection* ptr)
216 { 226 {
217 if(ptr != wokvi) { 227 if(ptr != wokvi) {
218 delete wokvi; 228 delete wokvi;
219 wokvi = ptr; 229 wokvi = ptr;
220 } 230 }
221 } 231 }
222 232
223 //....oooOO0OOooo........oooOO0OOooo........oo 233 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
224 234
225 inline G4WentzelOKandVIxSection* G4WentzelVIMo 235 inline G4WentzelOKandVIxSection* G4WentzelVIModel::GetWVICrossSection()
226 { 236 {
227 return wokvi; 237 return wokvi;
228 } 238 }
229 239
230 //....oooOO0OOooo........oooOO0OOooo........oo 240 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
231 241
232 inline void G4WentzelVIModel::SetUseSecondMome 242 inline void G4WentzelVIModel::SetUseSecondMoment(G4bool val)
233 { 243 {
234 useSecondMoment = val; 244 useSecondMoment = val;
235 } 245 }
236 246
237 //....oooOO0OOooo........oooOO0OOooo........oo 247 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
238 248
239 inline G4bool G4WentzelVIModel::UseSecondMomen 249 inline G4bool G4WentzelVIModel::UseSecondMoment() const
240 { 250 {
241 return useSecondMoment; 251 return useSecondMoment;
242 } 252 }
243 253
244 //....oooOO0OOooo........oooOO0OOooo........oo 254 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
245 255
246 inline G4PhysicsTable* G4WentzelVIModel::GetSe 256 inline G4PhysicsTable* G4WentzelVIModel::GetSecondMomentTable()
247 { 257 {
248 return fSecondMoments; 258 return fSecondMoments;
249 } 259 }
250 260
251 //....oooOO0OOooo........oooOO0OOooo........oo 261 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
252 262
253 inline G4double 263 inline G4double
254 G4WentzelVIModel::SecondMoment(const G4Particl 264 G4WentzelVIModel::SecondMoment(const G4ParticleDefinition* part,
255 const G4MaterialCutsCouple* coupl 265 const G4MaterialCutsCouple* couple,
256 G4double ekin) 266 G4double ekin)
257 { 267 {
258 G4double x = 0.0; 268 G4double x = 0.0;
259 if(useSecondMoment) { 269 if(useSecondMoment) {
260 DefineMaterial(couple); 270 DefineMaterial(couple);
261 x = (fSecondMoments) ? 271 x = (fSecondMoments) ?
262 (*fSecondMoments)[(*theDensityIdx)[curre 272 (*fSecondMoments)[(*theDensityIdx)[currentMaterialIndex]]->Value(ekin, idx2)
263 *(*theDensityFactor)[currentMaterialInde 273 *(*theDensityFactor)[currentMaterialIndex]/(ekin*ekin)
264 : ComputeSecondMoment(part, ekin); 274 : ComputeSecondMoment(part, ekin);
265 } 275 }
266 return x; 276 return x;
267 } 277 }
268 278
269 //....oooOO0OOooo........oooOO0OOooo........oo 279 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
270 280
271 #endif 281 #endif
272 282
273 283