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>> 26 // $Id: G4WentzelVIModel.hh 74726 2013-10-21 08:42:46Z 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
>> 64 class G4ParticleDefinition;
>> 65 class G4LossTableManager;
>> 66
63 //....oooOO0OOooo........oooOO0OOooo........oo 67 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64 68
65 class G4WentzelVIModel : public G4VMscModel 69 class G4WentzelVIModel : public G4VMscModel
66 { 70 {
67 71
68 public: 72 public:
69 73
70 explicit G4WentzelVIModel(G4bool comb=true, << 74 G4WentzelVIModel(const G4String& nam = "WentzelVIUni");
71 <<
72 ~G4WentzelVIModel() override; <<
73 75
74 void Initialise(const G4ParticleDefinition*, << 76 virtual ~G4WentzelVIModel();
75 77
76 void InitialiseLocal(const G4ParticleDefinit << 78 virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
77 G4VEmModel* masterModel) override; <<
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 <<
108 G4WentzelOKandVIxSection* GetWVICrossSection <<
109 <<
110 void SetUseSecondMoment(G4bool); <<
111 <<
112 G4bool UseSecondMoment() const; <<
113 <<
114 G4PhysicsTable* GetSecondMomentTable(); <<
115 <<
116 G4double SecondMoment(const G4ParticleDefini <<
117 const G4MaterialCutsCouple*, <<
118 G4double kineticEnergy); <<
119 <<
120 void SetSingleScatteringFactor(G4double); <<
121 107
122 void DefineMaterial(const G4MaterialCutsCoup << 108 private:
123 <<
124 G4WentzelVIModel & operator=(const G4Wentzel <<
125 G4WentzelVIModel(const G4WentzelVIModel&) = <<
126 <<
127 protected: <<
128 109
129 G4double ComputeTransportXSectionPerVolume(G << 110 G4double ComputeXSectionPerVolume();
130 111
131 inline void SetupParticle(const G4ParticleDe 112 inline void SetupParticle(const G4ParticleDefinition*);
132 113
133 private: << 114 inline void DefineMaterial(const G4MaterialCutsCouple*);
134 115
135 G4double ComputeSecondMoment(const G4Particl << 116 // hide assignment operator
136 G4double kineticEnergy); << 117 G4WentzelVIModel & operator=(const G4WentzelVIModel &right);
137 << 118 G4WentzelVIModel(const G4WentzelVIModel&);
138 protected: <<
139 119
>> 120 G4LossTableManager* theManager;
>> 121 G4ParticleChangeForMSC* fParticleChange;
140 G4WentzelOKandVIxSection* wokvi; 122 G4WentzelOKandVIxSection* wokvi;
141 const G4MaterialCutsCouple* currentCouple = <<
142 const G4Material* currentMaterial = nullptr; <<
143 123
144 const G4ParticleDefinition* particle = nullp << 124 const G4DataVector* currentCuts;
145 G4ParticleChangeForMSC* fParticleChange = nu <<
146 const G4DataVector* currentCuts = nullptr; <<
147 G4PhysicsTable* fSecondMoments = nullptr; <<
148 125
149 G4double lowEnergyLimit; <<
150 G4double tlimitminfix; 126 G4double tlimitminfix;
151 G4double ssFactor = 1.05; << 127 G4double invsqrt12;
152 G4double invssFactor = 1.0; << 128 G4double fixedCut;
153 129
154 // cache kinematics 130 // cache kinematics
155 G4double preKinEnergy = 0.0; << 131 G4double preKinEnergy;
156 G4double tPathLength = 0.0; << 132 G4double tPathLength;
157 G4double zPathLength = 0.0; << 133 G4double zPathLength;
158 G4double lambdaeff = 0.0; << 134 G4double lambdaeff;
159 G4double currentRange = 0.0; << 135 G4double currentRange;
160 G4double cosTetMaxNuc = 0.0; <<
161 136
162 G4double fixedCut = -1.0; << 137 // data for single scattering mode
>> 138 G4double xtsec;
>> 139 std::vector<G4double> xsecn;
>> 140 std::vector<G4double> prob;
>> 141 G4int nelments;
163 142
164 // cache kinematics << 143 G4double numlimit;
165 G4double effKinEnergy = 0.0; <<
166 144
167 // single scattering parameters << 145 // cache material
168 G4double cosThetaMin = 1.0; << 146 G4int currentMaterialIndex;
169 G4double cosThetaMax = -1.0; << 147 const G4MaterialCutsCouple* currentCouple;
170 G4double xtsec = 0.0; << 148 const G4Material* currentMaterial;
171 149
172 G4int currentMaterialIndex = 0; << 150 // single scattering parameters
173 size_t idx2 = 0; << 151 G4double cosThetaMin;
>> 152 G4double cosThetaMax;
>> 153 G4double cosTetMaxNuc;
174 154
175 // data for single scattering mode << 155 // projectile
176 G4int nelments = 0; << 156 const G4ParticleDefinition* particle;
>> 157 G4double lowEnergyLimit;
177 158
178 // flags 159 // flags
>> 160 G4bool inside;
179 G4bool singleScatteringMode; 161 G4bool singleScatteringMode;
180 G4bool isCombined; <<
181 G4bool useSecondMoment; <<
182 <<
183 std::vector<G4double> xsecn; <<
184 std::vector<G4double> prob; <<
185 }; 162 };
186 163
187 //....oooOO0OOooo........oooOO0OOooo........oo 164 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
188 //....oooOO0OOooo........oooOO0OOooo........oo 165 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
189 166
>> 167 inline
>> 168 void G4WentzelVIModel::DefineMaterial(const G4MaterialCutsCouple* cup)
>> 169 {
>> 170 if(cup != currentCouple) {
>> 171 currentCouple = cup;
>> 172 SetCurrentCouple(cup);
>> 173 currentMaterial = cup->GetMaterial();
>> 174 currentMaterialIndex = currentCouple->GetIndex();
>> 175 }
>> 176 }
>> 177
>> 178 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 179
190 inline void G4WentzelVIModel::SetupParticle(co 180 inline void G4WentzelVIModel::SetupParticle(const G4ParticleDefinition* p)
191 { 181 {
192 // Initialise mass and charge 182 // Initialise mass and charge
193 if(p != particle) { 183 if(p != particle) {
194 particle = p; 184 particle = p;
195 wokvi->SetupParticle(p); 185 wokvi->SetupParticle(p);
196 } 186 }
197 } 187 }
198 188
199 //....oooOO0OOooo........oooOO0OOooo........oo 189 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
200 190
201 inline void G4WentzelVIModel::SetFixedCut(G4do 191 inline void G4WentzelVIModel::SetFixedCut(G4double val)
202 { 192 {
203 fixedCut = val; 193 fixedCut = val;
204 } 194 }
205 195
206 //....oooOO0OOooo........oooOO0OOooo........oo 196 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
207 197
208 inline G4double G4WentzelVIModel::GetFixedCut( 198 inline G4double G4WentzelVIModel::GetFixedCut() const
209 { 199 {
210 return fixedCut; 200 return fixedCut;
211 } 201 }
212 202
213 //....oooOO0OOooo........oooOO0OOooo........oo 203 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
214 204
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 205 inline G4WentzelOKandVIxSection* G4WentzelVIModel::GetWVICrossSection()
226 { 206 {
227 return wokvi; 207 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 { <<
258 G4double x = 0.0; <<
259 if(useSecondMoment) { <<
260 DefineMaterial(couple); <<
261 x = (fSecondMoments) ? <<
262 (*fSecondMoments)[(*theDensityIdx)[curre <<
263 *(*theDensityFactor)[currentMaterialInde <<
264 : ComputeSecondMoment(part, ekin); <<
265 } <<
266 return x; <<
267 } 208 }
268 209
269 //....oooOO0OOooo........oooOO0OOooo........oo 210 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
270 211
271 #endif 212 #endif
272 213
273 214