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25 // 25 //
>> 26 // $Id$
26 // 27 //
27 // ------------------------------------------- 28 // -------------------------------------------------------------------
28 // 29 //
29 // GEANT4 Class header file 30 // GEANT4 Class header file
30 // 31 //
31 // 32 //
32 // File name: G4eCoulombScatteringModel 33 // File name: G4eCoulombScatteringModel
33 // 34 //
34 // Author: Vladimir Ivanchenko 35 // Author: Vladimir Ivanchenko
35 // 36 //
36 // Creation date: 19.02.2006 37 // Creation date: 19.02.2006
37 // 38 //
38 // Modifications: 39 // Modifications:
39 // 01.08.06 V.Ivanchenko extend upper limit of 40 // 01.08.06 V.Ivanchenko extend upper limit of table to TeV and review the
40 // logic of building - only elements 41 // logic of building - only elements from G4ElementTable
41 // 08.08.06 V.Ivanchenko build internal table 42 // 08.08.06 V.Ivanchenko build internal table in ekin scale, introduce faclim
42 // 19.08.06 V.Ivanchenko add inline function S 43 // 19.08.06 V.Ivanchenko add inline function ScreeningParameter and
43 // make some members pro 44 // make some members protected
44 // 09.10.07 V.Ivanchenko reorganized methods, 45 // 09.10.07 V.Ivanchenko reorganized methods, add cut dependence in scattering off e-
45 // 09.06.08 V.Ivanchenko add SelectIsotope and 46 // 09.06.08 V.Ivanchenko add SelectIsotope and sampling of the recoil ion
46 // 17.06.09 C.Consoalndi modified SetupTarget 47 // 17.06.09 C.Consoalndi modified SetupTarget method - remove kinFactor
47 // 27.05.10 V.Ivanchenko added G4WentzelOKandV 48 // 27.05.10 V.Ivanchenko added G4WentzelOKandVIxSection class to
48 // compute cross sections and sam 49 // compute cross sections and sample scattering angle
49 // 50 //
50 // 51 //
51 // Class Description: 52 // Class Description:
52 // 53 //
53 // Implementation of eCoulombScattering of a c << 54 // Implementation of eCoulombScattering of pointlike charge particle
54 // on Atomic Nucleus for interval of scatterin 55 // on Atomic Nucleus for interval of scattering anles in Lab system
55 // thetaMin - ThetaMax. << 56 // thetaMin - ThetaMax, nucleus recoil is neglected.
56 // The model based on analysis of J.M.Fernan 57 // The model based on analysis of J.M.Fernandez-Varea et al.
57 // NIM B73(1993)447 originated from G.Wentzel 58 // NIM B73(1993)447 originated from G.Wentzel Z.Phys. 40(1927)590 with
58 // screening parameter from H.A.Bethe Phys. Re 59 // screening parameter from H.A.Bethe Phys. Rev. 89 (1953) 1256.
59 // 60 //
60 61
61 // ------------------------------------------- 62 // -------------------------------------------------------------------
62 // 63 //
63 64
64 #ifndef G4eCoulombScatteringModel_h 65 #ifndef G4eCoulombScatteringModel_h
65 #define G4eCoulombScatteringModel_h 1 66 #define G4eCoulombScatteringModel_h 1
66 67
67 #include "G4VEmModel.hh" 68 #include "G4VEmModel.hh"
68 #include "globals.hh" 69 #include "globals.hh"
69 #include "G4MaterialCutsCouple.hh" 70 #include "G4MaterialCutsCouple.hh"
70 #include "G4WentzelOKandVIxSection.hh" 71 #include "G4WentzelOKandVIxSection.hh"
71 72
72 class G4ParticleChangeForGamma; 73 class G4ParticleChangeForGamma;
73 class G4ParticleDefinition; 74 class G4ParticleDefinition;
74 class G4IonTable; << 75 class G4ParticleTable;
75 class G4NistManager; 76 class G4NistManager;
76 77
77 class G4eCoulombScatteringModel : public G4VEm 78 class G4eCoulombScatteringModel : public G4VEmModel
78 { 79 {
79 80
80 public: 81 public:
81 82
82 explicit G4eCoulombScatteringModel(G4bool co << 83 G4eCoulombScatteringModel(const G4String& nam = "eCoulombScattering");
83 84
84 ~G4eCoulombScatteringModel() override; << 85 virtual ~G4eCoulombScatteringModel();
85 86
86 void Initialise(const G4ParticleDefinition*, << 87 virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
87 88
88 void InitialiseLocal(const G4ParticleDefinit << 89 virtual G4double ComputeCrossSectionPerAtom(
89 G4VEmModel* masterModel <<
90 <<
91 G4double ComputeCrossSectionPerAtom( <<
92 const G4Partic 90 const G4ParticleDefinition*,
93 G4double kinEnergy, 91 G4double kinEnergy,
94 G4double Z, 92 G4double Z,
95 G4double A, 93 G4double A,
96 G4double cut, 94 G4double cut,
97 G4double emax) override; << 95 G4double emax);
98 <<
99 void SampleSecondaries(std::vector<G4Dynamic <<
100 const G4MaterialCutsCouple*, <<
101 const G4DynamicParticle*, <<
102 G4double tmin, <<
103 G4double maxEnergy) override; <<
104 96
105 G4double MinPrimaryEnergy(const G4Material*, << 97 virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
106 G4double) final; << 98 const G4MaterialCutsCouple*,
>> 99 const G4DynamicParticle*,
>> 100 G4double tmin,
>> 101 G4double maxEnergy);
107 102
108 // defines low energy limit of the model 103 // defines low energy limit of the model
109 inline void SetLowEnergyThreshold(G4double v 104 inline void SetLowEnergyThreshold(G4double val);
110 105
111 // user definition of low-energy threshold o 106 // user definition of low-energy threshold of recoil
112 inline void SetRecoilThreshold(G4double eth) 107 inline void SetRecoilThreshold(G4double eth);
113 108
114 // defines low energy limit on energy transf <<
115 inline void SetFixedCut(G4double); <<
116 <<
117 // low energy limit on energy transfer to at <<
118 inline G4double GetFixedCut() const; <<
119 <<
120 // hide assignment operator <<
121 G4eCoulombScatteringModel & operator= <<
122 (const G4eCoulombScatteringModel &right) = d <<
123 G4eCoulombScatteringModel(const G4eCoulombS <<
124 <<
125 protected: 109 protected:
126 110
127 inline void DefineMaterial(const G4MaterialC 111 inline void DefineMaterial(const G4MaterialCutsCouple*);
128 112
129 inline void SetupParticle(const G4ParticleDe 113 inline void SetupParticle(const G4ParticleDefinition*);
130 114
131 private: 115 private:
132 116
133 G4IonTable* theIonTable; << 117 // hide assignment operator
134 G4ParticleChangeForGamma* fParticleChange = << 118 G4eCoulombScatteringModel & operator=(const G4eCoulombScatteringModel &right);
>> 119 G4eCoulombScatteringModel(const G4eCoulombScatteringModel&);
>> 120
>> 121 protected:
>> 122
>> 123 G4ParticleTable* theParticleTable;
>> 124 G4ParticleChangeForGamma* fParticleChange;
135 G4WentzelOKandVIxSection* wokvi; 125 G4WentzelOKandVIxSection* wokvi;
136 G4NistManager* fNistManager; << 126 G4NistManager* fNistManager;
>> 127
>> 128 const std::vector<G4double>* pCuts;
137 129
138 const std::vector<G4double>* pCuts = nullptr << 130 const G4MaterialCutsCouple* currentCouple;
>> 131 const G4Material* currentMaterial;
>> 132 G4int currentMaterialIndex;
>> 133
>> 134 G4double cosThetaMin;
>> 135 G4double cosThetaMax;
>> 136 G4double cosTetMinNuc;
>> 137 G4double cosTetMaxNuc;
>> 138 G4double recoilThreshold;
>> 139 G4double elecRatio;
>> 140 G4double mass;
139 141
140 const G4ParticleDefinition* particle = nullp << 142 // projectile
>> 143 const G4ParticleDefinition* particle;
141 const G4ParticleDefinition* theProton; 144 const G4ParticleDefinition* theProton;
142 145
143 const G4MaterialCutsCouple* currentCouple = << 146 G4double lowEnergyThreshold;
144 const G4Material* currentMaterial = nullptr; <<
145 G4int currentMaterialIndex = 0; <<
146 <<
147 G4double cosThetaMin = 1.0; <<
148 G4double cosThetaMax = -1.0; <<
149 G4double recoilThreshold = 0.0; <<
150 G4double elecRatio = 0.0; <<
151 G4double fixedCut = -1.0; <<
152 G4double mass; <<
153 147
154 G4bool isCombined; << 148 private:
>> 149
>> 150 G4bool isInitialised;
155 }; 151 };
156 152
157 //....oooOO0OOooo........oooOO0OOooo........oo 153 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
158 154
159 inline 155 inline
160 void G4eCoulombScatteringModel::DefineMaterial 156 void G4eCoulombScatteringModel::DefineMaterial(const G4MaterialCutsCouple* cup)
161 { 157 {
162 if(cup != currentCouple) { 158 if(cup != currentCouple) {
163 currentCouple = cup; 159 currentCouple = cup;
164 currentMaterial = cup->GetMaterial(); 160 currentMaterial = cup->GetMaterial();
165 currentMaterialIndex = currentCouple->GetI 161 currentMaterialIndex = currentCouple->GetIndex();
166 } 162 }
167 } 163 }
168 164
169 //....oooOO0OOooo........oooOO0OOooo........oo 165 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
170 166
171 inline 167 inline
172 void G4eCoulombScatteringModel::SetupParticle( 168 void G4eCoulombScatteringModel::SetupParticle(const G4ParticleDefinition* p)
173 { 169 {
174 // Initialise mass and charge 170 // Initialise mass and charge
175 if(p != particle) { 171 if(p != particle) {
176 particle = p; 172 particle = p;
177 mass = particle->GetPDGMass(); 173 mass = particle->GetPDGMass();
178 wokvi->SetupParticle(p); 174 wokvi->SetupParticle(p);
179 } 175 }
180 } 176 }
181 177
182 //....oooOO0OOooo........oooOO0OOooo........oo 178 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
183 179
184 inline void G4eCoulombScatteringModel::SetReco << 180 inline void G4eCoulombScatteringModel::SetLowEnergyThreshold(G4double val)
185 { 181 {
186 recoilThreshold = eth; << 182 lowEnergyThreshold = val;
187 } 183 }
188 184
189 //....oooOO0OOooo........oooOO0OOooo........oo 185 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
190 186
191 inline void G4eCoulombScatteringModel::SetFixe << 187 inline void G4eCoulombScatteringModel::SetRecoilThreshold(G4double eth)
192 { <<
193 fixedCut = val; <<
194 } <<
195 <<
196 //....oooOO0OOooo........oooOO0OOooo........oo <<
197 <<
198 inline G4double G4eCoulombScatteringModel::Get <<
199 { 188 {
200 return fixedCut; << 189 recoilThreshold = eth;
201 } 190 }
202 191
203 //....oooOO0OOooo........oooOO0OOooo........oo 192 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
204 193
205 #endif 194 #endif
206 195