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25 //
26 //
27 // -------------------------------------------
28 //
29 // GEANT4 Class header file
30 //
31 //
32 // File name: G4hCoulombScatteringModel
33 //
34 // Author: Vladimir Ivanchenko
35 //
36 // Creation date: 08.06.2012 from G4eCoulombSc
37 //
38 // Modifications:
39 //
40 // Class Description:
41 //
42 // Implementation of Coulomb Scattering of a c
43 // on Atomic Nucleus for interval of scatterin
44 // thetaMin - ThetaMax.
45 // The model based on analysis of J.M.Fernan
46 // NIM B73(1993)447 originated from G.Wentzel
47 // screening parameter from H.A.Bethe Phys. Re
48 //
49
50 // -------------------------------------------
51 //
52
53 #ifndef G4hCoulombScatteringModel_h
54 #define G4hCoulombScatteringModel_h 1
55
56 #include "G4VEmModel.hh"
57 #include "globals.hh"
58 #include "G4MaterialCutsCouple.hh"
59 #include "G4WentzelVIRelXSection.hh"
60
61 class G4ParticleChangeForGamma;
62 class G4ParticleDefinition;
63 class G4IonTable;
64 class G4NistManager;
65
66 class G4hCoulombScatteringModel : public G4VEm
67 {
68
69 public:
70
71 explicit G4hCoulombScatteringModel(G4bool co
72
73 ~G4hCoulombScatteringModel() override;
74
75 void Initialise(const G4ParticleDefinition*,
76
77 void InitialiseLocal(const G4ParticleDefinit
78 G4VEmModel* masterModel
79
80 G4double ComputeCrossSectionPerAtom(
81 const G4Partic
82 G4double kinEnergy,
83 G4double Z,
84 G4double A,
85 G4double cut,
86 G4double emax) override;
87
88 void SampleSecondaries(std::vector<G4Dynamic
89 const G4MaterialCutsCouple*,
90 const G4DynamicParticle*,
91 G4double tmin,
92 G4double maxEnergy) override;
93
94 G4double MinPrimaryEnergy(const G4Material*,
95 const G4ParticleDefinition*,
96 G4double) final;
97
98 // defines low energy limit of the model
99 inline void SetLowEnergyThreshold(G4double v
100
101 // user definition of low-energy threshold o
102 inline void SetRecoilThreshold(G4double eth)
103
104 // defines low energy limit on energy transf
105 inline void SetFixedCut(G4double);
106
107 // low energy limit on energy transfer to at
108 inline G4double GetFixedCut() const;
109
110 // hide assignment operator
111 G4hCoulombScatteringModel & operator=
112 (const G4hCoulombScatteringModel &right) = d
113 G4hCoulombScatteringModel(const G4hCoulombS
114
115 protected:
116
117 inline void DefineMaterial(const G4MaterialC
118
119 inline void SetupParticle(const G4ParticleDe
120
121 private:
122
123 G4IonTable* theIonTable;
124 G4ParticleChangeForGamma* fParticleChange;
125 G4WentzelVIRelXSection* wokvi;
126 G4NistManager* fNistManager;
127
128 const G4ParticleDefinition* particle;
129 const G4ParticleDefinition* theProton;
130 const std::vector<G4double>* pCuts;
131
132 const G4MaterialCutsCouple* currentCouple;
133 const G4Material* currentMaterial;
134 G4int currentMaterialI
135
136 G4double cosThetaMin;
137 G4double cosThetaMax;
138 G4double recoilThreshold;
139 G4double elecRatio;
140 G4double mass;
141
142 G4double fixedCut;
143
144 G4bool isCombined;
145 };
146
147 //....oooOO0OOooo........oooOO0OOooo........oo
148
149 inline
150 void G4hCoulombScatteringModel::DefineMaterial
151 {
152 if(cup != currentCouple) {
153 currentCouple = cup;
154 currentMaterial = cup->GetMaterial();
155 currentMaterialIndex = currentCouple->GetI
156 }
157 }
158
159 //....oooOO0OOooo........oooOO0OOooo........oo
160
161 inline
162 void G4hCoulombScatteringModel::SetupParticle(
163 {
164 // Initialise mass and charge
165 if(p != particle) {
166 particle = p;
167 mass = particle->GetPDGMass();
168 wokvi->SetupParticle(p);
169 }
170 }
171
172 //....oooOO0OOooo........oooOO0OOooo........oo
173
174 inline void G4hCoulombScatteringModel::SetReco
175 {
176 recoilThreshold = eth;
177 }
178
179 //....oooOO0OOooo........oooOO0OOooo........oo
180
181 inline void G4hCoulombScatteringModel::SetFixe
182 {
183 fixedCut = val;
184 }
185
186 //....oooOO0OOooo........oooOO0OOooo........oo
187
188 inline G4double G4hCoulombScatteringModel::Get
189 {
190 return fixedCut;
191 }
192
193 //....oooOO0OOooo........oooOO0OOooo........oo
194
195 #endif
196