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G4eCoulombScatteringModel.hh
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26 // $Id: G4eCoulombScatteringModel.hh 96934 2016-05-18 09:10:41Z gcosmo $
27 //
28 // -------------------------------------------------------------------
29 //
30 // GEANT4 Class header file
31 //
32 //
33 // File name: G4eCoulombScatteringModel
34 //
35 // Author: Vladimir Ivanchenko
36 //
37 // Creation date: 19.02.2006
38 //
39 // Modifications:
40 // 01.08.06 V.Ivanchenko extend upper limit of table to TeV and review the
41 // logic of building - only elements from G4ElementTable
42 // 08.08.06 V.Ivanchenko build internal table in ekin scale, introduce faclim
43 // 19.08.06 V.Ivanchenko add inline function ScreeningParameter and
44 // make some members protected
45 // 09.10.07 V.Ivanchenko reorganized methods, add cut dependence in scattering off e-
46 // 09.06.08 V.Ivanchenko add SelectIsotope and sampling of the recoil ion
47 // 17.06.09 C.Consoalndi modified SetupTarget method - remove kinFactor
48 // 27.05.10 V.Ivanchenko added G4WentzelOKandVIxSection class to
49 // compute cross sections and sample scattering angle
50 //
51 //
52 // Class Description:
53 //
54 // Implementation of eCoulombScattering of pointlike charge particle
55 // on Atomic Nucleus for interval of scattering anles in Lab system
56 // thetaMin - ThetaMax, nucleus recoil is neglected.
57 // The model based on analysis of J.M.Fernandez-Varea et al.
58 // NIM B73(1993)447 originated from G.Wentzel Z.Phys. 40(1927)590 with
59 // screening parameter from H.A.Bethe Phys. Rev. 89 (1953) 1256.
60 //
61 
62 // -------------------------------------------------------------------
63 //
64 
65 #ifndef G4eCoulombScatteringModel_h
66 #define G4eCoulombScatteringModel_h 1
67 
68 #include "G4VEmModel.hh"
69 #include "globals.hh"
70 #include "G4MaterialCutsCouple.hh"
72 
75 class G4IonTable;
76 class G4NistManager;
77 
79 {
80 
81 public:
82 
83  explicit G4eCoulombScatteringModel(G4bool combined = true);
84 
86 
87  virtual void Initialise(const G4ParticleDefinition*,
88  const G4DataVector&) override;
89 
90  virtual void InitialiseLocal(const G4ParticleDefinition*,
91  G4VEmModel* masterModel) override;
92 
94  const G4ParticleDefinition*,
95  G4double kinEnergy,
96  G4double Z,
97  G4double A,
98  G4double cut,
99  G4double emax) override;
100 
101  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
102  const G4MaterialCutsCouple*,
103  const G4DynamicParticle*,
104  G4double tmin,
105  G4double maxEnergy) override;
106 
107  virtual G4double MinPrimaryEnergy(const G4Material*,
108  const G4ParticleDefinition*,
109  G4double) final;
110 
111  // defines low energy limit of the model
112  inline void SetLowEnergyThreshold(G4double val);
113 
114  // user definition of low-energy threshold of recoil
115  inline void SetRecoilThreshold(G4double eth);
116 
117  // defines low energy limit on energy transfer to atomic electron
118  inline void SetFixedCut(G4double);
119 
120  // low energy limit on energy transfer to atomic electron
121  inline G4double GetFixedCut() const;
122 
123 protected:
124 
125  inline void DefineMaterial(const G4MaterialCutsCouple*);
126 
127  inline void SetupParticle(const G4ParticleDefinition*);
128 
129 private:
130 
131  // hide assignment operator
132  G4eCoulombScatteringModel & operator=
133  (const G4eCoulombScatteringModel &right) = delete;
135 
136  //protected:
137 
138  G4IonTable* theIonTable;
139  G4ParticleChangeForGamma* fParticleChange;
141  G4NistManager* fNistManager;
142 
143  const std::vector<G4double>* pCuts;
144 
145  const G4MaterialCutsCouple* currentCouple;
146  const G4Material* currentMaterial;
147  G4int currentMaterialIndex;
148 
149  G4double cosThetaMin;
150  G4double cosThetaMax;
151  G4double recoilThreshold;
152  G4double elecRatio;
153  G4double mass;
154 
155  G4double fixedCut;
156 
157  // projectile
158  const G4ParticleDefinition* particle;
159  const G4ParticleDefinition* theProton;
160 
161  G4bool isCombined;
162 };
163 
164 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
165 
166 inline
168 {
169  if(cup != currentCouple) {
170  currentCouple = cup;
171  currentMaterial = cup->GetMaterial();
172  currentMaterialIndex = currentCouple->GetIndex();
173  }
174 }
175 
176 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
177 
178 inline
180 {
181  // Initialise mass and charge
182  if(p != particle) {
183  particle = p;
184  mass = particle->GetPDGMass();
185  wokvi->SetupParticle(p);
186  }
187 }
188 
189 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
190 
192 {
193  recoilThreshold = eth;
194 }
195 
196 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
197 
199 {
200  fixedCut = val;
201 }
202 
203 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
204 
206 {
207  return fixedCut;
208 }
209 
210 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
211 
212 #endif
void SetupParticle(const G4ParticleDefinition *)
const char * p
Definition: xmltok.h:285
virtual void Initialise(const G4ParticleDefinition *, const G4DataVector &) override
int G4int
Definition: G4Types.hh:78
virtual void InitialiseLocal(const G4ParticleDefinition *, G4VEmModel *masterModel) override
double A(double temperature)
bool G4bool
Definition: G4Types.hh:79
virtual G4double MinPrimaryEnergy(const G4Material *, const G4ParticleDefinition *, G4double) final
void SetLowEnergyThreshold(G4double val)
void DefineMaterial(const G4MaterialCutsCouple *)
G4eCoulombScatteringModel(G4bool combined=true)
static const G4double emax
G4double GetPDGMass() const
virtual G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition *, G4double kinEnergy, G4double Z, G4double A, G4double cut, G4double emax) override
double G4double
Definition: G4Types.hh:76
void SetupParticle(const G4ParticleDefinition *)
virtual void SampleSecondaries(std::vector< G4DynamicParticle * > *, const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double tmin, G4double maxEnergy) override
const G4Material * GetMaterial() const