Geant4  10.03.p03
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
G4hCoulombScatteringModel.hh
Go to the documentation of this file.
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 // $Id: G4hCoulombScatteringModel.hh 96934 2016-05-18 09:10:41Z gcosmo $
27 //
28 // -------------------------------------------------------------------
29 //
30 // GEANT4 Class header file
31 //
32 //
33 // File name: G4hCoulombScatteringModel
34 //
35 // Author: Vladimir Ivanchenko
36 //
37 // Creation date: 08.06.2012 from G4eCoulombScatteringModel
38 //
39 // Modifications:
40 //
41 // Class Description:
42 //
43 // Implementation of Coulomb Scattering of pointlike charge particle
44 // on Atomic Nucleus for interval of scattering anles in Lab system
45 // thetaMin - ThetaMax, nucleus recoil is neglected.
46 // The model based on analysis of J.M.Fernandez-Varea et al.
47 // NIM B73(1993)447 originated from G.Wentzel Z.Phys. 40(1927)590 with
48 // screening parameter from H.A.Bethe Phys. Rev. 89 (1953) 1256.
49 //
50 
51 // -------------------------------------------------------------------
52 //
53 
54 #ifndef G4hCoulombScatteringModel_h
55 #define G4hCoulombScatteringModel_h 1
56 
57 #include "G4VEmModel.hh"
58 #include "globals.hh"
59 #include "G4MaterialCutsCouple.hh"
61 
64 class G4IonTable;
65 class G4NistManager;
66 
68 {
69 
70 public:
71 
72  explicit G4hCoulombScatteringModel(G4bool combined = true);
73 
75 
76  virtual void Initialise(const G4ParticleDefinition*,
77  const G4DataVector&) override;
78 
79  virtual void InitialiseLocal(const G4ParticleDefinition*,
80  G4VEmModel* masterModel) override;
81 
83  const G4ParticleDefinition*,
84  G4double kinEnergy,
85  G4double Z,
86  G4double A,
87  G4double cut,
88  G4double emax) override;
89 
90  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
91  const G4MaterialCutsCouple*,
92  const G4DynamicParticle*,
93  G4double tmin,
94  G4double maxEnergy) override;
95 
96  virtual G4double MinPrimaryEnergy(const G4Material*,
97  const G4ParticleDefinition*,
98  G4double) final;
99 
100  // defines low energy limit of the model
101  inline void SetLowEnergyThreshold(G4double val);
102 
103  // user definition of low-energy threshold of recoil
104  inline void SetRecoilThreshold(G4double eth);
105 
106  // defines low energy limit on energy transfer to atomic electron
107  inline void SetFixedCut(G4double);
108 
109  // low energy limit on energy transfer to atomic electron
110  inline G4double GetFixedCut() const;
111 
112 protected:
113 
114  inline void DefineMaterial(const G4MaterialCutsCouple*);
115 
116  inline void SetupParticle(const G4ParticleDefinition*);
117 
118 private:
119 
120  // hide assignment operator
121  G4hCoulombScatteringModel & operator=
122  (const G4hCoulombScatteringModel &right) = delete;
124 
125  G4IonTable* theIonTable;
126  G4ParticleChangeForGamma* fParticleChange;
127  G4WentzelVIRelXSection* wokvi;
128  G4NistManager* fNistManager;
129 
130  const std::vector<G4double>* pCuts;
131 
132  const G4MaterialCutsCouple* currentCouple;
133  const G4Material* currentMaterial;
134  G4int currentMaterialIndex;
135 
136  G4double cosThetaMin;
137  G4double cosThetaMax;
138  G4double recoilThreshold;
139  G4double elecRatio;
140  G4double mass;
141 
142  G4double fixedCut;
143 
144  // projectile
145  const G4ParticleDefinition* particle;
146  const G4ParticleDefinition* theProton;
147 
148  G4bool isCombined;
149 };
150 
151 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
152 
153 inline
155 {
156  if(cup != currentCouple) {
157  currentCouple = cup;
158  currentMaterial = cup->GetMaterial();
159  currentMaterialIndex = currentCouple->GetIndex();
160  }
161 }
162 
163 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
164 
165 inline
167 {
168  // Initialise mass and charge
169  if(p != particle) {
170  particle = p;
171  mass = particle->GetPDGMass();
172  wokvi->SetupParticle(p);
173  }
174 }
175 
176 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
177 
179 {
180  recoilThreshold = eth;
181 }
182 
183 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
184 
186 {
187  fixedCut = val;
188 }
189 
190 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
191 
193 {
194  return fixedCut;
195 }
196 
197 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
198 
199 #endif
const char * p
Definition: xmltok.h:285
void DefineMaterial(const G4MaterialCutsCouple *)
void SetupParticle(const G4ParticleDefinition *)
int G4int
Definition: G4Types.hh:78
virtual G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition *, G4double kinEnergy, G4double Z, G4double A, G4double cut, G4double emax) override
void SetupParticle(const G4ParticleDefinition *)
double A(double temperature)
bool G4bool
Definition: G4Types.hh:79
virtual void InitialiseLocal(const G4ParticleDefinition *, G4VEmModel *masterModel) override
static const G4double emax
G4hCoulombScatteringModel(G4bool combined=true)
G4double GetPDGMass() const
virtual G4double MinPrimaryEnergy(const G4Material *, const G4ParticleDefinition *, G4double) final
double G4double
Definition: G4Types.hh:76
virtual void Initialise(const G4ParticleDefinition *, const G4DataVector &) override
void SetLowEnergyThreshold(G4double val)
const G4Material * GetMaterial() const
virtual void SampleSecondaries(std::vector< G4DynamicParticle * > *, const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double tmin, G4double maxEnergy) override