include/Geant4/G4JAEAElasticScatteringModel.hh

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
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0025 //
0026 /*
0027 Author:
0028 M. Omer and R. Hajima  on   17 October 2016
0029 contact:
0030 omer.mohamed@jaea.go.jp and hajima.ryoichi@qst.go.jp
0031 Publication Information:
0032 1- M. Omer, R. Hajima, Including Delbrück scattering in Geant4,
0033 Nucl. Instrum. Methods Phys. Res. Sect. B, vol. 405, 2017, pp. 43-49.,
0034 https://doi.org/10.1016/j.nimb.2017.05.028
0035 2- M. Omer, R. Hajima, Geant4 physics process for elastic scattering of gamma-rays,
0036 JAEA Technical Report 2018-007, 2018.
0037 https://doi.org/10.11484/jaea-data-code-2018-007
0038 */
0039 //         on base of G4LivermoreRayleighModel
0040 //
0041
0042 #ifndef G4JAEAElasticScatteringModel_h
0043 #define G4JAEAElasticScatteringModel_h 1
0044
0045 #include "G4VEmModel.hh"
0046 #include "G4ParticleChangeForGamma.hh"
0047 #include "G4PhysicsFreeVector.hh"
0048 #include "G4ProductionCutsTable.hh"
0049 #include "G4DataVector.hh"
0050
0051 class G4JAEAElasticScatteringModel : public G4VEmModel
0052 {
0053 public:
0054   explicit G4JAEAElasticScatteringModel();
0055   virtual ~G4JAEAElasticScatteringModel();
0056
0057   void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
0058
0059   void InitialiseLocal(const G4ParticleDefinition*,
0060                G4VEmModel* masterModel) override;
0061
0062   void InitialiseForElement(const G4ParticleDefinition*, G4int Z) override;
0063
0064   G4double ComputeCrossSectionPerAtom(
0065                       const G4ParticleDefinition*,
0066                                       G4double kinEnergy,
0067                                       G4double Z,
0068                                       G4double A=0,
0069                                       G4double cut=0,
0070                                       G4double emax=DBL_MAX) override;
0071
0072   void SampleSecondaries(std::vector<G4DynamicParticle*>*,
0073              const G4MaterialCutsCouple*,
0074              const G4DynamicParticle*,
0075              G4double tmin,
0076              G4double maxEnergy) override;
0077
0078   void SetLowEnergyThreshold(G4double val){lowEnergyLimit = val;};
0079   void SetDebugVerbosity(G4int val){verboseLevel = val;};
0080
0081   G4JAEAElasticScatteringModel & operator=(const G4JAEAElasticScatteringModel &right) = delete;
0082   G4JAEAElasticScatteringModel(const G4JAEAElasticScatteringModel&) = delete;
0083
0084 private:
0085   void ReadData(std::size_t Z, const char* path = 0);
0086
0087   static const G4int maxZ = 99;
0088   static G4PhysicsFreeVector* dataCS[maxZ+1];
0089   static G4DataVector* ES_Data[maxZ+1];
0090   G4ParticleChangeForGamma* fParticleChange;
0091   G4double distribution[181];
0092   G4double pdf[181];
0093   G4double cdf[181];
0094
0095   G4double lowEnergyLimit;
0096
0097   G4int verboseLevel;
0098   G4bool isInitialised;
0099
0100 };
0101
0102
0103 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0104
0105 #endif