include/Geant4/G4PenelopeRayleighModel.hh

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0025 //
0026 //
0027 // Author: Luciano Pandola
0028 //
0029 // History:
0030 // -----------
0031 // 03 Dec 2009   L. Pandola   1st implementation.
0032 // 25 May 2011   L. Pandola   Renamed (make v2008 as default Penelope)
0033 // 27 Sep 2013   L. Pandola  Migration to MT paradigm
0034 // 04 Mar 2021   L. Pandola   Replace maps with arrays
0035 //
0036 // -------------------------------------------------------------------
0037 //
0038 // Class description:
0039 // Low Energy Electromagnetic Physics, Rayleigh Scattering
0040 // with the model from Penelope, version 2008
0041 // -------------------------------------------------------------------
0042
0043 #ifndef G4PENELOPERAYLEIGHMODEL_HH
0044 #define G4PENELOPERAYLEIGHMODEL_HH 1
0045
0046 #include "globals.hh"
0047 #include "G4VEmModel.hh"
0048 #include "G4DataVector.hh"
0049 #include "G4ParticleChangeForGamma.hh"
0050
0051 class G4ParticleDefinition;
0052 class G4DynamicParticle;
0053 class G4MaterialCutsCouple;
0054 class G4Material;
0055 class G4PhysicsFreeVector;
0056 class G4PenelopeSamplingData;
0057
0058 class G4PenelopeRayleighModel : public G4VEmModel
0059 {
0060
0061 public:
0062   explicit G4PenelopeRayleighModel(const G4ParticleDefinition* p=nullptr,
0063                    const G4String& processName ="PenRayleigh");
0064
0065   virtual ~G4PenelopeRayleighModel();
0066
0067   void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
0068   void InitialiseLocal(const G4ParticleDefinition*,
0069                G4VEmModel *masterModel) override;
0070
0071   G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*,
0072                       G4double kinEnergy,
0073                       G4double Z,
0074                       G4double A=0,
0075                       G4double cut=0,
0076                       G4double emax=DBL_MAX) override;
0077
0078   void SampleSecondaries(std::vector<G4DynamicParticle*>*,
0079              const G4MaterialCutsCouple*,
0080              const G4DynamicParticle*,
0081              G4double tmin,
0082              G4double maxEnergy) override;
0083
0084   void SetVerbosityLevel(G4int lev){fVerboseLevel = lev;};
0085   G4int GetVerbosityLevel(){return fVerboseLevel;};
0086
0087   //Testing purposes
0088   void DumpFormFactorTable(const G4Material*);
0089
0090   G4PenelopeRayleighModel& operator=(const G4PenelopeRayleighModel &right) = delete;
0091   G4PenelopeRayleighModel(const G4PenelopeRayleighModel&) = delete;
0092
0093 protected:
0094   G4ParticleChangeForGamma* fParticleChange;
0095   const G4ParticleDefinition* fParticle;
0096
0097 private:
0098   void SetParticle(const G4ParticleDefinition*);
0099   //Helper methods
0100   void ReadDataFile(G4int);
0101   void ClearTables();
0102   void BuildFormFactorTable(const G4Material*);
0103   void GetPMaxTable(const G4Material*);
0104
0105   G4double GetFSquared(const G4Material*,const G4double);
0106   void InitializeSamplingAlgorithm(const G4Material*);
0107
0108   G4DataVector fLogQSquareGrid; //log(Q^2) grid for interpolation
0109   std::map<const G4Material*,G4PhysicsFreeVector*> *fLogFormFactorTable; //log(Q^2) vs. log(F^2)
0110
0111   G4DataVector fLogEnergyGridPMax; //energy grid for PMac (and originally for the x-section)
0112   std::map<const G4Material*,G4PhysicsFreeVector*> *fPMaxTable; //E vs. Pmax
0113   std::map<const G4Material*,G4PenelopeSamplingData*> *fSamplingTable;
0114
0115   //Internal tables and manager methods
0116   static const G4int fMaxZ =99;
0117   static G4PhysicsFreeVector* fLogAtomicCrossSection[fMaxZ+1];
0118   static G4PhysicsFreeVector* fAtomicFormFactor[fMaxZ+1];
0119
0120   //Intrinsic energy limits of the model: cannot be extended by
0121   //the parent process
0122   G4double fIntrinsicLowEnergyLimit;
0123   G4double fIntrinsicHighEnergyLimit;
0124   G4int fVerboseLevel;
0125   G4bool fIsInitialised;
0126   //Used only for G4EmCalculator and Unit Tests
0127   G4bool fLocalTable;
0128 };
0129
0130 #endif
0131