G4PenelopeRayleighModel.hh

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//
// Author: Luciano Pandola
//
// History:
// -----------
// 03 Dec 2009   L. Pandola   1st implementation. 
// 25 May 2011   L. Pandola   Renamed (make v2008 as default Penelope)
// 27 Sep 2013   L. Pandola  Migration to MT paradigm
// 04 Mar 2021   L. Pandola   Replace maps with arrays
//
// -------------------------------------------------------------------
//
// Class description:
// Low Energy Electromagnetic Physics, Rayleigh Scattering
// with the model from Penelope, version 2008
// -------------------------------------------------------------------
 
#ifndef G4PENELOPERAYLEIGHMODEL_HH
#define G4PENELOPERAYLEIGHMODEL_HH 1
 
#include "globals.hh"
#include "G4VEmModel.hh"
#include "G4DataVector.hh"
#include "G4ParticleChangeForGamma.hh"
 
class G4ParticleDefinition;
class G4DynamicParticle;
class G4MaterialCutsCouple;
class G4Material;
class G4PhysicsFreeVector;
class G4PenelopeSamplingData;
 
class G4PenelopeRayleighModel : public G4VEmModel 
{
 
public:  
  explicit G4PenelopeRayleighModel(const G4ParticleDefinition* p=nullptr,
                   const G4String& processName ="PenRayleigh");
  
  virtual ~G4PenelopeRayleighModel();
  
  void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
  void InitialiseLocal(const G4ParticleDefinition*,
               G4VEmModel *masterModel) override;
 
  G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*,
                      G4double kinEnergy,
                      G4double Z,
                      G4double A=0,
                      G4double cut=0,
                      G4double emax=DBL_MAX) override;
 
  void SampleSecondaries(std::vector<G4DynamicParticle*>*,
             const G4MaterialCutsCouple*,
             const G4DynamicParticle*,
             G4double tmin,
             G4double maxEnergy) override;
    
  void SetVerbosityLevel(G4int lev){fVerboseLevel = lev;};
  G4int GetVerbosityLevel(){return fVerboseLevel;};
  
  //Testing purposes
  void DumpFormFactorTable(const G4Material*);
 
  G4PenelopeRayleighModel& operator=(const G4PenelopeRayleighModel &right) = delete;
  G4PenelopeRayleighModel(const G4PenelopeRayleighModel&) = delete;
 
protected:
  G4ParticleChangeForGamma* fParticleChange;
  const G4ParticleDefinition* fParticle;
 
private:
  void SetParticle(const G4ParticleDefinition*);
  //Helper methods
  void ReadDataFile(G4int); 
  void ClearTables();
  void BuildFormFactorTable(const G4Material*);
  void GetPMaxTable(const G4Material*);
 
  G4double GetFSquared(const G4Material*,const G4double);
  void InitializeSamplingAlgorithm(const G4Material*);
 
  G4DataVector fLogQSquareGrid; //log(Q^2) grid for interpolation
  std::map<const G4Material*,G4PhysicsFreeVector*> *fLogFormFactorTable; //log(Q^2) vs. log(F^2)
 
  G4DataVector fLogEnergyGridPMax; //energy grid for PMac (and originally for the x-section)
  std::map<const G4Material*,G4PhysicsFreeVector*> *fPMaxTable; //E vs. Pmax
  std::map<const G4Material*,G4PenelopeSamplingData*> *fSamplingTable;
 
  //Internal tables and manager methods
  static const G4int fMaxZ =99;
  static G4PhysicsFreeVector* fLogAtomicCrossSection[fMaxZ+1];
  static G4PhysicsFreeVector* fAtomicFormFactor[fMaxZ+1];
 
  //Intrinsic energy limits of the model: cannot be extended by 
  //the parent process
  G4double fIntrinsicLowEnergyLimit;
  G4double fIntrinsicHighEnergyLimit;  
  G4int fVerboseLevel;
  G4bool fIsInitialised; 
  //Used only for G4EmCalculator and Unit Tests
  G4bool fLocalTable;
};
 
#endif