G4DNARuddIonisationExtendedModel.hh

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//
// Created by Z. Francis, S. Incerti 2010 
//
// Modified for inverse rudd function sampling 26.10.2010
// Rewitten by V.Ivanchenko 21.05.2023
//
 
#ifndef G4DNARuddIonisationExtendedModel_h
#define G4DNARuddIonisationExtendedModel_h 1
 
#include "G4VEmModel.hh"
#include "G4ParticleChangeForGamma.hh"
#include "G4ProductionCutsTable.hh"
 
#include "G4EmCorrections.hh"
#include "G4DNAGenericIonsManager.hh"
#include "G4DNACrossSectionDataSet.hh"
#include "G4Electron.hh"
#include "G4Proton.hh"
#include "G4LogLogInterpolation.hh"
 
#include "G4DNAWaterIonisationStructure.hh"
#include "G4VAtomDeexcitation.hh"
#include "G4NistManager.hh"
#include <vector>
 
class G4DNARuddIonisationExtendedModel : public G4VEmModel
{
public:
 
  explicit G4DNARuddIonisationExtendedModel(const G4ParticleDefinition* p = nullptr,
                   const G4String& nam = "DNARuddIonisationExtendedModel");
 
  ~G4DNARuddIonisationExtendedModel() override;
 
  void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
 
  G4double CrossSectionPerVolume(const G4Material* material,
                                 const G4ParticleDefinition* p,
                 G4double ekin,
                 G4double emin,
                 G4double emax) override;
 
  void SampleSecondaries(std::vector<G4DynamicParticle*>*,
             const G4MaterialCutsCouple*,
             const G4DynamicParticle*,
             G4double tmin,
             G4double maxEnergy) override;
 
  void SelectStationary(G4bool val) { statCode = val; }; 
 
  // method for unit tests
  G4double ComputeProbabilityFunction(const G4ParticleDefinition*, G4double kine,
                                      G4double deltae, G4int shell);
 
  G4DNARuddIonisationExtendedModel & operator=
  (const  G4DNARuddIonisationExtendedModel &right) = delete;
  G4DNARuddIonisationExtendedModel(const G4DNARuddIonisationExtendedModel&) = delete;
 
private:
 
  void SetParticle(const G4ParticleDefinition*);
 
  G4int SelectShell(G4double energy);
 
  G4double SampleElectronEnergy(G4double kine, G4double bindingEnergy, G4int shell);
 
  G4double ProbabilityFunction(G4double kine, G4double deltae,
                               G4double bindingEnergy, G4int shell);
 
  G4double S_1s(G4double t,
        G4double energyTransferred,
        G4double slaterEffectiveChg,
        G4double shellNumber);
 
  G4double S_2s(G4double t,
        G4double energyTransferred,
        G4double slaterEffectiveChg,
        G4double shellNumber);
 
 
  G4double S_2p(G4double t,
        G4double energyTransferred,
        G4double slaterEffectiveChg,
        G4double shellNumber);
 
  G4double Rh(G4double t, 
          G4double energyTransferred,
          G4double slaterEffectiveChg,
          G4double shellNumber);
 
  G4double CorrectionFactor(G4double kine, G4int shell);
 
protected:
 
  G4ParticleChangeForGamma* fParticleChangeForGamma{nullptr};
 
private:
 
  // idx = 0 - hydrogen
  // idx = 1 - proton
  // idx = 2%26 - ions idx=Z
  // idx = -1 - alpha+
  // idx = -1 - helium
  static const G4int RUDDZMAX = 27;
  static G4DNACrossSectionDataSet* xsdata[RUDDZMAX];
  static G4DNACrossSectionDataSet* xsalphaplus;
  static G4DNACrossSectionDataSet* xshelium;
 
  // Water density table
  static const std::vector<G4double>* fpWaterDensity;
 
  G4DNACrossSectionDataSet* xscurrent{nullptr};
  const G4ParticleDefinition* fParticle{nullptr};
  G4EmCorrections* fEmCorrections;
  G4Pow* fGpow;
 
  //deexcitation manager to produce fluo photons and e-
  G4VAtomDeexcitation* fAtomDeexcitation{nullptr};
 
  // tracking cut and low-energy limit of proton x-section table
  G4double fLowestEnergy;
  // scaled low-energy limit of ion x-section table
  G4double fLimitEnergy;
 
  G4double fMass{0.0};
  G4double fAmass{0.0};
  G4double fMassRate{1.0};
  G4double fElow{0.0};
 
  G4double slaterEffectiveCharge[3] = {0.0};
  G4double sCoefficient[3] = {0.0};
  G4double fTemp[5] = {0.0};
 
  G4int idx{-1};
  G4int verbose{0};
 
  G4bool isIon{false};
  G4bool isFirst{false};
  G4bool isHelium{false};
  G4bool statCode{false};
  G4bool useDNAWaterStructure{true};
 
  // energy levels of water molecule  
  G4DNAWaterIonisationStructure waterStructure;
};
 
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#endif