G4LivermoreNuclearGammaConversionModel.hh

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// Authors: G.Depaola & F.Longo
 
#ifndef G4LivermoreNuclearGammaConversionModel_h
#define G4LivermoreNuclearGammaConversionModel_h 1
 
#include "G4VEmModel.hh"
#include "G4Electron.hh"
#include "G4Positron.hh"
#include "G4ParticleChangeForGamma.hh"
#include "G4PhysicsFreeVector.hh"
#include "G4ProductionCutsTable.hh"
 
class G4LivermoreNuclearGammaConversionModel : public G4VEmModel
{
 
public:
 
  explicit G4LivermoreNuclearGammaConversionModel(const G4ParticleDefinition* p = nullptr, 
                          const G4String& nam = "LivermoreNuclearConversion");
 
  virtual ~G4LivermoreNuclearGammaConversionModel();
 
  void Initialise(const G4ParticleDefinition*, 
                          const G4DataVector&) override;
 
  //MT
  void InitialiseLocal(const G4ParticleDefinition*, 
                         G4VEmModel* masterModel) override;
 
  void InitialiseForElement(const G4ParticleDefinition*, G4int Z) override;
  //END MT
 
  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;
 
  G4double MinPrimaryEnergy(const G4Material*,
                    const G4ParticleDefinition*,
                    G4double) override;
 
  G4LivermoreNuclearGammaConversionModel & operator=(const  G4LivermoreNuclearGammaConversionModel &right) 
  = delete;
  G4LivermoreNuclearGammaConversionModel(const  G4LivermoreNuclearGammaConversionModel&) = delete;
 
private:
  void ReadData(size_t Z, const char* path = 0);
  G4double ScreenFunction1(G4double screenVariable);
  G4double ScreenFunction2(G4double screenVariable);
 
  G4ParticleChangeForGamma* fParticleChange;
 
  //MT
  static const G4int maxZ = 100;
  static G4PhysicsFreeVector* data[maxZ+1]; // 101 because Z range is 1-100
  //END MT
 
  G4double lowEnergyLimit;  
  G4double smallEnergy;
  G4int verboseLevel;
  G4bool isInitialised;
  
};
 
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#endif