G4LivermorePolarizedComptonModel.hh

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// Authors: G.Depaola & F.Longo
//
 
#ifndef G4LivermorePolarizedComptonModel_h
#define G4LivermorePolarizedComptonModel_h 1
 
#include "G4VEmModel.hh"
#include "G4PhysicsFreeVector.hh"
 
class G4ParticleChangeForGamma;
class G4VAtomDeexcitation;
class G4ShellData;
class G4DopplerProfile;
 
#include "G4VEMDataSet.hh"
#include "G4CompositeEMDataSet.hh"
 
class G4LivermorePolarizedComptonModel : public G4VEmModel
{
public:
  explicit G4LivermorePolarizedComptonModel(const G4ParticleDefinition* p = nullptr, 
                           const G4String& nam = "LivermorePolarizedCompton");
 
  virtual ~G4LivermorePolarizedComptonModel();
 
  void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
  void InitialiseLocal(const G4ParticleDefinition*, G4VEmModel* masterModel) override;
  void InitialiseForElement(const G4ParticleDefinition*, G4int Z) 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;
 
  G4LivermorePolarizedComptonModel & operator=(const  G4LivermorePolarizedComptonModel &right) = delete;
  G4LivermorePolarizedComptonModel(const  G4LivermorePolarizedComptonModel&) = delete;
 
private:
   // specific methods for polarization   
  G4ThreeVector GetRandomPolarization(G4ThreeVector& direction0); // Random Polarization
  G4ThreeVector GetPerpendicularPolarization(const G4ThreeVector& direction0, const G4ThreeVector& polarization0) const;
  G4ThreeVector SetPerpendicularVector(G4ThreeVector& a); // temporary
  G4ThreeVector SetNewPolarization(G4double epsilon, G4double sinSqrTheta, 
                   G4double phi, G4double cosTheta);
  G4double SetPhi(G4double, G4double);
  void SystemOfRefChange(G4ThreeVector& direction0, G4ThreeVector& direction1, 
             G4ThreeVector& polarization0, G4ThreeVector& polarization1);
  void ReadData(size_t Z, const char* path = 0);
 
 
  G4ParticleChangeForGamma* fParticleChange;
  G4VAtomDeexcitation* fAtomDeexcitation;
 
  // Doppler Broadening
  static G4ShellData* shellData;
  static G4DopplerProfile* profileData;
 
  // Cross Section Handling 
  static const G4int maxZ = 99;
  static G4PhysicsFreeVector* data[100];
 
  // Scattering function 
  static G4CompositeEMDataSet* scatterFunctionData;
 
  G4int verboseLevel;
  G4bool isInitialised;
  G4int fEntanglementModelID;
};
 
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#endif