G4IonCoulombScatteringModel.hh

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//
//      G4IonCoulombScatteringModel.hh
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
// File name:    G4IonCoulombScatteringModel 
//
// Author:      Cristina Consolandi
//
// Creation date: 05.10.2010 from G4eCoulombScatteringModel 
//                              & G4CoulombScatteringModel
//
//
// Class Description:
//      Single Scattering Model for
//      for protons, alpha and heavy Ions
//
// Reference:           
//      M.J. Boschini et al. "Nuclear and Non-Ionizing Energy-Loss 
//      for Coulomb ScatteredParticles from Low Energy up to Relativistic 
//      Regime in Space Radiation Environment"
//      Accepted for publication in the Proceedings of  the  ICATPP Conference
//      on Cosmic Rays for Particle and Astroparticle Physics, Villa  Olmo, 7-8
//      October,  2010, to be published by World Scientific (Singapore).
//
//      Available for downloading at:
//      http://arxiv.org/abs/1011.4822
//
// -------------------------------------------------------------------
//

#ifndef G4IonCoulombScatteringModel_h
#define G4IonCoulombScatteringModel_h 1

#include "G4VEmModel.hh"
#include "globals.hh"
#include "G4NistManager.hh"
#include "G4IonCoulombCrossSection.hh"

#include <vector>

class G4ParticleChangeForGamma;
class G4ParticleDefinition;
class G4IonTable;

class G4IonCoulombScatteringModel : public G4VEmModel
{
public:

  G4IonCoulombScatteringModel(const G4String& nam = "IonCoulombScattering");
 
  virtual ~G4IonCoulombScatteringModel();

  virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
 
  virtual G4double ComputeCrossSectionPerAtom(
                                const G4ParticleDefinition*,
                                G4double kinEnergy, 
                                G4double Z, 
                                G4double A, 
                                G4double cut,
                                G4double emax);

  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
                                 const G4MaterialCutsCouple*,
                                 const G4DynamicParticle*,
                                 G4double tmin,
                                 G4double maxEnergy);


        
  inline void  SetRecoilThreshold(G4double eth);

  inline void  SetHeavyIonCorr(G4int b);

  inline G4int GetHeavyIonCorr();

  //protected: 
         
private:

  inline void DefineMaterial(const G4MaterialCutsCouple*);
  
  inline void SetupParticle(const G4ParticleDefinition*);

  // hide assignment operator
  G4IonCoulombScatteringModel & operator=(const G4IonCoulombScatteringModel &right);
  G4IonCoulombScatteringModel(const  G4IonCoulombScatteringModel&);

  //protected:

  G4IonTable*               theIonTable;
  G4ParticleChangeForGamma* fParticleChange; 
  G4NistManager*            fNistManager;
  G4IonCoulombCrossSection* ioncross;     

  const std::vector<G4double>* pCuts;
  const G4MaterialCutsCouple* currentCouple; 
  const G4Material*           currentMaterial;
  const G4Element*            currentElement;
  G4int                       currentMaterialIndex;
  
  G4int                       heavycorr;

  G4double                  cosThetaMin;
  G4double                  recoilThreshold;
                                
  // projectile
  const G4ParticleDefinition* particle;         
  const G4ParticleDefinition* theProton;        
  G4double                  mass;               

};

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

inline void 
G4IonCoulombScatteringModel::DefineMaterial(const G4MaterialCutsCouple* cup)
{ 
  if(cup != currentCouple) {
    currentCouple = cup;
    currentMaterial = cup->GetMaterial();
    currentMaterialIndex = currentCouple->GetIndex();
  }
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

inline
void G4IonCoulombScatteringModel::SetupParticle(const G4ParticleDefinition* p)
{
  if(p != particle) {
    particle = p;
    mass = particle->GetPDGMass();
    ioncross->SetupParticle(p);
  }
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

inline void G4IonCoulombScatteringModel::SetRecoilThreshold(G4double eth)
{
  recoilThreshold = eth;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

inline void G4IonCoulombScatteringModel::SetHeavyIonCorr(G4int b) 
{
  heavycorr = b; 
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

inline G4int G4IonCoulombScatteringModel::GetHeavyIonCorr() 
{
  return heavycorr; 
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

#endif