source: trunk/source/processes/electromagnetic/lowenergy/include/G4FinalStateIonisationRudd.hh @ 846

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// $Id: G4FinalStateIonisationRudd.hh,v 1.2 2007/11/09 16:30:56 pia Exp $
// GEANT4 tag $Name:  $
// 
// Contact Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
//
// History:
// -----------
// Date         Name              Modification
// 28 Apr 2007  M.G. Pia          Created in compliance with design described in TNS paper
//
// -------------------------------------------------------------------

// Class description:
// Geant4-DNA Cross total cross section for electron elastic scattering in water
// Reference: TNS Geant4-DNA paper
// Reference: TNS Geant4-DNA paper
// S. Chauvie et al., Geant4 physics processes for microdosimetry simulation:
// design foundation and implementation of the first set of models,
// IEEE Trans. Nucl. Sci., vol. 54, no. 6, Dec. 2007.
// Reference for implementation model: NIM. 155, pp. 145-156, 1978
// Further documentation available from http://www.ge.infn.it/geant4/dna

// -------------------------------------------------------------------


#ifndef G4FINALSTATEIONISATIONRUDD_HH
#define G4FINALSTATEIONISATIONRUDD_HH 1
 
#include "globals.hh"
#include "G4FinalStateProduct.hh"
#include "G4WaterIonisationStructure.hh"
#include "G4CrossSectionIonisationRuddPartial.hh"

class G4Track;
class G4Step;
class G4ParticleDefinition;

class G4FinalStateIonisationRudd
{
public:
   
  G4FinalStateIonisationRudd();
   
  ~G4FinalStateIonisationRudd();
   
  const G4FinalStateProduct& GenerateFinalState(const G4Track& track, const G4Step& step);
   
private:
   
  // Copy constructor and assignment operator to be added here
   
  G4String name;  
  G4double lowEnergyLimitDefault;
  G4double highEnergyLimitDefault;
  std::map<G4String,G4double,std::less<G4String> > lowEnergyLimit;
  std::map<G4String,G4double,std::less<G4String> > highEnergyLimit;

  G4FinalStateProduct product;

  G4WaterIonisationStructure waterStructure;

  G4CrossSectionIonisationRuddPartial cross;
   
  G4double RandomizeEjectedElectronEnergy(G4ParticleDefinition* particleDefinition, 
                                          G4double incomingParticleEnergy, 
                                          G4int shell);

  void RandomizeEjectedElectronDirection(G4ParticleDefinition* particleDefinition, 
                                         G4double incomingParticleEnergy, 
                                         G4double outgoingParticleEnergy, 
                                         G4double cosTheta, 
                                         G4double phi);
   
  G4double  DifferentialCrossSection(G4ParticleDefinition* particleDefinition, 
                                   G4double k, 
                                   G4double energyTransfer, 
                                   G4int shell);

  G4double CorrectionFactor(G4ParticleDefinition* particleDefinition, G4double k);

  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 R(G4double t, 
             G4double energyTransferred, 
             G4double slaterEffectiveChg, 
             G4double shellNumber) ;

  G4double slaterEffectiveCharge[3];
  G4double sCoefficient[3];
};


#endif