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// $Id: G4FinalStateKill.cc,v 1.1 2007/11/09 20:26:12 pia Exp $
// GEANT4 tag $Name: geant4-09-03 $
// 
// Contact Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
//
// Reference: TNS Geant4-DNA paper
// Reference for implementation model: NIM. 155, pp. 145-156, 1978

// History:
// -----------
// Date         Name              Modification
// 28 Apr 2007  M.G. Pia          Created in compliance with design described in TNS paper
//
// -------------------------------------------------------------------

// Class description:
// 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.
// Further documentation available from http://www.ge.infn.it/geant4/dna

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


#include "G4FinalStateKill.hh"
#include "G4Track.hh"
#include "G4Step.hh"
#include "G4DynamicParticle.hh"
#include "Randomize.hh"

#include "G4ParticleTypes.hh"
#include "G4ParticleDefinition.hh"
#include "G4Electron.hh"
#include "G4SystemOfUnits.hh"
#include "G4ParticleMomentum.hh"

G4FinalStateKill::G4FinalStateKill()
{
  name = "KillBelowThreshold";
  lowEnergyLimit = 0.;
  highEnergyLimit = 25 * eV;
}


G4FinalStateKill::~G4FinalStateKill()
{ 
  // empty
  // G4DynamicParticle objects produced are owned by client
}
 

const G4FinalStateProduct& G4FinalStateKill::GenerateFinalState(const G4Track& track, const G4Step& /* step */)
{
  // Clear previous secondaries, energy deposit and particle kill status
  product.Clear();

  //  const G4DynamicParticle* particle = track.GetDynamicParticle();
  // Kinetic energy of primary particle
  G4double k = track.GetDynamicParticle()->GetKineticEnergy();

 
  // Primary particle is killed
  if (k < highEnergyLimit)
    {
      product.KillPrimaryParticle();
    }
  
  return product;
}


