source: trunk/source/processes/electromagnetic/lowenergy/src/G4CrossSectionKill.cc @ 1347

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// $Id: G4CrossSectionKill.cc,v 1.1 2007/11/09 20:26:12 pia Exp $
// GEANT4 tag $Name: geant4-09-04-ref-00 $
// 
// 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:
// Geant4-DNA Cross total cross section for electron elastic scattering in water
// 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 "G4CrossSectionKill.hh"
#include "G4Track.hh"
#include "G4DynamicParticle.hh"

G4CrossSectionKill::G4CrossSectionKill()
{

  name = "CrossSectionKill";
  lowEnergyLimit = 0. * eV;
  highEnergyLimit = 25 * eV;
}


G4CrossSectionKill::~G4CrossSectionKill()
{ }
 

G4double G4CrossSectionKill::CrossSection(const G4Track& track)
{
  const G4DynamicParticle* particle = track.GetDynamicParticle();
  G4double k = particle->GetKineticEnergy();

  // Cross section = infinite below a given threshold
  // ---- MGP ---- Better handling of the threshold to be set in a following design iteration 

  G4double sigma = 0.;

  if (k < highEnergyLimit) sigma = DBL_MAX;

  return sigma;
}