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// $Id: G4DNAChargeIncreaseInWater.icc,v 1.4 2006/06/29 19:33:46 gunter Exp $
// GEANT4 tag $Name: geant4-08-02 $
//

#ifdef    G4DNACHARGEINCREASEINWATER_HH
 #include "G4Electron.hh"

 template<typename TotalCrossSectionPolicy, typename FinalStatesPolicy>
 G4VParticleChange* G4DNAChargeIncreaseInWater<TotalCrossSectionPolicy, FinalStatesPolicy>::PostStepDoIt(const G4Track& aTrack, const G4Step& aStep)
 {
  this->aParticleChange.Initialize(aTrack);
  this->aParticleChange.ProposeLocalEnergyDeposit(0.);
  this->aParticleChange.ProposeTrackStatus(fStopAndKill);
  
  G4double inK(aTrack.GetDynamicParticle()->GetKineticEnergy());
  
  const G4int z(10); // H2O number of electrons
  G4int finalStateIndex(TotalCrossSectionPolicy::RandomizePartialCrossSection(inK, z));

  G4int n(FinalStatesPolicy::NumberOfFinalStates(finalStateIndex));
  G4double outK(inK-FinalStatesPolicy::IncomingParticleBindingEnergyConstant(finalStateIndex));
  G4double electronK(inK*electron_mass_c2/proton_mass_c2);
  
  if (outK<0)
  {
   G4String message;
   message="G4DNAChargeIncreaseInWater<>::PostStepDoIt - Final kinetic energy is below 0! Process ";
   message+=this->GetProcessName();
   
   G4Exception(message);
  }
  
  this->aParticleChange.SetNumberOfSecondaries(n+1);
  this->aParticleChange.AddSecondary(new G4DynamicParticle(FinalStatesPolicy::OutgoingParticleDefinition(finalStateIndex), aTrack.GetDynamicParticle()->GetMomentumDirection(), outK));

  while (n>0)
  {
   n--;
   
   this->aParticleChange.AddSecondary(new G4DynamicParticle(FinalStatesPolicy::OutgoingParticleDefinition(finalStateIndex), aTrack.GetDynamicParticle()->GetMomentumDirection(), electronK));
  }
 
  return G4VDNAProcessInWater<TotalCrossSectionPolicy, FinalStatesPolicy>::PostStepDoIt(aTrack, aStep);
 }
#endif /* G4DNACHARGEINCREASEINWATER_HH */