G4PreCompoundNeutron.cc

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// $Id: G4PreCompoundNeutron.cc 90337 2015-05-26 08:34:27Z gcosmo $
//
// -------------------------------------------------------------------
//
// GEANT4 Class file
//
//
// File name:     G4PreCompoundNeutron
//
// Author:         V.Lara
//
// Modified:  
// 21.08.2008 J. M. Quesada add choice of options  
// 10.02.2009 J. M. Quesada set default opt3
// 20.08.2010 V.Ivanchenko added G4Pow and G4PreCompoundParameters pointers
//                         use int Z and A and cleanup
// 

#include "G4PreCompoundNeutron.hh"
#include "G4SystemOfUnits.hh"
#include "G4Neutron.hh"

G4PreCompoundNeutron::G4PreCompoundNeutron()
  : G4PreCompoundNucleon(G4Neutron::Neutron(), &theNeutronCoulombBarrier)
{}

G4PreCompoundNeutron::~G4PreCompoundNeutron()
{}

G4double G4PreCompoundNeutron::GetRj(G4int nParticles, G4int nCharged) const
{
  G4double rj = 0.0;
  if(nParticles > 0) { 
    rj = static_cast<G4double>(nParticles - nCharged)/
      static_cast<G4double>(nParticles);
  }
  return rj;
}

G4double G4PreCompoundNeutron::GetAlpha() const
{
  return 0.76+2.2/theResA13;
}

G4double G4PreCompoundNeutron::GetBeta() const
{
  return (2.12/(theResA13*theResA13)-0.05)*MeV/GetAlpha();
}