G4NeutronEvaporationProbability.cc

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// $Id: G4NeutronEvaporationProbability.cc 89518 2015-04-15 14:43:30Z gcosmo $
//
// J.M. Quesada (August2008). Based on:
//
// Hadronic Process: Nuclear De-excitations
// by V. Lara (Oct 1998)
//
// Modified:
// 03-09-2008 J.M. Quesada for external choice of inverse cross section option
// 17-11-2010 V.Ivanchenko integer Z and A

#include "G4NeutronEvaporationProbability.hh"
#include "G4SystemOfUnits.hh"

G4NeutronEvaporationProbability::G4NeutronEvaporationProbability() :
    G4EvaporationProbability(1,0,2.0,&theCoulombBarrier)
{}

G4NeutronEvaporationProbability::~G4NeutronEvaporationProbability()
{}

G4double G4NeutronEvaporationProbability::CalcAlphaParam(const G4Fragment& fragment)
{ 
  return 0.76+2.2/fG4pow->Z13(fragment.GetA_asInt()-GetA());
}
        
G4double G4NeutronEvaporationProbability::CalcBetaParam(const G4Fragment& fragment) 
{ 
  return (2.12/fG4pow->Z23(fragment.GetA_asInt()-GetA()) - 0.05)*MeV/
    CalcAlphaParam(fragment); 
}