G4FissionLevelDensityParameter.cc

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//
// Hadronic Process: Nuclear De-excitations
// by V. Lara (Oct 1998)
//
// J.M.Quesada (July 2009):  fission level density parameter tuned for spallation data.
// V.Ivanchenko (July 2009): fixed logic and remove wrong usage of MeV
// J.M.Quesada (30.10.09):   retuning for IAEA spallation data

#include "G4FissionLevelDensityParameter.hh"
#include "G4NuclearLevelData.hh"

G4FissionLevelDensityParameter::G4FissionLevelDensityParameter()
{
  fNucData = G4NuclearLevelData::GetInstance();
}

G4FissionLevelDensityParameter::~G4FissionLevelDensityParameter()
{}

G4double G4FissionLevelDensityParameter::
LevelDensityParameter(G4int A, G4int Z, G4double U) const 
{
  G4double EvapLDP = fNucData->GetLevelDensity(Z, A, U); 

  if(Z >= 89)      { EvapLDP *= 1.05; }
  else if(Z <= 85) { EvapLDP *= 1.03; }
  else             { EvapLDP *= (1.03 + 0.005*(Z - 85)); }

  return EvapLDP;
}