G4FissionLevelDensityParameter.cc

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// $Id$
//
// 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 "G4HadronicException.hh"
 
 
G4FissionLevelDensityParameter::G4FissionLevelDensityParameter()
{}
 
G4FissionLevelDensityParameter::~G4FissionLevelDensityParameter()
{}
 
 
G4double G4FissionLevelDensityParameter::
LevelDensityParameter(G4int A, G4int Z, G4double U) const 
{
  G4double EvapLDP = 
    theEvaporationLevelDensityParameter.LevelDensityParameter(A,Z,U);
 
  if(Z >= 89)      { EvapLDP *= 1.02; }
  else if(Z >= 85) { EvapLDP *= (1.02 + 0.004*(89 - Z)); }
  else             { EvapLDP *= 1.04; }
 
  /*
  if(Z >= 89)      { EvapLDP *= 1.01; }
  else if(Z >= 85) { EvapLDP *= (1.01 + 0.002*(89 - Z)); }
  else             { EvapLDP *= 1.02; }
  */
  return EvapLDP;
 
  /*
  if(Z >= 89)      EvapLDP *= 1.04;
  else if(Z >= 85) EvapLDP *= (1.04 + 0.01*(89 - Z));
  else             EvapLDP *= 1.09;
 
  //JMQ 310509 
  return 1.07*EvapLDP;
  */
}