G4PreCompoundNucleon Class Reference

#include <G4PreCompoundNucleon.hh>

Inheritance diagram for G4PreCompoundNucleon:

Public Member Functions
	G4PreCompoundNucleon (const G4ParticleDefinition *, G4VCoulombBarrier *aCoulombBarrier)
virtual	~G4PreCompoundNucleon ()
Public Member Functions inherited from G4PreCompoundFragment
	G4PreCompoundFragment (const G4ParticleDefinition *, G4VCoulombBarrier *aCoulombBarrier)
virtual	~G4PreCompoundFragment ()
G4double	CalcEmissionProbability (const G4Fragment &aFragment)
G4double	GetKineticEnergy (const G4Fragment &aFragment)
Public Member Functions inherited from G4VPreCompoundFragment
	G4VPreCompoundFragment (const G4ParticleDefinition *, G4VCoulombBarrier *aCoulombBarrier)
virtual	~G4VPreCompoundFragment ()
void	Initialize (const G4Fragment &aFragment)
virtual G4double	CalcEmissionProbability (const G4Fragment &aFragment)=0
virtual G4double	GetKineticEnergy (const G4Fragment &aFragment)=0
G4ReactionProduct *	GetReactionProduct () const
G4int	GetA () const
G4int	GetZ () const
G4int	GetRestA () const
G4int	GetRestZ () const
G4double	ResidualA13 () const
G4double	GetCoulombBarrier () const
G4double	GetBindingEnergy () const
G4double	GetMaximalKineticEnergy () const
G4double	GetEnergyThreshold () const
G4double	GetEmissionProbability () const
G4double	GetNuclearMass () const
G4double	GetRestNuclearMass () const
G4double	GetReducedMass () const
const G4LorentzVector &	GetMomentum () const
void	SetMomentum (const G4LorentzVector &value)
const G4String	GetName () const
void	SetOPTxs (G4int)
void	UseSICB (G4bool)

Protected Member Functions
virtual G4double	ProbabilityDistributionFunction (G4double eKin, const G4Fragment &aFragment)
virtual G4double	CrossSection (G4double ekin)=0
virtual G4double	GetRj (G4int NumberParticles, G4int NumberCharged)=0
virtual G4double	GetAlpha ()=0
virtual G4double	GetBeta ()=0
G4double	GetOpt0 (G4double ekin)
virtual G4double	ProbabilityDistributionFunction (G4double K, const G4Fragment &aFragment)=0
Protected Member Functions inherited from G4VPreCompoundFragment
G4bool	IsItPossible (const G4Fragment &aFragment) const

Additional Inherited Members
Protected Attributes inherited from G4VPreCompoundFragment
G4PreCompoundParameters *	theParameters
G4Pow *	g4pow
G4double	theEmissionProbability
G4double	theCoulombBarrier
G4int	OPTxs
G4bool	useSICB

Detailed Description

Definition at line 41 of file G4PreCompoundNucleon.hh.

Constructor & Destructor Documentation

G4PreCompoundNucleon()

G4PreCompoundNucleon::G4PreCompoundNucleon	(	const G4ParticleDefinition *	part,
		G4VCoulombBarrier *	aCoulombBarrier
	)

Definition at line 47 of file G4PreCompoundNucleon.cc.

  : G4PreCompoundFragment(part,aCoulombBarrier)
{
  fact = 2*CLHEP::millibarn/(CLHEP::pi2*CLHEP::hbarc*CLHEP::hbarc*CLHEP::hbarc);
}

~G4PreCompoundNucleon()

G4PreCompoundNucleon::~G4PreCompoundNucleon ( )

virtual

Definition at line 55 of file G4PreCompoundNucleon.cc.

{}

Member Function Documentation

CrossSection()

virtual G4double G4PreCompoundNucleon::CrossSection ( G4double  ekin )

protectedpure virtual

Implemented in G4PreCompoundNeutron, and G4PreCompoundProton.

Referenced by ProbabilityDistributionFunction().

GetAlpha()

virtual G4double G4PreCompoundNucleon::GetAlpha ( )

protectedpure virtual

Implemented in G4PreCompoundNeutron, and G4PreCompoundProton.

Referenced by GetOpt0().

GetBeta()

virtual G4double G4PreCompoundNucleon::GetBeta ( )

protectedpure virtual

Implemented in G4PreCompoundNeutron, and G4PreCompoundProton.

Referenced by GetOpt0().

GetOpt0()

G4double G4PreCompoundNucleon::GetOpt0 ( G4double  ekin )

inlineprotected

Definition at line 82 of file G4PreCompoundNucleon.hh.

{
  G4double r0 = theParameters->Getr0()*ResidualA13();
  // cross section is now given in mb (r0 is in mm) for the sake of consistency
  //with the rest of the options
  return 1.e+25*CLHEP::pi*r0*r0*ResidualA13()*GetAlpha()*(1.+GetBeta()/K);
}

Referenced by G4PreCompoundNeutron::CrossSection(), and G4PreCompoundProton::CrossSection().

GetRj()

virtual G4double G4PreCompoundNucleon::GetRj ( G4int  NumberParticles, G4int  NumberCharged  )

protectedpure virtual

Implemented in G4PreCompoundNeutron, and G4PreCompoundProton.

Referenced by ProbabilityDistributionFunction().

ProbabilityDistributionFunction()

G4double G4PreCompoundNucleon::ProbabilityDistributionFunction ( G4double  eKin, const G4Fragment &  aFragment  )

protectedvirtual

Implements G4PreCompoundFragment.

Definition at line 58 of file G4PreCompoundNucleon.cc.

{
  if ( !IsItPossible(aFragment) ) { return 0.0; }
 
  G4double U = aFragment.GetExcitationEnergy();
  G4int P = aFragment.GetNumberOfParticles();
  G4int H = aFragment.GetNumberOfHoles();
  G4int N = P + H;
 
  G4double g0 = (6.0/pi2)*aFragment.GetA_asInt()*theParameters->GetLevelDensity();
  G4double g1 = (6.0/pi2)*GetRestA()*theParameters->GetLevelDensity();
  
  G4double A0 = G4double(P*P+H*H+P-3*H)/(4.0*g0);
  G4double A1 = (A0 - 0.5*P)/g1;  
 
  G4double E0 = U - A0;
  if (E0 <= 0.0) { return 0.0; }
 
  G4double E1 = U - eKin - GetBindingEnergy() - A1;
  if (E1 <= 0.0) { return 0.0; }
 
  G4double rj = GetRj(P, aFragment.GetNumberOfCharged());
  G4double xs = CrossSection(eKin);
 
  if (rj <0.0 || xs < 0.0) {  
    std::ostringstream errOs;
    G4cout<<"WARNING:  NEGATIVE VALUES "<<G4endl;     
    errOs << "Rj=" << rj <<"  xsec("
      <<eKin/MeV<<" MeV)= "<< xs <<"  A= "<<GetA()<<"  Z= "<<GetZ()
      <<G4endl;
    throw G4HadronicException(__FILE__, __LINE__, errOs.str());
  }
 
  G4double Probability = fact * GetReducedMass() * rj * xs * eKin * P * (N-1) 
    * g4pow->powN(g1*E1/(g0*E0),N-2) * g1 / (E0*g0*g0);
  
  /*
  G4double Probability = 1.0/pi2*2.0/(hbarc*hbarc*hbarc) * GetReducedMass()
    * GetRj(aFragment.GetNumberOfParticles(), aFragment.GetNumberOfCharged())  
    * eKin*CrossSection(eKin)*millibarn * P*(N-1.0) * 
   std::pow(g1*E1/(g0*E0),N-2.0)/E0 * g1/(g0*g0);
  */
 
  return Probability;
}

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The documentation for this class was generated from the following files:

• G4PreCompoundNucleon.hh
• G4PreCompoundNucleon.cc