G4GEMCoulombBarrierHE Class Reference

#include <G4GEMCoulombBarrierHE.hh>

Inheritance diagram for G4GEMCoulombBarrierHE:

Public Member Functions
	G4GEMCoulombBarrierHE (G4int anA, G4int aZ)
	~G4GEMCoulombBarrierHE ()
G4double	GetCoulombBarrier (G4int ARes, G4int ZRes, G4double U) const
virtual G4double	BarrierPenetrationFactor (G4double) const
G4double	CalcCompoundRadius (G4int ARes) const

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Detailed Description

Definition at line 39 of file G4GEMCoulombBarrierHE.hh.

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Constructor & Destructor Documentation

G4GEMCoulombBarrierHE::G4GEMCoulombBarrierHE	(	G4int	anA,
		G4int	aZ
	)

Definition at line 37 of file G4GEMCoulombBarrierHE.cc.

References G4GEMCoulombBarrierHE().

Referenced by G4GEMCoulombBarrierHE().

                                                                :
  G4VCoulombBarrier(anA,aZ) 
{}

G4GEMCoulombBarrierHE::~G4GEMCoulombBarrierHE

(

)

Definition at line 41 of file G4GEMCoulombBarrierHE.cc.

{}

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Member Function Documentation

virtual G4double G4GEMCoulombBarrierHE::BarrierPenetrationFactor

(

G4double

)

const [inline, virtual]

Definition at line 59 of file G4GEMCoulombBarrierHE.hh.

  {return 1.0;};

G4double G4GEMCoulombBarrierHE::CalcCompoundRadius

(

G4int

ARes

)

const

Definition at line 71 of file G4GEMCoulombBarrierHE.cc.

References G4VCoulombBarrier::GetA(), G4Pow::GetInstance(), and G4Pow::Z13().

{
  G4Pow* g4pow = G4Pow::GetInstance();
  G4double AresOneThird = g4pow->Z13(ARes);
  G4double AejectOneThird = g4pow->Z13(GetA());

  G4double Result = 1.12*(AresOneThird + AejectOneThird) - 
    0.86*(AresOneThird+AejectOneThird)/(AresOneThird*AejectOneThird);

  return Result*fermi;
}

G4double G4GEMCoulombBarrierHE::GetCoulombBarrier	(	G4int	ARes,
		G4int	ZRes,
		G4double	U
	)			const [virtual]

Implements G4VCoulombBarrier.

Definition at line 44 of file G4GEMCoulombBarrierHE.cc.

References G4cout, and G4endl.

{
  G4double Barrier = 0.0;
  if (ZRes > ARes || ARes < 1) {
    G4cout << "G4GEMCoulombBarrierHE::GetCoulombBarrier: "
           << "Wrong values for "
           << "residual nucleus A = " << ARes << " "
           << "and residual nucleus Z = " << ZRes << G4endl;
    throw G4HadronicException(__FILE__, __LINE__,"FATAL error");
  }
  if (GetZ() == 0) {
    Barrier = 0.0;   // If there is no charge there is neither barrier
  } else {
    G4double CompoundRadius = CalcCompoundRadius(ARes);
    Barrier = ( elm_coupling * GetZ() * ZRes)/(CompoundRadius+3.75*fermi);
    
    // Barrier penetration coeficient
    //    G4double K = BarrierPenetrationFactor(ZRes);
    //    Barrier *= K;
    
    Barrier /= (1.0 + std::sqrt(U/static_cast<G4double>(2*ARes)));
  }
  return Barrier;
}

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

• G4GEMCoulombBarrierHE.hh
• G4GEMCoulombBarrierHE.cc

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