G4IonsShenCrossSection Class Reference

#include <G4IonsShenCrossSection.hh>

Inheritance diagram for G4IonsShenCrossSection:

Public Member Functions
	G4IonsShenCrossSection ()
virtual	~G4IonsShenCrossSection ()
virtual G4bool	IsElementApplicable (const G4DynamicParticle *aDP, G4int Z, const G4Material *)
virtual G4double	GetElementCrossSection (const G4DynamicParticle *, G4int Z, const G4Material *)
virtual G4double	GetIsoCrossSection (const G4DynamicParticle *, G4int Z, G4int A, const G4Isotope *iso=0, const G4Element *elm=0, const G4Material *mat=0)
virtual void	CrossSectionDescription (std::ostream &) const
Public Member Functions inherited from G4VCrossSectionDataSet
	G4VCrossSectionDataSet (const G4String &nam="")
virtual	~G4VCrossSectionDataSet ()
virtual G4bool	IsIsoApplicable (const G4DynamicParticle *, G4int Z, G4int A, const G4Element *elm=nullptr, const G4Material *mat=nullptr)
G4double	GetCrossSection (const G4DynamicParticle *, const G4Element *, const G4Material *mat=nullptr)
G4double	ComputeCrossSection (const G4DynamicParticle *, const G4Element *, const G4Material *mat=nullptr)
virtual G4double	ComputeCrossSectionPerElement (G4double kinEnergy, G4double loge, const G4ParticleDefinition *, const G4Element *, const G4Material *mat=nullptr)
virtual G4double	ComputeIsoCrossSection (G4double kinEnergy, G4double loge, const G4ParticleDefinition *, G4int Z, G4int A, const G4Isotope *iso=nullptr, const G4Element *elm=nullptr, const G4Material *mat=nullptr)
virtual const G4Isotope *	SelectIsotope (const G4Element *, G4double kinEnergy, G4double logE)
virtual void	BuildPhysicsTable (const G4ParticleDefinition &)
virtual void	DumpPhysicsTable (const G4ParticleDefinition &)
virtual void	SetVerboseLevel (G4int value)
G4double	GetMinKinEnergy () const
void	SetMinKinEnergy (G4double value)
G4double	GetMaxKinEnergy () const
void	SetMaxKinEnergy (G4double value)
bool	ForAllAtomsAndEnergies () const
void	SetForAllAtomsAndEnergies (G4bool val)
const G4String &	GetName () const
void	SetName (const G4String &nam)
G4VCrossSectionDataSet &	operator= (const G4VCrossSectionDataSet &right)=delete
	G4VCrossSectionDataSet (const G4VCrossSectionDataSet &)=delete

Additional Inherited Members
Protected Attributes inherited from G4VCrossSectionDataSet
G4int	verboseLevel
G4String	name

Detailed Description

Definition at line 51 of file G4IonsShenCrossSection.hh.

Constructor & Destructor Documentation

G4IonsShenCrossSection()

G4IonsShenCrossSection::G4IonsShenCrossSection

(

)

Definition at line 42 of file G4IonsShenCrossSection.cc.

  : G4VCrossSectionDataSet("IonsShen"),
    upperLimit( 10*GeV ),
//  lowerLimit( 10*MeV ),
    r0 ( 1.1 )
{}

~G4IonsShenCrossSection()

G4IonsShenCrossSection::~G4IonsShenCrossSection ( )

virtual

Definition at line 49 of file G4IonsShenCrossSection.cc.

{}

Member Function Documentation

CrossSectionDescription()

void G4IonsShenCrossSection::CrossSectionDescription ( std::ostream & outFile ) const

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 53 of file G4IonsShenCrossSection.cc.

{
  outFile << "G4IonsShenCrossSection calculates the total reaction cross\n"
          << "section for nucleus-nucleus scattering using the Shen\n"
          << "parameterization.  It is valid for projectiles and targets of\n"
          << "all Z, and projectile energies up to 1 TeV/n.  Above 10 GeV/n"
          << "the cross section is constant.  Below 10 MeV/n zero cross\n"
          << "is returned.\n";
}

GetElementCrossSection()

G4double G4IonsShenCrossSection::GetElementCrossSection ( const G4DynamicParticle * aParticle, G4int Z, const G4Material *  )

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 70 of file G4IonsShenCrossSection.cc.

{
  G4int A = G4lrint(G4NistManager::Instance()->GetAtomicMassAmu(Z));
  return GetIsoCrossSection(aParticle, Z, A);
}

GetIsoCrossSection()

G4double G4IonsShenCrossSection::GetIsoCrossSection ( const G4DynamicParticle * aParticle, G4int Z, G4int A, const G4Isotope * iso = 0, const G4Element * elm = 0, const G4Material * mat = 0 )

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 78 of file G4IonsShenCrossSection.cc.

{
   G4double xsection = 0.0;
 
   G4int Ap = aParticle->GetDefinition()->GetBaryonNumber();
   G4int Zp = G4lrint(aParticle->GetDefinition()->GetPDGCharge()/eplus); 
   G4double ke_per_N = aParticle->GetKineticEnergy() / Ap; 
   if ( ke_per_N > upperLimit ) { ke_per_N = upperLimit; }
 
   // Apply energy check, if less than lower limit then 0 value is returned
   //if (  ke_per_N < lowerLimit ) { return xsection; }
 
   G4Pow* g4pow = G4Pow::GetInstance();
  
   G4double cubicrAt = g4pow->Z13(At);
   G4double cubicrAp = g4pow->Z13(Ap);
 
   G4double Rt = 1.12 * cubicrAt - 0.94 * ( 1.0 / cubicrAt );
   G4double Rp = 1.12 * cubicrAp - 0.94 * ( 1.0 / cubicrAp );
 
   G4double r = Rt + Rp + 3.2;   // in fm
   G4double b = 1.0;   // in MeV/fm
   G4double targ_mass = G4NucleiProperties::GetNuclearMass(At, Zt);
 
   G4double proj_mass = aParticle->GetMass();
   G4double proj_momentum = aParticle->GetMomentum().mag();
 
   G4double Ecm = calEcmValue (proj_mass, targ_mass, proj_momentum); 
 
   G4double B = 1.44 * Zt * Zp / r - b * Rt * Rp / ( Rt + Rp ); 
   if(Ecm <= B) { return xsection; }
 
   G4double c = calCeValue ( ke_per_N / MeV  );  
 
   G4double R1 = r0 * (cubicrAt + cubicrAp + 1.85*cubicrAt*cubicrAp/(cubicrAt + cubicrAp) - c); 
 
   G4double R2 = 1.0 * ( At - 2 * Zt ) * Zp / ( Ap * At );
 
 
   G4double R3 = (0.176 / g4pow->A13(Ecm)) * cubicrAt * cubicrAp /(cubicrAt + cubicrAp);
 
   G4double R = R1 + R2 + R3;
 
   xsection = 10 * pi * R * R * ( 1 - B / Ecm );   
   xsection = xsection * millibarn;   // mulitply xsection by millibarn
 
   return xsection; 
}

Referenced by GetElementCrossSection().

IsElementApplicable()

G4bool G4IonsShenCrossSection::IsElementApplicable ( const G4DynamicParticle * aDP, G4int Z, const G4Material *  )

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 63 of file G4IonsShenCrossSection.cc.

{
  return (1 <= aDP->GetDefinition()->GetBaryonNumber());
}

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

• G4IonsShenCrossSection.hh
• G4IonsShenCrossSection.cc