G4WentzelVIRelXSection Class Reference

#include <G4WentzelVIRelXSection.hh>

Inheritance diagram for G4WentzelVIRelXSection:

Public Member Functions
	G4WentzelVIRelXSection ()
	~G4WentzelVIRelXSection () override
G4double	SetupKinematic (G4double kinEnergy, const G4Material *mat) override
G4WentzelVIRelXSection &	operator= (const G4WentzelVIRelXSection &right)=delete
	G4WentzelVIRelXSection (const G4WentzelVIRelXSection &)=delete
Public Member Functions inherited from G4WentzelOKandVIxSection
	G4WentzelOKandVIxSection (G4bool comb=true)
virtual	~G4WentzelOKandVIxSection ()
void	Initialise (const G4ParticleDefinition *, G4double CosThetaLim)
void	SetupParticle (const G4ParticleDefinition *)
virtual G4double	SetupKinematic (G4double kinEnergy, const G4Material *mat)
G4double	SetupTarget (G4int Z, G4double cut)
G4double	ComputeTransportCrossSectionPerAtom (G4double CosThetaMax)
G4ThreeVector &	SampleSingleScattering (G4double CosThetaMin, G4double CosThetaMax, G4double elecRatio)
G4double	ComputeSecondTransportMoment (G4double CosThetaMax)
G4double	ComputeNuclearCrossSection (G4double CosThetaMin, G4double CosThetaMax)
G4double	ComputeElectronCrossSection (G4double CosThetaMin, G4double CosThetaMax)
void	SetTargetMass (G4double value)
G4double	GetMomentumSquare () const
G4double	GetCosThetaNuc () const
G4double	GetCosThetaElec () const
G4WentzelOKandVIxSection &	operator= (const G4WentzelOKandVIxSection &right)=delete
	G4WentzelOKandVIxSection (const G4WentzelOKandVIxSection &)=delete

Additional Inherited Members
Protected Member Functions inherited from G4WentzelOKandVIxSection
void	ComputeMaxElectronScattering (G4double cut)
void	InitialiseA ()
G4double	FlatFormfactor (G4double x)
Protected Attributes inherited from G4WentzelOKandVIxSection
const G4ParticleDefinition *	theProton
const G4ParticleDefinition *	theElectron
const G4ParticleDefinition *	thePositron
const G4ParticleDefinition *	particle = nullptr
const G4Material *	currentMaterial = nullptr
G4NistManager *	fNistManager
G4Pow *	fG4pow
G4ScreeningMottCrossSection *	fMottXSection = nullptr
G4ThreeVector	temp
G4double	coeff
G4double	cosTetMaxElec = 1.0
G4double	cosTetMaxNuc = 1.0
G4double	cosThetaMax = -1.0
G4double	chargeSquare = 0.0
G4double	charge3 = 0.0
G4double	spin = 0.0
G4double	mass = 0.0
G4double	tkin = 0.0
G4double	mom2 = 0.0
G4double	momCM2 = 0.0
G4double	invbeta2 = 1.0
G4double	kinFactor = 1.0
G4double	etag = DBL_MAX
G4double	ecut = DBL_MAX
G4double	targetMass
G4double	screenZ = 0.0
G4double	formfactA = 0.0
G4double	factorA2 = 0.0
G4double	factB = 0.0
G4double	factD = 0.0
G4double	fMottFactor = 1.0
G4double	gam0pcmp = 1.0
G4double	pcmp2 = 1.0
G4int	targetZ = 0
G4int	nwarnings = 0
G4NuclearFormfactorType	fNucFormfactor = fExponentialNF
G4bool	isCombined
Static Protected Attributes inherited from G4WentzelOKandVIxSection
static G4double	ScreenRSquareElec [100] = {0.0}
static G4double	ScreenRSquare [100] = {0.0}
static G4double	FormFactor [100] = {0.0}

Detailed Description

Definition at line 63 of file G4WentzelVIRelXSection.hh.

Constructor & Destructor Documentation

G4WentzelVIRelXSection() [1/2]

G4WentzelVIRelXSection::G4WentzelVIRelXSection ( )

explicitdefault

~G4WentzelVIRelXSection()

G4WentzelVIRelXSection::~G4WentzelVIRelXSection ( )

overridedefault

G4WentzelVIRelXSection() [2/2]

G4WentzelVIRelXSection::G4WentzelVIRelXSection ( const G4WentzelVIRelXSection &  )

delete

Member Function Documentation

operator=()

G4WentzelVIRelXSection & G4WentzelVIRelXSection::operator= ( const G4WentzelVIRelXSection &  right )

delete

SetupKinematic()

G4double G4WentzelVIRelXSection::SetupKinematic ( G4double  kinEnergy, const G4Material *  mat  )

overridevirtual

Reimplemented from G4WentzelOKandVIxSection.

Definition at line 60 of file G4WentzelVIRelXSection.cc.

{
  if(kinEnergy != tkin || mat != currentMaterial) { 
 
    currentMaterial = mat;
    tkin  = kinEnergy;
    G4double momLab2  = tkin*(tkin + 2.0*mass);
    
    G4double etot = tkin + mass;
    G4double ptot = std::sqrt(momLab2);
    G4double m12  = mass*mass;
 
    // relativistic reduced mass from publucation
    // A.P. Martynenko, R.N. Faustov, Teoret. mat. Fiz. 64 (1985) 179
        
    //incident particle & target nucleus
    G4double Ecm = std::sqrt(m12 + targetMass*targetMass + 2.0*etot*targetMass);
    G4double mu_rel = mass*targetMass/Ecm;
    G4double momCM  = ptot*targetMass/Ecm;
    // relative system
    mom2 = momCM*momCM;
    invbeta2 = 1.0 +  mu_rel*mu_rel/mom2;
 
    factB = spin/invbeta2;
    factD = std::sqrt(mom2)/targetMass;
    cosTetMaxNuc = isCombined ? 
      std::max(cosThetaMax, 1.-factorA2*mat->GetIonisation()->GetInvA23()/mom2)
      : cosThetaMax;
  } 
  return cosTetMaxNuc;
}

Referenced by G4hCoulombScatteringModel::ComputeCrossSectionPerAtom(), and G4hCoulombScatteringModel::SampleSecondaries().

---

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

• G4WentzelVIRelXSection.hh
• G4WentzelVIRelXSection.cc