G4PolarizedPhotoElectricXS Class Reference

#include <G4PolarizedPhotoElectricXS.hh>

Inheritance diagram for G4PolarizedPhotoElectricXS:

Public Member Functions
	G4PolarizedPhotoElectricXS ()
	G4PolarizedPhotoElectricXS (const G4PolarizedPhotoElectricXS &)=delete
G4StokesVector	GetPol2 () override
G4StokesVector	GetPol3 () override
virtual G4double	GetXmax (G4double y)
virtual G4double	GetXmin (G4double y)
G4double	GetYmin ()
void	Initialize (G4double aGammaE, G4double aLept0E, G4double sintheta, const G4StokesVector &beamPol, const G4StokesVector &, G4int flag=0) override
G4PolarizedPhotoElectricXS &	operator= (const G4PolarizedPhotoElectricXS &right)=delete
void	SetMaterial (G4double A, G4double Z, G4double coul)
virtual G4double	TotalXSection (G4double xmin, G4double xmax, G4double y, const G4StokesVector &pol0, const G4StokesVector &pol1)
G4double	XSection (const G4StokesVector &pol2, const G4StokesVector &pol3) override
	~G4PolarizedPhotoElectricXS () override

Protected Member Functions
void	SetXmax (G4double xmax)
void	SetXmin (G4double xmin)
void	SetYmin (G4double ymin)

Protected Attributes
G4double	fA
G4double	fCoul
G4double	fXmax
G4double	fXmin
G4double	fYmin
G4double	fZ

Private Attributes
G4StokesVector	fFinalElectronPolarization

Detailed Description

Definition at line 39 of file G4PolarizedPhotoElectricXS.hh.

Constructor & Destructor Documentation

G4PolarizedPhotoElectricXS() [1/2]

G4PolarizedPhotoElectricXS::G4PolarizedPhotoElectricXS

(

)

Definition at line 35 of file G4PolarizedPhotoElectricXS.cc.

{
  fFinalElectronPolarization = G4StokesVector::ZERO;
}

References fFinalElectronPolarization, and G4StokesVector::ZERO.

~G4PolarizedPhotoElectricXS()

G4PolarizedPhotoElectricXS::~G4PolarizedPhotoElectricXS ( )

override

Definition at line 41 of file G4PolarizedPhotoElectricXS.cc.

{}

G4PolarizedPhotoElectricXS() [2/2]

G4PolarizedPhotoElectricXS::G4PolarizedPhotoElectricXS ( const G4PolarizedPhotoElectricXS &  )

delete

Member Function Documentation

GetPol2()

G4StokesVector G4PolarizedPhotoElectricXS::GetPol2 ( )

overridevirtual

Reimplemented from G4VPolarizedXS.

Definition at line 111 of file G4PolarizedPhotoElectricXS.cc.

{
  return fFinalElectronPolarization;
}

References fFinalElectronPolarization.

Referenced by G4PolarizedPhotoElectricModel::SampleSecondaries().

GetPol3()

G4StokesVector G4PolarizedPhotoElectricXS::GetPol3 ( )

overridevirtual

Reimplemented from G4VPolarizedXS.

Definition at line 117 of file G4PolarizedPhotoElectricXS.cc.

{
  return G4StokesVector();
}

GetXmax()

G4double G4VPolarizedXS::GetXmax ( G4double  y )

virtualinherited

Reimplemented in G4PolarizedAnnihilationXS.

Definition at line 84 of file G4VPolarizedXS.cc.

{ return fXmax; }

References G4VPolarizedXS::fXmax.

GetXmin()

G4double G4VPolarizedXS::GetXmin ( G4double  y )

virtualinherited

Reimplemented in G4PolarizedAnnihilationXS.

Definition at line 81 of file G4VPolarizedXS.cc.

{ return fXmin; }

References G4VPolarizedXS::fXmin.

GetYmin()

G4double G4VPolarizedXS::GetYmin ( )

inlineinherited

Definition at line 65 of file G4VPolarizedXS.hh.

{ return fYmin; }

References G4VPolarizedXS::fYmin.

Initialize()

void G4PolarizedPhotoElectricXS::Initialize ( G4double  aGammaE, G4double  aLept0E, G4double  sintheta, const G4StokesVector &  beamPol, const G4StokesVector &  , G4int  flag = 0  )

overridevirtual

Implements G4VPolarizedXS.

Definition at line 44 of file G4PolarizedPhotoElectricXS.cc.

{
  // Polarization transfer to e- in PhotoelectricEffect.
  G4double Gfactor   = aLept0E / CLHEP::electron_mass_c2 + 1.;
  G4double Gfactor_2 = Gfactor * Gfactor;
 
  G4double beta = std::sqrt(1. - 1. / (Gfactor_2));
 
  G4double Stokes_P3 = beamPol.z();
 
  G4double Lept0E  = aLept0E / CLHEP::electron_mass_c2 + 1.;
  G4double Lept0E2 = Lept0E * Lept0E;
  G4double GammaE  = aGammaE / CLHEP::electron_mass_c2;
 
  G4double cosTheta = std::sqrt(1. - sinTheta * sinTheta);
 
  G4double I_Lepton0 =
    1.0 +
    (1. / GammaE) * ((2. / (GammaE * Lept0E * (1 - beta * cosTheta))) - 1.);
 
  G4double A_Lepton0 =
    (Lept0E / (Lept0E + 1)) *
    (2.0 / (GammaE * Lept0E) + beta * cosTheta +
     (2.0 / ((GammaE * Lept0E2) * (1.0 - beta * cosTheta)))) /
    I_Lepton0;
 
  G4double B_Lepton0 = (Lept0E / (Lept0E + 1.0)) * beta * sinTheta *
                       (2.0 / (GammaE * Lept0E * (1 - beta * cosTheta)) - 1.0) /
                       I_Lepton0;
 
  fFinalElectronPolarization.setX(Stokes_P3 * B_Lepton0);
  fFinalElectronPolarization.setY(0.);
  fFinalElectronPolarization.setZ(Stokes_P3 * A_Lepton0);
 
  if((fFinalElectronPolarization.x() * fFinalElectronPolarization.x() +
      fFinalElectronPolarization.y() * fFinalElectronPolarization.y() +
      fFinalElectronPolarization.z() * fFinalElectronPolarization.z()) > 1.)
 
  {
    G4ExceptionDescription ed;
    ed << "Warning: PhotoelectricEffect Problem in pol-transfer photon to "
          "lepton:Px2 + Py2 + Pz2 > 1\n";
    ed << "Polarization transfer forced to be total and similar as incoming "
          "Photo\n";
    G4Exception("G4PolarizedPhotoElectricXS::Initialize", "pol023", JustWarning,
                ed);
    fFinalElectronPolarization = beamPol;  // to be safe
  }
}

References anonymous_namespace{G4PionRadiativeDecayChannel.cc}::beta, CLHEP::electron_mass_c2, fFinalElectronPolarization, G4Exception(), JustWarning, CLHEP::Hep3Vector::setX(), CLHEP::Hep3Vector::setY(), CLHEP::Hep3Vector::setZ(), CLHEP::Hep3Vector::x(), CLHEP::Hep3Vector::y(), and CLHEP::Hep3Vector::z().

Referenced by G4PolarizedPhotoElectricModel::SampleSecondaries().

operator=()

G4PolarizedPhotoElectricXS & G4PolarizedPhotoElectricXS::operator= ( const G4PolarizedPhotoElectricXS &  right )

delete

SetMaterial()

void G4VPolarizedXS::SetMaterial ( G4double  A, G4double  Z, G4double  coul  )

inlineinherited

Definition at line 71 of file G4VPolarizedXS.hh.

  {
    fA    = A;
    fZ    = Z;
    fCoul = coul;
  }

References A, G4VPolarizedXS::fA, G4VPolarizedXS::fCoul, G4VPolarizedXS::fZ, and Z.

Referenced by G4PolarizedBremsstrahlungModel::SampleSecondaries(), G4PolarizedGammaConversionModel::SampleSecondaries(), and G4PolarizedPhotoElectricModel::SampleSecondaries().

SetXmax()

void G4VPolarizedXS::SetXmax ( G4double  xmax )

inlineprotectedinherited

Definition at line 84 of file G4VPolarizedXS.hh.

{ fXmax = xmax; }

References G4VPolarizedXS::fXmax.

Referenced by G4PolarizedIonisationMollerXS::G4PolarizedIonisationMollerXS(), and G4PolarizedIonisationBhabhaXS::Initialize().

SetXmin()

void G4VPolarizedXS::SetXmin ( G4double  xmin )

inlineprotectedinherited

Definition at line 83 of file G4VPolarizedXS.hh.

{ fXmin = xmin; }

References G4VPolarizedXS::fXmin.

SetYmin()

void G4VPolarizedXS::SetYmin ( G4double  ymin )

inlineprotectedinherited

Definition at line 85 of file G4VPolarizedXS.hh.

{ fYmin = ymin; }

References G4VPolarizedXS::fYmin.

Referenced by G4PolarizedComptonXS::G4PolarizedComptonXS().

TotalXSection()

G4double G4VPolarizedXS::TotalXSection ( G4double  xmin, G4double  xmax, G4double  y, const G4StokesVector &  pol0, const G4StokesVector &  pol1  )

virtualinherited

Reimplemented in G4PolarizedAnnihilationXS, G4PolarizedComptonXS, G4PolarizedIonisationBhabhaXS, and G4PolarizedIonisationMollerXS.

Definition at line 86 of file G4VPolarizedXS.cc.

{
  G4ExceptionDescription ed;
  ed << "WARNING virtual function G4VPolarizedXS::TotalXSection() "
        "called.\n";
  G4Exception("G4VPolarizedXS::TotalXSection", "pol032", FatalException, ed);
  return 0.;
}

References FatalException, and G4Exception().

Referenced by G4PolarizedIonisationModel::ComputeCrossSectionPerElectron().

XSection()

G4double G4PolarizedPhotoElectricXS::XSection ( const G4StokesVector &  pol2, const G4StokesVector &  pol3  )

overridevirtual

Implements G4VPolarizedXS.

Definition at line 99 of file G4PolarizedPhotoElectricXS.cc.

{
  G4ExceptionDescription ed;
  ed << "ERROR dummy routine G4PolarizedPhotoElectricXS::XSection() "
        "called\n";
  G4Exception("G4PolarizedPhotoElectricXS::XSection", "pol024", FatalException,
              ed);
  return 0.;
}

References FatalException, and G4Exception().

Field Documentation

fA

G4double G4VPolarizedXS::fA

protectedinherited

Definition at line 90 of file G4VPolarizedXS.hh.

Referenced by G4VPolarizedXS::SetMaterial().

fCoul

G4double G4VPolarizedXS::fCoul

protectedinherited

Definition at line 91 of file G4VPolarizedXS.hh.

Referenced by G4PolarizedBremsstrahlungXS::Initialize(), G4PolarizedGammaConversionXS::Initialize(), and G4VPolarizedXS::SetMaterial().

fFinalElectronPolarization

G4StokesVector G4PolarizedPhotoElectricXS::fFinalElectronPolarization

private

Definition at line 61 of file G4PolarizedPhotoElectricXS.hh.

Referenced by G4PolarizedPhotoElectricXS(), GetPol2(), and Initialize().

fXmax

G4double G4VPolarizedXS::fXmax

protectedinherited

Definition at line 88 of file G4VPolarizedXS.hh.

Referenced by G4VPolarizedXS::GetXmax(), and G4VPolarizedXS::SetXmax().

fXmin

G4double G4VPolarizedXS::fXmin

protectedinherited

Definition at line 88 of file G4VPolarizedXS.hh.

Referenced by G4VPolarizedXS::GetXmin(), and G4VPolarizedXS::SetXmin().

fYmin

G4double G4VPolarizedXS::fYmin

protectedinherited

Definition at line 88 of file G4VPolarizedXS.hh.

Referenced by G4VPolarizedXS::GetYmin(), and G4VPolarizedXS::SetYmin().

fZ

G4double G4VPolarizedXS::fZ

protectedinherited

Definition at line 90 of file G4VPolarizedXS.hh.

Referenced by G4PolarizedBremsstrahlungXS::Initialize(), G4PolarizedGammaConversionXS::Initialize(), G4VPolarizedXS::SetMaterial(), and G4PolarizedComptonXS::TotalXSection().

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

• source/processes/electromagnetic/polarisation/include/G4PolarizedPhotoElectricXS.hh
• source/processes/electromagnetic/polarisation/src/G4PolarizedPhotoElectricXS.cc