G4PolarizedPhotoElectricXS Class Reference

#include <G4PolarizedPhotoElectricXS.hh>

Inheritance diagram for G4PolarizedPhotoElectricXS:

Public Member Functions
	G4PolarizedPhotoElectricXS ()
	~G4PolarizedPhotoElectricXS () override
void	Initialize (G4double aGammaE, G4double aLept0E, G4double sintheta, const G4StokesVector &beamPol, const G4StokesVector &, G4int flag=0) override
G4double	XSection (const G4StokesVector &pol2, const G4StokesVector &pol3) override
G4StokesVector	GetPol2 () override
G4StokesVector	GetPol3 () override
G4PolarizedPhotoElectricXS &	operator= (const G4PolarizedPhotoElectricXS &right)=delete
	G4PolarizedPhotoElectricXS (const G4PolarizedPhotoElectricXS &)=delete
Public Member Functions inherited from G4VPolarizedXS
	G4VPolarizedXS ()
virtual	~G4VPolarizedXS ()
virtual G4double	TotalXSection (G4double xmin, G4double xmax, G4double y, const G4StokesVector &pol0, const G4StokesVector &pol1)
G4double	GetYmin ()
virtual G4double	GetXmin (G4double y)
virtual G4double	GetXmax (G4double y)
void	SetMaterial (G4double A, G4double Z, G4double coul)
G4VPolarizedXS &	operator= (const G4VPolarizedXS &right)=delete
	G4VPolarizedXS (const G4VPolarizedXS &)=delete

Additional Inherited Members
Protected Member Functions inherited from G4VPolarizedXS
void	SetXmin (G4double xmin)
void	SetXmax (G4double xmax)
void	SetYmin (G4double ymin)
Protected Attributes inherited from G4VPolarizedXS
G4double	fXmin
G4double	fXmax
G4double	fYmin
G4double	fA
G4double	fZ
G4double	fCoul

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;
}

Referenced by G4PolarizedPhotoElectricXS(), and operator=().

~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;
}

GetPol3()

G4StokesVector G4PolarizedPhotoElectricXS::GetPol3 ( )

overridevirtual

Reimplemented from G4VPolarizedXS.

Definition at line 117 of file G4PolarizedPhotoElectricXS.cc.

{
  return G4StokesVector();
}

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
  }
}

operator=()

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

delete

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.;
}

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

• G4PolarizedPhotoElectricXS.hh
• G4PolarizedPhotoElectricXS.cc