G4PolarizedPEEffectCrossSection Class Reference

#include <G4PolarizedPEEffectCrossSection.hh>

Inheritance diagram for G4PolarizedPEEffectCrossSection:

G4VPolarizedCrossSection

Public Member Functions

 G4PolarizedPEEffectCrossSection ()
virtual ~G4PolarizedPEEffectCrossSection ()
virtual void Initialize (G4double aGammaE, G4double aLept0E, G4double sintheta, const G4StokesVector &beamPol, const G4StokesVector &, G4int flag=0)
G4double XSection (const G4StokesVector &pol2, const G4StokesVector &pol3)
G4StokesVector GetPol2 ()
G4StokesVector GetPol3 ()

Detailed Description

Definition at line 50 of file G4PolarizedPEEffectCrossSection.hh.


Constructor & Destructor Documentation

G4PolarizedPEEffectCrossSection::G4PolarizedPEEffectCrossSection (  ) 

Definition at line 48 of file G4PolarizedPEEffectCrossSection.cc.

00049   {
00050    cout<<"G4PolarizedPEEffectCrossSection() init\n";
00051 
00052 }

G4PolarizedPEEffectCrossSection::~G4PolarizedPEEffectCrossSection (  )  [virtual]

Definition at line 55 of file G4PolarizedPEEffectCrossSection.cc.

00056 {}


Member Function Documentation

G4StokesVector G4PolarizedPEEffectCrossSection::GetPol2 (  )  [virtual]

Reimplemented from G4VPolarizedCrossSection.

Definition at line 150 of file G4PolarizedPEEffectCrossSection.cc.

Referenced by G4PolarizedPEEffectModel::SampleSecondaries().

00151 {
00152   return theFinalElectronPolarization;
00153 }

G4StokesVector G4PolarizedPEEffectCrossSection::GetPol3 (  )  [virtual]

Reimplemented from G4VPolarizedCrossSection.

Definition at line 157 of file G4PolarizedPEEffectCrossSection.cc.

00158 {
00159   return G4StokesVector();
00160 }

void G4PolarizedPEEffectCrossSection::Initialize ( G4double  aGammaE,
G4double  aLept0E,
G4double  sintheta,
const G4StokesVector beamPol,
const G4StokesVector ,
G4int  flag = 0 
) [virtual]

Reimplemented from G4VPolarizedCrossSection.

Definition at line 59 of file G4PolarizedPEEffectCrossSection.cc.

Referenced by G4PolarizedPEEffectModel::SampleSecondaries().

00065 {
00066   //   cout<<"G4PolarizedPEEffectCrossSection::Initialize()\n";
00067 
00068 // G4StokesVector PolarizedPhotoElectricEffect::Transfer_G4StokesVector(
00069 //     G4double aGammaE,                 // Incoming Primary Gamma Energy.
00070 //     G4ThreeVector aGammaDir,          // Incoming Primary Gamma Direction.
00071 //     G4StokesVector beamPol,          // Incoming Primary Gamma  polarization.
00072 //     G4double aLept0E,                 // The Lepton  e- of interest Total energy.
00073 //     G4ThreeVector aParticl_01_Dir,    // The Lepton  e- of interest direction.
00074 //     G4double cos_aTetha_Angle            // The lepton of interest Scattering angle.
00075 //     )
00076 
00077 // ***********************************************************
00078 // ************  added by Karim   Polarization transfer to e- in PhotoelectricEffect.
00079 // ************ 
00080 // ***********************************************************
00081     G4double Gfactor   = aLept0E/electron_mass_c2+1;
00082     G4double Gfactor_2 = Gfactor * Gfactor;
00083 
00084     G4double BETA    = sqrt(1. - 1./(Gfactor_2));
00085 
00086     G4double Stokes_P3  = beamPol.z()   ;                       
00087     
00088     G4double m0_c2  = electron_mass_c2; 
00089     G4double Lept0E = aLept0E/m0_c2+1,   Lept0E2 = Lept0E * Lept0E ;
00090     G4double GammaE = aGammaE/m0_c2;
00091 
00092 
00093 //     G4double cosTheta = cos_aTetha_Angle;
00094 //     G4double sinTheta = sqrt(1- cos_aTetha_Angle * cos_aTetha_Angle);
00095     G4double cosTheta = std::sqrt(1. - sinTheta*sinTheta);
00096 
00097     G4double D_Lepton0 = (1./GammaE) * ((2./(GammaE*Lept0E*(1-BETA*cosTheta)))-1.);   
00098 
00099     G4double I_Lepton0 = 1.0+D_Lepton0;
00100 
00101     G4double A_Lepton0 = (Lept0E/(Lept0E+1))*(2.0/(GammaE*Lept0E) 
00102                                               + BETA*cosTheta 
00103                                               +(2.0/((GammaE*Lept0E2)*(1.0-BETA*cosTheta)))) / I_Lepton0 ;
00104     
00105     G4double B_Lepton0 = (Lept0E/(Lept0E+1.0)) * BETA * sinTheta * (2.0/(GammaE*Lept0E*(1-BETA*cosTheta))-1.0)/I_Lepton0;   
00106 
00107     G4double Stokes_S1 = (Stokes_P3 * B_Lepton0) ;
00108     G4double Stokes_S2 = 0.;
00109     G4double Stokes_S3 = (Stokes_P3 * A_Lepton0) ; 
00110 
00111     
00112     theFinalElectronPolarization.setX(Stokes_S1);
00113     theFinalElectronPolarization.setY(Stokes_S2);
00114     theFinalElectronPolarization.setZ(Stokes_S3);
00115 
00116     if((theFinalElectronPolarization.x()*theFinalElectronPolarization.x()
00117         + theFinalElectronPolarization.y()* theFinalElectronPolarization.y()
00118         + theFinalElectronPolarization.z()* theFinalElectronPolarization.z())>1)
00119         
00120     {
00121         cout<<"Warning: PhotoelectricEffect Problem in pol-transfer photon to lepton:Px2 + Py2 + Pz2 > 1"<<endl;
00122         cout<<"Polarization transfer forced to be total and similar as incoming Photo"<<endl;
00123         // *KL* Surprising if it arrives (never seen it up to now)
00124         theFinalElectronPolarization = beamPol; // suplement de securite
00125 //      cout<<"PhotoEffect okay :"
00126 //            <<"\t"<<(aLept0E-m0_c2)/aGammaE
00127 //            <<"\t"<<aGammaE
00128 //            <<"\t"<<aLept0E
00129 //            <<"\t"<<cos_aTetha_Angle
00130 //            <<"\t"<<beamPol
00131 //            <<"\t"<<theFinalElectronPolarization
00132 //            <<"\t"<<A_Lepton0
00133 //            <<endl;
00134     }
00135 }

G4double G4PolarizedPEEffectCrossSection::XSection ( const G4StokesVector pol2,
const G4StokesVector pol3 
) [virtual]

Implements G4VPolarizedCrossSection.

Definition at line 141 of file G4PolarizedPEEffectCrossSection.cc.

00143 {
00144   cout<<"ERROR dummy routine G4PolarizedPEEffectCrossSection::XSection() called\n";
00145   return 0;
00146 } 


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