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Khalil, Tarek: New resonant behavior in the spin resolved photoionization of the rare gas atoms Kr 3d and Xe 4p. 2002
Inhalt
Introduction
Theory
Interaction of atoms with electromagnetic field
Spin polarization transfer for dipole resonance
Characterization of Auger electrons
The resonantly excited Kr 3d-15p Auger electrons
Transferred spin polarization of resonantly excited Kr 3d-15p electrons
Nondipole contributions to the angular intensity distribution of photoelectrons
Contribution of nondipole \(Quadrupole –Dipole I
Separation of dipole and nondipole terms in particular geometries
Nondipole spin polarization angular distribution near ionization threshold
The Quadrupole resonances in the Xe 4p photoionization
Experimental Setup
Synchrotron Radiation
Photoionization Apparatus
Electron optics
Voltage supply and control of the electron optics
Mott polarimeter
Channeltrons and microchannelplates as electron detectors
Earth’s magnetic field compensation
Measurement of the Electron Spin Polarization
Determination of the Sherman function
Discussion of the statistical and instrumental errors and the uncertainties in the measurements due to background subtraction
Errors resulting from instrumental asymmetries and external fields
Calculation of the Error in the Asymmetry
Subtraction of spectral background in Xe 4p
Determination of the spin polarization of the net Signal
Subtraction of Background due to neighbouring resonant Kr 3d-13/2 transitions
The line fitting of the h? scan of the neighborin
Results and Discussion
Spin polarization transfer for dipole resonances
Resonantly excited 3d-15/2 5p state of Krypton
Resonantly excited 3d-13/2 5p state of Krypton
Quadrupole–Dipole Interference in Spin Polarizati
Asymmetry parameter ? close to ionization
Electron Correlations in Xe 4p photoelectrons
Transferred spin component Ptrans
Nondipole sensitive component Plong
Summary
Appendices
Appendix 1: Intrinsic parameters and Coulomb matrix elements of the Xe N4O2,3O2,33P1 Auger decay
Appendix 2: The parameters defining the nondipole corrections to the angular distribution and spin polarization of Xe np photoelectrons [18]
Abbreviations
References
Acknowledgements (Danksagung)
Oath \(Eidesstattliche Erklärung\)
Curriculum vitae