Abstract
The PEBSI Monte Carlo code was recently upgraded towards usefulness to compute the effective Sherman function, which is used in electron Mott polarimetry. The results of the simulation were compared to experimental data for a 100 keV polarized electron beam. The properties of the effective Sherman function, as well as the problem of experiment optimization were analyzed using the data from the simulation.
Highlights
The method of Mott polarimetry is used to determine the spin–polarization of electron beams, taking advantage of the dependence of Mott scattering cross section on spin direction due to the spin–orbit interaction
The PEBSI Monte Carlo code was recently upgraded towards usefulness to compute the effective Sherman function, which is used in electron Mott polarimetry
Depolarization Accounting for the polarization change caused by Møller scattering in the PEBSI code allowed us to observe interesting effects related to this interaction
Summary
The method of Mott polarimetry is used to determine the spin–polarization of electron beams, taking advantage of the dependence of Mott scattering cross section on spin direction due to the spin–orbit interaction. The degree of the observed asymmetry is related to the Sherman function, dependent on scattering angle and beam energy. In this case the effective Sherman function has to be used, in which multiple interactions of the electron with several target atoms are accounted for.
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