Compact low-energy Mott polarimeter for use in energy- and angle-resolved polarization studies

A simple low-voltage (20-kV) UHV-compatible Mott polarimeter is described that incorporates an in-line retarding potential energy analyzer that, at incident electron energies ≤50 eV, provides an energy resolution of ≤0.5 eV. The polarimeter is very compact and is suitable for use in a wide variety of applications requiring energy- and angle-resolved polarization measurements.