Spin resolved spectroscopy and microscopy: FOCUS SPLEED
The spin-polarization detector is based on spin-polarized low energy electron diffraction (SPLEED) from W(100).
The SPLEED principle offers the best figure of merit of all spin detectors in use.
For a recent characterization see Dehong Yu et al.
The SPLEED detector (patented design by Prof. J. Kirschner, KFA Jülich) uses low voltages (scattering energy is 104 eV) and features a very high asymmetry function of > 0.2. Four integrated channeltrons allow simultaneous measurement of transversal spin vector components.
See also at the OMICRON web site:
CSA 300 with SPLEED
SHA50 with SPLEED
3D CAD model of the CSA300 ecquipped with the SPLEED detector