π…πŽπ‚π”π’ unique π‡π€π—ππ„π„πŒ with patented π±π“πŽπ… highlighted in the Hard X-ray review paper of Anna Regoutz et al:

β€œFurthermore, HAXPEEM can be combined with a 2D imaging spin-filter behind the double-hemispheres as well as with an additional time-of-flight (ToF) detector. The latter approach, referred to as xToF, uses the doublehemispherical analyser as a band pass filter to limit the electron energy distribution to an optimal energy window for the subsequent ToF energy-filter”