Abstract
The plane-symmetrical electrostatic energy analyzer of charged particle beams based on a modified field is proposed. The optimal electron-optical scheme of the energy analyzer is determined. A “ring-ring” type second-order angular focusing scheme is found. The focusing properties of the proposed energy analyzer are calculated. The instrumental function of the modified electron mirror in the case of a point source was obtained. The optimal values of the entrance parameters of the charged particle beams are obtained. The relative energy resolution in energy and luminosity of device are estimated.