Modeling of electrostatic collimator of charged particles beams on the basis of spherical mirror

Abstract

The modeling of the collimator of charged particles beams on the basis electrostatic spherical mirror was carried out. The conditions of collimation in the spherical mirror at the external reflection of charged particle beams were defined. The electrostatic spherical mirror in the external reflection regime of charged particle beams can be used as the collimator. The spherical mirror provides high quality of beams collimating and can be used an additional element in various devices. Calculation of electron-optical scheme was carried out by the "Focus" modeling program of axially-symmetrical systems of corpuscular optics with an arbitrary geometry of the electrodes.