An analysis of a wide-angle deflection system

Date

1974

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

A numerical analysis of a magnetic deflection system with a magnetic lens has been studied. Several electron trajectories were computed to find the disc of minimum confusion. Pincushion distortion and anisotropic distortion were observed. The spot was varied by changing one of the following parameters, deflection current, anode voltage, and the distance between the magnetic lens and the magnetic deflection field. One-dimensional and two-dimensional deflection systems were analyzed. Techniques to reduce the spot distortion, such as dynamic focusing and anastigmatism, were verified numerically.

Description

Keywords

Citation