Canonical aberration theory of multipoles: A critical reanalysis

Document Type

Article

Publication Date

12-1-1992

Abstract

Canonical aberration theory has been applied to analyze the aberration structure of both electrostatic and magnetic multipoles. It is shown rigorously that for 2N-pole magnetic multipoles with N=even, there is no axially symmetric aberration of any order, while for all the other cases of electromagnetic multipoles, there is always an axially symmetric aberration of the order of 2N-3. The method used is general in nature and can be applied to obtain detailed formulas of higher-order aberrations of multipoles and also to study their off-axis aberrations.

Identifier

36449008889 (Scopus)

Publication Title

Journal of Applied Physics

External Full Text Location

https://doi.org/10.1063/1.351236

ISSN

00218979

First Page

1588

Last Page

1593

Issue

4

Volume

71

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