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Proceedings Paper

Accurate computation of higher multipole components of electrostatic and magnetic deflectors with the first-order FEM
Author(s): Bohumila Lencova; Michal Lenc
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Paper Abstract

The first order finite element method allows an accurate computation of multipole components of electrostatic and magnetic fields. The paper presents an analytical expression of the first, the third and the fifth harmonic component of electrostatic deflectors defined on an electrostatic box and for magnetic deflectors made of straight or tapered saddle coils or straight toroidal coils in air. The axial field functions are compared with those computed with the first order finite element method for the same geometry, with a very good agreement of the results.

Paper Details

Date Published: 25 October 1996
PDF: 10 pages
Proc. SPIE 2858, Charged-Particle Optics II, (25 October 1996); doi: 10.1117/12.255513
Show Author Affiliations
Bohumila Lencova, Institute of Scientific Instruments (Czech Republic)
Michal Lenc, Masaryk Univ. (Czech Republic)

Published in SPIE Proceedings Vol. 2858:
Charged-Particle Optics II
Eric Munro, Editor(s)

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