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Proceedings Paper

Mesh refinement for finite-element field computations in electron optics
Author(s): Anjam Khursheed
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Paper Abstract

This paper presents a structured mesh refinement technique for the finite element method in electron optics. The technique is based upon using equipotential and flux lines on a trial potential distribution to generate the refinement mesh. For rotationally symmetric electron lenses, the method provides greater continuity of the axial field distribution derivatives than other mesh refinement techniques. For three dimensional electrostatic structures, the results show that the structured mesh refinement method can be used to improve the accuracy of field computations at points close to curved metal boundaries.

Paper Details

Date Published: 25 September 1997
PDF: 13 pages
Proc. SPIE 3155, Charged Particle Optics III, (25 September 1997); doi: 10.1117/12.279391
Show Author Affiliations
Anjam Khursheed, National Univ. of Singapore (Singapore)


Published in SPIE Proceedings Vol. 3155:
Charged Particle Optics III
Eric Munro, Editor(s)

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