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Proceedings Paper

Improved 3D boundary charge method for high-accuracy electric field calculation
Author(s): Hidekazu Murata; Toshimi Ohye; Hiroshi Shimoyama
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Paper Abstract

In this paper we propose an improved 3-D boundary charge method for high accuracy calculation of the electric field distribution, where differentiation of the coefficient matrix element (equals the potential coefficient) with respect to each coordinate component is needed. The differentiated potential coefficient, which is called the field coefficient, is expressed as a double integral. We have found that the first integral of the field coefficient can be done analytically in much the same ways as that of the potential coefficient, thereby greatly improving the computation time of the electric field distribution without any loss of accuracy. As a practical application of the method to field analysis, we have treated the misaligned diode system of a field emission gun.

Paper Details

Date Published: 25 September 1997
PDF: 12 pages
Proc. SPIE 3155, Charged Particle Optics III, (25 September 1997); doi: 10.1117/12.279392
Show Author Affiliations
Hidekazu Murata, Meijo Univ. (Japan)
Toshimi Ohye, Meijo Univ. (Japan)
Hiroshi Shimoyama, Meijo Univ. (Japan)

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

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