Magnetic Lens Pole Piece Axial Field Distribution Model

Abstract:

Axial field distribution model of pole piece has a certain theory value in the design of magnetic lenses. In this paper, on the base of analyzing pole piece axial field distribution model which other authors had deduced, using the nonlinear least square method and the curve fitting tool of MATLAB software, the Gaussian model for axial field distribution is obtained. By comparing these models, the Gaussian model has higher precision and also has a certain practical reference value.

• Periodical: Applied Mechanics and Materials (Volume 415)
• Pages: 488-493
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.415.488
• Online since: September 2013
• Authors: Xiu Yan Zhang, Quan Lin Dong, Yong Jun Cui
• Keywords: Axial Field Distribution, Magnetic Lens, Nonlinear Least Square Method, Pole Piece

References

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