Optimum for the parameters of aberration and distortion of narrow e-beam in normal solution

yin ming; l feng-jie; zhang qi-wu

Volume 17 Issue 02

Feb. 2005

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Article Navigation > High Power Laser and Particle Beams > 2005 > 17(02): 271-

xu hong-liang, wang lin, li yong-jun, et al. Study of RF system of Hefei Ｓtorage Ｒing under injection[J]. High Power Laser and Particle Beams, 2004, 16.

Citation:

yin ming, l feng-jie, zhang qi-wu. Optimum for the parameters of aberration and distortion of narrow e-beam in normal solution[J]. High Power Laser and Particle Beams, 2005, 17: 271- .

xu hong-liang, wang lin, li yong-jun, et al. Study of RF system of Hefei Ｓtorage Ｒing under injection[J]. High Power Laser and Particle Beams, 2004, 16.

Citation:

yin ming, l feng-jie, zhang qi-wu. Optimum for the parameters of aberration and distortion of narrow e-beam in normal solution[J]. High Power Laser and Particle Beams, 2005, 17: 271- .

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Optimum for the parameters of aberration and distortion of narrow e-beam in normal solution

1.
School of Control Science and Engineering,Shandong University,Jinan 250061,China

Publish Date: 2005-02-15

Abstract

Abstract

This paper describes the aberration and distortion of e-beam deflection magnetic field in which the parameters keep close to in the normal solution. The relationship between the principal trajectory of e-beam and aberrations has been investigated in combined round magnetic lenses and deflection system of SDS-3 e-beam machine．Formulae for the first-order chromatic and third-order geometrical aberration coefficients of superimposed magnetic focus and deflection field of both electric and magnetic type in the case of a point source on the Z-axis are obtained．The aberration of superimposed focus-deflection system is so small that the dynamic correction is unnecessary.
- e-beam,
- combined deflection,
- aberration,
- distortion,
- astigmatism

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