Design and analysis of the optical properties of electrostatic unipotential lens (einzel lens)

Ahmad, Ahmad K.; Abd-Alghane, Basma Faiz

doi:10.1007/s12596-022-00983-0

Cited by 1 publication

(1 citation statement)

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“…The current investigation is conducted considering the Electron Optical Design (EOD) program, aiming to design and examine magnetic lenses by varying specific geometrical parameters. The purpose of this study is to explore the effects of these parameter variations on the performance and characteristics of the magnetic lenses used in electro-optical devices [10].…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Effectiveness of Magnetic Lenses by utilizing the Electron Optical Design (EOD) Software

Shakor Ali,

Hussein,

Al-Salih

2023

Eng. Technol. Appl. Sci. Res.

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This paper introduces a computational analysis that discusses an approach for optimal synthesis in the design of magnetic lenses, specifically focusing on the analytical method. A widely employed approach for magnetic lens design involves utilizing an analysis optimization procedure, which makes use of the finite element method and is supported by Munro programs. In this study, this approach has been employed to explore magnetic lenses using the Electron Optical Design (EOD) software. The study offers insights into the role of the air gap in magnetic lens design, highlighting its importance in optimizing objective and projector properties. The analysis reveals that variations in the air gap (S) significantly influence the performance of magnetic lenses. Decreasing the air gap when it is set to (3) leads to substantial improvements in objective optical properties and focal length. Conversely, increasing the air gap when it is set to (12) enlarges the half-width of the axial magnetic field while reducing the maximum magnetic field value. These findings underscore the importance of carefully optimizing the air gap to achieve desired lens performance. The focal length is determined using this input data and coefficients of aberration (spherical and chromatic) of the objective. The study focuses on the influence of a crucial geometric parameter, specifically the air gap (S), on both objective and projector properties. Its importance stems from its capability to pinpoint the suitable geometry for magnetic lenses, thereby facilitating their efficient application.

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Section: Introductionmentioning

confidence: 99%