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Open Access Article

Physical Sience and Technical Research. 2024; 4: (1) ; 28-33 ; DOI: 10.12208/j.pstr.20240005.

Design of wehnelt ion lens for focusing high throughput argon ion beam
用于聚焦高通量氩离子束的wehnelt离子透镜设计

作者: 陆大春, 刘红宇, 蒋衡 *

深圳扩维原子科技有限公司 广东深圳

*通讯作者: 蒋衡,单位:深圳扩维原子科技有限公司 广东深圳;

发布时间: 2024-06-28 总浏览量: 192

摘要

Wehnelt离子透镜是横向压缩离子束的主要技术手段,在获得高分辨、高质量聚焦离子束方面起着关键作用。针对高通量氩离子束的传输与聚焦过程,离子束流传输速率的提升,本文设计了一种用于聚焦高通量氩离子束流的wehnelt离子透镜,并采用SIMION仿真模拟软件对离子的命中区域进行了研究。研究结果表明,通过合理布局透镜结构与电压配置,能够使得72%(2 keV)或65%(5 keV)的离子聚焦在10mm×10 mm的矩形区域,并且99%以上的离子能够聚焦在20 mm×20 mm的矩形区域。

关键词: Wehnelt离子透镜;离子束;SIMION;聚焦

Abstract

Wehnelt ion lenses are commonly used techniques for transversely compressing ion beams, playing a crucial role in achieving high-resolution and high-quality focused ion beams. For the enhancement of ion beam current transmission rate in the transport and focusing process of high-throughput argon ion beams, this study designs a wehnelt ion lens specifically for focusing high-throughput argon ion beams. The ion impact area was investigated using SIMION simulation software. By optimizing the lens structure layout and voltage configuration, it was found that 72% (2 keV) or 65% (5 keV) of ions can be focused within a 10 mm × 10 mm rectangular area, and over 99% of ions can be focused within a 20 mm × 20 mm rectangular area.

Key words: Wehnelt Ion lens; Ion beam; SIMION; Focusing

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引用本文

陆大春, 刘红宇, 蒋衡, 用于聚焦高通量氩离子束的wehnelt离子透镜设计[J]. 物理科学与技术研究, 2024; 4: (1) : 28-33.