前真空等离子阴极电子源用于在广泛的压力范围内产生带束
A S Klimov1, I Yu Bakeev1, Yu A Burachevsky1
1Laboratory of Plasma Electronics, Tomsk State University of Control Systems and Radioelectronics, 634050 Tomsk, Russia.
The Review of scientific instruments
|July 26, 2023
概括
研究人员开发了一种两级空心阴极放电系统,以产生带电子束. 该系统实现了远光电流和均密度,这对于先进的应用至关重要.
科学领域:
- 等离子体物理学的物理学
- 梁的生成 梁的生成
背景情况:
- 电子束生成对于各种科学和工业应用至关重要.
- 控制电流密度和均性等光束属性是一个持续的挑战.
研究的目的:
- 为了研究使用两级空心阴极光放电等离子系统生成带电子束.
- 为了优化系统在特定压力范围内运行,并实现统一的电流密度.
主要方法:
- 使用了两级空心阴极发光放电等离子系统.
- 采用专门设计的排放电极,以确保统一的电流密度分布.
- 在2 × 10−2到10Pa的压力范围内运行系统,加速度电压为8kV.
主要成果:
- 成功生成了一条带电子束 (10 × 220 mm2).
- 在2 × 10−2 Pa时达到450 mA的光束电流,在10 Pa时达到150 mA.
- 使用专用电极设计,将光束电流密度分布的不均性减少到10%.
结论:
- 两个阶段的空心电极放电系统有效地产生带电子束.
- 专门的排放电极设计显著改善了电流密度的统一性.
- 该系统在各种工作压力范围内展示了可调节的性能.
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