Simulation study on the effects of magnetic field configuration on water-based microwave discharge ion thruster

IF 3.9 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Vacuum Pub Date : 2025-08-20 DOI:10.1016/j.vacuum.2025.114686

Jiahui Bi, Siyuan Zhang, Zufu Ma, Yuliang Fu, Anbang Sun

引用次数: 0

Abstract

To investigate the effects of magnetic field configuration on the performance of a miniature water-based microwave discharge ion thruster, a 2D3V integrative Particle-in-Cell/Monte Carlo Collision (PIC/MCC) simulation model was developed to analyse the discharge mechanisms and beam extraction processes of the thruster. The results reveal that all kinds of ions are highly magnetized, the magnetization ratio of H⁺ even exceeds 90 %. The magnetization of ions contributes to increase plasma density, change the ion transport mechanisms, and improve beam extraction performance, which agrees with experiment phenomenon. Additionally, the electron temperature distribution varies in different magnetic field configurations, which results in different ion proportions. This demonstrates that a suitable magnetic field configuration can improve ion thruster performance and regulate plasma composition by affecting the ion magnetization ratio and electron energy distributions.

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磁场构型对水基微波放电离子推力器影响的仿真研究

为了研究磁场构型对微型水基微波放电离子推力器性能的影响，建立了2D3V粒子池/蒙特卡罗碰撞（PIC/MCC）综合仿真模型，分析了该推力器的放电机理和光束提取过程。结果表明，各种离子都被高度磁化，H+的磁化率甚至超过90%。离子的磁化作用增加了等离子体密度，改变了离子输运机制，提高了束流提取性能，这与实验现象一致。此外，在不同的磁场构型下，电子温度分布也不同，导致离子比例不同。这表明，适当的磁场配置可以通过影响离子磁化比和电子能量分布来提高离子推力器的性能，调节等离子体成分。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Vacuum 工程技术-材料科学：综合

CiteScore

6.80

自引率

17.50%

发文量

审稿时长

34 days

期刊介绍： Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below. The scope of the journal includes: 1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes). 2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis. 3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification. 4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.