鞘层电容对快速扫描双探针伏安曲线的影响

doi:10.16568/j.0254-6086.202402011

核工业西南物理研究院 ›› 2024, Vol. 44 ›› Issue (2): 198-205.DOI: 10.16568/j.0254-6086.202402011

鞘层电容对快速扫描双探针伏安曲线的影响

孙海岗^{1, 2}，靳琛垚^{*1, 2}，张炜¹，江堤¹，叶孜崇¹

(1. 中国科学院合肥物质科学研究院等离子体物理研究所，合肥 230031； 2. 中国科学技术大学科学岛分院，合肥 230026)

收稿日期:2022-11-24 修回日期:2023-11-10 出版日期:2024-06-15 发布日期:2024-06-12
通讯作者: 靳琛垚(1996-)，男，河南洛阳人，博士研究生，从事等离子体诊断和实验物理。
作者简介:孙海岗(1999-)，男，山东聊城人，硕士研究生，从事等离子体物理实验研究。
基金资助:
国家自然科学基金(11875285)；中国科学院合肥物质科学研究院院长青年基金(YZJJ2022QN19)；中国博士后科学基金(2022M713188)

Effect of sheath capacitance on the I-V characteristics of fast sweeping double Langmuir probe

SUN Hai-gang^{1, 2}, JIN Cheng-yao^{1, 2}, ZHANG Wei¹, JIANG Di¹, YIP Chi-Shung¹

(1. Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031;
2. University of Science and Technology of China, Hefei 230026)

Received:2022-11-24 Revised:2023-11-10 Online:2024-06-15 Published:2024-06-12

摘要/Abstract

摘要： 建造了基于多偶极腔体热阴极放电形式搭建的500kHz不对称快速扫描双探针系统，以电容对测量结果的影响进行实验研究。对不同扫描频率下不同尺寸的快速扫描不对称朗缪尔双探针受离子饱和电流及鞘电流影响的结果进行了对比分析。这项研究对于不同扫描频率下快速扫描不对称双探针的选择应用有着参考和指导意义。

关键词: 朗缪尔探针, 等离子体诊断, 鞘层电容

Abstract: A 500kHz asymmetric fast sweeping double probe system based on multi-dipole confined hot cathode discharge was constructed to experimentally investigate the effect of capacitance on measurement results. The results of fast sweeping asymmetric Langmuir double probe with different size effected by the ion saturation current and sheath current at different sweeping frequency are compared and analysed. This research provides a reference and guide for the selection and application of fast sweeping asymmetric double probes at different sweeping frequency.

Key words: Langmuir probe, Plasma diagnosis, Sheath capacitance

中图分类号:

TL62⁺2

孙海岗, 靳琛垚, 张炜, 江堤, 叶孜崇. 鞘层电容对快速扫描双探针伏安曲线的影响[J]. 核工业西南物理研究院, 2024, 44(2): 198-205.

SUN Hai-gang, JIN Cheng-yao, ZHANG Wei, JIANG Di, YIP Chi-Shung. Effect of sheath capacitance on the I-V characteristics of fast sweeping double Langmuir probe[J]. Nuclear Fusion and Plasma Physics, 2024, 44(2): 198-205.

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鞘层电容对快速扫描双探针伏安曲线的影响

Effect of sheath capacitance on the I-V characteristics of fast sweeping double Langmuir probe

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