大面积分散电弧等离子体的ICCD图像分析

核聚变与等离子体物理 ›› 2008, Vol. 28 ›› Issue (3): 265-269.

大面积分散电弧等离子体的ICCD图像分析

周鹤凌，夏维东，黎林村，周志鹏，白冰，程亮

(中国科学技术大学热科学与能源工程系，合肥 230027)

收稿日期:2007-08-27 修回日期:2008-04-20 出版日期:2008-09-15 发布日期:2011-03-03
作者简介:周鹤凌(1982-)，男，汉，安徽芜湖市人，硕士研究生，从事低温等离子体应用研究。
基金资助:
国家自然科学基金资助项目(10375065；10675122)

ICCD image analysis of a novel large area dispersed arc plasma source

ZHOU He-ling, XIA Wei-dong, LI Lin-cun, ZHOU Zhi-peng, BAI Bing, CHENG Liang

(Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027)

Received:2007-08-27 Revised:2008-04-20 Online:2008-09-15 Published:2011-03-03

摘要/Abstract

摘要：

用增强型电荷耦合检测器(ICCD)和窄带干涉滤光片相结合的方法拍摄了未饱和氩等离子体的分散电弧的非饱和图像。对不同励磁电流下电弧形态的分析比较，证实了在强电磁力的作用下弧柱趋于扩散。在电弧完全分散条件下，对ICCD拍摄非饱和图像的光强分析，表明分散电弧具有较为均匀的分布。所采集的电弧电压的脉动幅度显著降低，分散电弧稳定运行。实验中观测到了稳定的多阴极弧根和弥散阴极弧根的现象，这表明电弧已扩散。

关键词: 大面积电弧等离子体, ICCD, 非饱和图像, 分散电弧, 阴极弧根, 光强分析

Abstract:

Unsaturated images of large area dispersed argon plasma are captured by an intensified charge-coupled device (ICCD) equipped with a narrow-band interference filter. The experimental results show that the strong electromagnetic force disperses the arc until the plasma cloud fills the axial cross-section of the chamber as the injected current increases, the plasma is uniformly-distributed when the arc is fully dispersed, the arc moves more steadily and smoothly with the significantly-reduced voltage fluctuation, and the phenomena of multi cathode roots and diffused cathode roots generally correspond to a dispersed arc.

Key words: Large area dispersed argon plasma, ICCD, Unsaturated image, Diffused roots, Multi cathode roots, Intensity analysis

中图分类号:

O539

周鹤凌，夏维东，黎林村，周志鹏，白冰，程亮. 大面积分散电弧等离子体的ICCD图像分析[J]. 核聚变与等离子体物理, 2008, 28(3): 265-269.

ZHOU He-ling, XIA Wei-dong, LI Lin-cun, ZHOU Zhi-peng, BAI Bing, CHENG Liang. ICCD image analysis of a novel large area dispersed arc plasma source[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2008, 28(3): 265-269.

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