欢迎访问《核聚变与等离子体物理》官方网站,今天是 分享到:

核聚变与等离子体物理 ›› 2010, Vol. 30 ›› Issue (1): 86-89.

• 等离子体应用 • 上一篇    下一篇

等离子体鞘层及粒子碰撞对微波共振探针诊断的影响

黄 勇,时家明,袁忠才,徐记伟   

  1. (电子工程学院安徽省红外与低温等离子体重点实验室,合肥 230037)
  • 收稿日期:2009-03-02 修回日期:2009-08-09 出版日期:2010-03-15 发布日期:2010-05-11
  • 作者简介:黄勇(1982-),男,江苏盐城人,博士研究生,主要从事低温等离子体技术及应用研究。

The effect of plasma sheath and collision on microwave resonator probe diagnosing

HUANG Yong, SHI Jia-ming, YUAN Zhong-cai, XU Ji-wei   

  1. (Key Lab of Infrared and Low Temperature Plasma of Anhui Province,Electronic Engineering Institute, Hefei 230037)
  • Received:2009-03-02 Revised:2009-08-09 Online:2010-03-15 Published:2010-05-11

摘要: 针对气压大于133Pa的气体放电时等离子体鞘层及粒子碰撞对微波共振探针密度测量的影响变大的问题,对微波共振探针模型进行了改进,推导了鞘层修正因子和碰撞修正因子,探讨了微波共振探针尺寸对测量等离子体密度的影响。结果表明,针丝半径选择0.2mm,并且选用较大宽度的探针有利于减小测量误差。

关键词: 微波共振探针, 等离子体密度, 鞘层, 碰撞频率, 修正因子

Abstract: The effects of plasma sheath and collisions become significant in the density measurement of gas discharges at pressures greater than 133Pa. The probe model correction is performed, and the plasma sheath and collision correction factors are deduced. The effect of probe dimentions on demsity measurement is esplosed. It reveals that choosing a proper larger probe width will be beneficial to minimizing the measure error, and the most favorable value of probe radius is 0.2mm.

Key words: Microwave resonator probe, Plasma density, Sheath, Collision frequency, Correction factor

中图分类号: