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核聚变与等离子体物理 ›› 2005, Vol. 25 ›› Issue (2): 157-160.

• 等离子体物理学 • 上一篇    

HL-2A等离子体边缘的快速单探针测量

洪文玉,潘宇东,王恩耀,严龙文,钱 俊   

  1. (核工业西南物理研究院,成都610041 )
  • 发布日期:2005-06-15

Measuring the HL-2A edge plasma with a fas-t speed single probe

HONG Wen-yu, PAN Yu-dong, WANG En-yao, YAN Long-wen, QIAN Jun   

  1. (Southwestern Institute of Physics, Chengdu 610041)
  • Published:2005-06-15

摘要: 介绍了对HL-2A装置中平面边缘等离子体的单探针测量。单探针是安装在可径向移动、并可绕轴旋 转360o的传动杆上的。在1MHz的快速采样频率下,测量了主等离子体边缘的温度、密度、悬浮电位、空间电位、极 向等离子体流速的径向分布。测量的结果表明,利用单探针测量的主等离子体边缘参数与朗缪尔四探针测量结果 基本一致。

关键词: HL-2A装置, 单探针, 快速采样模块

Abstract: Measurments of the HL-2A edge plasma near the mid-plane with a fas-t speed single probe are presented in the paper. The Langmuir probe is mounted on a long shaft, which can be shifted radially and rotated circularly. The radial profiles ofthe plasma edge electron temperature, density, floating potential, spacing potential and poloidal flowve- locities have been measured utilizing a 1MHz fas-t sampling module. The results obtained showthat radial profiles of the temperature and the density measured with the single probe are in agreement to those with a four-probe system.

Key words: HL-2A tokamak, Single Langmuir probe, Fas-t sampling module

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