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核聚变与等离子体物理 ›› 2007, Vol. 27 ›› Issue (2): 81-86.

• 研究报告 •    下一篇

HL-2A边缘静电涨落及其输运的实验研究

程 均,严龙文,洪文玉,钱 俊   

  1. (核工业西南物理研究院,成都 610041)
  • 收稿日期:2006-06-07 修回日期:2006-10-18 出版日期:2007-06-15 发布日期:2011-08-23
  • 作者简介:程均(1980-),四川通江人,硕士研究生,从事边缘等离子体诊断与分析工作。
  • 基金资助:

    国家自然科学基金资助项目(10235010)

Experimental investigation of electrostatic fluctuation and related transport at the edge of HL-2A plasma

CHENG Jun,YAN Long-wen,HONG Wen-yu,QIAN Jun   

  1. (Southwestern Institute of Physics,Chengdu 610041)
  • Received:2006-06-07 Revised:2006-10-18 Online:2007-06-15 Published:2011-08-23

摘要:

在一次稳定放电过程中利用快速扫描气动探针系统得到电子温度、密度、等离子体电位、极向电场以及它们的涨落、粒子通量、能量通量在径向的分布。研究了HL-2A装置边缘的静电涨落及其输运。实验结果指出,在等离子体边缘涨落量不服从玻耳兹曼关系,存在由于等离子体空间电位的梯度所产生的径向电场剪切层。分析了涨落对边缘约束的影响。

关键词: HL-2A装置, 静电涨落, 通量

Abstract:

The electrostatic fluctuation and related transport at the edge of HL-2A plasma have been investigated using the parameters such as electron temperature, electron density, plasma potential, their fluctuations, particle flux and energy flux, which are simultaneously measured in a single steady shot by means of fast reciprocating probe system. Analyzed fluctuation features including the Boltzmann relationship of edge parameters, the radial electron-field shearing induced by the gradients of plasma potential, and the influence of fluctuations on edge confinement are given.

Key words: HL-2A tokamak, Electrostatic fluctuation, Flux

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