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核聚变与等离子体物理 ›› 2007, Vol. 27 ›› Issue (1): 22-27.

• 研究报告 • 上一篇    下一篇

HL-2A装置边缘等离子体参数的径向分布测量

程 均,严龙文,洪文玉,钱 俊,赵开君   

  1. (核工业西南物理研究院,成都610041)
  • 收稿日期:2006-01-18 修回日期:2006-10-25 出版日期:2007-03-15 发布日期:2011-11-28
  • 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)

Measurement of radial profiles for the edge plasma parameters in the HL-2A tokamak

CHENG Jun, YAN Long-wen, HONG Wen-yu, QIAN Jun, ZHAO Kai-jun   

  1. (Southwestern Institute of Physics, Chengdu 610041)
  • Received:2006-01-18 Revised:2006-10-25 Online:2007-03-15 Published:2011-11-28

摘要:

介绍了一种对等离子体边缘进行径向扫描的往复静电探针系统,该系统由高压气源、传输杆、光栅尺、探针组件构成。它在一次放电中能测量主等离子体边缘的温度、密度、悬浮电位、空间电位、离子饱和电流、极向电场、粒子通量等参数的径向分布以及电子温度和密度的衰减长度。测量结果表明,利用该系统测量的主等离子体边缘参数分布与JT-60U、TEXT、HT-7等装置上测量的结果一致。

关键词: 往复探针系统, 径向分布, HL-2A装置

Abstract:

Fast reciprocating probe system on the HL-2A tokamak is described in detail, which can radially scan the edge plasma within 8cm from outboard midplane. This system consists of the high pressure gas-source, transmission bar, digital grating displacement measurement system and probe head assembly. The plasma parameter profiles measured include electron temperature and density as well as their decay lengths, floating potential, space potential, saturation ion current and particle flux in a discharge with this system. These results are consistent with those from other tokamaks, such as JT-60U, TEXT, HT-7 and so on.

Key words: Reciprocating probe system, Radial profiles, HL-2A tokamak

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