Studies of internal magnetic fluctuation in the HL-1M tokamak

核聚变与等离子体物理 ›› 2005, Vol. 25 ›› Issue (1): 42-48.

Studies of internal magnetic fluctuation in the HL-1M tokamak

ZHENG Yong-zhen, DING Xuan-tong, LI Wen-zhong

(Southwestern Institute of Physics, Chengdu 610041)

收稿日期:2004-02-26 修回日期:2004-08-13 出版日期:2005-03-15 发布日期:2024-09-06

Studies of internal magnetic fluctuation in the HL-1M tokamak

ZHENG Yong-zhen, DING Xuan-tong, LI Wen-zhong

(Southwestern Institute of Physics, Chengdu 610041)

Received:2004-02-26 Revised:2004-08-13 Online:2005-03-15 Published:2024-09-06
About author:ZHENG Yong-zhen (1942-),male,born in Shanghai.Reserach fellow.Engaged in nuclear fusion and plasma physics,especially experiments of fusion device control and plasma diagnosis.

摘要/Abstract

摘要：

The transport of runaway electrons in a hot plasma can be comparatively easily measured in

steady state or perturbation experiments, which provide run away electron diffusivity Dr. The

diffusivity can be interpreted in terms of the magnetic fluctuation level. The runaway electron

diffusion coefficient is determined by internal magnetic fluctuations. The internal magnetic

fluctuations level (b_r/B_T) is estimated to be about (2~4)×10^-4 in the HL-1M plasma. The results

demonstrate the effectiveness of using runaway transport techniques for determining internal

magnetic fluctuations. A profile of the magnetic fluctuation level in the HL- 1M tokamak can be

estimated from D_r.

关键词: Transport of runaway electron, Diffusivity, Intrinsic magnetic fluctuations

Abstract:

The transport of runaway electrons in a hot plasma can be comparatively easily measured in

steady state or perturbation experiments, which provide run away electron diffusivity Dr. The

diffusivity can be interpreted in terms of the magnetic fluctuation level. The runaway electron

diffusion coefficient is determined by internal magnetic fluctuations. The internal magnetic

fluctuations level (b_r/B_T) is estimated to be about (2~4)×10^-4 in the HL-1M plasma. The results

demonstrate the effectiveness of using runaway transport techniques for determining internal

magnetic fluctuations. A profile of the magnetic fluctuation level in the HL- 1M tokamak can be

estimated from D_r.

Key words: Transport of runaway electron, Diffusivity, Intrinsic magnetic fluctuations

中图分类号:

O532+.11

ZHENG Yong-zhen, DING Xuan-tong, LI Wen-zhong. Studies of internal magnetic fluctuation in the HL-1M tokamak[J]. 核聚变与等离子体物理, 2005, 25(1): 42-48.

ZHENG Yong-zhen, DING Xuan-tong, LI Wen-zhong. Studies of internal magnetic fluctuation in the HL-1M tokamak[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2005, 25(1): 42-48.

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Studies of internal magnetic fluctuation in the HL-1M tokamak

Studies of internal magnetic fluctuation in the HL-1M tokamak

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