Transient snakes in an ohmic plasma associated with a minor disruption in the HT-7 tokamak

被引：0
|
作者：
Mao, Songtao [1 ]
Xu, Liqing [1 ]
Hu, Liqun [1 ]
Chen, Kaiyun [1 ]
机构：
[1] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2014年 / 64卷 / 09期
关键词：
Snake; HT7; Tokamak; Frequency chirping; Ohmic plasma; PELLET INJECTION;
D O I：
10.3938/jkps.64.1244
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A transient burst (ms, an order of the fast-particle slowdown timescale) of a spontaneous snake is observed for the first time in a HT-7 heavy impurity ohmic plasma. The features of the low-Z impurity snake are presented. The flatten electron profile due to the heavy impurity reveals the formation of a large magnetic island. The foot of the impurity accumulation is consistent with the location of the transient snake. The strong frequency-chirping behaviors and the spatial structures of the snake are also presented.
引用
收藏
页码：1244 / 1247
页数：4
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