Mode Structure Analysis of Detached Plasmas with 2D Images

被引：3

作者：

Kajita, Shin ^{[1
]}

Tanaka, Hirohiko ^{[2
]}

Ohno, Noriyasu ^{[2
]}

Onda, Takuya ^{[2
]}

机构：

[1] Nagoya Univ, Inst Mat & Syst Sustainabil, Nagoya, Aichi 4648603, Japan

[2] Nagoya Univ, Grad Sch Engn, Nagoya, Aichi 4648603, Japan

来源：

PLASMA AND FUSION RESEARCH | 2018年 / 13卷

基金：

日本学术振兴会;

关键词：

detached plasma; plasma blob; mode analysis; plasma instability;

D O I：

10.1585/pfr.13.1402033

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

In linear plasma devices, blob-like cross-field transport is enhanced especially in detached plasmas. Formation of blob-like plasmas in the linear plasma device NAGDIS-II was observed using a fast framing camera, and the mode analysis was conducted using the emission from the plasma column. From the Fourier analysis, it was seen that plasma instability was enhanced before the ejection of blob-like plasmas from the plasma column. It was found that blob-like plasmas are generated at the peripheral region of the plasma column associated with low mode number (m = 0-2) plasma instability inside the plasma column. (C) 2018 The Japan Society of Plasma Science and Nuclear Fusion Research.

引用

页数：5

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