Strong Reduction of Ion Flux to a Target Plate in a Magnetically Contracting Detached Plasma

被引：4
|
作者：
Hayashi, Yuki [1 ]
Nishikata, Hayato [1 ]
Ohno, Noriyasu [1 ]
Kajita, Shin [2 ]
机构：
[1] Nagoya Univ, Grad Sch Engn, Nagoya, Aichi 4648603, Japan
[2] Nagoya Univ, Inst Mat & Syst Sustainabil, Nagoya, Aichi 4648603, Japan
来源：
PLASMA AND FUSION RESEARCH | 2016年 / 11卷
关键词：
NAGDIS-II; detached plasma; ion flux; magnetic field configuration;
D O I：
10.1585/pfr.11.1202005
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：
Ion flux into a target plate in expanding and/or contracting magnetic field configuration has been measured under detached plasma condition in the linear plasma device NAGDIS-II. When the magnetic field was contracting towards the target plate, the strong reduction of the ion flux into the target was observed. This result indicates that the contraction in magnetic field should contribute to enhancing the degree of detachment. The magnetic-field-induced enhancement of electron density and the reduction of ion flow velocity due to the mirror effect in contracting magnetic field could lead to increasing volumetric recombination as well as the coupling between ions and electrons. (C) 2016 The Japan Society of Plasma Science and Nuclear Fusion Research.
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