Current Sheet Dynamics of High Guide-Field Magnetic Reconnection

被引：0

作者：

DOKE, Yuka ^{[1
]}

ONO, Yasushi ^{[1
,2
]}

机构：

[1] Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo

[2] Department of Advanced Energy, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Chiba, Kashiwa

来源：

Plasma and Fusion Research | 2024年 / 19卷

关键词：

anomalous resistivity; current sheet; fast reconnection; magnetic reconnection; plasma pile-up;

D O I：

10.1585/PFR.19.1201032

中图分类号：

学科分类号：

摘要：

We measured detailed current sheet dynamics of two merging high-guide field flux tubes using newly developed high-resolution magnetic field measurement by Printed-Circuit-Board (PCB) coils in TS-6 merging tokamak experiment. We found that the sheet ejection occurred twice, increasing their merging ratio, the toroidal current density Jt, the toroidal electric field Et, and the effective resistivity η of current sheet. The possible explanation for this result is that the mass ejection from the current sheet drives the reconnection inflow, due to the mass conservation law. Especially, after the second sheet ejection, the effective resistivity increased significantly, probably because the sheet thickness compressed up to the ion Larmor radius. © 2024 The Japan Society of Plasma Science and Nuclear Fusion Research

引用

页码：1 / 2

页数：1

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