Electron density measurements of non-inductive start-up plasmas in the TST-2 spherical tokamak

被引：0
|
作者：
Kurashina H. [1 ]
Ejiri A. [1 ]
Takase Y. [1 ]
Hanashima K. [1 ]
Sakamoto T. [1 ]
Watanabe O. [1 ]
Nagashima Y. [1 ]
Yamaguchi T. [1 ]
An B.I. [1 ]
Kobayashi H. [1 ]
Hayashi H. [1 ]
Yamada K. [1 ]
Matsuzawa H. [1 ]
Kakuda H. [1 ]
Hiratsuka J. [1 ]
Wakatsuki T. [1 ]
Oosako T. [1 ]
机构：
[1] The University of Tokyo, Kashiwa
来源：
Plasma and Fusion Research | 2010年 / 5卷
基金：
日本学术振兴会;
关键词：
Electron cyclotron heating; Electron density; Microwave interferometer; Plasma start-up; Spherical tokamak;
D O I：
10.1585/pfr.5.024
中图分类号：
学科分类号：
摘要：
A new 50 GHz microwave interferometer was installed, and non-inductively sustained spherical tokamak plasmas in the TST-2 device were measured. The line integrated electron densities (nels) on five chords were compared with visible CCD camera image and equilibrium analysis. It is concluded that the high-density region has a C-like shape along the outboard boundary. This shape suggests that the electron density is not constant on the magnetic flux surface. © 2010 The Japan Society of Plasma Science and Nuclear Fusion Research.
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