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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