Measurement of Ion Temperature and Flow in RF Start-Up Plasmas in TST-2 and LATE

被引：0

作者：

Tsuda, Shintaro ^{[1
]}

EJIRI, Akira ^{[1
]}

Tanaka, Hitoshi ^{[2
]}

Takase, Yuichi ^{[1
]}

Maekawa, Takashi ^{[2
]}

Tsujii, Naoto ^{[1
]}

Takeuchi, Toshihiro ^{[1
]}

机构：

[1] Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa

[2] Graduate School of Energy Science, Kyoto University, Kyoto

来源：

Plasma and Fusion Research | 2015年 / 10卷

关键词：

electron cyclotron resonance wave; flow; ion temperature; LATE; lower hybrid wave; rotation; spectrometer; spherical tokamak; TST-2;

D O I：

10.1585/pfr.10.1202064

中图分类号：

学科分类号：

摘要：

The ion temperature and flow of RF start-up plasmas in TST-2 and LATE were measured using a visible spectrometer. The plasma currents were 9 kA and 8 kA, respectively. The typical ion temperatures Ti and toroidal flow Vφ were 4 eV and 1 km/s, respectively, in the TST-2 plasma sustained by the lower hybrid wave (20 kW) and Ti ∼10 eV and Vφ ∼5 km/s in the LATE plasma sustained by the electron cyclotron wave (50 kW). The poloidal flow velocities were comparable to the toroidal velocities. The ion temperatures were relatively high and the ion orbit loss can be significant. © 2015 The Japan Society of Plasma Science and Nuclear Fusion Research

引用

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