Current Sustainment by Lower Hybrid Waves in the WT-2 Tokamak

Masahiko Nakamura, Teruji Cho, Shin Kubo, Takashi Shimozuma, Akira Ando, Kazuo Ogura, Takashi Maekawa, Yasushi Terumichi, Shigetoshi Tanaka

研究成果: Article査読

5 被引用数 (Scopus)

抄録

When RF power PLHH near the lower hybrid frequency is injected into the ohmically heated plasma in the WT-2 tokamak, the RF-driven current is generated (Irf~-12 kA) and the plasma (ne~-3 x 1012 cm-3)is sustained by this current without ohmic current during the injection of PLhh- The efficiency ofRF current drive is obtained as ITf=0.06PWH/ne R (kA, kW, 1013 cm-3, m),where R is the major radius. The current 7rf is carried by suprathermal electrons which interact resonantly with lower hybrid waves. A high frequency instability and associated relaxation oscillation are observed, which can be suppressed by a simultaneous injection of the electron cyclotron heating power.

本文言語English
ページ(範囲)3399-3407
ページ数9
ジャーナルjournal of the physical society of japan
53
10
DOI
出版ステータスPublished - 1984
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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