Toroidal Current Drive by Lower Hybrid Wave in WT-2 Tokamak

Autor:	Hideki Kawai, K. Yamazaki, Takashi Shimozuma, Shigetoshi Tanaka, Y. Hamada, Yasushi Terumichi, Masahiko Nakamura, Takashi Maekawa, S. Kubo, T. Cho
Rok vydání:	1982
Předmět:	Physics Toroid Tokamak law Oscillation RF power amplifier Cyclotron Voltage spike General Physics and Astronomy Plasma Atomic physics Lower hybrid oscillation law.invention
Zdroj:	Journal of the Physical Society of Japan. 51:3696-3704
ISSN:	1347-4073 0031-9015
DOI:	10.1143/jpsj.51.3696
Popis:	When RF power P rf near the lower hybrid frequency is injected to a low density plasma in WT-2 tokamak, the loop voltage decreases and falls to a negative value, implying that an RF-driven current I rf is produced. The efficient RF-current generation is obtained as I rf / P rf ≈0.6 kA/kW. The associated relaxation oscillation, where voltage spikes, step-like increases in electron cyclotron emission and X-ray bursts appear, and the correlated ion cyclotron instabilities are observed. These phenomena support the production of I rf in the toroidal plasma.
Databáze:	OpenAIRE
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