Direct measurement of density oscillation induced by a radio-frequency wave

T. Yamada, A. Ejiri, Y. Shimada, T. Oosako, J. Tsujimura, Y. Takase, H. Kasahara

研究成果: ジャーナルへの寄稿学術誌査読

10 被引用数 (Scopus)

抄録

An O-mode reflectometer at a frequency of 25.85 GHz was applied to plasmas heated by the high harmonic fast wave (21 MHz) in the TST-2 spherical tokamak. An oscillation in the phase of the reflected microwave in the rf range was observed directly for the first time. In TST-2, the rf (250 kW) induced density oscillation depends mainly on the poloidal rf electric field, which is estimated to be about 0.2 kVm rms by the reflectometer measurement. Sideband peaks separated in frequency by ion cyclotron harmonics from 21 MHz, and peaks at ion cyclotron harmonics which are suggested to be quasimodes generated by parametric decay, were detected.

本文言語英語
論文番号083502
ジャーナルReview of Scientific Instruments
78
8
DOI
出版ステータス出版済み - 2007

!!!All Science Journal Classification (ASJC) codes

  • 器械工学

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