Radiofrequency experiments in JFT-2M: Demonstration of innovative applications of a travelling wave antenna

T. Ogawa, K. Hoshino, S. Kanazawa, M. Saigusa, T. Ido, H. Kawashima, N. Kasuya, Y. Takase, H. Kimura, Y. Miura, K. Takahashi, C. P. Moeller, R. I. Pinsker, C. C. Petty, D. A. Phelps

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Several innovative applications of a travelling wave (combline) antenna designed for fast wave current drive have been demonstrated for the first time in the JFT-2M tokamak. High energy electrons of at least 10 keV were produced in the plasma core by highly directional fast waves in electron cyclotron heated plasmas. The ponderomotive potential of the beat wave, produced by fast waves at two different frequencies, was directly measured for the first time by a heavy ion beam probe. Plasma production was demonstrated using the wave fields excited by the combline antenna over a wide range of toroidal magnetic fields (0.5-2.2 T).

Original languageEnglish
Pages (from-to)1767-1775
Number of pages9
JournalNuclear Fusion
Volume41
Issue number12
DOIs
Publication statusPublished - Dec 1 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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    Ogawa, T., Hoshino, K., Kanazawa, S., Saigusa, M., Ido, T., Kawashima, H., Kasuya, N., Takase, Y., Kimura, H., Miura, Y., Takahashi, K., Moeller, C. P., Pinsker, R. I., Petty, C. C., & Phelps, D. A. (2001). Radiofrequency experiments in JFT-2M: Demonstration of innovative applications of a travelling wave antenna. Nuclear Fusion, 41(12), 1767-1775. https://doi.org/10.1088/0029-5515/41/12/304