Enhancement of Wall Fueling and Improvement in n[tau] of a Beam-Heated H-Mode Discharge by Electron Cyclotron Wave in the JFT-2M Tokamak

Enhancement of Wall Fueling and Improvement in n[tau] of a Beam-Heated H-Mode Discharge by Electron Cyclotron Wave in the JFT-2M Tokamak

The additional increases both in the density n and confinement time τ of the beam heated H-mode discharges are observed (nτ value is improved by about 40%) when an electron cyclotron wave (ECW) resonating near the plasma boundary is applied. The ECW is shown to enhance wall fueling, to decrease the...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan Vol. 57; no. 3; p. 903
Main Authors: Sengoku, Seio, Funahashi, Akimasa, Hasegawa, Mitsuru, Hoshino, Katsumichi, Kasai, Satoshi, Kawakami, Tomohide, Kawashima, Hisato, Matoba, Tohru, Matsuda, Toshiaki, Matsumoto, Hiroshi, Miura, Yukitoshi, Mori, Masahiro, Odajima, Kazuo, Ogawa, Hiroaki, Ogawa, Toshihide, Ohtsuka, Hideo, Suzuki, Norio, Shoji, Teruaki, Tamai, Hiroshi, Uesugi, Yoshihiko, Yamamoto, Takumi, Yamauchi, Toshihiko
Format: Journal Article
Language:English
Published: Tokyo The Physical Society of Japan 01-03-1988
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Summary:The additional increases both in the density n and confinement time τ of the beam heated H-mode discharges are observed (nτ value is improved by about 40%) when an electron cyclotron wave (ECW) resonating near the plasma boundary is applied. The ECW is shown to enhance wall fueling, to decrease the minimum heating power for switching the H-mode on or to extend the operational regime on n-τ diagram of the H-mode discharges.
ISSN:0031-9015
1347-4073