Plasma Current Start-up by ECW and Vertical Field in the TST-2 Spherical Tokamak

Osamu MITARAI; Yuichi TAKASE; Akira EJIRI; Syunichi SHIRAIWA; Hiroshi KASAHARA; Takuma YAMADA; Shinya OHARA; TST-2 Team; Kazuo NAKAMURA; Atsuhiro IYOMASA; Makoto HASEGAWA; Hiroshi IDEI; Mizuki SAKAMOTO; Kazuaki HANADA; Kohnosuke SATOH; Hideki ZUSHI; TRIAM Group; Nobuhiro NISHINO

doi:10.1585/jspf.80.549

Rapid Communications

Plasma Current Start-up by ECW and Vertical Field in the TST-2 Spherical Tokamak

Osamu MITARAI, Yuichi TAKASE, Akira EJIRI, Syunichi SHIRAIWA, Hiroshi KASAHARA, Takuma YAMADA, Shinya OHARA, TST-2 Team, Kazuo NAKAMURA, Atsuhiro IYOMASA, Makoto HASEGAWA, Hiroshi IDEI, Mizuki SAKAMOTO, Kazuaki HANADA, Kohnosuke SATOH, Hideki ZUSHI, TRIAM Group, Nobuhiro NISHINO

Author information

Osamu MITARAI
Institute of Industrial Science and Technical Research, Kyushu Tokai University
Yuichi TAKASE
Grad. School of Frontier Sciences and Grad. School of Science, Univ. Tokyo
Akira EJIRI
Grad. School of Frontier Sciences and Grad. School of Science, Univ. Tokyo
Syunichi SHIRAIWA
Grad. School of Frontier Sciences and Grad. School of Science, Univ. Tokyo
Hiroshi KASAHARA
Grad. School of Frontier Sciences and Grad. School of Science, Univ. Tokyo
Takuma YAMADA
Grad. School of Frontier Sciences and Grad. School of Science, Univ. Tokyo
Shinya OHARA
Grad. School of Frontier Sciences and Grad. School of Science, Univ. Tokyo
TST-2 Team
Grad. School of Frontier Sciences and Grad. School of Science, Univ. Tokyo
Kazuo NAKAMURA
Research Institute for Applied Mechanics, Kyushu University
Atsuhiro IYOMASA
Research Institute for Applied Mechanics, Kyushu University
Makoto HASEGAWA
Research Institute for Applied Mechanics, Kyushu University
Hiroshi IDEI
Research Institute for Applied Mechanics, Kyushu University
Mizuki SAKAMOTO
Research Institute for Applied Mechanics, Kyushu University
Kazuaki HANADA
Research Institute for Applied Mechanics, Kyushu University
Kohnosuke SATOH
Research Institute for Applied Mechanics, Kyushu University
Hideki ZUSHI
Research Institute for Applied Mechanics, Kyushu University
TRIAM Group
Research Institute for Applied Mechanics, Kyushu University
Nobuhiro NISHINO
Department of Engineering, Hiroshima Univ.

Keywords: spherical tokamak, current start-up, central solenoid, ECW, vertical field

JOURNAL FREE ACCESS

2004 Volume 80 Issue 7 Pages 549-550

DOI https://doi.org/10.1585/jspf.80.549

Details

Abstract

Plasma current start-up and ramp-up to 10 kA have been demonstrated in the TST-2 spherical tokamak without the use of the central solenoid. Only the electron cyclotron wave (ECW) and the outer equilibrium field coils are used. The plasma current evolution depends on the poloidal coil arrangement. It is also demonstrated that the plasma current start-up can take place without the field null.

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