Overview of spherical tokamak research in Japan

Y. Takase, A. Ejiri, T. Fujita, N. Fukumoto, A. Fukuyama, K. Hanada, H. Idei, M. Nagata, Y. Ono, H. Tanaka, M. Uchida, R. Horiuchi, Y. Kamada, H. Kasahara, S. Masuzaki, Y. Nagayama, T. Oishi, K. Saito, Y. Takeiri, S. Tsuji-Iio

Research output: Contribution to journalReview article

2 Citations (Scopus)

Abstract

Nationally coordinated research on spherical tokamak is being conducted in Japan. Recent achievements include: (i) plasma current start-up and ramp-up without the use of the central solenoid by RF waves (in electron cyclotron and lower hybrid frequency ranges), (ii) plasma current start-up by AC Ohmic operation and by coaxial helicity injection, (iii) development of an advanced fuelling technique by compact toroid injection, (iv) ultra-long-pulse operation and particle control using a high temperature metal wall, (v) access to the ultra-high-β regime by high-power reconnection heating, and (vi) improvement of spherical tokamak plasma stability by externally applied helical field.

Original languageEnglish
Article number102005
JournalNuclear Fusion
Volume57
Issue number10
DOIs
Publication statusPublished - Jun 20 2017

Fingerprint

plasma currents
Japan
injection
toroids
refueling
magnetohydrodynamic stability
solenoids
ramps
cyclotrons
alternating current
frequency ranges
heating
pulses
metals
electrons

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Takase, Y., Ejiri, A., Fujita, T., Fukumoto, N., Fukuyama, A., Hanada, K., ... Tsuji-Iio, S. (2017). Overview of spherical tokamak research in Japan. Nuclear Fusion, 57(10), [102005]. https://doi.org/10.1088/1741-4326/aa62c1

Overview of spherical tokamak research in Japan. / Takase, Y.; Ejiri, A.; Fujita, T.; Fukumoto, N.; Fukuyama, A.; Hanada, K.; Idei, H.; Nagata, M.; Ono, Y.; Tanaka, H.; Uchida, M.; Horiuchi, R.; Kamada, Y.; Kasahara, H.; Masuzaki, S.; Nagayama, Y.; Oishi, T.; Saito, K.; Takeiri, Y.; Tsuji-Iio, S.

In: Nuclear Fusion, Vol. 57, No. 10, 102005, 20.06.2017.

Research output: Contribution to journalReview article

Takase, Y, Ejiri, A, Fujita, T, Fukumoto, N, Fukuyama, A, Hanada, K, Idei, H, Nagata, M, Ono, Y, Tanaka, H, Uchida, M, Horiuchi, R, Kamada, Y, Kasahara, H, Masuzaki, S, Nagayama, Y, Oishi, T, Saito, K, Takeiri, Y & Tsuji-Iio, S 2017, 'Overview of spherical tokamak research in Japan', Nuclear Fusion, vol. 57, no. 10, 102005. https://doi.org/10.1088/1741-4326/aa62c1
Takase Y, Ejiri A, Fujita T, Fukumoto N, Fukuyama A, Hanada K et al. Overview of spherical tokamak research in Japan. Nuclear Fusion. 2017 Jun 20;57(10). 102005. https://doi.org/10.1088/1741-4326/aa62c1
Takase, Y. ; Ejiri, A. ; Fujita, T. ; Fukumoto, N. ; Fukuyama, A. ; Hanada, K. ; Idei, H. ; Nagata, M. ; Ono, Y. ; Tanaka, H. ; Uchida, M. ; Horiuchi, R. ; Kamada, Y. ; Kasahara, H. ; Masuzaki, S. ; Nagayama, Y. ; Oishi, T. ; Saito, K. ; Takeiri, Y. ; Tsuji-Iio, S. / Overview of spherical tokamak research in Japan. In: Nuclear Fusion. 2017 ; Vol. 57, No. 10.
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