Tokamak and spherical tokamak research in Japan

Y. Takase, M. Kikuchi, T. Maekawa, M. Matsukawa, M. Nagata, S. Nishio, Y. Ono, K. N. Sato, K. Tobita

Research output: Contribution to journalArticlepeer-review


Japanese tokamak and spherical tokamak (ST) research programs are described. Tokamak research will focus on steady state high β(β N = 3.5-5.5) research on JT-60SA (formerly NCT) in support of ITER and DEMO. JT-60SA will also serve as the Satellite Tokamak under the JA-EU Broader Approach framework. ST research has been reorganized as the All-Japan ST Research Program, aiming for creative and innovative research focused on ultra-high β and ultra-long pulse regimes. Results of plasma start-up, RF heating, and plasma merging/ reconnection experiments are summarized. Prospects of contribution of low aspect ratio tokamaks to fusion energy development, are presented.

Original languageEnglish
Pages (from-to)46-51
Number of pages6
JournalFusion Science and Technology
Issue number2 T.
Publication statusPublished - 2007 Feb
Externally publishedYes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering


Dive into the research topics of 'Tokamak and spherical tokamak research in Japan'. Together they form a unique fingerprint.

Cite this