RT-1 project: Magnetosphere-like plasma experiment

Z. Yoshida, Y. Ogawa, J. Morikawa, M. Furukawa, H. Saitoh, M. Hirota, D. Hori, J. Shiraishi, S. Watanabe, S. Numazawa, Y. Yano, J. Suzuki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The Ring Trap-1 (RT-1) is a novel plasma device designed to explore various effects of plasma flow in the most universal and fundamental magnetosphere-like configuration. A super-conducting ring magnet, levitated in the vacuum chamber, produces a dipole magnetic field that traps high-temperature plasma. Plasma is produced by electron cyclotron heating using an 8.2GHz microwave. The mechanism of plasma confinement is based on the theory of high-beta equilibrium that is self-organized in a flowing plasma. Realization of such a configuration in a laboratory system, which is known to exist in some astronomical systems, may open a way to the advanced-fuel fusion. Analyses of the equilibrium and stability pose interesting theoretical and experimental challenges.

Original languageEnglish
Pages (from-to)29-33
Number of pages5
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


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