Toroidal plasma current startup and sustainment by rf in the WT-2 tokamak

S. Kubo, M. Nakamura, T. Cho, S. Nakao, T. Shimozuma, A. Ando, K. Ogura, T. Maekawa, Y. Terumichi, S. Tanaka

Research output: Contribution to journalArticlepeer-review

85 Citations (Scopus)


By injecting the lower hybrid wave into the microwave discharge plasma at the electron-cyclotron resonance in the WT-2 toroidal device, the toroidal plasma current is generated, started up to Ip5 kA, and sustained by rf power alone, without the Ohmic heating power (rf tokamak). This lower-hybrid-wave- driven current is produced only when high-energy tail electrons, which interact resonantly with the lower hybrid wave, are present in the initial electron-cyclotron resonance plasma.

Original languageEnglish
Pages (from-to)1994-1997
Number of pages4
JournalPhysical review letters
Issue number25
Publication statusPublished - 1983
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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