Electron cyclotron heating combined with lower hybrid current drive on WT-3

K. Hanada, T. Maehara, S. Yoshimura, S. Tabuchi, K. Nakamura, M. Nakamura, T. Maekawa, Y. Terumichi

Research output: Contribution to journalArticlepeer-review


Lower hybrid current drive (LHCD) is applied to improve the confinement in the WT-3 tokamak. With increasing the lower hybrid (LH) power, a sharp decrease in electron thermal diffusivity χe is observed at a certain LF power. The χe is directly measured by applying the simple time-to-peak method to propagation of a heat pulse induced by a short electron cyclotron heating (ECH) pulse. A high electron temperature is obtained by applying ECH to the LHCD plasma with improved χe. The efficiency of ECH in the LHCD plasma with improved χe becomes three times that in ohmic heating plasmas.

Original languageEnglish
Pages (from-to)69-75
Number of pages7
JournalFusion Engineering and Design
Issue number1-4
Publication statusPublished - Jan 1 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • General Materials Science
  • Mechanical Engineering


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