Ion temperature measurements in Tohoku university Heliac for analysis of the improved mode transition

M. Ogawa, H. Ogawa, H. Takahashi, Y. Tanaka, H. Utoh, J. Shinde, K. Iwazaki, H. Aoyama, H. Umetsu, Atsushi Okamoto, K. Shinto, S. Kitajima, M. Yokoyama, S. Inagaki, Y. Suzuki, K. Nishimura, M. Sasao

研究成果: Article査読

1 被引用数 (Scopus)

抄録

In the Tohoku University Heliac, transition to the improved mode has been observed when the plasma in biased with a hot cathode inserted into the plasma. Ion temperature measurement using high-resolution spectroscopy demonstrated that when the plasma was biased and transited to the improved mode, the ion temperature increased or was kept almost constant, and the ion density also increased. The total stored energy (the products of temperature and density, neTa, niTi) increased in the improved mode. In neoclassical theory, nonlinearity in ion viscosity plays a key role in the transition. The ion viscosity estimated from the measured ion temperature was consistent with the predictions of the neoclassical theory.

本文言語English
ページ(範囲)268-270
ページ数3
ジャーナルFusion Science and Technology
51
2 T.
DOI
出版ステータスPublished - 2007 2

ASJC Scopus subject areas

  • 土木構造工学
  • 核物理学および高エネルギー物理学
  • 原子力エネルギーおよび原子力工学
  • 材料科学(全般)
  • 機械工学

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