The observation of dust behavior in TRIAM-1M

K. Sasaki, K. Hanada, N. Nishino, M. Tokitani, N. Yoshida, K. N. Sato, H. Zushi, K. Nakamura, M. Sakamoto, H. Idei, M. Hasegawa, S. Kawasaki, H. Nakasihma, A. Higashijima

研究成果: ジャーナルへの寄稿学術誌査読

9 被引用数 (Scopus)

抄録

The observation of dusts in plasmas was carried out by high speed camera in full non-inductive lower hybrid current drive (LHCD) plasma on TRIAM-1M. The velocities of dusts were 10-50 m/s. The number of dust generated per second increased with the discharge duration in the range of 20-57 s. This suggests that a part of dusts were generated from a movable limiter whose the surface temperature increases with the discharge duration. Dusts were coming from various directions even close to the movable limiter. Dusts were collected in the vacuum vessel by use of a kind of cleaner and the composition and the size of dust were examined by Scanning Electron Microscope (SEM). Dust size was several μm and composition was Molybdenum mixed with small amount of elements of stainless metal. The poloidal distribution of the collected mass of dusts was almost uniform.

本文言語英語
ページ(範囲)238-241
ページ数4
ジャーナルJournal of Nuclear Materials
363-365
1-3
DOI
出版ステータス出版済み - 6月 15 2007

!!!All Science Journal Classification (ASJC) codes

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

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