Observations of abrupt changes in the fluctuation spectrum on LMD-U

H. Arakawa, K. Kamataki, S. Inagaki, T. Maruta, Y. Nagashima, T. Yamada, S. Shinohara, K. Terasaka, S. Sugita, M. Yagi, N. Kasuya, A. Fujisawa, S. I. Itoh, K. Itoh

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11 Citations (Scopus)

Abstract

A transition of the fluctuation spectrum of ion saturation current is observed in linear magnetized plasmas. A power spectrum with regular peaks and a broadband spectrum appear alternately during a discharge. The temporal order of changes in the modes is investigated at the transition. The low poloidal mode number components change before the higher modes begin to change. The delay times of change between modes are determined.

Original languageEnglish
Article number085001
JournalPlasma Physics and Controlled Fusion
Volume51
Issue number8
DOIs
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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