Observation of type-1 intermittency caused by current-driven ion acoustic instability

K. Taniguchi, H. Kuwae, N. Hayashi, Y. Kawai

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Intermittent chaotic phenomena caused by the current-driven ion acoustic instability are experimentally observed using a Double Plasma device, in which two mesh grids are installed to excite the instability. When a dc potential is applied to one of the two mesh grids and exceeds a certain threshold, the system suddenly transits from a periodic state to a chaotic state. At the same time, the signals picked up as perturbation components of a current exhibit intermittent turbulent bursts. The calculations of the correlation dimension and the Lyapunov exponent indicate that the system reaches a chaotic state. Furthermore, it is found that the results of mathematical and statistical analysis of observed signals agree with the theoretical properties of the type-1 intermittency: the occurrence of [formula omitted]-type low-frequency noise and the probability distribution of the duration between two bursts. Therefore, it is concluded that the present system reaches a chaotic state via the type-1 intermittency.

Original languageEnglish
Pages (from-to)401-405
Number of pages5
JournalPhysics of Plasmas
Volume5
Issue number2
DOIs
Publication statusPublished - Feb 1998

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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