Observation of competition between drift instability and flute instability in a bounded linear ECR plasma

Kunihiro Kamataki; Yoshihiko Nagashima; Shunjiro Shinohara; Yoshinobu Kawai; Sigeru Inagaki; Masatoshi Yagi; Kimitaka Itoh; Sanae I. Itoh

doi:10.1585/pfr.2.034

Observation of competition between drift instability and flute instability in a bounded linear ECR plasma

Kunihiro Kamataki, Yoshihiko Nagashima, Shunjiro Shinohara, Yoshinobu Kawai, Sigeru Inagaki, Masatoshi Yagi, Kimitaka Itoh, Sanae I. Itoh

Research output: Contribution to journal › Article › peer-review

Abstract

Competition behavior between the drift instability and the flute instability has been investigated experimentally in a bounded linear electron cyclotron resonance (ECR) plasma. Time evolutions of the fluctuation in ion saturation currents clearly show the successive appearance of the two instabilities. The drift instability is excited first, then the flute instability appears along with the suppression of the drift instability, and finally, both fluctuations are stabilized. The cyclic competition process in these instabilities continues periodically, and is closely related to the radial density profile.

Original language	English
Article number	034
Journal	Plasma and Fusion Research
Volume	2
DOIs	https://doi.org/10.1585/pfr.2.034
Publication status	Published - 2007

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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title = "Observation of competition between drift instability and flute instability in a bounded linear ECR plasma",

abstract = "Competition behavior between the drift instability and the flute instability has been investigated experimentally in a bounded linear electron cyclotron resonance (ECR) plasma. Time evolutions of the fluctuation in ion saturation currents clearly show the successive appearance of the two instabilities. The drift instability is excited first, then the flute instability appears along with the suppression of the drift instability, and finally, both fluctuations are stabilized. The cyclic competition process in these instabilities continues periodically, and is closely related to the radial density profile.",

author = "Kunihiro Kamataki and Yoshihiko Nagashima and Shunjiro Shinohara and Yoshinobu Kawai and Sigeru Inagaki and Masatoshi Yagi and Kimitaka Itoh and Itoh, {Sanae I.}",

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year = "2007",

doi = "10.1585/pfr.2.034",

language = "English",

volume = "2",

journal = "Plasma and Fusion Research",

issn = "1880-6821",

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T1 - Observation of competition between drift instability and flute instability in a bounded linear ECR plasma

AU - Kamataki, Kunihiro

AU - Nagashima, Yoshihiko

AU - Shinohara, Shunjiro

AU - Kawai, Yoshinobu

AU - Inagaki, Sigeru

AU - Yagi, Masatoshi

AU - Itoh, Kimitaka

AU - Itoh, Sanae I.

PY - 2007

Y1 - 2007

N2 - Competition behavior between the drift instability and the flute instability has been investigated experimentally in a bounded linear electron cyclotron resonance (ECR) plasma. Time evolutions of the fluctuation in ion saturation currents clearly show the successive appearance of the two instabilities. The drift instability is excited first, then the flute instability appears along with the suppression of the drift instability, and finally, both fluctuations are stabilized. The cyclic competition process in these instabilities continues periodically, and is closely related to the radial density profile.

AB - Competition behavior between the drift instability and the flute instability has been investigated experimentally in a bounded linear electron cyclotron resonance (ECR) plasma. Time evolutions of the fluctuation in ion saturation currents clearly show the successive appearance of the two instabilities. The drift instability is excited first, then the flute instability appears along with the suppression of the drift instability, and finally, both fluctuations are stabilized. The cyclic competition process in these instabilities continues periodically, and is closely related to the radial density profile.

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DO - 10.1585/pfr.2.034

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JO - Plasma and Fusion Research

JF - Plasma and Fusion Research

M1 - 034

ER -

Observation of competition between drift instability and flute instability in a bounded linear ECR plasma

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