Impact of helium neutral gas puff on plasma turbulence in linear magnetized argon plasmas

T. Kobayashi; F. Kin; Y. Kawachi; M. Sasaki; Y. Kosuga; K. Yamasaki; S. Inagaki

doi:10.1063/5.0007899

Impact of helium neutral gas puff on plasma turbulence in linear magnetized argon plasmas

T. Kobayashi, F. Kin, Y. Kawachi, M. Sasaki, Y. Kosuga, K. Yamasaki, S. Inagaki

研究成果: Contribution to journal › Article › 査読

1 被引用数 (Scopus)

抄録

In order to explore the impact of the neutrals on the plasma turbulence, a new gas puff system is developed for a linear magnetized plasma column PANTA. Helium gas is injected into the argon plasma without changing the electron density profile. After the helium gas puff, the dominant fluctuation mode changes from the broadband m = 2 drift wave to the coherent m = 1 mode, where m is the azimuthal mode number. Accordingly, the property of the nonlinear coupling with other fluctuating modes changes from broadband couplings to coherent couplings.

本文言語	英語
論文番号	062309
ジャーナル	Physics of Plasmas
巻	27
号	6
DOI	https://doi.org/10.1063/5.0007899
出版ステータス	出版済み - 6 1 2020
外部発表	はい

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

文献へのアクセス

10.1063/5.0007899

フィンガープリント「Impact of helium neutral gas puff on plasma turbulence in linear magnetized argon plasmas」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル

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abstract = "In order to explore the impact of the neutrals on the plasma turbulence, a new gas puff system is developed for a linear magnetized plasma column PANTA. Helium gas is injected into the argon plasma without changing the electron density profile. After the helium gas puff, the dominant fluctuation mode changes from the broadband m = 2 drift wave to the coherent m = 1 mode, where m is the azimuthal mode number. Accordingly, the property of the nonlinear coupling with other fluctuating modes changes from broadband couplings to coherent couplings.",

author = "T. Kobayashi and F. Kin and Y. Kawachi and M. Sasaki and Y. Kosuga and K. Yamasaki and S. Inagaki",

note = "Funding Information: We acknowledge the useful discussions with D. Kato and H. Tanuma, and thank S. Sakakibara and A. Fujisawa for the strong support. This work was partly supported by the Grant-in-Aid for Scientific Research of JSPS (Nos. 15H02155 and 17K14898), and the collaboration programs of RIAM of Kyushu University and Asada Science Foundation.",

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T1 - Impact of helium neutral gas puff on plasma turbulence in linear magnetized argon plasmas

AU - Kobayashi, T.

AU - Kin, F.

AU - Kawachi, Y.

AU - Sasaki, M.

AU - Kosuga, Y.

AU - Yamasaki, K.

AU - Inagaki, S.

N1 - Funding Information: We acknowledge the useful discussions with D. Kato and H. Tanuma, and thank S. Sakakibara and A. Fujisawa for the strong support. This work was partly supported by the Grant-in-Aid for Scientific Research of JSPS (Nos. 15H02155 and 17K14898), and the collaboration programs of RIAM of Kyushu University and Asada Science Foundation.

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Y1 - 2020/6/1

N2 - In order to explore the impact of the neutrals on the plasma turbulence, a new gas puff system is developed for a linear magnetized plasma column PANTA. Helium gas is injected into the argon plasma without changing the electron density profile. After the helium gas puff, the dominant fluctuation mode changes from the broadband m = 2 drift wave to the coherent m = 1 mode, where m is the azimuthal mode number. Accordingly, the property of the nonlinear coupling with other fluctuating modes changes from broadband couplings to coherent couplings.

AB - In order to explore the impact of the neutrals on the plasma turbulence, a new gas puff system is developed for a linear magnetized plasma column PANTA. Helium gas is injected into the argon plasma without changing the electron density profile. After the helium gas puff, the dominant fluctuation mode changes from the broadband m = 2 drift wave to the coherent m = 1 mode, where m is the azimuthal mode number. Accordingly, the property of the nonlinear coupling with other fluctuating modes changes from broadband couplings to coherent couplings.

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