Two-dimensional bispectral analysis of drift wave turbulence in a cylindrical plasma

研究成果: ジャーナルへの寄稿記事

16 引用 (Scopus)

抄録

Bispectral analysis and multichannel measurement are becoming attractive investigation tools in plasma fluctuation studies. In the Large Mirror Device-Upgrade, the measurement of fluctuations in the ion saturation-current with a 64-channel poloidal Langmuir probe array was performed. The two-dimensional (2D) (poloidal wave number and frequency) power spectrum showed a number of pronounced peaks and broadband fluctuations in the poloidal wave number-frequency space. We applied 2D bispectral analysis, which considers both the matching conditions of poloidal wave number and frequency, to the spatiotemporal waveform, and confirmed the nonlinear couplings between coherent-coherent, coherent-broadband, and broadband-broadband fluctuation components. More than ten peaks were revealed to have as their origins only three original parent modes generated in the plasma. Comparison between the theoretical estimate and experimental observation for the bicoherence showed good agreement.

元の言語英語
記事番号052313
ジャーナルPhysics of Plasmas
17
発行部数5
DOI
出版物ステータス出版済み - 5 1 2010

Fingerprint

cylindrical plasmas
dimensional analysis
turbulence
broadband
electrostatic probes
power spectra
waveforms
mirrors
saturation
estimates
ions

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

これを引用

Two-dimensional bispectral analysis of drift wave turbulence in a cylindrical plasma. / Yamada, Takuma; Itoh, Sanae; Shigeru, Inagaki; Nagashima, Yoshihiko; Shinohara, S.; Kasuya, Naohiro; Terasaka, Kenichiro; Kamataki, Kunihiro; Arakawa, H.; Yagi, M.; fujisawa, akihide; Itoh, K.

:: Physics of Plasmas, 巻 17, 番号 5, 052313, 01.05.2010.

研究成果: ジャーナルへの寄稿記事

@article{74884422859c4fccaddd30f30af32f27,
title = "Two-dimensional bispectral analysis of drift wave turbulence in a cylindrical plasma",
abstract = "Bispectral analysis and multichannel measurement are becoming attractive investigation tools in plasma fluctuation studies. In the Large Mirror Device-Upgrade, the measurement of fluctuations in the ion saturation-current with a 64-channel poloidal Langmuir probe array was performed. The two-dimensional (2D) (poloidal wave number and frequency) power spectrum showed a number of pronounced peaks and broadband fluctuations in the poloidal wave number-frequency space. We applied 2D bispectral analysis, which considers both the matching conditions of poloidal wave number and frequency, to the spatiotemporal waveform, and confirmed the nonlinear couplings between coherent-coherent, coherent-broadband, and broadband-broadband fluctuation components. More than ten peaks were revealed to have as their origins only three original parent modes generated in the plasma. Comparison between the theoretical estimate and experimental observation for the bicoherence showed good agreement.",
author = "Takuma Yamada and Sanae Itoh and Inagaki Shigeru and Yoshihiko Nagashima and S. Shinohara and Naohiro Kasuya and Kenichiro Terasaka and Kunihiro Kamataki and H. Arakawa and M. Yagi and akihide fujisawa and K. Itoh",
year = "2010",
month = "5",
day = "1",
doi = "10.1063/1.3429674",
language = "English",
volume = "17",
journal = "Physics of Plasmas",
issn = "1070-664X",
publisher = "American Institute of Physics Publising LLC",
number = "5",

}

TY - JOUR

T1 - Two-dimensional bispectral analysis of drift wave turbulence in a cylindrical plasma

AU - Yamada, Takuma

AU - Itoh, Sanae

AU - Shigeru, Inagaki

AU - Nagashima, Yoshihiko

AU - Shinohara, S.

AU - Kasuya, Naohiro

AU - Terasaka, Kenichiro

AU - Kamataki, Kunihiro

AU - Arakawa, H.

AU - Yagi, M.

AU - fujisawa, akihide

AU - Itoh, K.

PY - 2010/5/1

Y1 - 2010/5/1

N2 - Bispectral analysis and multichannel measurement are becoming attractive investigation tools in plasma fluctuation studies. In the Large Mirror Device-Upgrade, the measurement of fluctuations in the ion saturation-current with a 64-channel poloidal Langmuir probe array was performed. The two-dimensional (2D) (poloidal wave number and frequency) power spectrum showed a number of pronounced peaks and broadband fluctuations in the poloidal wave number-frequency space. We applied 2D bispectral analysis, which considers both the matching conditions of poloidal wave number and frequency, to the spatiotemporal waveform, and confirmed the nonlinear couplings between coherent-coherent, coherent-broadband, and broadband-broadband fluctuation components. More than ten peaks were revealed to have as their origins only three original parent modes generated in the plasma. Comparison between the theoretical estimate and experimental observation for the bicoherence showed good agreement.

AB - Bispectral analysis and multichannel measurement are becoming attractive investigation tools in plasma fluctuation studies. In the Large Mirror Device-Upgrade, the measurement of fluctuations in the ion saturation-current with a 64-channel poloidal Langmuir probe array was performed. The two-dimensional (2D) (poloidal wave number and frequency) power spectrum showed a number of pronounced peaks and broadband fluctuations in the poloidal wave number-frequency space. We applied 2D bispectral analysis, which considers both the matching conditions of poloidal wave number and frequency, to the spatiotemporal waveform, and confirmed the nonlinear couplings between coherent-coherent, coherent-broadband, and broadband-broadband fluctuation components. More than ten peaks were revealed to have as their origins only three original parent modes generated in the plasma. Comparison between the theoretical estimate and experimental observation for the bicoherence showed good agreement.

UR - http://www.scopus.com/inward/record.url?scp=77952977035&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77952977035&partnerID=8YFLogxK

U2 - 10.1063/1.3429674

DO - 10.1063/1.3429674

M3 - Article

VL - 17

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 5

M1 - 052313

ER -