Identification of Low-Frequency Zonal Flow in a Linear Magnetic Plasma Device

doi:10.1088/0256-307X/28/2/025202

Chinese Physics Letters

PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES

Identification of Low-Frequency Zonal Flow in a Linear Magnetic Plasma Device

Chen Ran (陈冉)¹, Xie Jin-Lin (谢锦林)¹, Yu Chang-Xuan (俞昌旋)¹, Liu A-Di (刘阿娣)¹, Lan Tao (兰涛)¹, Zhang Shou-Biao (张寿彪)¹, Hu Guang-Hai (胡广海)¹, Li Hong (李弘)¹ and Liu Wan-Dong (刘万东)¹

2011 Chinese Physical Society and IOP Publishing Ltd
Chinese Physics Letters, Volume 28, Number 2 Citation Chen Ran et al 2011 Chinese Phys. Lett. 28 025202 DOI 10.1088/0256-307X/28/2/025202

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¹ CAS Key Laboratory of Plasma Physics, Department of Modern Physics, University of Science and Technology of China, Hefei 230026

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Received 28 June 2010

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Abstract

A low-frequency (f < 2 kHz) potential structure (LFPS) is observed in a linear magnetic plasma device using Langmuir probe arrays. The center frequency of this structure is near zero. This structure has azimuthal and axial symmetries while with a finite radial wavenumber. The complete 3D spectra features of this structure have been identified to have the characteristics expected for zonal flows.

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Identification of Low-Frequency Zonal Flow in a Linear Magnetic Plasma Device

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