Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Rapid Communications
Observations of Intermittent Structures in the Periphery of a Cylindrical Linear Plasma in PANTA
Noriko OHYAMAAkihide FUJISAWAShigeru INAGAKIYoshihiko NAGASHIMAStella OLDENBÜRGERTatsuya KOBAYASHIKatsuyuki KAWASHIMAYuuki TOBIMATSUTetsuo YAMASHITASoutaro YAMADAHiroyuki ARAKAWATakuma YAMADAMasatoshi YAGINaohiro KASUYAMakoto SASAKISanae-I. ITOHKimitaka ITOH
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2012 Volume 7 Pages 1201025

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Abstract

Intermittent pulse events have been observed in the periphery of the linear cylindrical plasmas produced in Plasma Assembly for Nonlinear Turbulence Analysis (PANTA). A novel combination of 32 azimuthal and 3 radial probes enables us to obtain 32 × 3 = 96 pairs of correlations simultaneously. The two-dimensional (2D) correlation analysis shows that the intermittent structure is well correlated with quasi-periodic bursts inside the plasma, and it reveals that the intermittent pulse is caused by the passage of a radially elongated and azimuthally distorted localized structure rotating in the ion diamagnetic direction.

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© 2012 by The Japan Society of Plasma Science and Nuclear Fusion Research
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