Dynamics of particle flux in a cylindrical magnetized plasma

S. Oldenbürger, S. Inagaki, T. Kobayashi, H. Arakawa, N. Ohyama, K. Kawashima, Y. Tobimatsu, A. Fujisawa, K. Itoh, S. I. Itoh

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29 Citations (Scopus)

Abstract

Fluctuation-induced cross-field convective particle flux is studied in the cylindrical magnetized plasma assembly for non-linear turbulence analysis (PANTA). The plasma presents a wave turbulence characterized by a limited number of developing modes. To study the link between mode dynamics and particle transport, frequency-dependent time evolution of transport is obtained by applying complex continuous wavelet decomposition on spatio-temporal data from electrostatic probes. The method is shown to recover transport description consistent with other analysis methods for a weakly turbulent state. For a plasma state featuring a large non-sinusoidal structure, the time evolution of transport on the second harmonic of the main fluctuation shows a slow modulation of azimuthal mode number m=0 with similarities to a zonal perturbation.

Original languageEnglish
Article number055002
JournalPlasma Physics and Controlled Fusion
Volume54
Issue number5
DOIs
Publication statusPublished - May 2012

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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