Nonlinear correlations in phase-space resolved fluctuations at drift wave frequencies

Date

2007-12-01

Author

Skiff, F.
Uzun Kaymak, İlker Ümit
Diallo, A.

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In an effort to better understand plasma transport, we measure fluctuations associated with drift instabilities resolved in the ion phase-space. Primary attention is given to fluctuations near the electron drift frequency where there are two general components to the observed fluctuations. From two (spatial) point measurements of the ion distribution function with a variable separation along the magnetic field, a number of statistical measures of the fluctuations are calculated including cross-correlation and cross-bicoherence. Both fluid (omega/k >>upsilon(ti)) and kinetic (omega/k similar to upsilon(ti)) components are observed in the fluctuations. The nonlinear interactions are found to depend strongly on the ion particle velocity.

Subject Keywords

Nuclear Energy and Engineering, Condensed Matter Physics

URI

https://hdl.handle.net/11511/36679

Journal

PLASMA PHYSICS AND CONTROLLED FUSION

DOI

https://doi.org/10.1088/0741-3335/49/12b/s24

Collections

Department of Physics, Article

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Citation Formats

F. Skiff, İ. Ü. Uzun Kaymak, and A. Diallo, “Nonlinear correlations in phase-space resolved fluctuations at drift wave frequencies,” PLASMA PHYSICS AND CONTROLLED FUSION, pp. 0–0, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36679.