Alfvén waves: a journey between space and fusion plasmas

Chen, Liu

doi:10.1088/0741-3335/50/12/124001

Alfvén waves: a journey between space and fusion plasmas

Journal Article · Mon Nov 03 04:00:00 EST 2008 · Plasma Physics and Controlled Fusion

DOI:https://doi.org/10.1088/0741-3335/50/12/124001· OSTI ID:1130349

Chen, Liu ^[1]

University of California, Irvine

Alfvén waves discovered by Hannes Alfvén (1942 Nature 150 405) are fundamental electromagnetic oscillations in magnetized plasmas existing in the nature and laboratories. Alfvén waves play important roles in the heating, stability and transport of plasmas. The anisotropic nearly incompressible shear Alfvén wave is particularly interesting since, in realistic non-uniform plasmas, its wave spectra consist of both the regular discrete and the singular continuous components. In this Alfvén lecture, I will discuss these spectral properties and examine their significant linear and nonlinear physics implications. These discussions will be based on perspectives from my own research in both space and laboratory fusion plasmas, and will demonstrate the positive feedback and cross-fertilization between these two important sub-disciplines of plasma physics research. Some open issues of nonlinear Alfvén wave physics in burning fusion as well as magnetospheric space plasmas will also be explored.

Research Organization:: Univ. of California, Irvine, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)

DOE Contract Number:: FG02-04ER54736

OSTI ID:: 1130349

Report Number(s):: DOE-UCI-ER54736

Journal Information:: Plasma Physics and Controlled Fusion, Journal Name: Plasma Physics and Controlled Fusion Journal Issue: 12 Vol. 50; ISSN 0741-3335

Publisher:: IOP Science

Country of Publication:: United States

Language:: English

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