Parallel rf force driven by the inhomogeneity of power absorption in magnetized plasma

Zhe Gao, Jiale Chen, Nathaniel J. Fisch

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

A nonlinear parallel force can be exerted through the inhomogeneity of rf resonant absorption in a magnetized plasma. While providing no integrated force over a plasma volume, this force can redistribute momentum parallel to the magnetic field. Because flows and currents parallel to the magnetic field encounter different resistances, this redistribution can play a large role, in addition to the role played by the direct absorption of parallel momentum. For nearly perpendicular propagating waves in a tokamak plasma, this additional force is expected to affect significantly the toroidal rf-driven current and the toroidal flow drive.

Original languageEnglish (US)
Article number235004
JournalPhysical review letters
Volume110
Issue number23
DOIs
StatePublished - Jun 6 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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