Interaction of lower hybrid wave with fast ions injected by neutral beam on the JT-60 tokamak

M. Nemoto, K. Ushigusa, T. Imai, Y. Ikeda, O. Naito, Y. Kusama, K. Tobita, H. Takeuchi

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The acceleration of beam ions due to their interaction with lower hybrid (LH) waves is investigated. The critical coupling density, above which the LH power is absorbed mostly by ions rather than electrons, is found to depend strongly on the LH frequency but not on the refractive index parallel to the toroidal magnetic field. These dependences are in good agreement with the predictions of a simple, clear theory based on a dispersion relation in the electrostatic cold-plasma approximation.

Original languageEnglish
Pages (from-to)70-73
Number of pages4
JournalPhysical review letters
Volume67
Issue number1
DOIs
Publication statusPublished - 1991 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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