Ion cyclotron range of frequency heating of a deuterium-tritium plasma via the second-harmonic tritium cyclotron resonance

J. R. Wilson, C. E. Bush, D. Darrow, J. C. Hosea, E. F. Jaeger, R. Majeski, M. Murakami, C. K. Phillips, J. H. Rogers, G. Schilling, J. E. Stevens, E. Synakowski, G. Taylor

Research output: Contribution to journalArticlepeer-review

Abstract

Experiments have been performed on the TFTR to study rf wave heating of a D-T plasma by way of the second-harmonic tritium cyclotron resonance. The addition of tritium ions to a deuterium plasma allows for absorption of the rf waves at the tritium cyclotron harmonics and by electron damping of a mode converted ion Bernstein wave. Competing mechanisms include direct electron damping and damping at the fundamental cyclotron resonance of deuterium, α particles, and 3He ions. The contribution of each is estimated from a series of plasma discharges where various plasma parameters are varied. The majority of the rf power is found to damp on the tritium ions.

Original languageEnglish
Pages (from-to)842-845
Number of pages4
JournalPhysical Review Letters
Volume75
Issue number5
DOIs
StatePublished - 1995

ASJC Scopus subject areas

  • General Physics and Astronomy

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