Analysis of minority velocity distribution and power deposition profile in icrf heating in a tokamak

T. Morishita, A. Fukuyama, K. Hamamatsu, S. I. Itoh, K. Itoh

Research output: Contribution to journalReview article

9 Citations (Scopus)

Abstract

The power deposition profile in the two-ion hybrid resonance heating regime in tokamaks is studied by including the modification of the minority ion velocity distribution. The Fokker-Planck equation and the kinetic wave equation are solved numerically in order to describe the time evolution of the velocity distribution and the deposition profile. The power that is transferred coUisionally to the electrons and majority ions from the minority ions is also calculated. Application to the JET plasma demonstrates strong electron heating near the plasma centre. Control of the deposition profile by varying the minority ion concentration and the magnitude of the magnetic field is also discussed.

Original languageEnglish
Pages (from-to)1291-1307
Number of pages17
JournalNuclear Fusion
Volume27
Issue number8
DOIs
Publication statusPublished - Aug 1987

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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