Ion heat pulse after a sawtooth crash in the JAERI Fusion Torus-2M tokamak

Y. Miura, F. Okano, N. Suzuki, M. Mori, K. Hoshino, T. Takizuka, K. Itoh, S. I. Itoh

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The ion heat pulse after a sawtooth crash is studied by a time-of-flight (TOF) neutral measurement. A rapid change of the bulk ion energy distribution near the edge is observed after a sawtooth crash. The delay time is measured, and the effective measuring position is estimated by a neutral transport code. Then a transient ion thermal conductivity, χiHP, of about (7-18) m2/s is evaluated for the low confinement mode (L-mode) plasma. The simple diffusive model with constant χiHP, however, does not explain the amplitude of the pulse in the ion energy distribution.

Original languageEnglish
Pages (from-to)3696-3700
Number of pages5
JournalPhysics of Plasmas
Volume3
Issue number10
DOIs
Publication statusPublished - 1996

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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