Energy transport in tokamak plasmas with central current density control using fast waves

C. B. Forest, C. C. Petty, M. E. Austin, F. W. Baity, K. H. Burrell, S. C. Chiu, M. S. Chu, P. Gohil, A. W. Hyatt, H. Ikezi, E. A. Lazarus, M. Murakami, R. I. Pinsker, M. Porkolab, R. Prater, B. W. Rice, G. M. Staebler, E. J. Strait, T. S. Taylor

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36 引文 斯高帕斯(Scopus)

摘要

Fast wave current drive has been used to substantially modify the central current density profile in a tokamak plasma. Counter-fast wave current drive (FWCD) applied to discharges with negative central magnetic shear enhances the shear reversal and leads to a distinct transition to a mode of improved core confinement. In this state, the electron thermal diffusivity decreases by \(50+/-20\)% and the ion diffusivity by \(80+/-20\)%, compared to just before the transition. The FWCD and electron heating elucidates the role of the current profile on confinement and stability.

原文English
頁(從 - 到)3141-3144
頁數4
期刊Physical review letters
77
發行號15
DOIs
出版狀態Published - 1996

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

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