Enhanced confinement and stability in DIII-D discharges with reversed magnetic shear

E. J. Strait, L. L. Lao, M. E. Mauel, B. W. Rice, T. S. Taylor, K. H. Burrell, M. S. Chu, E. A. Lazarus, T. H. Osborne, S. J. Thompson, A. D. Turnbull

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513 引文 斯高帕斯(Scopus)

摘要

Peaked pressure profiles and central ion temperatures up to 20 keV are observed in DIII-D H-mode discharges with a central region of strongly reversed magnetic shear. Short wavelength ballooning modes are stabilized by access to the second stable regime, longer wavelength modes by a conducting wall and possibly by rotational shear. Values of normalized beta, N=aBI, up to 4 (%-m-T/MA), energy confinement are a factor of 3 better than L mode, and at least 50% of the noninductive plasma current in this regime demonstrates compatibility with requirements for a steady-state high-beta tokamak power plant.

原文English
頁(從 - 到)4421-4424
頁數4
期刊Physical review letters
75
發行號24
DOIs
出版狀態Published - 1995

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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