Reduced edge instability and improved confinement in the MST reversed-field pinch

B. E. Chapman, J. K. Anderson, T. M. Biewer, D. L. Brower, S. Castillo, P. K. Chattopadhyay, C. S. Chiang, D. Craig, D. J. Den Hartog, G. Fiksel, P. W. Fontana, C. B. Forest, S. Gerhardt, A. K. Hansen, D. Holly, Y. Jiang, N. E. Lanier, S. C. Prager, J. C. Reardon, J. S. Sarff

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Abstract

An overview is given on two advances in the understanding and control of magnetic fluctuations and energy transport. First, it is reported that the previously achieved m=1 fluctuation reduction and confinement improvement are limited by bursts of edge-resonant m=0 magnetic fluctuations observed in conjunction with the auxiliary current drive. Second, it is shown that by suppressing the bursts, an additional improvement in energy confinement is achieved.

Original languageEnglish (US)
Article number205001
Pages (from-to)205001/1-205001/4
JournalPhysical review letters
Volume87
Issue number20
StatePublished - Nov 12 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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