Observation of neoclassical transport in reverse shear plasmas on TFTR

P. C. Efthimion, S. Von Goeler, W. A. Houlberg, E. J. Synakowski, M. C. Zarnstorff, S. H. Batha, R. E. Bell, M. Bitter, C. E. Bush, F. M. Levinton, E. Mazzucato, D. C. McCune, D. Mueller, H. K. Park, A. T. Ramsey, A. L. Roquemore, G. Taylor

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Perturbative experiments on TFTR have investigated the transport of multiple ion species in reverse shear (RS) plasmas. The profile evolutions of trace tritium and helium and intrinsic carbon indicate the formation of core particle transport barriers in enhanced reverse shear (ERS) plasmas. There is an order of magnitude reduction in the particle diffusivity inside the RS region. The diffusivities for these species in ERS plasmas agree with neoclassical theory.

Original languageEnglish
Pages (from-to)1905-1909
Number of pages5
JournalNuclear Fusion
Volume39
Issue numberSpecial Issu
DOIs
StatePublished - 1999

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