Local transport in joint European Tokamak edge-localized, high-confinement mode plasmas with H, D, DT, and T isotopes

TitleLocal transport in joint European Tokamak edge-localized, high-confinement mode plasmas with H, D, DT, and T isotopes
Publication TypeJournal Article
Year of Publication2000
AuthorsR.V Budny, D.R Ernst, T.S Hahm, D.C McCune, J.P Christiansen, J.G Cordey, C.G Gowers, K. Guenther, N. Hawkes, O.N Jarvis, P.M Stubberfield, K.D Zastrow, L.D Horton, G. Saibene, R. Sartori, K. Thomsen, M.G von Hellermann
JournalPhysics of Plasmas
Volume7
Number12
Pagination5038-5050
Date PublishedDec
ISBN Number1070-664X
Abstract

The edge-localized, high-confinement mode regime is of interest for future Tokamak reactors since high performance has been sustained for long durations. Experiments in the Joint European Tokamak [M. Keilhacker et al., Nuclear Fusion 39, 209 (1999)] have studied this regime using scans with the toroidal field and plasma current varied together in H, D, DT, and T isotopes. The local energy transport in more than fifty of these plasmas is analyzed, and empirical scaling relations are derived for energy transport coefficients during quasi-steady state conditions using dimensionless parameters. Neither the Bohm nor gyro-Bohm expressions give the shapes of the profiles. The scalings with beta and nu (*) are in qualitative agreement with Ion Temperature Gradient theory. (C) 2000 American Institute of Physics. [S1070-664X(00)02912-8].

DOI10.1063/1.1320466
PID

cf265cf3ade847c64d770625a7625619

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