L-HTransition in the Mega-Amp Spherical Tokamak

Autor:	A. Kirk, Mast Team, A. R. Field, M. P. S. Nightingale, G. F. Counsell, L. Appel, M. J. Walsh, Romualdo Martín, E. R. Arends, G. Cunningham, Mikhail Gryaznevich, M. R. Tournianski, P. G. Carolan, Per Helander, S. Korsholm, Vladimir Shevchenko, N. J. Conway, A. Dnestrovskij, H. F. Meyer, C. M. Roach, Yu. N. Dnestrovskij, A. Sykes, C. Byrom, R. J. Akers, C.D. Warrick, S.J. Fielding, Nbi Team
Rok vydání:	2002
Předmět:	Physics Physics::Plasma Physics Turbulence General Physics and Astronomy Density limit Free space Plasma Electron Spherical tokamak Atomic physics
Zdroj:	Physical Review Letters. 88
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.88.035002
Popis:	H-mode plasmas have been achieved on the MAST spherical tokamak at input power considerably higher than predicted by conventional threshold scalings. Following L-H transition, a clear improvement in energy confinement is obtained, exceeding recent international scalings even at densities approaching the Greenwald density limit. Transition is accompanied by an order-of-magnitude increase in edge-density gradient, a marked decrease in turbulence, the efficient conversion of internal electron Bernstein waves into free space waves, and the onset and saturation of edge poloidal rotation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f3bdd16548bb773efcceccde00813062 https://doi.org/10.1103/physrevlett.88.035002 Zobrazit plný text záznamu