Studies of high frequency hot ion instabilities by means of correlation ECE on Tore Supra

Autor:	V S Udintsev, M Goniche, G Giruzzi, G T A Huysmans, F Imbeaux, P Maget, X Garbet, R Sabot, J L Ségui, F Turco, T P Goodman, D Molina, H Weisen, the Tore Supra team
Rok vydání:	2006
Předmět:	Physics Nuclear Energy and Engineering Physics::Plasma Physics Normal mode Electron temperature Magnetic confinement fusion Plasma diagnostics Plasma Tore Supra Atomic physics Condensed Matter Physics Temperature measurement Ion
Zdroj:	Plasma Physics and Controlled Fusion. 48:L33-L44
ISSN:	1361-6587 0741-3335
Popis:	High frequency (> 100 kHz) modes have been observed for the first time in combined LHCD and ICR-heated minority H (D) plasmas on Tore Supra by means of a correlation ECE diagnostic and by fluctuation reflectometers. These modes have been identified as the toroidicity-induced Alfven eigenmodes (TAEs) that are destabilized by fast minority hydrogen ions with energies above 250 keV. In reversed central shear plasmas with non-linear oscillations of the central temperature, evolution of the TAE frequency is linked to the development of the local safety factor. This confirms that the central temperature and the q-profile evolve as a non-linearly coupled system in the so-called O-regime in Tore Supra.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::95b6292992776623d513dfff3eb4ccbc https://doi.org/10.1088/0741-3335/48/3/l02 Zobrazit plný text záznamu