Internal measurements of Alfvén eigenmodes with heavy ion beam probing in toroidal plasmas

Energetic ion driven Alfvén eigenmodes (AEs) are believed to be an important element disturbing the transport in a future fusion reactor. The studies of the AE properties in modern toroidal devices have made crucial contributions to the reactor relevant physics. AEs are conventionally studied by mag...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Nuclear fusion 2010-08, Vol.50 (8), p.084023-084023
Hauptverfasser:	Melnikov, A.V, Eliseev, L.G, Jiménez-Gómez, R, Ascasibar, E, Hidalgo, C, Chmyga, A.A, Komarov, A.D, Kozachok, A.S, Krasilnikov, I.A, Khrebtov, S.M, Krupnik, L.I, Liniers, M, Lysenko, S.E, Mavrin, V.A, de Pablos, J.L, Pedrosa, M.A, Perfilov, S.V, Ufimtsev, M.V, Ido, T, Nagaoka, K, Yamamoto, S, Taschev, Yu.I, Zhezhera, A.I, Smolyakov, A.I
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplitudes Density Electric potential Fluid dynamics Flux Ion beams Magnetic fields Oscillations Turbulence
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Energetic ion driven Alfvén eigenmodes (AEs) are believed to be an important element disturbing the transport in a future fusion reactor. The studies of the AE properties in modern toroidal devices have made crucial contributions to the reactor relevant physics. AEs are conventionally studied by magnetic probes (MPs), which provide the poloidal m and toroidal n mode numbers and their spectral characteristics. Heavy ion beam probing (HIBP) has become a new tool to study AEs with high spatial and frequency resolution. HIBP in the TJ-II heliac observes locally (∼1 cm) resolved AEs over the whole radial interval. The set of low- m ( m < 8) modes, detected with the high-frequency resolution (
ISSN:	0029-5515 1741-4326
DOI:	10.1088/0029-5515/50/8/084023