Recent measurements of the electric potential profile and fluctuations in ECRH and NBI plasmas on TJ-II stellarator

• Date: 2009
• Main Authors: Krupnik, L.I., Melnikov, A.V., Hidalgo, C., Eliseev, L.G., Chmyga, A.A., Komarov, A.D., Kozachok, A.S., Perfilov, S.V., Lysenko, L.G., Zhezhera, A.I., Pedrosa, M.A., de Pablos, J.L.
• Format: Article
• Language: English
• Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2009
• Series: Вопросы атомной науки и техники
• Subjects: Магнитное удержание
• Online Access: http://dspace.nbuv.gov.ua/handle/123456789/88171
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Recent measurements of the electric potential profile and fluctuations in ECRH and NBI plasmas on TJ-II stellarator / L.I. Krupnik, A.V. Melnikov, C. Hidalgo, L.G. Eliseev, A.A. Chmyga, A.D. Komarov, A.S. Kozachok, S.V. Perfilov, L.G. Lysenko, A.I. Zhezhera, M.A. Pedrosa, J.L. de Pablos // Вопросы атомной науки и техники. — 2009. — № 1. — С. 31-33. — Бібліогр.: 2 назв. — англ.

Heavy Ion Beam Probe diagnostics is used in TJ-II stellarator to study directly the plasma electric potential with a good spatial (up to 1cm) and temporal (up to 2 µs ) resolution. Low density (ne = (0.3…0.5)×1019 m –3) ECRH plasma in TJ-II is characterized by positive plasma potential (ϕ(0) = +6...