Long-distance correlations in TCABR biasing experiments

Autor:	Ivan Cunha Nascimento, P. Duarte, M. Mizintseva, Vladimir E. Moiseenko, Mikhail Gryaznevich, Artour G Elfimov, D.J. Trembach, F. do Nascimento, G. Vorobyov, L.M.F. Schmutzler, D. L. Toufen, S.R.S. Tekieh, F.O. Borges, W.P. de Sá, Zwinglio Guimarães-Filho, V. Bellintani, G. Ronchi, Ricardo Magnus Osorio Galvao, J. H. F. Severo, Edson Kenzo Sanada, R. Arvin, Siamak Mohammadi, Mahmood Ghoranneviss, R.M. de Castro, A P Reis, Juan Iraburu Elizondo, Yu K Kuznetsov, A.V. Melnikov, Munemasa Machida, R. Narayanan, Társis M Germano, L. F. Ruchko, G.P. Canal, Carlos A. Silva, H. F. C. Figueiredo, M. Peres Alonso, Iberê L. Caldas, O. C. Usuriaga
Rok vydání:	2012
Předmět:	Physics Nuclear and High Energy Physics Toroid Tokamak Biasing Plasma Condensed Matter Physics Computational physics law.invention Plasma edge symbols.namesake Nuclear magnetic resonance law symbols Langmuir probe Wavenumber Magnetohydrodynamics
Zdroj:	Nuclear Fusion. 52:063004
ISSN:	1741-4326 0029-5515
Popis:	Long-distance correlations (LDCs) of plasma potential fluctuations in the plasma edge have been investigated in the TCABR tokamak in the regime of edge biasing H-mode using an array of multi-pin Langmuir probes. This activity was carried out as part of the scientific programme of the 4th IAEA Joint Experiment (2009). The experimental data confirm the effect of amplification of LDCs in potential fluctuations during biasing recently observed in stellarators and tokamaks. For long toroidal distances between probes, the cross-spectrum is concentrated at low frequencies f f f = 13–15 kHz and f ∼ 40 kHz and low wave numbers with a maximum at k = 0. The effects of MHD activity on the LDCs in potential fluctuation are investigated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a6617f447c89e7b5039b737e15d8a989 https://doi.org/10.1088/0029-5515/52/6/063004 Zobrazit plný text záznamu