Review of confinement and transport studies in the TJ-II flexible heliac

• Published in: Nuclear fusion 2001-10, Vol.41 (10), p.1449-1457
• Main Authors: Alejaldre, C, Almoguera, L, Alonso, J, Ascasíbar, E, Baciero, A, Balbín, R, Blaumoser, M, Botija, J, Brañas, B, Cal, E. de la, Cappa, A, Carrasco, R, Castejón, F, Castellano, J, Cepero, J.R, Cremy, C, Doncel, J, Eguilior, S, Estrada, T, Fernández, A, Fuentes, C, García, A, García-Cortés, I, Guasp, J, Herranz, J, Hidalgo, C, Jiménez, J.A, Kirpitchev, I, Krivenski, V, Labrador, I, Lapayese, F, Likin, K, Liniers, M, López-Fraguas, A, López-Sánchez, A, Luna, E. de la, Martín, R, Martínez-Laso, L, McCarthy, K.J, Medina, F, Medrano, M, Méndez, P, Milligen, B. van, Ochando, M, Pacios, L, Pastor, I, Pedrosa, M.A, Peña, A. de la, Portas, A, Qin, J, Rodríguez-Rodrigo, L, Romero, J, Salas, A, Sánchez, E, Sánchez, J, Tabarés, F, Tafalla, D, Tribaldos, V, Vega, J, Zurro, B
• Format: Article
• Language: English
• Subjects: Electric lines; Exact sciences and technology; Fluctuation and chaos phenomena; Fluctuation phenomena; Helium; Hydrogen fuels; Magnetic confinement and equilibrium; Physics; Physics of gases, plasmas and electric discharges; Physics of plasmas and electric discharges; Plasma confinement; Plasma heating (beam injection, radio-frequency and microwave, ohmic, icr, ecr and current drive heating); Plasma production and heating; Plasma properties; Shear flow; Stellarators, spheromaks, compact tori, bumpy tori, and other toroidal confinement devices; Stellarators, torsatrons, heliacs, bumpy tori, and other toroidal confinement devices; Thermal conductivity; Transport properties; Turbulence
• ISSN: 0029-5515; 1741-4326
• DOI: 10.1088/0029-5515/41/10/312

TJ-II is a four period, low magnetic shear stellarator (R = 1.5 m, a < 0.22 m, B sub(0) less than or equal to 1.2 T) which was designed to have a high degree of magnetic configuration flexibility. In the most recent experimental campaign, coupling of the full ECRH power (P sub(ECRH) less than or equal to 600 kW) to the plasma has been possible using two ECRH transmission lines which have different power densities. Both helium and hydrogen fuelled plasmas have been investigated. The article reviews the latest physics results in particle control, configuration effects, and transport and fluctuation studies.