RT Journal Article T1 3D effects on transport and plasma control in the TJ-II stellarator A1 Castejón, F. A1 Bustos Molina, Andrés de A1 García Gonzalo, Luis A1 Liu, Bing A1 Martínez, M. AB The effects of 3D geometry are explored in TJ-II from two relevant points of view: neoclassical transport and modification of stability and dispersion relation of waves. Particle fuelling and impurity transport are studied considering the 3D transport properties, paying attention to both neoclassical transport and other possible mechanisms. The effects of the 3D magnetic topology on stability, confinement and Alfven Eigenmodes properties are also explored, showing the possibility of controlling Alfven modes by modifying the configuration; the onset of modes similar to geodesic acoustic modes are driven by fast electrons or fast ions; and the weak effect of magnetic well on confinement. Finally, we show innovative power exhaust scenarios using liquid metals. PB IOP Science SN 0029-5515 YR 2017 FD 2017-10 LK https://hdl.handle.net/10016/38512 UL https://hdl.handle.net/10016/38512 LA eng NO This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Comission. This work has been also funded by the Spanish Ministerio de Economía y Competitividad under Projects ENE2013-48109-P, ENE2013-48679-R, ENE2014-52174-P, ENE2014-58918-R, ENE2014-56517-R, ENE2014-56517-R, ENE2015-64914-C3-1-R, ENE2015-70142-P. Research and data analysis done by Kurchatov team (chapters 2, 3 and 7) were funded by Russian Science Foundation, Project 14-22-00193. The work of AVM was partly supported by the Competitiveness Program of NRNU MEPhI. DS e-Archivo RD 1 sept. 2024