RT Journal Article
T1 Overview of recent TJ-II stellarator results
A1 Ascasibar, Enrique
A1 Alba, D.
A1 Alegre Castro, Daniel
A1 Alonso Poza, Alberto
A1 Alonso Gonzalez, Javier
A1 Aragón, F. de
A1 Baciero, Alfonso
A1 Barcala Riveira, Jose Miguel
A1 Blanco, E.
A1 Botija, J.
A1 Bueno Gallardo, Leticia
A1 Cabrera, S.
A1 Cal, E. de la
A1 Calvo, Iván
A1 Cappa, Alvaro
A1 Carralero, D.
A1 Carrasco Perea, Raquel
A1 Carreras Verdaguer, Benjamin A.
A1 Castejon Mochon, Jose Francisco
A1 Castro, R.
A1 Castro, Alfonso de
A1 Catalan, G.
A1 Chmyga, A. A.
A1 Chamorro, M.
A1 Cooper, Wilfred Anthony
A1 Dinklage, Andreas
A1 Eliseev, Leonid
A1 Estrada, Teresa
A1 Ezzat, M.
A1 Fernández Marina, F.
A1 Fontdecaba Climent, Jose Maria
A1 Garcia Gonzalez, Leandro
A1 Garcia Gonzalo, Luis
A1 Garcia Cortes, Maria Isabel
A1 Garcia Gomez, R.
A1 Garcia Regaña, Jose Manuel
A1 Gonzalez Jerez, A.
A1 Grenfell, G.
A1 Guasp, J.
A1 Hernandez Sanchez, J.
A1 Hernanz Vila, Julio
A1 Hidalgo, Carlos
A1 Hollmann, Eric Matthias
A1 Jimenez Denche, A.
A1 Khabanov, Philipp
A1 Kharchev, N.
A1 Kirpitchev, I.
A1 Kleiber, R.
A1 Kozachek, A. S.
A1 Krupnik, L.
A1 Lapayese, F.
A1 Liniers, M.
A1 Liu, B.
A1 Lopez Bruna, Daniel
A1 Lopez Fraguas, A.
A1 Lopez-Miranda, B
A1 Lopez Razola, J.
A1 Losada, U.
A1 Luna, Elena de la
A1 Martín de Aguilera, A.
A1 Martin-Diaz, F.
A1 Martinez Fuentes, M.
A1 Martin Gomez, G.
A1 Martin Rojo, Ana Belen
A1 Martinez-Fernandez, J.
A1 Mccarthy, Kieran Joseph
A1 Medina, F.
A1 Medrano, M.
A1 Melon, L.
A1 Melnikov, A. V.
A1 Mendez, P.
A1 Merino, R.
A1 Miguel, F. J.
A1 Van Milligen, Boudewijn
A1 Molinero, A
A1 Momo, Barbara
A1 Monreal, P.
A1 Mulas, S.
A1 Narushima, Y.
A1 Navarro Dongil, Matilde
A1 Ochando, Maria A.
A1 Ohshima, Shinsuke
A1 Olivares, J.
A1 Oyarzabal, E.
A1 Pablos, Jose Luis de
A1 Pacios, L.
A1 Panadero, N.
A1 Parra, Félix I.
A1 Pastor, Ignacio
A1 Peña Gomez, Ángel de la
A1 Pereira, A.
A1 Pinzon, J. R.
A1 Portas, A. B.
A1 Poveda, E.
A1 Quintana, J. A.
A1 Ramos Lopez, Francisco Javier
A1 Ratta, G. A.
A1 Redondo Escudero, Miriam
A1 Rincon, E.
A1 Rios, L.
A1 Rodriguez Fernandez, C.
A1 Rodriguez Rodrigo, L.
A1 Rojo, B.
A1 Ros, A.
A1 Rosa, E.
A1 Sanchez Moreno, Esteban
A1 Sanchez Aguilar, Javier
A1 Sanchez Dafauce, Mario
A1 Sanchez Sarabia, E.
A1 Satake, S.
A1 Sebastian, J. A.
A1 Sharma, R.
A1 Silva, C.
A1 Solano, Emilia R.
A1 Soleto, A.
A1 Sun, B. J.
A1 Tabares, Francisco L.
A1 Tafalla, David
A1 Takahashi, H.
A1 Tamura, N.
A1 Tolkachev, A.
A1 Vega, J.
A1 Velasco, G.
A1 Velasco, Jose Luis
A1 Yamamoto, S.
A1 Zurro, B.
AB The main results obtained in the TJ-II stellarator in the last two years are reported. The most important topics investigated have been modelling and validation of impurity transport, validation of gyrokinetic simulations, turbulence characterisation, effect of magnetic configuration on transport, fuelling with pellet injection, fast particles and liquid metal plasma facing components. As regards impurity transport research, a number of working lines exploring several recently discovered effects have been developed: the effect of tangential drifts on stellarator neoclassical transport, the impurity flux driven by electric fields tangent to magnetic surfaces and attempts of experimental validation with Doppler reflectometry of the variation of the radial electric field on the flux surface. Concerning gyrokinetic simulations, two validation activities have been performed, the comparison with measurements of zonal flow relaxation in pellet-induced fast transients and the comparison with experimental poloidal variation of fluctuations amplitude. The impact of radial electric fields on turbulence spreading in the edge and scrape-off layer has been also experimentally characterized using a 2D Langmuir probe array. Another remarkable piece of work has been the investigation of the radial propagation of small temperature perturbations using transfer entropy. Research on the physics and modelling of plasma core fuelling with pellet and tracer-encapsulated solid-pellet injection has produced also relevant results. Neutral beam injection driven Alfvénic activity and its possible control by electron cyclotron current drive has been examined as well in TJ-II. Finally, recent results on alternative plasma facing components based on liquid metals are also presented
PB IOP Publishing
SN 0029-5515
YR 2019
FD 2019-07-24
LK https://hdl.handle.net/10016/35063
UL https://hdl.handle.net/10016/35063
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.  It has been partially funded by the Ministerio de Ciencia, Inovación y Universidades of Spain under projects ENE2013-48109-P, ENE2015-70142-P and FIS2017-88892-P. It has also received funds from the Spanish Government via mobility grant PRX17/00425. The authors thankfully acknowledge the computer resources at MareNostrum and the technical support provided by the Barcelona S.C. It has been supported as well by The Science and Technology Center in Ukraine (STCU), Project P-507F.
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RD 1 sept. 2024