3D effects on transport and plasma control in the TJ-II stellarator

F. Castejón, D. Alegre, A. Alonso, J. Alonso, E. Ascasíbar, A. Baciero, A. De Bustos, D. Baiao, J.M. Barcala, E. Blanco, M. Borchardt, J. Botija, S. Cabrera, E. De La Cal, I. Calvo, A. Cappa, R. Carrasco, R. Castro, A. De Castro, G. CatalánA.A. Chmyga, M. Chamorro, A. Dinklage, L. Eliseev, T. Estrada, F. Fernández-Marina, J.M. Fontdecaba, L. García, I. García-Cortés, R. García-Gómez, J.M. García-Regaña, J. Guasp, R. Hatzky, J. Hernanz, J. Hernández, J. Herranz, C. Hidalgo, E. Hollmann, A. Jiménez-Denche, I. Kirpitchev, R. Kleiber, A.D. Komarov, A.S. Kozachoek, L. Krupnik, F. Lapayese, M. Liniers, B. Liu, D. López-Bruna, A. López-Fraguas, B. López-Miranda, J. López-Razola, U. Losada, E. De La Luna, A. Martín De Aguilera, F. Martín-Díaz, M. Martínez, G. Martín-Gómez, F. Martín-Hernández, A.B. Martín-Rojo, J. Martínez-Fernández, K.J. McCarthy, F. Medina, M. Medrano, L. Melón, A.V. Melnikov, P. Méndez, R. Merino, F.J. Miguel, B. Van Milligen, A. Molinero, B. Momo, P. Monreal, R. Moreno, M. Navarro, Y. Narushima, I.S. Nedzelskiy, M.A. Ochando, J. Olivares, E. Oyarzábal, J.L. De Pablos, L. Pacios, N. Panadero, I. Pastor, M.A. Pedrosa, A. De La Peña, A. Pereira, A. Petrov, S. Petrov, A.B. Portas, E. Poveda, G.A. Rattá, E. Rincón, L. Ríos, C. Rodríguez, B. Rojo, A. Ros, J. Sánchez, M. Sánchez, E. Sánchez, E. Sánchez-Sarabia, K. Sarksian, S. Satake, J.A. Sebastián, C. Silva, E.R. Solano, A. Soleto, B.J. Sun, F.L. Tabarés, D. Tafalla, S. Tallents, A. Tolkachev, J. Vega, G. Velasco, J.L. Velasco, G. Wolfers, M. Yokoyama, B. Zurro

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Abstract

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 Alfvén Eigenmodes properties are also explored, showing the possibility of controlling Alfvén 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.
Original languageEnglish
Article number102022
Pages (from-to)-
JournalNuclear Fusion
Volume57
Issue number10
DOIs
Publication statusPublished - 9 Aug 2017
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Castejón, F., Alegre, D., Alonso, A., Alonso, J., Ascasíbar, E., Baciero, A., De Bustos, A., Baiao, D., Barcala, J. M., Blanco, E., Borchardt, M., Botija, J., Cabrera, S., De La Cal, E., Calvo, I., Cappa, A., Carrasco, R., Castro, R., De Castro, A., ... Zurro, B. (2017). 3D effects on transport and plasma control in the TJ-II stellarator. Nuclear Fusion, 57(10), -. [102022]. https://doi.org/10.1088/1741-4326/aa7691