Artículo
Role of the edge electric field in the resonant mode-particle interactions and the formation of transport barriers in toroidal plasmas
Autor/es | Anastassiou, Giorgos
Zestanakis, Panagiotis Antonenas, Yiannis Viezzer, Eleonora Kominis, Yannis |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2024-06 |
Fecha de depósito | 2024-07-15 |
Publicado en |
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Resumen | The impact of an edge radial electric field on the particle orbits and the orbital spectrum in an axisymmetric toroidal magnetic equilibrium is investigated using a guiding centre canonical formalism. Poloidal and ... The impact of an edge radial electric field on the particle orbits and the orbital spectrum in an axisymmetric toroidal magnetic equilibrium is investigated using a guiding centre canonical formalism. Poloidal and bounce/transit-averaged toroidal precession frequencies are calculated, highlighting the role of the radial electric field. The radial electric field is shown to drastically modify the resonance conditions between particles with certain kinetic characteristics and specific perturbative non-axisymmetric modes, and to enable the formation of transport barriers. The locations of the resonances and the transport barriers that determine the particle, energy and momentum transport are shown to be accurately pinpointed in the phase space by employing the calculated orbital frequencies. |
Agencias financiadoras | EUROfusion Consortium European Research Council (ERC) |
Identificador del proyecto | 101052200 EUROfusion
H2020 805162 |
Cita | Anastassiou, G., Zestanakis, P., Antonenas, Y., Viezzer, E. y Kominis, Y. (2024). Role of the edge electric field in the resonant mode-particle interactions and the formation of transport barriers in toroidal plasmas. Journal of Plasma Physics, 90 (1), 905900110. https://doi.org/10.1017/S0022377824000047. |
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role-of-the-edge-electric-field.pdf | 5.754Mb | [PDF] | Ver/ | |