Presentation
Impact of ICRF fast-ions on core turbulence and MHD activity in ASDEX upgrade
Author/s | Bilato, A.
Angioni, C. Bañón Navarro, A. Bobkov, V. Bosman, T. Di Siena, A. Fable, E. Galdón Quiroga, Joaquín ![]() ![]() ![]() ![]() ![]() ![]() Hidalgo Salaverri, Javier Rueda Rueda, José Weiland, M. |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2023-08-18 |
Deposit Date | 2024-05-21 |
Published in |
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ISBN/ISSN | 0094-243X 1551-7616 |
Abstract | Experiments in various tokamaks and their analysis identify the fast ions (FI) generated by NBI and/or ICRF heating as one of the main causes of the observed improvement in core confinement: fast ions can reduce core ... Experiments in various tokamaks and their analysis identify the fast ions (FI) generated by NBI and/or ICRF heating as one of the main causes of the observed improvement in core confinement: fast ions can reduce core microturbulence (mainly Ion-Temperature-Gradient (ITG) driven modes) either electrostatically or electromagnetically, or they can resonate with fishbones and high-frequency Alfvén modes, which in turn contribute in stabilizing ITG. In this perspective, we discuss recent experiments done on ASDEX Upgrade (AUG) where ICRF is the main actuator for FI generation for energies above 100 keV. Additionally, ICRF-FIs can substantially impact the MHD activity and its consequent effects on fast ion losses (FILs) and ion-cyclotron emission (ICE). We present dedicated AUG experiments with NBI-D further accelerated by ICRF. |
Funding agencies | Ministerio de Ciencia e Innovación (MICIN). España EUROfusion Consortium |
Project ID. | FJC2019-041092-I
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Citation | Bilato, A., Angioni, C., Bañón Navarro, A., Bobkov, V., Bosman, T., Di Siena, A.,...,Weiland, M. (2023). Impact of ICRF fast-ions on core turbulence and MHD activity in ASDEX upgrade. En 24th Topical Conference on Radio-frequency Power in Plasmas (030010-), Annapolis, Maryland, United States: AIP Conference Proceedings. |
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Impact of ICRF.pdf | 2.689Mb | ![]() | View/ | Versión publicada |