Impact of ICRF fast-ions on core turbulence and MHD activity in ASDEX upgrade

A. Bilato; C. Angioni; A. Bañón Navarro; V. Bobkov; T. Bosman; A. Di Siena; E. Fable; R. Fischer; J. Galdon-Quiroga; T. Görler; J. Hidalgo-Salaverri; F. Jenko; T. Johnson; Ye O. Kazakov; O. Kudlacek; J. Manyer; M. Mantsinen; R. Ochoukov; E. Poli; J. Rueda-Rueda; P. A. Schneider; S. Sipilä; W. Tierens; M. Usoltseva; M. Weiland

doi:10.1063/5.0163029

Impact of ICRF fast-ions on core turbulence and MHD activity in ASDEX upgrade

A. Bilato, C. Angioni, A. Bañón Navarro, V. Bobkov, T. Bosman, A. Di Siena, E. Fable, R. Fischer, J. Galdon-Quiroga, T. Görler, J. Hidalgo-Salaverri, F. Jenko, T. Johnson, Ye O. Kazakov, O. Kudlacek, J. Manyer, M. Mantsinen, R. Ochoukov, E. Poli, J. Rueda-RuedaP. A. Schneider, S. Sipilä, W. Tierens, M. Usoltseva, M. Weiland

Research output: Contribution to journal › Conference article › peer-review

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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 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.

Original language	English
Article number	030010
Journal	AIP Conference Proceedings
Volume	2984
Issue number	1
DOIs	https://doi.org/10.1063/5.0163029
State	Published - Aug 18 2023
Externally published	Yes
Event	24th Topical Conference on Radio-frequency Power in Plasmas - Annapolis, United States Duration: Sep 26 2022 → Sep 28 2022

Funding

This work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No 101052200 — EUROfusion). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them. We wish to acknowledge M. Bergmann, M. Brambilla, P. David, R. Mc Dermott, Ph. Lauber, U. Plank, M. Reisner, S. Sharapov, G. Staebler, G. Tardini, E. Viezzer, B. Zimmermann, and to thank A. Kappatou, E. Tsitrone and A. Hakola for their kind support. J. Galdon-Quiroga acknowledges funding from the Spanish Ministry of Science and Innovation under grant no. FJC2019-041092-I. See the author list of U. Stroth et al. 2022 Nucl. Fusion 62 042006 for the ASDEX Upgrade Team; see the author list of B. Labit et al. 2019 Nucl. Fusion 59 086020 for the EUROfusion MST1 team.

Funders	Funder number
European Commission	101052200 — EUROfusion
Ministerio de Ciencia e Innovación	FJC2019-041092-I

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Bilato, A., Angioni, C., Navarro, A. B., Bobkov, V., Bosman, T., Di Siena, A., Fable, E., Fischer, R., Galdon-Quiroga, J., Görler, T., Hidalgo-Salaverri, J., Jenko, F., Johnson, T., Kazakov, Y. O., Kudlacek, O., Manyer, J., Mantsinen, M., Ochoukov, R., Poli, E., ... Weiland, M. (2023). Impact of ICRF fast-ions on core turbulence and MHD activity in ASDEX upgrade. AIP Conference Proceedings, 2984(1), Article 030010. https://doi.org/10.1063/5.0163029

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title = "Impact of ICRF fast-ions on core turbulence and MHD activity in ASDEX upgrade",

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 microturbulence (mainly Ion-Temperature-Gradient (ITG) driven modes) either electrostatically or electromagnetically, or they can resonate with fishbones and high-frequency Alfv{\'e}n 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.",

author = "A. Bilato and C. Angioni and Navarro, {A. Ba{\~n}{\'o}n} and V. Bobkov and T. Bosman and {Di Siena}, A. and E. Fable and R. Fischer and J. Galdon-Quiroga and T. G{\"o}rler and J. Hidalgo-Salaverri and F. Jenko and T. Johnson and Kazakov, {Ye O.} and O. Kudlacek and J. Manyer and M. Mantsinen and R. Ochoukov and E. Poli and J. Rueda-Rueda and Schneider, {P. A.} and S. Sipil{\"a} and W. Tierens and M. Usoltseva and M. Weiland",

note = "Publisher Copyright: {\textcopyright} 2023 Author(s).; 24th Topical Conference on Radio-frequency Power in Plasmas ; Conference date: 26-09-2022 Through 28-09-2022",

year = "2023",

month = aug,

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doi = "10.1063/5.0163029",

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Bilato, A, Angioni, C, Navarro, AB, Bobkov, V, Bosman, T, Di Siena, A, Fable, E, Fischer, R, Galdon-Quiroga, J, Görler, T, Hidalgo-Salaverri, J, Jenko, F, Johnson, T, Kazakov, YO, Kudlacek, O, Manyer, J, Mantsinen, M, Ochoukov, R, Poli, E, Rueda-Rueda, J, Schneider, PA, Sipilä, S, Tierens, W, Usoltseva, M & Weiland, M 2023, 'Impact of ICRF fast-ions on core turbulence and MHD activity in ASDEX upgrade', AIP Conference Proceedings, vol. 2984, no. 1, 030010. https://doi.org/10.1063/5.0163029

TY - JOUR

T1 - Impact of ICRF fast-ions on core turbulence and MHD activity in ASDEX upgrade

AU - Bilato, A.

AU - Angioni, C.

AU - Navarro, A. Bañón

AU - Bobkov, V.

AU - Bosman, T.

AU - Di Siena, A.

AU - Fable, E.

AU - Fischer, R.

AU - Galdon-Quiroga, J.

AU - Görler, T.

AU - Hidalgo-Salaverri, J.

AU - Jenko, F.

AU - Johnson, T.

AU - Kazakov, Ye O.

AU - Kudlacek, O.

AU - Manyer, J.

AU - Mantsinen, M.

AU - Ochoukov, R.

AU - Poli, E.

AU - Rueda-Rueda, J.

AU - Schneider, P. A.

AU - Sipilä, S.

AU - Tierens, W.

AU - Usoltseva, M.

AU - Weiland, M.

PY - 2023/8/18

Y1 - 2023/8/18

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85177031470&partnerID=8YFLogxK

U2 - 10.1063/5.0163029

DO - 10.1063/5.0163029

M3 - Conference article

AN - SCOPUS:85177031470

SN - 0094-243X

VL - 2984

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

IS - 1

M1 - 030010

T2 - 24th Topical Conference on Radio-frequency Power in Plasmas

Y2 - 26 September 2022 through 28 September 2022

ER -

Impact of ICRF fast-ions on core turbulence and MHD activity in ASDEX upgrade

Abstract

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UN SDGs

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