Evidence for Alfvén eigenmodes driven by alpha particles in D-3He fusion experiments on JET

Kiptily, V.G. and Ben Yaala, M., JET Contributors (2021) Evidence for Alfvén eigenmodes driven by alpha particles in D-3He fusion experiments on JET. Nuclear Fusion, 61 (11). 114006. ISSN 0029-5515 (https://doi.org/10.1088/1741-4326/ac26a2)

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Abstract

Alfvén eigenmodes (AEs) driven by energetic alpha particles can lead to enhanced fast ion transport and losses, thereby degrading the plasma performance in ITER and future magnetic confinement fusion reactors. Unexpectedly, AEs with negative toroidal mode numbers, which are currently not considered for ITER, were observed in dedicated experiments with fusion-born alpha particles on the tokamak Joint European Torus (JET). The paper provides evidence for a complex interplay between fast ions, monster sawtooth crashes and AEs. Our results highlight the need for an improved description of the synergies between different fast ion phenomena in future burning plasmas.

ORCID iDs

Kiptily, V.G. and Ben Yaala, M. ORCID logoORCID: https://orcid.org/0000-0002-6754-0875;
  • Item type:Article
    ID code:86585
    Dates:
    Date
    Event
    12 October 2021
    Published
    14 September 2021
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Engineering > Biomedical Engineering
    Depositing user: Pure Administrator
    Date deposited:29 Aug 2023 14:00
    Last modified:11 Nov 2024 14:04
    URI:https://strathprints.strath.ac.uk/id/eprint/86585
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