MHD stability analysis against pressure and current-driven modes in the SMall Aspect Ratio Tokamak

J. Dominguez-Palacios; M. Garcia-Munoz; M. Toscano-Jimenez; Y.Q. Liu; A. Mancini; D.J. Cruz-Zabala; J.W. Berkery; J.A. Labbate; J. Parisi; Y. Todo; A. Reyner-Viñolas; M. Podestà; E. Viezzer; P. Oyola; S. Futatani

doi:10.1088/1741-4326/ad7fd3

Nuclear Fusion (Jan 2024)

MHD stability analysis against pressure and current-driven modes in the SMall Aspect Ratio Tokamak

J. Dominguez-Palacios,
M. Garcia-Munoz,
M. Toscano-Jimenez,
Y.Q. Liu,
A. Mancini,
D.J. Cruz-Zabala,
J.W. Berkery,
J.A. Labbate,
J. Parisi,
Y. Todo,
A. Reyner-Viñolas,
M. Podestà,
E. Viezzer,
P. Oyola,
S. Futatani

Affiliations

J. Dominguez-Palacios: ORCiD; Department of Atomic, Molecular and Nuclear Physics, University of Seville , Avda. Reina Mercedes, Seville 41012, Spain; Centro Nacional de Aceleradores, University of Seville , Junta de Andalucia CSIC, Avda. Thomas A. Edison 7, Seville 41092, Spain
M. Garcia-Munoz: ORCiD; Department of Atomic, Molecular and Nuclear Physics, University of Seville , Avda. Reina Mercedes, Seville 41012, Spain; Centro Nacional de Aceleradores, University of Seville , Junta de Andalucia CSIC, Avda. Thomas A. Edison 7, Seville 41092, Spain
M. Toscano-Jimenez: Department of Applied Physics III, University of Seville , Camino de los Descubrimientos s/n, Isla de la Cartuja, Seville 41092, Spain
Y.Q. Liu: ORCiD; General Atomics , PO Box 85608, San Diego, CA 92186-5608, United States of America
A. Mancini: Department of Atomic, Molecular and Nuclear Physics, University of Seville , Avda. Reina Mercedes, Seville 41012, Spain; Centro Nacional de Aceleradores, University of Seville , Junta de Andalucia CSIC, Avda. Thomas A. Edison 7, Seville 41092, Spain
D.J. Cruz-Zabala: ORCiD; Department of Atomic, Molecular and Nuclear Physics, University of Seville , Avda. Reina Mercedes, Seville 41012, Spain; Centro Nacional de Aceleradores, University of Seville , Junta de Andalucia CSIC, Avda. Thomas A. Edison 7, Seville 41092, Spain
J.W. Berkery: ORCiD; Princeton Plasma Physics Laboratory, Princeton , NJ, United States of America
J.A. Labbate: University of Maryland , College Park, WA D.C., United States of America
J. Parisi: ORCiD; Princeton Plasma Physics Laboratory, Princeton , NJ, United States of America
Y. Todo: National Institute for Fusion Science , National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
A. Reyner-Viñolas: Department of Atomic, Molecular and Nuclear Physics, University of Seville , Avda. Reina Mercedes, Seville 41012, Spain; Centro Nacional de Aceleradores, University of Seville , Junta de Andalucia CSIC, Avda. Thomas A. Edison 7, Seville 41092, Spain
M. Podestà: Princeton Plasma Physics Laboratory, Princeton , NJ, United States of America
E. Viezzer: ORCiD; Department of Atomic, Molecular and Nuclear Physics, University of Seville , Avda. Reina Mercedes, Seville 41012, Spain; Centro Nacional de Aceleradores, University of Seville , Junta de Andalucia CSIC, Avda. Thomas A. Edison 7, Seville 41092, Spain
P. Oyola: ORCiD; Department of Atomic, Molecular and Nuclear Physics, University of Seville , Avda. Reina Mercedes, Seville 41012, Spain; Centro Nacional de Aceleradores, University of Seville , Junta de Andalucia CSIC, Avda. Thomas A. Edison 7, Seville 41092, Spain
S. Futatani: ORCiD; Universitat Politècnica de Catalunya , Barcelona, Spain

DOI: https://doi.org/10.1088/1741-4326/ad7fd3
Journal volume & issue: Vol. 64, no. 12
p. 126028

Abstract

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Linear magnetohydrodynamic (MHD) simulations for the SMall Aspect Ratio Tokamak (SMART) have been carried out for the first time, for both positive (PT) and negative triangularity (NT) shaped plasmas using the MARS-F code. The MHD stability of projected SMART plasmas against internal kinks, infernal modes and edge peeling-ballooning modes have been analyzed for a wide range of realistic equilibria. A stabilization of internal kinks and infernal modes is observed when increasing the safety factor profile and reducing plasma beta. PT shaped plasmas are more stable against both internal kinks and infernal modes than their counterpart NT shaped plasmas. Toroidal flows have little impact on the MHD stability of the internal kinks, but they have a strong stabilizing effect on infernal modes, which can be further mitigated in NT shaped plasmas. The MHD stability of peeling-ballooning modes is reduced in NT shaped plasmas, as observed in conventional tokamaks.

Published in Nuclear Fusion

ISSN: 0029-5515 (Print); 1741-4326 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Physics: Nuclear and particle physics. Atomic energy. Radioactivity
Website: https://iopscience.iop.org/journal/0029-5515

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