Local transport dynamics of cold pulses in tokamak plasmas
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41614_2022_Article_71.pdf
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Author(s)
Rodriguez-Fernandez, P.
Angioni, C.
White, A. E.
Date Issued
May 2022
Journal
Review of Modern Plasma Physics
Publisher
Springer Science and Business Media LLC
Citation
Reviews of Modern Plasma Physics. 2022 May 11;6(1):10
Version
Final published version
Abstract
Abstract
For over two decades, our fundamental understanding of energy transport dynamics in the core of tokamak plasmas had been challenged by the striking observation of temperature perturbation reversals following the injection of cold pulses at the plasma edge. These phenomena were first discovered by Gentle et al. (Phys. Rev. Lett. 74(18):3620–3623, 1995) in 1995 and had long been suggested to be evidence of nonlocal transport effects. In recent years, a new explanation to these phenomena has emerged, fully consistent with the theory of turbulent transport in magnetized plasmas and in remarkable agreement with experiment. This article reviews the experimental observation of temperature reversals in tokamak plasmas and presents the explanation based on local transport physics.
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Terms of Use
Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1007/s41614-022-00071-7
