Nuclear Fushion | |
MHD stability of negative triangularity DIII-D plasmas | |
article | |
W. Boyes1  F. Turco1  J. Hanson1  A. Marinoni2  A. Turnbull3  M. Austin4  G. Navratil1  | |
[1] Department of Applied Physics and Applied Mathematics, Columbia University;Plasma Science and Fusion Center, Massachusetts Institute of Technology;General Atomics;The University of Texas at Austin | |
关键词: MHD; scenarios; negative triangularity; tearing modes; | |
DOI : 10.1088/1741-4326/acd564 | |
来源: Institute of Physics Publishing Ltd. | |
【 摘 要 】
Negative triangularity (NT) experiments in DIII-D point to an emergent reactor scenario free of sawteeth, endowed with benign, nondisruptiven= 2 tearing modes, which experienceq mingeqslant1 similar to the positive triangularity hybrid scenario. Plasmas exhibiting this behavior attain3$" align="top">{beta _{ext{N}}} > 3 , high enough to reconsider long held views of NT stability. Ideal MHD and tearing stability analysis of well-diagnosed equilibrium reconstructions of experimental hybrid-like plasmas predict that among shape parameters, MHD stability limits are only sensitive to average triangularity. Operation is predicted to be possible at {beta _{ext{N}}}relevant to upcoming tokamaks and commercial NT reactors.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO202307170000740ZK.pdf | 10665KB | download |