Ideal magnetohydrodynamic stability of the NCSX

G. Y. Fu; M. Isaev; L. P. Ku; M. Mikhailov; M. H. Redi; R. Sanchez; A. Subbotin; W. A. Cooper; S. P. Hirshman; D. A. Monticello; A. Reiman; M. Zarnstorff

doi:10.13182/FST07-A1300

Ideal magnetohydrodynamic stability of the NCSX

G. Y. Fu
, M. Isaev
, L. P. Ku
, M. Mikhailov
, M. H. Redi
, R. Sanchez
, A. Subbotin
, W. A. Cooper
, S. P. Hirshman
, D. A. Monticello
, A. Reiman
, M. Zarnstorff

PPPL Theory

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The ideal magnetohydrodynamic (MHD) stability of the National Compact Stellarator Experiment (NCSX) is extensively analyzed using the most advanced three-dimensional MHD codes. It is shown that the NCSX is stable to finite-n MHD modes, including the vertical mode, external kink modes and ballooning modes. However, high-n external kink modes that peak near the plasma edge are found to be weakly unstable. A global calculation shows that finite-n ballooning modes are significantly more stable than the local infinite-n modes.

Original language	English (US)
Pages (from-to)	218-231
Number of pages	14
Journal	Fusion Science and Technology
Volume	51
Issue number	2
DOIs	https://doi.org/10.13182/FST07-A1300
State	Published - Feb 2007

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Nuclear and High Energy Physics
Nuclear Energy and Engineering
General Materials Science
Mechanical Engineering

Keywords

Ideal magnetohydrodynamic stability
Quasi-axisymmetric stellarators
Stellarators

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10.13182/FST07-A1300

Cite this

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title = "Ideal magnetohydrodynamic stability of the NCSX",

abstract = "The ideal magnetohydrodynamic (MHD) stability of the National Compact Stellarator Experiment (NCSX) is extensively analyzed using the most advanced three-dimensional MHD codes. It is shown that the NCSX is stable to finite-n MHD modes, including the vertical mode, external kink modes and ballooning modes. However, high-n external kink modes that peak near the plasma edge are found to be weakly unstable. A global calculation shows that finite-n ballooning modes are significantly more stable than the local infinite-n modes.",

keywords = "Ideal magnetohydrodynamic stability, Quasi-axisymmetric stellarators, Stellarators",

author = "Fu, \{G. Y.\} and M. Isaev and Ku, \{L. P.\} and M. Mikhailov and Redi, \{M. H.\} and R. Sanchez and A. Subbotin and Cooper, \{W. A.\} and Hirshman, \{S. P.\} and Monticello, \{D. A.\} and A. Reiman and M. Zarnstorff",

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doi = "10.13182/FST07-A1300",

language = "English (US)",

volume = "51",

pages = "218--231",

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T1 - Ideal magnetohydrodynamic stability of the NCSX

AU - Fu, G. Y.

AU - Isaev, M.

AU - Ku, L. P.

AU - Mikhailov, M.

AU - Redi, M. H.

AU - Sanchez, R.

AU - Subbotin, A.

AU - Cooper, W. A.

AU - Hirshman, S. P.

AU - Monticello, D. A.

AU - Reiman, A.

AU - Zarnstorff, M.

PY - 2007/2

Y1 - 2007/2

N2 - The ideal magnetohydrodynamic (MHD) stability of the National Compact Stellarator Experiment (NCSX) is extensively analyzed using the most advanced three-dimensional MHD codes. It is shown that the NCSX is stable to finite-n MHD modes, including the vertical mode, external kink modes and ballooning modes. However, high-n external kink modes that peak near the plasma edge are found to be weakly unstable. A global calculation shows that finite-n ballooning modes are significantly more stable than the local infinite-n modes.

AB - The ideal magnetohydrodynamic (MHD) stability of the National Compact Stellarator Experiment (NCSX) is extensively analyzed using the most advanced three-dimensional MHD codes. It is shown that the NCSX is stable to finite-n MHD modes, including the vertical mode, external kink modes and ballooning modes. However, high-n external kink modes that peak near the plasma edge are found to be weakly unstable. A global calculation shows that finite-n ballooning modes are significantly more stable than the local infinite-n modes.

KW - Ideal magnetohydrodynamic stability

KW - Quasi-axisymmetric stellarators

KW - Stellarators

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UR - https://www.scopus.com/pages/publications/33847751845#tab=citedBy

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DO - 10.13182/FST07-A1300

M3 - Article

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VL - 51

SP - 218

EP - 231

JO - Fusion Science and Technology

JF - Fusion Science and Technology

IS - 2

ER -

Ideal magnetohydrodynamic stability of the NCSX

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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