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Effects of the Magnetic Curvature on the Resistive Interchange Mode in Tokamak Plasmas
Author(s) -
Peng X.D.,
Zhang J.H.,
Liu C.G.
Publication year - 2000
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/1521-3986(200006)40:3/4<419::aid-ctpp419>3.0.co;2-m
Subject(s) - tokamak , magnetohydrodynamics , curvature , physics , plasma , instability , toroid , resistive touchscreen , magnetic field , mechanics , plasma stability , magnetic confinement fusion , computational physics , nuclear physics , geometry , mathematics , quantum mechanics , electrical engineering , engineering
The reduced magneto‐hydro‐dynamical (MHD) equations show that the pressure gradient together with the magnetic‐field curvature as a force drives the plasma short‐wavelength MHD instability in a toroidal system. This paper discusses the role of magnetic curvature of tokamak plasmas in some detail. It is found that the region of bad magnetic curvature is enlarged due to the presence of poloidal magnetic curvature. Especially, there exists a strong MHD instability in the upside or the downside of tokamak.