Nonlinear dynamics of kink-tearing modes and their interaction with the current profiles in a reversed-field pinch

Journal Article · Thu Dec 01 00:00:00 EST 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870873· OSTI ID:6640395

Nordlund, P; Mazur, S ^[1]

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1. The Alfven Laboratory, Fusion Plasma Physics Division, Royal Institute of Technology, S-100 44 Stockholm (Sweden)

New insight in the nonlinear and quasilinear dynamics of kink-tearing modes in reversed-field pinches (RFP's) is obtained by simultaneous measurements of the evolution of current profiles and associated [ital m]=1 helical mode spectra in the Extrap T1 RFP [Nucl. Fusion [bold 34], 427 (1994)]. Results concerning near single helicity states, [ital m]=0 mediated [ital m]=1 spectral broadening and cascade, together with the associated relaxation dynamics, are reported. The role of phase locking, between the nonlinearly interacting modes, in the pinch dynamics is also discussed.

• OSTI ID: 6640395
• Journal Information: Physics of Plasmas; (United States), Vol. 1:12; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
REVERSE-FIELD PINCH
KINK INSTABILITY
TEARING INSTABILITY
HELICITY
MAGNETOHYDRODYNAMICS
PINCH EFFECT
PLASMA CONFINEMENT
RELAXATION
CONFINEMENT
FLUID MECHANICS
HYDRODYNAMICS
INSTABILITY
MECHANICS
PARTICLE PROPERTIES
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
700340* - Plasma Waves
Oscillations
& Instabilities- (1992-)
700310 - Plasma Confinement- (1992-)