Nonlinear dynamics of kink-tearing modes and their interaction with the current profiles in a reversed-field pinch
- 1 December 1994
- journal article
- Published by AIP Publishing in Physics of Plasmas
- Vol. 1 (12) , 4032-4042
- https://doi.org/10.1063/1.870873
Abstract
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 m=1 helical mode spectra in the Extrap T1 RFP [Nucl. Fusion 34, 427 (1994)]. Results concerning near single helicity states, m=0 mediated 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.Keywords
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