Self-similar current decay experiment in RFX-mod

Paolo Zanca

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4 Citations (Scopus)

Abstract

The self-similar current decay (SSCD) has been suggested as a promising operation for reversed field pinch devices by numerical simulations, which show a decrease in modes amplitude and stochasticity when the magnetic field is forced to decay at a suitable rate at a fixed radial profile (Nebel et al 2002 Phys. Plasmas 9 4968). The first experimental test of SSCD has recently been performed in RFX-mod. An initial fast decrease in the mode amplitudes (about 40% of the initial value) is observed. After that, a regime characterized by transient states close to the single-helicity condition (Cappello and Paccagnella 1992 Phys. Fluids B 4 611, Finn et al 1992 Phys. Fluids B 4 1262) is established. This brings about a 50% increase in the global confinement parameters. © 2007 IOP Publishing Ltd.
Original languageEnglish
Article number002
Pages (from-to)113 - 118
Number of pages6
JournalPlasma Physics and Controlled Fusion
Volume49
Issue number2
DOIs
Publication statusPublished - 1 Feb 2007
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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