Current profile control by alternating current magnetic helicity injection

F. Ebrahimi, S. C. Prager

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

The current profile control by alternating current (ac) magnetic helicity injection in a reversed field pinch (RFP) was analyzed. The oscillating field current drive (OFCD), which is a form of ac magnetic helicity injection, was used in the study that employed 3-d resistive magnetohydrodynamic (MHD) computation. It was observed that OFCD could control the current density profile in an oscillatory steady-state, leading to a significant reduction in magnetic fluctuations. The OFCD current profile control was also found to inject magnetic helicity over a cycle and sustained a portion of the total plasma current.

Original languageEnglish (US)
Pages (from-to)2014-2025
Number of pages12
JournalPhysics of Plasmas
Volume11
Issue number5 PART 1
DOIs
StatePublished - May 1 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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