Distorted magnetic island formation during slowing down to mode locking in helical plasmas

The LHD Experiment Group

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2 Citations (Scopus)

Abstract

We report the first observation of the formation of a magnetic island before the occurrence of mode locking in helical plasma. New analysis and observation techniques applied to the ECE signal and poloidal flow in LHD experiments yield the following results. (i) A magnetic island structure is present, rotating at the end of the rotating phase. (ii) The rotation speed of the island is not uniform in space and time. The rotation of the island changes significantly at the end of the rotating phase, and the deformation increases until the mode is locked.

Original languageEnglish
Article number076003
JournalNuclear Fusion
Volume57
Issue number7
DOIs
Publication statusPublished - May 12 2017

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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