Measurement of Internal Magnetic Field Fluctuations in a Reversed-Field Pinch by Faraday Rotation

W. X. Ding, D. L. Brower, S. D. Terry, D. Craig, S. C. Prager, J. S. Sarff, J. C. Wright

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Magnetic field fluctuations (and the associated current perturbation) have been measured in the core of a high-temperature reversed-field pinch using a newly developed fast-polarimetry system. Radial magnetic field fluctuation levels of [Formula presented] are measured in standard-reversed-field pinch discharges which increase to [Formula presented] during the sawtooth crash (enhanced dynamo). The fluctuation level is reduced fourfold for high-confinement plasmas where the core-resonant tearing modes are suppressed.

Original languageEnglish (US)
Number of pages1
JournalPhysical review letters
Volume90
Issue number3
DOIs
StatePublished - Jan 1 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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