Measurement of the Hall dynamo effect during magnetic reconnection in a high-temperature plasma

W. X. Ding, D. L. Brower, D. Craig, B. H. Deng, G. Fiksel, V. Mirnov, S. C. Prager, J. S. Sarff, V. Svidzinski

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

The current density fluctuation and magnetic field fluctuation spatial profile were discussed in a high-temperature plasma by using a fast laser-based Faraday rotation diagnostic. It was observed that these fluctuations had characteristics consistent with expectations for resistive tearing modes. The Hall dynamo effect was found to be significant, redistributing (flattening) the equilibrium core current near the resonant surface during a reconnection event. The results suggested that the effects beyond single-fluid magnetohydrodynamics (MHD) were important for the dynamo and magnetic reconnection.

Original languageEnglish (US)
Pages (from-to)45002-45001
Number of pages2
JournalPhysical review letters
Volume93
Issue number4
DOIs
StatePublished - Jul 23 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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