Effect of collisionality and diamagnetism on the plasma dynamo

  • H. Ji
  • , Y. Yagi
  • , K. Hattori
  • , A. F. Almagri
  • , S. C. Prager
  • , Y. Hirano
  • , J. S. Sarff
  • , T. Shimada
  • , Y. Maejima
  • , K. Hayase

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Fluctuation-induced dynamo electric fields are measured over a wide range of electron collisionality in the edge of TPE-1RM20 reversed-field pinch (RFP). In the collisionless region the magnetohydrodynamic dynamo alone can sustain the parallel current, while in the collisional region a new dynamo mechanism resulting from the fluctuations in the electron diamagnetic drift becomes dominant. A comprehensive picture of the RFP dynamo emerges by combining with earlier results from MST and REPUTE RFPs.

Original languageEnglish (US)
Pages (from-to)1086-1089
Number of pages4
JournalPhysical review letters
Volume75
Issue number6
DOIs
StatePublished - 1995

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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