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 journalArticle

16 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 - Jan 1 1995

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Ji, H., Yagi, Y., Hattori, K., Almagri, A. F., Prager, S. C., Hirano, Y., Sarff, J. S., Shimada, T., Maejima, Y., & Hayase, K. (1995). Effect of collisionality and diamagnetism on the plasma dynamo. Physical review letters, 75(6), 1086-1089. https://doi.org/10.1103/PhysRevLett.75.1086