Plasma-wall interaction and locked modes in the toroidal pinch experiment TPE-RX reversed-field pinch

D. Pasqualini, H. Koguchi, G. Spizzo, Y. Yagi, Y. Hirano, P. Martin, H. Sakakita

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Abstract

The MHD instabilities that sustain the reversed-field pinch (RFP) configuration tend to phase-lock together and also to wall-lock, forming a bulging of the plasma column, called "locked mode". This phenomenon is of particular interest, since the locked mode causes a larger plasma resistivity, plasma cooling, and, in some cases, anomalous discharge termination. Up to now, studies of the locked mode have been focused on m = ] modes (being m the poloidal mode number). In this Letter we show that m = 0 modes also play a role, based on the cross-check between magnetic spectra and toroidally resolved D α array measurements. © 2006 The Physical Society of Japan.
Original languageEnglish
Article number023501
Pages (from-to)-
JournalJournal of the Physical Society of Japan
Volume75
Issue number2
DOIs
Publication statusPublished - Feb 2006
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Pasqualini, D., Koguchi, H., Spizzo, G., Yagi, Y., Hirano, Y., Martin, P., & Sakakita, H. (2006). Plasma-wall interaction and locked modes in the toroidal pinch experiment TPE-RX reversed-field pinch. Journal of the Physical Society of Japan, 75(2), -. [023501]. https://doi.org/10.1143/JPSJ.75.023501