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.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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), -. . https://doi.org/10.1143/JPSJ.75.023501