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

被引:3
|
作者
Pasqualini, D
Koguchi, H
Spizzo, G
Yagi, Y
Hirano, Y
Martin, P
Sakakita, H
机构
[1] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy
[2] Natl Inst Adv Ind Sci & Technol, Plasma Frontier Res Grp, Energy Technol Res Inst, Tsukuba, Ibaraki 3058568, Japan
[3] EURATOM, ENEA Assoc, Consorzio RFX, I-35127 Padua, Italy
关键词
reversed-field pinch (RFP); plasma-wall interaction; MHD; phase locking; locked mode; radiation emission measurements;
D O I
10.1143/JPSJ.75.023501
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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 in = I modes (being in the poloidal mode number). In this Letter we show that in = 0 modes also play a role, based on the cross-check between magnetic spectra and toroidally resolved D, array measurements.
引用
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页数:4
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