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Frequency and plasma condition dependent spatial structure of low frequency global potential oscillations in the TJ-II stellarator
- Publication Year :
- 2021
-
Abstract
- In this letter, we investigate the spatial structure of a low frequency global potential oscillation, which is likely ascribed as the low frequency zonal flows, in TJ-II laboratory plasmas. In two plasmas produced by different heating schemes (electron cyclotron resonance heating and neutral beam injection heating) and characterized by different mean radial electric field structures, frequency-space-decomposed spectra of the global potential oscillation are obtained. In both cases, the oscillatory field has a single-peaked potential structure and a dipole radial electric field structure. The oscillating structure depends on its frequency as well as on the heating scheme.<br />source:Citation T. Kobayashi et al 2019 Nucl. Fusion 59 044006<br />source:https://doi.org/10.1088/1741-4326/ab0122<br />identifier:0000-0001-5669-1937
Details
- Database :
- OAIster
- Notes :
- English
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1375193240
- Document Type :
- Electronic Resource