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http://arks.princeton.edu/ark:/88435/dsp0170795b055| Title: | Observation of quasi-coherent edge fluctuations in Ohmic plasmas on NSTX |
| Contributors: | Banerjee, S. A. Diallo S.J. Zweben U. S. Department of Energy contract number DE-AC02-09CH11466 |
| Keywords: | Turbulence |
| Issue Date: | Apr-2016 |
| Publisher: | Princeton Plasma Physics Laboratory, Princeton University |
| Related Publication: | Physics of Plasmas, vol. 23, p. 044502, April 2016 |
| Abstract: | A quasi-coherent mode with frequency f = 40 kHz is observed in Ohmic plasmas in NSTX with the gas puff imaging diagnostic (GPI). This mode is located predominantly just inside the separatrix, with a maximum fluctuation amplitude similar to that of the broadband turbulence in the same frequency range. The quasi-coherent mode has a poloidal wavelength 16 cm and a poloidal velocity 49 km/s in the electron diamagnetic direction, which are similar to the characteristics expected from a linear drift-wave like mode in the edge. |
| URI: | http://arks.princeton.edu/ark:/88435/dsp0170795b055 |
| Referenced By: | doi: 10.1063/1.4946871 |
| Appears in Collections: | NSTX |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Bannerjee.h5 | 57.06 MB | Unknown | View/Download | |
| readme.txt | 2.72 kB | Text | View/Download |
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