Observation of quasi-coherent edge fluctuations in Ohmic plasmas on NSTX

Banerjee, S.; A. Diallo; S.J. Zweben
Issue date: April 2016
Cite as:
Banerjee, S., A. Diallo, & S.J. Zweben. (2016). Observation of quasi-coherent edge fluctuations in Ohmic plasmas on NSTX [Data set]. Princeton Plasma Physics Laboratory, Princeton University.
@electronic{banerjee_s_2016,
  author      = {Banerjee, S. and
                A. Diallo and
                S.J. Zweben},
  title       = {{Observation of quasi-coherent edge fluct
                uations in Ohmic plasmas on NSTX}},
  publisher   = {{Princeton Plasma Physics Laboratory, Pri
                nceton University}},
  year        = 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.

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Authors Banerjee, S.
A. Diallo
S.J. Zweben
Domains Natural Sciences
Communities Spherical Torus, Princeton Plasma Physics Laboratory
Subcommunities Spherical Torus
Collection Tags NSTX
Date Accessioned 4 April 2016
Issue date April 2016
URI http://arks.princeton.edu/ark:/88435/dsp0170795b055
Table of Contents readme and hdf5 files
Referenced by doi: 10.1063/1.4946871
Language en_US
Publisher Princeton Plasma Physics Laboratory, Princeton University
Relation Physics of Plasmas, vol. 23, p. 044502, April 2016
Relation - Is Referenced By doi: 10.1063/1.4946871
Type Dataset
Funding Agency U. S. Department of Energy contract number DE-AC02-09CH11466
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