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Observation of ion scale fluctuations in the pedestal region during the edge-localized-mode cycle on the National Spherical Torus Experiment

Publication ,  Journal Article
Diallo, A; Kramer, GJ; Smith, DR; Maingi, R; Bell, RE; Guttenfelder, W; Leblanc, BP; Podestà, M; McKee, GJ; Fonck, R
Published in: Physics of Plasmas
January 1, 2013
Published version (DOI)

Characterization of the spatial structure of turbulence fluctuations during the edge localized mode cycle in the pedestal region is reported. Using the beam emission spectroscopy and the correlation reflectometry systems, measurements show spatial structure - k⊥ρiped - ranging from 0.2 to 0.7 propagating in the ion diamagnetic drift direction at the pedestal top. These propagating spatial scales are found to be anisotropic and consistent with ion-scale microturbulence of the type ion temperature gradient and/or kinetic ballooning modes. © 2013 American Institute of Physics.

Duke Scholars

David R. Smith
Author David R. Smith Electrical and Computer Engineering

Published In

Physics of Plasmas

DOI

10.1063/1.4773402

ISSN

1070-664X

Publication Date

January 1, 2013

Volume

20

Issue

1

Related Subject Headings

  • Fluids & Plasmas
  • 5109 Space sciences
  • 5106 Nuclear and plasma physics
  • 0203 Classical Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

Citation

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MLA
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Diallo, A., Kramer, G. J., Smith, D. R., Maingi, R., Bell, R. E., Guttenfelder, W., … Fonck, R. (2013). Observation of ion scale fluctuations in the pedestal region during the edge-localized-mode cycle on the National Spherical Torus Experiment. Physics of Plasmas, 20(1). https://doi.org/10.1063/1.4773402
Diallo, A., G. J. Kramer, D. R. Smith, R. Maingi, R. E. Bell, W. Guttenfelder, B. P. Leblanc, M. Podestà, G. J. McKee, and R. Fonck. “Observation of ion scale fluctuations in the pedestal region during the edge-localized-mode cycle on the National Spherical Torus Experiment.” Physics of Plasmas 20, no. 1 (January 1, 2013). https://doi.org/10.1063/1.4773402.
Diallo A, Kramer GJ, Smith DR, Maingi R, Bell RE, Guttenfelder W, et al. Observation of ion scale fluctuations in the pedestal region during the edge-localized-mode cycle on the National Spherical Torus Experiment. Physics of Plasmas. 2013 Jan 1;20(1).
Diallo, A., et al. “Observation of ion scale fluctuations in the pedestal region during the edge-localized-mode cycle on the National Spherical Torus Experiment.” Physics of Plasmas, vol. 20, no. 1, Jan. 2013. Scopus, doi:10.1063/1.4773402.
Diallo A, Kramer GJ, Smith DR, Maingi R, Bell RE, Guttenfelder W, Leblanc BP, Podestà M, McKee GJ, Fonck R. Observation of ion scale fluctuations in the pedestal region during the edge-localized-mode cycle on the National Spherical Torus Experiment. Physics of Plasmas. 2013 Jan 1;20(1).

Published In

Physics of Plasmas

DOI

10.1063/1.4773402

ISSN

1070-664X

Publication Date

January 1, 2013

Volume

20

Issue

1

Related Subject Headings

  • Fluids & Plasmas
  • 5109 Space sciences
  • 5106 Nuclear and plasma physics
  • 0203 Classical Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences