Synthetic doppler reflectometer diagnostic for nonlinear global gyrokinetic simulations

S. Leerink (Corresponding Author), V. V. Bulanin, E. Z. Gusakov, Jukka Heikkinen, S. J. Janhunen, T. P. Kiviniemi, T. Korpilo, M. Nora, F. Ogando

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Abstract

Turbulence spectra of density fluctuations measured with Doppler Reflectometry at the FT‐2 tokamak are com‐pared to full f nonlinear gyrokinetic simulations by means of a synthetic Doppler reflectometry diagnostic. The experimental and synthetic power spectrum of the Doppler reflectometer show good agreements in both the Doppler shift as well as the width of the power spectrum, indicating comparable rotation and spreading of the turbulence. The averaged radial electric field is shown to closely folllow the neoclasical Hazeltine Hinton value and Geodesic Acoustic mode are clearly identified by the width of the spectra.
Original languageEnglish
Pages (from-to)242-245
JournalContributions to Plasma Physics
Volume50
Issue number3-5
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed
Event12th International Workshop on Plasma Edge Theory in Fusion Devices, PET‐12 - Rostov, Russian Federation
Duration: 2 Sep 20094 Sep 2009

Keywords

  • Gyrokinetic simulations
  • Doppler reflectometry
  • Poloidal velocity

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    Leerink, S., Bulanin, V. V., Gusakov, E. Z., Heikkinen, J., Janhunen, S. J., Kiviniemi, T. P., Korpilo, T., Nora, M., & Ogando, F. (2010). Synthetic doppler reflectometer diagnostic for nonlinear global gyrokinetic simulations. Contributions to Plasma Physics, 50(3-5), 242-245. https://doi.org/10.1002/ctpp.201010040