Synthetic doppler reflectometer diagnostic for nonlinear global gyrokinetic simulations

S. Leerink; V. V. Bulanin; E. Z. Gusakov; Jukka Heikkinen; S. J. Janhunen; T. P. Kiviniemi; T. Korpilo; M. Nora; F. Ogando

doi:10.1002/ctpp.201010040

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

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Scientific › peer-review

16 Citations (Scopus)

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 language	English
Pages (from-to)	242-245
Journal	Contributions to Plasma Physics
Volume	50
Issue number	3-5
DOIs	https://doi.org/10.1002/ctpp.201010040
Publication status	Published - 2010
MoE publication type	A1 Journal article-refereed
Event	12th International Workshop on Plasma Edge Theory in Fusion Devices, PET‐12 - Rostov, Russian Federation Duration: 2 Sept 2009 → 4 Sept 2009

Keywords

Gyrokinetic simulations
Doppler reflectometry
Poloidal velocity

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10.1002/ctpp.201010040

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title = "Synthetic doppler reflectometer diagnostic for nonlinear global gyrokinetic simulations",

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.",

keywords = "Gyrokinetic simulations, Doppler reflectometry, Poloidal velocity",

author = "S. Leerink and Bulanin, {V. V.} and Gusakov, {E. Z.} and Jukka Heikkinen and Janhunen, {S. J.} and Kiviniemi, {T. P.} and T. Korpilo and M. Nora and F. Ogando",

year = "2010",

doi = "10.1002/ctpp.201010040",

language = "English",

volume = "50",

pages = "242--245",

journal = "Contributions to Plasma Physics",

issn = "0863-1042",

publisher = "Wiley-VCH Verlag",

number = "3-5",

note = "12th International Workshop on Plasma Edge Theory in Fusion Devices, PET‐12 ; Conference date: 02-09-2009 Through 04-09-2009",

}

TY - JOUR

T1 - Synthetic doppler reflectometer diagnostic for nonlinear global gyrokinetic simulations

AU - Leerink, S.

AU - Bulanin, V. V.

AU - Gusakov, E. Z.

AU - Heikkinen, Jukka

AU - Janhunen, S. J.

AU - Kiviniemi, T. P.

AU - Korpilo, T.

AU - Nora, M.

AU - Ogando, F.

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

KW - Gyrokinetic simulations

KW - Doppler reflectometry

KW - Poloidal velocity

U2 - 10.1002/ctpp.201010040

DO - 10.1002/ctpp.201010040

M3 - Article

SN - 0863-1042

VL - 50

SP - 242

EP - 245

JO - Contributions to Plasma Physics

JF - Contributions to Plasma Physics

IS - 3-5

T2 - 12th International Workshop on Plasma Edge Theory in Fusion Devices, PET‐12

Y2 - 2 September 2009 through 4 September 2009

ER -

Synthetic doppler reflectometer diagnostic for nonlinear global gyrokinetic simulations

Abstract

Keywords

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