Fast synthetic X-mode Doppler reflectometry diagnostics for the full-f global gyrokinetic modeling of the FT-2 tokamak

被引：10
作者：
Altukhov, A. B. [1 ]
Gurchenko, A. D. [1 ]
Gusakov, E. Z. [1 ]
Irzak, M. A. [1 ]
Niskala, P. [2 ]
Esipov, L. A. [1 ]
Kiviniemi, T. P. [2 ]
Leerink, S. [2 ]
机构：
[1] Ioffe Inst, St Petersburg 194021, Russia
[2] Aalto Univ, AALTO, FI-00076 Espoo, Finland
来源：
PHYSICS OF PLASMAS | 2018年 / 25卷 / 08期
基金：
俄罗斯科学基金会; 芬兰科学院;
关键词：
PLASMA TURBULENCE; ZONAL FLOWS;
D O I：
10.1063/1.5034781
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The fast linear (Born approximation) version of the X-mode Doppler reflectometry (DR) synthetic diagnostics is developed in the framework of the ELMFIRE global gyrokinetic modeling of the FT-2 tokamak ohmic discharge. The DR signal frequency spectra and the dependence of their frequency shift and shape on the probing antenna position are computed and shown to be similar to those measured in the high magnetic field side probing DR experiment at the FT-2 tokamak. The fluctuation poloidal velocities are determined using the DR experiment and synthetic diagnostics and shown to be within 15%. However, the computed and measured dependences of the DR signal power on the antenna position appear to be different presumably due to underestimation of the small-scale trapped electron mode turbulence component in the measurement region by the code. Published by AIP Publishing.
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收藏
页数：9
相关论文
共 37 条
[1]   THE SCATTERING PHASE-SHIFT DUE TO BRAGG RESONANCE IN ONE-DIMENSIONAL FLUCTUATION REFLECTOMETRY [J].
AFEYAN, BB ;
CHOU, AE ;
COHEN, BI .
PLASMA PHYSICS AND CONTROLLED FUSION, 1995, 37 (03) :315-327
[2]   Poloidal inhomogeneity of turbulence in the FT-2 tokamak by radial correlation Doppler reflectometry and gyrokinetic modelling [J].
Altukhov, A. B. ;
Gurchenko, A. D. ;
Gusakov, E. Z. ;
Esipov, L. A. ;
Irzak, M. A. ;
Kantor, M. Yu ;
Kouprienko, D. V. ;
Lashkul, S. I. ;
Leerink, S. ;
Niskala, P. ;
Stepanov, A. Yu ;
Teplova, N. V. .
PLASMA PHYSICS AND CONTROLLED FUSION, 2016, 58 (10)
[3]   Foundations of nonlinear gyrokinetic theory [J].
Brizard, A. J. ;
Hahm, T. S. .
REVIEWS OF MODERN PHYSICS, 2007, 79 (02) :421-468
[4]   Direct measurement of zonal flows and geodesic acoustic mode oscillations in ASDEX Upgrade using Doppler reflectometry [J].
Conway, GD ;
Scott, B ;
Schirmer, J ;
Reich, M ;
Kendl, A .
PLASMA PHYSICS AND CONTROLLED FUSION, 2005, 47 (08) :1165-1185
[5]   Zonal flows in plasma - a review [J].
Diamond, PH ;
Itoh, SI ;
Itoh, K ;
Hahm, TS .
PLASMA PHYSICS AND CONTROLLED FUSION, 2005, 47 (05) :R35-R161
[6]   Chapter 2: Plasma confinement and transport [J].
Department of Electrical Engineering, PSTI, University of California, Los Angeles, CA, United States ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 ;
不详 .
Nucl Fusion, 2007, 6 (S18-S127) :S18-S127
[7]   Role of density gradient driven trapped electron mode turbulence in the H-mode inner core with electron heating [J].
Ernst, D. R. ;
Burrell, K. H. ;
Guttenfelder, W. ;
Rhodes, T. L. ;
Dimits, A. M. ;
Bravenec, R. ;
Grierson, B. A. ;
Holland, C. ;
Lohr, J. ;
Marinoni, A. ;
McKee, G. R. ;
Petty, C. C. ;
Rost, J. C. ;
Schmitz, L. ;
Wang, G. ;
Zemedkun, S. ;
Zeng, L. .
PHYSICS OF PLASMAS, 2016, 23 (05)
[8]   The global version of the gyrokinetic turbulence code GENE [J].
Goerler, T. ;
Lapillonne, X. ;
Brunner, S. ;
Dannert, T. ;
Jenko, F. ;
Merz, F. ;
Told, D. .
JOURNAL OF COMPUTATIONAL PHYSICS, 2011, 230 (18) :7053-7071
[9]   Verification and validation for magnetic fusion [J].
Greenwald, Martin .
PHYSICS OF PLASMAS, 2010, 17 (05)
[10]   Observation of the ETG mode component of tokamak plasma turbulence by the UHR backscattering diagnostics [J].
Gurchenko, A. D. ;
Gusakov, E. Z. ;
Altukhov, A. B. ;
Stepanov, A. Yu. ;
Esipov, L. A. ;
Kantor, M. Yu. ;
Kouprienko, Dx ;
Dyachenko, D. V. ;
Lashkul, S. I. .
NUCLEAR FUSION, 2007, 47 (04) :245-250
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