Poloidal inhomogeneity of turbulence in the FT-2 tokamak by radial correlation Doppler reflectometry and gyrokinetic modelling

被引：15

作者：

Altukhov, A. B. ^{[1
]}

Gurchenko, A. D. ^{[1
]}

Gusakov, E. Z. ^{[1
]}

Esipov, L. A. ^{[1
]}

Irzak, M. A. ^{[1
]}

Kantor, M. Yu ^{[1
]}

Kouprienko, D. V. ^{[1
]}

Lashkul, S. I. ^{[1
]}

Leerink, S. ^{[2
]}

Niskala, P. ^{[2
]}

Stepanov, A. Yu ^{[1
]}

Teplova, N. V. ^{[1
]}

机构：

[1] Ioffe Inst, St Petersburg, Russia

[2] Aalto Univ, Espoo, Finland

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2016年 / 58卷 / 10期

基金：

芬兰科学院;

关键词：

turbulence; radial correlation reflectometry; correlation length; plasma; FLUCTUATIONS; DIAGNOSTICS; DENSITY; UPGRADE; LENGTH; CORE;

D O I：

10.1088/0741-3335/58/10/105004

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 poloidal dependence of the drift-wave turbulence characteristics is investigated at the FT-2 tokamak by radial correlation Doppler reflectometry (RCDR) technique and using the full distribution function global gyrokinetic modelling by ELMFIRE code. The poloidal variation of the turbulence radial correlation length from 0.2-0.55 cm is demonstrated both by measurement and computation. The turbulence correlation length rapidly decreases from the top of the poloidal cross-section to the high field side and then steadily grows in the poloidal direction. A well-pronounced excess of the turbulence radial correlation length in deuterium over its value in hydrogen discharges is demonstrated.

引用

页数：8

共 12 条

[1] Interpreting radial correlation Doppler reflectometry using gyrokinetic simulations
Ruiz, J. Ruiz
Parra, F., I
Hall-Chen, V. H.
Christen, N.
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Holland, C.
Howard, N. T.
Ren, Y.
White, A. E.
PLASMA PHYSICS AND CONTROLLED FUSION, 2022, 64 (05)
[2] Validation of full-f global gyrokinetic modeling results against the FT-2 tokamak Doppler reflectometry data using synthetic diagnostics
Krutkin, O. L.
Altukhov, A. B.
Gurchenko, A. D.
Gusakov, E. Z.
Irzak, M. A.
Esipov, L. A.
Sidorov, A., V
Chone, L.
Kiviniemi, T. P.
Leerink, S.
Niskala, P.
Lechte, C.
Heuraux, S.
Zadvitskiy, G.
NUCLEAR FUSION, 2019, 59 (09)
[3] Gyrokinetic characterization of the isotope effect in turbulent transport at the FT-2 tokamak
Niskala, P.
Gurchenko, A. D.
Gusakov, E. Z.
Altukhov, A. B.
Esipov, L. A.
Kantor, M. Yu
Kiviniemi, T. P.
Kouprienko, D.
Korpilo, T.
Lashkul, S. I.
Leerink, S.
Perevalov, A. A.
Rochford, R.
PLASMA PHYSICS AND CONTROLLED FUSION, 2017, 59 (04)
[4] GENE simulations of GAM-turbulence interactions in FT-2 tokamak
Albert, F.
Kiviniemi, T. P.
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Janhunen, S.
Leerink, S.
Hirvijoki, E.
Iorio, R. N.
PLASMA PHYSICS AND CONTROLLED FUSION, 2025, 67 (03)
[5] Local Measurements of Radial Plasma Velocity Fluctuations in the FT-2 Tokamak Using Equatorial Enhanced Scattering
Gurchenko, A. D.
Gusakov, E. Z.
Altukhov, A. B.
Ivanov, V. A.
Sidorov, A. V.
Esipov, L. A.
Kiviniemi, T. P.
Kouprienko, D. V.
Leerink, S.
Lashkul, S. I.
TECHNICAL PHYSICS LETTERS, 2020, 46 (08) : 767 - 770
[6] Numerical modelling of tokamak plasma micro turbulence wave number spectrum reconstruction using radial correlation reflectometry data
Kosolapova, N. V.
Gusakov, E. Z.
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NAMES10: NEW ACHIEVEMENTS IN MATERIALS AND ENVIRONMENTAL SCIENCES, 2013, 416
[7] First results of turbulence investigation on Globus-M2 using radial correlation Doppler reflectometry
Ponomarenko, A.
Yashin, A.
Gusev, V.
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Minaev, V.
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Sakharov, N.
Shchegolev, P.
Tkachenko, E.
Zhiltsov, N.
PLASMA SCIENCE & TECHNOLOGY, 2024, 26 (10)
[8] Local Measurements of Radial Plasma Velocity Fluctuations in the FT-2 Tokamak Using Equatorial Enhanced Scattering
A. D. Gurchenko
E. Z. Gusakov
A. B. Altukhov
V. A. Ivanov
A. V. Sidorov
L. A. Esipov
T. P. Kiviniemi
D. V. Kouprienko
S. Leerink
S. I. Lashkul
Technical Physics Letters, 2020, 46 : 767 - 770
[9] Observation of turbulence exponential wave number spectra at ion sub-Larmor scales in FT-2 tokamak
Gurchenko, A. D.
Gusakov, E. Z.
Kouprienko, D. V.
Leerink, S.
Altukhov, A. B.
Heikkinen, J. A.
Lashkul, S. I.
Esipov, L. A.
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PLASMA PHYSICS AND CONTROLLED FUSION, 2010, 52 (03)
[10] Time evolution of the exponential wavenumber spectra of turbulence upon helium injection into a hydrogen discharge at the FT-2 tokamak
Gurchenko, A. D.
Gusakov, E. Z.
Lashkul, S. I.
Altukhov, A. B.
Selyunin, E. P.
Esipov, L. A.
Kantor, M. Yu
Kouprienko, D. V.
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PLASMA PHYSICS REPORTS, 2013, 39 (05) : 337 - 344

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