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

doi:10.1134/S1063785020080076

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

^*Corresponding author for this work

Ioffe Institute

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

Abstract

The possibility of local measurement of the fluctuation level of the radial plasma velocity using equatorial enhanced scattering of a narrow microwave beam in the upper hybrid resonance in internal regions of tokamak plasma is demonstrated. Restrictions of the proposed method at the plasma periphery where the density fluctuation amplitude increases and small-angle scattering of microwaves by the fluctuations along the path to the upper hybrid resonance and back becomes significant are clarified.

Original language	English
Pages (from-to)	767-770
Number of pages	4
Journal	Technical Physics Letters
Volume	46
Issue number	8
DOIs	https://doi.org/10.1134/S1063785020080076
Publication status	Published - 1 Aug 2020
MoE publication type	A1 Journal article-refereed

Funding

This work was supported by the Russian Science Foundation, project no. 17-12-01110. Numerical simulation was supported by the Academy of Finland, grants nos. 316088 and 330342.

Keywords

enhanced scattering
plasma
tokamak
velocity fluctuations

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10.1134/S1063785020080076

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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. (2020). Local Measurements of Radial Plasma Velocity Fluctuations in the FT-2 Tokamak Using Equatorial Enhanced Scattering. Technical Physics Letters, 46(8), 767-770. https://doi.org/10.1134/S1063785020080076

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title = "Local Measurements of Radial Plasma Velocity Fluctuations in the FT-2 Tokamak Using Equatorial Enhanced Scattering",

abstract = "The possibility of local measurement of the fluctuation level of the radial plasma velocity using equatorial enhanced scattering of a narrow microwave beam in the upper hybrid resonance in internal regions of tokamak plasma is demonstrated. Restrictions of the proposed method at the plasma periphery where the density fluctuation amplitude increases and small-angle scattering of microwaves by the fluctuations along the path to the upper hybrid resonance and back becomes significant are clarified.",

keywords = "enhanced scattering, plasma, tokamak, velocity fluctuations",

author = "Gurchenko, \{A. D.\} and Gusakov, \{E. Z.\} and Altukhov, \{A. B.\} and Ivanov, \{V. A.\} and Sidorov, \{A. V.\} and Esipov, \{L. A.\} and Kiviniemi, \{T. P.\} and Kouprienko, \{D. V.\} and S. Leerink and Lashkul, \{S. I.\}",

year = "2020",

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doi = "10.1134/S1063785020080076",

language = "English",

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AU - Gurchenko, A. D.

AU - Gusakov, E. Z.

AU - Altukhov, A. B.

AU - Ivanov, V. A.

AU - Sidorov, A. V.

AU - Esipov, L. A.

AU - Kiviniemi, T. P.

AU - Kouprienko, D. V.

AU - Leerink, S.

AU - Lashkul, S. I.

PY - 2020/8/1

Y1 - 2020/8/1

N2 - The possibility of local measurement of the fluctuation level of the radial plasma velocity using equatorial enhanced scattering of a narrow microwave beam in the upper hybrid resonance in internal regions of tokamak plasma is demonstrated. Restrictions of the proposed method at the plasma periphery where the density fluctuation amplitude increases and small-angle scattering of microwaves by the fluctuations along the path to the upper hybrid resonance and back becomes significant are clarified.

AB - The possibility of local measurement of the fluctuation level of the radial plasma velocity using equatorial enhanced scattering of a narrow microwave beam in the upper hybrid resonance in internal regions of tokamak plasma is demonstrated. Restrictions of the proposed method at the plasma periphery where the density fluctuation amplitude increases and small-angle scattering of microwaves by the fluctuations along the path to the upper hybrid resonance and back becomes significant are clarified.

KW - enhanced scattering

KW - plasma

KW - tokamak

KW - velocity fluctuations

UR - https://www.scopus.com/pages/publications/85090929385

U2 - 10.1134/S1063785020080076

DO - 10.1134/S1063785020080076

M3 - Article

AN - SCOPUS:85090929385

SN - 1063-7850

VL - 46

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EP - 770

JO - Technical Physics Letters

JF - Technical Physics Letters

IS - 8

ER -

Local Measurements of Radial Plasma Velocity Fluctuations in the FT-2 Tokamak Using Equatorial Enhanced Scattering

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Keywords

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