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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2020, Volume 46, Issue 15, Pages 39–42
DOI: https://doi.org/10.21883/PJTF.2020.15.49748.18348 (Mi pjtf5036) 		 
Local measurements of radial plasma velocity fluctuations in the FT-2 tokamak using equatorial enhanced scattering

A. D. Gurchenkoa, E. Z. Gusakova, A. B. Altukhova, V. A. Ivanova, A. V. Sidorova, L. A. Esipova, T. P. Kiviniemib, D. V. Kouprienkoa, S. Leerinkb, S. I. Lashkula

a Ioffe Institute, St. Petersburg
b Department of Applied Physics, Aalto University, Espoo, Finland
Full-text PDF (491 kB)
DOI: https://doi.org/10.21883/PJTF.2020.15.49748.18348
Abstract: The possibility of local measurements of the level of the radial plasma velocity fluctuations by the equatorial enhanced scattering of a narrow microwave beam in the upper hybrid resonance in the core plasma of a tokamak is demonstrated. The limitations of the proposed method are clarified at the periphery of the plasma, where the amplitude of density fluctuations grows and small-angle scattering of microwaves on them along the path to the upper hybrid resonance and back becomes significant.
Keywords: plasma, tokamak, velocity fluctuations, enhanced scattering.
Funding agency Grant number
Russian Science Foundation 17-12-01110
Academy of Finland 316088
330342
Ministry of Education and Science of the Russian Federation 0040-2014-0023
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.
We are grateful to the CSC–IT Center for Science for the generous distribution of computational resources for this work. The operation of the FT-2 tokamak and standard diagnostics of the discharge was carried out within the scope of a state contract of the Ioffe Physical Technical Institute, no. 0040-2014-0023.
Received: 21.04.2020
Revised: 30.04.2020
Accepted: 30.04.2020
English version:
Technical Physics Letters, 2020, Volume 46, Issue 8, Pages 767–770
DOI: https://doi.org/10.1134/S1063785020080076
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: 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, “Local measurements of radial plasma velocity fluctuations in the FT-2 tokamak using equatorial enhanced scattering”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 46:15 (2020), 39–42; Tech. Phys. Lett., 46:8 (2020), 767–770
Citation in format AMSBIB
\Bibitem{GurGusAlt20}
\by 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
\paper Local measurements of radial plasma velocity fluctuations in the FT-2 tokamak using equatorial enhanced scattering
\jour Pisma v Zhurnal Tekhnicheskoi Fiziki
\yr 2020
\vol 46
\issue 15
\pages 39--42
\mathnet{http://mi.mathnet.ru/pjtf5036}
\crossref{https://doi.org/10.21883/PJTF.2020.15.49748.18348}
\elib{https://elibrary.ru/item.asp?id=44041070}
\transl
\jour Tech. Phys. Lett.
\yr 2020
\vol 46
\issue 8
\pages 767--770
\crossref{https://doi.org/10.1134/S1063785020080076}
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