Open AccessЛокальные измерения флуктуаций радиальной скорости плазмы в токамаке ФТ-2 с помощью экваториального усиленного рассеяния
Author(s) -
А.Д. Гурченко,
Е.З. Гусаков,
А.Б. Алтухов,
В.А. Иванов,
А.В. Сидоров,
Л.А. Есипов,
Timo Kiviniemi,
Д.В. Куприенко,
S. Leerink,
С.И. Лашкул
Publication year - 2020
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2020.15.49748.18348
Subject(s) - tokamak , plasma , physics , scattering , resonance (particle physics) , microwave , amplitude , atomic physics , core (optical fiber) , computational physics , optics , nuclear physics , quantum mechanics
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.