Observation of plasma density oscillations using the microwave interferometer of the T-15MD tokamak
Drozd A. S.1,2, Vinitskiy E. A.1,2, Sergeev D. S.1, Belov A. M.1, Eliseev L. G.
1, Rogozin K. A.1,3
1National Research Center “Kurchatov Institute”, Moscow, Russia
2National Research Nuclear University “MEPhI”, Moscow, Russia
3National Research University «Moscow Power Engineering Institute», Moscow, Russia
Email: 970107@bk.ru, 7003836259
The capabilities of the microwave interferometer of the T-15MD tokamak for observing and analyzing plasma density fluctuation parameters are presented. The results of the first experiments on measuring line-integrated plasma density oscillations at the T-15MD tokamak are reported. Using the microwave interferometer, low-frequency magnetohydrodynamic (MHD) perturbations, including sawtooth oscillations, were detected. It is shown that the amplitude of the microwave interferometer signal can provide additional information about plasma perturbations. Keywords: tokamak, amplitude effects, sawtooth oscillations, low-frequency modes
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