Open AccessStudy of turbulence spectra in a spherical tokamak plasma
Author(s) -
E. A. Zhivulin,
V. V. Bulanin,
В. К. Гусев,
Г. С. Курскиев,
В. Б. Минаев,
М. И. Патров,
А. В. Петров,
Yu. V. Petrov,
A. Yu. Yashin
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1400/7/077036
Subject(s) - turbulence , tokamak , plasma , spectral line , doppler effect , physics , atomic physics , computational physics , mechanics , nuclear physics , astronomy
A turbulence study was carried out on the Globus-M tokamak. The main method of turbulence studying was Doppler backscattering. Studies have been performed at different radii (in areas with different plasma parameters). It was found that during the transition from H-mode with edge localized modes (ELMs) to the improved confinement mode without ELMs, both turbulent fluctuations of the plasma density and velocity fluctuations are suppressed, which apparently leads to a decrease in anomalous transport.