Pulse-periodic ecr-heating plasma mode in L-2M stellarator [ИМПУЛЬСНО-ПЕРИОДИЧЕСКИЙ РЕЖИМ ЭЦР-НАГРЕВА ПЛАЗМЫ В СТЕЛЛАРАТОРЕ Л-2М]

The electron cyclotron resonance method is one of the main methods for plasma heating in modern thermonuclear devices. Mechanisms of ionization and plasma heating by microwave waves are actual for increasing the temperature of the plasma's electron component to the required values. This article presents the results of analysis of the experiments on creation and heating of high-temperature plasma confined in a stellarator magnetic trap. Heating was carried out in a pulse-periodic mode in a time-varying magnetic field with microwave pulses regulated in amplitude and time with pauses between them; their duration varied in the range of 1-4 ms. Dynamic of the electron temperature and density profiles were investigated with the EC-heating modulating as well as the edge plasma features. © 2020 National Research Center Kurchatov Institute. All rights reserved.