On the nature of global plasma oscillations in a tokamak. Part I: Kinetic properties of oscillations observed at the T-10 tokamak

Autor: G. N. Ploskirev, V. V. Piterskii, O. Valencia, T.V. Gridina, V.I. Poznyak, E.G. Ploskirev
Rok vydání: 2012
Předmět:
Zdroj: Plasma Physics Reports. 38:679-696
ISSN: 1562-6938
1063-780X
DOI: 10.1134/s1063780x12080223
Popis: Large-scale plasma oscillations (so-called MHD oscillations) in the T-10 tokamak are investigated. The central electron cyclotron heating was used to enhance oscillations at the m/n = 1/1 mode with the goal of determining the internal characteristics of the process. Spatially resolved measurements of electron cyclotron emission in a wide frequency range for two polarizations allowed for analyzing a number of effects indicating the kinetic nature of plasma oscillations. The major part of the electron distribution over longitudinal velocities in the plasma core experiences strong periodic oscillations accompanied by synchronous spikes of radiation emitted by high-energy electrons at the edge of the plasma column.
Databáze: OpenAIRE