Open AccessОпределение локализации альфвеновских колебаний в плазме токамака ТУМАН-3М
Author(s) -
Г.И. Абдуллина,
Л.Г. Аскинази,
А.А. Белокуров,
Н.А. Жубр,
В.А. Корнев,
С.В. Крикунов,
С.В. Лебедев,
Д.B. Разуменко,
А.С. Тукачинский
Publication year - 2018
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2018.03.45578.17063
Subject(s) - oscillation (cell signaling) , physics , tokamak , dispersion relation , plasma , atomic physics , magnetic field , upper hybrid oscillation , deuterium , dispersion (optics) , plasma oscillation , condensed matter physics , chemistry , optics , nuclear physics , quantum mechanics , biochemistry
The Alfvén oscillations have been studied in ohmically heated deuterium discharges with LH-transition in the TUMAN-3M tokamak in order to clarify their location in a plasma column. The Alfvén oscillation location was determined by comparison of the oscillation frequency measured with magnetic probes and that calculated from local density assuming the typical dispersion relation for Alfvén waves f = (2π)^−1 k _|| v _ A , where v _ A is the Alfvén velocity and k _|| is the the parallel wave number in the direction of the magnetic field. It was found that they are localized in central part of plasma column inside r / a < 0.5 region. Candidate sets of mode numbers have been determined.