Open AccessРоль электрического поля в формировании режима отрыва плазмы токамака
Author(s) -
И.Ю. Сениченков,
Е.Г. Кавеева,
В.А. Рожанский,
E. Sytova,
И.Ю. Веселова,
С.П. Воскобойников,
D. Coster
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.2018.06.45769.17085
Subject(s) - asdex upgrade , plasma , tokamak , atomic physics , magnetic field , redistribution (election) , physics , nuclear physics , quantum mechanics , politics , political science , law
Modeling of the transition to the detachment of ASDEX Upgrade tokamak plasma with increasing density is performed using the SOLPS-ITER numerical code with a self-consistent account of drifts and currents. Their role in plasma redistribution both in the confinement region and in the scrape-off layer (SOL) is investigated. The mechanism of high field side high-density formation in the SOL in the course of detachment is suggested. In the full detachment regime, when the cold plasma region expands above the X -point and reaches closed magnetic-flux surfaces, plasma perturbation in a confined region may lead to a change in the confinement regime.