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Title: Radiation−condensation instability in tokamaks with mixed impurities

Radiation−condensation instability (RCI) is one of the possible mechanisms behind the formation of microfaceted asymmetric radiation from the edge (MARFE) of a tokamak. It has been previously shown by the authors that RCI in carbon-seeded plasma can be stabilized using neon injection. Recently, beryllium- and tungsten-seeded plasmas became a subject of great interest. Therefore, in the present paper, RCI stability analysis of the edge plasma seeded with beryllium, tungsten, nitrogen, and carbon is performed. The influence of neutral hydrogen fluxes from the wall on the marginal stability limit is studied as well.
Authors:
;  [1]
  1. National Research Centre Kurchatov Institute (Russian Federation)
Publication Date:
OSTI Identifier:
22472212
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 41; Journal Issue: 8; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ASYMMETRY; BERYLLIUM; CARBON; EDGE LOCALIZED MODES; HYDROGEN; MARFE; NEON; NITROGEN; PLASMA; PLASMA INSTABILITY; TOKAMAK DEVICES; TUNGSTEN