Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 337, Issue 1-3, Pages 114-118Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2004.08.029
Keywords
carbon impurities; power balance; power deposition; radiation; tungsten
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The temperature evolution of a dust grain in a tokamak plasma is studied computationally. Heating times and evaporation times for scrape-off layer (SOL) plasmas are estimated, leading to estimates for the lifetime of micron-sized dust grains ranging between fractions of a second and tens of microseconds depending on plasma conditions. Grains are found to travel significant distances into a tokamak plasma. (c) 2004 Elsevier B.V. All rights reserved.
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