کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1569224 1514257 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Finite size effect of dust charging in the magnetized edge plasma
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Finite size effect of dust charging in the magnetized edge plasma
چکیده انگلیسی
A newly developed 3-dimensional particle-particle particle-mesh (P3M) code is applied to study the charging process of micrometer size dust grains confined in the magnetized plasma near the material wall of a tokamak. Plasma particles (electrons and ions) are treated kinetically (particle-in-cell with Monte Carlo collisions (PIC-MCC)), which allows to self-consistently resolve the electrostatic sheath in front of the material wall. In order to accurately resolve the plasma particles' motion close to the dust grain, the PIC technique is supplemented with molecular dynamics (MD), employing an analytic electrostatic potential for the interaction with the dust grain. The dynamics of charging of dust grains confined in the magnetized edge plasma and its dependence on the size of the dust is investigated. The results are compared with the case of unmagnetized plasma.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volumes 363–365, 15 June 2007, Pages 458-461
نویسندگان
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