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Applied Plasma Physics and Fusion Energy Seminar Series

Fall 2002

Tuesday, 3:30-4:30 PM in 479 EBU-II


November 12

Dusty plasmas in laboratory and space applications
Marlene Rosenberg
Department of Electrical and Computer Engineering
UC San Diego

ABSTRACT:

Dusty plasmas are plasmas containing micron to sub-micron sized solid particles, or dust grains, that are electrically charged. Dust grains are present in many space and astrophysical plasmas, such as planetary rings, comets, meteor trails, noctilucent clouds, the interstellar medium, and star-forming regions. Dust also occurs in laboratory plasmas, such as those used for materials processing, the novel crystallized dusty plasmas, and dusty plasma wave experiments. In this talk, I will give an overview of some recent theoretical work on dusty plasmas with applications to diverse space and laboratory environments. Topics will include applications of grain charging, the behavior of waves and instabilities, and effects associated with strong dust coupling. Applications to both space (e.g., meteor flight, space shuttle exhaust plume, meteor trails) and the laboratory (e.g., dusty plasma wave experiments, dust plasma crystals) will be discussed.

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