An analytical force balance model for dust particles with size up to several Debye lengths

TitleAn analytical force balance model for dust particles with size up to several Debye lengths
Publication TypeJournal Article
Year of Publication2017
AuthorsD.UB Aussems, S.A Khrapak, I. Dogan, M.CM van de Sanden, T.W Morgan
JournalPhysics of Plasmas
Volume24
Issue11
Pagination113702
Abstract

In this study, we developed a revised stationary force balance model for particles in the regime a/labda D<10. In contrast to other analytical models, the pressure and dipole force were included too, and for anisotropic plasmas, a novel contribution to the dipole moment was derived. Moreover, the Coulomb logarithm and collection cross-section were modified. The model was applied on a case study where carbon dust is formed near the plasma sheath in the linear plasma device Pilot-PSI. The pressure force and dipole force were found to be significant. By tracing the equilibrium position, the particle radius was determined at which the particle deposits. The obtained particle radius agrees well with the experimentally obtained size and suggests better agreement as compared to the unrevised model.

DOI10.1063/1.5001576
Division

PSI

Department

PMI

PIDb7c27e442bc57dfadc3f1bf153da6197
Alternate TitlePhys. Plasmas
LabelOA
Attachment: 

Go back one page.