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dc.contributor.authorHutchinson, Ian Horner
dc.date.accessioned2011-03-16T17:46:21Z
dc.date.available2011-03-16T17:46:21Z
dc.date.issued2011-03
dc.date.submitted2010-11
dc.identifier.issn1070-664X
dc.identifier.issn1089-7674
dc.identifier.urihttp://hdl.handle.net/1721.1/61705
dc.description.abstractThe wake behind a spherical particle smaller than the Debye length ( De) in owing plasma is calculated using a particle-in-cell code. The results with di erent magnitudes of charge reveal substantial non-linear e ects down to values that for a oating particle would correspond to a particle radius approximately 10􀀀2 De. The peak potential in the oscillatory wake structure is strongly suppressed by non-linearity, never exceeding approximately 0:4 times the unperturbed ion energy. By contrast, the density peak arising from ion focusing can be many times the ambient. Strong heating of the ions occurs in the non-linear regime. Direct ion absorption by the particle is not important for the far wake unless the radius exceeds 10􀀀1 De, and is therefore never signi cant (for the far wake) in the linear regime. Reasonable agreement with full-scale linear-response calculations are obtained in the linear regime. The wake wavelength is con rmed and an explanation, in terms of the conical potential structure, is proposed for experimentally- observed oblique alignment of di erent-sized grains.en_US
dc.language.isoen_US
dc.publisherAmerican Institute of Physicsen_US
dc.relation.isversionofhttp://dx.doi.org/10.1063/1.3562885en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alike 3.0en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/en_US
dc.sourceProf. Ian Hutchinsonen_US
dc.titleNon-linear collisionless plasma wakes of small particlesen_US
dc.typeArticleen_US
dc.identifier.citationHutchinson, I. H. "Non-linear collisionless plasma wakes of small particles." Physics of Plasmas, 18.3, 032111 (2011).en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineeringen_US
dc.contributor.approverHutchinson, Ian H.
dc.contributor.mitauthorHutchinson, Ian H.
dc.relation.journalPhysics of Plasmasen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsHutchinson, I. H.
mit.licenseOPEN_ACCESS_POLICYen_US
mit.metadata.statusComplete


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