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Title: Exact orbital motion theory of the shielding potential around an emitting, spherical body
Authors: Delzanno, GL ×
Bruno, Andrea
Sorasio, G
Lapenta, Giovanni #
Issue Date: 2005
Publisher: American Institute of Physics
Series Title: Physics of Plasmas vol:12 issue:6 pages:062102-062102-18
Conference: IEEE International Conference on Plasma Science ICOPS location:Monterey, California, USA date:18-23 June 2005
Abstract: A kinetic theory for the equilibrium of an unmagnetized plasma consisting of electrons and ions surrounding a spherical body emitting electrons (due to thermionic emission, photoemission, or secondary emission) is presented. The theory is valid for positively charged bodies, neglects collisions of the plasma particles, and is formulated for profiles of the shielding potential presenting an attractive well. Particle-in-cell simulations are shown to be in good agreement with the theory. An approximated criterion is derived to determine the presence of the potential well.
ISSN: 1070-664X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Plasma-astrophysics Section
× corresponding author
# (joint) last author

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