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Effects of an Oblique Magnetic Field on Sheath Formation in the Presence of Electron Emission
Author(s) -
Sato K.,
Katayama H.,
Miyawaki F.
Publication year - 1994
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150340207
Subject(s) - gyroradius , magnetic field , electron , polarization (electrochemistry) , lorentz force , ion , atomic physics , physics , oblique case , secondary emission , computational physics , electric field , kinetic energy , space charge , classical mechanics , nuclear physics , chemistry , linguistics , philosophy , quantum mechanics
It is found from kinetic analyses that an oblique magnetic field provides two presheath mechanisms. One is due to the ion polarization drift and another is due to the finite ion‐gyroradius effect. The secondary‐electron inflow is effectively diminished due to reflection by the Lorentz force and the emission coefficient is limited to a value less than 0. 8 by the space‐charge effect when the magnetic angle approaches to 90°.
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