ISSN:
1089-7674
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The charging of dust particles caused by the thermal electrons, the cold ions, and the electron beam released from a plane cathode, including secondary emission of dust in a collisionless cathode sheath of glow discharges, is investigated with a self-consistent theoretical model. Effects of the dust charging relevant to the electron beam including secondary emission of dust are important to the dust potential in the close cathode region. Collection of electrons from the electron beam by dust leads to a decline in the dust potential, but secondary emission of dust by the electron beam impact causes a rise in the dust potential. The dust potential can be negative in the whole sheath if an electron beam emitted from a cathode is strong enough. © 2000 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.873907
