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Photoelectric Charging of Dust Particles
[chapter]
2000
Frontiers in Dusty Plasmas
Preserved Fulltext
Laboratory experiments have been performed on the photoelectric charging of dust particles which are either isolated or adjacent to a surface that is also a photoemitter. We find that zinc dust charges to a positive potential of a few volts when isolated in vacuum and that it charges to a negative potential of a few volts when passed by a photoemitting surface. The illumination is an arc lamp emitting wavelengths longer than 200 nm and the emitting surface is a zirconium foil.
doi:10.1016/b978-044450398-5/50051-8
fatcat:sbfaaneqdbatfnuiq7bmz347fq