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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Photoelectric Charging of Dust Particles in Vacuum
Physical Review Letters, Volume 84, No. 26, Year 2000
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Description
Photoelectric charging measurements are presented of dust grains in vacuum for isolated grains and for grains near a photoemissive surface. Isolated grains reach a positive-equilibrium floating potential, dependent upon the work function of the particle, which causes the emitted electrons to be returned. Grains dropped past a photoemitting surface reach a negative floating potential for which the sum of the emitted and collected currents is zero. The particles tested are 90-106 μm in diameter and are composed of Zn, Cu, graphite, and glass. © 2000 The American Physical Society.
Authors & Co-Authors
Sickafoose, A. A.
United States, Boulder
University of Colorado Boulder
Statistics
Citations: 127
Authors: 1
Affiliations: 1
Identifiers
Doi:
10.1103/PhysRevLett.84.6034
ISSN:
00319007