On dust charges and plasma potentials in a dusty plasma with dust size distribution

Details On dust charges and plasma potentials in a dusty plasma with dust size distribution On dust charges and plasma potentials in a dusty plasma with dust size distribution

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....95.6581h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 95, May 1, 1990, p. 6581-6585. Research supported by NAF.

Physics

105

Cosmic Dust, Particle Size Distribution, Plasma Clouds, Plasma Potentials, Electron Density (Concentration), Interplanetary Dust, Interstellar Matter, Ion Density (Concentration), Thermodynamic Equilibrium

Scientific paper

The question of charges on dust particles and local potential of a collection of dust embedded in a plasma is reconsidered. Distribution of dust sizes and photoelectric effects are included. It is shown that the existence of small undetected dust can have a considerable effect on the charges in, for example, a planetary ring. Simple rational function approximations are given to facilitate the calculations of dust charges and cloud potentials. The results are given for different ions and ratios between photoelectron and plasma electron fluxes.

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