UV-INDUCED COULOMB CRYSTALLIZATION OF DUST GRAINS IN HIGH-PRESSURE GAS

Authors
ROSENBERG M MENDIS A SHEEHAN DP
Citation
M. Rosenberg et al., UV-INDUCED COULOMB CRYSTALLIZATION OF DUST GRAINS IN HIGH-PRESSURE GAS, IEEE transactions on plasma science, 24(6), 1996, pp. 1422-1430
Citations number
40
Categorie Soggetti
Phsycs, Fluid & Plasmas
Journal title
IEEE transactions on plasma science → ACNP
ISSN journal
00933813
Volume
24
Issue
6
Year of publication
1996
Pages
1422 - 1430
Database
ISI
SICI code
0093-3813(1996)24:6<1422:UCCODG>2.0.ZU;2-Q
Abstract
A scheme for forming a Coulomb lattice of positivelly charged dust gra ins in a high-pressure (P > torr) gas is discussed theoretically. The grains are charged positively by photoemission in the presence of a fl ux of ultraviolet CUV) photons with energy larger than the work functi on of the grains, but lower than the ionization potential of the backg round gas. Methods for levitating and confining the dust using photoph oretic forces (both UV and non-UV), gas drag, and electrostatic forces are considered.