Formation of a boundary-free dust cluster in a low-pressure gas-discharge plasma.
Phys Rev Lett
; 102(4): 045001, 2009 Jan 30.
Article
em En
| MEDLINE
| ID: mdl-19257428
ABSTRACT
An attraction between negatively charged micron-sized plastic particles was observed in the bulk of a low-pressure gas-discharge plasma under microgravity conditions. This attraction had led to the formation of a boundary-free dust cluster, containing one big central particle with a radius of about 6 microm and about 30 1 microm-sized particles situated on a sphere with a radius of 190 microm and with the big particle in the center. The stability of this boundary-free dust cluster was possible due to its confinement by the plasma flux on the central dust particle.
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MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2009
Tipo de documento:
Article