Theory of 'virtual' dust voids: the stability of void structures

Journal Article · Sun Oct 30 23:00:00 EST 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2134606· OSTI ID:20726754

Vladimirov, S V ^[1]; Tsytovich, V N ^[2]; Morfill, G E ^[3]

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1. School of Physics, University of Sydney, New South Wales 2006 (Australia)
2. General Physics Institute, Russian Academy of Science, Vavilova St. 38, 117942 Moscow (Russian Federation)
3. Max-Planck-Institut fuer extraterrrestrische Physik, D-85740 Garching (Germany)

Experiments demonstrate a variety of dust void structures such as stable or unstable voids, global 'heatbeat' modes of oscillations of voids, dust voids in the center of the chamber or near its walls. Theory shows that a dust void generally results from the balance of the electrostatic and the plasma (such as the ion drag) forces acting on a dust particle. Here, the stability theory of a 'virtual' void is developed and its behavior is modeled. It is shown that sequences of stable and unstable void sizes can exist. The dynamics of dust in a plasma follows these stability characteristics leading to various stable and/or unstable dust void structures.

• OSTI ID: 20726754
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 799; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DUSTS
IONS
OSCILLATIONS
PARTICLES
PLASMA
SOLIDS
STABILITY
VOIDS