Journal article
Excitation of collective plasma modes during collisions between dust grains and the formation of dust plasma crystals
Plasma physics reports, Vol.24(6), pp.490-497
06/01/1998
Abstract
Dust plasma crystals have recently been produced in experiments in a number of laboratories. For dust crystallization to occur, there should exist an efficient mechanism for the cooling of the dust plasma component. It is shown that the excitation of collective plasma modes during collisions between the grains may serve as the required cooling mechanism. The excitation of dust sound waves is found to be most efficient. It is shown that the cooling of dust grains via the excitation of collective plasma modes can be even more efficient than that due to collisions with neutral particles, which was previously considered to be the only mechanism for cooling of the dust plasma component. At present, the first experiments are being carried out to study collisions between individual dust grains. High efficiency of the excitation of plasma modes caused by collisions between dust grains is attributed to the coherent displacement of the plasma particles that shield the grains. It is shown that the excitation efficiency is proportional to the fourth power of the charge of the dust grains and to a large power of their relative velocity, and is independent of their mass. The results obtained can be checked in experiments studying how the binary collisions between dust grains and the pressure of the neutral component influence the dust crystallization.
Details
- Title: Subtitle
- Excitation of collective plasma modes during collisions between dust grains and the formation of dust plasma crystals
- Creators
- J A GoreeG MorfillV N Tsytovich
- Resource Type
- Journal article
- Publication Details
- Plasma physics reports, Vol.24(6), pp.490-497
- Publisher
- Springer Nature
- ISSN
- 1063-780X
- eISSN
- 1562-6938
- Number of pages
- 8
- Language
- English
- Date published
- 06/01/1998
- Academic Unit
- Physics and Astronomy; Mechanical Engineering
- Record Identifier
- 9984428675402771
Metrics
2 Record Views