Preservation of a Dust Crystal as it Falls in an Afterglow Plasma
Journal Article
·
· Frontiers in Physics
- Univ. of Iowa, Iowa City, IA (United States)
In an experiment, the power that sustains a plasma was extinguished, so that microspheres, which had been levitated, fell downward toward a lower electrode. At the beginning of their fall, the microspheres were self-organized with a crystalline structure. This structure was found to be preserved as the microspheres accelerated all the way to the lower electrode. Although microspheres had, in this afterglow plasma, large positive charges of 12,500 e, their interparticle repulsion was unable to significantly alter the crystalline arrangement of the microspheres, as they fell. After their impact on the lower electrode, the microspheres bounced upward, and only then was the crystalline structure lost.
- Research Organization:
- Univ. of Iowa, Iowa City, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES); National Science Foundation (NSF)
- Grant/Contract Number:
- SC0014566; PHY-1740379
- OSTI ID:
- 1903246
- Alternate ID(s):
- OSTI ID: 1972225
- Journal Information:
- Frontiers in Physics, Vol. 10; ISSN 2296-424X
- Publisher:
- Frontiers Research FoundationCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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