Structure Formation in Complex Plasma
Abstract
Complex plasma result when microparticle "dust" becomes entrapped in a radio frequency (rf) discharge plasma. Dust charging was studied both theoretically and experimentally under cryogenic conditions whereby the charged microparticles experience supersonic flow in the presence of gravitational field. This research involved an investigation of microparticle structure formation in complex plasma under extreme conditions. A theoretical study of the charging mechanism in a non-uniform discharge plasma revealed that plasma density and temperature effects on dust grain charging at cryogenic temperatures is much smaller than that at the room temperature, which is in agreement with experimental observations. It is suggested that charging at cryogenic temperatures makes the formation of a strongly coupled system of dust particles.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 24, 2011
- Accession Number
- ADA549217
Entities
People
- Osamu Ishihara
Organizations
- Yokohama National University