Journal article
Ion trapping by a charged dust grain in a plasma
Physical review letters, Vol.69(2), pp.277-280
1992
DOI: 10.1103/PhysRevLett.69.277
PMID: 10046632
Abstract
Motivated by space and laboratory applications, a theory is presented for ions trapped by a charged dust grain in a plasma. The grain’s attractive Debye sphere confines ions after a collision. They shield the grain’s considerable electric charge from external fields. Their number Ntrap is determined by a balance of the capture and loss rates. At steady state, Ntrap is independent of the collisional mean free path and increases with the plasma ion density. Because of the density dependence, trapping is significant in laboratory plasmas but not in comparatively less dense space plasmas.
Details
- Title: Subtitle
- Ion trapping by a charged dust grain in a plasma
- Creators
- J Goree - Max Planck Society
- Resource Type
- Journal article
- Publication Details
- Physical review letters, Vol.69(2), pp.277-280
- Publisher
- American Physical Society
- DOI
- 10.1103/PhysRevLett.69.277
- PMID
- 10046632
- ISSN
- 0031-9007
- eISSN
- 1079-7114
- Language
- English
- Date published
- 1992
- Academic Unit
- Physics and Astronomy; Mechanical Engineering
- Record Identifier
- 9984199786102771
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