Trapped-particle asymmetry modes in single-species plasmas - art. no. 225002

Citation
Aa. Kabantsev et al., Trapped-particle asymmetry modes in single-species plasmas - art. no. 225002, PHYS REV L, 8722(22), 2001, pp. 5002
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
8722
Issue
22
Year of publication
2001
Database
ISI
SICI code
0031-9007(20011126)8722:22<5002:TAMISP>2.0.ZU;2-P
Abstract
Novel trapped-particle asymmetry modes propagate on cylindrical electron co lumns when axial variations in the wall voltage cause particle trapping. Th ese modes consist of E x B drifts of edge-trapped particles, partially shie lded by axial flows of interior untrapped particles. A simple model agrees well with the observed frequencies and eigenfunctions, but the strong mode damping is as yet unexplained. These modes may be important in coupling tra p asymmetries to particle motions and low frequency E x B drift modes.