Self-trapping of a rotating ion ring

Citation
Bj. Albright et Rj. Faehl, Self-trapping of a rotating ion ring, PHYS PLASMA, 8(9), 2001, pp. 4030-4034
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS OF PLASMAS
ISSN journal
1070-664X → ACNP
Volume
8
Issue
9
Year of publication
2001
Pages
4030 - 4034
Database
ISI
SICI code
1070-664X(200109)8:9<4030:SOARIR>2.0.ZU;2-Y
Abstract
A fluid model is presented that describes the linear evolution of a thin la yer of beam ions in a conducting cylindrical cavity with a narrow rotating beam layer, and a dispersion relation is computed for the low-frequency ele ctromagnetic response of the system. For a broad range of ion ring paramete rs this configuration is found to be unstable to the generation of Alfvenic fluctuations. Simple estimates are provided of the time needed for these f luctuations to self-trap the ion beam. (C) 2001 American Institute of Physi cs.