Accession Number:

ADP012521

Title:

Trapped Particle Asymmetry Modes in Non-Neutral Plasmas

Descriptive Note:

Final rept. 15 Apr 2001-31 Mar 2002

Corporate Author:

CALIFORNIA UNIV SAN DIEGO LA JOLLA DEPT OF PHYSICS

Report Date:

2002-06-24

Pagination or Media Count:

10.0

Abstract:

Novel trapped particle asymmetry modes propagate on cylindrical electron columns when axial variations in the wall voltage cause particle trapping. These modes consist of E x B drifts of edge-trapped particles, partially shielded by axial flows of interior untrapped particles. A simple theory 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 trap asymmetries to particle motions and low frequency E x B drift modes.

Subject Categories:

  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE