Long ion plasma confinement times with a 'rotating wall'

Journal Article · Sat Apr 15 00:00:00 EDT 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.47893· OSTI ID:21153801

Anderegg, F; Huang, X -P; Driscoll, C F; Severn, G D; Sarid, E ^[1]

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1. Institute for Pure and Applied Physical Sciences and Physics Department, University of California at San Diego, La Jolla, CA 92093 (United States)

Static field errors in a Penning-Malmberg trap exert a drag on confined non-neutral plasmas, causing radial expansion and loss. We suppress this transport by applying an electrostatic wall asymmetry rotating faster than the plasma. This results in inward radial transport and plasma compression. The experiments are performed on a magnesium ion plasma in a magnetic field of 4 Tesla, with in situ Laser Induced Fluorescence (LIF) measurement of density and temperature profiles. Confinement of ions for up to 10 days is routinely observed.

• OSTI ID: 21153801
• Journal Information: AIP Conference Proceedings, Vol. 331, Issue 1; Conference: Non-neutral plasma physics II: Berkeley workshop on non-neutral plasmas in traps, Berkeley, CA (United States), 17-20 Jul 1994; Other Information: DOI: 10.1063/1.47893; (c) 1995 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASYMMETRY
COMPRESSION
ELECTRIC FIELDS
FLUORESCENCE
ION TEMPERATURE
LASER RADIATION
MAGNESIUM IONS
MAGNETIC FIELDS
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA EXPANSION
TRAPS