Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: K1.00090 : ``Force Field" for Plasma Confinement
Author:
Theoretical research associated with producing an electromagnetic field referred to as a
``force field" is reported. A force field is defined at present as a static electromagnetic
field that has the following characteristics: (1) It has an effective range that is much
smaller than the dimensions of a cloud, plasma or beam of charged particles that is
confined by the field. (2) It can simultaneously reflect incident charged particles of
either sign of charge. A force field could consist of a spatially periodic sequence of
magnetic cusps that are electrostatically plugged using applied electrostatic potential
variations similar to that found in nested Penning traps. For plasma confinement, a
possible configuration consists of a sequence of coaxial ring cusps. The diameter of
the ring cusps varies axially, with the smallest rings located near the axial ends of the
confinement volume. Two point cusps that are coaxial with the ring cusps are located
at the axial ends of the confinement volumes. A current-carrying wire placed along the
axis of symmetry could be used to produce a minimum-B configuration. In the work
reported, a theoretical understanding is developed of the single-particle reflection
properties of a force field that confines a non-drifting, isotropic plasma.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.K1.90
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