Particle Deconfinement in a Bent Magnetic Mirror
Authors: Renaud Gueroult and Nathaniel J. Fisch
Abstract:
Coils misalignment in a magnetic mirror can produce additional particle transport.
The magnetic field non axi-symmetry is responsible for radial and longitudinal drifts
in a way much similar to the neo-classical transport in a tandem mirror cell distorted
by end plugs. Accordingly, a regime exhibiting large radial displacements - similar
to the resonant regime in tandem mirrors - can be obtained by confining ions azimuthally,
for example by means of a properly tuned radial electric field. Because
of the mass dependence of the magnetic field non-homogeneity drift velocities, the
azimuthal trapping is mass specific, allowing in principle the filtering of a specific
species based on its mass.
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Submitted to: Physics of Plasmas (August 2012)
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Download PPPL-4805 (pdf 27 KB 14 pp)
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