Overcoming the Child-Langmuir law via the magnetic mirror effect

Published 19 Aug 2012 in physics.plasm-ph, physics.class-ph, and physics.flu-dyn | (1208.3898v1)

Abstract: The maximum current in a vacuum tube prescribed by the classical Child-Langmuir law can be overcome, when the space-charge effect of the induced potential is mitigated by the mirror effect in a spatially varying magnetic field. The current could exceed the Child-Langmuir value by as much as a few factors. The regime of practical interest is examined.

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