Plihon, N.; Chabert, P.; Corr, C. S.
Double layers (DLs) have been observed in a plasma reactor composed of a
source chamber attached to a larger expanding chamber. Positive ion beams
generated across the DL were characterized in the low plasma potential region
using retarding field energy analyzers. In electropositive gases, DLs were
formed at very low pressures between 0.1 and 1 mTorr with the plasma expansion
forced by a strongly diverging magnetic field. The DL remains static, robust to
changes in boundary conditions,...[Show more]
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