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New modes in a plasma with periodic boundaries: the origin of the dense spectrum
(The American Physical Society, 1991-10-28)
We analyze the new features of the low-frequency (£0 < £Op) modes of wave propagation in a plasma filled,
spatially periodic structure. The spectrum of these modes is drastically modified by the periodic
boundaries in a ...
Non-adiabatic transition of beams in gyrotrons through various magnetic field profiles
(Taylor & Francis, 1991)
The achievement of efficiency enhancement in small-orbit gyrotrons by using
depressed collector techniques requires precisely configured magnetic field
profiles which present adiabatic as well as non-adiabatic transitions ...