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research article
Dc Space-Charge-Induced Frequency up-Shift in a Quasi-Optical Gyrotron
Recent experiments on a 100 GHz quasioptical gyrotron have shown that for a large resonator setup [Phys. Fluids B 2, 1654 (1990)] the observed frequency up-shift between the starting current and a current of 10 A corresponds to a shift of 4-5 longitudinal modes. In this Letter it is shown that the interpretation of this frequency up-shift should involve the current-dependent electron beam voltage depression in the beam tunnel and interaction region for both the single-mode and multimode time evolution codes.
Type
research article
Authors
Publication date
1991
Published in
Volume
3
Issue
3
Start page
519
End page
521
Peer reviewed
REVIEWED
Available on Infoscience
April 16, 2008
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