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.


Published in:
Physics of Fluids B-Plasma Physics, 3, 3, 519-521
Year:
1991
ISSN:
0899-8221
Laboratories:
SPC
CRPP




 Record created 2008-04-16, last modified 2018-09-13


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