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Deevelopment of a 1.5 MW, 140 GHz coaxial gyrotron

Conference ·
OSTI ID:391220
; ; ; ;  [1]
  1. Forschungszentrum Karlsruhe (Germany); and others
A 1.5 MW, 140 GHz, TE{sub 28,16}-coaxial gyrotron with an inverse MIG is under development. Preliminary rf-tests using an axial rf output and a simple cavity with a constant diameter and non-corrugated inner rod gave an rf output power of 1 MW with an efficiency of 23% at 140 GHz (TE{sub 28,16}) and 1.3 MW with an efficiency of 29% at 133 GHz (TE{sup 27,15}). No indications of beam instabilities in the beam tunnel between the IMIG gun and the cavity have been observed. Experiments with an improved cavity and the design of the tube with a radial dual Gaussian beam output and a depressed collector are underway.
OSTI ID:
391220
Report Number(s):
CONF-951240--
Country of Publication:
United States
Language:
English

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