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Operation of a 3 MW, 140 GHz gyrotron with a coaxial cavity

Conference ·
OSTI ID:346856
; ; ;  [1];  [2]
  1. Massachusetts Inst. of Tech., Cambridge, MA (United States). Plasma Fusion Center
  2. Physical Sciences Inc., Alexandria, VA (United States)

Experimental results will be presented here for a high power, high frequency coaxial gyrotron. The designed goal for this experiment is to produce 3 MW, at 140 GHz in the TE 21,13 mode with an efficiency of at least 30%. In the experiment the inner conductor extends from the electron gun to the output. The main advantages of the coaxial conductor are: causes rarefied mode spectrum around the design mode; reduces the quality factor of competing modes; volume modes (higher radial index) can be chosen (which increases the output power); and reduces voltage depression.

OSTI ID:
346856
Report Number(s):
CONF-980601--
Country of Publication:
United States
Language:
English

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