Initial Operation of a High-Power Quasi-Optical Gyrotron

Arne W. Fliflet, Thomas A. Hargreaves, Wallace M. Manheimer, Richard P. Fischer

Research output: Contribution to journalArticlepeer-review

Abstract

Results from the initial operation of a high-power quasi-optical gyrotron based on the 90-kV 50-A Varian VUW-8144 electron gun are reported. The output power and efficiency have been measured for a resonator mirror separation of 19.4 cm with a magnetic field of 4.95 T, corresponding to resonator output coupling of 1.9%, and for a resonator mirror separation of 21.4 cm with a magnetic field of 4.7 T, corresponding to a resonator output coupling of 3.1%. Operation was multimoded with 3-6 modes excited in the range of 125-130 GHz for the 4.95-T magnetic field. A peak efficiency of 15% at an output power of 161 kW was obtained for a gun voltage of 93 kV and a current of 12 A. A peak-output power of 364 kW at an efficiency of 10% was obtained at a voltage of 95.6 kV and 37.5 A.

Original languageEnglish (US)
Pages (from-to)306-312
Number of pages7
JournalIEEE Transactions on Plasma Science
Volume18
Issue number3
DOIs
StatePublished - Jun 1990
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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