18 May 1988 Submillimeter Gyrotron For Space Based Radar
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Abstract
A high power submillimeter, harmonic gyrotron oscillator is currently being operated at M.I.T. To achieve second harmonic emission, three different cavity configurations were studied: a tapered cavity, a slotted cavity, and a cavity with an output iris. In the cavity containing an output iris, second harmonic emission was observed at 6 frequencies between 301 GHz to 373 GHz with output powers of 4-6 kW, and at 417 GHz with an output power of 15 kW. The latter measurement corresponds to a total efficiency of 6%. A variety of diagnostics capable of discriminating between fundamental and second harmonic emission were also investigated.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. E. Spira, K. E. Kreischer, and R. J. Temkin "Submillimeter Gyrotron For Space Based Radar", Proc. SPIE 0879, Sensing, Discrimination, and Signal Processing and Superconducting Materials and Intrumentation, (18 May 1988); doi: 10.1117/12.943976; https://doi.org/10.1117/12.943976
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