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High-power X-band amplification from an overmoded three-cavity gyroklystron with a tunable penultimate cavity

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7 Author(s)
Tantawi, S.G. ; Lab. for Plasma Res., Maryland Univ., College Park, MD, USA ; Main, W.T. ; Latham, P.E. ; Nusinovich, G.S.
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Experimental results for a 10 GHz TE01 mode three-cavity gyroklystron with a tunable penultimate cavity are presented. The electron beam was produced by a pulse line modulator and a magnetron injection gun which operates to 433 kV and 225 A with 1 μs flat-top. Three-cavity circuits have produced a peak power of 27 MW with efficiency of 32% and pulse energy of 39 J. A maximum gain of 50 dB was achieved at a peak power of 20 MW, and a maximum efficiency of 37% was achieved at a peak power of 16 MW

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Plasma Science, IEEE Transactions on  (Volume:20 ,  Issue: 3 )