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W-band gyro-TWA using a cusp electron gun and a helically corrugated interaction region

He, W. and Donaldson, C.R. and Zhang, L. and McElhinney, P. and Ronald, K. and Cross, A.W. (2013) W-band gyro-TWA using a cusp electron gun and a helically corrugated interaction region. In: 2013 IEEE 14th International Vacuum Electronics Conference (IVEC 2013). IEEE, Piscataway, NJ, pp. 1-2. ISBN 9781467359764

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    Theoretical calculation, numerical simulation and experimental development of a W-band gyro-TWA with a helically corrugated waveguide and a cusp electron gun are presented. The cusp gun generated a 40 keV, 1.5 A axis-encircling electron beam. The maximum output of the gyro-TWA was predicted to be 5 kW with a 3 dB frequency bandwidth of 90-100 GHz and a saturated gain of 37 dB. The latest experimental results will be presented.