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A W-band gyrotron traveling wave amplifier experiment

He, W. and Donaldson, C. R. and Zhang, L. and McElhinney, P. and Phelps, A. D R and Ronald, K. and Cross, A. W. (2014) A W-band gyrotron traveling wave amplifier experiment. In: International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. IEEE. ISBN 9781479938773

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Abstract

A gyrotron traveling wave amplifier (gyro-TWA) with a cusp electron gun and a helically corrugated waveguide operating in the W-band is presented. When driven by an electron beam of energy 40 keV and current 1.5 A, the simulated microwave output power is 5 kW (CW) with a 3 dB frequency bandwidth of 90-100 GHz and a saturated gain of 37 dB. Linear analyses, numerical simulation and the latest experimental results will be presented.