作者: Kun Dong , Ran Yan , Yong Luo
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摘要: A new curved-profile undepressed collector designed for a planned 35-GHz gyrotron traveling-wave tube (gyro-TWT) is proposed in this paper. This gyro-TWT, which driven by 70-kV, 10-A electron beam, working at the fundamental TE01 mode with an efficiency of 20% and gain 45 dB. Studies including theoretical analysis, numerical calculation, computational simulation have been done. Key issues concerning electronic collecting density, dissipated power distribution, transmission performance, secondary electrons, thermal property are considered. Simulation results show that structure has better heat-handling capacity than conventional line collector.