X波段重复频率GW级超辐射相对论返波管
X-band repetitive GW-level superradiance relativistic backward wave oscillator
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摘要: 运用超辐射机理，通过粒子模拟设计了X波段超辐射相对论返波管，并在小型Tesla脉冲源平台上开展了实验研究。通过空间功率积分和直接对辐射微波时域波形的分析得到实验结果：在束压350 kV、束流4.8 kA、脉宽3.1 ns、引导磁场2.2 T条件下，产生的微波辐射功率1.4 GW,中心频率9.36 GHz,脉宽500~700 ps,辐射模式为TE11，能在重复频率100 Hz下稳定运行。功率转换效率超过80%。实验结果与粒子模拟结果比较吻合，成功实现了在短脉冲条件下产生重复频率、亚纳秒脉宽、GW级微波辐射。
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关键词:
- 超辐射 /
- 相对论返波管 /
- 亚纳秒 /
- 高功率微波Key words:
Abstract: An X-band superradiance relativistic backward wave oscillator(RBWO) was designed by particle simulation applying superradiance mechanism, and the devices experimental study was performed on a compact Tesla pulse source. Space power integration and analysis of radiation microwave time-domain signal indicate that microwave pulses of 1.4 GW peak power, 9.36 GHz central frequency, 500~700 ps pulse width, TE11 radiation mode and 100 Hz repetitive pulse frequency were generated with an electron beam of 350 kV voltage, 4.8 kA current and 3.1 ns pulse width and a guiding magnetic field of 2.2 T. The power transfer efficiency exceeds 80%. The experiment results are consistent with the simulation results. The repetitive subnanosecond GW-level microwave was realised successfully under sho -
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