X波段渡越管振荡器的粒子模拟和优化设计
Particle simulation and optimization design of the Xband transit time tube oscillator
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摘要: 提出了一种新型的渡越管谐振腔结构，通过全电磁2.5维相对论粒子模拟程序证实电子束可以与这种谐振腔结构发生互作用；基于该谐振腔结构，用全电磁2.5维相对论粒子模拟程序设计优化了可工作在X波段的渡越管振荡器，其输出功率大约1.7GW，束波转换效率约37%。Abstract: A novel resonator for transit time tube is put out and the interaction between the electron beam and the eigenmode in the resonant, with the 2.5 dimensional partical simulation code. The simulation indicated that the electron beam can well interact with the eigenmode in three and four cavity resonant. An Xband transit time tube oscillator is designed. With the voltage 760kV, the current 6kA and the magnetic field 2.6T in the simulation, the output power is about 1.7GW and interaction efficiency is about 37%.
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Key words:
- transit time tube /
- particle simulation /
- optimization design
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