An overmoded abrupt transition coaxial buncher cavity has been designed and experimentally cold tested for use in a second-harmonic 17.136-GHz three-cavity 100-MW gyroklystron. Circuit efficiencies of 41% can be achieved with a buncher cavity that has a quality factor of 389 in the TE/sub 021/ mode. Scattering matrix and finite-element codes were used to design and model the cavity theoretically and to determine that the cavity would be stable to oscillation. The experimental cold testing confirmed these results and refined the final dimensions from the theoretical models.
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机译：设计了一种过时的突变过渡同轴集束腔，并对其进行了冷试验，并进行了二次谐波17.136 GHz三腔100 MW回旋速调管的使用。使用在TE / sub 021 /模式下质量因数为389的集束腔可以实现41％的电路效率。使用散射矩阵和有限元代码从理论上对腔进行设计和建模，并确定腔对振荡稳定。实验性冷测试证实了这些结果，并从理论模型中完善了最终尺寸。
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