耦合双腔回旋管的束波互作用分析
ANALYSIS OF BEAM-WAVE INTERACTION IN THE COUPLED DOUBLE-CAVITY GYROTRON
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摘要: 本文导出了回旋管中电子与高频场同步互作用方程的普遍形式,考虑了导引中心漂移和场分布相位变化的影响,利用一个双腔回旋管模型,通过调节场分布f(z),计算了TE021模二次谐波单模工作时的互作用效率。计算表明,对=1.5,效率可高达53％。我们还讨论了双腔结构的特点;对单、双腔电子群聚过程进行了比较;分析了导引中心漂移和场分布相位对互作用的影响。
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Abstract: Several equations of the electron-wave synchronous interaction in gyrotron oscillator are-derived, in which the effects of the guiding center drift and the phase of the RF field profile are considered. The electron efficiency is calculated for the second harmonic operation of the TE021 mode for a double-cavity gyrotron model, in which the RF field profile and operation parameters of the gyrotron are adjusted. It is shown that the efficiency of 53% can be attained for =1.5. The characteristic of the double-cavity structure is discussed. The bunching processes of the single and double cavities are compared. The effect of the guiding center drift and the Phase of the RF field profile on the electron-wave interaction in analysed. -
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