论文部分内容阅读
分析了同轴漂移管中电子束的空间电荷限制流和能量分布,为了降低S波段相对论速调管放大器(RKA)中电子束空间电荷效应及势能,提高RKA的束波转换效率,提出了三轴结构的输出腔,理论分析RKA的束波转换效率达到36%,比同轴提取腔的束波转换效率提高了9个百分点.采用数值计算程序设计了三轴提取腔,粒子模拟了S波段RKA的微波提取,取得了与理论分析一致的结果.采用590kV/5kA的空心电子束,经过预调制腔和群聚腔等两个腔的调制后,采用三轴提取腔提取微波,得到了约1·0GW的微波功率,效率35%.理论研究结果与实验结果吻合得较好.
In order to reduce the space charge effect and potential energy of the electron beam in the R-band relativistic klystron amplifier (RKA), and to improve the beam-to-beam conversion efficiency of the RKA, three Axis structure of the output cavity, the theoretical analysis of RKA beam conversion efficiency of 36%, compared with the coaxial extraction cavity beam conversion efficiency increased by 9 percentage points. Using a numerical calculation program designed three-axis extraction chamber, particle simulation S-band RKA microwave extraction, and obtained the theoretical analysis consistent results.Using 590kV / 5kA hollow electron beam, after the pre-modulated cavity and the cavity of the two cavity modulation, the use of three-axis extraction chamber microwave extraction, about the 1 · 0GW microwave power, efficiency of 35% .The theoretical results and experimental results are in good agreement.