超高次谐波太赫兹大回旋振荡管研究  

Research on Ultra-high Harmonic Terahertz Gyrotrons with Large Orbit Beams

作　　者：赵其祥 李兴 吕游 陆路聪 雷朝军 王峨锋[3] 曾旭[3] 冯进军[3] ZHAO Qi-xiang;LI Xing;LU You;LU Lu-cong;LEI Chao-jun;WANG E-feng;ZENG Xu;FENG Jin-jun(Guilin University of Electronic Technology,School of Information and Communication,Guilin 541004,China;China People’s Police University,School of Police Equipment Technical,Langfang 065000,China;Beijing Vacuum Electronics Research Institute,National Key Laboratory of Science and Technology on Vacuum Electronics,Beijing 100015,China)

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004 [2]中国人民警察大学警务装备技术学院,河北廊坊065000 [3]北京真空电子技术研究所微波电真空器件国家级重点实验室,北京100015

出　　处：《真空电子技术》2024年第3期10-15,21,共7页Vacuum Electronics

基　　金：国家自然科学基金项目:62361019、62001131;中国人民警察大学重点项目:2019ZDGG001;广西高校中青年教师能力提升项目:2021KY0211。

摘　　要：大回旋电子注具有良好的模式选择特性,能有效抑制太赫兹回旋振荡管模式竞争,使得太赫兹回旋振荡管能稳定工作于高次谐波高阶模状态,大大降低工作磁场要求的同时增大了高频互作用电路尺寸,提高了功率容量,为实现大功率、高频率太赫兹波辐射提供了可能。论文基于超高次谐波大回旋振荡管注-波互作用理论研究,借助于三维粒子仿真软件,探讨了超高次谐波太赫兹大回旋振荡管注-波互作用物理过程、模式竞争等问题,优化设计了464 GHz九次谐波太赫兹回旋振荡管,在电子注电压为250 kV,电流为4.5 A时,实现峰值输出功率为7.5 kW,为应用生物医学提供关键技术支持。The gyrotron with large orbit beams has good mode selection characteristics,which can effectively suppress the mode competition of terahertz gyrotron oscillators.The characteristics enables the terahertz gyrotron oscillators to operate stably in high harmonic high order mode,greatly reducing the requirement of the applied magnetic field and increasing the size of high-frequency interaction circuits,improving power capacity,and providing the possibility of achieving high-power and high-frequency terahertz wave radiation.The theory of the beam wave interaction in ultra-high order harmonic gyrotron with large orbit beams is studied.With the help of three-dimensional particle simulation software,the physical process and mode competition of the beam wave interaction in ultra-high order terahertz gyrotron with large orbit beams are discussed.A ninth harmonic terahertz gyrotron with large orbit beams are optimized at the frequency of 464 GHz,achieving a peak output power of 7.5 kW at an electron beam voltage of 250 kV and a current of 4.5 A,which provides key technical support for applied biomedical applications.

关 键 词：太赫兹 超高次谐波 大回旋振荡管 高功率 

分 类 号：TN124[电子电信—物理电子学]