一种空间行波管收集极入口能量分布测试方法及应用  

A Measuring Method for Space TWT Collector Inlet Energy Distribution and Its Application

作　　者：陈平 李新义 张晓冉 胡权[2] 成红霞 季大习 CHEN Ping;LI Xin-yi;ZHANG Xiao-ran;HU Quan;CHENG Hong-xia;JI Da-xi(Nanjing Sanle Group Co.,Ltd.,Nanjing 211800,China;University of Electronic Science and Technology of China,Chengdu 611731,China)

机构地区：[1]南京三乐集团有限公司,江苏南京211800 [2]电子科技大学,四川成都611731

出　　处：《真空电子技术》2023年第1期46-49,共4页Vacuum Electronics

摘　　要：收集极效率是空间行波管整管效率的重要组成部分,收集极入口能量分布对收集极的设计至关重要。在行波管设计中,直接通过互作用仿真计算获得的收集极入口能量分布往往与实际存在较大偏差。本文介绍了一种使用收集极电极加电势构造空间势垒测试收集极入口能量的方法,并通过此方法测试了某空间行波管收集极入口能量分布,通过调整激励功率等方法构造与测试入口能量分布接近的收集极入口电子注,并使用此入口电子注对收集极电子光学结构进行了优化,取得了较好效果。The collector efficiency is an important part of overall efficiency of space traveling wave tube(TWT),and the energy distribution at the collector inlet is crucial to collector design.In the design of TWT,the energy distribution at the collector inlet obtained directly by interaction simulation often deviates greatly from the reality.A collector inlet energy measuring method by using collector electrode and potential to construct potential barrier is introduced,and the collector inlet energy distribution of a space TWT is measured by this method.A collector inlet electron beam close to the measured result is constructed by adjusting the excitation power and other methods.The inlet electron beam is used to optimize the electron optical structure of the collector and good result is achieved.

关 键 词：势垒法 入口能量 收集极效率 空间行波管 

分 类 号：TN124[电子电信—物理电子学]