利用电子枪检测空间行波管真空度的方法  

Vacuum Degree Measuring Method of Space TWT by Using Electron Gun

作　　者：陈平 李新义 张晓冉 冯西贤[2] 季大习 成红霞 CHEN Ping;LI Xin-yi;ZHANG Xiao-ran;FENG Xi-xian;JI Da-xi;CHENG Hong-xia(Nanjing Sanle Group Co.Ltd.,Nanjing 211800,China;Xi'an Institute of Space Radio Technology,Xi'an 710199,China)

机构地区：[1]南京三乐集团有限公司,江苏南京211800 [2]西安空间无线电技术研究所,陕西西安710199

出　　处：《真空电子技术》2023年第4期41-43,共3页Vacuum Electronics

摘　　要：维持空间行波管内超高真空度对其稳定性和长寿命至关重要。本文介绍了一种使用空间行波管电子枪进行管内真空度检测的方法,主要介绍了此方法的原理、检测流程,给出了样管检测结果,对检测数据的分析验证了此方法具有良好的线性度和准确性。此方法为空间行波管在分离离子泵和封装后的管内真空度检测提供了一种有效手段。It is very important to maintain the ultra-high vacuum of space traveling wave tube(TWT)for its stability and long life.A vacuum degree measuring method of space TWT by using its electron gun is introduced.The principle and the measuring process are described,and the sample tube measuring results are given.The data analysis shows that the method has good linearity and accuracy.It provides an effective means for vacuum degree measuring of the space TWT after ion pump separating and packaging.

关 键 词：真空度检测 电子枪 微小电流测量 空间行波管 

分 类 号：TN107[电子电信—物理电子学]