铯束管寿命分析  

Lifetime Analysis of Cesium Beam Tubes

作　　者：陈海军[1] 麻力 闫雨菲 蔡军[1] 冯进军[1] CHEN Hai-jun;MA Li;YAN Yu-fei;CAI Jun;FENG Jin-jun(National Key Laboratory of Science and Technology on Vacuum Electronics,Beijing Vacuum Electronics Research Institute,Beijing 100015,China;China Electronic Standardization Institute,Beijing 100176,China)

机构地区：[1]中国电子科技集团公司第十二研究所微波电真空器件国家级重点实验室,北京100015 [2]工业和信息化部电子第四研究院,北京100176

出　　处：《真空电子技术》2020年第6期20-22,27,共4页Vacuum Electronics

摘　　要：铯束管是铯原子钟的核心器件,本文介绍了磁选态、激光抽运、磁选光检三种类型铯束管的工作原理与特点,对影响铯束管寿命的装铯量、吸铯剂、电子倍增器等因素进行了阐述和分析,提出了保证铯束管长寿命工作的建议。Cesium beam tube is the core device of a cesium atomic clock.This article introduces the working principles and characteristics of three type cesium beam tubes:magnetic state selection,laser pumping,magnetically selected and optically detected.Factors on the lifetime of cesium beam tubes such as cesium-filling amount,graphite getters and electron multiplier are explained and analyzed,and suggestions for long-life operation of cesium beam tubes are put forward.

关 键 词：激光抽运 磁选态 磁选光检 铯束管 寿命 铯原子钟 

分 类 号：TM935[电气工程—电力电子与电力传动]