磁选态和光抽运铯束管特性的对比  

Performance Comparison Between the Magnetic State-Selecting Cesium Beam Tube and the Optically Pumping Cesium Beam Tube

作　　者：卢斌[1] 陈海军[1] 王克廷[1] 

机构地区：[1]北京真空电子技术研究所,北京100016

出　　处：《真空电子技术》2006年第4期97-100,共4页Vacuum Electronics

摘　　要：简述了磁选态和光抽运铯束管的工作原理,在频率准确度、短期稳定度、长期稳定度三个方面将两者对频标性能的作用影响进行了计算对比。结果表明磁选态管准确度和长稳较好,短稳有限;光抽运管可使优值系数F增大数倍,短稳有优势,但光频移影响了准确度及长稳,应尽力减小。两者各有长处与不足,未来发展趋势将是一方面继续改进磁选态管,另一方面应发展完善光抽运管。The working principles of the magnetic state-selecting cesium beam tube and the optically pumping cesium beam tube are described in this paper. The magnetic state-selecting tube is compared with the optically pumping one on the frequency-accuracy, the short-term stability and the long-term stability. It shows that the magnetic state-selecting tube has a nice frequency-accuracy and a nice long-term stability, but its short-term stability is a little poor. The optically pumping tube has a nice short-term stability, but with a great light frequency-shift. Both the magnetic state-selecting tube and the optically pumping one have their advantages and shortcomings, and will be improved continuously.

关 键 词：铯束管 磁选态 光抽运 准确度 短期稳定度 长期稳定度 

分 类 号：TN24[电子电信—物理电子学]