项目名称: 准直器结构对高性能铯原子钟束流强度影响的研究
项目编号: No.11204116
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 物理学I
项目作者: 朱宏伟
作者单位: 兰州空间技术物理研究所
项目金额: 30万元
中文摘要: 铯束管内铯原子逸出准直器后的束流强度,对铯原子钟的性能指标有直接影响,准直器的结构和形状、几何尺寸决定了铯原子束的束流强度和角分布。本申请项目从理论上分析铯原子逸出准直器的发射过程,并根据试验测试结果建立和完善气体束流逸出准直器后状态分析的理论模型和模拟计算方法,以此为基础提出准直器的改进设计方案,以提高铯原子束流强度,改善铯束管的信噪比和铯原子钟短期稳定度性能指标,推动地面和空间高性能铯原子钟的发展。
中文关键词: 准直器结构;铯原子钟;束流强度;;
英文摘要: Beam intensity of cesium atom emanated from collimator directly affected performance of cesium atom clock. Construction, shape and dimension of collimator determined beam intensity and angular distribution. This project will analyse the process of cesium atom emanated from collimator, establish perfect theoretical model and simulative calculation method of gas beam state analysis after collimator based on experiment result, advance modified design decision of collimator. The investigation will enhance beam intensity of cesium atom, improve signal to noise ratio and short term stability of cesium atom clock, then promote development of ground and space high performance cesium atom clock.
英文关键词: Collimator Structure;Cesium Atom Clock;Beam Intensity;;