磁选态单束铯束管铯原子速率分布的模拟计算  

Simulative Calculation about Velocity Distribution of Cesium Atom in Magnetic State-Selecting Cesium Single Beam Tube

作　　者：朱宏伟[1] 陈江[1] 张涤新[1] 袁博[1] 王骥[1] 

机构地区：[1]兰州物理研究所,甘肃兰州730000

出　　处：《宇航计测技术》2010年第3期25-28,32,共5页Journal of Astronautic Metrology and Measurement

摘　　要：对铯炉准直器出口铯原子束的速率分布和角分布进行抽样,用蒙特卡罗方法模拟计算磁选态单束铯束管中五个关键位置的铯原子不同能级态的速率分布。结果是检测器处的铯原子速率分布不再符合麦克斯韦分布,分布密度最大值对应速率不随铯炉温度改变,只和束光学设计的参数有关。此模拟计算对指导磁选态铯束管束光学的设计有较大帮助。We sampled velocity distribution and angular distribution of cesium beam in oven collimator outlet,simulatively calculated velocity distribution of different cesium atom energy level in five significant position of magnetic state-selecting cesium single beam tube with Monte Carlo method.The result is that velocity distribution of cesium atom in detector does not accord with Maxwell Distribution anymore,and maximum value of distribution density only relates to optical beam parameter,not oven temperature.The simulative calculation is a great assistance to optical beam design of magnetic state-selecting cesium beam tube.

关 键 词：+磁选态单束铯束管 蒙特卡罗方法 速率分布 

分 类 号：TM935[电气工程—电力电子与电力传动]