激光诱导荧光法测量原子束速度分布  

Measurement of Velocity Distribution of Belted Vapor by Laser Induced Fllorescence

作　　者：王德武[1] 孔羽飞[1] 扬移[1] 靳文峰[1] 

机构地区：[1]清华大学工程物理系,北京100084

出　　处：《中国激光》2002年第8期735-738,共4页Chinese Journal of Lasers

摘　　要：采用双束激光诱导荧光法测量钆原子蒸气束的径向速度及其多普勒宽度分布。采用同位素位移特性进行速度定标 ,使测速装置简单 ,方法简便易行。给出原子束径向速度及其多普勒宽度分布。径向速度随 β 角增加而近似线性减小。多普勒宽度随 βThe radial velocity distribution and Doppler width distribution of Gd metal atomic vapor heated by the liner electronic gun is measured by the dye double laser induced fllorescence. With demarcating the velocity by isotope displacemen characteristic, the measuring device is simplifyed. The radial velocity and Doppler width distribution of belted atomic vapor are given. The radial velocity approximately linearly decreases with β angle increasing. The Doppler width approximately linearly increases with β angle increasing.

关 键 词：激光诱导荧光法 测量 原子束 速度分布 原子蒸气束 多普勒宽度 

分 类 号：TN247[电子电信—物理电子学]