用脉冲激光饱和荧光法测定铀原子光吸收截面  

Simulation and study of scaling law on thermal blooming and phase compensation

作　　者：李自卫[1] 王新[1] 潘文杰[1] 于贵明[1] 弗林 张佳立 

机构地区：[1]核工业理化工程研究院

出　　处：《激光杂志》1997年第4期34-36,47,共4页Laser Journal

摘　　要：本文介绍了用脉冲激光饱和荧光法，来测定铀的０～１６９００ｃｍ－１能级的吸收截面，讲述了测量光吸收截面的基本原理，实验测量过程，并用此方法测量铀原子光吸收截面和国外文献发表相吻合。Thermal blooming and phase compensation correction for thermal blooming is numerically simulated in this paper.From the results of simulation,it is showed that Strehl ratio gets high and optical beam quality gets good.And the scaling law of thermal blooming after compensation correction is derived.It is found that critical power of thermal blooming after compensation correction is three times more than when not compensated.

关 键 词：脉冲激光 吸收截面 荧光探测 铀 光吸收截面 

分 类 号：TN240.6[电子电信—物理电子学]