激光原子法同位素分离中三维原子分布函数的计算

在激光同位素分离中 ,激光作用区内原子的密度和速度分布对分离过程有重要影响。目前 ,理论上对这个问题的研究还都限于二维情形。该文根据激光同位素分离装置中激光作用区原子密度较低的特点 ,在忽略原子碰撞的条件下给出了一种计算三维空间内原子速度分布函数的方法。利用该方法对小尺度蒸发实验进行计算所获得的结果在定性和定量上都与实验测量符合的很好。

Calculation of 3-D atom''s distribution function in atomic vapor laser isotope separation

The atomic density and velocity distribution in the laser excitation zone is very important for the atomic vapor laser isotope separation (AVLIS). Till now, all the theoretical studies on this problem are limited to two dimensional cases. In view of the low atomic density in laser excitation zone for the case of AVLIS, by ignoring the collisions between atoms a simple method for computing atomic velocity distribution in three-dimensional space was presented in this paper. The computed results for a small scale vapor soure agree well with experimental measurements.