原子光谱线增宽的原因

Several Reasons for Atomic Spectral Line Broadening

本文从理论上给出了原子光谱线增宽的几种原因 ,即 :①自然线宽 ,它是原子的内禀特性 (即在跃迁中所涉及到的能级的特性 ) ;②多普勒增宽 ,它是原子无规则热运动的结果 ;③碰撞增宽 ,它是原子间相互作用的结果。并对这几种原因分别给出了数量级上的估算。对原子光谱的测定具有参考意义。

Several reasons for atomic spectral line broadening in terms of theory are given, that's: natural broadening; Doppler broadening; collision broadening, respectively. Some estimated data based on these reasons are provided, which may be of significance for atomic spectral measurements, and the data are in agreement with experiments.