碱金属原子光谱精细结构的相对强度

The Relative Intensity of Fine Structure of Alkali Metal′s Atomic Spectra

碱金属在化学元素周期表中的特殊位置和应用广泛性使人类对它颇感兴趣。碱金属原子的光谱在原子物理领域里也有十分重要的地位。本文讨论了影响碱金属原子光谱精细结构强度分布的主要因素 :①原子在单位时间内从m能级跃迁到n能级的几率Amn;②处于热平衡时激发总能级m上的电子分布Nm;③每个光子能量hvmn。计算了碱金属光谱精细结构成分的相对强度 。

Man is very interested in alkali metal because of its special position in the chemical element′s periodic table and its extensive applications.Alkali metal′s atomic spectra also have important positions in the field of the atomic physics.The paper discusses the main factors that influence the intensity distribution of fine structure of alkali metal′s atomic spectra:① the probability A mn of the atom that leaps from the m level to the n level in the unit time;② the electronic distribution N m in the total level m which is excited in the hot balance;③ each photon′s energy hv mn .This paper calculates the relative intensity of alkali metal′s atomic spectra.The calculated results are in good agreement with the experiment.