The Classification of the First Spark Spectrum of Lead: Pb II
The Classification of the First Spark Spectrum of Lead: Pb II
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DOI：
10.1103/physrev.47.115
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发表时间：
1935-01
期刊：
影响因子：
--
通讯作者：
Lester T. Earls;R. A. Sawyer
中科院分区：
文献类型：
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作者：
Lester T. Earls;R. A. Sawyer
在800 A到10，000 A的范围内拍摄了在氦中的Schüler空心阴极放电中激发的Pb II的光谱。根据这些数据，Fraülein H.蔡茨（Zeits）F. Physik 42，265（1927））已经被修正和扩展。247条谱线已被分类，它们位于离子电离水平以下的89个水平。这些包括s，p，d，f和g系列的基础上6 s 2，延伸到值的n从14到19，和所有水平的其他配置，预计低于电离。这些水平的分配检查由一系列的考虑，塞曼效应数据，超精细结构数据，通过比较与类似的光谱锗II和锡II，并通过协议与规则和不规则的双重法律的等电子序列与T1 I和Bi III。所观察到的异常位置的水平的数量示出的定性解释的扰动之间的预期甚至水平。
The spectrum of Pb II as excited in a Schüler hollow cathode discharge in helium has been photographed in the region from 800A to 10,000 A. With these data the classification given by Fraülein H. Gieseler (Zeits. f. Physik 42, 265 (1927)) has been corrected and extended. 247 lines have been classified, which locate 89 levels below the ionization level of the ion. These include the s, p, d, f and g series based on 6 s 2, extending to values of n of from 14 to 19, and all levels of the other configurations which are expected below ionization. The assignment of these levels is checked by series considerations, by Zeeman effect data, by hyperfine structure data, by comparison with the similar spectra Ge II and Sn II, and by the agreement with the regular and irregular doublet laws in the isoelectronic sequence with T1 I and Bi III. The observed anomalous location of a number of the levels is shown to be explained qualitatively by the perturbations expected between the even levels.