THE HYPERFINE STRUCTURE SEPARATIONS OF SOME TERMS IN THE THALLIUM II SPECTRUM

1 July 1936

journal article
Published by Canadian Science Publishing in Canadian Journal of Research

Vol. 14a (7) , 139-151
https://doi.org/10.1139/cjr36a-016

Abstract

The hyperfine structure separations of about 25 terms of T1 II have been measured by means of two quartz and two glass Lummer plates used in conjunction with a Hilger E1 spectrograph. The light source was a hollow cathode discharge in helium. Large isotope displacements have been found in some of the terms of the 5d⁹6s²6p configuration, also in the 6p² ³P₂ and 6p² ¹D₂ terms. The results have been used to calculate g(I) and to examine the validity of the application of the summation rules to the separation factors for the 6snd and 6snf configurations. The spacing of the system of levels arising from the 6s6f configuration has been examined.

Keywords

This publication has 3 references indexed in Scilit:

Zur Theorie der Hyperfeinstruktur
The European Physical Journal A, 1933
Zur Theorie der Hyperfeinstruktur
The European Physical Journal A, 1931
Some Multiplets of Singly Ionized Thallium
Proceedings of the National Academy of Sciences, 1928