Abstract

The results of an investigation initiated several years ago are presented in summary form. The more intense doublet member of the principal series of caesium in absorption is recorded sixty-second quantum state, whereas the weaker doublet member is recorded to the to the quantum state only. An empirical formula fitting the longer series to about ±0.03 fourteenth cm⁻¹ is given. The calculated series limit of 31406.32 cm⁻¹ corresponds to an ionization potential of 3.8929 volts for the caesium atom.

© 1949 Optical Society of America

The Optical Theory of the Spectral Sensitivity of a Caesium Oxide Photo-Cathode

Yoshihiro Sayama
J. Opt. Soc. Am. 39(2) 162-167 (1949)

Cadmium Spectra

A. G. Shenstone and J. T. Pittenger
J. Opt. Soc. Am. 39(3) 219-225 (1949)

Absorption Spectrum of Benzotrifluoride Vapor in the Near Ultraviolet*

H. Sponer and D. S. Lowe
J. Opt. Soc. Am. 39(10) 840-846 (1949)

Absorption Spectrum of 1,2,4-Trichlorobenzene in the Near Ultraviolet

Hedwig Kohn and H. Sponer
J. Opt. Soc. Am. 39(1) 75-85 (1949)

A Rapid Mobile Analyzer for Minute Amounts of Lead in Air

Henry Aughey
J. Opt. Soc. Am. 39(4) 292-293 (1949)