Germanium Standard Wavelengths in the Vacuum Ultraviolet*

Abstract

The Ge I lines proposed by Meissner, VanVeld, and Andrew as standards in the vacuum ultraviolet have been investigated with respect to their usefulness as standards. After elimination of nine lines not fit for the purpose there remain 75 lines which can serve as auxiliary standards. These standards were employed for obtaining improved wavelengths in the spectra of Ge I, Ge II, and Ne II. For Ge II improved level values were derived from this measurement which also revealed that the term 8f2F05/2,7/2 is inverted.