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 8f ²F⁰_5/2,7/2 is inverted.

© 1958 Optical Society of America

Germanium Vacuum Ultraviolet Ritz Standards*

Victor Kaufman and Kenneth L. Andrew
J. Opt. Soc. Am. 52(11) 1223-1237 (1962)

New Germanium Standard Wavelengths in the Region from 1998 A to 1630 A*

K. L. Andrew and K. W. Meissner
J. Opt. Soc. Am. 48(1) 31-33 (1958)

Provisional Wavelength Standards in the Vacuum Ultraviolet*

P. G. Wilkinson
J. Opt. Soc. Am. 45(10) 862-867 (1955)

Improved Cu ii Standard Wavelengths in the Vacuum Ultraviolet*

J. Reader, K. W. Meissner, and K. L. Andrew
J. Opt. Soc. Am. 50(3) 221-227 (1960)

Proposed Standard Wavelengths in the Vacuum Ultraviolet. Spectra of Ge, Ne, C, Hg, and N†

P. G. Wilkinson and K. L. Andrew
J. Opt. Soc. Am. 53(6) 710-717 (1963)