Abstract

Scattering cross sections were measured with the method of Gill and Heddle, but with dispersed incident flux. These measurements constitute a sensitive test for the presence of rare-gas quasimolecules. The ratio of Ar₂ to Ar at 100 torr was deduced to be 8.6 × 10⁻⁵. At 1090 Å the molecular cross section is estimated to be 1.6 × 10⁻¹⁸ cm². The attenuation cross section is 8.0 × 10⁻¹⁸ cm².

© 1970 Optical Society of America

Absorption Spectrum of the Argon Atom in the Vacuum-Ultraviolet Region

Kouichi Yoshino
J. Opt. Soc. Am. 60(9) 1220-1229 (1970)

Vacuum-Ultraviolet Atomic-Beam Light Source*

Glenn A. Govertsen and D. K. Anderson
J. Opt. Soc. Am. 60(5) 600-603 (1970)

Vacuum-Ultraviolet Series of Mg i and Mg ii*

David Goorvitch, Germaine Mehlman-Balloffet, and Francisco P. J. Valero
J. Opt. Soc. Am. 60(11) 1458-1461 (1970)

Ultraviolet Emission Spectra of High-Pressure Rare Gases

Philip M. Johnson
J. Opt. Soc. Am. 60(12) 1669-1674 (1970)

Vacuum Ultraviolet Plasma Arc Radiation Source for the 300–1000-A Wavelength Region

M. E. Levy and R. E. Huffman
Appl. Opt. 9(1) 41-47 (1970)