Abstract

Temperature and pressure changes during observation by means of a Fabry-Perot interferometer are discussed. A temperature regulated vacuum chamber has been designed to minimize the effects of these changes. Details of a simple and efficient interferometer and housing are given. A convenient and satisfactory oven for holding a Michelson lamp at any desired temperature between that of the room to the standard 315°C is described in detail. The vacuum interferometer, the lamp house, and the assembly used to compare the spectra of Hg-198 and Cd-114 are shown by diagram and drawing.

© 1956 Optical Society of America

Energy Levels and Wavelengths of Natural Cadmium and of Cadmium-114

Keivin Burns and Kenneth B. Adams
J. Opt. Soc. Am. 46(2) 94-99 (1956)

Quenching of Photoconductivity in Cadmium Sulfide

Simpei Tutihasi
J. Opt. Soc. Am. 46(6) 443-448 (1956)

Interferometric Wavelength Measurements of Germanium Lines of a Hollow Cathode Discharge*

Robert D. VanVeld and K. W. Meissner
J. Opt. Soc. Am. 46(8) 598-604 (1956)

Preliminary Report on the Isotopic Structure of the Cadmium Primary Standard of Wavelength

John H. Wise and Kenneth L. Vander Sluis
J. Opt. Soc. Am. 46(8) 587-589 (1956)

Reflectance of Evaporated Aluminum in the Vacuum Ultraviolet

G. Hass, W. R. Hunter, and R. Tousey
J. Opt. Soc. Am. 46(12) 1009-1012 (1956)