Interferometric Wavelengths of Thorium Lines between 2650 A and 3400 A*
- 1 April 1962
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 52 (4) , 447-451
- https://doi.org/10.1364/josa.52.000447
Abstract
Interferometric wavelengths, suitable for use as secondary standards of class “B”, are given for 68 thorium lines in the range 2650 to 3400 A, as emitted by a thorium-iodide electrodeless discharge tube without carrier gas. The rms deviation from the mean is 3×10−4 A. The method of preparation of a reliable and very intense thorium electrodeless tube is described.Keywords
This publication has 11 references indexed in Scilit:
- Rapid Precision Wave Number Measurements from Fabry-Perot Interferograms*Journal of the Optical Society of America, 1960
- 14. Commission des Etalons de Longueur D’Onde et des Tables de SpectresTransactions of the International Astronomical Union, 1960
- Wavelengths from thorium-halide lampsJournal of Research of the National Bureau of Standards, 1958
- Electrodeless Discharge Tubes Containing Rare Earth and Heavy Element Halides*Journal of the Optical Society of America, 1957
- MEASUREMENT BY PHOTOELECTRIC FRINGE SCANNING OF THE PRESSURE SHIFT OF Hg-198 EMISSION LINESCanadian Journal of Physics, 1957
- Wavelengths from iron-halide lampsJournal of Research of the National Bureau of Standards, 1957
- Electrodeless Metal-Halide LampsJournal of the Optical Society of America, 1953
- Electrodeless Discharge Lamps Containing Metallic VaporsJournal of the Optical Society of America, 1952
- Lamps and wavelengths of mercury 198Journal of Research of the National Bureau of Standards, 1950
- Interference Spectroscopy Part IJournal of the Optical Society of America, 1941