Abstract

Isotope shift measurements were made on Cm²⁴² and Cm²⁴⁴. Both samples had an isotopic purity of better than 90%. Measurements were made in the spectral region between 3050 and 5250 A. One hundred and eighty-three lines of curium were recorded, one hundred and forty-eight of which showed isotope shift. Both positive and negative shifts were found. The magnitude of the shift ranged up to 1.31 kaysers.

© 1956 Optical Society of America

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)

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Isotope Shift in the Arc Spectrum of Zinc

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