Abstract

The hyperfine-structure separations of Tl²⁰³ and Tl²⁰⁵ in the $7^2{S}_{\frac{1}{2}}$ state were obtained from the 3776-A resonance line with a grating spectrograph. These measurements were carried out because previously quoted values resulted from a study of the 5350-A transition ending on the $6^2{P}_{\frac{3}{2}}$ state, the hyperfine structure of which was inferred to be 8 mk, while recent atomic-beam magnetic-resonance experiments showed $\mathrm{\Delta }\nu (6^2{P}_{\frac{3}{2}})\approx 17$ mk. Our results for $\mathrm{\Delta }\nu (7^2{S}_{\frac{1}{2}})$ are 405±5 mk and 412±4 mk for Tl²⁰³ and Tl²⁰⁵.

© 1959 Optical Society of America

Hyperfine Structure and Isotope Shift in the 7 ²S_1/2–6 ²P_1/2 Transition of Natural Thallium by Atomic Beam Absorption*

C. J. Schuler, M. Çiftan, L. C. Bradley, and H. H. Stroke
J. Opt. Soc. Am. 52(5) 501-503 (1962)

Hyperfine Structure, Nuclear Moments, and Isotope Shifts of ¹⁹⁷Tl and ¹⁹⁸Tl

Sumner P. Davis, Herbert Kleiman, David Goorvitch, and Tin Aung
J. Opt. Soc. Am. 56(11) 1604-1606 (1966)

Hyperfine Structure of ²⁰⁹Bismuth in the 6p²(P3₀)7s P4₁₂ State*

R. Chuckrow, P. C. Magnante, and H. H. Stroke
J. Opt. Soc. Am. 58(7) 922-923 (1968)

Hyperfine structure and isotope shift of 52-h ²⁰³Pb in the 6p^{2 3}P₀–6p7s³P₁ 283.3-nm transition

F. A. Moscatelli, O. Redi, H. H. Stroke, and R. L. Wigginst
J. Opt. Soc. Am. B 4(8) 1297-1302 (1987)

Hyperfine-Structure Separations, Isotope Shifts, and Nuclear Magnetic Moments of the Radioactive Isotopes Tl¹⁹⁹, Tl²⁰⁰, Tl²⁰¹, Tl²⁰², and Tl²⁰⁴

R. J. Hull and H. H. Stroke
J. Opt. Soc. Am. 51(11) 1203-1212 (1961)