Abstract

An improved value of the ²⁰³Hg–¹⁹⁸Hg isotope shift in the 2537 Å ³P₁–¹S₀ line of mercury was determined from emission spectroscopy, with mass-separated samples, and from absorption spectroscopy with unenriched pile-produced isotope. The spectroscopic data were analyzed to yield the isotope shift by use of precise hfs interaction constants that we obtained previously from a level-crossing experiment. The new value for the ²⁰³Hg–¹⁹⁸Hg isotope shift is IS(203–198) = 0.392 ± 0.006 cm^{−1; 203}Hg lies at the lower-wave-number side. The experiment demonstrates the advantages of absorption spectroscopy for samples of low isotopic purity. The application of this technique to work with small samples is also discussed.

© 1975 Optical Society of America

Hyperfine Structure, Isotope, and Isomer Shifts in Hg¹⁹³m, Hg¹⁹⁴, Hg¹⁹⁵m, and Hg¹⁹⁵—Comments on the Paper of Kleiman and Davis*

W. J. Tomlinson and H. H. Stroke
J. Opt. Soc. Am. 53(7) 828-830 (1963)

Hyperfine Structures, Isotope Shifts, and Nuclear Moments of Hg¹⁹⁵, Hg¹⁹⁵m, and Hg¹⁹⁴†

Herbert Kleiman and Sumner P. Davis
J. Opt. Soc. Am. 53(7) 822-827 (1963)

Isotope Shift between ²⁰⁹Bi and 6.3-day ²⁰⁶Bi*

P. C. Magnante and H. H. Stroke
J. Opt. Soc. Am. 59(7) 836-841 (1969)

Determination of Hg²⁰² and Other Mercury Isotopes in Samples of Mercury Vapor by Mercury Resonance Radiation Absorbiometry*

K. R. Osborn and H. E. Gunning
J. Opt. Soc. Am. 45(7) 552-555 (1955)

Isotope shift of 3 × 10⁵-yr ²⁰²Pb in the 6p² ³P₀−6p7s ³P1° 283.3-nm resonance line

F. A. Moscatelli, O. Redi, H. H. Stroke, R. L. Wiggins, and R. A. Naumann
J. Opt. Soc. Am. 73(2) 156-159 (1983)