Precision Magnetic Moment Determinations for 43-minHg199mand Other Isomers of Mercury

Optical pumping with the 2537 Å intercombination line of mercury has been used to orient four nuclear spin $I=\frac{13}{2}$ isomers of mercury and two $I=\frac{1}{2}$ radiosiotopes as well as stable $I=\frac{1}{2}$ ${}_{}{}^{199}{}_{}{}^{}\mathrm{Hg}$ and $I=\frac{3}{2}$ ${}_{}{}^{201}{}_{}{}^{}\mathrm{Hg}$. Measurements of ratios of the nuclear-magnetic-resonance frequencies of these isotopes to that of ${}_{}{}^{199}{}_{}{}^{}\mathrm{Hg}$ contained in the same sample cell have been made. The results are: