Optical Orientation of theP03Ground State ofPb207

Abstract

The method of optical pumping of diamagnetic atoms with zero orbital angular momentum ($^{1}S_{0}$) has been extended to an atom with nonzero orbital angular momentum ($^{3}P_{0}$), yielding ${|{\ensuremath{\mu}}_{I}|}_{\mathrm{uncorrected}}=0.5726(6){\ensuremath{\mu}}_{N}$ for the nuclear moment of ${\mathrm{Pb}}^{207}$. The cross sections for disorientation by collisions with the inert gases, hydrogen, and nitrogen are all less than ${10}^{\ensuremath{-}20}$ ${\mathrm{cm}}^{2}$.