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 ${\left|{\mu }_I\right|}_{\mathrm{uncorrected}}=0.5726\mathrm{}\left(6\right)\mathrm{}{\mu }_N$ 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 ${10}^{-20\mathrm{}}$ ${\mathrm{cm}}^2$.