TY - JOUR AU - Gentile, Thomas AU - Walker, T AU - Babcock, E AU - Qiang, AU - Chen, Wangchun C2 - Physical Review A DA - 2014-07-02 DO - https://doi.org/10.1063/1.4886583 LA - en PB - Physical Review A PY - 2014 TI - On the limits of spin-exchange optical pumping of 3He ER -