Collisional 3He and 129Xe frequency shifts in Rb-noble-gas mixtures.
نویسندگان
چکیده
The Fermi-contact interaction that characterizes collisional spin exchange of a noble gas with an alkali-metal vapor also gives rise to NMR and EPR frequency shifts of the noble-gas nucleus and the alkali-metal atom, respectively. We have measured the enhancement factor κ0 that characterizes these shifts for Rb-129Xe to be 493±31, making use of the previously measured value of κ0 for Rb-3He. This result allows accurate 129Xe polarimetry with no need to reference a thermal-equilibrium NMR signal.
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ورودعنوان ژورنال:
- Physical review letters
دوره 106 19 شماره
صفحات -
تاریخ انتشار 2011