title: Collisional 3He and 129Xe frequency shifts in Rb-noble-gas mixtures.
abstract: 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.
authors.affiliation: Department of Physics and Astronomy, University of Utah, 115 South 1400 East, Salt Lake City, Utah 84112-0830, USA.
authors.forename: Z L
authors.initials: ZL
authors.lastname: Ma
authors.forename: E G
authors.initials: EG
authors.lastname: Sorte
authors.forename: B
authors.initials: B
authors.lastname: Saam
mesh_terms: D004578:Electron Spin Resonance Spectroscopy / Q000295:instrumentation; D006371:Helium / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000295:instrumentation; D005741:Noble Gases / Q000737:chemistry*; D012413:Rubidium / Q000737:chemistry*; D014978:Xenon / Q000737:chemistry*
chemical_list: D005741:Noble Gases; D006371:Helium; D014978:Xenon; D012413:Rubidium