{sup 129}Xe-Cs (D{sub 1},D{sub 2}) versus {sup 129}Xe-Rb (D{sub 1}) spin-exchange optical pumping at high xenon densities using high-power laser diode arrays

Journal Article · Sun May 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.053428· OSTI ID:21546811

Whiting, Nicholas; Eschmann, Neil A; Goodson, Boyd M; Barlow, Michael J ^[1]

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1. Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901 (United States)

We investigate {sup 129}Xe-Cs (D{sub 1},D{sub 2}) spin exchange optical pumping (SEOP) at high Xe densities ({approx}0.12-2.44 amagat) using newly available high-power (>40 W) laser diode arrays and compare with {sup 129}Xe-Rb D{sub 1} SEOP under similar conditions. At elevated Xe densities, the spin-exchange rate (per alkali-metal atom, {gamma}{sup '}) for Cs-{sup 129}Xe is {approx}1.5-fold greater than that for Rb-{sup 129}Xe. Higher spin-exchange rates and lower {sup 129}Xe spin-destruction rates for Cs-{sup 129}Xe versus Rb-{sup 129}Xe contribute to {approx}twofold improvement in {sup 129}Xe nuclear spin polarization measured at 9.4 T - with the largest gains observed at the highest Xe densities.

• OSTI ID: 21546811
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
AMPLIFICATION
ATOMS
CESIUM
DAYS LIVING RADIOISOTOPES
DENSITY
ELEMENTS
EVEN-ODD NUCLEI
FLUIDS
GAIN
GASES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LASERS
METALS
NONMETALS
NUCLEI
OPTICAL PUMPING
ORIENTATION
PHYSICAL PROPERTIES
PUMPING
RADIOISOTOPES
RARE GASES
RUBIDIUM
SPIN EXCHANGE
SPIN ORIENTATION
STABLE ISOTOPES
XENON
XENON 129
XENON ISOTOPES