58 citations · 58 across the 2 of their papers we have counts for
5 papers
Tracer Applications of Noble Gas Radionuclides in the Geosciences
Z. -T. Lu, P. Schlosser, W. M. Smethie +8
The noble gas radionuclides, including 81Kr (half-life = 229,000 yr), 85Kr (11 yr), and 39Ar (269 yr), possess nearly ideal chemical and physical properties for studies of earth an…
Ar-39 Detection at the 10^-16 Isotopic Abundance Level with Atom Trap Trace Analysis
W. Jiang, W. D. Williams, K. Bailey +8
Atom Trap Trace Analysis (ATTA), a laser-based atom counting method, has been applied to analyze atmospheric Ar-39 (half-life = 269 yr), a cosmogenic isotope with an isotopic abund…
One million year old groundwater in the Sahara revealed by krypton-81 and chlorine-36
N. C. Sturchio, X. Du, R. Purtschert +15
Measurements of 81Kr/Kr in deep groundwater from the Nubian Aquifer (Egypt) were performed by a new laser-based atom-counting method. 81Kr ages range from \~2x10^5 to ~1x10^6 yr, c…
Laser Spectroscopic Measurement of Helium Isotope Ratios
L. -B. Wang, P. Mueller, R. J. Holt +4
A sensitive laser spectroscopic method has been applied to the quantitative determination of the isotope ratio of helium at the level of 3He/4He = 10^-7 - 10^-5. The resonant absor…
A New Method of Measuring 81Kr and 85Kr Abundances in Environmental Samples
X. Du, R. Purtschert, K. Bailey +7
We demonstrate a new method for determining the 81Kr/Kr ratio in environmental samples based upon two measurements: the 85Kr/81Kr ratio measured by Atom Trap Trace Analysis (ATTA)…