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physics.atom-ph2003
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…
physics.atom-ph2003
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)…