Towards trace detection of 85Kr by two-step excitation and field ionization
Published Jan 16, 2002 · Xinghua Li, J. Lassen, H. Schuessler
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Abstract
We have implemented a new laser-based detection scheme for the rare krypton isotopes. The scheme utilizes two-step excitation of metastable krypton atoms in a nearly perfect three-level system followed by field ionization. The detection scheme was realized experimentally with a mass-separated atom beam. A total detection efficiency of about 10% is obtained.
Study Snapshot
Key takeawayThis laser-based detection scheme for rare krypton isotopes achieves a 10% detection efficiency by using two-step excitation and field ionization, with potential applications in trace element analysis.
PopulationOlder adults (50-71 years)
Sample size24
MethodsObservational
OutcomesBody Mass Index projections
ResultsSocial networks mitigate obesity in older groups.