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Cesium Primary Frequency References

Published

Author(s)

Steven R. Jefferts, Thomas P. Heavner, Elizabeth A. Donley

Abstract

Primary frequency standards with stated inaccuracies of δf/f ~ 1015 or slightly better are in use today in several national timing laboratories. These standards, which are the most accurate in the world today, use laser-cooled cesium atoms to obtain this level of performance. We discuss the operation of these standards as well as possible future improvements that should see the inaccuracy of the realization of the second fall to the 1016 level over the next 5-10 years.
Citation
J. Metrol. Soc. India
Volume
21
Issue
4

Keywords

atomic clock, laser-cooling, primary frequency standard

Citation

Jefferts, S. , Heavner, T. and Donley, E. (2007), Cesium Primary Frequency References, J. Metrol. Soc. India, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50448 (Accessed March 5, 2024)
Created February 1, 2007, Updated February 17, 2017