Parker, T.
, Jefferts, S.
and Heavner, T.
(2010),
Medium-Term Frequency Stability of Hydrogen Masers as Measured by a Cesium Fountain, Proc. 2010 IEEE Intl. Freq. Cont. Symp., Newport Beach, CA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906021 (Accessed May 1, 2026)
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Medium-Term Frequency Stability of Hydrogen Masers as Measured by a Cesium Fountain
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Abstract
Abstract Hydrogen masers are used extensively in time scale ensembles, but the frequency drift must be accurately known. NIST-F1, the cesium fountain primary frequency standard at the National Institute of Standards and Technology, now operates nearly every month and has provided an unprecedented opportunity to characterize the medium-term frequency stability (tau = 30 to 90 days) of six hydrogen masers. An unexpected observation was a moderate level of correlation in the frequency fluctuations of all the masers.Proceedings Title
Proc. 2010 IEEE Intl. Freq. Cont. Symp.
Conference Dates
June 1-4, 2010
Conference Location
Newport Beach, CA
Pub Type
Conferences
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Keywords
atomic frequency standards, cesium fountain, hydrogen maser
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Created June 2, 2010, Updated February 19, 2017