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Physics of systematic frequency variations in hydrogen masersThe frequency stability of hydrogen masers for intervals longer than 10 exp 4 s is currently limited by systematic processes. The physics of frequency-determining mechanisms internal to the maser that are susceptible to systematic variations, and the connections between these internal mechanisms and external environmental factors are discussed. From estimates of the magnitudes of systematic effects, it is found that the primary internal mechanisms limiting long-term maser frequency stability are cavity pulling, at the level of parts in 1015 per day, and wall shift variations, at the level of parts in 10 exp 16 to parts in 10 exp 15 per day. Strategies for reducing systematic frequency variations are discussed.
Document ID
19920056200
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mattison, Edward M.
(Smithsonian Astrophysical Observatory Cambridge, MA, United States)
Date Acquired
August 15, 2013
Publication Date
March 1, 1992
Publication Information
Publication: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume: 39
Issue: 2, Ma
ISSN: 0885-3010
Subject Category
Lasers And Masers
Accession Number
92A38824
Distribution Limits
Public
Copyright
Other

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