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Physics of systematic frequency variations in hydrogen masersThe frequency stability of hydrogen masers for intervals longer that 10(exp 4) seconds is limited at present by systematic processes. Researchers discuss 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. Based upon estimates of the magnitudes of systematic effects, they find that the primary internal mechanisms currently limiting long-term maser frequency stability are cavity pulling, at the level parts in 10(exp 15) per day, and wall shift variations, at the level of parts in 10(exp 16) to parts in 10(exp 15) per day. They discuss strategies for reducing systematic frequency variations.
Document ID
19910016482
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mattison, Edward M.
(Smithsonian Astrophysical Observatory Cambridge, MA, United States)
Date Acquired
September 6, 2013
Publication Date
May 1, 1990
Publication Information
Publication: JPL, The 22nd Annual Precise Time and Time Interval (PTTI) Applications and Planning Meeting
Subject Category
Lasers And Masers
Accession Number
91N25796
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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