DocumentCode
1059175
Title
Hg+ trapped ion standard with the superconducting cavity maser oscillator
Author
Prestage, J.D. ; Tjoelker, R.L. ; Wang, R.T. ; Dick, G.J. ; Maleki, L.
Author_Institution
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Volume
42
Issue
2
fYear
1993
fDate
4/1/1993 12:00:00 AM
Firstpage
200
Lastpage
205
Abstract
The frequency stability of an atomic standard based on 199 Hg+ ions confined in a hybrid RF/DC linear trap is described. The 40.5-GHz clock transition has been measured to be 17 mHz wide, representing a quality factor greater than 2×1012. A 160-mHz line is used to steer the output of a 5-MHz crystal oscillator to obtain a stability of 2×10-15 for 24000-s averaging times. In a separate measurement, a 37-mHz line is used to steer the output of the superconducting cavity maser oscillator to reach 1×10-15 stability at 10000 s
Keywords
atomic beams; atomic clocks; frequency measurement; frequency stability; masers; measurement standards; mercury (metal); positive ions; superconducting devices; 40.5 GHz; 5 MHz; Hg+; atomic standard; clock transition; frequency stability; hybrid RF/DC linear trap; quality factor; superconducting cavity maser oscillator; trapped ion standard; Clocks; Electron traps; Extraterrestrial measurements; Frequency; Masers; Mercury (metals); Optical buffering; Optical filters; Oscillators; Stability;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.278549
Filename
278549
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