DocumentCode :
2679646
Title :
Preliminary results from the USNO cesium fountain
Author :
Swanson, Thomas B. ; Burt, Eric A. ; Ekstrom, Christopher R.
Author_Institution :
US Naval Obs., Washington, DC, USA
fYear :
2000
fDate :
2000
Firstpage :
672
Lastpage :
675
Abstract :
We are pursuing a program that will integrate atomic fountain-based clocks into the U. S. Naval Observatory (USNO) Master Clock. We will present data from our cesium atomic fountain, including initial measurements of our device relative to an active hydrogen maser on both the clock transition and a magnetic field sensitive transition. As this maser is part of the USNO timing ensemble, we can easily relate the frequency and frequency stability of the fountain to any of our clocks or internal timescales. We will also present several possible continuous operation strategies for the incorporation of this new class of clock into the local clock ensemble
Keywords :
atomic clocks; caesium; frequency stability; sensitivity; Cs; Cs atomic fountain; USNO; active hydrogen maser; atomic fountain-based clocks; clock transition; frequency stability; internal timescales; magnetic field sensitive transition; microwave fringes; Atomic beams; Atomic clocks; Atomic measurements; Fiber lasers; Frequency; Laser beams; Masers; Observatories; Optical fibers; Stability;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Frequency Control Symposium and Exhibition, 2000. Proceedings of the 2000 IEEE/EIA International
Conference_Location :
Kansas City, MO
ISSN :
1075-6787
Print_ISBN :
0-7803-5838-4
Type :
conf
DOI :
10.1109/FREQ.2000.887435
Filename :
887435
Link To Document :
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