DocumentCode :
2816599
Title :
New measurement of the rubidium hyperfine frequency using LNE-SYRTE fountain ensemble
Author :
Guéna, J. ; Chapelet, F. ; Rosenbusch, P. ; Laurent, P. ; Abgrall, M. ; Rovera, G.D. ; Santarelli, G. ; Bize, S. ; Clairon, A. ; Tobar, M.E.
Author_Institution :
LNE-SYRTE, UMR CNRS, Paris
fYear :
2008
fDate :
19-21 May 2008
Firstpage :
366
Lastpage :
370
Abstract :
We report the operation of LNE-SYRTE FO2 fountain with rubidium 87 after several substantial improvements. With these improvements, FO2-Rb fountain reaches a similar level of performance as LNE-SYRTE cesium fountains with an accuracy of 4.5 parts in 1016. This Rb fountain has been compared to LNE-SYRTE FOM transportable fountain for more than 50 days, down to a resolution <10-16. The Rb hyperfine frequency is measured with a total uncertainty of 1.1 x 10-15.
Keywords :
atomic clocks; frequency measurement; hyperfine structure; rubidium; LNE-SYRTE FO2 fountain; LNE-SYRTE FOM transportable fountain; LNE-SYRTE cesium fountains; LNE-SYRTE fountain ensemble; rubidium 87; rubidium hyperfine frequency; Australia; Frequency measurement; Masers; Microwave generation; Oscillators; Phase noise; Physics; Road transportation; Signal generators; Synthesizers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Frequency Control Symposium, 2008 IEEE International
Conference_Location :
Honolulu, HI
ISSN :
1075-6787
Print_ISBN :
978-1-4244-1794-0
Electronic_ISBN :
1075-6787
Type :
conf
DOI :
10.1109/FREQ.2008.4623021
Filename :
4623021
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2816599
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