• 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.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2816599