Title : 
First dual mode operation of the Cs/Rb FO2 double fountain at SYRTE
         
        
            Author : 
Guéna, J. ; Rosenbusch, P. ; Laurent, Ph ; Abgrall, M. ; Rovera, G.D. ; Santarelli, G. ; Bize, S. ; Clairon, A. ; Tobar, M.E.
         
        
            Author_Institution : 
Obs. de Paris, LNE-SYRTE, UPMC, Paris, France
         
        
        
        
        
        
            Abstract : 
This paper presents the achievement of the dual atom clock operation of the FO2 double fountain at LNE-SYRTE with both Cs and Rb atoms launched simultaneously. We describe how it works, metrological characteristics and results of the first Rb/Cs frequency measurement campaign performed with FO2 as a dual atom clock, among which a new absolute frequency determination of the 87Rb hyperfine frequency.
         
        
            Keywords : 
atomic clocks; caesium; frequency measurement; hyperfine structure; rubidium; 87Rb hyperfine frequency; Cs; Cs/Rb FO2 double fountain; LNE-SYRTE; Rb; dual atom clock; frequency measurement; Atom optics; Atomic beams; Atomic measurements; Clocks; Frequency measurement; Laser beams; Magnetic field measurement; Optical collimators; Performance evaluation; Testing;
         
        
        
        
            Conference_Titel : 
Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International
         
        
            Conference_Location : 
Besancon
         
        
        
            Print_ISBN : 
978-1-4244-3511-1
         
        
            Electronic_ISBN : 
1075-6787
         
        
        
            DOI : 
10.1109/FREQ.2009.5168288