Title :
Second generation cesium fountain primary frequency standards at NIST
Author :
Jefferts, S.R. ; Heavner, T.P. ; Donley, E.A. ; Shirley, J.H. ; Parker, T.E.
Author_Institution :
Time & Frequency Div., Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
In this paper, a rationale for the design and construction of a second generation cesium fountain primary frequency standard at NIST is presented. The proposed system supports a short-term stability and a frequency inaccuracy. These stabilities are more than adequate to support frequency transfer systems. With transverse cooling, simultaneous frequency accuracy shall be achievable.
Keywords :
caesium; frequency stability; frequency standards; laser cooling; measurement uncertainty; radiative shifts; time measurement; transfer standards; Cs; NIST; frequency accuracy; frequency inaccuracy; frequency transfer systems; second generation cesium fountain primary frequency standards; short-term stability; transverse cooling; Clocks; Flywheels; Frequency conversion; Global Positioning System; Hydrogen; Laboratories; Metrology; NIST; Stability analysis; Uncertainty;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition Jointly with the 17th European Frequency and Time Forum, 2003. Proceedings of the 2003 IEEE International
Print_ISBN :
0-7803-7688-9
DOI :
10.1109/FREQ.2003.1275241
