Title :
Update on a comparison of cesium fountain primary frequency standards
Author :
Parker, Thomas E.
Author_Institution :
Time & Freq. Div., Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
An update to a previous long term frequency comparison of cesium fountain primary frequency standards has been made. This update covers the approximate three year interval from March 2008 to March 2011 and also includes two new standards. Also, simulated data have been used to estimate the biases and standard deviation of the Birge ratio as a function of the degrees of freedom.
Keywords :
caesium; frequency standards; Birge ratio; Cs; fountain primary frequency standards; Calculators; Frequency conversion; Laboratories; NIST; Time frequency analysis; Uncertainty;
Conference_Titel :
Frequency Control and the European Frequency and Time Forum (FCS), 2011 Joint Conference of the IEEE International
Conference_Location :
San Fransisco, CA
Print_ISBN :
978-1-61284-111-3
DOI :
10.1109/FCS.2011.5977749
