Long-term comparison of caesium fountain primary frequency standards

Metrologia

Volumn 47, Issue 1, 2010, Pages 1-10

  Parker, Thomas E ^a  

^a NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

FRACTIONAL FREQUENCIES; FREQUENCY DIFFERENCES; INTERNATIONAL ATOMIC TIME; PRIMARY FREQUENCY STANDARD; WEIGHTED MEAN;

FOUNTAINS; FREQUENCY STANDARDS;

CESIUM;

EID: 74849091643     PISSN: 00261394     EISSN: 16817575     Source Type: Journal    
DOI: 10.1088/0026-1394/47/1/001     Document Type: Article

References (26)

1. Clairon A, Ghezali S, Santarelli G, Laurent Ph, Lea S, Bahoura M, Simon E, Weyers S and Szymaniec K 1996 Preliminary accuracy evaluation of a cesium fountain frequency standard Proc. 5th Symp. on Frequency Standards and Metrology (Woods Hole, MA) (Singapore: World Scientific) pp 49-59
2. Parker T E, Hetzel P, Jefferts S R, Weyers S, Nelson L M, Bauch A and Levine J 2001 First comparison of remote cesium fountains Proc. 2001 IEEE Int. Frequency Control Symp. (Seattle, WA) pp 63-9
3. Richard J Y et al 2004 Comparison of remote cesium fountains using GPS P3 and TWSTFT links Proc. 18th European Frequency and Time Forum (Guildford, UK)
4. -15 uncertainty level Metrologia 43 109-20
5. Fujieda M, Gotoh T, Piester D, Kumagai M, Weyers S, Bauch A, Wynands R and Hosokawa M 2007 First comparison of primary frequency standards between Europe and Asia Proc. Joint Meeting of the 21st European Frequency and Time Forum and the 2007 IEEE Int. Frequency Control Symp. (Geneva, Switzerland) pp 937-40
6. Vian C et al 2005 BNM-SYRTE fountains: recent results IEEE Trans. Instrum. Meas. 54 833-6
7. -16 level Proc. 19th European Frequency and Time Forum (Besançon, France) pp 52-7
8. Jefferts S R et al 2002 Accuracy evaluation of NIST-F1 Metrologia 39 321-36
9. Heavner T P, Jefferts S R, Donley E A, Shirley J H and Parker T E 2005 NIST-F1: recent improvements and accuracy evaluations Metrologia 42 411-22
10. Parker T E, Jefferts S R, Heavner T P and Donley E A 2005 Operation of the NIST-F1 caesium fountain primary frequency standard with a maser ensemble, including the impact of frequency transfer noise Metrologia 42 423-30
11. Weyers S, Hübner U, Schröder R, Tamm Chr and Bauch A 2001 Uncertainty evaluation of the atomic caesium fountain CSF1 of the PTB Metrologia 38 343-52
12. Weyers S, Bauch A, Schröder R and Tamm Chr 2002 The atomic caesium fountain CSF1 of PTB Proc. 6th Symp. on Frequency Standards and Metrology (St Andrews, UK) (Singapore: World Scientific) pp 64-71
13. Marion H et al 2003 Search for variations of fundamental constants using atomic fountain clocks Phys. Rev. Lett. 90 150801
14. Levi F, Calonico D, Lorini L and Godone A 2006 IEN-CsF1 primary frequency standard at INRIM: accuracy evaluation and TAI calibrations Metrologia 43 545-55
15. Szymaniec K, Chalupczak W, Whibberley P B, Lea S N and Henderson D 2005 Evaluation of the primary frequency standard NPL-CsF1 Metrologia 42 49-57
16. Kurosu T, Fukuyama Y, Koga Y and Abe K 2004 Preliminary evaluation of the Cs atomic fountain frequency standard at NMIJ/AIST IEEE Trans. Instrum. Meas. 53 466-71
17. Kumagai M, Ito H, Kajita M and Hosokawa M 2008 Evaluation of caesium atomic fountain NICT-CsF1 Metrologia 45 139-48
18. -1993 Guide to the Expression of Uncertainty in Measurement 1st edn (Geneva: International Organization for Standards) ISBN 92-67-10188-9
19. Wolf P et al 2006 Comparing high accuracy frequency standards via TAI Proc. 20th European Frequency and Time Forum (Braunschweig, Germany) pp 476-85
20. Guinot B and Arias E F 2005 Atomic time-keeping from 1955 to the present Metrologia 42 S20-30
21. Parker T E 2001 Comparing and evaluating the performance of primary frequency standards: Impact of dead time Proc. 2001 IEEE Int. Frequency Control Symp. (Seattle, WA) pp 57-62
22. Yu D H, Weiss M and Parker T E 2007 Uncertainty of a frequency comparison with distributed dead time and measurement interval offset Metrologia 44 91-6
23. Parker T E 1999 Hydrogen maser ensemble performance and characterization of frequency standards Proc. 1999 Joint Meeting of the IEEE Int. Frequency Control Symp. and the European Frequency and Time Forum (Besançon, France) pp 173-6
24. Parker T E and Panfilo G 2007 Experimental analysis of frequency transfer uncertainty Proc. Joint Meeting of the 21st European Frequency and Time Forum and the 2007 IEEE Int. Frequency Control Symp. (Geneva, Switzerland) pp 986-91
25. Panfilo G and Parker T E 2009 A theoretical and experimental analysis of frequency transfer uncertainty, including frequency transfer into TAI Metrologia submitted
26. Kacker R, Datla R and Parr A 2002 Combined results and associated uncertainty from interlaboratory evaluations based on the ISO Guide Metrologia 39 279-93