TY - JOUR
T1 - First accuracy evaluation of the NRC-FCs2 primary frequency standard
AU - Beattie, Scott
AU - Jian, Bin
AU - Alcock, John
AU - Gertsvolf, Marina
AU - Hendricks, Rich
AU - Szymaniec, Krzysztof
AU - Gibble, Kurt
N1 - Publisher Copyright:
© Canadian 2020 Crown copyright.
PY - 2020/6
Y1 - 2020/6
N2 - We report the first accuracy evaluation of NRC-FCs2, an atomic fountain clock developed at the National Research Council Canada. The short term stability at high atomic density is 1.1 10-13 at 1 second of averaging time. The typical overall fractional type B uncertainty is 2.3 10-16. GNSS-based frequency comparisons of NRC-FCs2 with the SI second, as reported by the BIPM over fourteen months, give a fractional frequency difference of -2.4(3.7)
AB - We report the first accuracy evaluation of NRC-FCs2, an atomic fountain clock developed at the National Research Council Canada. The short term stability at high atomic density is 1.1 10-13 at 1 second of averaging time. The typical overall fractional type B uncertainty is 2.3 10-16. GNSS-based frequency comparisons of NRC-FCs2 with the SI second, as reported by the BIPM over fourteen months, give a fractional frequency difference of -2.4(3.7)
UR - https://www.scopus.com/pages/publications/85085727429
UR - https://www.scopus.com/pages/publications/85085727429#tab=citedBy
U2 - 10.1088/1681-7575/ab7c54
DO - 10.1088/1681-7575/ab7c54
M3 - Article
AN - SCOPUS:85085727429
SN - 0026-1394
VL - 57
JO - Metrologia
JF - Metrologia
IS - 3
M1 - 035010
ER -