First accuracy evaluation of the NRC-FCs2 primary frequency standard

Scott Beattie; Bin Jian; John Alcock; Marina Gertsvolf; Rich Hendricks; Krzysztof Szymaniec; Kurt Gibble

doi:10.1088/1681-7575/ab7c54

First accuracy evaluation of the NRC-FCs2 primary frequency standard

Scott Beattie, Bin Jian, John Alcock, Marina Gertsvolf, Rich Hendricks, Krzysztof Szymaniec, Kurt Gibble

Physics

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

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) 10^-16

Original language	English (US)
Article number	035010
Journal	Metrologia
Volume	57
Issue number	3
DOIs	https://doi.org/10.1088/1681-7575/ab7c54
State	Published - Jun 2020

All Science Journal Classification (ASJC) codes

Engineering(all)

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10.1088/1681-7575/ab7c54

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abstract = "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) 10-16 ",

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AU - Beattie, Scott

AU - Jian, Bin

AU - Alcock, John

AU - Gertsvolf, Marina

AU - Hendricks, Rich

AU - Szymaniec, Krzysztof

AU - Gibble, Kurt

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) 10-16

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) 10-16

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First accuracy evaluation of the NRC-FCs2 primary frequency standard

Abstract

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