Published June 2020
| Version v1
Journal article
First accuracy evaluation of the NRC-FCs2 primary frequency standard
Creators
- 1. National Research Council Canada, Ottawa, ON, K1A 0R6, (Canada)
- 2. National Physical Laboratory, Hampton Road, Teddington, TW11 0LW, (United Kingdom)
- 3. Department of Physics, The Pennsylvania State University, University Park, PA 16802, (United States)
Description
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 x 10-13 at 1 second of averaging time. The typical overall fractional type B uncertainty is 2.3 x 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) x 10-16. (authors)
Availability note (English)
Available from doi: https://doi.org/10.1088/1681-7575/ab7c54Additional details
Identifiers
Publishing Information
- Journal Title
- Metrologia
- Journal Volume
- 57
- Journal Issue
- no.3
- Journal Page Range
- p. 035010.1-035010.16
- ISSN
- 0026-1394
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 51057341
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ACCURACY; ATOMIC CLOCKS; CALIBRATION STANDARDS; DATA COVARIANCES; FREQUENCY MEASUREMENT; LASERS; MICROWAVE RADIATION; TIME MEASUREMENT
- Descriptors DEC
- ELECTROMAGNETIC RADIATION; RADIATIONS; STANDARDS
Optional Information
- Notes
- 52 refs.