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John Bernard
Phone: 613-993-2181
Fax: 613-952-1394
Email: John.Bernard@nrc-cnrc.gc.ca
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Frequency & Time Standards
Research in this project is focused on the generation of the SI units of time (the second) and frequency (the hertz) for Canada in accordance with their internationally accepted definitions. Primary cesium clocks and hydrogen masers are maintained to provide internationally coordinated continuous time scales and frequency standards. Current research focuses on the stability and accuracy of the NRC Cesium Fountain, and on the development of an optical lattice clock.
A significant milestone has been reached in the development of the cesium fountain atomic clock at the Institute for National Measurement Standards. Recent measurements have shown that the fountain clock could be NRC's most stable cesium clock. [More]
Generation of the SI unit of time and frequency
The Group maintains primary cesium clocks and other facilities to provide internationally coordinated, continuous time scales and frequency standards in our laboratories. [More]
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