Cesium Beam Primary Frequency Standards at NRC
Abstract
The accuracy and long-term stability of time scales are established and maintained by reference to the primary frequency standards built and operated by national standards laboratories. The internationally accepted definition of the second is the specification for these cesium beam primary frequency standards. The experience of NRC is continuously operating such standards as clocks (28 clock-years) is summarized, and their capabilities are discussed. Developments that permit better monitoring of clock parameters are described. Possible evolutionary changes to Cs beam clock design are presented and the absence of dramatic improvements to accuracy is discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1985
- Accession Number
- ADA494670
Entities
People
- J.-s. Boulanger
- R. J. Douglas
Organizations
- National Research Council Canada