Abstract
A CÆIUM atomic resonator1 has been in operation as the standard of frequency at the National Physical Laboratory for eight months and its performance under a variety of conditions has been investigated. It has been found that the electrical and mechanical conditions required for an accuracy of repetition of ± 5 parts in 1010 are easily attained, and it is expected that the model now being designed for routine operation will give an accuracy approaching ± 1 part in 1010.
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References
Essen, L., and Parry, J. V. L., Nature, 176, 280 (1955).
Smith, H. M., Mon. Not. Roy. Astro. Soc., 113, 67 (1953).
Proc. of Symposium at the N.P.L. Discussion, 99 (H.M.S.O., 1952).
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ESSEN, L., PARRY, J. Atomic and Astronomical Time. Nature 177, 744–745 (1956). https://doi.org/10.1038/177744a0
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DOI: https://doi.org/10.1038/177744a0
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