Magnetic State Selection in Atomic Frequency and Time Standards

H.E. Peters

Abstract:	Atomic standards such as those based upon cesium and hydrogen rely upon magnetic state selection to obtain population inversion in the hyperfine transition levels. Use of new design approaches and improved magnetic materials has made it possible to fabricate improved state selectors of small size, and thus the efficiency of utilization of bean flux is greatly improved and the size and weight of the standard is reduced. The sensitivity to magnetic perturbations is also decreased, so that the accuracy and stability of the standard in improved. Several new state selector designs are illustrated and the application to standards utilizing different atomic species is analyzed.
Published in:	Proceedings of the 13th Annual Precise Time and Time Interval Systems and Applications Meeting December 1 - 3, 1981 Naval Research Laboratory Washington, DC
Pages:	645 - 665
Cite this article:	Peters, H.E., "Magnetic State Selection in Atomic Frequency and Time Standards," Proceedings of the 13th Annual Precise Time and Time Interval Systems and Applications Meeting, Washington, DC, December 1981, pp. 645-665.
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