Recent Progress in Cs Beam Frequency Standards at the NRLM

Autor:	Yasuki Koga, Yasuhiro Nakadan
Rok vydání:	1985
Předmět:	Physics Nuclear magnetic resonance Optics International Atomic Time business.industry Electromagnetic shielding Electrical and Electronic Engineering Frequency standard business Instrumentation Beam (structure)
Zdroj:	IEEE Transactions on Instrumentation and Measurement. :133-135
ISSN:	1557-9662 0018-9456
DOI:	10.1109/tim.1985.4315286
Popis:	Some causes and cures of frequency uncertainty in the cesium beam frequency standard, NRLM-II, are described. Accuracy reevaluation indicates about 2.2 × 10-13, and the standard frequency is about 8 × 10-14 below that of the International Atomic Time (TAI) scale. The frequency stability is estimated as better than 8 × 10-12 ?-1/2 for short-term and 4 × 10-14 for 1-2 day averages.
Databáze:	OpenAIRE
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