JOURNAL ARTICLE
NIM4 cesium fountain primary frequency standard: performance and evaluation
Abstract
The NIM4 atomic fountain clock has been operating since August 2003. We in this paper report the experiments certifying its stability of 8E-13//spl tau//sup 1/2/, reproducibility of 5E-15, and present results of the first evaluation for its systematic frequency correction with an uncertainty of 8.5 E-15 during September to December 2003.
Keywords:
Fountain Frequency standard Atomic clock Reproducibility Caesium Stability (learning theory) Systematic error Computer science Electrical engineering Physics Engineering Optics Statistics Nuclear physics Mathematics History
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Citation History
Topics
Advanced Frequency and Time Standards
Physical Sciences → Physics and Astronomy → Atomic and Molecular Physics, and Optics
Scientific Measurement and Uncertainty Evaluation
Social Sciences → Decision Sciences → Statistics, Probability and Uncertainty
Atomic and Subatomic Physics Research
Physical Sciences → Physics and Astronomy → Atomic and Molecular Physics, and Optics
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