Development of NPL Rb fountain frequency standard
arXiv:1206.1158
Abstract
The first characterization of the distributed cavity phase frequency shift of the NPL Rb fountain frequency standard is reported. It is shown how the symmetric part of the distributed cavity phase shift can be used to set up the vertical angle of the fountain. The estimated uncertainty of the distributed cavity phase frequency shift of 1.25\times10^-16 reduces the total type B uncertainty of the Rb fountain down to 2.4\times10^-16.
5 pages, 7 figures, 2 tables
References in corpus (4)
- Progress in Atomic Fountains at LNE-SYRTE
- Improved accuracy of the NPL-CsF2 primary frequency standard: evaluation of distributed cavity phase and microwave lensing frequency shifts
- Evaluation of Doppler Shifts to Improve the Accuracy of Primary Atomic Fountain Clocks
- Evaluating and Minimizing Distributed Cavity Phase Errors in Atomic Clocks