Laboratoire National de Métrologie-Système de Référence Temps Espace, Observatoire de Paris, France.
IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Mar;57(3):647-53. doi: 10.1109/TUFFC.2010.1461.
We report the operation of a dual Rb/Cs atomic fountain clock. (133)Cs and (87)Rb atoms are cooled, launched, and detected simultaneously in LNE-SYRTE's FO2 double fountain. The dual clock operation occurs with no degradation of either the stability or the accuracy. We describe the key features for achieving such a simultaneous operation. We also report on the results of the first Rb/Cs frequency measurement campaign performed with FO2 in this dual atom clock configuration, including a new determination of the absolute (87)Rb hyperfine frequency.
我们报告了一种双铷/铯原子喷泉钟的运行情况。（133）Cs 和（87）Rb 原子在 LNE-SYRTE 的 FO2 双喷泉中同时冷却、发射和检测。这种双时钟操作不会降低稳定性或准确性。我们描述了实现这种同步操作的关键特性。我们还报告了在这种双原子钟配置下使用 FO2 进行的首次 Rb/Cs 频率测量活动的结果，包括对（87）Rb 超精细频率的新测定。
