一种用于主频标准NIST-F1的新型微波合成链

Proceedings of the 2005 IEEE International Frequency Control Symposium and Exposition, 2005. Pub Date : 2005-08-29 DOI:10.1109/FREQ.2005.1573950

T. Heavner, S. Jefferts, E. Donley, T. Parker, F. Levi

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引用次数: 13

摘要

我们介绍了目前在NIST- f1中使用的微波合成链的设计和测量，NIST- f1是在Boulder, CO.运行的激光冷却铯喷泉主频率标准。该链已用于NIST- f1的两次精度评估(2005年1月和2005年7月)，每次评估的组合(a型和B型)分数频率不确定度为~ 0.5 × 10-15。此外，该合成链用于最近针对Cs的199Hg+光学时钟跃迁的校准，其分数不确定度为9.1乘以10-16

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A new microwave synthesis chain for the primary frequency standard NIST-F1

We present the design and measurements of the microwave synthesis chain presently used in NIST-F1, the laser-cooled cesium fountain primary frequency standard in operation at NIST, Boulder, CO. The chain has been used in two accuracy evaluations of NIST-F1 (January 2005 and July 2005), each of which had a combined (type A and type B) fractional frequency uncertainty of ~ 0.5 times 10-15. Additionally, this synthesis chain was in use during a recent calibration of the 199Hg+ optical clock transition against Cs, which had a fractional uncertainty of 9.1 times 10-16

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Proceedings of the 2005 IEEE International Frequency Control Symposium and Exposition, 2005.

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