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Development and tuning of the microwave resonant cavity of a cryogenic cesium atomic fountain clock

文献类型：期刊论文

作者Yang, Fan1,2,3; Wang, Xinliang1,3; Fan, Sichen1,2,3; Bai, Yang1,2,3; Shi, Junru1,2,3; Liu, Dandan1,3; Zhang, Hui1,2,3; Guan, Yong1,3; Hao, Qiang1,3; Ruan, Jun1,3
刊名REVIEW OF SCIENTIFIC INSTRUMENTS
出版日期2022-04-01
卷号93期号:4页码:8
ISSN号0034-6748
DOI10.1063/5.0082708
英文摘要A cryogenic cesium atomic fountain clock is a novel clock with the microwave cavity and atomic free flight region placed in liquid nitrogen. On the one hand, the blackbody radiation shift is reduced at cryogenic temperature. On the other hand, the vacuum in the atomic free flight region is optimized, and the background gas collision shift reduced. The microwave resonant cavity is the most important unit in a cryogenic cesium atomic fountain clock. Through theoretical and simulative investigation, this study designs the configuration and dimensions for an optimized microwave cavity. Concurrently, experiments reveal the effects of temperature, pressure, humidity, and other factors on the resonant frequency of the microwave cavity. Combining the theoretical and experimental study, we obtain the resonant frequency difference between the microwave cavity in a cryogenic vacuum and at room temperature and ambient pressure. By subtracting this frequency difference, we adjust the microwave cavity for room temperature and ambient pressure, then vacuumize and immerse it in liquid nitrogen for verification and fine tuning. Finally, we determine that the microwave cavity resonant frequency deviation from the clock transition frequency is 10 kHz with an unloaded quality factor of 25 000, which meets the application requirements of the cryogenic cesium atomic fountain clock.& nbsp;Published under an exclusive license by AIP Publishing
WOS关键词ACCURACY EVALUATION ; FREQUENCY ; PROGRESS
资助项目Chinese Academy of Sciences for Western Young Scholars[XAB2018A06] ; Chinese Academy of Sciences for Western Young Scholars[XAB2018B16] ; Chinese Academy of Sciences for Western Young Scholars[XAB2019A07] ; Research and Development Project of Scientific Research Instruments and Equipment of Chinese Academy of Sciences[YJKYYQ20200020] ; National Natural Science Foundation of China[12173044]
WOS研究方向Instruments & Instrumentation ; Physics
语种英语
出版者AIP Publishing
WOS记录号WOS:000793146700001
资助机构Chinese Academy of Sciences for Western Young Scholars ; Chinese Academy of Sciences for Western Young Scholars ; Research and Development Project of Scientific Research Instruments and Equipment of Chinese Academy of Sciences ; Research and Development Project of Scientific Research Instruments and Equipment of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences for Western Young Scholars ; Chinese Academy of Sciences for Western Young Scholars ; Research and Development Project of Scientific Research Instruments and Equipment of Chinese Academy of Sciences ; Research and Development Project of Scientific Research Instruments and Equipment of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences for Western Young Scholars ; Chinese Academy of Sciences for Western Young Scholars ; Research and Development Project of Scientific Research Instruments and Equipment of Chinese Academy of Sciences ; Research and Development Project of Scientific Research Instruments and Equipment of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences for Western Young Scholars ; Chinese Academy of Sciences for Western Young Scholars ; Research and Development Project of Scientific Research Instruments and Equipment of Chinese Academy of Sciences ; Research and Development Project of Scientific Research Instruments and Equipment of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://210.72.145.45/handle/361003/13815]  
专题国家授时中心_量子频标研究室
通讯作者Wang, Xinliang
作者单位1.Chinese Acad Sci, Key Lab Time & Frequency Primary Stand, Xian 710600, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Fan,Wang, Xinliang,Fan, Sichen,et al. Development and tuning of the microwave resonant cavity of a cryogenic cesium atomic fountain clock[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2022,93(4):8.
APA Yang, Fan.,Wang, Xinliang.,Fan, Sichen.,Bai, Yang.,Shi, Junru.,...&Zhang, Shougang.(2022).Development and tuning of the microwave resonant cavity of a cryogenic cesium atomic fountain clock.REVIEW OF SCIENTIFIC INSTRUMENTS,93(4),8.
MLA Yang, Fan,et al."Development and tuning of the microwave resonant cavity of a cryogenic cesium atomic fountain clock".REVIEW OF SCIENTIFIC INSTRUMENTS 93.4(2022):8.

入库方式： OAI收割

来源：国家授时中心

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