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

doi:10.1063/5.0082708

NTSC-IR > 量子频标研究室

	Development and tuning of the microwave resonant cavity of a cryogenic cesium atomic fountain clock
	Yang, Fan 1,2,3; Wang, Xinliang1,3 ; Fan, Sichen 1,2,3; Bai, Yang 1,2,3; Shi, Junru 1,2,3; Liu, Dandan 1,3; Zhang, Hui 1,2,3; Guan, Yong 1,3; Hao, Qiang 1,3; Ruan, Jun 1,3; Zhang, Shougang 1,3
	2022-04-01
发表期刊	REVIEW OF SCIENTIFIC INSTRUMENTS
ISSN	0034-6748
卷号	93 期号:4 页码:8
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
资助者	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
DOI	10.1063/5.0082708
关键词[WOS]	ACCURACY EVALUATION ; FREQUENCY ; PROGRESS
语种	英语
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]
资助者	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
WOS研究方向	Instruments & Instrumentation ; Physics
WOS类目	Instruments & Instrumentation ; Physics, Applied
WOS记录号	WOS:000793146700001
出版者	AIP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/13815
专题	量子频标研究室
通讯作者	Wang, Xinliang
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Time & Frequency Primary Stand, 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.