Experimental Evaluation of the Blackbody Radiation Shift in the Cesium Atomic Fountain Clock

doi:10.3390/app12010510

NTSC-IR > 量子频标研究室

	Experimental Evaluation of the Blackbody Radiation Shift in the Cesium Atomic Fountain Clock
	Yang, Fan 1,2,3; Wang, Xinliang1,3 ; Ruan, Jun1,3 ; Shi, Junru 1,2,3; Fan, Sichen 1,2,3; Bai, Yang 1,2,3; Guan, Yong 1,3; Hao, Qiang 1,3; Zhang, Hui 1,2,3; Liu, Dandan 1; Zhang, Shougang 1,3
	2022
发表期刊	APPLIED SCIENCES-BASEL
卷号	12 期号:1 页码:10
摘要	The cesium atomic fountain clock is the world's most accurate microwave atomic clock. The uncertainty of blackbody radiation (BBR) shift accounts for an increasingly large percentage of the uncertainty associated with fountain clocks and has become a key factor in the performance of fountain clocks. The uncertainty of BBR shift can be reduced by improving the system environment temperature. This study examined the mechanism by which the BBR shift of the transition frequency between the two hyperfine energy levels of the Cs-133 ground state is generated and the calculation method for the BBR shift in the atomic fountain. Methods used to reduce the uncertainty of BBR shift were also examined. A fountain system structure with uniform temperature and good heat preservation was designed, and related technologies, such as that for measuring the temperature of the cesium fountain system, were studied. The results of 20 days of measurements, in combination with computer simulation results, showed that the temperature uncertainty of the atomic action zone is 0.12 degrees C and that the resulting uncertainty of BBR shift is 2.4 x 10(-17).
关键词	cesium atomic fountain clock blackbody radiation shift atomic flight zone
资助者	Chinese Academy of Sciences for Western Young Scholars ; Chinese Academy of Sciences for Western Young Scholars ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences ; Large Research Infrastructures Improvement Funds of Chines 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 ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences ; Large Research Infrastructures Improvement Funds of Chines 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 ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences ; Large Research Infrastructures Improvement Funds of Chines 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 ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI	10.3390/app12010510
关键词[WOS]	ACCURACY EVALUATION ; FREQUENCY ; HYDROGEN
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] ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences[DSS-WXGZ-2020-0005] ; 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 ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences ; Large Research Infrastructures Improvement Funds of Chines 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 ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences ; Large Research Infrastructures Improvement Funds of Chines 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 ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences ; Large Research Infrastructures Improvement Funds of Chines 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 ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences ; Large Research Infrastructures Improvement Funds of Chines Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000752216500001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/13921
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, 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, Peoples R China
推荐引用方式 GB/T 7714	Yang, Fan,Wang, Xinliang,Ruan, Jun,et al. Experimental Evaluation of the Blackbody Radiation Shift in the Cesium Atomic Fountain Clock[J]. APPLIED SCIENCES-BASEL,2022,12(1):10.
APA	Yang, Fan.,Wang, Xinliang.,Ruan, Jun.,Shi, Junru.,Fan, Sichen.,...&Zhang, Shougang.(2022).Experimental Evaluation of the Blackbody Radiation Shift in the Cesium Atomic Fountain Clock.APPLIED SCIENCES-BASEL,12(1),10.
MLA	Yang, Fan,et al."Experimental Evaluation of the Blackbody Radiation Shift in the Cesium Atomic Fountain Clock".APPLIED SCIENCES-BASEL 12.1(2022):10.