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journal article·2022-03-01Open access

Deceleration of highly charged Ni ions with compressed longitudinal kinetic energy distribution by a falling potential

Zhiqiang Zhou, Shiyong Liang, Shaolong Chen, Pengpeng Zhou, Wei Sun, Jun Xiao, Yao Huang, Hua Guan, Kelin Gao

AIP Advances· Volume 12· Issue 3
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Source abstract

Abstract

Higher-precision optical clocks based on highly charged ions (HCIs) have become one of the means to explore new physics beyond the standard model. Usually, HCIs are produced by electron bombardment with high kinetic energy. Therefore, to realize an optical clock, the deceleration of HCIs is necessary. In this study, the design and operation of a deceleration beamline to produce low-energy HCIs are presented. We used time-of-flight technology to select pure 58Ni12+ ions. The longitudinal kinetic energy distribution of the ion beam was compressed from 11.4(4)qV (q is the electric charge of ions) to 2.2(3)qV by employing a rapidly decreasing voltage. Adopting a deceleration lens system, the longitudinal kinetic energy of the 58Ni12+ ions was reduced from 678.2(3)qV to 2.0(3)qV.
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Research context

OpenAlex topics: Advanced Frequency and Time Standards · Cold Atom Physics and Bose-Einstein Condensates · Atomic and Molecular Physics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences 1 , Wuhan 430071, China

University of Chinese Academy of Sciences 2 , Beijing 100049, China

Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University 3 , Shanghai 200433, China

Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Fudan University 4 , Shanghai 200433, China

Funding

National Natural Science Foundation of China · Strategic Priority Research Program of the Chinese Academy of Sciences · Youth Innovation Promotion Association · K. C. Wong Education Foundation

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