https://doi.org/10.1140/epjp/s13360-023-04263-z
Regular Article
Developing a single-phase liquid argon detector with SiPM readout
1
Experimental Physics Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
2
School of Physics, University of Chinese Academy of Sciences, Beijing, China
3
School of Electronic, Electrical Engineering and Physics, Fujian University of Technology, Fuzhou, China
4
State Key Laboratory of High Power Semiconductor Laser, College of Physics, Changchun University of Science and Technology, Changchun, Jilin, China
5
State Key Laboratory of Particle Detection and Electronics, Beijing, China
6
School of Physics, Sichuan University, Chengdu, China
7
Astro-particle Physics Division, Institute of High Energy Physics, Chinese Academy of Science, Beijing, China
d
guocong@ihep.ac.cn
f
liangxh@ihep.ac.cn
Received:
10
January
2023
Accepted:
7
July
2023
Published online:
19
July
2023
Liquid argon is used as a target material in several current and planned experiments related to dark matter direct searching and neutrino detection. SiPM is becoming the standard for scintillator detectors because of its advantages over traditional PMT. In this paper, we developed a single-phase liquid argon detector with SiPM readout and evaluated its light yield with an 
Am 
source. After eliminating the effect of SiPM cross-talks and after-pulses, we achieve the light yield of 12.5 ± 3.4 photoelectrons per keVee primarily generated by the argon scintillation, which is one of the best results for a liquid argon detector. In addition, we provide an experimental method to estimate the effect of cross-talks and after-pulses on light yield using dark noise data. Finally, we quantitatively give the relationship between the light yield and the decay time of the slow component of a liquid argon detector.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
