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Performance test of the electromagnetic particle detectors for the LHAASO experiment
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Contribution Rank第25完成单位
Indexed BySCI ; EI
KeywordElectromagnetic particle detectors KM2A LHAASO CORARS Cosmic ray

The Large High Altitude Air Shower Observatory (LHAASO) is a new generation hybrid cosmic ray observatory which is expected to reveal the mystery of the origin of cosmic rays. The one square kilometer array (KM2A) consisting of 5195 Electromagnetic particle Detectors (ED) and 1188 Muon Detectors (MD) is a sub-array of LHAASO. The EDs are designed to measure the density and arriving time of the secondary particles of extensive air showers. The performance of the EDs is tested for the quality control after construction in the laboratory at sea level. In this paper, the performance of more than four thousands EDs is summarized. The performance of all tested EDs meets the design requirements with the time resolution of 1.6 ns, the detection efficiency of 97.8%, charge resolution for single particle of 18.5% and count rate around 480 Hz. Furthermore, one ED is singled out for monitoring of the long-term stability over a period of nearly two years from December 2018 to November 2020.

Funding ProjectNational Key R&D program of China[2018YFA0404201] ; National Key R&D program of China[2018YFA0404202] ; National Key R&D program of China[2018YFA0404203] ; National Key R&D program of China[2018YFA0404204] ; Postdoctoral Science Foundation of China[2019M652357] ; NSFC[12022502] ; NSFC[11905227] ; NSFC[U1931112] ; NSFC[11635011] ; NSFC[11761141001] ; Thailand by Science Research and Innovation[RTA6280002]
Funding OrganizationNational Key R&D program of China[2018YFA0404201, 2018YFA0404202, 2018YFA0404203, 2018YFA0404204] ; Postdoctoral Science Foundation of China[2019M652357, 12022502, 11905227, U1931112, 11635011, 11761141001] ; Thailand by Science Research and Innovation[RTA6280002]
Subject Area天文学 ; 天体物理学 ; 高能天体物理学
MOST Discipline Catalogue理学 ; 理学::天文学
WOS IDWOS:000641308300008
WOS Research AreaInstruments & Instrumentation ; Nuclear Science & Technology ; Physics
WOS SubjectInstruments & Instrumentation ; Nuclear Science & Technology ; Physics, Nuclear ; Physics, Particles & Fields
EI Accession Number20211710255282
EI KeywordsCosmic rays
EI Classification Number471.1 Oceanography, General - 657 Space Physics - 657.2 Extraterrestrial Physics and Stellar Phenomena - 944.7 Radiation Measuring Instruments
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorGao, W.; Li, B.; Li, W. L.; Zhao, X.
Affiliation1.Key Laboratory of Particle Astrophyics & Experimental Physics Division & Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, 100049 Beijing, China
2.University of Chinese Academy of Sciences, 100049 Beijing, China
3.TIANFU Cosmic Ray Research Center, Chengdu, Sichuan, China
4.State Key Laboratory of Particle Detection and Electronics, China
5.University of Science and Technology of China, 230026 Hefei, Anhui, China
6.Department of Engineering Physics, Tsinghua University, 100084 Beijing, China
7.National Astronomical Observatories, Chinese Academy of Sciences, 100101 Beijing, China
8.National Space Science Center, Chinese Academy of Sciences, 100190 Beijing, China
9.School of Physics, Peking University, 100871 Beijing, China
10.Center for Astrophysics, Guangzhou University, 510006 Guangzhou, Guangdong, China
11.School of Physics and Astronomy & School of Physics (Guangzhou) & Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, 519082 Zhuhai, Guangdong, China
12.School of Physical Science and Technology, Guangxi University, 530004 Nanning, Guangxi, China
13.Hebei Normal University, 050024 Shijiazhuang, Hebei, China
14.School of Physics and Microelectronics, Zhengzhou University, 450001 Zhengzhou, Henan, China
15.School of Astronomy and Space Science, Nanjing University, 210023 Nanjing, Jiangsu, China
16.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, 210023 Nanjing, Jiangsu, China
17.Institute of Frontier and Interdisciplinary Science & Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, 266237 Qingdao, Shandong, China
18.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 200030 Shanghai, China
19.Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University, 200240 Shanghai, China
20.School of Physical Science and Technology & School of Information Science and Technology, Southwest Jiaotong University, 610031 Chengdu, Sichuan, China
21.College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China
22.Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, 850000 Lhasa, Tibet, China
23.School of Physics and Technology, Wuhan University, 430072 Wuhan, Hubei, China
24.School of Physics and Astronomy, Yunnan University, 650091 Kunming, Yunnan, China
25.Yunnan Observatories, Chinese Academy of Sciences, 650216 Kunming, Yunnan, China
26.Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, 2 Dublin, Ireland
27.Max-Planck-Institut for Nuclear Physics, P.O. Box 103980, 69029 Heidelberg, Germany
28.Dipartimento di Fisica dell’Università di Napoli “Federico II”, Complesso Universitario di Monte Sant’Angelo, via Cinthia, 80126 Napoli, Italy
29.Institute for Nuclear Research of Russian Academy of Sciences, 117312 Moscow, Russia
30.Moscow Institute of Physics and Technology, 141700 Moscow, Russia
31.Département de Physique Nucléaire et Corpusculaire, Faculté de Sciences, Université de Genève, 24 Quai Ernest Ansermet, 1211 Geneva, Switzerland
32.Department of Physics, Faculty of Science, Mahidol University, 10400 Bangkok, Thailand
33.Yantai University, 264005 Yantai, Shandong, China
Recommended Citation
GB/T 7714
Aharonian, F.,An, Q.,An, Q.,et al. Performance test of the electromagnetic particle detectors for the LHAASO experiment[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2021,1001:7.
APA Aharonian, F..,An, Q..,An, Q..,Bai, L. X..,Bai, Y. X..,...&Zuo, X..(2021).Performance test of the electromagnetic particle detectors for the LHAASO experiment.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,1001,7.
MLA Aharonian, F.,et al."Performance test of the electromagnetic particle detectors for the LHAASO experiment".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 1001(2021):7.
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