LHAASO实验水切伦科夫探测器阵列中2286根3英寸光电倍增管的校准与表征

IF 1.5 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2026-06-01 Epub Date: 2026-02-04 DOI:10.1016/j.nima.2026.171361

Kun Jiang , Zehua Cao , Cheng Li , Xin Li , Xiurong Li , Yang Li , Ziwei Li , Ziyang Li , Zheng Liang , Pengzhong Lu , Kaifeng Shen , Kaiyang Wang , Yan Wang , Xin Wu , Zongkang Zeng , Cheng Liu , Zebo Tang

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引用次数: 0

摘要

LHAASO实验的水切伦科夫探测器阵列（WCDA）旨在探测能量从100 GeV到30 TeV的伽马射线源。WCDA中安装了海南展创光电科技有限公司（HZC）生产的2220根3英寸光电倍增管（pmt） XP72B22，用于检测水中空气淋浴粒子产生的切伦科夫光子。pmt必须具有良好的单光电子分辨率和高达3000个光电子的动态范围。在安装之前，所有pmt都在实验室进行了测试，以确定其基本特性，作为WCDA实验的输入，以验证其符合要求的规格，并向制造商提供反馈。本文介绍了PMT XP72B22的高动态范围基座设计、PMT批量测试系统以及2286台PMT的测试结果。15个pmt（0.66%）不符合要求的规格而被拒绝。测试结果与HZC和高能物理研究所的测量数据进行了比较。达到了良好的一致性。

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Calibration and characterisation of 2286 3-inch photomultiplier tubes for the water Cherenkov detector array of the LHAASO experiment

The water Cherenkov detector array (WCDA) of the LHAASO experiment aims to survey gamma-ray sources with energies from 100 GeV to 30 TeV. 2220 3-inch photomultiplier tubes (PMTs) XP72B22 from Hainan Zhanchuang Photonics Technology Co., Ltd (HZC) are installed in the WCDA, detecting the Cherenkov photons generated by air shower particles in the water. The PMTs must have good single photoelectron resolution and a dynamic range of up to 3000 photoelectrons. Before installation, all PMTs were tested in the laboratory to determine their basic characteristics, which served as input to the WCDA experiment, to verify their compliance with the required specifications, and to provide feedback to the manufacturer. This paper presents the high-dynamic-range base design for the PMT XP72B22, the PMT batch test system, and test results for 2286 PMTs. 15 PMTs (0.66%) did not meet the required specifications and were rejected. The test results are compared with data measured by the HZC and by the Institute of High Energy Physics. Good consistency is achieved.

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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.