Customized calibration sources in the JUNO experiment

被引：0

作者：

Takenaka, A. ^{[1
]}

Hui, J. ^{[1
]}

Li, R. ^{[2
]}

Hao, S. ^{[2
]}

Huang, J. ^{[2
]}

Lai, H. ^{[2
]}

Li, Y. ^{[2
]}

Liu, J. ^{[1
,2
]}

Meng, Y. ^{[2
]}

Qian, Z. ^{[2
]}

Wang, H. ^{[2
]}

Xiang, Z. ^{[2
]}

Yuan, Z. ^{[3
]}

Yun, Y. ^{[2
]}

Zhang, F. ^{[2
]}

Zhang, T. ^{[1
]}

Zhang, Y. ^{[1
]}

机构：

[1] Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China

[2] School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China

[3] Institute of Modern Physics, Fudan University, Shanghai, China

来源：

Journal of Instrumentation | 2024年 / 19卷 / 12期

关键词：

Actinium - Cadmium alloys - Germanium compounds - Hadrons - Mercury amalgams - Neutron detectors - Neutrons - Photons - Scintillation counters;

D O I：

10.1088/1748-0221/19/12/P12019

中图分类号：

学科分类号：

摘要：

We customized a laser calibration system and four radioactive γ-ray calibration sources for the Jiangmen Underground Neutrino Observatory (JUNO), a 20-kton liquid scintillator-based neutrino detector. The laser source system was updated to realize the isotropic light emission timing within ±0.25 nsec level and to allow the tuning of the laser intensity covering more than four orders of magnitude. In addition, methods to prepare four different radioactive sources (18F, 40K, 226Ra, and 241Am), covering energies from 0 (10) keV to 0 (1) MeV, for the JUNO detector were established in this study. The radioactivity of each source and the risk of radioactive substance leaking into the detector from the source were confirmed to meet the experimental requirements. © 2024 IOP Publishing Ltd and Sissa Medialab. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

引用

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