Measurement of IBD-like background with plastic scintillator detector array at surface level
A prototype detector array for reactor electron antineutrinos is constructed using a 4 × 4 (160 kg) plastic scintillator detector array and operated for 277 h of background data collection. The first analysis of the IBD-like background at the surface is presented with the event rate of 397.4 ± 20.3 day −1 , with the correlated IBD-like background event rate being 137.42 ± 10.05 day −1 . The majority of IBD-like background events at the surface originate from cosmic neutrons. The contributions of muon-induced radioisotopes, such as 9 Li and 8 He, and muon-induced neutrons, are insignificantly small compared to cosmic neutrons.
Authors
- Guangyu He (ORCID: https://orcid.org/0000-0001-5100-0324)
- H. L. Tian (ORCID: https://orcid.org/0000-0003-0585-8279)
- C. S. Gao (ORCID: https://orcid.org/0000-0001-5049-3120)
- J. Zhao (ORCID: https://orcid.org/0000-0001-6408-2314)
- Yan Liu (ORCID: https://orcid.org/0000-0003-4242-4840)
- Chao Wang (ORCID: https://orcid.org/0000-0001-6964-9711)
- Xiuzhang Tang
Institutions
- China National Nuclear Corporation (CN)
- China Atomic Energy Authority (CN)
- China Aerospace Science and Technology Corporation (CN)
- China Institute of Atomic Energy (CN)
Publication Details
- Journal
- Nuclear Engineering and Technology
- Published
- 2025-05-30
- DOI
- https://doi.org/10.1016/j.net.2025.103707
- Primary Topic
- Dark Matter and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- China Institute of Atomic Energy