The detector system of the Daya Bay reactor neutrino experiment

作者：An F P; Bai J Z; Balantekin A B; Band H R^*; Beavis D; Beriguete W; Bishai M; Blyth S; Brown R L; Butorov I; Cao D; Cao G F; Cao J; Carr R; Cen W R; Chan W T; Chan Y L; Chang J F; Chang L C; Chang Y; Chasman C; Chen H Y; Chen H S; Chen M J; Chen Q Y; Chen S J; Chen S M; Chen X C; Chen X H; Chen X S; Chen Y X; Chen Y; Cheng J H; Cheng J; Cheng Y P; Cherwinka J J; Chidzik S; Chow K; Chu M C

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2016, 811: 133-161.

DOI：10.1016/j.nima.2015.11.144

• Neutrino oscillation
• Neutrino mixing
• Reactor
• Daya Bay

The Daya Bay experiment was the first to report simultaneous measurements of reactor antineutrinos at multiple baselines leading to the discovery of (nu) over bar (e) oscillations over km-baselines. Subsequent data has provided the world's most precise measurement of sin 2 2013 and the effective mass splitting Delta m(ee)(2). The experiment is located in Daya Bay, China where the cluster of six nuclear reactors is among the world's most prolific sources of electron antineutrinos. Multiple antineutrino detectors are deployed in three underground water pools at different distances from the reactor cores to search for deviations in the antineutrino rate and energy spectrum due to neutrino mixing. Instrumented with photomultiplier tubes, the water pools serve as shielding against natural radioactivity from the surrounding rock and provide efficient muon tagging. Arrays of resistive plate chambers over the top of each pool provide additional muon detection. The antineutrino detectors were specifically designed for measurements of the antineutrino flux with minimal systematic uncertainty. Relative detector efficiencies between the near and far detectors are known to better than 0.2%. With the unblinding of the final two detectors' baselines and target masses, a complete description and comparison of the eight antineutrino detectors can now be presented. This paper describes the Daya Bay detector systems, consisting of eight antineutrino detectors in three instrumented water pools in three underground halls, and their operation through the first year of eight detector data-taking.

• 单位
  shenzhen univ; new; 香港大学; 成都理工大学; 南开大学; 华北电力大学（保定）; 山东大学; 中山大学; 上海交通大学; 中国人民解放军国防科学技术大学; 西安交通大学; 重庆大学; 东莞理工学院; 东华大学; 南京大学; 北京师范大学; 清华大学; 香港中文大学; 中国原子能科学研究院