Author/Authors :
Yu، نويسنده , , Zeyuan and Lu، نويسنده , , Haoqi and Yang، نويسنده , , Changgen and Wang، نويسنده , , Lingyu and Guan، نويسنده , , Mengyun and Liu، نويسنده , , Jinchang and Wang، نويسنده , , Ruiguang and Wang، نويسنده , , Zhimin and Xu، نويسنده , , Jilei and Cao، نويسنده , , Jun and Wang، نويسنده , , Yifang، نويسنده ,
Abstract :
The Daya Bay reactor neutrino experiment is designed to precisely measure the neutrino mixing angle θ 13 . The anti-neutrino detectors are shielded by highly purified water against radioactivity and spallation neutrons from surrounding rocks. The water also serves as a Cherenkov detector to tag cosmic-ray muons, which induce main backgrounds. In order to study water purification and details of the detector response, a prototype water Cherenkov detector is constructed at the Institute of High Energy Physics (IHEP), Beijing. The detector is divided by Tyvek into two sections and viewed by two 8 in. photomultipliers. Cosmic-ray muons are used for detector response studies and a Monte Carlo simulation based on the Geant4 package shows good agreement with the experimental data.
Keywords :
Reactor , Water cherenkov , Neutrino , Daya Bay
