학술논문
A high precision calibration of the nonlinear energy response at Daya Bay
Document Type
article
Author
Adey, D; An, FP; Balantekin, AB; Band, HR; Bishai, M; Blyth, S; Cao, D; Cao, GF; Cao, J; Chang, JF; Chang, Y; Chen, HS; Chen, SM; Chen, Y; Chen, YX; Cheng, J; Cheng, ZK; Cherwinka, JJ; Chu, MC; Chukanov, A; Cummings, JP; Dash, N; Deng, FS; Ding, YY; Diwan, MV; Dohnal, T; Dove, J; Dvořák, M; Dwyer, DA; Gonchar, M; Gong, GH; Gong, H; Gu, WQ; Guo, JY; Guo, L; Guo, XH; Guo, YH; Guo, Z; Hackenburg, RW; Hans, S; He, M; Heeger, KM; Heng, YK; Higuera, A; Hor, YK; Hsiung, YB; Hu, BZ; Hu, JR; Hu, T; Hu, ZJ; Huang, HX; Huang, XT; Huang, YB; Huber, P; Jaffe, DE; Jen, KL; Jetter, S; Ji, XL; Ji, XP; Johnson, RA; Jones, D; Kang, L; Kettell, SH; Koerner, LW; Kohn, S; Kramer, M; Langford, TJ; Lebanowski, L; Lee, J; Lee, JHC; Lei, RT; Leitner, R; Leung, JKC; Li, C; Li, F; Li, HL; Li, QJ; Li, S; Li, SC; Li, SJ; Li, WD; Li, XN; Li, XQ; Li, YF; Li, ZB; Liang, H; Lin, CJ; Lin, GL; Lin, S; Lin, SK; Ling, JJ; Link, JM; Littenberg, L; Littlejohn, BR; Liu, JC; Liu, JL; Liu, Y; Liu, YH; Lu, C; Lu, HQ
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Abstract
A high precision calibration of the nonlinearity in the energy response of the Daya Bay Reactor Neutrino Experiment's antineutrino detectors is presented in detail. The energy nonlinearity originates from the particle-dependent light yield of the scintillator and charge-dependent electronics response. The nonlinearity model is constrained by γ calibration points from deployed and naturally occurring radioactive sources, the β spectrum from 12B decays, and a direct measurement of the electronics nonlinearity with a new flash analog-to-digital converter readout system. Less than 0.5% uncertainty in the energy nonlinearity calibration is achieved for positrons of kinetic energies greater than 1 MeV.