A high precision calibration of the nonlinear energy response at Daya Bay

• DOI: 10.1016/j.nima.2019.06.031
• Publication Date: 2019-06-18T15:10:38Z
• Authors: D. Adey; F.P. An; A.B. Balantekin; H.R. Band; M. Bishai; S. Blyth; D. Cao; G.F. Cao; J. Cao; J.F. Chang; Y. Chang; H.S. Chen; S.M. Chen; Y. Chen; Y.X. Chen; J. Cheng; Z.K. Cheng; J.J. Cherwinka; M.C. Chu; A. Chukanov; J.P. Cummings; N. Dash; F.S. Deng; Y.Y. Ding; M.V. Diwan; T. Dohnal; J. Dove; M. Dvořák; D.A. Dwyer; M. Gonchar; G.H. Gong; H. Gong; W.Q. Gu; J.Y. Guo; L. Guo; X.H. Guo; Y.H. Guo; Z. Guo; R.W. Hackenburg; S. Hans; M. He; K.M. Heeger; Y.K. Heng; A. Higuera; Y.K. Hor; Y.B. Hsiung; B.Z. Hu; J.R. Hu; T. Hu; Z.J. Hu; H.X. Huang; X.T. Huang; Y.B. Huang; P. Huber; D.E. Jaffe; K.L. Jen; S. Jetter; X.L. Ji; X.P. Ji; R.A. Johnson; D. Jones; L. Kang; S.H. Kettell; L.W. Koerner; S. Kohn; M. Kramer; T.J. Langford; L. Lebanowski; J. Lee; J.H.C. Lee; R.T. Lei; R. Leitner; J.K.C. Leung; C. Li; F. Li; H.L. Li; Q.J. Li; S. Li; S.C. Li; S.J. Li; W.D. Li; X.N. Li; X.Q. Li; Y.F. Li; Z.B. Li; H. Liang; C.J. Lin; G.L. Lin; S. Lin; S.K. Lin; J.J. Ling; J.M. Link; L. Littenberg; B.R. Littlejohn; J.C. Liu; J.L. Liu; Y. Liu; Y.H. Liu; C. Lu; H.Q. Lu; J.S. Lu; K.B. Luk; X.B. Ma; X.Y. Ma; Y.Q. Ma; C. Marshall; D.A. Martinez Cai...; K.T. McDonald; R.D. McKeown; I. Mitchell; L. Mora Lepin; J. Napolitano; D. Naumov; E. Naumova; J.P. Ochoa-Ricoux; A. Olshevskiy; H.-R. Pan; J. Park; S. Patton; V. Pec; J.C. Peng; L. Pinsky; C.S.J. Pun; F.Z. Qi; M. Qi; X. Qian; N. Raper; J. Ren; R. Rosero; B. Roskovec; X.C. Ruan; H. Steiner; J.L. Sun; K. Treskov; W.-H. Tse; C.E. Tull; B. Viren; V. Vorobel; C.H. Wang; J. Wang; M. Wang; N.Y. Wang; R.G. Wang; W. Wang; W. Wang; X. Wang; Y. Wang; Y.F. Wang; Z. Wang; Z. Wang; Z.M. Wang; H.Y. Wei; L.H. Wei; L.J. Wen; K. Whisnant; C.G. White; H.L.H. Wong; S.C.F. Wong; E. Worcester; Q. Wu; W.J. Wu; D.M. Xia; Z.Z. Xing; J.L. Xu; T. Xue; C.G. Yang; L. Yang; M.S. Yang; Y.Z. Yang; M. Ye; M. Yeh; B.L. Young; H.Z. Yu; Z.Y. Yu; B.B. Yue; S. Zeng; Y. Zeng; L. Zhan; C. Zhang; C.C. Zhang; F.Y. Zhang; H.H. Zhang; J.W. Zhang; Q.M. Zhang; R. Zhang; X.F. Zhang; X.T. Zhang; Y.M. Zhang; Y.M. Zhang; Y.X. Zhang; Y.Y. Zhang; Z.J. Zhang; Z.P. Zhang; Z.Y. Zhang; J. Zhao; L. Zhou; H.L. Zhuang; J.H. Zou
• Keywords: Liquid scintillator; Physics - Instrumentation and Detectors; FOS: Physical sciences; 530; Atomic; 01 natural sciences; 7. Clean energy; Particle and Plasma Physics; Affordable and Clean Energy; Neutrino; Daya Bay; 0103 physical sciences; Energy calibration; Nuclear; physics.ins-det; Molecular; Particle and High Energy Physics; Instrumentation and Detectors (physics.ins-det); Nuclear and Plasma Physics; Nuclear & Particles Physics; Synchrotrons and Accelerators; Nuclear and plasma physics; Other Physical Sciences; Physical Sciences; Astronomical and Space Sciences

17 pages, 22 figures, 4 tables. Final version to be published in NIM-A<br/>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 $��$ calibration points from deployed and naturally occurring radioactive sources, the $��$ spectrum from $^{12}$B 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.<br/>