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

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

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 respons...

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Veröffentlicht in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2019-10, Vol.940 (C), p.230-242
Hauptverfasser: Adey, D., An, F.P., Balantekin, A.B., Chang, Y., Chen, H.S., Chen, Y.X., Cheng, J., Chu, M.C., Chukanov, A., Cummings, J.P., Dash, N., Deng, F.S., Dove, J., Gong, G.H., Gong, H., Guo, J.Y., Guo, L., Guo, X.H., Guo, Y.H., Hackenburg, R.W., Hor, Y.K., Hsiung, Y.B., Huang, H.X., Huber, P., Jaffe, D.E., Jen, K.L., Ji, X.L., Ji, X.P., Kettell, S.H., Koerner, L.W., Kramer, M., Langford, T.J., Lee, J.H.C., Leung, J.K.C., Li, C., Li, F., Li, H.L., Li, Q.J., Li, S., Li, S.C., Li, S.J., Li, X.N., Li, X.Q., Lin, C.J., Lin, S.K., Link, J.M., Littenberg, L., Littlejohn, B.R., Liu, J.C., Ma, Y.Q., Marshall, C., McKeown, R.D., Mitchell, I., Lepin, L. Mora, Napolitano, J., Naumova, E., Ochoa-Ricoux, J.P., Olshevskiy, A., Pan, H.-R., Park, J., Pec, V., Peng, J.C., Pinsky, L., Pun, C.S.J., Qi, F.Z., Qian, X., Raper, N., Ren, J., Rosero, R., Roskovec, B., Ruan, X.C., Sun, J.L., Treskov, K., Tse, W.-H., Tull, C.E., Wang, N.Y., Wang, R.G., Wang, W., Wang, X., Wang, Y., Wang, Y.F., Wei, H.Y., Wei, L.H., Wen, L.J., Wong, S.C.F., Xing, Z.Z., Xu, J.L., Xue, T., Yang, L., Yang, Y.Z., Ye, M., Young, B.L., Yu, H.Z., Zeng, Y., Zhang, C., Zhang, H.H., Zhang, Q.M., Zhang, R., Zhang, Z.P., Zhuang, H.L.
Format: Artikel
Sprache:eng
Schlagworte:
Daya Bay
Energy calibration
Liquid scintillator
Neutrino
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Beschreibung
Zusammenfassung: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.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2019.06.031