A. Abusleme, J. P. A. M. de Andre, A. Babic, A. Cabrera, T. Enqvist, A. Fabbri, J. P. Gallo, M. Haacke, A. Insolia, D. E. Jaffe, L. Kalousis, B. Lachacinski, Q. M. Ma, J. Napolitano, L. Oberauer, H. R. Pan, L. F. Pineres Rico, F. Z. Qi, A. Sadovsky, J. Tang, S. van Waasen, P. Walker, Y. F. Xi, B. J. Yan, N. Zafar, Ints Mednieks . Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 988(), 164823 pp. 2021.
Bibtex citation:
Bibtex citation:
@article{12089_2021,
author = {A. Abusleme and J. P. A. M. de Andre and A. Babic and A. Cabrera and T. Enqvist and A. Fabbri and J. P. Gallo and M. Haacke and A. Insolia and D. E. Jaffe and L. Kalousis and B. Lachacinski and Q. M. Ma and J. Napolitano and L. Oberauer and H. R. Pan and L. F. Pineres Rico and F. Z. Qi and A. Sadovsky and J. Tang and S. van Waasen and P. Walker and Y. F. Xi and B. J. Yan and N. Zafar and Ints Mednieks },
title = {Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector},
journal = {Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
volume = {988},
pages = {164823},
year = {2021}
}
author = {A. Abusleme and J. P. A. M. de Andre and A. Babic and A. Cabrera and T. Enqvist and A. Fabbri and J. P. Gallo and M. Haacke and A. Insolia and D. E. Jaffe and L. Kalousis and B. Lachacinski and Q. M. Ma and J. Napolitano and L. Oberauer and H. R. Pan and L. F. Pineres Rico and F. Z. Qi and A. Sadovsky and J. Tang and S. van Waasen and P. Walker and Y. F. Xi and B. J. Yan and N. Zafar and Ints Mednieks },
title = {Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector},
journal = {Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
volume = {988},
pages = {164823},
year = {2021}
}
Abstract: To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by replacing the gadolinium-loaded LS in one antineutrino detector. The concentrations of the fluor, PPO, and the wavelength shifter, bis-MSB, were increased in 12 steps from 0.5 g/L and <0.01 mg/L to 4 g/L and 13 mg/L, respectively. The numbers of total detected photoelectrons suggest that, with the optically purified solvent, the bis-MSB concentration does not need to be more than 4 mg/L. To bridge the one order of magnitude in the detector size difference between Daya Bay and JUNO, the Daya Bay data were used to tune the parameters of a newly developed optical model. Then, the model and tuned parameters were used in the JUNO simulation. This enabled to determine the optimal composition for the JUNO LS: purified solvent LAB with 2.5 g/L PPO, and 1 to 4 mg/L bis-MSB. © 2020 Elsevier B.V.