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Development and mass production of a mixture of LAB- and DIN-based gadolinium-loaded liquid scintillator for the NEOS short-baseline neutrino experiment

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Title: Development and mass production of a mixture of LAB- and DIN-based gadolinium-loaded liquid scintillator for the NEOS short-baseline neutrino experiment

Author(s): Kim, BR; Han, B; Eunju Jeon; Joo, KK; Kim, HJ; Kim, H; Kim, J; Yeongduk Kim; Ko, Y; Jaison Lee; Lee, J; Moo Hyun Lee; Yoomin Oh; Hyangkyu Park; Kang-soon Park; Seo, K; Seon, GM; Siyeon, K

Subject: Base organic solvent, ; Gadolinium (Gd), ; Liquid scintillator, ; LAB, ; DIN, ; Neutrino, ; Optical properties

Publication Date: 2016-10

Journal: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, v.310, no.1, pp.311 - 316

Publisher: SPRINGER

Abstract: A new experiment, called the NEutrino Oscillation at Short baseline (NEOS), is proposed on the site of Hanbit Reactors at Yonggwang, South Korea, to investigate a reactor antineutrino anomaly. The homogeneous NEOS detector having a 1000-l target volume was constructed and deployed at the tendon gallery 25 m away from the reactor core. The NEOS detector employs a linear alkylbenzene (LAB) based gadolinium loaded liquid scintillator with 10 % di-isopropylnaphthalene (DIN) based liquid scintillator to improve the particle identification via pulse shape discrimination. In this paper, we report the procedure for the mass production of the Gd-loaded scintillator for the NEOS detector. (c) Akade´miai Kiado´, Budapest, Hungary 2016