Optical and chemical stability of the liquid scintillator of the iDREAM detector at the Kalinin nuclear power plant
Abramov A. V.1, Gromov M. B. 2,3, Zhutikov I. N.1, Konstantinov A. V.1, Kuznetsov D. S.1, Litvinovich E. A. 1,4, Lukyanchenko G. A.5, Machulin I. N.1,4, Murchenko A. E.1, Nemeryuk A. M.1, Nugmanov R. R. 1, Oralbaev A. Yu. 1,4, Popov D. V.1,4, Rastimeshin A. A.1,4, Sukhotin S. V.1, Chepurnov A. S.2, Chmykhalo D. A.1,4, Etenko A. V.1,4
1National Research Center “Kurchatov Institute”, Moscow, Russia
2Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia
3Joint Institute for Nuclear Research, Dubna, Moscow oblast, Russia
4National Research Nuclear University “MEPhI”, Moscow, Russia
5Lomonosov Moscow State University, Moscow, Russia
Email: gromov@physics.msu.ru, Litvinovich_EA@nrcki.ru, Nugmanov_RR@nrcki.ru, Oralbaev_AY@nrcki.ru

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Optical and chemical stability studies were performed for a Gd-doped liquid scintillator synthesized for using in a prototype of industrial reactor antineutrino detector iDREAM. It is shown that the scintillator solution 1.1 m3 in volume remains stable for two years of observations provided the temperature is kept below ~ 20oC and contact with air is prevented. Keywords: neutrino detector, liquid scintillator, reactor antineutrino. DOI: 10.61011/TPL.2023.08.56682.19627
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