Development of barium and strontium fluoride multi-composite scintillation detection systems for neutrino experiments: COFE technology (Chemical Optical Fluoride Engineering)
Filosofov D.V. Antokhina K.V. Belov V.V. Dovbnenko M.S. Kalinova B.E. Karaivanov D.V. Kazartsev S.V. Klimenko A.A. Kuznetsov A.S. Mirzayev N.A. Ponomarev D.V. Rakhimov A.V. Rozov S.V. Tsvetkov M.P. Shevchik E.A. Shirchenko M.V. Temerbulatova N.T. Timkin V.V. Velichkov A.I. Vorobyeva M. Zhitnikov I.V. Yakushev E.A.
1 August 2025Institute of Physics
Journal of Instrumentation
2025#20Issue 8
It is presented the design of a compact neutrino detector based on composite scintillation materials devoted for high-efficiency detection of positron, both annihilation gamma quanta and neutron after the reaction of inverse beta-decay. The detector utilizes a combination of barium fluoride (BaF2) mini crystals, hydrogen-containing glycerol as a medium for the reaction, and neutron-absorbing additives such as gadolinium fluoride (GdF3) or cadmium chloride (CdCl2). The design is optimized to achieve compatibility in refractive indices between scintillation components and the medium, enhancing light collection. Over 30 composite systems were assembled and characterized for light output efficiency using a 137Cs gamma source. Results demonstrate that these systems successfully detect gamma radiation up to 500-600 keV and show potential for future neutrino registration.
Digital signal processing (DSP) , Neutrino detectors , Scintillators and scintillating fibres and light guides , Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators)
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Department of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, Russian Federation
Department of experimental physics, The Institute for Nuclear Research (INR), the Russian Academy of Sciences, prospekt 60-letiya Oktyabrya 7a, Moscow, Russian Federation
Laboratory of Positron Spectroscopy, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee Blvd., Sofia, Bulgaria
WWR-K Research Reactor Complex, Institute of Nuclear Physics, Ministry of Energy of the Republic of Kazakhstan, 1 Ibragimov Street, Almaty, Kazakhstan
Nuclear Analytical Laboratory, Institute of Nuclear Physics, Academy of Sciences, the Republic of Uzbekistan, 1 Ulugbek Street, Tashkent, Uzbekistan
Laboratory of Radiochemestry and Radioprotectors, Institute of Radiation Problems, Ministry of Science and Education, the Republic of Azerbaijan, 9 F. Agayev Street, Baku, Azerbaijan
Khazar University, 41 Mehseti Street, Baku, Azerbaijan
Department of Inorganic Chemistry, Faculty of Chemistry and Pharmacy, University of Sofia St. Kliment Ohridski, 1 James Bourchier Blvd., Sofia, Bulgaria
Department of Nuclear Spectroscopy and Radiochemistry
Department of experimental physics
Laboratory of Positron Spectroscopy
WWR-K Research Reactor Complex
Nuclear Analytical Laboratory
Laboratory of Radiochemestry and Radioprotectors
Khazar University
Department of Inorganic Chemistry
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