First ground-level laboratory test of the two-phase xenon emission detector RED-100

• Published in: arXiv.org 2019-10
• Main Authors: D Yu Akimov, Belov, V A, Bolozdynya, A I, Efremenko, Yu V, Etenko, A V, Galavanov, A V, Gouss, D V, Gusakov, Yu V, Dj Ed Kdib, Khromov, A V, Konovalov, A M, Kornoukhov, V N, Kovalenko, A G, Kozlova, E S, Kumpan, A V, Lukyashin, A V, Melikyan, Yu A, Moramzin, V V, Razuvaeva, O E, Rudik, D G, Shakirov, A V, Simakov, G E, Sosnovtsev, V V, Stogov, Yu V, Vasin, A A
• Format: Article
• Language: English
• Subjects: Antineutrinos; Coherent scattering; Elastic scattering; Electrodes; Emission analysis; Laboratories; Laboratory tests; Noise reduction; Nuclear power plants; Nuclear reactors; Nuclei (nuclear physics); Phase detectors; Polytetrafluoroethylene; Sensors; Single electrons; Xenon
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1910.06190

RED-100 is a two-phase detector for study of coherent elastic scattering of reactor electron antineutrinos off xenon atomic nuclei. The detector contains a total of 200 kg of liquid xenon in a titanium cryostat with 160 kg of xenon in active volume inside a Teflon-made light collection cage associated with electrode system. The active volume is viewed by two arrays of nineteen 3"-diameter Hamamatsu R11410-20 PMTs assembled in two planes on top and bottom. The electrode system is equipped with an electron shutter (a patented device) to reduce a "spontaneous" single-electron noise. The detector was tested in a ground-level laboratory. The obtained results demonstrate that detection of coherent elastic scattering of reactor antineutrinos off xenon nuclei at Kalinin nuclear power plant with the RED-100 detector is feasible with a threshold of 4 ionization electrons.