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.
@article{arxiv.1910.06190,
title = {First ground-level laboratory test of the two-phase xenon emission detector RED-100},
author = {D. Yu. Akimov and V. A. Belov and A. I. Bolozdynya and Yu. V. Efremenko and A. V. Etenko and A. V. Galavanov and D. V. Gouss and Yu. V. Gusakov and Dj. Ed. Kdib and A. V. Khromov and A. M. Konovalov and V. N. Kornoukhov and A. G. Kovalenko and E. S. Kozlova and A. V. Kumpan and A. V. Lukyashin and Yu. A. Melikyan and V. V. Moramzin and O. E. Razuvaeva and D. G. Rudik and A. V. Shakirov and G. E. Simakov and V. V. Sosnovtsev and Yu. V. Stogov and A. A. Vasin},
journal= {arXiv preprint arXiv:1910.06190},
year = {2020}
}