Abstract
Measurement of the ionization yields for nuclear recoils is related to the energy calibration of dark matter and low-energy neutrino detectors. In this study, some results of the previous measurements of the ionization yields for nuclear recoils in liquid argon using the neutron scattering technique in the two-phase detector are discussed. The methods to increase light collection of scintillation (S1) and ionization (S2) signals in the two-phase detector using SiPM matrices and THGEM electrodes with increased optical transparency are proposed. These steps are necessary to implement the neutron double-scattering technique, which will provide measurement of the ionization yield of recoiling nuclei in the unexplored energy range.
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ACKNOWLEDGMENTS
The study was supported by the Russian Science Foundation, project no. 14-50-00080); the study was performed in the framework of the research program for DarkSide-20k experiment.
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Bondar, A.E., Buzulutskov, A.F., Dolgov, A.D. et al. Some Problems of Measurements of Ionization Yields for Nuclear Recoils in Liquid Argon Using Neutron Scattering in a Two-Phase Detector. Phys. Part. Nuclei 49, 781–786 (2018). https://doi.org/10.1134/S1063779618040160
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DOI: https://doi.org/10.1134/S1063779618040160