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Reactor neutrino physics potentials of cryogenic pure-CsI crystal.
- Source :
- European Physical Journal C -- Particles & Fields; Apr2024, Vol. 84 Issue 4, p1-11, 11p
- Publication Year :
- 2024
-
Abstract
- This paper presents a world-leading scintillation light yield among inorganic crystals measured from a 0.5 kg pure-CsI detector operated at 77 Kelvin. Scintillation photons were detected by two 2-inch Hamamatsu SiPM arrays equipped with cryogenic front-end electronics. Benefiting the light yield enhancement of pure-CsI at low temperatures and the high photon detection efficiency of SiPM, a light yield of 30.1 photoelectrons per keV energy deposit was obtained for X-rays and γ -rays with energies from 5.9 to 59.6 keV. Instrumental and physical effects in the light yield measurement are carefully analyzed. This is the first stable cryogenic operation of kg-scale pure-CsI crystal readout by SiPM arrays at liquid nitrogen temperatures for several days. The world-leading light yield opens a door for the usage of pure-CsI crystal in several fields, particularly in detecting the coherent elastic neutrino-nucleus scattering of reactor neutrinos. The potential of using pure-CsI crystals in neutrino physics is discussed in the paper. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14346044
- Volume :
- 84
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- European Physical Journal C -- Particles & Fields
- Publication Type :
- Academic Journal
- Accession number :
- 177311795
- Full Text :
- https://doi.org/10.1140/epjc/s10052-024-12800-y