Speaker
Description
Coherent elastic neutrino-nucleus scattering (CEvNS) provides a unique channel for the detection of neutrinos. The REactor neutrino LIquid xenon Coherent Scattering experiment (RELICS) aims to detect CEvNS signals from reactor neutrinos using a 50 kg-scale liquid xenon time projection chamber (LXeTPC). To validate the principles and key technologies of RELICS experiment, we developed a 0.56-kg prototype detector equipped with 14 1-inch photomultiplier tubes (PMTs), and integrated systems for cryogenics, purification, and data acquisition. In this talk, we will present detailed test results of the prototype, and focus on single-electron readout, detector responses of Ar-37 and Kr-83m calibration sources, and background characters in the sub-keV energy region. These studies not only preliminarily verified the low-threshold detection principle of future full-scale RELICS experiment, but also provide measurements of scintillation and ionization characterizations of liquid and gaseous xenon under low-energy electronic recoil conditions.
| Collaboration you are representing | RELICS collaboration |
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