Calibration of liquid argon detector with ${}^{83m}Kr$ and ${}^{22}Na$ in different drift field

Abstract

${}^{83m}Kr$ and ${}^{22}Na$ have been used in calibrating a liquid argon (LAr) detector.${}^{83m}Kr$ atoms are produced through the decay of ${}^{83}Rb$ and introduced into the LAr detector through the circulating purification system. The light yield reaches 7.26$\pm$0.02 photonelectrons/keV for 41.5keV from ${}^{83m}Kr$ and 7.66$\pm$0.01 photonelectrons/keV for the 511keV from ${}^{22}Na$, as a comparison. The light yield varies with the drift electric field from 50 to 200V/cm have been also reported. After stopping fill, the decay rate of ${}^{83m}Kr$ with a fitted half-life of 1.83$\pm$0.11 h, which is consistent with the reported value of 1.83$\pm$0.02 h.

arXiv comment6 pages, 11figures, 2 tables

References in corpus (11)

• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• Dark Matter Results from 225 Live Days of XENON100 Data
• DarkSide-20k: A 20 Tonne Two-Phase LAr TPC for Direct Dark Matter Detection at LNGS
• Dark Matter Results from First 98.7-day Data of PandaX-II Experiment
• WIMP-Search Results from the Second CDMSlite Run
• First Results from the DarkSide-50 Dark Matter Experiment at Laboratori Nazionali del Gran Sasso
• Dark matter direct search sensitivity of the PandaX-4T experiment
• Calibration of a Liquid Xenon Detector with Kr-83m
• Measurement of the liquid argon energy response to nuclear and electronic recoils
• Ultra-stable implanted 83Rb/83mKr electron sources for the energy scale monitoring in the KATRIN experiment
• Preliminary test results of LAr prototype detector