Measurement of ambient radon progeny decay rates and energy spectra in liquid argon using the MicroBooNE detector

We report measurements of radon progeny in liquid argon within the MicroBooNE time projection chamber (LArTPC). The presence of specific radon daughters in MicroBooNE's 85 metric tons of active liquid argon bulk is probed with newly developed charge-based low-energy reconstruction tools and ana...

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Veröffentlicht in:	arXiv.org 2024-03
Hauptverfasser:	collaboration, MicroBooNE, Abratenko, P, Alterkait, O, Ashkenazi, A, Balasubramanian, S, Baller, B, Barr, G, Barrow, J, Basque, V, Berkman, S, Bhattacharya, M, Bishai, M, Blake, A, Bogart, B, Book, J Y, Cerati, G, Chen, Y, Conrad, J M, Cross, R, M Del Tutto, Dennis, S R, Djurcic, Z, Duffy, K, Evans, J J, Finnerud, O G, Foppiani, N, eman, W, Franco, D, Furmanski, A P, Garcia-Gamez, D, Gardiner, S, Gollapinni, S, Goodwin, O, Green, P, Guzowski, P, Hicks, R, Irwin, B, Itay, R, James, C, X Ji, Jo, J H, Kalra, D, Kamp, N, Karagiorgi, G, Kirby, M, Leibovitch, M B, Lepetic, I, J -Y Li, K Li, Lin, K, Luo, X, Marsden, D, Martinez Caicedo, D A, Martynenko, S, Meddage, V, Micallef, J, Miller, K, Mistry, K, Moor, A F, L Mora Lepin, Navrer-Agasson, A, Nebot-Guinot, M, Nowak, J, Oza, N, Parkinson, H, Patel, N, Pavlovic, Z, Ponce-Pinto, I, Pophale, I, Raaf, J L, Rafique, A, Ross-Lonergan, M, Rudolph von Rohr, C, Safa, I, Schukraft, A, Seligman, W, Snider, E L, Soldner-Rembold, S, Szelc, A M, Tang, W, Thorpe, C, Torbunov, D, Totani, D, Y -T Tsai, Tyler, J, Uchida, M A, Viren, B, Wei, H, Williams, Z, Wongjirad, T, Wospakrik, M, Wresilo, K, Wright, N, W Wu, Yang, T, Yates, L E, Yu, H W, Zeller, G P, Zennamo, J, Zhang, C
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Alpha rays Argon Confidence intervals Decay rate Energy spectra Liquid phases Neutrinos Physics - High Energy Physics - Experiment Physics - Instrumentation and Detectors Radiation counters Radon Sensors
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Zusammenfassung:	We report measurements of radon progeny in liquid argon within the MicroBooNE time projection chamber (LArTPC). The presence of specific radon daughters in MicroBooNE's 85 metric tons of active liquid argon bulk is probed with newly developed charge-based low-energy reconstruction tools and analysis techniques to detect correlated \(^{214}\)Bi-\(^{214}\)Po radioactive decays. Special datasets taken during periods of active radon doping enable new demonstrations of the calorimetric capabilities of single-phase neutrino LArTPCs for \(\beta\) and \(\alpha\) particles with electron-equivalent energies ranging from 0.1 to 3.0 MeV. By applying \(^{214}\)Bi-\(^{214}\)Po detection algorithms to data recorded over a 46-day period, no statistically significant presence of radioactive \(^{214}\)Bi is detected, and a limit on the activity is placed at \(
ISSN:	2331-8422
DOI:	10.48550/arxiv.2307.03102