@article{b1718cbf4e314f9a826d4fbc45369a30,
title = "Measurement of ambient radon progeny decay rates and energy spectra in liquid argon using the MicroBooNE detector",
abstract = "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 Bi214-Po214 radioactive decays. Special datasets taken during periods of active radon doping enable new demonstrations of the calorimetric capabilities of single-phase neutrino LArTPCs for β and α particles with electron-equivalent energies ranging from 0.1 to 3.0 MeV. By applying Bi214-Po214 detection algorithms to data recorded over a 46-day period, no statistically significant presence of radioactive Bi214 is detected, and a limit on the activity is placed at <0.35 mBq/kg at the 95% confidence level. This bulk Bi214 radiopurity limit-the first ever reported for a liquid argon detector incorporating liquid-phase purification-is then further discussed in relation to the targeted upper limit of 1 mBq/kg on bulk Rn222 activity for the DUNE neutrino detector.",
author = "{(The MicroBooNE Collaboration)} and P. Abratenko and O. Alterkait and {Andrade Aldana}, D. and L. Arellano and J. Asaadi and A. Ashkenazi and S. Balasubramanian and B. Baller and G. Barr and D. Barrow and J. Barrow and V. Basque and {Benevides Rodrigues}, O. and S. Berkman and A. Bhanderi and A. Bhat and M. Bhattacharya and M. Bishai and A. Blake and B. Bogart and T. Bolton and Book, {J. Y.} and L. Camilleri and Y. Cao and D. Caratelli and {Caro Terrazas}, I. and F. Cavanna and G. Cerati and Y. Chen and Conrad, {J. M.} and M. Convery and L. Cooper-Troendle and Crespo-Anad{\'o}n, {J. I.} and R. Cross and {Del Tutto}, M. and Dennis, {S. R.} and P. Detje and A. Devitt and R. Diurba and Z. Djurcic and R. Dorrill and K. Duffy and S. Dytman and B. Eberly and P. Englezos and A. Ereditato and Evans, {J. J.} and R. Fine and Finnerud, {O. G.} and E. Piasetzky",
note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",
year = "2024",
month = mar,
day = "1",
doi = "10.1103/PhysRevD.109.052007",
language = "אנגלית",
volume = "109",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "5",
}