| Title: |
Measurement of the $^{85}$Kr specific activity in the GERDA liquid argon |
| Authors: |
Agostini, M.; Alexander, A.; Araujo, G.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Belogurov, S.; Bettini, A.; Bezrukov, L.; Biancacci, V.; Bossio, E.; Bothe, V.; Brugnera, R.; Caldwell, A.; Calgaro, S.; Cattadori, C.; Chernogorov, A.; Chiu, P.-J.; Comellato, T.; D’Andrea, V.; Demidova, E. V.; Marco, N. Di; Doroshkevich, E.; Fomina, M.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hemmer, S.; Hofmann, W.; Huang, J.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kermaïdic, Y.; Khushbakht, H.; Kihm, T.; Kilgus, K.; Kirpichnikov, I. V.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Krause, P.; Kuzminov, V. V.; Laubenstein, M.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Marshall, G.; Misiaszek, Marcin; Morella, M.; Müller, Y.; Nemchenok, I.; Neuberger, M.; Pandola, L.; Pelczar, K.; Pertoldi, L.; Piseri, P.; Pullia, A.; Ransom, C.; Rauscher, L.; Redchuk, M.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Sailer, S.; Salamida, F.; Schönert, S.; Schreiner, J.; Schütz, A.-K.; Schulz, O.; Schwarz, M.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Shtembari, L.; Simgen, H.; Smolnikov, A.; Stukov, D.; Sullivan, S.; Vasenko, A. A.; Veresnikova, A.; Vignoli, C.; Sturm, K. von; Wester, T.; Wiesinger, C.; Wójcik, Marcin; Yanovich, E.; Zatschler, B.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zschocke, A.; Zuber, K.; Zuzel, Grzegorz |
| Publication Year: |
2025 |
| Collection: |
Jagiellonian University Repository |
| Description: |
The radioactive isotope $^{85}$Kr is found in significant quantities in the atmosphere largely due to nuclear industry. Its β-decay with a half-life of 10.7 years and a Q-value of 687 keV is a dangerous background source for low-threshold noble gas and liquid detectors, which distill their detector medium from air. The Gerda experiment was operating high-purity germanium detectors immersed in a clean liquid argon bath deep underground to search for neutrinoless double beta decay with unprecedented sensitivity. The $^{85}$Kr specific activity in the liquid argon at the start of the second phase of the experiment has been determined to be (0.36 $\pm$ 0.03) mBq/kg through an analysis of the full subsequent data set that exploits the excellent γ-ray spectroscopic capabilities of GERDA. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
European Physical Journal C, T. 85, nr 5; https://ruj.uj.edu.pl/handle/item/558781 |
| DOI: |
10.1140/epjc/s10052-025-14135-8 |
| Availability: |
https://ruj.uj.edu.pl/handle/item/558781; https://doi.org/10.1140/epjc/s10052-025-14135-8 |
| Rights: |
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa ; http://creativecommons.org/licenses/by/4.0/legalcode.pl |
| Accession Number: |
edsbas.EBAC9C98 |
| Database: |
BASE |