Agostini, M;
Alexander, A;
Araujo, G;
Bakalyarov, AM;
Balata, M;
Barabanov, I;
Baudis, L;
... Zuze, G; + view all
(2025)
Measurement of the 85Kr specific activity in the GERDA liquid argon.
The European Physical Journal C
, 85
(5)
, Article 518. 10.1140/epjc/s10052-025-14135-8.
Preview |
PDF
s10052-025-14135-8.pdf - Published Version Download (1MB) | Preview |
Abstract
The radioactive isotope 85Kr 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 85Kr specific activity in the liquid argon at the start of the second phase of the experiment has been determined to be mBq/kg through an analysis of the full subsequent data set that exploits the excellent γ -ray spectroscopic capabilities of Gerda.
| Type: | Article |
|---|---|
| Title: | Measurement of the 85Kr specific activity in the GERDA liquid argon |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1140/epjc/s10052-025-14135-8 |
| Publisher version: | https://doi.org/10.1140/epjc/s10052-025-14135-8 |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10208533 |
Archive Staff Only
 |
View Item |
