Электронный каталог

Статья

Agostini, M.
Measurement of the *8*5Kr Specific Activity in the GERDA Liquid Argon / M.Agostini, M.Fomina, K.Gusev, A.Klimenko, O.Kochetov, A.Lubashevskiy, I.Nemchenok, N.Rumyantseva, E.Shevchik, M.Shirchenko, A.Smolnikov, I.Zhitnikov, D.Zinatulina, [a.o.]. – Text : electronic // The European Physical Journal C. – 2025. – Vol. 85, No. 5. – P. 518. – URL: https://doi.org/10.1140/epjc/s10052-025-14135-8. – Bibliogr.: 31.

The radioactive isotope *8*5Kr 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 *8*5Kr specific activity in the liquid argon at the start of the second phase of the experiment has been determined to be (0.36 ± 0.03)mBq/kg through an analysis of the full subsequent data set that exploits the excellent γ-ray spectroscopic capabilities of Gerda.



ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 341.1б - Бета-распад и К-захват. Схемы распада и спектры
Спец.(статьи,препринты) = С 344.1 - Методы и аппаратура для регистрации элементарных частиц и фотонов$
Бюллетени = 29/025