Gamma-ray energies and intensities observed in decay chain .sup.83./sup.Rb/.sup.83m./sup.Kr/.sup.83./sup.Kr

0572324 - ÚJF 2024 RIV US eng J - Journal Article
Šefčík, Michal - Vénos, Drahoslav - Lebeda, Ondřej - Noll, C. - Ráliš, Jan
Gamma-ray energies and intensities observed in decay chain ⁸³Rb/^83mKr/⁸³Kr.
European Physical Journal A. Roč. 59, č. 4 (2023), č. článku 82. ISSN 1434-6001. E-ISSN 1434-601X
R&D Projects: GA MŠMT LTT19005; GA MŠMT EF16_013/0001812
Institutional support: RVO:61389005
Keywords : KATRIN * gamma-ray spectra
OECD category: Particles and field physics
Impact factor: 2.6, year: 2022
Method of publishing: Open access
https://doi.org/10.1140/epja/s10050-023-00993-x

Radioactive sources of the monoenergetic low energy conversion electrons from the decay of isomeric 83mKr are frequently used in the systematic measurements, particularly in the neutrino mass and dark matter experiments. For this purpose, the isomer is obtained by the decay of its parent radionuclide Rb-83. In order to get more precise data on the gamma-rays occuring in the( 83)Rb/Kr-83m chain, we re measured the relevant gamma-ray spectra, because the previous measurement took place in 1976. The obtained intensities are in fair agreement with the previous measurement. We have, however, improved the uncertainties by a factor of 4.3, identified a new gamma transition and determined more precisely energies of weaker gamma transitions.
Permanent Link: https://hdl.handle.net/11104/0343060