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arXiv · 2302.05254

Gamma-ray energies and intensities observed in decay chain $^{83}Rb$/$^{83m}Kr$/$^{83}Kr$

M. Šefčík·D. Vénos·O. Lebeda·C. Noll·J. Ráliš
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Abstract

Radioactive sources of the monoenergetic low-energy conversion electrons from the decay of isomeric $^{83m}Kr$ 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 $^{83}Rb$. In order to get more precise data on the gamma-rays occuring in the $^{83}Rb$/$^{83m}Kr$ 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 this 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.

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M. Šefčík, D. Vénos, O. Lebeda, C. Noll, J. Ráliš. 2023-02-10. Gamma-ray energies and intensities observed in decay chain $^{83}Rb$/$^{83m}Kr$/$^{83}Kr$. https://doi.org/10.1140/epja/s10050-023-00993-x

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