Branching ratio and γ -ray emission probabilities in the decay of the Jπ=13/2+ isomer in 197Hg

Lebeda, O.; Kondev, F. G.; Červenák, J.

doi:10.1016/j.nima.2020.163481

Branching ratio and $γ$ -ray emission probabilities in the decay of the $J^{π} = 13 / 2^{+}$ isomer in 197Hg

Journal Article · Mon Jan 20 23:00:00 EST 2020 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2020.163481· OSTI ID:1607861

Lebeda, O. ^[1]; Kondev, F. G. ^[2]; Červenák, J. ^[1]

Czech Academy of Sciences (Czech Republic)
Argonne National Lab. (ANL), Argonne, IL (United States)

Gamma rays following the decay of the $^{197 g}$ Hg and $^{197 m}$ Hg radionuclides were measured using chemically-purified sources and a planar HPGe detector. In the case of $^{197 m}$ Hg, precise values of 94.68 (9)% and 5.32 (9)% were confirmed for the IT and EC branches, respectively, the latter discovered to differ significantly from previously published data. The half-lives of $^{197 g}$ Hg and $^{197 m}$ Hg were also measured as 64.81 (24) h and 23.82 (4) h.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); Ministry of Education, Youth and Sports of the Czech Republic

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1607861

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Journal Issue: C Vol. 959; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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References (19)

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Branching ratio and $γ$ -ray emission probabilities in the decay of the $J^{π} = 13 / 2^{+}$ isomer in 197Hg