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DOE OSTI · 22879541

Nuclear Data Sheets for A=254☆

Singh, Balraj
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Abstract

Spectroscopic data for known A=254 nuclides (U, Cf, Es, Fm, Md, No, Lr and Rf) have been updated and re-evaluated, superseding the data presented in the previous evaluation 2005Bh12 published by A. Bhagwat, N.J. Thompson and J.K. Tuli. With the exception of the {sup 254}No nuclide, excited-state data for A=254 nuclei are largely unknown. The decay of the 184−μs isomer in {sup 254}No has been studied in two independent experiments, results of which differ significantly, thus precluding adoption of any one particular decay scheme. Only the features that are consistent in these studies are included in the Adopted dataset, whereas independent decay schemes are presented in separate datasets. Information is also presented here for possible production of the {sup 254}U nuclide in a study (1960Di03) of debris of the first large-scale thermonuclear test (Ivy Mike) of November 1, 1952 in the Pacific Ocean.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSBERKELIUM 254CALIFORNIUM 254EINSTEINIUM 254EXCITED STATESFERMIUM 254LAWRENCIUM 254MENDELEVIUM 254NOBELIUM 254NUCLEAR DECAYRUTHERFORDIUM 254

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BibTeXRIS

Singh, Balraj. 2019-02-15. Nuclear Data Sheets for A=254☆. https://doi.org/10.1016/j.nds.2019.02.003

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