Abstract
Gamma-rays associated with the decay of152Eu to152Sm and152Gd have been investigated using Ge(Li) and hyper pure Ge spectrometers. The gamma-gamma coincidence studies have been performed using a NaI(Tl)−Ge(Li) coincidence spectrometer.
Seven new gamma rays (109, 148, 239.5, 258, 273.5, 383 and 492 keV) have been identified, and a new level at energy 640 keV in152Sm has been suggested as the fourth member of the ground state rotational band. Moreover, the existence of a previously reported level at 1132 keV through proton scattering has been confirmed and found to be the 6+ member of the β-vibrational band in152Sm. A proposal is also given for a 4+ level at an energy 1381 keV in152Gd.
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Ismail, H.A., Hanafi, H., Morsy, M. et al. The radioactive decay of152Eu. Acta Physica 50, 391–402 (1981). https://doi.org/10.1007/BF03157903
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DOI: https://doi.org/10.1007/BF03157903