Level structure of175Lu
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Eleven gamma-ray transitions have been identified in175Lu, by performing singles, prompt ψ−ψ coincidence and delayed ψ−ψ coincidence measurements using Ge(Li), hyper pure Ge and NaI (TI) detectors. Two of these transitions (18 and 28.5 keV) have been observed for the first time and are of value in supporting a recently reported energy level at 371 keV.
Energy levels of rotational bands, 1−/2 ; 5+/2  and 7+/2  have been fitted using the angular momentum expansion. The required parameters are given. The previously doubted spins 15−/2 (1137 keV) and the 21−/2 (1078 keV) in the band 1−/2  have been theoretically confirmed while an experimental energy state at 845 keV of doubted spin 13+/2 could be reasonably fitted to the 5+/2  rotational band.
KeywordsRotational Band Gamma Transition Coincidence Spectrum Spectroscopy Amplifier Coincidence Spectrometer
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