Decay of 154Pm to Levels of 154Sm
- 1 July 1974
- journal article
- research article
- Published by Physical Society of Japan in Journal of the Physics Society Japan
- Vol. 37 (1) , 10-16
- https://doi.org/10.1143/jpsj.37.10
Abstract
Decay of 154 Pm isomers has been studied with Ge(Li), NaI(Tl) and plastic detectors. Sources were prepared by the 154 Sm(n, p) 154 Pm reaction with about 15 MeV neutrons. Seventy-five γ-rays have been observed and 57 of them are assigned to the 154 Sm level scheme including four new levels at 1815.8, 1879.3, 2592.3 and 2618.8 keV. Observed Q β values were 3.9±0.2 MeV. Most probable spin assignments of 0 ± or 1 ± and 3 ± or 4 ± are proposed for the 1.7±0.2 min and 2.9±0.2 min 154 Pm, respectively.Keywords
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