The decay of 144Pm
- 1 October 1968
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Physics
- Vol. 46 (19) , 2181-2187
- https://doi.org/10.1139/p68-564
Abstract
In the electron-capture decay of 144Pm prepared by (p, 2n) reaction on enriched 145Nd, it is shown that, in addition to the well-known energy levels at 696, 1313, and 1789 keV, two new levels exist, one at 2093 keV, and another at 1509 keV. The state at 2093 keV deexcites with the emission of a 304-keV gamma ray to the 6+ level at 1789 keV, and by a crossover transition to the 4+ level at 1313 keV with the emission of a 780-keV gamma ray. The level at 1509 keV leads to the first excited state (2+) at 696 keV with the emission of a gamma ray of energy 813 keV. The intensities of the 780-, 304-, and 813-keV gamma rays are, respectively, 1.5, ≈ 0.1, and 0.5% of that of the 696-keV gamma ray.Keywords
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